Carrier 48HE003 006 User Manual
48HJ004---007  
48HE003---006  
Single---Package Rooftop Heating/Cooling  
Standard and Low NOx Units  
Installation Instructions  
CONTENTS  
SAFETY CONSIDERATIONS  
Page  
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . 1  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Installation and servicing of air-conditioning equipment can be  
hazardous due to system pressure and electrical components.  
Only trained and qualified service personnel should install, repair,  
or service air-conditioning equipment.  
1
Step 1--Provide Unit Support . . . . . . . . . . . . . . . . . . . . . . . 2  
ROOF CURB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
SLAB MOUNT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
ALTERNATE UNIT SUPPORT . . . . . . . . . . . . . . . . . 2  
Untrained personnel can perform basic maintenance functions of  
cleaning coils and filters and replacing filters. All other operations  
should be performed by trained service personnel. When working  
on air-conditioning equipment, observe precautions in the  
literature, tags and labels attached to the unit, and other safety  
precautions that may apply.  
Step 2--Field Fabricate Ductwork . . . . . . . . . . . . . . . . . . .  
2
Follow all safety codes. Wear safety glasses and work gloves. Use  
quenching cloth for unbrazing operations. Have fire extinguishers  
available for all brazing operations.  
Step 3--Install External Trap for Condensate Drain . . . . . . . 2  
Step 4--Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . . . . . 2  
POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Step 5 — Install Flue Hood . . . . . . . . . . . . . . . . . . . . . . . . 4  
Step 6 — Install Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . 4  
Step 7 — Make Electrical Connections . . . . . . . . . . . . . . . . 8  
FIELD POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . 8  
FIELD CONTROL WIRING . . . . . . . . . . . . . . . . . . . . 8  
HEAT ANTICIPATOR SETTINGS . . . . . . . . . . . . . . . 8  
Step 8 — Adjust Factory-Installed Options . . . . . . . . . . . 17  
COBRA™ ENERGY RECOVERY UNITS . . . . . . . 17  
Recognize safety information. This is the safety--alert symbol  
.
When you see this symbol on the furnace and in  
instructions or manuals, be alert to the potential for personal  
injury.  
Understand the signal words DANGER, WARNING, and  
CAUTION. These words are used with the safety--alert symbol.  
DANGER identifies the most serious hazards which will result in  
severe personal injury or death. WARNING signifies a hazard  
which could result in personal injury or death. CAUTION is used  
to identify unsafe practices which may result in minor personal  
injury or product and property damage. NOTE is used to  
highlight suggestions which will result in enhanced installation,  
reliability, or operation.  
HUMIDI-MIZER™ ADAPTIVE  
DEHUMIDIFICATION SYSTEM . . . . . . . . . . . . . . 17  
MANUAL OUTDOOR-AIR DAMPER . . . . . . . . . . 17  
CONVENIENCE OUTLET . . . . . . . . . . . . . . . . . . . . 17  
NOVAR CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . 17  
PREMIERLINK™ CONTROL . . . . . . . . . . . . . . . . . 19  
!
WARNING  
ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could cause personal  
injury or death.  
OPTIONAL ECONOMI$ER IV AND  
ECONOMI$ER2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
Before performing service or maintenance operations  
on unit, turn off main power switch to unit and install  
lockout tag. Ensure electrical service to rooftop unit  
agrees with voltage and amperage listed on the unit  
rating plate.  
ECONOMI$ER IV STANDARD SENSORS . . . . . . 23  
ECONOMI$ER IV CONTROL MODES . . . . . . . . . 24  
Step 9 — Adjust Evaporator-Fan Speed . . . . . . . . . . . . . . 29  
PRE--START--UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
START--UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58  
START--UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . 63  
1
D ALT  
DRAIN  
HOLE  
ROOF CURB  
ACCESSORY  
UNIT  
SIZE  
CONNECTOR  
PKG. ACCY.  
ACCESSORY  
POWER  
A
B
C
GAS  
POWER  
CONTROL  
1 -2  
[356]  
2 -0  
[610]  
CRRFCURB001A01  
CRRFCURB002A01  
3
3
3
CRBTMPWR001A01  
CRBTMPWR002A01  
/
[19] NPT  
4
/
48HJ004-007  
48HE003-006  
[19] 4NPT  
11/4 [31.7]  
1 -911  
/
1 -4  
13/4  
[44.5]  
/
/
2
1
1
1
[5511]6 [406]  
[12.7]  
[12.7]  
2
/
2
CRBTMPWR003A01  
CRBTMPWR004A01  
/
[19] NPT  
4
[12.7] NPT  
3
/
[19] 4NPT  
NOTES:  
11/4 [31.7]  
1. Roof curb accessory is shipped disassembled.  
2. Insulated panels.  
3. Dimensions in [ ] are in millimeters.  
4. Roof curb: galvanized steel.  
5. Attach ductwork to curb (flanges of duct rest  
on curb).  
6. Service clearance: 4 ft on each side.  
7.  
Direction of airflow.  
8. Connector packages CRBTMPWR001A01  
and 002A01 are for thru-the-curb type gas.  
Packages CRBTMPWR003A01 and 004A01  
are for thru-the-bottom type gas connections.  
C06109  
Fig. 2 --- Roof Curb Details  
3
Lifting holes are provided in base rails as shown in Fig. 8 and 9.  
Refer to rigging instructions on unit.  
Flue vent discharge must have a minimum horizontal clearance of  
4 ft from electric and gas meters, gas regulators, and gas relief  
equipment.  
After unit is in position, remove shipping materials and rigging  
skids.  
Step 5 —Install Flue Hood  
!
WARNING  
PROPERTY DAMAGE HAZARD  
Flue hood is shipped screwed to the burner compartment access  
panel. Remove from shipping location and, using screws  
provided, install flue hood in location shown in Fig. 8 and 9.  
For units being installed in California Air Quality Management  
Districts which require NOx emissions of 40 nanograms/joule or  
less, a low NOx unit must be installed.  
Failure to follow this warning could result in personal  
injury, death and property damage.  
All panels must be in place when rigging and lifting.  
positioning  
Maintain clearance around and above unit to provide minimum  
distance from combustible materials, proper airflow, and service  
access. (See Fig. 7, 8 and 9.)  
NOTE: Low NOx units are available for 3 to 5 ton units.  
Position unit on roof curb so that the following clearances are  
1
maintained: / in. clearance between the roof curb and the base  
4
rail inside the front and rear, 0.0 in. clearance between the roof  
curb and the base rail inside on the duct end of the unit. This will  
result in the distance between the roof curb and the base rail  
inside on the condenser end of the unit being approximately  
equal to Fig. 2, section C-C.  
Do not install unit in an indoor location. Do not locate unit air  
inlets near exhaust vents or other sources of contaminated air.  
CONDENSATE PAN (SIDE VIEW)  
HORIZONTAL  
DRAIN PLUG  
DRAIN OUTLET  
NOTE: Drain plug is shown in factory-installed position.  
C06003  
Fig. 4 --- Condensate Drain Pan  
MAXIMUM ALLOWABLE  
DIFFERENCE (in.)  
A-B  
B-C  
A-C  
0.5  
1.0  
1.0  
C06110  
Fig. 3 --- Unit Leveling Tolerances  
Be sure that unit is installed such that snow will not block the  
combustion intake or flue outlet.  
Unit may be installed directly on wood flooring or on Class A, B,  
or C roof-covering material when roof curb is used.  
Although unit is weatherproof, guard against water from higher  
level runoff and overhangs.  
NOTE: Trap should be deep enough to offset maximum unit static  
difference. A 4-in. trap is recommended.  
C06004  
Fig. 5 --- Condensate Drain Piping Details  
Locate mechanical draft system flue assembly at least 48 in. from  
an adjacent building or combustible material. When unit is  
located adjacent to public walkways, flue assembly must be at  
least 7 ft above grade.  
NOTE: When unit is equipped with an accessory flue discharge  
deflector, allowable clearance is 18 inches.  
Step 6 —Install Gas Piping  
Unit is equipped for use with type of gas shown on nameplate.  
Refer to local  
building codes, or in the absence of local codes,  
to ANSI Z223.1-1984 and addendum Z223.1A-1987 entitled  
National Fuel Gas Code. In Canada, installation must be in  
accordance with the CAN1.B149.1 and CAN1.B149.2  
installation codes for gas burning appliances.  
Flue gas can deteriorate building materials. Orient unit such that  
flue gas will not affect building materials.  
Adequate combustion-air space must be provided for proper  
operation of this equipment. Be sure that installation complies  
with all local codes and Section 5.3, Air for Combustion and  
Ventilation, NFGC (National Fuel Gas Code), ANSI (American  
National Standards Institute) Z223.1-1984 and addendum  
Z223.1a-1987. In Canada, installation must be in accordance with  
the CAN1.B149.1 and CAN1.B149.2 installation codes for gas  
burning appliances.  
For natural gas applications, gas pressure at unit gas connection  
must not be less than 4 in. wg or greater than 13 in. wg while the  
unit is operating. On 48HJ005-007 high-heat units, the gas  
pressure at unit gas connection must not be less than 5 in. wg or  
greater than 13 in. wg while the unit is operating. For propane  
applications, the gas pressure must not be less than 5 in. wg or  
greater than 13 in. wg at the unit connection.  
Size gas supply piping for 0.5 in. wg maximum pressure drop.  
Do not use supply pipe smaller than unit gas connection.  
4
C06111  
Fig. 6 --- Rigging Details  
OPERATING  
WEIGHT  
DIMENSIONS  
“B”  
UNIT  
48HE  
“A”  
“C”  
“C”  
lb  
kg  
in.  
mm  
1872  
1872  
1872  
1872  
in.  
mm  
in.  
mm  
847  
847  
847  
847  
003  
004  
005  
006  
530  
540  
560  
635  
240  
245  
254  
288  
73.69  
73.69  
73.69  
73.69  
35.50  
35.50  
35.50  
35.50  
902  
902  
902  
902  
33.31  
33.31  
33.31  
33.31  
OPERATING  
WEIGHT  
DIMENSIONS  
“B”  
UNIT  
48HJ  
“A”  
lb  
kg  
in.  
mm  
1872  
1872  
1872  
1872  
in.  
mm  
902  
902  
902  
902  
in.  
mm  
847  
847  
847  
847  
004  
005  
006  
007  
530  
540  
560  
635  
240  
245  
254  
288  
73.69  
73.69  
73.69  
73.69  
35.50  
35.50  
35.50  
35.50  
33.31  
33.31  
33.31  
33.31  
!
WARNING  
PROPERTY DAMAGE HAZARD  
Failure to follow this warning could result in personal  
injury, death and property damage.  
All panels must be in place when rigging and lifting.  
See Fig. 11 for typical pipe guide and locations of external  
manual gas shutoff valve.  
NOTE: If accessory thru-the-bottom connections and roof curb  
are used, refer to the Thru-the-Bottom Accessory Installation  
Instructions for information on power wiring and gas  
connection piping. The power wiring, control wiring and gas  
piping can be routed through field-drilled holes in the basepan.  
The basepan is specially designed and dimpled for drilling the  
access connection holes.  
C06208  
Fig. 7 --- Roof Curb Alignment  
!
WARNING  
Support gas piping as shown in the table in Fig. 11. For example,  
3
a
/ -in. gas pipe must have one field-fabricated support beam  
4
FIRE, EXPLOSION HAZARD  
every 8 ft. Therefore, an 18-ft long gas pipe would have a  
minimum of 3 support beams, and a 48-ft long pipe would have a  
minimum of 6 support beams.  
Failure to follow this warning could result in personal  
injury, death and/or property damage.  
When connecting the gas line to the unit gas valve, the  
installer MUST use a backup wrench to prevent damage  
to the valve.  
5
6
7
field power supply  
All units except 208/230-v units are factory wired for the voltage  
shown on the nameplate. If the 208/230-v unit is to be connected  
to a 208-v power supply, the transformer must be rewired by  
moving the black wire from the 230-v terminal on the  
transformer and connecting it to the 200-v terminal from the  
transformer.  
Refer to unit label diagram for additional information. Pigtails  
are provided for field service. Use factory-supplied splices or UL  
(Underwriters’ Laboratories) approved copper connector.  
When installing units, provide a disconnect per NEC.  
All field wiring must comply with NEC and local  
requirements.  
Install conduit through side panel openings indicated in Fig. 8.  
Route power lines through connector to terminal connections as  
shown in Fig. 12.  
C06114  
Fig. 10 --- Flue Hood Details  
Voltage to compressor terminals during operation must be within  
voltage range indicated on unit nameplate (also see Tables 3 and  
4). On 3-phase units, voltages between phases must be balanced  
within 2% and the current within 10%. Use the formula shown in  
Tables 3 and 4, Note 3 to determine the percent voltage  
imbalance. Operation on improper line voltage or excessive phase  
imbalance constitutes abuse and may cause damage to electrical  
components. Such operation would invalidate any applicable  
Carrier warranty.  
NOTE: If accessory thru-the-bottom connections and roof curb  
are used, refer to the Thru-the-Bottom Accessory Installation  
Instructions for information on power wiring and gas connection  
piping. The power wiring, control wiring and gas piping can be  
routed through field-drilled holes in the basepan. The basepan is  
specially designed and dimpled for drilling the access connection  
holes. (See Fig. 2.)  
LEGEND  
NFGC — National Fuel Gas Code  
*Field supplied.  
NOTE: Follow all local codes.  
field control wiring  
SPACING OF SUPPORTS  
Install  
a
Carrier-approved accessory thermostat assembly  
according to installation instructions included with the accessory.  
Locate thermostat assembly on a solid wall in the conditioned  
space to sense average temperature in accordance with thermostat  
installation instructions.  
Route thermostat cable or equivalent single leads of colored wire  
from subbase terminals through connector on unit to low-voltage  
connections (shown in Fig. 13 and 14).  
STEEL PIPE  
SPACING OF SUPPORTS  
NOMINAL DIAMETER (in.)  
X DIMENSION (ft)  
1
/
6
8
10  
2
3/4 or 1  
11/4 or larger  
C06115  
Fig. 11 --- Gas Piping Guide (With Accessory  
Thru--the--Curb Service Connections)  
Connect thermostat wires to matching screw terminals of  
low-voltage connection board. (See Fig. 13 and 14.)  
Step 7 —Make Electrical Connections  
NOTE: For wire runs up to 50 ft, use no. 18 AWG (American  
Wire Gauge) insulated wire (35_C minimum). For 50 to 75 ft, use  
no. 16 AWG insulated wire (35_C minimum). For over 75 ft, use  
no. 14 AWG insulated wire (35_C minimum). All wire larger  
than no. 18 AWG cannot be directly connected to the thermostat  
and will require a junction box and splice at the thermostat.  
!
WARNING  
ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could result in personal  
injury or death.  
Pass the control wires through the hole provided in the corner  
post; then feed wires through the raceway built into the corner  
post to the 24-v barrier located on the left side of the control box.  
(See Fig. 15). The raceway provides the UL required clearance  
between high and low-voltage wiring.  
Unit cabinet must have an uninterrupted, unbroken  
electrical ground to minimize the possibility of personal  
injury if an electrical fault should occur. This ground may  
consist of electrical wire connected to unit ground lug in  
control compartment, or conduit approved for electrical  
ground when installed in accordance with NEC (National  
Electrical Code), ANSI/NFPA (National Fire Protection  
Association), latest edition, and local electrical codes. Do  
not use gas piping as an electrical ground.  
heat anticipator settings  
Set heat anticipator settings at 0.14 amp for first stage and 0.14  
for second stage heating, when available.  
8
Table 1—Physical Data 48HJ  
BASE UNIT 48HJ  
HJE/F/H/K/M/N004 HJD/E/F/G/H/K/L/M/N005 HJD/E/F/G/H/K/L/M/N006 HJD/E/F007  
NOMINAL CAPACITY  
OPERATING WEIGHT (lb)  
Unit  
Humidi-MiZer™ Adaptive Dehumidification System  
EconoMi$er IV  
Roof Curb  
COMPRESSOR  
Quantity  
Oil (oz)  
REFRIGERANT TYPE  
Expansion Device  
Operating Charge (lb-oz)  
Standard Unit  
Unit With Humidi-Mizer Adaptive Dehumidification System  
CONDENSER FAN  
Quantity...Diameter (in.)  
Nominal Cfm  
Motor Hp...Rpm  
Watts Input (Total)  
CONDENSER COIL  
Rows...Fins/in.  
3
4
5
6
530  
15  
50  
540  
23  
50  
560  
25  
50  
635  
29  
50  
115  
115  
115  
115  
Scroll  
R-22  
1
42  
1
53  
1
50  
1
60  
Acutrol™ Metering Device  
5-8  
12-5  
10-2  
18-8  
10-0  
20-5  
12- 8  
23-14  
Propeller  
1...22  
3500  
/ ...825  
180  
1...22  
3500  
/ ...825  
1...22  
4100  
/ ...1100  
1...22  
4100  
/ ...1100  
1
1
1
1
4
4
4
4
180  
320  
320  
Enhanced Copper Tubes, Aluminum Lanced Fins  
1...17  
14.6  
2...17  
16.5  
2...17  
16.5  
2...17  
21.3  
Total Face Area (sq ft)  
EVAPORATOR COIL  
Standard Unit  
Enhanced Copper Tubes, Aluminum Double-Wavy Fins  
Rows...Fins/in.  
2...15  
5.5  
2...15  
5.5  
4...15  
5.5  
4...15  
7.3  
Total Face Area (sq ft)  
Unit with Humidi-Mizer Adaptive Dehumidification System  
Rows...Fins/in.  
Total Face Area (sq ft)  
EVAPORATOR FAN  
Quantity...Size (in.)  
1...17  
3.9  
2...17  
3.9  
2...17  
3.9  
2...17  
5.2  
Centrifugal Type, Belt Drive  
1...10 x 10  
1200  
1.20  
2.40  
1620  
1725  
48  
56  
1...10 x 10  
1600  
1.20  
1...10 x 10  
2000  
1.30/2.40*  
2.90  
1725  
1725  
48/56*  
56  
1035-1460  
1300-1685  
Ball  
2100  
2.4/3.4  
1...10 x 10  
2400  
2.40  
2.90  
1725  
1725  
56  
56  
1119-1585  
1300-1685  
Ball  
2100  
2.4/3.4  
Nominal Cfm  
Maximum Continuous Bhp  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
2.40  
Motor RPM  
1620  
1725  
48  
Motor Frame Size  
Fan Rpm Range  
56  
680-1044  
1075-1455  
Ball  
770-1185  
1075-1455  
Ball  
2100  
1.9/2.0  
Hi-Static  
Motor Bearing Type  
Maximum Fan Rpm  
Motor Pulley Pitch Diameter A/B (in.)  
2100  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
1.9/2.9  
2.8/3.8  
2.8/3.8  
3.4/4.4  
3.4/3.4  
1/  
1
5
5
5
5
7
Nominal Motor Shaft Diameter (in.)  
Fan Pulley Pitch Diameter (in.)  
Belt — Type...Length (in.)  
/
/
/
/
/
/
2
8
2
8
8
8
8
8
5
/
4.5  
4.5  
1...A...36  
1...A...39  
4.0  
4.0  
1...A...36  
1...A...39  
4.0  
4.5  
1....4...40  
1...A...40  
4.0  
4.5  
1...A...38  
1...A...40  
Pulley Center Line Distance (in.)  
10.0-12.4  
10.0-12.4  
14.7-15.5  
14.7-15.5  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Speed Change per Full Turn of  
65  
65  
5
70  
65  
5
75  
60  
6
95  
60  
5
Movable Pulley Flange (rpm)  
Movable Pulley Maximum Full  
Turns from Closed Position  
Factory Setting — Full Turns Open  
6
6
5
5
3
3
3
3
1
1
1
1
3 /  
3 /  
3 /  
3 /  
2
2
2
2
Factory Speed Setting (rpm)  
826  
936  
1248  
1305  
1233  
1233  
1396  
1396  
5
5
5
5
Fan Shaft Diameter at Pulley (in.)  
/
/
/
/
8
8
8
8
LEGEND  
Bhp — Brake Horsepower  
*Single phase/three phase.  
†Indicates automatic reset.  
**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and  
120,000  
Btuh heat input units have 3 burners. 115,000 Btuh heat input units and 150,000  
Btuh Heat input units have 3 burners.  
††An LP kit is available as an accessory. Kit may be used at elevations as high as 2000  
ft. If an LP kit is used with Low NOx units, the Low NOx baffle must be removed and  
the units will no longer be classified as Low NOx units.  
ll Three-phase standard models have heating inputs as shown. Single-phase stan-  
dard models have one-stage heating with heating input values as follows:  
HJD005-006,HJE004 — 72,000 Btuh  
HJE005-006,HJF004 — 115,000 Btuh  
HJF005-006 — 150,000 Btuh  
***California compliant three-phase models.  
†††California SCAQMD compliant low NO models have combustion products that are  
x
controlled to 40 nanograms per joule or less.  
9
TABLE 1 — PHYSICAL DATA 48HJ (cont)  
BASE UNIT 48HJ  
FURNACE SECTION  
Rollout Switch Cutout Temp (F)†  
Burner Orifice Diameter (in. ...drill size)**  
Natural Gas — Std  
HJE/F/H/K/M/N004  
HJD/E/F/G/H/K/L/M/N005 HJD/E/F/G/H/K/L/M/N006  
195 195  
HJD .113...33 HJD .113...33  
HJD/E/F007  
195  
195  
HJE .113...33  
HJF .113...33  
—
HJH .113...33  
HJK .113...33  
—
HJM .102...38  
HJN .102...38  
—
HJE .089...43  
HJF .089...43  
—
HJH .089...43  
HJK .089...43  
—
HJM .082...45  
HJN .082...45  
—
HJD .113...33  
HJE .113...33  
HJF .129...30  
HJE .113...33  
HJF .129...30  
HJG .113...33  
HJH .113...33  
HJK .129...30  
HJL .102...38  
HJM .102...38  
HJN .116...32  
HJD .089...43  
HJE .089...43  
HJF .104...37  
HJG .089...45  
HJH .089...45  
HJK .102...38  
HJL .082...45  
HJM .082...45  
HJN .094...42  
HJE .113...33  
HJF .129...30  
HJG .113...33  
HJH .113...33  
HJK .129...30  
HJL .102...38  
HJM .102...38  
HJN .116...32  
HJD .089...43  
HJE .089...43  
HJF .104...37  
HJG .089...43  
HJH .089...43  
HJK .104...37  
HJL .082...45  
HJM .082...45  
HJN .094...42  
—
—
—
—
—
—
Liquid Propane — Alt††  
HJD .089...43  
HJE .089...43  
HJF .104...37  
—
—
—
—
—
—
Thermostat Heat Anticipator Setting (amps)  
208/230/460/575 v  
First Stage  
Second Stage  
Gas Input (Btuh)  
.14  
.14  
.14  
.14  
.14  
.14  
.14  
.14  
HJE||  
HJD|| 50,000/ 72,000  
HJE|| 82,000/115,000  
HJD|| 50,000/ 72,000  
HJE|| 82,000/115,000  
HJD 50,000/ 72,000  
HJE 82,000/115,000  
HJF 120,000/150,000  
First Stage/Second Stage  
50,000/ 72,000  
HJF||  
82,000/115,000  
—
HJH*** —/ 72,000  
HJK***—/115,000  
—
HJM††† —/ 60,000  
HJN††† —/ 90,000  
—
HJF|| 120,000/150,000  
HJG*** —/ 72,000  
HJH*** —/115,000  
HJK*** —/150,000  
HJL††† —/ 60,000  
HJM††† —/ 90,000  
HJN††† —/120,000  
HJD 82.8  
HJF|| 120,000/150,000  
HJG*** —/ 72,000  
HJH*** —/115,000  
HJK*** —/150,000  
HJL††† —/ 60,000  
HJM†††—/ 90,000  
HJN††† —/120,000  
HJD 82.8  
—
—
—
—
—
—
Efficiency (Steady State) (%)  
HJE 82.8  
HJD 82  
HJF 80  
HJE 81  
HJF 80.4  
HJE 81  
HJF 80.4  
HJE 81  
HJF 80  
—
HJH 82  
HJK 80  
HJG 82  
HJH 81  
HJK 80  
HJL 80.2  
HJM 81  
HJN 80.7  
HJD 25-25  
HJE 35-65  
HJF 50-80  
HJG 25-55  
HJH 35-65  
HJK 50-80  
HJL 20-50  
HJM 30-60  
HJN 40-70  
HJG 82  
HJH 81  
HJK 80  
HJL 80.2  
HJM 81  
HJN 80.7  
HJD 25-55  
HJE 35-65  
HJF 50-80  
HJG 25-55  
HJH 35-65  
HJK 50-80  
HJL 20-50  
HJM 30-60  
HJN 40-70  
—
—
—
—
—
HJM 80.2  
HJN 81  
—
—
—
Temperature Rise Range  
HJE 25-55  
HJF 55-85  
—
HJH 25-55  
HJK 55-85  
—
HJD 25-55  
HJE 35-65  
HJF 50-80  
—
—
—
—
—
—
HJM 20-50  
HJN 30-60  
—
Manifold Pressure (in. wg)  
Natural Gas — Std  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
Liquid Propane — Alt††  
Maximum Static Pressure (in. wg)  
Field Gas Connection Size (in.)  
HIGH-PRESSURE SWITCH (psig)  
Standard Compressor Internal Relief  
Cutout  
1.0  
1.0  
1.0  
1.0  
1
1
1
1
/
/
/
/
2
2
2
2
450 ± 50  
428  
320  
Reset (Auto.)  
LOSS-OF-CHARGE SWITCH/LOW-PRESSURE  
(Liquid LIne) (psig)  
Cutout  
Reset (Auto.)  
FREEZE PROTECTION THERMOSTAT  
7 ± 3  
22 ± 5  
Opens (F)  
Closes (F)  
OUTDOOR-AIR INLET SCREENS  
RETURN-AIR FILTERS  
Quantity...Size (in.)  
30 ± 5  
45 ± 5  
Cleanable. Screen quantity and size varies with option selected.  
Throwaway  
2...16 x 25 x 2  
4...16 x 16 x 2  
LEGEND  
the units will no longer be classified as Low NOx units.  
ll Three-phase standard models have heating inputs as shown. Single-phase stan-  
dard models have one-stage heating with heating input values as follows:  
HJD005-006,HJE004 — 72,000 Btuh  
Bhp — Brake Horsepower  
*Single phase/three phase.  
