preliminary product fact sheet
556A
14 SEER SPLIT-SYSTEM
AIR CONDITIONER WITH R-410A
DATA FOR PRELIMINARY USE ONLY
Cancels: New
PF 556A.24.1
11-97
The model 556A Air Conditioner uses the ozone-friendly refrigerant
R-410A. The unit is available in nominal sizes 024 through 042. The
unit features a copper tube, enhanced aluminum fin coil for a compact,
low-profile appearance with vertical air discharge.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
SEER of at least 14.0 with specified Bryant equipment
AeroQuiet System
Earth-friendly refrigerant R-410A
High-pressure switch
Low-pressure switch
R-410A liquid-line filter drier
Compressor sound hood
Compressor start assist—PTC type
Compressor plug
Crankcase heater
Copper tube aluminum fin coil
External brass back seating service valves with sweat connections
R-410A hard shutoff TXV
Condenser coil grille
Electric ground lug
A97272
LIMITED WARRANTY
•
•
1-year parts only warranty on all parts
Additional 9-year warranty on compressor, no labor
This product meets GREEN
SEAL criteria for manufac-
turing, energy efficiency,
sound levels and packaging.
It contains no CFCs or
HCFCs.
As an ENERGY STARSM Partner,
Bryant Heating Cooling Sys-
tems has determined that this prod-
uct meets the ENERGY STAR
guidelines for energy efficiency.
&
REGISTERED QUALITY SYSTEM
—1—
TESTED COMBINATION RATINGS*
SEER
Bryant Gas
TOTAL
CAPACITY
BTUH
Factory-
Supplied
Enhance-
ment
INDOOR
MODEL
UNIT SIZE-SERIES
EER
Standard
Rating
Furnace or
Accessory
TDR†
Accessory
TXV‡
024-A
030-A
036-A
042-A
CJ5A/CK5A/CK5BA036
CJ5A/CK5A/CK5BA042
CJ5A/CK5A/CK5BA048
CJ5A/CK5A/CK5BA060
26,600
30,500
36,500
42,000
TXV
TXV
TXV
TXV
—
—
—
—
14.00
14.10
14.10
14.00
—
—
—
—
12.00
12.00
11.90
11.90
* Outdoor section/indoor section combination tested in accordance with DOE test procedure for electric air conditioners.
† In most cases, only 1 method should be used to achieve TDR function. Using more than 1 method in a system may cause degradation in performance. Use either the
accessory Time-Delay Relay KAATD0101TDR or a furnace equipped with TDR. All Bryant furnaces are equipped with TDR except for the 394HAD.
‡ Based on computer simulation. TXV must be R-410A compatible and hard shutoff type.
EER—Energy Efficiency Ratio
SEER—Seasonal Energy Efficiency Ratio
TDR—Time-Delay Relay
TXV—Thermostatic Expansion Valve
NOTES: 1. Ratings are net values reflecting the effects of circulating fan heat. Supplemental electric heat is not included.
2. Determine actual CFM values obtainable for your system by referring to fan performance data in fan coil