†Indicates automatic reset.  
HJE005-006,HJF004 — 115,000 Btuh  
**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and  
120,000  
HJF005-006 — 150,000 Btuh  
Btuh heat input units have 3 burners. 115,000 Btuh heat input units and 150,000  
Btuh Heat input units have 3 burners.  
***California compliant three-phase models.  
†††California SCAQMD compliant low NO models have combustion products that are  
x
††An LP kit is available as an accessory. Kit may be used at elevations as high as 2000  
ft. If an LP kit is used with Low NOx units, the Low NOx baffle must be removed and  
controlled to 40 nanograms per joule or less.  
10  
Table 2—PHYSICAL DATA 48HE  
BASE UNIT 48HE  
HD/E/F003  
HE/F/H/K/M/N004  
H/E/F/G/H/K/L/M/N005  
HD/E/F/G/H/K/L/M/N006  
NOMINAL CAPACITY  
OPERATING WEIGHT (lb)  
Unit  
Humidi-MiZer™ Adaptive Dehumidification System  
EconoMi$er IV  
Roof Curb  
COMPRESSOR  
Quantity  
Oil (oz)  
REFRIGERANT TYPE  
Expansion Device  
Operating Charge (lb-oz)  
Standard Unit  
Unit With Humidi-Mizer Adaptive Dehumidification System  
CONDENSER FAN  
Quantity...Diameter (in.)  
Nominal Cfm  
Motor Hp...Rpm  
Watts Input (Total)  
CONDENSER COIL  
Rows...Fins/in.  
2
3
4
5
530  
13  
50  
540  
15  
50  
560  
23  
50  
115  
635  
25  
50  
115  
115  
115  
Scroll  
1
25  
1
42  
1
1
53  
56  
R-22  
Acutrol™ Metering Device  
5 --- 3  
10 --- 2  
7 --- 11  
14 --- 0  
8 --- 8  
14---13  
Propeller  
1...22  
12---11  
21 --- 0  
1...22  
3000  
/8...825  
1...22  
3500  
/8...825  
1...22  
4100  
/ ...1100  
4
320  
3500  
/8...825  
180  
1
1
1
1
180  
180  
Enhanced Copper Tubes, Aluminum Lanced Fins  
1...17  
14.6  
1...17  
14.6  
2...17  
16.5  
2...17  
16.5  
Total Face Area (sq ft)  
EVAPORATOR COIL  
Standard Unit  
Enhanced Copper Tubes, Aluminum Double-Wavy Fins  
Rows...Fins/in.  
2...15  
4.2  
2...15  
5.5  
2...15  
5.5  
4...15  
5.5  
Total Face Area (sq ft)  
Unit with Humidi-Mizer Adaptive Dehumidification System  
Rows...Fins/in.  
Total Face Area (sq ft)  
EVAPORATOR FAN  
Quantity...Size (in.)  
Nominal Cfm  
1...17  
3.5  
1...17  
3.9  
2...17  
3.9  
2...17  
3.9  
Centrifugal Type, Belt Drive  
1...10 x 10  
800  
0.58  
1...10 x 10  
1200  
1.20  
2.40  
48  
56  
1620  
680-1044  
1075-1455  
Ball  
1...10 x 10  
1600  
1.20  
2.40  
48  
56  
1620  
770-1185  
1075-1455  
Ball  
1...10 x 10  
2000  
1.30/2.40*  
2.90  
48/56*  
56  
1725  
1035-1460  
1300-1685  
Ball  
2100  
2.4/3.4  
Maximum Continuous Bhp  
Std  
Hi-Static  
Std  
Motor Frame Size  
48  
Hi-Static  
Motor Rpm  
Fan Rpm Range  
1620  
400-1000  
Std  
Hi-Static  
Motor Bearing Type  
Maximum Fan Rpm  
Motor Pulley Pitch Diameter A/B (in.)  
Ball  
1620  
2.4/3.2  
2100  
2100  
1.9/2.0  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
1.9/2.9  
2.8/3.8  
2.8/3.8  
3.4/4.4  
5
7
1/  
1
5
5
5
Nominal Motor Shaft Diameter (in.)  
Fan Pulley Pitch Diameter (in.)  
Belt — Type...Length (in.)  
/
/
/
/
/
/
8
8
2
8
2
8
8
8
5
/
4.0  
4.5  
1...A...36  
4.5  
4.5  
1...A...36  
1...A...39  
4.0  
4.0  
1...A...36  
1...A...39  
4.0  
4.5  
1....4...40  
1...A...40  
Pulley Center Line Distance (in.)  
10.0---12.4  
60  
10.0-12.4  
10.0-12.4  
14.7-15.5  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Std  
Hi-Static  
Speed Change per Full Turn of  
65  
65  
5
70  
65  
5
75  
60  
6
Movable Pulley Flange (rpm)  
Movable Pulley Maximum Full  
Turns from Closed Position  
Factory Setting — Full Turns Open  
5
3
6
6
5
3
3
3
1
1
1
3 /  
3 /  
3 /  
2
2
2
Factory Speed Setting (rpm)  
756  
5
826  
936  
1248  
1233  
1233  
1396  
5
5
5
Fan Shaft Diameter at Pulley (in.)  
/
/
/
/
8
8
8
8
11  
TABLE 2 — PHYSICAL DATA 48HE (cont)  
BASE UNIT 48HE  
HD/E/F003  
HE/F/H/K/M/N004  
HD/E/F/G/H/K/L/M/N005  
HD/E/F/G/H/K/L/M/N006  
FURNACE SECTION  
Rollout Switch Cutout Temp (F)†  
Burner Orifice Diameter (in. ...drill size)**  
Natural Gas — Std*  
195  
195  
195  
195  
HJE .113...33  
HJF .113...33  
—
HJH .113...33  
HJK .113...33  
—
HJM .102...38  
HJN .102...38  
—
HJE .089...43  
HJF .089...43  
—
HJD .113...33  
HJE .113...33  
HJF .129...30  
HJG .113...33  
HJH .113...33  
HJK .129...30  
HJL .102...38  
HJM .102...38  
HJN .116...32  
HJD .089...43  
HJE .089...43  
HJF .104...37  
HJG .089...43  
HJH .089...43  
HJK .102...37  
HJD .113...33  
HJE .113...33  
HJF .129...30  
HJG .113...33  
HJH .113...33  
HJK .129...30  
HJL .102...38  
HJM .102...38  
HJN .116...32  
HJD .089...43  
HJE .089...43  
HJF .104...37  
HJG .089...43  
HJH .089...43  
HJK .104...37  
HEE .089...43  
—
—
—
HEM .089...43  
—
—
Liquid Propane — Alt††  
HEE .073...49  
HJH .089...43  
HJK .089...43  
—
—
—
—
—
—
—
—
Thermostat Heat Anticipator Setting (amps)  
208/230/460/575 v  
First Stage  
Second Stage  
Gas Input (Btuh)  
.14  
.14  
.14  
.14  
.14  
.14  
.14  
.14  
HEE 50,000/---  
HEE||  
HED|| 50,000/ 72,000  
HEE|| 82,000/115,000  
HED|| 50,000/ 72,000  
HEE|| 82,000/115,000  
First Stage/Second Stage  
50,000/ 72,000  
HEF||  
82,000/115,000  
—
HEH*** —/ 72,000  
HJK***—/115,000  
—
HEM††† —/ 60,000  
HEN††† —/ 90,000  
—
HEF|| 120,000/150,000  
HEG*** —/ 72,000  
HEH*** —/115,000  
HEK*** —/150,000  
HEL††† —/ 60,000  
HEM††† —/ 90,000  
HEN††† —/120,000  
HED 82.8  
HEF|| 120,000/150,000  
HEG*** —/ 72,000  
HEH*** —/115,000  
HEK*** —/150,000  
HEL††† —/ 60,000  
HEM†††—/ 90,000  
HEN††† —/120,000  
HED 82.8  
—
—
—
—
—
—
Efficiency (Steady State) (%)  
HEE 81  
HEE 82.8  
HEF 80  
HEE 81  
HEE 81  
—
HEF 80.4  
HEG 82  
HEF 80.4  
HEG 82  
HEH 82  
—
—
—
HEK 80  
HEH 81  
HEK 80  
HEL 80.2  
HEM 81  
HEN 80.7  
HED 25-25  
HEE 35-65  
HEF 50-80  
HEH 81  
HEK 80  
HEL 80.2  
HEM 81  
HEN 80.7  
HED 25-55  
HEE 35-65  
HEF 50-80  
—
HEM 80.2  
HEN 81  
—
HEM 81  
—
—
Temperature Rise Range  
HEE 25-55  
HEF 55-85  
—
HEE 25-65  
HEH 25-55  
HEK 55-85  
—
HEM 20-50  
HEN 30-60  
HEG 25-55  
HEH 35-65  
HEK 50-80  
HEL 20-50  
HEM 30-60  
HEN 40-70  
HEG 25-55  
HEH 35-65  
HEK 50-80  
HEL 20-50  
HEM 30-60  
HEN 40-70  
—
—
—
—
—
—
—
Manifold Pressure (in. wg)  
Natural Gas — Std  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
3.5  
Liquid Propane — Alt††  
Maximum Static Pressure (in. wg)  
Field Gas Connection Size (in.)  
HIGH-PRESSURE SWITCH (psig)  
Standard Compressor Internal Relief  
Cutout  
1.0  
1.0  
1.0  
1.0  
1
1
1
1
/
/
/
/
2
2
2
2
450 ± 50  
428  
320  
Reset (Auto.)  
LOSS-OF-CHARGE SWITCH (Liquid LIne) (psig)  
Cutout  
Reset (Auto.)  
FREEZE PROTECTION THERMOSTAT  
7 ± 3  
22 ± 5  
Opens (F)  
Closes (F)  
OUTDOOR-AIR INLET SCREENS  
RETURN-AIR FILTERS  
Quantity...Size (in.)  
30 ± 5  
45 ± 5  
Cleanable. Screen quantity and size varies with option selected.  
Throwaway  
2...16 x 25 x 2  
LEGEND  
Bhp — Brake Horsepower  
Low NOx requirement only applies to natural gas units.  
Three-phase standard models have heating inputs as shown. Single-phase standard  
models have one-stage heating with heating input values as shown in heatin capac-  
ity tables.  
*Stainless steel models use same orifices as equivalent standard unit.  
†Indicates automatic reset.  
***These units do NOT meet the California low NOx requirements.  
**≤72,000 Btuh heat input units have 2 burners. 90,000 and  
120,000 Btuh heat  
†††California SCAQMD compliant low NO models have combustion products that are  
x
input units have 3 burners. 115,000 Btuh heat input units and 150,000 Btuh Heat  
input units have 3 burners.  
controlled to 40 nanograms per joule or less.  
††An LP kit is available as an accessory. An LP conversion kit should not be used on a  
low NOx unit because then it can no longer be classified as a Low NOx unit. The  
12  
48HE004,005  
48HE004,005  
48HE003-006  
LEGEND  
C
—
—
—
—
—
Contactor  
COMP  
EQUIP  
GND  
IFC  
Compressor  
Equipment  
Ground  
Indoor (Evaporator)  
Fan Contactor  
National Electrical Code  
Terminal Block  
NEC  
TB  
—
—
48HE006  
C06124  
Fig. 12 --- Power Wiring Connections  
LOW VOLTAGE  
CONNECTIONS  
INTEGRATED GAS UNIT  
CONTROLLER (IGC)  
R
G
COOL STAGE 1  
Y1/W2  
FAN  
G
Y1  
HEAT STAGE 1  
COOL STAGE 2  
HEAT STAGE 2  
24 VAC HOT  
W/W1  
Y/Y2  
O/W2  
R
WIRE  
Y2  
CONNECTIONS  
TO  
W1  
W2  
C
LOW-VOLTAGE  
SECTION  
24 VAC COM  
N/A  
C
IPD/X  
OUTDOOR AIR  
SENSOR  
S1  
S2  
THERMOSTAT DIPSWITCH SETTINGS  
ON  
OFF  
D
A
B
C
LEGEND  
Field Wiring  
NOTE: Underlined letter indicates active thermostat output when  
configured for A/C operation.  
C06008  
Fig. 13 --- Low--Voltage connections With or  
C06125  
Without Economizer or Two--Position Damper  
Fig. 15 --- Field Control Wiring  
THERMOSTAT CONTROL  
CONNECTION  
BOARD  
CONTROL  
CONNECTION  
BOARD  
24 VAC  
RMTOCC  
CMPSAFE  
FSD  
R
G
R
R
Y1  
Y2  
W1  
W2  
G
Y1  
Y2  
W1  
W2  
G
Y2  
W1  
SFS  
NOT USED  
C
X
C
X
C
X
C
C06009  
Fig. 14 --- Low--Voltage Connections  
(Units with PremierLinkt Controls)  
13  
14  
15  
16  
Step 8 —Adjust Factory-Installed Options  
cobra™ energy recovery units  
3. Use a wire nut to connect humidistat cable into low-  
voltage wiring as shown in Fig. 18.  
To install Thermidistat device:  
Please refer to the supplement provided for information on  
installing and operating the factory optional COBRA Energy  
Recovery Units. These units are equipped with a factory--installed  
energy recovery unit and have different installation and operation  
procedures than the standard unit.  
1. Route Thermidistat cable through hole provided in unit  
control box.  
2. Some models may be equipped with a raceway built into  
the corner post located on the left side of control box (See  
Fig. 15). This raceway provides the required clearance  
between high--voltage and low voltage wiring. For models  
without a raceway, ensure to provide the NEC required  
clearance between the high--voltage and low--voltage  
wiring.  
3. A field-supplied relay must be installed between the  
Thermidistat and the Humidi-Mizer circuit (recommended  
relay: HN612KK324). (See Fig. 19.) The relay coil is  
connected between the DEHUM output and C (common)  
of the unit. The relay controls the Humidi-MiZer solenoid  
valve and must be wired between the Humidi-MiZer fuse  
and the low-pressure switch. Refer to the installation  
instructions included with the Carrier Light Commercial  
Thermidistat device for more information.  
HUMIDI--MIZER™ ADAPTIVE DEHUMIDIFICATION  
SYSTEM  
Humidi--MiZer system operation can be controlled by field  
installation of a Carrier--approved humidistat. (See Fig. 16.)  
NOTE: A light commercial Thermidistat™ device (Fig. 17) can  
be used instead of the humidistat if desired. The Thermidistat  
device includes a thermostat and a humidistat. The humidistat is  
normally used in applications where a temperature sensor is  
already provided (units with PremierLink™ control).  
manual outdoor damper  
The outdoor--air hood and screen are attached to the basepan at  
the bottom of the unit for shipping.  
Assembly:  
1. Determine quantity of ventilation required for building.  
Record amount for use in Step 8.  
2. Remove and save outdoor air opening panel and screws.  
(See Fig. 20.)  
% RELATIVE HUMIDITY  
3. Remove evaporator coil access panel. Separate hood and  
screen from basepan by removing the 4 screws securing  
them. Save all screws.  
C06126  
Fig. 16 --- Accessory Field--Installed Humidistat  
4. Replace evaporator coil access panel.  
5. Place hood on front of outdoor air opening panel. See  
Fig. 21 for hood details. Secure top of hood with the  
4 screws removed in Step 3. (See Fig. 22.)  
6. Remove and save 6 screws (3 on each side) from sides of  
the manual outdoor-air damper.  
7. Align screw holes on hood with screw holes on side of  
manual outdoor-air damper. (See Fig. 21 and 22.) Secure  
hood with 6 screws from Step 6.  
8. Adjust minimum position setting of the damper blade by  
adjusting the manual outdoor-air adjustment screws on the  
front of the damper blade. (See Fig. 20.) Slide blade  
vertically until it is in the appropriate position determined  
by Fig. 23. Tighten screws.  
C06127  
9. Remove and save screws currently on sides of hood.  
Insert screen. Secure screen to hood using the screws. (See  
Fig. 22.)  
Fig. 17 --- Light Commercial Thermidistat Device  
To install the humidistat:  
convenience outlet  
1. Route humidistat cable through hole provided in unit  
control box.  
An optional convenience outlet provides power for rooftop use.  
For maintenance personnel safety, the convenience outlet power  
is off when the unit disconnect is off. Adjacent unit outlets may  
be used for service tools.  
2. Some models may be equipped with a raceway built into  
the corner post located on the left side of control box (See  
Fig. 15). This raceway provides the required clearance  
between high--voltage and low voltage wiring. For models  
without a raceway, ensure to provide the NEC required  
clearance between the high--voltage and low--voltage  
wiring.  
novar controls  
Optional Novar controls (ETM 3051) are available for  
replacement or new construction jobs.  
17  
LEGEND  
CB  
—
—
—
—
—
—
—
—
Circuit Breaker  
Terminal (Unmarked)  
Splice  
CR  
Cooling Relay  
DHR  
DSV  
HR  
LPS  
LSV  
LTLO  
Dehumidify Relay  
Discharge Solenoid Valve  
Heater Relay  
Low Pressure Switch  
Liquid Solenoid Valve  
Low Temperature Lockout  
Factory Wiring  
Field Control Wiring  
Field Power Wiring  
Field Splice  
C06128  
Fig. 18 --- Typical Humidi--MiZert Adaptive Dehumidification System  
Humidistat Wiring (208/230--V Unit Shown)  
LCT  
ROOF TOP UNIT  
R
C
R
C
Y1  
Y2  
G
Y1  
Y2  
G
W1  
W2  
W1  
W2  
DEHUM  
OC  
CB  
R1  
R1  
3.2 AMPS  
PINK  
PINK  
RED  
24V  
TSTATWIRES  
LEGEND  
LTLO  
PINK  
FROM  
HUMIDI-MIZER SYSTEM  
LLSV  
CB  
— Circuit Breaker  
LCT — Light Commercial Thermidistat™ Device  
LLSV — Liquid Line Solenoid Valve  
LTLO — Low Temperature Lockout  
HUMIDI-MIZER SYSTEM  
C06129  
Fig. 19 --- Typical Rooftop Unit with Humidi--Mizer  
Adaptive Dehumidification System with Thermidistat Device  
OUTDOOR  
AIR OPENING  
PANEL  
3 SCREWS  
(SIDE)  
C06130  
Fig. 20 --- Damper Panel with Manual Outdoor--Air  
Damper Installed  
C06013  
Fig. 21 --- Outdoor--Air Hood Details  
18  
Install the Supply Air Temperature (SAT) Sensor  
When the unit is supplied with a factory--mounted PremierLink  
control,  
the  
supply--air  
temperature  
(SAT)  
sensor  
(33ZCSENSAT) is factory--supplied and wired. The wiring is  
routed from the PremierLink control over the control box,  
through a grommet, into the fan section, down along the back  
side of the fan, and along the fan deck over to the supply--air  
opening.  
The SAT probe is wire--tied to the supply--air opening (on the  
horizontal opening end) in its shipping position. Remove the  
sensor for installation. Re--position the sensor in the flange of the  
supply--air opening or in the supply air duct (as required by local  
codes). Drill or punch a 1/2--in. hole in the flange or duct. Use  
two field--supplied, self--drilling screws to secure the sensor probe  
in a horizontal orientation.  
C06131  
Fig. 22 --- Outdoor--Air Damper With  
NOTE: The sensor must be mounted in the discharge airstream  
downstream of the cooling coil and any heating devices. Be sure  
the probe tip does not come in contact with any of the unit or heat  
surfaces.  
Hood Attached  
Outdoor Air Temperature Sensor (OAT)  
When the unit is supplied with a factory-mounted PremierLink  
control and economizer, the outdoor-air temperature sensor  
(OAT) is factory-supplied and wired.  
Install the Indoor Air Quality (CO ) Sensor  
2
Mount the optional indoor air quality (CO ) sensor according to  
2
manufacturer specifications.  
A separate field-supplied transformer must be used to power the  
CO sensor.  
2
Wire the CO sensor to the COM and IAQI terminals of J5 on the  
2
PremierLink controller. Refer to the PremierLink Installation,  
Start-up, and Configuration Instructions for detailed wiring and  
configuration information.  
Enthalpy Sensors and Control  
The enthalpy control (HH57AC077) is supplied as  
a
field-installed accessory to be used with the EconoMi$er2  
damper control option. The outdoor air enthalpy sensor is part of  
the enthalpy control. The separate field-installed accessory return  
air enthalpy sensor (HH57AC078) is required for differential  
enthalpy control.  
C06132  
Fig. 23 --- Outdoor--Air Damper Position Setting  
NOTE: The enthalpy control must be set to the “D” setting for  
differential enthalpy control to work properly.  
premierlink™ control  
The PremierLink controller is compatible with Carrier Comfort  
NetworkR (CCN) devices. This control is designed to allow  
users the access and ability to change factory--defined settings,  
thus expanding the function of the standard unit control board.  
Carrier’s diagnostic standard tier display tools such as  
Navigatort or Scrolling Marquee can be used with the  
PremierLink controller.  
The enthalpy control receives the indoor and return  
enthalpy from the outdoor and return air enthalpy sensors and  
provides a dry contact switch input to the PremierLink controller.  
Locate the controller in place of an existing economizer controller  
or near the actuator. The mounting plate may not be needed if  
existing bracket is used.  
A closed contact indicates that outside air is preferred to the  
return air. An open contact indicates that the economizer should  
remain at minimum position.  
The PremierLink controller (see Fig. 24 and 25) requires the use  
of a Carrier electronic thermostat or a CCN connection for time  
broadcast to initiate its internal timeclock. This is necessary for  
broadcast of time of day functions (occupied/unoccupied). No  
sensors are supplied with the field--mounted PremierLink control.  
The factory--installed PremierLink control includes only the  
supply--air temperature (SAT) sensor and the outdoor air  
temperature (OAT) sensor as standard. An indoor air quality  
(CO2) sensor can be added as an option. Refer to Table 5 for  
sensor usage. Refer to Fig. 26 for PremierLink controller wiring.  
The PremierLink control may be mounted in the control panel or  
an area below the control panel.  
Outdoor Air Enthalphy Sensor/Enthalpy Controller  
(HH57AC077)  
To wire the outdoor air enthalpy sensor, perform the following (See  
Fig. 27 and 28):  
NOTE: The outdoor air sensor can be removed from the back of  
the enthalpy controller and mounted remotely.  
NOTE: PremierLink controller versions 1.3 and later are shipped  
in Sensor mode. If used with a thermostat, the PremierLink  
controller must be configured to Thermostat mode.  
19  
Table 5—PremierLink™ Sensor Usage  
OUTDOOR AIR  
TEMPERATURE SENSOR  
RETURN AIR  
TEMPERATURE SENSOR  
OUTDOOR AIR  
ENTHALPY SENSOR  
RETURN AIR  
ENTHALPY SENSOR  
APPLICATION  
Differential Dry Bulb  
Temperature with  
PremierLink*  
R e q u ir e d ---  
33ZCT55SPT  
or Equivalent  
In c lu d e d ---  
—
—
—
(PremierLink  
CRTEMPSN001A00  
requires 4-20 mA  
Actuator)  
Single Enthalpy with  
PremierLink*  
R e q u ir e d ---  
HH57AC077  
or Equivalent  
In c lu d e d ---  
Not Used  
(PremierLink  
—
—
requires 4-20 mA  
Actuator)  
Differential Enthalpy  
with PremierLink*  
(PremierLink  
requires 4-20 mA  
Actuator)  
R e q u ir e d ---  
HH57AC077  
or Equivalent  
R e q u i r e d ---  
HH57AC078  
or Equivalent  
In c lu d e d ---  
Not Used  
*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT and Outdoor Air Temperature sensor CRTEMPSN001A00  
— Included with factory-installed PremierLink control; field-supplied and field-installed with field-installed PremierLink control.  
NOTES:  
1. CO Sensors (Optional):  
2
33ZCSENCO2 — Room sensor (adjustable). Aspirator box is required for duct mounting of the sensor.  
33ZCASPCO2 — Aspirator box used for duct-mounted CO room sensor.  
2
33ZCT55CO2 — Space temperature and CO room sensor with override.  
2
33ZCT56CO2 — Space temperature and CO room sensor with override and set point.  
2
2. All units include the following Standard Sensors:  
Outdoor-Air Sensor — 50HJ540569 — Opens at 67_F, closes at 52_F, not adjustable.  
Mixed-Air Sensor — HH97AZ001 — (PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT  
and Outdoor Air Temperature Sensor CRTEMPSN001A00)  
Compressor Lockout Sensor — 50HJ540570 — Opens at 35_F, cl oses at 50_F.  
C06016  
Fig. 24 --- PremierLink Controller  
20  
PREMIERLINK  
CONTROL  
HINGED  
DOOR  
PANEL  
C06017  
Fig. 25 --- PremierLinktController (Installed)  
BLK  
VIO  
RED  
HK50AA039  
TB - 2  
SAT  
BLU  
PNK  
PNK  
VIO  
BRN  
7
6
7
6
BLK  
BLU  
1
BRN  
ORN  
PNK  
VIO  
PremierLink  
2
3
BRN  
BLK  
OAT  
BRN  
BRN  
RED  
BLU  
11  
10  
8
Space Temp./ Set  
Point Adjustment  
11  
10  
8
BRN  
RED  
4
5
6
YEL  
BLU  
GRN  
YEL  
BLU  
2
Indoor Air  
Quality Sensor  
2
BRN  
BLU  
ORN  
WHT  
3
4
1
3
4
1
7
8
PNK  
GRA  
GRA  
BLK  
Outdoor Air  
Quality Sensor  
J7  
PP/MP  
J9  
0-20 mA  
J8  
Relays  
J2  
COMMS  
J1  
PWR  
RED  
BLU  
Power Exhaust/Energy Recycler  
GRA  
ORN  
PNK  
5
5
TB - 3  
PNK  
PNK  
WHT GRA  
ORN ORN  
BRN  
YEL  
ORN  
RED  
9
RMTOCC  
9
GRN  
YEL  
1
2
3
GRA  
BLK  
TB - 1  
RED  
WHT  
12  
12  
CMPSAFE  
FSD  
1
R
RED  
GRA  
BLU  
2
3
Y1  
TR1  
TR  
WHT  
SFS  
4
5
6
Y2  
ORN  
+
3
SR  
2
PNK  
RED  
4
5
6
W1  
ORN  
PNK  
GRAY  
GRAY  
W2  
G
OUTDOOR AIR  
ENTHALPY SENSOR  
CCN  
7
8
WHT  
BLK  
WHT  
Comm.  
BLK  
7
8
C
Economi$er2  
4 - 20mA  
RED  
BRN  
X
+
S
LEGEND  
COMMS — Communications  
RTU Terminal  
Board  
RETURN AIR  
ENTHALPY  
SENSOR  
OAT  
PWR  
RTU  
SAT  
TB  
—
—
—
—
—
Outdoor Air Temperature Sensor  
Power  
RED  
BRN  
Rooftop Unit  
Supply Air Temperature Sensor  
Terminal Block  
C06018  
Fig. 26 --- Typical PremierLink Control Wiring  
21  
1. Use a 4-conductor, 18 or 20 AWG cable to connect the  
enthalpy control to the PremierLink™ controller and  
power transformer.  
HH57AC077  
ENTHALPY  
CONTROL AND  
OUTDOOR AIR  
ENTHALPY SENSOR  
BRACKET  
2. Connect the following 4 wires from the wire harness  
located in rooftop unit to the enthalpy controller:  
a. Connect the BRN wire to the 24 vac terminal (TR1) on  
enthalpy control and to pin 1 on 12-pin harness.  
b. Connect the RED wire to the 24 vac GND terminal (TR)  
on enthalpy sensor and to pin 4 on 12-pin harness.  
HH57AC078 ENTHALPY  
SENSOR (USED WITH  
ENTHALPY CONTROL  
FOR DIFFERENTIAL  
c. Connect the GRAY/ORN wire to J4-2 on PremierLink  
controller and to terminal (3) on enthalpy sensor.  
C7400A1004  
ENTHALPY OPERATION)  
+
d. Connect the GRAY/RED wire to J4-1 on PremierLink  
controller and to terminal (2) on enthalpy sensor.  
NOTE: If installing in a Carrier rooftop, use the two gray wires  
provided from the control section to the economizer to connect  
PremierLink controller to terminals 2 and 3 on enthalpy sensor.  
MOUNTING PLATE  
Return Air Enthalphy Sensor  
Mount the return-air enthalpy sensor (HH57AC078) in the  
return-air duct. The return air sensor is wired to the enthalpy  
controller (HH57AC077). The outdoor enthalpy changeover set  
point is set at the controller.  
ENTHALPY CONTROLLER  
(OUTDOOR  
AIR  
ENTHALPY  
SENSOR)  
S
+
RED  
BRN  
C06020  
B
Fig. 28 --- Differential Enthalpy Control,  
Sensor and Mounting Plate (33AMKITENT006)  
TR  
SO  
TR1  
BLK  
RED  
C
D
A
+
S
+
(RETURN AIR  
ENTHALPY  
SENSOR)  
+
3
1
SR  
2
ECONOMI$ER IV  
CONTROLLER  
GRAY/ORN  
GRAY/RED  
OUTSIDE AIR  
WIRING  
WIRE HARNESS  
IN UNIT  
TEMPERATURE SENSOR  
HARNESS  
LED  
LOW AMBIENT  
SENSOR  
ACTUATOR  
NOTES:  
1. Remove factory-installed jumper across SR and + before connecting  
wires from return air sensor.  
2. Switches shown in high outdoor air enthalpy state. Terminals 2 and 3  
close on low outdoor air enthalpy relative to indoor air enthalpy.  
3. Remove sensor mounted on back of control and locate in outside air-  
stream.  
C06019  
Fig. 27 --- Outdoor and Return Air Sensor Wiring  
Connections for Differential Enthalpy Control  
C06021  
Fig. 29 --- EconoMi$er IV Component Locations  
To wire the return air enthalpy sensor, perform the following (See  
Fig. 27):  
OUTDOOR  
AIR HOOD  
1. Use a 2--conductor, 18 or 20 AWG, twisted pair cable to  
connect the return air enthalpy sensor to the enthalpy  
controller.  
2. At the enthalpy control remove the factory-installed  
resistor from the (SR) and (+) terminals.  
3. Connect the field-supplied RED wire to (+) spade  
connector on the return air enthalpy sensor and the (SR+)  
terminal on the enthalpy controller. Connect the BLK wire  
to (S) spade connector on the return air enthalpy sensor  
and the (SR) terminal on the enthalpy controller.  
ECONOMI$ER2  
PLUG  
HOOD  
SHIPPING  
BRACKET  
GEAR DRIVEN  
DAMPER  
BAROMETRIC  
RELIEF  
DAMPER  
C06022  
Fig. 30 --- EconoMi$er2 Component Locations  
optional economi$er IV and economi$er2  
See Fig. 29 for EconoMi$er IV component locations. See Fig. 30 for  
EconoMi$er2 component locations.  
22  
NOTE: These instructions are for installing the optional  
EconoMi$er IV and EconoMi$er2 only. Refer to the accessory  
EconoMi$er IV or EconoMi$er2 installation instructions when  
field installing an EconoMi$er IV or EconoMi$er2 accessory.  
1. To remove the existing unit filter access panel, raise the  
panel and swing the bottom outward. The panel is now  
disengaged from the track and can be removed. (See  
Fig. 31.)  
HOOD BOX  
BRACKET  
2. The box with the economizer hood components is shipped  
in the compartment behind the economizer. The  
EconoMi$er IV controller is mounted on top of the  
EconoMi$er IV in the position shown in Fig. 26. The  
optional EconoMi$er2 with 4 to 20 mA actuator signal  
control does not include the EconoMi$er IV controller. To  
remove the component box from its shipping position,  
remove the screw holding the hood box bracket to the top  
of the economizer. Slide the hood box out of the unit. (See  
Fig. 32.)  
C06024  
Fig. 32 --- Hood Box Removal  
IMPORTANT: If the power exhaust accessory is to be installed  
on the unit, the hood shipped with the unit will not be used and  
must be discarded. Save the aluminum filter for use in the power  
exhaust hood assembly.  
3. The indoor coil access panel will be used as the top of the  
hood. Remove the screws along the sides and bottom of  
the indoor coil access panel. (See Fig. 33.)  
SIDE  
PANEL  
4. Swing out indoor coil access panel and insert the hood  
sides under the panel (hood top). Use the screws provided  
to attach the hood sides to the hood top. Use screws  
provided to attach the hood sides to the unit. (See Fig. 34.)  
5. Remove the shipping tape holding the economizer  
barometric relief damper in place.  
6. Insert the hood divider between the hood sides. (See  
Fig. 34 and 35.) Secure hood divider with 2 screws on  
each hood side. The hood divider is also used as the  
bottom filter rack for the aluminum filter.  
TOP  
SIDE  
PANEL  
CAULK  
HERE  
INDOOR  
COIL  
ACCESS  
PANEL  
INDOOR  
COIL  
ACCESS  
PANEL  
7. Open the filter clips which are located underneath the  
hood top. Insert the aluminum filter into the bottom filter  
rack (hood divider). Push the filter into position past the  
open filter clips. Close the filter clips to lock the filter into  
place. (See Fig. 35.)  
C06025  
Fig. 33 --- Indoor Coil Access Panel Relocation  
8. Caulk the ends of the joint between the unit top panel and  
the hood top. (See Fig. 33.)  
TOP  
PANEL  
9. Replace the filter access panel.  
INDOOR COIL  
ACCESS PANEL  
10. Install all EconoMi$er IV accessories. EconoMi$er IV  
wiring is shown in Fig. 36. EconoMi$er2 wiring is shown  
in Fig. 37.  
Barometric flow capacity is shown in Fig. 38. Outdoor air  
leakage is shown in Fig. 39. Return air pressure drop is shown in  
Fig. 40.  
LEFT  
HOOD  
SIDE  
SCREW  
B
19 1/16”  
FILTER ACCESS PANEL  
33 3/8”  
HOOD DIVIDER  
C06026  
Fig. 34 --- Outdoor--Air Hood Construction  
ECONOMI$ER IV STANDARD SENSORS  
Outdoor Air Temperature (OAT) Sensor  
COMPRESSOR  
ACCESS PANEL  
The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA  
device used to measure the outdoor-air temperature. The outdoor-air  
temperature is used to determine when the EconoMi$er IV can be  
used for free cooling. The sensor is factory-installed on the  
EconoMi$er IV in the outdoor airstream. (See Fig. 29.) The  
operating range of temperature measurement is 40_ to 100_F.  
OUTDOOR-AIR OPENING AND  
INDOOR COIL ACCESS PANEL  
C06023  
Fig. 31 --- Typical Access Panel Locations  
23  
Supply Air Temperature (SAT) Sensor  
ECONOMI$ER IV CONTROL MODES  
The supply air temperature sensor is a 3 K thermistor located at  
the inlet of the indoor fan. (See Fig. 41.) This sensor is factory  
installed. The operating range of temperature measurement is 0°  
to 158_F. See Table 6 for sensor temperature/resistance values.  
IMPORTANT: The optional EconoMi$er2 does not include a  
controller. The EconoMi$er2 is operated by a 4 to 20 mA signal  
from an existing field-supplied controller (such as PremierLink™  
control). See Fig. 37 for wiring information.  
Determine the EconoMi$er IV control mode before set up of the  
control. Some modes of operation may require different  
sensors. Refer to Table 7. The EconoMi$er IV is supplied from  
the factory with a supply--air temperature sensor and an outdoor--  
air temperature sensor. This allows for operation of the  
EconoMi$er IV with outdoor air dry bulb changeover control.  
Additional accessories can be added to allow for different types of  
changeover control and operation of the EconoMi$er IV and unit.  
Table 6—Supply Air Sensor Temperature/  
Resistance Values  
TEMPERATURE (F)  
RESISTANCE (ohms)  
–58  
–40  
–22  
–4  
200,250  
100,680  
53,010  
29,091  
16,590  
9,795  
5,970  
3,747  
3,000  
2,416  
1,597  
1,080  
746  
525  
376  
321  
274  
203  
153  
116  
102  
14  
Table 7—Economi$er iv sensor usage  
32  
50  
ECONOMI$ER IV WITH OUTDOOR AIR  
68  
DRY BULB SENSOR  
Accessories Required  
APPLICATION  
77  
86  
None. The outdoor air dry bulb sensor  
Outdoor Air  
Dry Bulb  
104  
122  
140  
158  
176  
185  
194  
212  
230  
248  
257  
266  
284  
302  
is factory installed.  
Differential  
Dry Bulb  
CRTEMPSN002A00*  
Single Enthalpy  
HH57AC078  
HH57AC078  
Differential  
Enthalpy  
and  
CRENTDIF004A00*  
CO for DCV  
2
Control using a  
Wall-Mounted  
33ZCSENCO2  
CO Sensor  
2
CO for DCV  
2
33ZCSENCO2†  
O
Control using a  
Duct-Mounted  
89  
70  
55  
and  
CRCBDIOX005A00††  
R
33ZCASPCO2**  
CO Sensor  
2
*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many  
different base units. As such, these kits may contain parts that will not be  
needed for installation.  
17 1/4”  
† 33ZCSENCO2 is an accessory CO sensor.  
2
** 33ZCASPCO2 is an accessory aspirator box required for duct-mounted  
applications.  
†† CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2  
and 33ZCASPCO2 accessories.  
Outdoor Dry Bulb Changeover  
The standard controller is shipped from the factory configured for  
outdoor dry bulb changeover control. The outdoor--air and  
supply--air temperature sensors are included as standard. For this  
control mode, the outdoor temperature is compared to an  
adjustable set point selected on the control. If the outdoor-air  
temperature is above the set point, the EconoMi$er IV will adjust  
the outdoor-air dampers to minimum position. If the outdoor air  
temperature is below the set point, the position of the outdoor air  
dampers will be controlled to provide free cooling using outdoor  
air. When in this mode, the LED next to the free cooling set point  
potentiometer will be on. The changeover temperature set point is  
controlled by the free cooling set point potentiometer located on  
the control. (See Fig. 42.) The scale on the potentiometer is A, B,  
C, and D. See Fig. 43 for the corresponding temperature  
changeover values.  
DIVIDER  
OUTSIDE  
AIR  
HOOD  
CLEANABLE  
ALUMINUM  
FILTER  
FILTER  
BAROMETRIC  
RELIEF  
FILTER  
CLIP  
C06027  
Fig. 35 --- Filter Installation  
Differential Dry Bulb Control  
The temperature sensor looks like an eyelet terminal with wires  
running to it. The sensor is located in the “crimp end” and is  
sealed from moisture.  
For differential dry bulb control the standard outdoor dry bulb  
sensor is used in conjunction with an additional accessory dry  
bulb sensor (part number CRTEMPSN002A00). The accessory  
sensor must be mounted in the return airstream. (See Fig. 44.)  
Wiring is provided in the EconoMi$er IV wiring harness. (See  
Fig. 36.)  
In this mode of operation, the outdoor-air temperature is  
compared to the return-air temperature and the lower temperature  
airstream is used for cooling. When using this mode of  
changeover control, turn the enthalpy setpoint potentiometer fully  
clockwise to the D setting. (See Fig. 42.)  
Outdoor Air Lockout Sensor  
The Economi$er IV is equipped with an ambient temperature  
lockout switch located in the outdoor air stream which is used to  
lockout the compressors below a 42_F ambient temperature. (See  
Fig. 29.)  
24  
FOR OCCUPANCY CONTROL  
REPLACE JUMPER WITH  
FIELD-SUPPLIED TIME CLOCK  
Potentiometer Defaults Settings:  
LEGEND  
NOTES:  
Power Exhaust Middle  
1. 620 ohm, 1 watt 5% resistor should be removed only when using differential  
DCV— Demand Controlled Ventilation  
IAQ — Indoor Air Quality  
Minimum Pos.  
DCV Max.  
DCV Set  
Fully Closed  
enthalpy or dry bulb.  
Middle  
2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power  
supply, it cannot have the secondary of the transformer grounded.  
3. For field-installed remote minimum position POT, remove black wire jumper  
between P and P1 and set control minimum position POT to the minimum  
position.  
LA — Low Ambient Lockout Device  
OAT — Outdoor-Air Temperature  
POT— Potentiometer  
Middle  
C Setting  
Enthalpy  
RAT — Return-Air Temperature  
C06028  
Fig. 36 --- EconoMi$er IV Wiring  
BLACK  
BLUE  
4
3
5
2
500 OHM  
RESISTOR  
8
VIOLET  
PINK  
6
NOTE 1  
7
RUN  
RED  
1
-
NOTE 3  
+
10  
11  
9
50HJ540573  
ACTUATOR  
ASSEMBLY  
OPTIONAL CO  
2
SENSOR 4 - 20 mA  
OUTPUT  
WHITE  
DIRECT DRIVE  
ACTUATOR  
12  
ECONOMISER2 PLUG  
NOTES:  
1. Switch on actuator must be in run position for economizer to operate.  
2. PremierLink™ control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sensor or HH57A077  
enthalpy sensor.  
3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.  
C06029  
Fig. 37 --- EconoMi$er2 with 4 to 20 mA Control Wiring  
Outdoor Enthalpy Changeover  
enthalpy changeover set point is set with the outdoor enthalpy set  
point potentiometer on the EconoMi$er IV controller. The set  
points are A, B, C, and D. (See Fig. 45.) The factory-installed  
620-ohm jumper must be in place across terminals SR and SR+  
on the EconoMi$er IV controller. (See Fig. 29 and 46.)  
For enthalpy control, accessory enthalpy sensor (part number  
HH57AC078) is required. Replace the standard outdoor dry bulb  
temperature sensor with the accessory enthalpy sensor in the same  
mounting location. (See Fig. 29.) When the outdoor air enthalpy  
rises above the outdoor enthalpy changeover set point, the  
outdoor-air damper moves to its minimum position. The outdoor  
25  
Differential Enthalphy Control  
For differential enthalpy control, the EconoMi$er IV controller  
uses  
two  
enthalpy  
sensors  
(HH57AC078  
and  
CRENTDIF004A00), one in the outside air and one in the return  
air duct. The EconoMi$er IV controller compares the outdoor  
air enthalpy to the return air enthalpy to determine EconoMi$er  
IV use. The controller selects the lower enthalpy air (return or  
outdoor) for cooling. For example, when the outdoor air has a  
lower enthalpy than the return air, the EconoMi$er IV opens to  
bring in outdoor air for free cooling.  
SUPPLY AIR  
TEMPERATURE  
SENSOR  
MOUNTING  
LOCATION  
SUPPLY AIR  
TEMPERATURE  
SENSOR  
2500  
2000  
1500  
1000  
500  
C06033  
Fig. 41 --- Supply Air Sensor Location  
0
0.15  
0.05  
0.25  
STATIC PRESSURE (in. wg)  
C06030  
Fig. 38 --- Barometric Flow Capacity  
30  
25  
20  
15  
10  
5
C06034  
Fig. 42 --- EconoMi$er IV Controller Potentiometer  
and LED Locations  
0
0.13 0.20 0.22 0.25 0.30 0.35 0.40 0.45 0.50  
STATIC PRESSURE (in. wg)  
Replace the standard outside air dry bulb temperature sensor with  
the accessory enthalpy sensor in the same mounting location.  
(See Fig. 29.) Mount the return air enthalpy sensor in the return  
air duct. (See Fig. 44.) Wiring is provided in the EconoMi$er IV  
wiring harness. (See Fig. 36.) The outdoor enthalpy changeover  
set point is set with the outdoor enthalpy set point potentiometer  
on the EconoMi$er IV controller. When using this mode of  
changeover control, turn the enthalpy setpoint potentiometer fully  
clockwise to the D setting.  
C06031  
Fig. 39 --- Outdoor--Air Damper Leakage  
6000  
5000  
4000  
3000  
2000  
1000  
0
Indoor Air Quality (IAQ) Sensor Input  
The IAQ input can be used for demand control ventilation control  
based on the level of CO measured in the space or return air  
2
duct.  
Mount the accessory IAQ sensor according to manufacturer  
specifications. The IAQ sensor should be wired to the AQ and  
AQ1 terminals of the controller. Adjust the DCV potentiometers  
to correspond to the DCV voltage output of the indoor air quality  
sensor at the user-determined set point. (See Fig. 47.)  
0.05  
0.10  
0.15  
0.20  
0.25  
0.30  
0.35  
STATIC PRESSURE (in. wg)  
C06032  
If a separate field-supplied transformer is used to power the IAQ  
sensor, the sensor must not be grounded or the EconoMi$er IV  
control board will be damaged.  
Fig. 40 --- Return--Air Pressure Drop  
Exhaust Set Point Adjustment  
The exhaust set point will determine when the exhaust fan runs  
based on damper position (if accessory power exhaust is  
installed). The set point is modified with the Exhaust Fan Set  
Point (EXH SET) potentiometer. (See Fig. 42.) The set point  
represents the damper position above which the exhaust fans will  
be turned on. When there is a call for exhaust, the EconoMi$er IV  
controller provides a 45 ± 15 second delay before exhaust fan  
26  
activation to allow the dampers to open. This delay allows the  
damper to reach the appropriate position to avoid unnecessary fan  
overload.  
Thermostats  
The EconoMi$er IV control works with conventional thermostats  
that have a Y1 (cool stage 1), Y2 (cool stage 2), W1 (heat stage  
1), W2 (heat stage 2), and G (fan). The EconoMi$er IV control  
does not support space temperature sensors. Connections are  
made at the thermostat terminal connection board located in the  
main control box.  
Minimum Position Control  
There is a minimum damper position potentiometer on the  
EconoMi$er IV controller. (See Fig. 42.) The minimum damper  
position maintains the minimum airflow into the building during  
the occupied period.  
19  
LED ON  
18  
When using demand ventilation, the minimum damper position  
represents the minimum ventilation position for VOC (volatile  
organic compound) ventilation requirements. The maximum  
demand ventilation position is used for fully occupied ventilation.  
When demand ventilation control is not being used, the minimum  
position potentiometer should be used to set the occupied  
ventilation position. The maximum demand ventilation position  
should be turned fully clockwise.  
Adjust the minimum position potentiometer to allow the  
minimum amount of outdoor air, as required by local codes, to  
enter the building. Make minimum position adjustments with at  
least 10_F temperature difference between the outdoor and  
return-air temperatures.  
D
17  
LED ON  
LED OFF  
16  
15  
14  
C
LED ON  
LED OFF  
B
13  
12  
LED ON  
LED OFF  
A
11  
10  
9
LED OFF  
85 90  
95  
100  
50  
55 60  
70 75  
40 45  
65  
80  
DEGREES FAHRENHEIT  
C06035  
To determine the minimum position setting, perform the  
following procedure:  
Fig. 43 --- Outside Air Temperature  
Changeover Set Points  
1. Calculate the appropriate mixed air temperature using the  
following formula:  
ECONOMI$ER IV  
CONTROLLER  
OA  
100  
RA  
100  
+ (TR x  
(TO x  
)
) =TM  
ECONOMI$ER IV  
T
O
= Outdoor-Air Temperature  
OA = Percent of Outdoor Air  
T = Return-Air Temperature  
RA = Percent of Return Air  
R
GROMMET  
T
M
= Mixed-Air Temperature  
As an example, if local codes require 10% outdoor air during  
occupied conditions, outdoor-air temperature is 60_F, and  
return-air temperature is 75_F.  
RETURN AIR  
SENSOR  
(60 x .10) + (75 x .90) = 73.5_F  
2. Disconnect the supply air sensor from terminals T and T1.  
RETURN DUCT  
(FIELD-PROVIDED)  
3. Ensure that the factory-installed jumper is in place across  
terminals P and P1. If remote damper positioning is being  
used, make sure that the terminals are wired according to  
Fig. 36 and that the minimum position potentiometer is  
turned fully clockwise.  
C06036  
Fig. 44 --- Return Air Temperature or Enthalpy  
Sensor Mounting Location  
Occupancy Control  
4. Connect 24 vac across terminals TR and TR1.  
The factory default configuration for the EconoMi$er IV control  
is occupied mode. Occupied mode is provided by the black  
jumper from terminal TR to terminal N. When unoccupied mode  
is desired, install a field-supplied timeclock function in place of  
the jumper between TR and N. (See Fig. 36.) When the timeclock  
contacts are closed, the EconoMi$er IV control will be in  
occupied mode. When the timeclock contacts are open (removing  
the 24-v signal from terminal N), the EconoMi$er IV will be in  
unoccupied mode.  
5. Carefully adjust the minimum position potentiometer  
until the measured supply air temperature matches the  
calculated value.  
6. Reconnect the mixed air sensor to terminals T and T1.  
Remote control of the EconoMi$er IV damper is desirable when  
requiring  
additional  
temporary  
ventilation.  
If  
a
field-supplied remote potentiometer (Honeywell part number  
S963B1128) is wired to the EconoMi$er IV controller, the  
minimum position of the damper can be controlled from a remote  
location.  
To control the minimum damper position remotely, remove the  
factory-installed jumper on the P and P1 terminals on the  
EconoMi$er IV controller. Wire the field-supplied potentiometer  
to the P and P1 terminals on the EconoMi$er IV controller. (See  
Fig. 46.)  
Damper Movement  
Damper movement from full open to full closed (or vice versa)  
1
takes 2 / minutes.  
2
27  
85  
90  
95 100 105 110  
(29) (32) (35) (38) (41) (43)  
46  
4
CONTROL CONTROL POINT  
4
CURVE  
APPROX. deg. F (deg. C)  
AT 50% RH  
80  
(27)  
42  
A
B
C
D
73 (23)  
70 (21)  
67 (19)  
63 (17)  
40  
8
3
6
75  
3
(24)  
4
3
32  
70  
(21)  
30  
RELATIVE HUMIDITY (%)  
28  
ENTHALPY BTU PER POUND DRY AIR  
0
0
0
1
26  
9
65  
80  
(18)  
4
70  
2
0
6
2
2
60  
50  
(16)  
0
2
0
4
A
8
55  
1
(13)  
B
30  
6
1
50  
(10)  
C
4
1
20  
2
45  
(7)  
D
1
40  
(4)  
0
1
35  
(2)  
A
B
C
D
HIGH LIMIT  
CURVE  
35  
(2)  
40  
45  
50  
55  
60  
65  
70  
75  
80  
85  
90  
95 100 105 110  
(4) (7) (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43)  
APPROXIMATE DRY BULB TEMPERATURE--degrees F (degrees C)  
C06037  
Fig. 45 --- Enthalpy Changeover Set Points  
Typically the maximum ventilation rate will be about 5 to 10%  
more than the typical cfm required per person, using normal  
outside air design criteria.  
OA  
100  
RA  
+ (TR x  
(TO x  
)
) =TM  
100  
Demand Controlled Ventilation (DCV)  
T
= Outdoor-Air Temperature  
O
When using the EconoMi$er IV for demand controlled  
ventilation, there are some equipment selection criteria which  
should be considered. When selecting the heat capacity and cool  
capacity of the equipment, the maximum ventilation rate must be  
evaluated for design conditions. The maximum damper position  
must be calculated to provide the desired fresh air.  
OA = Percent of Outdoor Air  
T = Return-Air Temperature  
R
RA = Percent of Return Air  
T
M
= Mixed-Air Temperature  
Once base ventilation has been determined, set the minimum  
damper position potentiometer to the correct position.  
A proportional anticipatory strategy should be taken with the  
following conditions: a zone with a large area, varied occupancy,  
and equipment that cannot exceed the required ventilation rate at  
design conditions. Exceeding the required ventilation rate means  
the equipment can condition air at a maximum ventilation rate  
that is greater than the required ventilation rate for maximum  
occupancy. A proportional-anticipatory strategy will cause the  
The same equation can be used to determine the occupied or  
maximum ventilation rate to the building. For example, an output  
of 3.6 volts to the actuator provides a base ventilation rate of 5%  
and an output of 6.7 volts provides the maximum ventilation rate  
of 20% (or base plus 15 cfm per person). Use Fig. 44 to  
determine the maximum setting of the CO sensor. For example,  
a 1100 ppm set point relates to a 15 cfm per person design. Use  
the 1100 ppm curve on Fig. 47 to find the point when the CO  
sensor output will be 6.7 volts. Line up the point on the graph  
with the left side of the chart to determine that the range  
configuration for the CO sensor should be 1800 ppm. The  
EconoMi$er IV controller will output the 6.7 volts from the CO  
sensor to the actuator when the CO concentration in the space is  
at 1100 ppm. The DCV set point may be left at 2 volts since the  
CO sensor voltage will be ignored by the EconoMi$er IV  
controller until it rises above the 3.6 volt setting of the minimum  
position potentiometer.  
2
fresh air supplied to increase as the room CO level increases  
2
2
even though the CO set point has not been reached. By the time  
2
the CO level reaches the set point, the damper will be at  
2
maximum ventilation and should maintain the set point.  
2
In order to have the CO sensor control the economizer damper in  
2
2
this manner, first determine the damper voltage output for  
minimum or base ventilation. Base ventilation is the ventilation  
required to remove contaminants during unoccupied periods. The  
following equation may be used to determine the percent of  
outside-air entering the building for a given damper position. For  
best results there should be at least a 10 degree difference in  
outside and return-air temperatures.  
2
2
Once the fully occupied damper position has been determined, set  
the maximum damper demand control ventilation potentiometer  
to this position. Do not set to the maximum position as this can  
result in over-ventilation to the space and potential high-humidity  
levels.  
28  
Dehumidification of Fresh Air with DCV Control  
TR1  
EXH  
Set  
10V  
TR  
N1  
Information from ASHRAE indicates that the largest humidity  
load on any zone is the fresh air introduced. For some  
applications, a device such as a 62AQ energy recovery unit is  
added to reduce the moisture content of the fresh air being  
brought into the building when the enthalpy is high. In most  
cases, the normal heating and cooling processes are more than  
adequate to remove the humidity loads for most commercial  
applications.  
N
2V  
EXH  
24  
Vac  
HOT  
24 Vac  
COM  
P1  
T1  
P
T
Min  
Pos  
_
+
Open  
DCV  
Max  
10V  
1
2
5
2V  
If normal rooftop heating and cooling operation is not adequate  
for the outdoor humidity level, an energy recovery unit and/or a  
dehumidification option should be considered.  
AQ1  
AQ  
SO+  
SO  
SR+  
SR  
DCV  
DCV  
Set  
10V  
4
3
Step 9 —Adjust Evaporator--Fan Speed  
2V  
Free  
Cool  
Adjust evaporator-fan speed to meet jobsite conditions.  
EF1  
EF  
C
D
B
Tables 9 and 10 show fan rpm at motor pulley settings. Tables 11  
and 15 show maximum amp draw of belt-drive motor. Table 14  
shows sound data. Refer to Tables 16-35 for performance data.  
See Table 36 for accessory static pressure drop. See Fig. 48 for  
the Humidi-MiZer™ system static pressure drops.  
A
C06038  
Fig. 46 --- EconoMi$er IV Control  
Belt drive motors  
CO SENSOR MAX RANGE SETTING  
2
Fan motor pulleys are factory set for speed shown in Table 1 or 2.  
Check pulley alignment and belt tension prior to start-up.  
6000  
To change fan speed:  
5000  
4000  
3000  
2000  
1000  
0
1. Shut off the unit power supply and tag disconnect.  
2. Loosen the belt by loosening the fan motor mounting nuts.  
(See Fig. 49.)  
800 ppm  
900 ppm  
1000 ppm  
1100 ppm  
3. Loosen movable pulley flange setscrew. (See Fig. 50.)  
4. Screw movable flange toward fixed flange to increase  
speed and away from fixed flange to decrease speed.  
Increasing fan speed increases load on motor. Do not  
exceed maximum speed specified in Table 1 or 2.  
5. Set movable flange at nearest keyway of pulley hub and  
tighten setscrew. (See Table 1 or 2 for speed change for  
each full turn of pulley flange.)  
2
3
4
5
6
7
8
DAMPER VOLTAGE FOR MAX VENTILATION RATE  
C06039  
Fig. 47 --- CO Sensor Maximum Range Setting  
2
6. Adjust belt tension and align gan and motor pulleys per  
guidance below.  
To align fan and motor pulleys, loosen fan pulley setscrews and  
slide fan pulley along fan shaft. Make angular alignment by  
loosening motor from mounting.  
CO Sensor Configuration  
2
The CO sensor has preset standard voltage settings that can be  
selected anytime after the sensor is powered up. (See Table 8.)  
2
Use setting 1 or 2 for Carrier equipment. (See Table 8.)  
Additional motor and fan alignment, as well as angular alignment  
can be made by loosening the four motor mounting bolts from  
the mounting plate.  
1. Press Clear and Mode buttons. Hold at least 5 seconds  
until the sensor enters the Edit mode.  
To adjust belt tension:  
2. Press Mode twice. The STDSET Menu will appear.  
1. Loosen the two motor mounting nuts as shown in Fig. 49.  
Some models may have a third mounting nut located on  
the opposite side of the fan motor mounting plate.  
3. Use the Up/Down button to select the preset number. (See  
Table 8.)  
4. Press Enter to lock in the selection.  
2. Slide motor mounting plate away from fan scroll for  
5. Press Mode to exit and resume normal operation.  
1
proper belt tension ( / -in. deflection with 8 to 10 lb of  
2
The custom settings of the CO sensor can be changed anytime  
2
force) and tighten mounting nuts.  
after the sensor is energized. Follow the steps below to change the  
non-standard settings:  
3. Adjust lock bolt and nut on mounting plate to secure  
motor in fixed position.  
1. Press Clear and Mode buttons. Hold at least 5 seconds  
until the sensor enters the Edit mode.  
2. Press Mode twice. The STDSET Menu will appear.  
3. Use the Up/Down button to toggle to the NONSTD menu  
and press Enter.  
4. Use the Up/Down button to toggle through each of the  
nine variables, starting with Altitude, until the desired  
setting is reached.  
5. Press Mode to move through the variables.  
6. Press Enter to lock in the selection, then press Mode to  
continue to the next variable.  
29  
Table 8—CO Sensor Standard Settings  
2
VENTILATION  
ANALOG  
CO  
OPTIONAL  
RELAY  
2
RATE  
CONTROL RANGE RELAY SETPOINT HYSTERESIS  
SETTING  
EQUIPMENT  
OUTPUT  
OUTPUT  
(cfm/Person)  
(ppm)  
(ppm)  
(ppm)  
0-10V  
Proportional  
Proportional  
Exponential  
Proportional  
Proportional  
Exponential  
Exponential  
Proportional  
Proportional  
Any  
Any  
Any  
15  
0-2000  
1000  
50  
1
2
3
4
5
6
7
8
9
4-20 mA  
2-10V  
Interface w/Standard  
0-2000  
0-2000  
0-1100  
0- 900  
0-1100  
0- 900  
0-9999  
0-2000  
1000  
1100  
1100  
900  
50  
50  
7-20 mA  
Building Control System  
0-10V  
4-20 mA  
0-10V  
50  
4-20 mA  
0-10V  
20  
50  
4-20 mA  
Economizer  
0-10V  
15  
1100  
900  
50  
4-20 mA  
0-10V  
20  
50  
4-20 mA  
0-10V  
Health & Safety  
—
5000  
700  
500  
50  
4-20 mA  
Parking/Air Intakes/  
Loading Docks  
0-10V  
—
4-20 mA  
LEGEND  
ppm — Parts Per Million  
0.35  
0.3  
0.25  
0.2  
0.15  
0.1  
4 & 5 ton  
6 ton  
3 ton  
0.05  
0
0
4000  
1000  
3000  
2000  
5000  
6000  
C06133  
Fig. 48 --- Humidi--MiZert Adaptive Dehumidification System Static Pressure Drop (in. wg)  
C06134  
C06041  
Fig. 49 --- Belt Drive Motor Mounting  
Fig. 50 --- Indoor--Fan Pulley Adjustment  
30  
Table 9—48HJ and 48he Fan Rpm at Motor Pulley Setting With Standard Motor*  
UNIT  
48HJ  
48HE  
MOTOR PULLEY TURNS OPEN  
1
1
1
1
1
1
0
/
2
1
1 /  
2
2 /  
3
3 /  
4
4 /  
5
5 /  
2
6
2
2
2
2
003  
004  
005  
006  
007  
936  
906  
876  
971  
1102  
1389  
1492  
846  
935  
1061  
1354  
1445  
816  
898  
1019  
1318  
1399  
786  
862  
978  
1283  
1352  
756  
826  
936  
1248  
1305  
726  
789  
895  
1212  
1259  
696  
753  
853  
1177  
1212  
666  
716  
812  
1141  
1166  
639  
680  
770  
1106  
1119  
—
—
—
1070  
—
—
—
—
1035  
—
1044  
1185  
1460  
1585  
1008  
1144  
1425  
1538  
*Approximate fan rpm shown (standard motor/drive).  
Table 10—48HJ Fan Rpm at Motor Pulley Setting With High-Static Motor*  
MOTOR PULLEY TURNS OPEN  
UNIT  
48HJ  
1
1
1
1
1
1
0
/
2
1
1 /  
2
2 /  
3
3 /  
4
4 /  
5
5 /  
2
6
2
2
2
2
004  
005  
006  
007  
1455  
1455  
1685  
1685  
1423  
1423  
1589  
1589  
1392  
1392  
1557  
1557  
1360  
1360  
1525  
1525  
1328  
1328  
1493  
1493  
1297  
1297  
1460  
1460  
1265  
1265  
1428  
1428  
1233  
1233  
1396  
1396  
1202  
1202  
1364  
1364  
1170  
1170  
1332  
1332  
1138  
1138  
1300  
1300  
1107  
1107  
—
1075  
1075  
—
—
—
*Approximate fan rpm shown (high-static motor/drive).  
Table 11—Evaporator-Fan Motor Data — Standard Motor  
UNIT  
48HJ  
48HE  
UNIT  
PHASE  
MAXIMUM  
CONTINUOUS BHP*  
MAXIMUM  
OPERATING WATTS*  
MAXIMUM  
AMP DRAW  
UNIT VOLTAGE  
003  
Single  
Single  
0.58  
1.20  
580  
208/230  
2.0  
1000  
208/230  
208/230  
460  
4.9  
4.9  
2.2  
2.2  
4.9  
4.9  
2.2  
2.2  
9.2  
6.7  
3.0  
3.0  
6.7  
3.0  
3.0  
004  
Three  
Single  
1.20  
1.20  
1000  
1000  
575  
208/230  
208/230  
460  
005  
Three  
Single  
1.20  
1.30  
1000  
1650  
575  
208/230  
208/230  
460  
006  
007  
Three  
2.40  
2120  
575  
208/230  
460  
Three  
2.40  
2120  
575  
LEGEND  
Bhp — Brake Horsepower  
*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence. Using the  
fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.  
Table 12—Accessory static pressure  
CFM  
1500  
COMPONENT  
600  
800  
1000  
1250  
1750  
2000  
2250  
2500  
2750  
3000  
Vertical EconoMi$er IV  
and EconoMi$er2  
Horizontal EconoMi$er  
IV and EconoMi$er2  
0.010  
0.020  
0.035  
0.045  
0.065  
0.080  
0.120  
0.145  
0.175  
0.220  
0.255  
—
—
—
—
—
0.100  
0.125  
0.150  
0.180  
0.225  
0.275  
Table 13—Evaporator-Fan Motor Data — High-Static Motors  
UNIT  
48HJ  
UNIT  
MAXIMUM  
MAXIMUM  
MAXIMUM  
UNIT VOLTAGE  
PHASE  
CONTINUOUS BHP*  
OPERATING WATTS*  
AMP DRAW  
208/230  
460  
6.7  
3.0  
3.0  
6.7  
3.0  
3.0  
8.6  
3.9  
3.9  
8.6  
3.9  
3.9  
004  
005  
006  
007  
Three  
2.40  
2.40  
2.90  
2.90  
2120  
2120  
2615  
2615  
575  
208/230  
460  
Three  
Three  
Three  
575  
208/230  
460  
575  
208/230  
460  
575  
LEGEND  
Bhp — Brake Horsepower  
*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence. Using the  
fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.  
31  
Table 14—48HJ Outdoor Sound Power (Total Unit)  
ARI  
RATING  
(decibels)  
OCTAVE BANDS  
UNIT  
48HJ  
63  
125  
250  
500  
1000  
2000  
4000  
8000  
004,005  
006,007  
76  
80  
55.9  
59.1  
66.0  
68.9  
64.0  
68.7  
66.2  
71.9  
68.4  
74.0  
64.5  
68.9  
61.7  
65.7  
57.3  
59.0  
LEGEND  
ARI --- Air Conditioning and Refrigeration Institute  
Table 15—48HE Outdoor Sound Power (Total Unit)  
ARI  
RATING  
(decibels)  
OCTAVEBANDS  
A--  
WEIGHTED  
(db)  
UNIT  
48HE  
63  
125  
250  
500  
1000  
2000  
4000  
8000  
003--005  
006  
76  
80  
76  
80  
55.9  
59.1  
66.0  
68.9  
64.0  
68.7  
66.2  
71.9  
68.4  
74.0  
64.5  
68.9  
61.7  
65.7  
57.3  
59.0  
GENERAL FAN PERFORMANCE NOTES  
1. Values include losses for filters, unit casing, and wet coils. See Table 31 and Fig. 44 for accessory/FIOP static pressure information.  
2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using the  
fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.  
See Tables 9 and 10 on this page for additional information.  
3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.  
4. Interpolation is permissible. Do not extrapolate.  
Table 16—Fan Performance 40HE003 — Vertical Discharge Units; Standard Motor (Belt Drive)**  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
0.1  
Rpm  
0.2  
Rpm  
0.4  
Rpm  
0.6  
Rpm  
0.8  
Rpm  
1.0  
(Cfm)  
Bhp  
Bhp  
Bhp  
Bhp  
Bhp  
Rpm  
878  
902  
937  
957  
981  
Bhp  
0.37  
0.41  
0.47  
0.53  
0.58  
600  
700  
500  
529  
547  
570  
599  
0.08  
0.09  
0.1  
0.13  
0.15  
531  
567  
592  
620  
650  
0.08  
0.09  
0.12  
0.14  
0.16  
607  
633  
660  
691  
717  
0.14  
0.16  
0.19  
0.22  
0.26  
713  
739  
761  
793  
818  
0.21  
0.24  
0.27  
0.32  
0.36  
788  
816  
845  
870  
894  
0.29  
0.32  
0.37  
0.42  
0.47  
800  
900  
1000  
32  
Table 17—Fan Performance 48HJ004, 48HE004 — Vertical Discharge Units; Standard Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
567  
599  
632  
666  
701  
737  
773  
0.15  
0.18  
0.22  
0.26  
0.31  
0.36  
0.42  
145  
177  
215  
257  
306  
361  
422  
688  
717  
747  
778  
810  
842  
875  
0.22  
0.27  
0.31  
0.37  
0.43  
0.49  
0.57  
222  
265  
313  
367  
426  
491  
564  
786  
814  
842  
871  
901  
931  
963  
0.30  
0.35  
0.41  
0.47  
0.54  
0.62  
0.70  
296  
349  
407  
471  
540  
616  
699  
871  
897  
925  
952  
981  
1010  
1040  
0.37  
0.43  
0.50  
0.57  
0.65  
0.74  
0.84  
368  
430  
498  
572  
651  
738  
831  
947  
972  
999  
1025  
1053  
1081  
1110  
0.44  
0.51  
0.59  
0.67  
0.76  
0.86  
0.96  
437  
509  
587  
670  
760  
856  
960  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
1016  
1041  
1066  
1093  
1119  
1147  
1175  
0.51  
0.59  
0.68  
0.77  
0.87  
0.98  
1.09  
505  
587  
674  
767  
866  
972  
1086  
1080  
1104  
1129  
1155  
1181  
1208  
—
0.57  
0.67  
0.76  
0.87  
0.98  
1.09  
—
572  
662  
759  
861  
970  
1086  
—
1139  
1163  
1188  
1213  
1239  
—
0.64  
0.74  
0.85  
0.96  
1.08  
—
637  
737  
843  
955  
1073  
—
1195  
1219  
1243  
1268  
1294  
—
0.71  
0.81  
0.93  
1.05  
1.18  
—
702  
811  
925  
1047  
1175  
—
1249  
1272  
1296  
1321  
—
—
—
0.77  
0.89  
1.01  
1.14  
—
—
—
765  
883  
1007  
1137  
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 1.20.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 680 to 1044 rpm. All other rpms require field-supplied  
drive.  
3. See general fan performance notes.  
Table 18—Fan Performance 48HJ004, 48HE004 — Vertical Discharge Units; High-Static Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts  
Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
567  
599  
632  
666  
701  
737  
773  
0.15  
0.18  
0.22  
0.26  
0.31  
0.36  
0.42  
145  
177  
215  
257  
306  
361  
422  
688  
717  
747  
778  
810  
842  
875  
0.22  
0.27  
0.31  
0.37  
0.43  
0.49  
0.57  
222  
265  
313  
367  
426  
491  
564  
786  
814  
842  
871  
901  
931  
963  
0.30  
0.35  
0.41  
0.47  
0.54  
0.62  
0.70  
296  
349  
407  
471  
540  
616  
699  
871  
897  
925  
952  
981  
0.37  
0.43  
0.50  
0.57  
0.65  
0.74  
0.84  
368  
430  
498  
572  
651  
738  
831  
947  
972  
999  
1025  
1053  
1081  
1110  
0.44  
0.51  
0.59  
0.67  
0.76  
0.86  
0.96  
437  
509  
587  
670  
760  
856  
960  
1010  
1040  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts  
Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
1016  
1041  
1066  
1093  
1119  
1147  
1175  
0.51  
0.59  
0.68  
0.77  
0.87  
0.98  
1.09  
505  
587  
674  
767  
866  
972  
1086  
1080  
1104  
1129  
1155  
1181  
1208  
1235  
0.57  
0.67  
0.76  
0.87  
0.98  
1.09  
1.22  
572  
662  
759  
861  
970  
1139  
1163  
1188  
1213  
1239  
1265  
1292  
0.64  
0.74  
0.85  
0.96  
1.08  
1.21  
1.34  
637  
737  
843  
1195  
1219  
1243  
1268  
1294  
1320  
1346  
0.71  
0.81  
0.93  
1.05  
1.18  
1.32  
1.46  
702  
811  
925  
1047  
1175  
1310  
1452  
1249  
1272  
1296  
1321  
1346  
1371  
1397  
0.77  
0.89  
1.01  
1.14  
1.28  
1.43  
1.58  
765  
883  
1007  
1137  
1275  
1419  
1572  
955  
1073  
1199  
1332  
LEGEND  
1086  
1209  
NOTES:  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
3. See general fan performance notes.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-supplied  
drive.  
33  
Table 19— Fan Performance 48HJ005, 48HE005 — Vertical Discharge Units; Standard Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts  
Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
666  
701  
737  
773  
810  
847  
885  
923  
962  
0.26  
0.31  
0.36  
0.42  
0.49  
0.57  
0.66  
0.75  
0.85  
257  
306  
361  
422  
491  
567  
652  
745  
847  
778  
810  
842  
875  
909  
943  
978  
1014  
1049  
0.37  
0.43  
0.49  
0.57  
0.65  
0.73  
0.83  
0.94  
1.05  
367  
426  
491  
564  
643  
730  
826  
930  
1043  
871  
901  
931  
963  
994  
1027  
1060  
1093  
—
0.47  
0.54  
0.62  
0.70  
0.79  
0.89  
1.00  
1.11  
—
471  
540  
616  
699  
790  
888  
994  
1109  
—
952  
981  
0.57  
0.65  
0.74  
0.84  
0.94  
1.05  
1.16  
—
572  
651  
738  
831  
932  
1040  
1157  
—
1025  
1053  
1081  
1110  
1140  
1170  
—
0.67  
0.76  
0.86  
0.96  
1.08  
1.20  
—
670  
760  
856  
960  
1070  
1189  
—
1010  
1040  
1070  
1101  
1133  
—
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts  
Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
1093  
1119  
1147  
1175  
—
—
—
—
—
0.77  
0.87  
0.98  
1.09  
—
—
—
—
—
767  
866  
972  
1086  
—
—
—
—
—
1155  
1181  
1208  
—
—
—
—
—
—
0.87  
0.98  
1.09  
—
—
—
—
—
—
861  
970  
1086  
—
—
—
—
—
—
1213  
1239  
—
—
—
—
—
—
—
0.96  
1.08  
—
—
—
—
—
—
—
955  
1073  
—
—
—
—
—
—
—
1268  
1294  
—
—
—
—
—
—
—
1.05  
1.18  
—
—
—
—
—
—
—
1047  
1175  
—
—
—
—
—
—
—
1321  
—
—
—
—
—
—
—
—
1.14  
—
—
—
—
—
—
—
—
1137  
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
3. See general fan performance notes.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 770 to 1185 rpm. All other rpms require field-supplied drive.  
34  
Table 20—Fan Performance 48HJ005, 48HE005 — Vertical Discharge Units; High-Static Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
670  
760  
856  
960  
1070  
1189  
1316  
1453  
1598  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
666  
701  
737  
773  
810  
847  
885  
923  
962  
0.26  
0.31  
0.36  
0.42  
0.49  
0.57  
0.66  
0.75  
0.85  
257  
306  
361  
422  
491  
567  
652  
745  
847  
778  
810  
842  
875  
909  
943  
978  
1014  
1049  
0.37  
0.43  
0.49  
0.57  
0.65  
0.73  
0.83  
0.94  
1.05  
367  
426  
491  
564  
643  
730  
826  
930  
1043  
871  
901  
931  
963  
994  
1027  
1060  
1093  
1127  
0.47  
0.54  
0.62  
0.70  
0.79  
0.89  
1.00  
1.11  
1.24  
471  
540  
616  
699  
790  
888  
994  
1109  
1233  
952  
981  
0.57  
0.65  
0.74  
0.84  
0.94  
1.05  
1.16  
1.29  
1.42  
572  
651  
738  
831  
932  
1040  
1157  
1283  
1417  
1025  
1053  
1081  
1110  
1140  
1170  
1200  
1231  
1263  
0.67  
0.76  
0.86  
0.96  
1.08  
1.20  
1.32  
1.46  
1.61  
1010  
1040  
1070  
1101  
1133  
1165  
1198  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
1093  
1119  
1147  
1175  
1204  
1233  
1262  
1293  
1323  
0.77  
0.87  
0.98  
1.09  
1.21  
1.34  
1.48  
1.63  
1.79  
767  
866  
972  
1086  
1207  
1336  
1473  
1620  
1776  
1155  
1181  
1208  
1235  
1263  
1292  
1321  
1350  
1380  
0.87  
0.98  
1.09  
1.22  
1.35  
1.49  
1.64  
1.79  
1.96  
861  
970  
1213  
1239  
1265  
1292  
1320  
1348  
1376  
1405  
1434  
0.96  
1.08  
1.21  
1.34  
1.48  
1.63  
1.79  
1.96  
2.13  
955  
1073  
1199  
1332  
1472  
1622  
1779  
1946  
2123  
1268  
1294  
1320  
1346  
1373  
1401  
1428  
1457  
1486  
1.05  
1.18  
1.32  
1.46  
1.61  
1.77  
1.94  
2.12  
2.31  
1047  
1175  
1310  
1452  
1603  
1762  
1930  
2106  
2293  
1321  
1346  
1371  
1397  
1424  
1451  
1479  
1506  
—
1.14  
1.28  
1.43  
1.58  
1.74  
1.91  
2.09  
2.28  
—
1137  
1275  
1419  
1572  
1732  
1901  
2078  
2265  
—
1086  
1209  
1340  
1480  
1627  
1784  
1950  
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-supplied  
drive.  
3. See general fan performance notes.  
Table 21—Fan Performance 48HJ006, 48HE006 Single-Phase — Vertical Discharge Units;  
Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
848  
887  
927  
0.42  
0.49  
0.57  
0.65  
0.75  
0.85  
0.97  
1.09  
1.23  
—
371  
433  
502  
579  
663  
757  
859  
970  
1091  
—
968  
1004  
1040  
1077  
1115  
1153  
1191  
1230  
—
0.55  
0.63  
0.71  
0.81  
0.91  
1.03  
1.15  
1.29  
—
486  
556  
633  
718  
811  
913  
1023  
1143  
—
1069  
1103  
1137  
1172  
1208  
1244  
—
—
—
—
—
0.68  
0.76  
0.86  
0.96  
1.08  
1.20  
—
—
—
—
—
600  
678  
763  
856  
957  
1066  
—
—
—
—
—
1158  
1190  
1223  
1257  
1291  
—
—
—
—
—
0.80  
0.90  
1.00  
1.12  
1.24  
—
—
—
—
—
715  
800  
892  
993  
1101  
—
—
—
—
—
1238  
1269  
1302  
1334  
—
—
—
—
—
—
—
0.94  
1.04  
1.15  
1.27  
—
—
—
—
—
—
—
831  
922  
1022  
1130  
—
—
—
—
—
—
—
967  
1007  
1048  
1090  
1131  
1173  
—
—
—
—
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1312  
1342  
1374  
—
—
—
—
—
—
—
1.07  
1.18  
1.30  
—
—
—
—
—
—
—
948  
1047  
1153  
—
—
—
—
—
—
—
1380  
—
—
—
—
—
—
—
—
1.20  
—
—
—
—
—
—
—
—
—
—
1067  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 1.30.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied  
drive.  
3. See general fan performance notes.  
35  
Table 22—Fan Performance 48HJ006, 48HE006 Three-Phase — Vertical Discharge Units;  
Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
831  
922  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
848  
887  
927  
0.42  
0.49  
0.57  
0.65  
0.75  
0.85  
0.97  
1.09  
1.23  
1.38  
1.54  
371  
433  
502  
579  
663  
757  
859  
970  
968  
1004  
1040  
1077  
1115  
1153  
1191  
1230  
1269  
1309  
1349  
0.55  
0.63  
0.71  
0.81  
0.91  
1.03  
1.15  
1.29  
1.43  
1.59  
1.76  
486  
556  
633  
718  
811  
1069  
1103  
1137  
1172  
1208  
1244  
1281  
1318  
1355  
1393  
1431  
0.68  
0.76  
0.86  
0.96  
1.08  
1.20  
1.33  
1.48  
1.63  
1.80  
1.98  
600  
678  
763  
856  
957  
1066  
1185  
1313  
1451  
1600  
1759  
1158  
1190  
1223  
1257  
1291  
1326  
1361  
1397  
1433  
1470  
1506  
0.80  
0.90  
1.00  
1.12  
1.24  
1.37  
1.51  
1.67  
1.83  
2.01  
2.20  
715  
800  
892  
1238  
1269  
1302  
1334  
1368  
1401  
1435  
1470  
1505  
1540  
—
0.94  
1.04  
1.15  
1.27  
1.40  
1.54  
1.69  
1.86  
2.03  
2.21  
—
1022  
1130  
1246  
1371  
1505  
1649  
1803  
1967  
—
967  
993  
1007  
1048  
1090  
1131  
1173  
1215  
1258  
1101  
1219  
1345  
1481  
1627  
1784  
1951  
913  
1023  
1143  
1273  
1413  
1564  
1091  
1223  
1365  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1312  
1342  
1374  
1406  
1438  
1471  
1504  
1538  
1572  
—
1.07  
1.18  
1.30  
1.43  
1.57  
1.72  
1.87  
2.04  
2.23  
—
948  
1047  
1153  
1268  
1391  
1523  
1665  
1816  
1978  
—
1380  
1411  
1441  
1473  
1504  
1536  
1569  
1602  
—
1.20  
1.32  
1.45  
1.58  
1.73  
1.89  
2.06  
2.23  
—
1067  
1173  
1286  
1407  
1537  
1677  
1825  
1984  
—
1445  
1474  
1505  
1535  
1567  
1598  
1630  
—
1.34  
1.46  
1.60  
1.74  
1.90  
2.06  
2.24  
—
1189  
1300  
1420  
1548  
1685  
1831  
1986  
—
1506  
1535  
1565  
1595  
1626  
1657  
—
—
—
—
—
1.48  
1.61  
1.75  
1.90  
2.06  
2.24  
—
—
—
—
—
1312  
1429  
1555  
1690  
1833  
1986  
—
—
—
—
—
1564  
1593  
1622  
1652  
1682  
—
—
—
—
—
1.62  
1.76  
1.91  
2.06  
2.23  
—
—
—
—
—
1437  
1560  
1692  
1833  
1983  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied  
drive.  
3. See general fan performance notes.  
Table 23— Fan Performance 48HJ006, 48HE006 — Vertical Discharge Units; High-Static Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
831  
922  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
848  
887  
927  
0.42  
0.49  
0.57  
0.65  
0.75  
0.85  
0.97  
1.09  
1.23  
1.38  
1.54  
371  
433  
502  
579  
663  
757  
859  
970  
968  
1004  
1040  
1077  
1115  
1153  
1191  
1230  
1269  
1309  
1349  
0.55  
0.63  
0.71  
0.81  
0.91  
1.03  
1.15  
1.29  
1.43  
1.59  
1.76  
486  
556  
633  
718  
811  
1069  
1103  
1137  
1172  
1208  
1244  
1281  
1318  
1355  
1393  
1431  
0.68  
0.76  
0.86  
0.96  
1.08  
1.20  
1.33  
1.48  
1.63  
1.80  
1.98  
600  
678  
763  
856  
957  
1066  
1185  
1313  
1451  
1600  
1759  
1158  
1190  
1223  
1257  
1291  
1326  
1361  
1397  
1433  
1470  
1506  
0.80  
0.90  
1.00  
1.12  
1.24  
1.37  
1.51  
1.67  
1.83  
2.01  
2.20  
715  
800  
892  
1238  
1269  
1302  
1334  
1368  
1401  
1435  
1470  
1505  
1540  
1576  
0.94  
1.04  
1.15  
1.27  
1.40  
1.54  
1.69  
1.86  
2.03  
2.21  
2.41  
1022  
1130  
1246  
1371  
1505  
1649  
1803  
1967  
2142  
967  
993  
1007  
1048  
1090  
1131  
1173  
1215  
1258  
1101  
1219  
1345  
1481  
1627  
1784  
1951  
913  
1023  
1143  
1273  
1413  
1564  
1091  
1223  
1365  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1312  
1342  
1374  
1406  
1438  
1471  
1504  
1538  
1572  
1607  
1642  
1.07  
1.18  
1.30  
1.43  
1.57  
1.72  
1.87  
2.04  
2.23  
2.42  
2.63  
948  
1047  
1153  
1268  
1391  
1523  
1665  
1816  
1978  
2150  
2333  
1380  
1411  
1441  
1473  
1504  
1536  
1569  
1602  
1635  
1669  
1704  
1.20  
1.32  
1.45  
1.58  
1.73  
1.89  
2.06  
2.23  
2.42  
2.63  
2.84  
1067  
1173  
1286  
1407  
1537  
1677  
1825  
1984  
2153  
2332  
2523  
1445  
1474  
1505  
1535  
1567  
1598  
1630  
1663  
1695  
1729  
—
1.34  
1.46  
1.60  
1.74  
1.90  
2.06  
2.24  
2.42  
2.62  
2.83  
—
1189  
1300  
1420  
1548  
1685  
1831  
1986  
2152  
2328  
2515  
—
1506  
1535  
1565  
1595  
1626  
1657  
1688  
1720  
1753  
—
1.48  
1.61  
1.75  
1.90  
2.06  
2.24  
2.42  
2.61  
2.82  
—
1312  
1429  
1555  
1690  
1833  
1986  
2149  
2321  
2504  
—
1564  
1593  
1622  
1652  
1682  
1713  
1744  
1775  
—
1.62  
1.76  
1.91  
2.06  
2.23  
2.41  
2.60  
2.81  
—
1437  
1560  
1692  
1833  
1983  
2142  
2312  
2491  
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.90.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
36  
Table 24—Fan Performance 48HJ007 — Vertical Discharge Units; Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
967  
1008  
1049  
1091  
1133  
1176  
1218  
1261  
1305  
1348  
1392  
1435  
1479  
0.63  
0.72  
0.82  
0.93  
1.05  
1.18  
1.32  
1.47  
1.63  
1.80  
1.99  
2.19  
2.40  
563  
643  
731  
827  
933  
1047  
1170  
1304  
1448  
1602  
1768  
1945  
2135  
1075  
1112  
1151  
1189  
1229  
1268  
1308  
1349  
1390  
1431  
1472  
—
0.80  
0.91  
1.02  
1.14  
1.26  
1.40  
1.55  
1.72  
1.89  
2.07  
2.27  
—
715  
805  
903  
1170  
1205  
1241  
1278  
1315  
1352  
1390  
1429  
1468  
1507  
—
0.97  
1.08  
1.20  
1.33  
1.47  
1.62  
1.78  
1.96  
2.14  
2.33  
—
861  
960  
1255  
1289  
1323  
1358  
1393  
1429  
1466  
1503  
1540  
—
1.13  
1.25  
1.38  
1.52  
1.67  
1.84  
2.01  
2.19  
2.38  
—
1002  
1111  
1228  
1353  
1487  
1630  
1782  
1945  
2117  
—
1333  
1366  
1399  
1433  
1467  
1501  
1537  
—
—
—
—
—
1.28  
1.42  
1.56  
1.71  
1.87  
2.04  
2.23  
—
—
—
—
—
1139  
1258  
1384  
1519  
1662  
1815  
1977  
—
—
—
—
—
1068  
1183  
1308  
1441  
1584  
1736  
1900  
2073  
—
1008  
1123  
1247  
1380  
1523  
1677  
1841  
2016  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
1406  
1438  
1470  
1502  
1535  
1569  
—
—
—
—
—
1.43  
1.58  
1.73  
1.89  
2.06  
2.25  
—
—
—
—
—
1273  
1401  
1537  
1681  
1834  
1996  
—
—
—
—
—
1475  
1505  
1537  
1568  
1600  
—
—
—
—
—
1.58  
1.73  
1.90  
2.07  
2.25  
—
—
—
—
—
1403  
1541  
1686  
1840  
2002  
—
—
—
—
—
1540  
1569  
1600  
1631  
—
—
—
—
—
—
—
1.72  
1.89  
2.06  
2.25  
—
—
—
—
—
—
—
1531  
1678  
1833  
1996  
—
—
—
—
—
—
—
1601  
1630  
1660  
—
—
—
—
—
—
—
1.87  
2.04  
2.23  
—
—
—
—
—
—
—
1657  
1813  
1977  
—
—
—
—
—
—
—
1660  
1689  
1718  
—
—
—
—
—
—
—
2.00  
2.19  
2.38  
—
—
—
—
—
—
—
1780  
1945  
2118  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
37  
Table 25—Fan Performance 48HJ007 — Vertical Discharge Units; High-Static Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
967  
1008  
1049  
1091  
1133  
1176  
1218  
1261  
1305  
1348  
1392  
1435  
1479  
0.63  
0.72  
0.82  
0.93  
1.05  
1.18  
1.32  
1.47  
1.63  
1.80  
1.99  
2.19  
2.40  
563  
643  
731  
827  
933  
1047  
1170  
1304  
1448  
1602  
1768  
1945  
2135  
1075  
1112  
1151  
1189  
1229  
1268  
1308  
1349  
1390  
1431  
1472  
1514  
1556  
0.80  
0.91  
1.02  
1.14  
1.26  
1.40  
1.55  
1.72  
1.89  
2.07  
2.27  
2.48  
2.70  
715  
805  
903  
1170  
1205  
1241  
1278  
1315  
1352  
1390  
1429  
1468  
1507  
1547  
1587  
—
0.97  
1.08  
1.20  
1.33  
1.47  
1.62  
1.78  
1.96  
2.14  
2.33  
2.54  
2.76  
—
861  
960  
1255  
1289  
1323  
1358  
1393  
1429  
1466  
1503  
1540  
1578  
1616  
—
1.13  
1.25  
1.38  
1.52  
1.67  
1.84  
2.01  
2.19  
2.38  
2.59  
2.81  
—
1002  
1111  
1228  
1353  
1487  
1630  
1782  
1945  
2117  
2301  
2495  
—
1333  
1366  
1399  
1433  
1467  
1501  
1537  
1572  
1608  
1645  
—
1.28  
1.42  
1.56  
1.71  
1.87  
2.04  
2.23  
2.42  
2.62  
2.84  
—
1139  
1258  
1384  
1519  
1662  
1815  
1977  
2149  
2331  
2524  
—
1068  
1183  
1308  
1441  
1584  
1736  
1900  
2073  
2258  
2455  
—
1008  
1123  
1247  
1380  
1523  
1677  
1841  
2016  
2203  
2402  
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
1406  
1438  
1470  
1502  
1535  
1569  
1603  
1638  
1673  
—
1.43  
1.58  
1.73  
1.89  
2.06  
2.25  
2.44  
2.64  
2.86  
—
1273  
1401  
1537  
1681  
1834  
1996  
2167  
2349  
2541  
—
1475  
1505  
1537  
1568  
1600  
1633  
1666  
1700  
—
—
—
—
—
1.58  
1.73  
1.90  
2.07  
2.25  
2.45  
2.65  
2.87  
—
—
—
—
—
1403  
1541  
1686  
1840  
2002  
2174  
2355  
2546  
—
—
—
—
—
1540  
1569  
1600  
1631  
1662  
1694  
1727  
—
—
—
—
—
1.72  
1.89  
2.06  
2.25  
2.44  
2.64  
2.86  
—
—
—
—
—
1531  
1678  
1833  
1996  
2167  
2348  
2539  
—
—
—
—
—
1601  
1630  
1660  
1690  
1721  
1752  
—
—
—
—
—
1.87  
2.04  
2.23  
2.42  
2.62  
2.84  
—
—
—
—
—
1657  
1813  
1977  
2149  
2330  
2520  
—
—
—
—
—
1660  
1689  
1718  
1747  
1778  
—
—
—
—
—
2.00  
2.19  
2.38  
2.59  
2.80  
—
—
—
—
—
1780  
1945  
2118  
2300  
2490  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.90.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
Table 26—Fan Performance 48HE003 — Horizontal Discharge Units; Standard Motor (Belt Drive)**  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
(Cfm)  
0.1  
Rpm  
0.2  
Rpm  
0.4  
Rpm  
0.6  
Rpm  
0.8  
Rpm  
1.0  
Bhp  
Bhp  
Bhp  
Bhp  
Bhp  
Rpm  
868  
892  
927  
947  
971  
Bhp  
0.37  
0.41  
0.47  
0.53  
0.58  
600  
700  
490  
519  
537  
560  
589  
0.08  
0.09  
0.1  
0.13  
0.15  
521  
557  
582  
610  
640  
0.08  
0.09  
0.12  
0.14  
0.16  
597  
623  
650  
681  
707  
0.14  
0.16  
0.19  
0.22  
0.26  
703  
729  
751  
783  
808  
0.21  
0.24  
0.27  
0.32  
0.36  
788  
816  
845  
870  
894  
0.29  
0.32  
0.37  
0.42  
0.47  
800  
900  
1000  
38  
Table 27—Fan Performance 48HJ004, 48HE004 — Horizontal Discharge Units; Standard Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
553  
582  
612  
643  
675  
707  
740  
0.14  
0.16  
0.20  
0.23  
0.28  
0.33  
0.38  
134  
163  
196  
234  
277  
326  
382  
681  
707  
734  
762  
790  
819  
849  
0.22  
0.26  
0.30  
0.34  
0.40  
0.45  
0.52  
221  
257  
297  
343  
394  
452  
515  
782  
807  
833  
859  
886  
913  
941  
0.32  
0.36  
0.41  
0.46  
0.52  
0.58  
0.66  
316  
358  
405  
458  
517  
581  
653  
870  
894  
919  
944  
969  
996  
1023  
0.42  
0.47  
0.52  
0.58  
0.65  
0.72  
0.80  
417  
466  
519  
579  
644  
716  
795  
948  
971  
995  
1020  
1044  
1070  
1096  
0.53  
0.58  
0.64  
0.71  
0.78  
0.86  
0.95  
526  
580  
639  
705  
777  
855  
941  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
1019  
1042  
1065  
1089  
1113  
1138  
1163  
0.64  
0.70  
0.77  
0.84  
0.92  
1.01  
1.10  
640  
700  
765  
837  
915  
1000  
1092  
1084  
1107  
1130  
1153  
1177  
1201  
—
0.76  
0.83  
0.90  
0.98  
1.06  
1.15  
—
760  
825  
896  
974  
1058  
1149  
—
1146  
1168  
1190  
1213  
—
—
—
0.89  
0.96  
1.04  
1.12  
—
—
—
885  
956  
1032  
1115  
—
—
—
1203  
1225  
1247  
—
—
—
1.02  
1.10  
1.18  
—
—
—
1016  
1091  
1173  
—
—
—
1258  
—
—
—
—
—
—
1.16  
—
—
—
—
—
—
1152  
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 1.20.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 680 to 1044 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
Table 28—Fan Performance 48HJ004, 48HE004 — Horizontal Discharge Units; High-Static Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
553  
582  
612  
643  
675  
707  
740  
0.14  
0.16  
0.20  
0.23  
0.28  
0.33  
0.38  
134  
163  
196  
234  
277  
326  
382  
681  
707  
734  
762  
790  
819  
849  
0.22  
0.26  
0.30  
0.34  
0.40  
0.45  
0.52  
221  
257  
297  
343  
394  
452  
515  
782  
807  
833  
859  
886  
913  
941  
0.32  
0.36  
0.41  
0.46  
0.52  
0.58  
0.66  
316  
358  
405  
458  
517  
581  
653  
870  
894  
919  
944  
969  
996  
1023  
0.42  
0.47  
0.52  
0.58  
0.65  
0.72  
0.80  
417  
466  
519  
579  
644  
716  
795  
948  
971  
995  
1020  
1044  
1070  
1096  
0.53  
0.58  
0.64  
0.71  
0.78  
0.86  
0.95  
526  
580  
639  
705  
777  
855  
941  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
900  
1000  
1100  
1200  
1300  
1400  
1500  
1019  
1042  
1065  
1089  
1113  
1138  
1163  
0.64  
0.70  
0.77  
0.84  
0.92  
1.01  
1.10  
640  
700  
765  
837  
915  
1000  
1092  
1084  
1107  
1130  
1153  
1177  
1201  
1226  
0.76  
0.83  
0.90  
0.98  
1.06  
1.15  
1.25  
760  
825  
896  
1146  
1168  
1190  
1213  
1237  
1261  
1285  
0.89  
0.96  
1.04  
1.12  
1.21  
1.31  
1.41  
885  
956  
1032  
1115  
1205  
1303  
1407  
1203  
1225  
1247  
1270  
1293  
1317  
1341  
1.02  
1.10  
1.18  
1.27  
1.36  
1.47  
1.58  
1016  
1091  
1173  
1262  
1358  
1461  
1571  
1258  
1279  
1301  
1324  
1347  
1370  
1394  
1.16  
1.24  
1.33  
1.42  
1.52  
1.63  
1.75  
1152  
1232  
1319  
1413  
1514  
1623  
1740  
974  
1058  
1149  
1247  
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
39  
Table 29—Fan Performance 48HJ005, 48HE005 — Horizontal Discharge Units; Standard Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
643  
675  
707  
740  
773  
807  
841  
875  
910  
0.23  
0.28  
0.33  
0.38  
0.45  
0.52  
0.59  
0.68  
0.77  
234  
277  
326  
382  
444  
513  
589  
674  
767  
762  
790  
819  
849  
879  
910  
942  
974  
1006  
0.34  
0.40  
0.45  
0.52  
0.59  
0.67  
0.75  
0.85  
0.95  
343  
394  
452  
515  
586  
663  
749  
842  
944  
859  
886  
913  
941  
970  
0.46  
0.52  
0.58  
0.66  
0.73  
0.82  
0.91  
1.02  
1.13  
458  
517  
581  
653  
731  
817  
910  
1012  
1122  
944  
969  
996  
1023  
1050  
1078  
1106  
1135  
—
0.58  
0.65  
0.72  
0.80  
0.88  
0.98  
1.08  
1.19  
—
579  
644  
716  
795  
880  
973  
1074  
1184  
—
1020  
1044  
1070  
1096  
1123  
1150  
—
0.71  
0.78  
0.86  
0.95  
1.04  
1.14  
—
705  
777  
855  
941  
1034  
1134  
—
999  
1029  
1059  
1090  
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
1089  
1113  
1138  
1163  
1189  
—
—
—
—
0.84  
0.92  
1.01  
1.10  
1.20  
—
—
—
—
837  
915  
1000  
1092  
1191  
—
—
—
—
1153  
1177  
1201  
—
—
—
—
—
—
0.98  
1.06  
1.15  
—
—
—
—
—
—
974  
1058  
1149  
—
—
—
—
—
—
1213  
—
—
—
—
—
—
—
—
1.12  
—
—
—
—
—
—
—
—
1115  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 1.20.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 770 to 1185 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
Table 30—Fan Performance 48HJ005, 48HE005 — Horizontal Discharge Units; High-Static Motor  
(Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
705  
777  
855  
941  
1034  
1134  
1242  
1360  
1485  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
643  
675  
707  
740  
773  
807  
841  
875  
910  
0.23  
0.28  
0.33  
0.38  
0.45  
0.52  
0.59  
0.68  
0.77  
234  
277  
326  
382  
444  
513  
589  
674  
767  
762  
790  
819  
849  
879  
910  
942  
974  
1006  
0.34  
0.40  
0.45  
0.52  
0.59  
0.67  
0.75  
0.85  
0.95  
343  
394  
452  
515  
586  
663  
749  
842  
944  
859  
886  
913  
941  
970  
0.46  
0.52  
0.58  
0.66  
0.73  
0.82  
0.91  
1.02  
1.13  
458  
517  
581  
653  
731  
817  
910  
1012  
1122  
944  
969  
996  
1023  
1050  
1078  
1106  
1135  
1165  
0.58  
0.65  
0.72  
0.80  
0.88  
0.98  
1.08  
1.19  
1.31  
579  
644  
716  
795  
880  
1020  
1044  
1070  
1096  
1123  
1150  
1177  
1205  
1234  
0.71  
0.78  
0.86  
0.95  
1.04  
1.14  
1.25  
1.37  
1.49  
999  
973  
1029  
1059  
1090  
1074  
1184  
1302  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1200  
1300  
1400  
1500  
1600  
1700  
1800  
1900  
2000  
1089  
1113  
1138  
1163  
1189  
1216  
1242  
1270  
1297  
0.84  
0.92  
1.01  
1.10  
1.20  
1.31  
1.42  
1.55  
1.68  
837  
915  
1153  
1177  
1201  
1226  
1252  
1277  
1303  
1330  
1357  
0.98  
1.06  
1.15  
1.25  
1.36  
1.48  
1.60  
1.73  
1.87  
974  
1058  
1149  
1247  
1353  
1468  
1590  
1721  
1862  
1213  
1237  
1261  
1285  
1310  
1335  
1361  
1387  
1414  
1.12  
1.21  
1.31  
1.41  
1.53  
1.65  
1.78  
1.92  
2.07  
1115  
1205  
1303  
1407  
1520  
1640  
1770  
1908  
2055  
1270  
1293  
1317  
1341  
1365  
1390  
1415  
1441  
1467  
1.27  
1.36  
1.47  
1.58  
1.70  
1.83  
1.96  
2.11  
2.26  
1262  
1358  
1461  
1571  
1690  
1817  
1953  
2098  
2252  
1324  
1347  
1370  
1394  
1418  
1442  
1467  
1493  
—
1.42  
1.52  
1.63  
1.75  
1.87  
2.01  
2.15  
2.30  
—
1413  
1514  
1623  
1740  
1865  
1998  
2140  
2292  
—
1000  
1092  
1191  
1299  
1414  
1538  
1672  
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
40  
Table 31—Fan Performance 48HJ006, 48HE006 Single-Phase — Horizontal Discharge Units;  
Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
800  
839  
879  
919  
960  
1001  
1043  
1085  
1127  
—
0.39  
0.46  
0.54  
0.63  
0.73  
0.84  
0.96  
1.09  
1.23  
—
350  
412  
483  
561  
648  
744  
850  
966  
1092  
—
904  
938  
974  
1010  
1047  
1085  
1123  
1162  
—
0.49  
0.57  
0.65  
0.75  
0.85  
0.96  
1.09  
1.22  
—
438  
505  
580  
663  
754  
855  
965  
1086  
—
999  
1030  
1062  
1095  
1129  
1163  
1199  
—
0.60  
0.68  
0.77  
0.87  
0.98  
1.09  
1.22  
—
535  
605  
684  
771  
867  
972  
1086  
—
1087  
1115  
1144  
1174  
1206  
1238  
—
—
—
—
—
0.72  
0.80  
0.90  
1.00  
1.11  
1.23  
—
—
—
—
—
640  
714  
796  
886  
986  
1095  
—
—
—
—
—
1169  
1195  
1221  
1250  
1279  
—
—
—
—
—
0.85  
0.93  
1.03  
1.14  
1.25  
—
—
—
—
—
753  
829  
914  
1008  
1111  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1247  
1270  
1295  
1321  
—
—
—
—
—
—
—
0.98  
1.07  
1.17  
1.28  
—
—
—
—
—
—
—
873  
952  
1040  
1137  
—
—
—
—
—
—
—
1320  
1342  
—
—
—
—
—
—
—
1.13  
1.22  
—
—
—
—
—
—
—
1002  
1083  
—
—
—
—
—
—
—
1390  
—
—
—
—
—
—
—
—
1.28  
—
—
—
—
—
—
—
—
—
—
1137  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 1.30.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
41  
Table 32—Fan Performance 48HJ006, 48HE006 Three-Phase — Horizontal Discharge Units;  
Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
753  
829  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
800  
839  
879  
919  
960  
1001  
1043  
1085  
1127  
1169  
1212  
0.39  
0.46  
0.54  
0.63  
0.73  
0.84  
0.96  
1.09  
1.23  
1.38  
1.55  
350  
412  
483  
561  
648  
744  
850  
966  
904  
938  
974  
0.49  
0.57  
0.65  
0.75  
0.85  
0.96  
1.09  
1.22  
1.37  
1.53  
1.70  
438  
505  
580  
663  
754  
855  
965  
1086  
1217  
1359  
1513  
999  
1030  
1062  
1095  
1129  
1163  
1199  
1235  
1272  
1310  
1348  
0.60  
0.68  
0.77  
0.87  
0.98  
1.09  
1.22  
1.36  
1.52  
1.68  
1.86  
535  
605  
684  
771  
867  
1087  
1115  
1144  
1174  
1206  
1238  
1271  
1305  
1340  
1375  
1412  
0.72  
0.80  
0.90  
1.00  
1.11  
1.23  
1.37  
1.51  
1.67  
1.84  
2.02  
640  
714  
796  
886  
986  
1095  
1213  
1342  
1482  
1633  
1796  
1169  
1195  
1221  
1250  
1279  
1309  
1340  
1372  
1405  
1439  
1473  
0.85  
0.93  
1.03  
1.14  
1.25  
1.38  
1.52  
1.67  
1.83  
2.00  
2.19  
914  
1010  
1047  
1085  
1123  
1162  
1201  
1241  
1281  
1008  
1111  
1224  
1346  
1479  
1623  
1778  
1945  
972  
1086  
1211  
1347  
1493  
1652  
1092  
1229  
1378  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1247  
1270  
1295  
1321  
1348  
1377  
1406  
1437  
1468  
1500  
1533  
0.98  
1.07  
1.17  
1.28  
1.40  
1.53  
1.67  
1.83  
1.99  
2.17  
2.36  
873  
952  
1320  
1342  
1365  
1390  
1415  
1442  
1470  
1499  
1529  
1559  
—
1.13  
1.22  
1.32  
1.43  
1.56  
1.69  
1.83  
1.99  
2.16  
2.35  
—
1002  
1083  
1173  
1273  
1381  
1500  
1629  
1769  
1920  
2083  
—
1390  
1411  
1432  
1455  
1479  
1505  
1531  
1559  
1587  
—
1.28  
1.37  
1.48  
1.59  
1.72  
1.86  
2.00  
2.16  
2.34  
—
1137  
1221  
1313  
1415  
1526  
1648  
1780  
1923  
2077  
—
1457  
1476  
1497  
1518  
1541  
1565  
1591  
1617  
—
1.44  
1.54  
1.64  
1.76  
1.89  
2.03  
2.18  
2.34  
—
1280  
1365  
1459  
1563  
1677  
1801  
1936  
2082  
—
1522  
1540  
1559  
1579  
1601  
1624  
1648  
—
1.61  
1.71  
1.82  
1.93  
2.06  
2.21  
2.36  
—
1430  
1517  
1612  
1718  
1834  
1961  
2098  
—
1040  
1137  
1243  
1359  
1485  
1621  
1769  
1928  
2098  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
Table 33—Fan Performance 48HJ006, 48HE006 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
753  
829  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
800  
839  
879  
919  
960  
1001  
1043  
1085  
1127  
1169  
1212  
0.39  
0.46  
0.54  
0.63  
0.73  
0.84  
0.96  
1.09  
1.23  
1.38  
1.55  
350  
412  
483  
561  
648  
744  
850  
966  
904  
938  
974  
0.49  
0.57  
0.65  
0.75  
0.85  
0.96  
1.09  
1.22  
1.37  
1.53  
1.70  
438  
505  
580  
663  
754  
855  
965  
1086  
1217  
1359  
1513  
999  
1030  
1062  
1095  
1129  
1163  
1199  
1235  
1272  
1310  
1348  
0.60  
0.68  
0.77  
0.87  
0.98  
1.09  
1.22  
1.36  
1.52  
1.68  
1.86  
535  
605  
684  
771  
867  
1087  
1115  
1144  
1174  
1206  
1238  
1271  
1305  
1340  
1375  
1412  
0.72  
0.80  
0.90  
1.00  
1.11  
1.23  
1.37  
1.51  
1.67  
1.84  
2.02  
640  
714  
796  
886  
986  
1095  
1213  
1342  
1482  
1633  
1796  
1169  
1195  
1221  
1250  
1279  
1309  
1340  
1372  
1405  
1439  
1473  
0.85  
0.93  
1.03  
1.14  
1.25  
1.38  
1.52  
1.67  
1.83  
2.00  
2.19  
914  
1010  
1047  
1085  
1123  
1162  
1201  
1241  
1281  
1008  
1111  
1224  
1346  
1479  
1623  
1778  
1945  
972  
1086  
1211  
1347  
1493  
1652  
1092  
1229  
1378  
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1500  
1600  
1700  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
1247  
1270  
1295  
1321  
1348  
1377  
1406  
1437  
1468  
1500  
1533  
0.98  
1.07  
1.17  
1.28  
1.40  
1.53  
1.67  
1.83  
1.99  
2.17  
2.36  
873  
952  
1320  
1342  
1365  
1390  
1415  
1442  
1470  
1499  
1529  
1559  
1591  
1.13  
1.22  
1.32  
1.43  
1.56  
1.69  
1.83  
1.99  
2.16  
2.35  
2.54  
1002  
1083  
1173  
1273  
1381  
1500  
1629  
1769  
1920  
2083  
2257  
1390  
1411  
1432  
1455  
1479  
1505  
1531  
1559  
1587  
1616  
1647  
1.28  
1.37  
1.48  
1.59  
1.72  
1.86  
2.00  
2.16  
2.34  
2.53  
2.73  
1137  
1221  
1313  
1415  
1526  
1648  
1780  
1923  
2077  
2243  
2421  
1457  
1476  
1497  
1518  
1541  
1565  
1591  
1617  
1644  
1672  
—
1.44  
1.54  
1.64  
1.76  
1.89  
2.03  
2.18  
2.34  
2.52  
2.71  
—
1280  
1365  
1459  
1563  
1677  
1801  
1936  
2082  
2239  
2408  
—
1522  
1540  
1559  
1579  
1601  
1624  
1648  
1673  
1699  
1726  
—
1.61  
1.71  
1.82  
1.93  
2.06  
2.21  
2.36  
2.53  
2.71  
2.90  
—
1430  
1517  
1612  
1718  
1834  
1961  
2098  
2246  
2406  
2579  
—
1040  
1137  
1243  
1359  
1485  
1621  
1769  
1928  
2098  
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.90.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
42  
Table 34—Fan Performance 48HJ007 — Horizontal Discharge Units; Standard Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
913  
952  
992  
0.64  
0.73  
0.84  
0.95  
1.07  
1.21  
1.36  
1.51  
1.69  
1.87  
2.07  
2.28  
—
569  
652  
744  
844  
954  
1074  
1204  
1345  
1497  
1660  
1835  
2023  
—
1010  
1046  
1083  
1120  
1158  
1196  
1234  
1273  
1312  
1352  
1392  
—
0.80  
0.91  
1.02  
1.14  
1.27  
1.41  
1.57  
1.73  
1.91  
2.10  
2.31  
—
715  
805  
903  
1098  
1131  
1166  
1200  
1236  
1272  
1308  
1345  
1382  
1420  
—
0.98  
1.09  
1.21  
1.33  
1.47  
1.62  
1.78  
1.96  
2.14  
2.34  
—
869  
965  
1178  
1210  
1242  
1275  
1308  
1343  
1377  
1412  
1448  
—
1.16  
1.28  
1.40  
1.54  
1.68  
1.84  
2.01  
2.19  
2.38  
—
1032  
1134  
1245  
1365  
1495  
1634  
1784  
1945  
2117  
—
1252  
1282  
1313  
1345  
1377  
1409  
1443  
—
—
—
—
—
1.35  
1.48  
1.61  
1.75  
1.90  
2.07  
2.24  
—
—
—
—
—
1203  
1311  
1427  
1553  
1689  
1834  
1990  
—
—
—
—
—
1070  
1184  
1307  
1440  
1584  
1738  
1904  
2081  
—
1032  
1073  
1114  
1155  
1196  
1238  
1280  
1322  
1364  
—
1010  
1127  
1254  
1391  
1538  
1697  
1867  
2050  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
1322  
1351  
1380  
1411  
1441  
1473  
—
—
—
—
—
1.56  
1.68  
1.82  
1.97  
2.13  
2.30  
—
—
—
—
—
1382  
1495  
1617  
1748  
1890  
2041  
—
—
—
—
—
1388  
1416  
1444  
1473  
1503  
—
—
—
—
—
1.77  
1.90  
2.04  
2.20  
2.36  
—
—
—
—
—
1568  
1686  
1814  
1950  
2097  
—
—
—
—
—
1451  
1477  
1505  
—
—
—
—
—
—
—
1.98  
2.12  
2.27  
—
—
—
—
—
—
—
1762  
1885  
2017  
—
—
—
—
—
—
—
1510  
1536  
—
—
—
—
—
—
—
—
—
—
—
2.21  
2.35  
—
—
—
—
—
—
—
—
—
—
—
1962  
2090  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.40.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
43  
Table 35—Fan Performance 48HJ007 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*  
EXTERNAL STATIC PRESSURE (in. wg)  
AIRFLOW  
CFM  
0.2  
Bhp  
0.4  
Bhp  
0.6  
0.8  
Bhp  
1.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
913  
952  
992  
0.64  
0.73  
0.84  
0.95  
1.07  
1.21  
1.36  
1.51  
1.69  
1.87  
2.07  
2.28  
2.50  
569  
652  
744  
844  
954  
1074  
1204  
1345  
1497  
1660  
1835  
2023  
2224  
1010  
1046  
1083  
1120  
1158  
1196  
1234  
1273  
1312  
1352  
1392  
1432  
1472  
0.80  
0.91  
1.02  
1.14  
1.27  
1.41  
1.57  
1.73  
1.91  
2.10  
2.31  
2.53  
2.76  
715  
805  
903  
1098  
1131  
1166  
1200  
1236  
1272  
1308  
1345  
1382  
1420  
1458  
1496  
—
0.98  
1.09  
1.21  
1.33  
1.47  
1.62  
1.78  
1.96  
2.14  
2.34  
2.56  
2.78  
—
869  
965  
1178  
1210  
1242  
1275  
1308  
1343  
1377  
1412  
1448  
1484  
1521  
—
1.16  
1.28  
1.40  
1.54  
1.68  
1.84  
2.01  
2.19  
2.38  
2.59  
2.81  
—
1032  
1134  
1245  
1365  
1495  
1634  
1784  
1945  
2117  
2300  
2496  
—
1252  
1282  
1313  
1345  
1377  
1409  
1443  
1477  
1511  
1546  
—
1.35  
1.48  
1.61  
1.75  
1.90  
2.07  
2.24  
2.43  
2.63  
2.84  
—
1203  
1311  
1427  
1553  
1689  
1834  
1990  
2157  
2335  
2526  
—
1070  
1184  
1307  
1440  
1584  
1738  
1904  
2081  
2270  
2472  
—
1032  
1073  
1114  
1155  
1196  
1238  
1280  
1322  
1364  
1406  
1010  
1127  
1254  
1391  
1538  
1697  
1867  
2050  
2245  
2452  
—
—
—
—
—
—
—
—
—
EXTERNAL STATIC PRESSURE (in. wg)  
1.6  
AIRFLOW  
CFM  
1.2  
Bhp  
1.4  
Bhp  
1.8  
Bhp  
2.0  
Bhp  
Rpm  
Watts  
Rpm  
Watts Rpm  
Bhp  
Watts  
Rpm  
Watts  
Rpm  
Watts  
1800  
1900  
2000  
2100  
2200  
2300  
2400  
2500  
2600  
2700  
2800  
2900  
3000  
1322  
1351  
1380  
1411  
1441  
1473  
1505  
1537  
1571  
—
1.56  
1.68  
1.82  
1.97  
2.13  
2.30  
2.48  
2.68  
2.88  
—
1382  
1495  
1617  
1748  
1890  
2041  
2203  
2376  
2560  
—
1388  
1416  
1444  
1473  
1503  
1533  
1564  
—
—
—
—
—
1.77  
1.90  
2.04  
2.20  
2.36  
2.54  
2.73  
—
—
—
—
—
1568  
1686  
1814  
1950  
2097  
2254  
2422  
—
—
—
—
—
1451  
1477  
1505  
1533  
1562  
1591  
—
—
—
—
—
1.98  
2.12  
2.27  
2.43  
2.60  
2.79  
—
—
—
—
—
1762  
1885  
2017  
2159  
2311  
2474  
—
—
—
—
—
1510  
1536  
1563  
1590  
1618  
—
—
—
—
—
2.21  
2.35  
2.51  
2.67  
2.85  
—
—
—
—
—
1962  
2090  
2227  
2374  
2532  
—
—
—
—
—
1568  
1593  
1619  
—
—
—
—
—
—
—
2.44  
2.59  
2.75  
—
—
—
—
—
—
—
2169  
2302  
2443  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NOTES:  
LEGEND  
1. Grey cells indicate field-supplied drive is required.  
2. Maximum continuous bhp is 2.90.  
Bhp — Brake Horsepower  
Watts — Input Watts to Motor  
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.  
3. See general fan performance notes.  
Table 36—Accessory/FIOP EconoMi$er IV and EconoMi$er2 Static Pressure* (in. wg)  
CFM  
COMPONENT  
1250  
0.045  
—
1500  
0.065  
—
1750  
0.08  
0.1  
2000  
0.12  
0.125  
2250  
0.145  
0.15  
2500  
0.175  
0.18  
2750  
0.22  
0.225  
3000  
0.255  
0.275  
Vertical EconoMi$er2 and EconoMi$er IV  
Horizontal EconoMi$er2 and EconoMi$er IV  
LEGEND  
FIOP  
—
Factory-Installed Option  
*The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should be used in conjunction with the Fan Perfor-  
mance tables to determine indoor blower rpm and watts.  
44  
d. Make sure that all tools and miscellaneous loose parts  
have been removed.  
PRE-START-UP  
START-UP  
Step 1 —Unit Preparation  
Make sure that the unit has been installed in accordance with  
installation instructions and applicable codes.  
!
WARNING  
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could result in personal  
injury, death and/or property damage:  
Step 2 —Gas Piping  
1. Follow recognized safety practices and wear protective  
goggles when checking or servicing a refrigerant system.  
2. Do not operate the compressor or provide any electric  
power to the unit unless the compressor terminal cover is  
in place and secured.  
3. Do not remove the compressor terminal cover until all  
electrical sources are disconnected and tagged with lockout  
tags.  
Check gas piping for leaks.  
!
WARNING  
ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could cause personal  
injury or death.  
4. Relieve all pressure from the system before touching or  
Disconnect gas piping from unit when leak testing at  
disturbing anything inside the terminal box if  
a
1
1
pressure greater than  
/
2
psig. Pressures greater than  
/
2
refrigerant leak is suspected around the compressor  
terminals. Use accepted methods to recover the  
refrigerant.  
psig will cause gas valve damage resulting in hazardous  
condition. If gas valve is subjected to pressure greater than  
1
/
2
psig, it must be replaced before use. When pressure  
5. Never attempt to repair a soldered connection while the  
refrigerant system is under pressure.  
6. Do not use a torch to remove any component. The  
system contains oil and refrigerant under pressure. To  
remove a component, wear protective goggles and proceed  
as follows:  
1
testing field- supplied gas piping at pressures of / psig  
2
or less, a unit connected to such piping must be isolated by  
manually closing the gas valve.  
Step 3 —Return--Air Filters  
Make sure the correct filters are installed in the unit (See Table 1  
or 2). Do not operate the unit without return-air filters.  
Step 4 —Outdoor--Air Inlet Screens  
Outdoor-air inlet screen(s) must be in place before operating the  
unit.  
a. Shut off electrical power to the unit and tag  
disconnect.  
b. Recover refrigerant to relieve all pressure  
from the system using both high-pressure  
and low-pressure ports.  
c. Cut component connection tubing with a  
tubing cutter, and remove the component  
from the unit.  
Step 5 —Compressor Mounting  
d. Carefully unsweat the remaining tubing  
stubs when necessary. Oil can ignite when  
exposed to a torch flame.  
Compressors are internally spring mounted. Do not loosen or  
remove the compressor holddown bolts.  
Step 6 —Internal Wiring  
Check all electrical connections in unit control boxes; tighten  
them as required.  
Proceed as follows to inspect and prepare the unit for initial  
start-up:  
Step 7 —Refrigerant Service Ports  
Each unit system has 4 Schrader--type service ports: one on the  
suction line, one on the liquid line, and 2 on the compressor  
discharge line. Be sure that caps on the ports are tight. Two  
additional Schrader valves are located under the high--pressure  
and low--pressure switches, respectively.  
1. Remove all access panels.  
2. Read and follow instructions on all WARNING,  
CAUTION, and INFORMATION labels attached to, or  
shipped with, unit.  
3. Make the following inspections:  
Step 8 —High Flow Refrigerant Valves  
a. Inspect for shipping and handling damages such as  
broken lines, loose parts, or disconnected wires, etc.  
b. Inspect for oil at all refrigerant tubing connections and on  
unit base. Detecting oil generally indicates a refrigerant  
leak. Leak-test all refrigerant tubing connections using  
electronic leak detector, halide torch, or liquid-soap  
solution.  
Two high flow valves are located on the hot gas tube coming out  
of the compressor and the suction tube going into the compressor.  
Large black plastic caps identify these valves. These valves have  
O--rings inside which screw the cap onto a brass body to prevent  
leaks. No field access to these valves is available at this time.  
Ensure the plastic caps remain on the valves and are tight or the  
possibility of refrigerant leakage could occur.  
c. Inspect all field-wiring and factory-wiring connections.  
Be sure that connections are completed and tight. Be sure  
that wires are not in contact with refrigerant tubing or  
sharp edges.  
d. Inspect coil fins. If damaged during shipping and  
handling, carefully straighten fins with a fin comb.  
Step 9 —Compressor Rotation  
On 3-phase units be certain that the compressor is rotating in the  
proper direction. To determine whether or not compressor is  
rotating in the proper direction:  
1. Connect the service gauges to suction and discharge  
pressure fittings.  
2. Energize the compressor.  
4. Verify the following conditions:  
a. Make sure that condenser-fan blade are correctly  
positioned in fan orifice. See Condenser-Fan Adjustment  
section for more details.  
3. The suction pressure should drop and the discharge  
pressure should rise, as is normal on any start-up.  
If the suction pressure does not drop and the discharge pressure  
does not rise to normal levels:  
b. Make sure that air filter(s) is in place.  
c. Make sure that condensate drain trap is filled with water  
to ensure proper drainage.  
1. Note that the indoor fan (006 and 007 three-phase units  
only) is probably also rotating in the wrong direction.  
45  
2. Turn off power to the unit and tag disconnect.  
3. Reverse any two of the unit power leads.  
Table 38—Altitude Compensation* —  
48HJ004-006, 48HE003--006 Low NOx Units  
4. Turn on power to the unit and energize the compressor.  
60,000 AND  
120,000 BTUH  
90,000 BTUH  
The suction and discharge pressure levels should now move to  
their normal start-up levels.  
NOMINAL INPUT  
NOMINAL INPUT  
ELEVATION  
(ft)  
Natural  
Liquid  
Propane  
Orifice  
Size†  
Natural  
Liquid  
Propane  
Orifice  
Size†  
NOTE: When the compressor is rotating in the wrong direction,  
the unit makes more noise and does not provide cooling.  
Gas  
Gas  
Orifice  
Size†  
Orifice  
Size  
Step 10 —Cooling  
0-2,000  
2,000  
3,000  
4,000  
5,000  
6,000  
7,000  
8,000  
9,000  
10,000  
11,000  
12,000  
13,000  
14,000  
38  
40  
41  
42  
43  
43  
44  
45  
46  
47  
48  
49  
50  
51  
45  
47  
48  
49  
49  
50  
50  
51  
52  
52  
53  
53  
54  
54  
32  
33  
35  
36  
37  
38  
39  
41  
42  
43  
44  
44  
46  
47  
42  
43  
43  
44  
45  
45  
46  
47  
48  
49  
50  
51  
52  
52  
Set the space thermostat to the OFF position. Set the system  
selector switch at COOL position and the fan switch at AUTO  
position. Adjust the thermostat to a setting below room  
temperature. The compressor starts when contactor closes.  
Check the unit charge. Refer to Refrigerant Charge section.  
Reset the thermostat at a position above room temperature. The  
compressor will shut off. Evaporator fan will shut off after a  
30--second delay.  
To Shut Off Unit -- Set the system selector switch at OFF  
position. Resetting the thermostat at a position above room  
temperature shuts off the unit temporarily until the space  
temperature exceeds the thermostat setting. Units are equipped  
with a Cycle-LOC™ protection device. The unit shuts down on  
any safety trip and remains off; an indicator light on the  
thermostat comes on. Check the reason for the safety trip.  
*As the height above sea level increases, there is less oxygen per cubic  
foot of air. Therefore, the input rate should be reduced at higher alti-  
tudes.  
†Orifices are available through your local Carrier distributor.  
Step 12 —Heating  
Step 11 —Main Burners  
Main burners are factory set and should require no adjustment.  
1. Purge gas supply line of air by opening union ahead of the  
gas valve. If gas odor is detected, tighten union and wait 5  
minutes before proceeding.  
TO CHECK ignition of main burners and heating controls, move  
thermostat set point above room temperature and verify that the  
burners light and evaporator fan is energized. Check heating  
effect, then lower the thermostat setting below the room  
temperature and verify that the burners and evaporator fan turn  
off.  
2. Turn on electrical supply and manual gas valve.  
3. Set system switch selector at HEAT position and fan  
switch at AUTO or ON position. Set heating temperature  
lever above room temperature.  
Refer to Tables 37 and 38 for the correct orifice to use at high  
altitudes.  
4. The induced-draft motor will start.  
5. After a call for heating, the main burners should light  
within 5 seconds. If the burner does not light, then there is  
a 22-second delay before another 5-second try. If the  
burner still does not light, the time delay is repeated. If the  
burner does not light within 15 minutes, there is a lockout.  
To reset the control, break the 24 v power to W1.  
Table 37—Altitude Compensation*  
48HJ004--007, 48HE003--006 Standard Units  
72,000 AND  
150,000 BTUH  
115,000 BTUH  
NOMINAL INPUT  
NOMINAL INPUT  
ELEVATION  
6. The evaporator-fan motor will turn on 45 seconds after  
burner ignition.  
7. The evaporator-fan motor will turn off in 45 seconds after  
the thermostat temperature is satisfied.  
8. Adjust airflow to obtain a temperature rise within the  
range specified on the unit nameplate.  
Natural  
Liquid  
Propane  
Orifice  
Size†  
Natural  
Liquid  
Propane  
Orifice  
Size†  
(ft)  
Gas  
Gas  
Orifice  
Size†  
Orifice  
Size†  
0-2,000  
2,000  
3,000  
4,000  
5,000  
6,000  
7,000  
8,000  
9,000  
10,000  
11,000  
12,000  
13,000  
14,000  
33  
36  
36  
37  
38  
40  
41  
42  
43  
44  
45  
46  
47  
48  
43  
44  
45  
45  
46  
47  
48  
49  
50  
50  
51  
52  
52  
53  
30  
31  
31  
32  
32  
34  
35  
36  
37  
39  
41  
42  
43  
44  
37  
39  
40  
41  
42  
43  
43  
44  
45  
46  
47  
48  
49  
50  
NOTE: The default value for the evaporator-fan motor on/off  
delay is 45 seconds. The Integrated Gas Unit Controller (IGC)  
modifies this value when abnormal limit switch cycles occur.  
Based upon unit operating conditions, the on delay can be  
reduced to 0 seconds and the off delay can be extended to  
180  
seconds. When one flash of the LED (light-emitting diode) is  
observed, the evaporator-fan on/off delay has been modified.  
If the limit switch trips at the start of the heating cycle during the  
evaporator on delay, the time period of the on delay for the next  
cycle will be 5 seconds less than the time at which the switch  
tripped. (Example: If the limit switch trips at 30 seconds, the  
evaporator-fan on delay for the next cycle will occur at 25  
seconds.) To prevent short-cycling, a 5-second reduction will  
only occur if a minimum of 10 minutes has elapsed since the last  
call for heating.  
*As the height above sea level increases, there is less oxygen per cubic  
foot of air. Therefore, heat input rate should be reduced at higher alti-  
tudes.  
†Orifices available through your Carrier distributor.  
The evaporator-fan off delay can also be modified. Once the call  
for heating has ended, there is a 10-minute period during which  
the modification can occur. If the limit switch trips during this  
period, the evaporator-fan off delay will increase by 15 seconds.  
46  
A maximum of 9 trips can occur, extending the evaporator-fan off  
delay to 180 seconds.  
Damper movement from full closed to full open (or vice versa)  
will take between 1--1/2 and 2--1/2 minutes.  
To restore the original default value, reset the power to the unit.  
If free cooling can be used as determined from the appropriate  
changeover command (switch, dry bulb, enthalpy curve,  
differential dry bulb, or differential enthalpy), a call for cooling  
(Y1 closes at the thermostat) will cause the control to modulate  
the dampers open to maintain the supply air temperature set point  
at 50_ to 55_ F.  
To Shut Off Unit —Set system selector switch at off position.  
Resetting heating selector lever below room temperature will  
temporarily shut unit off until space temperature falls below  
thermostat setting.  
Step 13 —Safety Relief  
A soft solder joint at the suction line fitting provides pressure  
relief under abnormal temperature and pressure conditions.  
As the supply air temperature drops below the set point range of  
50_ to 55_ F, the control will modulate the outdoor--air dampers  
closed to maintain the proper supply--air temperature.  
Step 14 —Ventilation (Continuous Fan)  
heating -- units with economi$er iv  
Set fan and system selector switches at ON and OFF positions,  
respectively. Evaporator fan operates continuously to provide  
constant air circulation. When the evaporator--fan selector switch  
is turned to the OFF position, there is a 30--second delay before  
the fan turns off.  
Step 15 —Operating Sequence  
cooling -- units without economizer  
When the room temperature calls for heat, the heating controls are  
energized as described in the Heating, Units Without Economizer  
section. When the thermostat is satisfied, the economizer damper  
moves to the minimum position.  
cooling -- units with economi$er2, premierlinkt CONTROL  
AND A THERMOSTAT  
When free cooling is not available, the compressors will be  
controlled by the PremierLink control in response to the Y1 and  
Y2 inputs from the thermostat.  
When thermostat calls for cooling, terminals G and Y1 are  
energized. The indoor-fan contactor (IFC), reversing valve  
solenoid (RVS) and compressor contactor are energized and  
indoor-fan motor, compressor, and outdoor fan starts. The  
outdoor fan motor runs continuously while unit is cooling.  
The PremierLink control will use the following information to  
determine if free cooling is available:  
S
S
Indoor fan has been on for at least 30 seconds.  
heating -- units without economizer  
The SPT, SAT, and OAT inputs must have valid  
readings.  
When the thermostat calls for heating, terminal W1 is energized.  
To prevent thermostat short--cycling, the unit is locked into the  
Heating mode for at least 1 minute when W1 is energized. The  
induced--draft motor is energized and the burner ignition  
sequence begins. The indoor (evaporator) fan motor (IFM) is  
energized 45 seconds after a flame is ignited. On units equipped  
for two stages of heat, when additional heat is needed, W2 is  
energized and the high--fire solenoid on the main gas valve  
(MGV) is energized. When the thermostat is satisfied and W1 is  
deenergized, the IFM stops after a 45--second time--off delay.  
S
S
S
OAT must be less than 75_F.  
OAT must be less than SPT.  
Enthalpy must be LOW (may be jumpered if an  
enthalpy sensor not available).  
S
Economizer position is NOT forced.  
Pre-cooling occurs when there is no call from the thermostat  
except G. Pre-cooling is defined as the economizer modulates to  
provide 70_F supply air.  
Cooling -- units with economi$er iv  
When free cooling is not available, the compressors will be  
controlled by the zone thermostat. When free cooling is available,  
the outdoor-air damper is modulated by the EconoMi$er IV  
control to provide a 50_ to 55_F supply-air temperature into the  
zone. As the supply-air temperature fluctuates above 55_ or  
below 50_F, the dampers will be modulated (open or close) to  
bring the supply-air temperature back within the set point limits.  
When free cooling is available the PremierLink control will  
control the compressors and economizer to provide a supply-air  
temperature determined to meet the Y1 and Y2 calls from the  
thermostat using the following three routines. The three control  
routines are based on OAT.  
The 3 routines are based on OAT where:  
SASP = Supply Air Set Point  
DXCTLO = Direct Expansion Cooling Lockout Set Point  
PID = Proportional Integral  
Routine 1 (OAT < DXCTLO)  
Integrated EconoMi$er IV operation on single-stage units  
requires a 2-stage thermostat (Y1 and Y2).  
For EconoMi$er IV operation, there must be a thermostat call for  
the fan (G). This will move the damper to its minimum position  
during the occupied mode.  
If the increase in cooling capacity causes the supply--air  
temperature to drop below 45_F, then the outdoor--air damper  
position will be fully closed. If the supply--air temperature  
continues to fall, the outdoor--air damper will close. Control  
returns to normal once the supply--air temperature rises above  
48_F.  
S
Y1 energized – economizer maintains a SASP =  
(SATLO1 + 3).  
S
Y2 energized – economizer maintains a SASP =  
(SATLO2 + 3).  
Routine 2 (DXCTLO < OAT < 68_F)  
S
If only Y1 energized, the economizer maintains a  
If optional power exhaust is installed, as the outdoor--air damper  
opens and closes, the power exhaust fans will be energized and  
deenergized.  
SASP = (SATLO1 + 3).  
S
If SAT > SASP + 5 and economizer position > 80%,  
economizer will go to minimum position for 3 minutes  
or until SAT > 68_F.  
If field--installed accessory CO sensors are connected to the  
2
EconoMi$er IV control, a demand controlled ventilation strategy  
S
S
S
First stage of mechanical cooling will be energized.  
Integrator resets.  
will begin to operate. As the CO level in the zone increases  
2
above the CO set point, the minimum position of the damper  
2
will be increased proportionally. As the CO level decreases  
2
Economizer opens again and controls to current SASP  
after stage one on for 90 seconds.  
because of the increase in fresh air, the outdoor--air damper will  
be proportionally closed. Damper position will follow the higher  
demand condition from DCV mode or free cooling mode.  
S
With Y1 and Y2 energized Economizer maintains an  
SASP = SATLO2 + 3.  
47  
S
S
If SAT > SASP + 5 and economizer position >80%,  
economizer will go to minimum position for 3 minutes  
or until SAT > 68_F.  
TEMPERATURE CONTROL  
75  
74  
If compressor one is on then second stage of  
mechanical cooling will be energized; otherwise the  
first stage will be energized.  
73  
72  
71  
SET POINT  
TEMPERATURE  
S
S
Integrator resets.  
70  
69  
68  
Economizer opens again and controls to SASP after  
stage one on for 90 seconds.  
TIME  
Routine 3 (OAT > 68)  
NOTE: PremierLink control performs smart staging of 2 stages of DX  
cooling and up to 3 stages of heat.  
S
S
Economizer is opened 100%.  
Compressors 1 and 2 are cycled based on Y1 and Y2  
using minimum on and off times and watching the  
supply air temperature as compared to SATLO1 and  
SATLO2 set points.  
C06042  
Fig. 51 --- DX Cooling Temperature  
Control Example  
If optional power exhaust is installed, as the outdoor-air damper  
opens and closes, the power exhaust fans will be energized and  
deenergized.  
TEMPERATURE CONTROL  
75  
74  
If field-installed accessory CO sensors are connected to the  
2
PremierLink™ control, a PID-controlled demand ventilation  
73  
strategy will begin to operate. As the CO level in the zone  
2
72  
71  
COOL SETPOINT  
TEMPERATURE  
HEAT SETPOINT  
increases above the CO set point, the minimum position of the  
2
damper will be increased proportionally. As the CO level  
2
70  
decreases because of the increase in fresh air, the outdoor-air  
damper will be proportionally closed.  
69  
68  
HEATING -- UNITS WITH ECONOMI$ER2, PREMIER-  
LINK CONTROL AND A THERMOSTAT  
TIME  
When the thermostat calls for heating, terminal W1 is energized.  
The PremierLink control will move the economizer damper to the  
minimum position if there is a call for G and closed if there is a  
call for W1 without G. In order to prevent thermostat from short  
cycling, the unit is locked into the heating mode for at least 10  
minutes when W1 is energized. The induced--draft motor is then  
energized and the burner ignition sequence begins.  
On units equipped for two stages of heat, when additional heat is  
needed, W2 is energized and the high--fire solenoid on the main  
gas valve (MGV) is energized. When the thermostat is satisfied  
and W1 is deenergized, the IFM stops after a 45--second time--off  
delay unless G is still maintained.  
C06043  
Fig. 52 --- Economizer Temperature  
Control Example  
When free cooling is available, the outdoor-air damper is  
positioned through the use of a Proportional Integral (PID)  
control process to provide a calculated supply-air temperature  
into the zone. The supply air will maintain the space temperature  
between the heating and cooling set points as indicated in Fig. 52.  
The PremierLink control will integrate the compressor stages  
with the economizer based on similar logic as the three routines  
listed in the previous section. The SASP will float up and down  
based on the error reduction calculations that compare space  
temperature and space set point.  
COOLING -- UNITS WITH ECONOMI$ER2, PREMIER-  
LINK CONTROL AND A ROOM SENSOR  
When free cooling is not available, the compressors will be  
controlled by the PremierLink controller using a PID Error  
reduction calculation as indicated by Fig 51.  
When outside-air temperature conditions require the economizer  
to close for a compressor stage-up sequence, the economizer  
control integrator is reset to zero after the stage-up sequence is  
completed. This prevents the supply-air temperature from  
dropping too quickly and creating a freeze condition that would  
make the compressor turn off prematurely.  
The high space set point is used for DX (direct expansion)  
cooling control, while the economizer space set point is a  
calculated value between the heating and cooling set points. The  
economizer set point will always be at least one degree below the  
cooling set point, allowing for a smooth transition from  
mechanical cooling with economizer assist, back to economizer  
cooling as the cooling set point is achieved. The compressors  
may be used for initial cooling then the PremierLink controller  
will modulate the economizer using an error reduction calculation  
to hold the space temperature between the heating and cooling set  
points. (See Fig. 52.)  
The PremierLink controller will use the following information to  
determine if free cooling is available:  
S
S
Indoor fan has been on for at least 30 seconds.  
The SPT, SAT, and OAT inputs must have valid  
readings.  
S
S
S
OAT must be less than 75_F.  
OAT must be less than SPT.  
Enthalpy must be LOW (may be jumpered if an  
enthalpy sensor is not available).  
S
Economizer position is NOT forced.  
The controller uses the following conditions to determine  
economizer cooling:  
S
S
S
Enthalpy is Low  
SAT reading is available  
OAT reading is available  
48  
head and suction pressure high, allowing normal design cooling  
mode operation down to 0° F.  
Subcooling Mode  
S
S
S
SPT reading is available  
OAT ± SPT  
Economizer Position is NOT forced  
When subcooling mode is initiated, this will energize (close) the  
liquid line solenoid valve (LLSV) forcing the hot liquid  
refrigerant to enter into the subcooling coil. (See Fig. 54.)  
As the hot liquid refrigerant passes through the subcooling/ reheat  
dehumidification coil, it is exposed to the cold supply airflow  
coming through the evaporator coil. The liquid is further  
If any of the above conditions are not met, the economizer  
submaster reference (ECSR) is set to maximum limit and the  
damper moves to minimum position. The operating sequence is  
complete. The ECSR is recalculated every 30 seconds.  
If an optional power exhaust is installed, as the outdoor-air  
damper opens and closes, the power exhaust fans will be  
energized and deenergized.  
If field-installed accessory CO sensors are connected to the  
PremierLink™ control, a PID-controlled demand ventilation  
subcooled to  
a
temperature approaching the evaporator  
leaving-air temperature. The liquid then enters a thermostatic  
expansion valve (TXV) where the liquid drops to a lower  
pressure. The TXV does not have a pressure drop great enough to  
change the liquid to a 2-phase fluid, so the liquid then enters the  
Acutrol™ device at the evaporator coil.  
2
strategy will begin to operate. As the CO level in the zone  
increases above the CO set point, the minimum position of the  
2
2
damper will be increased proportionally. As the CO level  
decreases because of the increase in fresh air, the outdoor-air  
damper will be proportionally closed.  
HEATING -- UNIT WITH ECONOMI$ER2, PREMIER-  
LINK CONTROL AND A ROOM SENSOR  
2
The liquid enters the evaporator coil at a temperature lower than  
in standard cooling operation. This lower temperature increases  
the latent capacity of the rooftop unit. The refrigerant passes  
through the evaporator and is turned into a vapor. The air passing  
over the evaporator coil will become colder than during normal  
operation. However, as this same air passes over the subcooling  
coil, it will be slightly warmed, partially reheating the air.  
Every 40 seconds the controller will calculate the required heat  
stages (maximum of 3) to maintain Supply-Air Temperature  
(SAT) if the following qualifying conditions are met:  
Subcooling mode operates only when the outside air  
temperature is warmer than 40_F. A factory-installed temperature  
switch located in the condenser section will lock out subcooling  
mode when the outside temperature is cooler than 40_F.  
The scroll compressors are equipped with crankcase heaters to  
provide protection for the compressors due to the additional  
refrigerant charge required by the subcooling/reheat coil.  
When in subcooling mode, there is a slight decrease in system  
total gross capacity (5% less), a lower gross sensible capacity  
(20% less), and a greatly increased latent capacity (up to 40%  
more).  
S
S
S
Indoor fan has been on for at least 30 seconds.  
COOL mode is not active.  
OCCUPIED, TEMP. COMPENSATED START or  
HEAT mode is active.  
S
S
SAT reading is available.  
Fire shutdown mode is not active.  
If all of the above conditions are met, the number of heat stages is  
calculated; otherwise the required number of heat stages will be  
set to 0.  
If the PremierLink controller determines that heat stages are  
required, the economizer damper will be moved to minimum  
position if occupied and closed if unoccupied.  
Staging should be as follows:  
If Heating PID STAGES=2  
S
S
HEAT STAGES=1 (50% capacity) will energize HS1  
HEAT STAGES=2 (100% capacity) will energize HS2  
If Heating PID STAGES=3 and AUXOUT = HS3  
S
S
S
HEAT STAGES=1 (33% capacity) will energize HS1  
HEAT STAGES=2 (66% capacity) will energize HS2  
HEAT STAGES=3 (100% capacity) will energize HS3  
In order to prevent short cycling, the unit is locked into the  
Heating mode for at least 10 minutes when HS1 is deenergized.  
When HS1 is energized the induced-draft motor is then  
energized and the burner ignition sequence begins. On units  
equipped for two stages of heat, when additional heat is needed,  
HS2 is energized and the high-fire solenoid on the main gas valve  
(MGV) is energized. When the space condition is satisfied and  
HS1 is deenergized the IFM stops after a 45-second time-off  
delay unless in the occupied mode. The fan will run continuously  
in the occupied mode as required by national energy and fresh air  
standards.  
C06135  
Fig. 53 --- Humidi--MiZer Normal  
Design Cooling Operation  
UNITS WITH HUMIDI-MIZER™ ADAPTIVE  
DEHUMIDIFICATION SYSTEM  
Normal Design Operation  
When the rooftop operates under the normal sequence of  
operation, the compressors will cycle to maintain indoor  
conditions. (See Fig. 53.)  
The Humidi-MiZer adaptive dehumidification system includes a  
factory-installed Motormaster® low ambient control to keep the  
49  
SERVICE  
!
WARNING  
ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could cause personal  
injury or death.  
When sevicing unit, shut off all electrical power to unit  
and install lockout tag to avoid shock hazard or injury  
from rotating parts.  
Step 1 —Cleaning  
Inspect unit interior at the beginning of heating and cooling  
season and as operating conditions require.  
EVAPORATOR COIL  
C06136  
1. Turn unit power off, tag disconnect. Remove evaporator  
coil access panel.  
Fig. 54 --- Humidi--MiZer Subcooling  
Mode Operation  
2. If economizer or two-position damper is installed, remove  
economizer by disconnecting Molex plug and  
removing mounting screws.  
3. Slide filters out of unit.  
4. Clean coil using a commercial coil cleaner or dishwasher  
detergent in a pressurized spray canister. Wash both sides  
of coil and flush with clean water. For best results,  
back-flush toward return-air section to remove foreign  
material. Flush condensate pan after completion.  
5. Reinstall economizer and filters.  
6. Reconnect wiring.  
7. Replace access panels.  
Condenser coil  
Inspect coil monthly. Clean condenser coil annually, and as  
required by location and outdoor air conditions.  
One--Row Coils  
Wash coil with commercial coil cleaner. It is not necessary to  
remove top panel.  
C06137  
2-Row Coils  
Fig. 55 --- Humidi--Mizert Hot Gas  
Reheat Mode Operation  
Clean coil as follows:  
1. Turn off unit power, tag disconnect.  
2. Remove top panel screws on condenser end of unit.  
Hot Gas Reheat Mode  
When the humidity levels in the space require humidity control, a  
hot gas solenoid valve (specific to hot gas reheat mode only) will  
open to bypass a portion of hot gas refrigerant around the  
condenser coil. (See Fig. 55.)  
3. Remove condenser coil corner post. (See Fig. 56.) To hold  
top panel open, place coil corner post between top panel  
and center post. (See Fig. 57.)  
This hot gas will mix with liquid refrigerant leaving the  
condenser coil and flow to the subcooling/reheat  
dehumidification coil. Now the conditioned air coming off the  
evaporator will be cooled and dehumidified, but will be warmed  
to neutral conditions (72_F to 75_F) by the subcooling/reheat  
dehumidification coil.  
The net effect of the rooftop when in hot gas reheat mode is to  
provide nearly all latent capacity removal from the space when  
sensible loads diminish (when outdoor temperature conditions are  
moderate). When in hot gas reheat mode, the unit will operate to  
provide mostly latent capacity and extremely low sensible heat  
ratio capability.  
Similar to the subcooling mode of operation, hot gas reheat mode  
operates only when the outside air temperature is warmer than  
40_F. Below this temperature, a factory installed outside air  
temperature switch will lockout this mode of operation.  
C06044  
See Table 39 for the Humidi-Mizer adaptive dehumidification  
system sequence of operation.  
Fig. 56 --- Cleaning Condenser Coil  
50  
Table 39—Humidi-Mizer Adaptive Dehumidification System Sequence of Operation and  
System Response — Single Compressor Unit (48HE003--006, 48HJ004-007)  
THERMOSTAT INPUT  
ECONOMIZER FUNCTION  
48HE, HJ UNIT OPERATION  
H
Y1  
Y2  
OAT. < Economizer Set Point  
Economizer  
Comp. 1  
Subcooling Mode  
Hot Gas Reheat Mode  
Normal Operation  
Off  
—
—
On  
On  
On  
On  
On  
On  
On  
On  
On  
Off  
On  
Off  
On  
Off  
Off  
No  
No  
Yes  
Yes  
No  
Off  
Off  
On  
On  
Off  
On  
On  
On  
On  
On  
Yes  
Yes  
Yes  
No  
No  
No  
No  
Yes  
Yes  
No  
NOTE: On a thermostat call for W1, all cooling and dehumidification will be off.  
LEGEND  
OAT --- Outdoor Air Temperature  
condensate drain  
Check and clean each year at the start of the cooling season. In  
winter, keep the drain dry or protect it against freeze-up.  
filters  
Clean or replace at the start of each heating and cooling season, or  
more often if operating conditions require it. Replacement filters  
must be the same dimensions as the original filters.  
outdoor--air inlet screens  
Clean the screens with steam or hot water and a mild detergent.  
Do not use disposable filters in place of screens.  
Step 2 —Lubrication  
compressor  
C06045  
Fig. 57 --- Propping Up Top Panel  
The compressor is charged with the correct amount of oil at the  
factory.  
fan motor bearings  
Fan motor bearings are permanently lubricated. No further  
lubrication is required. No lubrication of condenser-fan or  
evaporator-fan motors is required.  
Step 3 —Condenser--Fan Adjustment  
Shut off unit power supply. Remove condenser-fan assembly  
(grille, motor, motor cover, and fan) and loosen fan hub  
setscrews. Adjust fan height as shown in Fig. 59. Tighten  
setscrews and replace condenser-fan assembly.  
UNIT  
FAN HEIGHT (in.) — “A”  
003-006 AND 007 (208/230 v)  
007 (460 v)  
2.75  
3.50  
C06046  
Fig. 58 --- Separating Coil Sections  
4. Remove screws securing coil to compressor plate and  
compressor access panel.  
C06138  
Fig. 59 --- Condenser--Fan Adjustment  
Step 4 —EconoMi$er IV Adjustment  
5. Remove fastener holding coil sections together at return  
end of condenser coil. Carefully separate the outer coil  
section 3 to 4 in. from the inner coil section. (See Fig. 58.)  
6. Use a water hose or other suitable equipment to flush  
down between the 2 coil sections to remove dirt and  
debris. Clean the outer surfaces with a stiff brush in the  
normal manner.  
Refer to Optional EconoMi$er IV and EconoMi$er2 section.  
Step 5 —Evaporator Fan Belt Inspection  
Check con-dition of evaporator belt or tension during heating and  
cooling inspections or as conditions require. Replace belt or  
adjust as necessary.  
7. Secure inner and outer coil rows together with  
field-supplied fastener.  
a
Step 6 —High Pressure Switch  
8. Reposition the outer coil section and remove the coil  
corner post from between the top panel and center post.  
Reinstall the coil corner post and replace all screws.  
The high-pressure switch contains a Schrader core depressor, and  
is located on the compressor hot gas line. This switch opens at  
428 psig and closes at 320 psig. No adjustments are necessary.  
51  
Step 7 —Loss--of--Charge Switch  
The loss-of-charge switch contains a Schrader core depressor, and  
is located on the compressor liquid line. This switch opens at 7  
psig and closes at 22 psig. No adjustments are necessary.  
Step 8 —Freeze--Stat  
The freeze-stat is a bimetal temperature-sensing switch that is  
located on the “hair-pin” end of the evaporator coil. The switch  
protects the evaporator coil from freeze-up due to lack of airflow.  
The switch opens at 30_F and closes at 45_F. No adjustments are  
necessary.  
Step 9 —Refrigerant Charge  
Amount of refrigerant charge is listed on unit nameplate (also  
refer to Table 1). Refer to HVAC Servicing Procedures literature  
available at your local distributor and the following procedures.  
Unit panels must be in place when unit is operating during  
charging procedure. Unit must operate a minimum of 10 minutes  
before checking or adjusting refrigerant charge.  
An accurate superheat, thermocouple-type or thermistor-type  
thermometer, and a gauge manifold are required when using the  
superheat charging method for evaluating the unit charge. Do not  
use mercury or small dial-type thermometers because they are not  
adequate for this type of measurement.  
C06139  
Fig. 60 --- Cooling Charging Chart,  
Standard 48HJ004  
No charge  
Use standard evacuating techniques. After evacuating system to  
500 microns, weigh in the specified amount of refrigerant. (Refer  
to Table 1 or 2 and unit information plate.)  
Low charge cooling  
Using Cooling Charging Charts, Fig. 60--63, vary refrigerant  
until the conditions of the charts are met. Note the charging charts  
are different from type normally used. Charts are based on  
charging the units to the correct superheat for the various  
operating conditions. Accurate pressure gage and temperature  
sensing device are required. Connect the pressure gauge to the  
service port on the suction line. Mount the temperature sensing  
device on the suction line and insulate it so that outdoor ambient  
temperature does not affect the reading. Indoor-air cfm must be  
within the normal operating range of the unit.  
HUMIDI--MIZER™ SYSTEM CHARGING  
The system charge for units with the Humidi-MiZer adaptive  
dehumidification system is greater than that of the standard unit  
alone. The charge for units with this option is indicated on the  
unit nameplate drawing. Also refer to Fig. 64-67. To charge  
systems using the Humidi-MiZer adaptive dehumidification  
system, fully evacuate, recover, and recharge the system to the  
nameplate specified charge level. To check or adjust refrigerant  
charge on systems using the Humidi-MiZer adaptive  
dehumidification system, charge per Fig. 64-67.  
C06140  
Fig. 61 --- Cooling Charging Chart,  
Standard 48HJ005  
52  
C06141  
Fig. 62 --- Cooling Charging Chart,  
Standard 48HJ006  
C06143  
Fig. 64 --- Cooling Charging Chart, 48HJ004 with  
Optional Humidi--MiZer Adaptive Dehumidification System  
C06142  
Fig. 63 --- Cooling Charging Chart,  
Standard 48HJ007  
C06144  
Fig. 65 --- Cooling Charging Chart, 48HJ005 with  
Optional Humidi--MiZer Adaptive Dehumidification System  
NOTE: When using the charging charts, it is important that only  
the subcooling/reheat dehumidification coil liquid line solenoid  
valve be energized. The subcooling/reheat dehumidification coil  
liquid line solenoid valve MUST be energized to use the charging  
charts and the outdoor motor speed controller jumpered to run the  
fan at full speed.  
53  
The charts reference a liquid pressure (psig) and temperature at a  
point between the condenser coil and the subcooling/reheat  
dehumidification coil. A tap is provided on the unit to measure  
liquid pressure entering the subcooling/reheat dehumidification  
coil.  
IMPORTANT: The subcooling mode charging charts (Fig.  
64--67) are to be used ONLY with units having the  
Humidi--MiZer adaptive dehumidification system. DO NOT use  
standard charge (Fig. 60--63) for units with Humidi--MiZer  
system, and DO NOT use Fig. 64--67 for standard units.  
C06146  
Fig. 67 --- Cooling Charging Chart, 48HJ007 with  
Optional Humidi--MiZer Adaptive Dehumidification System  
TO USE COOLING CHARGING CHART, STANDARD  
UNIT  
Take the outdoor ambient temperature and read the suction  
pressure gauge. Refer to charts to determine what suction  
temperature should be. If suction temperature is high, add  
refrigerant. If suction temperature is low, carefully recover some  
of the charge. Recheck the suction pressure as charge is adjusted.  
C06145  
Fig. 66 --- Cooling Charging Chart, 48HJ005 with  
Example (Fig. 59):  
Optional Humidi--MiZer Adaptive Dehumidification System  
Outdoor Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 75°F  
Suction Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 psig  
Suction Temperature should be . . . . . . . . . . . . . . . . . . 48°F  
(Suction temperature may vary ± 5°F.)  
If a charging device is used, temperature and pressure readings  
must be accomplished using the charging charts.  
54  
F
C
F
C
48HE -- 5 TON CHARGING CHART  
Suction Line Temperature (deg C)  
48HE -- 2 TON CHARGING CHART  
Suction Line Temperature (deg C)  
115 46  
105 41  
125 52  
115 46  
105 41  
95  
85  
75  
35  
29  
24  
95  
85  
75  
35  
29  
24  
0.0  
5.0  
10.0  
15.0  
20.0  
25.0  
5.5  
105.0  
10.5  
15.5  
20.5  
25.5  
810.0  
710.0  
610.0  
510.0  
410.0  
310.0  
115.0  
698.0  
100.0  
95.0  
90.0  
85.0  
80.0  
75.0  
70.0  
65.0  
105.0  
95.0  
85.0  
75.0  
65.0  
55.0  
648.0  
598.0  
548.0  
498.0  
448.0  
42  
47  
52  
57  
62  
67  
72  
77  
42  
52  
62  
72  
Suction Line Temp (deg F)  
Suction Line Temp (deg F)  
C06151  
C06148  
Fig. 71 --- Cooling Charging Chart,  
Fig. 68 --- Cooling Charging Chart,  
Standard 48HE006  
Standard 48HE003  
TO USE COOLING CHARGING CHARTS, UNITS WITH  
HUMIDI--MIZER™ ADAPTIVE DEHUMIDIFICATION  
SYSTEM  
F
C
48HE - 3 TON CHARGING CHART  
115 46  
105 41  
95  
85  
75  
35  
29  
24  
Suction Line Temperature (deg C)  
11.1 16.1 21.1  
Refer to charts (Fig. 64-67) to determine the proper leaving  
condenser pressure and temperature.  
6.1  
Example (Fig. 64):  
Leaving Condenser Pressure . . . . . . . . . . . . . . . . . 250 psig  
Leaving Condenser Temperature . . . . . . . . . . . . . . . 105°F  
95.0  
85.0  
648.2  
598.2  
548.2  
498.2  
448.2  
NOTE: When using the charging charts, it is important that only  
the subcooling/reheat dehumidification coil liquid line solenoid  
valve be energized. The subcooling/reheat dehumidification coil  
liquid line solenoid valve MUST be energized to use the charging  
charts and the outdoor motor speed controller jumpered to run the  
fan at full speed.  
75.0  
65.0  
Step 10 —Flue Gas Passageways  
To inspect the flue collector box and upper areas of the heat  
exchanger:  
43  
48  
53  
58  
63  
68  
73  
78  
Suction Line Temp (deg F)  
C06149  
Fig. 69 --- Cooling Charging Chart,  
1. Remove the combustion blower wheel and motor  
assembly according to directions in Combustion-Air  
Blower section below.  
Standard 48HE004  
F
C
2. Remove the 3 screws holding the blower housing to the  
flue cover.  
115 46  
105 41  
95  
85  
75  
48HE - 4 TON CHARGING CHART  
Suction Line Temperature (deg C)  
35  
29  
24  
3. Remove the flue cover to inspect the heat exchanger.  
4. Clean all surfaces as required using a wire brush.  
Step 11 —Combustion--Air Blower  
Clean periodically to ensure proper airflow and heating  
efficiency. Inspect blower wheel every fall and periodically  
during heating season. For the first heating season, inspect blower  
wheel bimonthly to determine proper cleaning frequency.  
5.6  
10.6  
15.6  
20.6  
25.6  
692.0  
642.0  
592.0  
542.0  
492.0  
97.0  
87.0  
77.0  
67.0  
To inspect blower wheel, remove draft hood and screen. Shine a  
flashlight into opening to inspect wheel. If cleaning is required,  
remove motor and wheel as follows:  
1. Slide burner access panel out.  
42  
47  
52  
57  
62  
67  
72  
77  
Suction Line Temp (deg F)  
2. Remove the 5 screws that attach induced-draft motor  
assembly to the vestibule cover.  
C06150  
Fig. 70 --- Cooling Charging Chart,  
3. Slide the motor and blower wheel assembly out of the  
blower housing. The blower wheel can be cleaned at this  
point. If additional cleaning is required, continue with  
Steps 4 and 5.  
Standard 48HE005  
4. To remove blower from the motor shaft, remove  
2 setscrews.  
5. To remove motor, remove the 4 screws that hold the  
motor to mounting plate. Remove the motor cooling fan  
55  
by removing one setscrew. Then remove nuts that hold  
motor to mounting plate.  
REMOVAL AND REPLACEMENT OF GAS TRAIN  
(See Fig. 72 and 73)  
6. To reinstall, reverse the procedure outlined above.  
1. Shut off manual gas valve.  
Step 12 —Limit Switch  
Remove blower access panel (Fig. 8). Limit switch is located on  
the fan deck.  
2. Shut off power to unit, tag disconnect.  
3. Remove compressor access panel.  
4. Slide out burner compartment side panel.  
5. Disconnect gas piping at unit gas valve.  
6. Remove wires connected to gas valve. Mark each wire.  
7. Remove induced-draft motor, igniter, and sensor wires at  
the Integrated Gas Unit Controller (IGC).  
8. Remove the 2 screws that attach the burner rack to the  
vestibule plate.  
Step 13 —Burner Ignition  
Unit is equipped with a direct spark ignition 100% lockout  
system. Integrated Gas Unit Controller (IGC) is located in the  
control box (Fig. 13). A single LED on the IGC provides a visual  
display of operational or sequential problems when the power  
supply is uninterrupted. The LED can be observed through the  
viewport. When a break in power occurs, the IGC will be reset  
(resulting in a loss of fault history) and the evaporator fan on/off  
times delay will be reset. During servicing, refer to the label on  
the control box cover or Table 40 for an explanation of LED error  
code descriptions.  
9. Remove the gas valve bracket.  
10. Slide the burner tray out of the unit (Fig. 73).  
11. To reinstall, reverse the procedure outlined above.  
If lockout occurs, unit may be reset by interrupting power supply  
to unit for at least 5 seconds.  
INDUCED-  
DRAFT  
ROLLOUT  
SWITCH  
MOTOR  
MOUNTING  
PLATE  
Table 40—LED Error Code Description*  
LED INDICATION  
ON  
ERROR CODE DESCRIPTION  
Normal Operation  
Hardware Failure  
Evaporator Fan On/Off Delay Modified  
Limit Switch Fault  
Flame Sense Fault  
4 Consecutive Limit Switch Faults  
Ignition Lockout Fault  
Induced-Draft Motor Fault  
Rollout Switch Fault  
Internal Control Fault  
Software Lockout  
OFF  
1 Flash†  
BURNER  
SECTION  
FLUE  
EXHAUST  
2 Flashes  
3 Flashes  
4 Flashes  
5 Flashes  
6 Flashes  
7 Flashes  
8 Flashes  
9 Flashes  
VESTIBULE  
PLATE  
INDUCED-  
DRAFT  
MOTOR  
BLOWER  
HOUSING  
MANIFOLD  
PRESSURE  
TAP  
GAS  
VALVE  
LEGEND  
C06152  
LED — Light-Emitting Diode  
Fig. 72 --- Burner Section Details  
*A 3-second pause exists between LED error code flashes. If more than  
one error code exists, all applicable codes will be displayed in numeri-  
cal sequence.  
†Indicates a code that is not an error. The unit will continue to operate  
when this code is displayed.  
IMPORTANT: Refer to Troubleshooting Tables for additional  
information.  
Step 14 —Main Burners  
At the beginning of each heating season, inspect for deterioration  
or blockage due to corrosion or other causes. Observe the main  
burner flames and adjust, if necessary.  
!
CAUTION  
FURNACE DAMAGE HAZARD  
C06153  
Fig. 73 --- Burner Tray Details  
12. Reinstall burners on rack.  
Failure to follow this caution may result in reduced furnace  
life.  
When servicing gas train, do not hit or plug orifice spuds.  
56  
LOW HEAT  
48HJE/H004, 48HJD/G005-007 — 72,000 BTUH INPUT  
48HJM004, 48HJL005,006 — 60,000 BTUH INPUT  
48HEF003, 48HEE004, 48HED005 -  
MEDIUM AND HIGH HEAT  
48HJE/H005-007, 48HJF/K004 — 115,000 BTUH INPUT  
48HJF/K005-007 — 150,000 BTUH INPUT  
48HJM005,006; 48HJN004 — 90,000 BTUH INPUT  
48HJN005,006 — 120,000 BTUH INPUT  
48HEF004, 48HEE/F005, 48HED/E/F006 -  
C06154  
Fig. 74 --- Spark Gap Adjustment  
Cleaning and Adjustment  
5. Reinstall burner rack as described above.  
Step 15 —Replacement Parts  
A complete list of replacement parts may be obtained from any  
Carrier distributor upon request. Refer to Fig. 75 for a typical unit  
wiring schematic.  
1. Remove burner rack from unit as described above.  
2. Inspect burners and, if dirty, remove burners from rack.  
3. Using a soft brush, clean burners and cross-over port as  
required.  
4. Adjust spark gap. (See Fig. 74.)  
57  
NOTES:  
1. If any of the original wire furnished must be replaced, it must  
be replaced with type 90 C wire or its equivalent.  
2. Three phase motors are protected under primary single  
phasing conditions.  
3. Use copper conductors only.  
4. TRAN is wired for 230 v unit. If unit is to be run with 208 v  
power supply, disconnect BLK wire from 230 v tap (ORN)  
and connect to 208 v tap (RED). Insulate end of 230 v tap.  
LEGEND  
OFM  
OLR  
P
—
—
—
—
—
—
—
—
Outdoor (Condenser) Fan Motor  
Overload Relay  
C
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Contactor, Compressor  
Capacitor  
CAP  
CLO  
COMP  
EQUIP  
FPT  
FU  
Splice  
Plug  
Compressor Lockout  
Compressor Motor  
Equipment  
PL  
Plug Assembly  
Splice (Marked)  
Factory Wiring  
QT  
RS  
SAT  
TRAN  
Quadruple Terminal  
Rollout Switch  
Freeze Up Protection Thermostat  
Fuse  
Supply Air Temperature Sensor  
Transformer  
GND  
HPS  
HS  
Ground  
Field Control Wiring  
High-Pressure Switch  
Hall-Effect Sensor  
Ignitor  
Field Splice  
Field Power Wiring  
I
Accessory or Optional Wiring  
To indicate common potential only;  
not to represent wiring.  
Marked Wire  
IDM  
IFC  
Induced-Draft Motor  
Indoor Fan Contactor  
Indoor Fan Motor  
Integrated Gas Unit Controller  
Low-Pressure Switch  
Limit Switch  
Terminal (Marked)  
Terminal (Unmarked)  
Terminal Block  
IFM  
IGC  
LPS  
LS  
MGV  
Main Gas Valve  
C06147  
Fig. 75 --- Typical Wiring Schematic and Component Arrangement (208/230--3--60 Shown)  
58  
dcv (demand controlled ventilation) and power exhaust  
TROUBLESHOOTING  
To check DCV and Power Exhaust:  
Step 1 —Unit Troubleshooting  
1. Make sure EconoMi$er IV preparation procedure has been  
performed.  
Refer to Tables 35-39 for unit troubleshooting details.  
Step 2 —Economi$er IV Troubleshooting  
See Table 40 for EconoMi$er IV logic.  
2. Ensure terminals AQ and AQ1 are open. The LED for  
both DCV and Exhaust should be off. The actuator should  
be fully closed.  
3. Connect a 9-v battery to AQ (positive node) and AQ1  
(negative node). The LED for both DCV and Exhaust  
should turn on. The actuator should drive to between 90  
and 95% open.  
A functional view of the EconoMi$er IV is shown in Fig. 69.  
Typical settings, sensor ranges, and jumper positions are also  
shown. An EconoMi$er IV simulator program is available from  
Carrier to help with EconoMi$er IV training and  
troubleshooting.  
Economi$er IV preparation  
4. Turn the Exhaust potentiometer CW until the Exhaust  
LED turns off. The LED should turn off when the  
potentiometer is approximately 90%. The actuator should  
remain in position.  
This procedure is used to prepare the EconoMi$er IV for  
troubleshooting. No troubleshooting or testing is done by  
performing the following procedure.  
NOTE: This procedure requires a 9-v battery, 1.2 kilo-ohm  
resistor, and a 5.6 kilo-ohm resistor which are not supplied with  
the EconoMi$er IV.  
5. Turn the DCV set point potentiometer CW until the DCV  
LED turns off. The DCV LED should turn off when the  
potentiometer is approximately 9v. The actuator should  
drive fully closed.  
IMPORTANT: Be sure to record the positions of all  
potentiometers before starting troubleshooting.  
6. Turn the DCV and Exhaust potentiometers CCW until the  
Exhaust LED turns on. The exhaust contacts will close 30  
to 120 seconds after the Exhaust LED turns on.  
1. Disconnect power at TR and TR1. All LEDs should be  
off. Exhaust fan contacts should be open.  
7. Return EconoMi$er IV settings and wiring to normal  
after completing troubleshooting.  
dcv minimum and maximum position  
2. Disconnect device at P and P1.  
3. Jumper P to P1.  
4. Disconnect wires at T and T1. Place 5.6 kilo-ohm resistor  
across T and T1.  
To check the DCV minimum and maximum position:  
1. Make sure EconoMi$er IV preparation procedure has been  
performed.  
5. Jumper TR to 1.  
6. Jumper TR to N.  
2. Connect a 9-v battery to AQ (positive node) and AQ1  
(negative node). The DCV LED should turn on. The  
actuator should drive to between 90 and 95% open.  
3. Turn the DCV Maximum Position potentiometer to  
midpoint. The actuator should drive to between 20 and  
80% open.  
7. If connected, remove sensor from terminals S and +.  
O
Connect 1.2 kilo-ohm 4074EJM checkout resistor across  
terminals S and +.  
O
8. Put 620-ohm resistor across terminals S and +.  
R
9. Set minimum position, DCV set point, and exhaust  
potentiometers fully CCW (counterclockwise).  
4. Turn the DCV Maximum Position potentiometer to fully  
CCW. The actuator should drive fully closed.  
5. Turn the Minimum Position potentiometer to midpoint.  
The actuator should drive to between 20 and 80% open.  
6. Turn the Minimum Position Potentiometer fully CW. The  
actuator should drive fully open.  
10. Set DCV maximum position potentiometer fully CW  
(clockwise).  
11. Set enthalpy potentiometer to D.  
12. Apply power (24 vac) to terminals TR and TR1.  
differential enthalpy  
To check differential enthalpy:  
7. Remove the jumper from TR and N. The actuator should  
drive fully closed.  
1. Make sure EconoMi$er IV preparation procedure has been  
performed.  
8. Return EconoMi$er IV settings and wiring to normal  
after completing troubleshooting.  
2. Place 620-ohm resistor across S and +.  
O
supply--air input  
3. Place 1.2 kilo-ohm resistor across S and +. The Free  
R
Cool LED should be lit.  
To check supply-air input:  
4. Remove 620-ohm resistor across S and +. The Free Cool  
O
1. Make sure EconoMi$er IV preparation procedure has been  
performed.  
LED should turn off.  
5. Return EconoMi$er IV settings and wiring to normal  
after completing troubleshooting.  
2. Set the Enthalpy potentiometer to A. The Free Cool LED  
turns on. The actuator should drive to between 20 and  
80% open.  
single enthalpy  
3. Remove the 5.6 kilo-ohm resistor and jumper T to T1. The  
actuator should drive fully open.  
4. Remove the jumper across T and T1. The actuator should  
drive fully closed.  
5. Return EconoMi$er IV settings and wiring to normal  
after completing troubleshooting.  
To check single enthalpy:  
1. Make sure EconoMi$er IV preparation procedure has been  
performed.  
2. Set the enthalpy potentiometer to A (fully CCW). The  
Free Cool LED should be lit.  
3. Set the enthalpy potentiometer to D (fully CW). The Free  
Cool LED should turn off.  
economi$er IV troubleshooting completion  
This procedure is used to return the EconoMi$er IV to operation.  
No troubleshooting or testing is done by performing the  
following procedure.  
4. Return EconoMi$er IV settings and wiring to normal  
after completing troubleshooting.  
1. Disconnect power at TR and TR1.  
2. Set enthalpy potentiometer to previous setting.  
59  
3. Set DCV maximum position potentiometer to previous  
setting.  
7. Remove jumper from TR to N.  
8. Remove jumper from TR to 1.  
4. Set minimum position, DCV set point, and exhaust  
potentiometers to previous settings.  
9. Remove 5.6 kilo-ohm resistor from T and T1. Reconnect  
wires at T and T1.  
5. Remove 620-ohm resistor from terminals S and +.  
6. Remove 1.2 kilo-ohm checkout resistor from terminals S  
R
10. Remove jumper from P to P1. Reconnect device at P and  
P1.  
O
and +. If used, reconnect sensor from terminals S and +.  
O
11. Apply power (24 vac) to terminals TR and TR1.  
Table 41—LED Error Code Service Analysis  
SYMPTOM  
CAUSE  
REMEDY  
Hardware Failure.  
Loss of power to control module (IGC).  
Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and  
transformer. Units without a 24-v circuit breaker have an internal  
overload in the 24-v transformer. If the overload trips, allow  
10 minutes for automatic reset.  
(LED OFF)  
Fan ON/OFF Delay Modified High limit switch opens during heat  
Ensure unit is fired on rate and temperature rise is correct.  
exchanger warm-up period before fan-on  
(LED/FLASH)  
delay expires.  
Limit switch opens within three minutes  
after blower-off delay timing in Heating  
mode.  
Ensure units’ external static pressure is within application guide-  
lines.  
Limit Switch Fault.  
(LED 2 Flashes)  
High temperature limit switch is open.  
Check the operation of the indoor (evaporator) fan motor.  
Ensure that the supply-air temperature rise is in accordance with  
the range on the unit nameplate.  
Flame Sense Fault.  
(LED 3 Flashes)  
The IGC sensed flame that should not be  
present.  
Reset unit. If problem persists, replace control board.  
4 Consecutive Limit  
Inadequate airflow to unit.  
Check operation of indoor (evaporator) fan motor and that supply-air  
temperature rise agrees with range on unit nameplate information.  
Switch Faults.  
(LED 4 Flashes)  
Ignition Lockout.  
Unit unsuccessfully attempted ignition for  
15 minutes.  
Check ignitor and flame sensor electrode spacing, gaps, etc.  
Ensure that flame sense and ignition wires are properly  
terminated. Verify that unit is obtaining proper amount of gas.  
(LED 5 Flashes)  
Induced-Draft Motor Fault. IGC does not sense that induced-draft  
Check for proper voltage. If motor is operating, check the  
speed sensor plug/IGC Terminal J2 connection. Proper  
connection: PIN 1— White, PIN 2 — Red, PIN 3 — Black.  
(LED 6 Flashes)  
motor is operating.  
Rollout Switch Fault.  
(LED 7 Flashes)  
Rollout switch has opened.  
Rollout switch will automatically reset, but IGC will continue to  
lock out unit. Check gas valve operation. Ensure that induced-  
draft blower wheel is properly secured to motor shaft.  
Reset unit at unit disconnect.  
Internal Control Fault.  
(LED 8 Flashes)  
Microprocessor has sensed an error in the  
software or hardware.  
If error code is not cleared by resetting unit power, replace the IGC.  
Temporary Software  
Electrical interference is impeding the IGC  
Reset 24-v to control board or turn thermostat off and then on. Fault  
will automatically reset itself in one hour.  
Lockout  
software.  
(LED 9 Flashes)  
IMPORTANT: Refer to heating troubleshooting for additional  
heating section troubleshooting information.  
!
CAUTION  
COMPONENT DAMAGE HAZARD  
Failure to follow this caution may result in component  
damage.  
If the IGC must be replaced, be sure to ground yourself to  
dissipate any electrical charge that may be present before  
handling new control board. The IGC is sensitive to static  
electricity and may be damaged if the necessary precautions  
are not taken.  
LEGEND  
IGC --- Integrated Gas Unit Controller  
LED --- L igh t --- E mittin g D iode  
60  
Table 42— Heating Service Analysis  
PROBLEM  
CAUSE  
Misaligned spark electrodes.  
No gas at main burners.  
REMEDY  
Burners Will Not  
Check flame ignition and sensor electrode positioning. Adjust as needed.  
Ignite.  
Check gas line for air purge as necessary. After purging gas line of air, allow gas  
to dissipate for at least 5 minutes before attempting to relight unit.  
Check gas valve.  
Water in gas line.  
No power to furnace.  
Drain water and install drip leg to trap water.  
Check power supply, fuses, wiring, and circuit breaker.  
No 24 v power supply to control circuit.  
Check transformer. Transformers with internal overcurrent protection require a  
cool-down period before resetting. Check 24-v circuit breaker; reset if neces-  
sary.  
Miswired or loose connections.  
Burned-out heat anticipator in thermostat.  
Broken thermostat wires.  
Dirty air filter.  
Check all wiring and wirenut connections.  
Replace thermostat.  
Run continuity check. Replace wires, if necessary.  
Clean or replace filter as necessary.  
Inadequate Heating.  
Gas input to unit too low.  
Check gas pressure at manifold. Clock gas meter for input. If too low, increase  
manifold pressure or replace with correct orifices.  
Unit undersized for application.  
Restricted airflow.  
Replace with proper unit or add additional unit.  
Clean filter, replace filter, or remove any restrictions.  
Blower speed too low.  
Use high speed tap, increase fan speed, or install optional blower, as suitable  
for individual units, Adjust pulley.  
Limit switch cycles main burners.  
Too much outdoor air.  
Check rotation of blower, thermostat heat anticipator settings, and temperature  
rise of unit. Adjust as needed.  
Adjust minimum position.  
Check economizer operation.  
Poor Flame  
Incomplete combustion (lack of  
combustion air) results in:  
Check all screws around flue outlets and burner compartment. Tighten as nec-  
Characteristics.  
essary.  
Aldehyde odors, CO (carbon monoxide),  
Cracked heat exchanger.  
sooting flame, or floating flame.  
Overfired unit — reduce input, change orifices, or adjust gas line or manifold  
pressure.  
Check vent for restriction. Clean as necessary.  
Check orifice to burner alignment.  
Burners Will Not  
Turn Off.  
Unit is locked into Heating mode for a  
one minute minimum.  
Wait until mandatory one-minute time period has elapsed or reset power to  
unit.  
Table 43—Humidi-MiZer™ Adaptive Dehumidification System Subcooling Mode Service Analysis  
PROBLEM  
CAUSE  
REMEDY  
Subcooling Mode (Liquid Reheat)  
No power to control transformer from  
Check power source and evaporator-fan relay. Ensure all  
Will Not Energize.  
evaporator-fan motor.  
wire connections are tight.  
No power from control transformer to liquid line  
solenoid valve.  
1. Fuse open; check fuse. Ensure continuity of wiring.  
2. Low-pressure switch open. Cycle unit off and allow  
low-pressure switch to reset. Replace switch if it will  
not close.  
3. Transformer bad; check transformer.  
Liquid line solenoid valve will not operate.  
1. Solenoid coil defective; replace.  
2. Solenoid valve stuck open; replace.  
Liquid line solenoid valve will not open.  
Valve is stuck closed; replace valve.  
Low System Capacity.  
Low refrigerant charge or frosted evaporator coil.  
1. Check charge amount. Charge per Fig. 64-67.  
2. Evaporator coil frosted; check and replace low-pres-  
sure switch if necessary.  
Loss of Compressor Superheat  
Conditions with Subcooling/Reheat  
Dehumidification Coil Energized.  
Thermostatic expansion valve (TXV).  
1. Check TXV bulb mounting, and secure tightly to suc-  
tion line.  
2. Replace TXV if stuck open or closed.  
Table 44—Humidi-MiZer™ Adaptive Dehumidification System Hot Gas Reheat Mode Service Analysis  
PROBLEM  
Reheat Mode Will Not Energize.  
CAUSE  
REMEDY  
No power to control transformer from  
Check power source and evaporator-fan relay. Ensure all  
evaporator-fan motor.  
wire connections are tight.  
No power from control transformer to hot gas  
line solenoid valve  
1. Fuse open; check fuse. Ensure continuity of wiring.  
2. Low-pressure switch open. Cycle unit off and allow  
low-pressure switch to reset. Replace switch if it will  
not close.  
3. Transformer bad; check transformer.  
Hot gas line solenoid valve will not operate.  
1. Solenoid coil defective; replace.  
2. Solenoid valve stuck closed; replace.  
Low refrigerant charge or frosted evaporator coil.  
1. Check charge amount. Charge per Fig. 64---67.  
2. Evaporator coil frosted; check and replace low-pres-  
sure switch if necessary.  
Loss of Compressor Superheat  
Conditions with Subcooling/Reheat  
Dehumidification Coil Energized.  
Thermostatic expansion valve (TXV).  
1. Check TXV bulb mounting, and secure tightly to suc-  
tion line.  
2. Replace TXV if stuck open or closed.  
Valve is stuck, replace valve.  
Valve is stuck; replace valve.  
Excessive Superheat.  
Liquid line solenoid valve will not operate.  
Hot gas line solenoid valve will not close.  
61  
Table 45—Cooling Service Analysis  
PROBLEM  
CAUSE  
REMEDY  
Call power company.  
Replace fuse or reset circuit breaker.  
Replace component.  
Power failure.  
Compressor and Condenser Fan  
Will Not Start.  
Fuse blown or circuit breaker tripped.  
Defective thermostat, contactor, transformer, or  
control relay.  
Insufficient line voltage.  
Incorrect or faulty wiring.  
Thermostat setting too high.  
Determine cause and correct.  
Check wiring diagram and rewire correctly.  
Lower thermostat setting below room tempera-  
ture.  
Faulty wiring or loose connections in compres-  
sor circuit.  
Check wiring and repair or replace.  
Determine cause. Replace compressor.  
Determine cause and replace.  
Compressor Will Not Start  
But Condenser Fan Runs.  
Compressor motor burned out, seized, or in-  
ternal overload open.  
Defective run/start capacitor, overload, start  
relay.  
One leg of 3-phase power dead.  
Replace fuse or reset circuit breaker. Determine  
cause.  
Refrigerant overcharge or undercharge.  
Recover refrigerant, evacuate system, and re-  
Compressor Cycles (Other Than  
Normally Satisfying Thermostat).  
charge to nameplate.  
Defective compressor.  
Insufficient line voltage.  
Blocked condenser.  
Replace and determine cause.  
Determine cause and correct.  
Determine cause and correct.  
Determine cause and replace.  
Defective run/start capacitor, overload, or start  
relay.  
Defective thermostat.  
Replace thermostat.  
Faulty condenser-fan motor or capacitor.  
Restriction in refrigerant system.  
Dirty air filter.  
Replace.  
Locate restriction and remove.  
Replace filter.  
Compressor Operates Continuously.  
Unit undersized for load.  
Thermostat set too low.  
Low refrigerant charge.  
Leaking valves in compressor.  
Air in system.  
Decrease load or increase unit size.  
Reset thermostat.  
Locate leak, repair, and recharge.  
Replace compressor.  
Recover refrigerant, evacuate system, and re-  
charge.  
Condenser coil dirty or restricted.  
Dirty air filter.  
Dirty condenser coil.  
Refrigerant overcharged.  
Air in system.  
Clean coil or remove restriction.  
Replace filter.  
Clean coil.  
Excessive Head Pressure.  
Recover excess refrigerant.  
Recover refrigerant, evacuate system, and re-  
charge.  
Condenser air restricted or air short-cycling.  
Low refrigerant charge.  
Compressor valves leaking.  
Restriction in liquid tube.  
High heat load.  
Compressor valves leaking.  
Refrigerant overcharged.  
Dirty air filter.  
Determine cause and correct.  
Check for leaks, repair, and recharge.  
Replace compressor.  
Remove restriction.  
Check for source and eliminate.  
Replace compressor.  
Recover excess refrigerant.  
Replace filter.  
Check for leaks, repair, and recharge.  
Remove source of restriction.  
Head Pressure Too Low.  
Excessive Suction Pressure.  
Suction Pressure Too Low.  
Low refrigerant charge.  
Metering device or low side restricted.  
Insufficient evaporator airflow.  
Increase air quantity. Check filter and replace if  
necessary.  
Temperature too low in conditioned area.  
Outdoor ambient below 25 F.  
Time off delay not finished.  
Reset thermostat.  
Install low-ambient kit.  
Wait for 30-second off delay.  
Evaporator Fan Will Not Shut Off.  
62  
Table 46—EconoMi$er IV Input/Output Logic  
INPUTS  
Outdoor  
OUTPUTS  
N Terminal†  
Occupied  
Enthalpy*  
Compressor  
Stage Stage  
Demand Control  
Ventilation (DCV)  
Unoccupied  
Y1 Y2  
Return  
Damper  
Closed  
1
2
On  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Off  
Off  
Off  
Off  
Below set  
High  
Low  
On On  
On Off  
Off Off  
On On  
On Off  
Off Off  
On On  
On Off  
Off Off  
On On  
On Off  
Off Off  
On  
On  
Off  
On  
Off  
Off  
On  
On  
Off  
On  
Off  
Off  
Minimum position  
(DCV LED Off)  
(Free Cooling LED Off)  
Low  
High  
Low  
High  
Modulating** (between min. Modulating** (between  
(Free Cooling LED On)  
position and full-open)  
Minimum position  
closed and full-open)  
Closed  
Above set  
High  
Modulating†† (between min. Modulating†† (between  
position and DCV maximum) closed and DCV  
maximum)  
(DCV LED On)  
(Free Cooling LED Off)  
Low  
Modulating***  
Modulating†††  
(Free Cooling LED On)  
*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.  
†Power at N terminal determines Occupied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied).  
**Modulation is based on the supply-air sensor signal.  
††Modulation is based on the DCV signal.  
***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position (DCV) or fully open (sup-  
ply-air signal).  
†††Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air sig-  
nal).  
C06053  
Fig. 76 --- EconoMi$er IV Functional View  
63  
START-UP CHECKLIST  
(Remove and Store in Job File)  
I. PRELIMINARY INFORMATION  
MODEL NO.:  
DATE:  
SERIAL NO.:  
TECHNICIAN:  
II. PRE-START-UP (insert checkmark in box as each item is completed)  
j
j
j
j
j
j
j
j
j
VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE  
VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT  
REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS  
VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS  
CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS  
CHECK GAS PIPING FOR LEAKS  
CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE  
VERIFY THAT UNIT INSTALLATION IS LEVEL  
CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW  
TIGHTNESS  
j
CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES  
OR SHARP METAL EDGES  
j CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS  
III. START-UP  
ELECTRICAL  
SUPPLY VOLTAGE  
COMPRESSOR AMPS  
INDOOR-FAN AMPS  
L1-L2  
L1  
L1  
L2-L3  
L2  
L2  
L3-L1  
L3  
L3  
TEMPERATURES  
OUTDOOR-AIR TEMPERATURE  
RETURN-AIR TEMPERATURE  
COOLING SUPPLY AIR  
DB  
DB  
DB  
DB  
WB  
HEATING SUPPLY AIR  
PRESSURES (Cooling Mode)  
GAS INLET PRESSURE  
IN.WG  
IN.WG (HIGH FIRE)  
GAS MANIFOLD PRESSURE  
REFRIGERANT SUCTION  
REFRIGERANT DISCHARGE  
PSIG  
PSIG  
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VERIFY THAT 3-PHASE FAN MOTOR AND BLOWER ARE ROTATING IN CORRECT DIRECTION. IF THEY  
ARE NOT ROTATING IN CORRECT DIRECTION, LOCKING COLLAR MUST BE RE-TIGHTENED AFTER  
CORRECTING DIRECTION OF ROTATION  
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VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION  
VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS  
Printed in U.S.A.  
Edition Date:09/06  
Copyright 2006 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231  
Catalog No:48H-1SI  
Replaces:48HJ--33SI  
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.  
64  

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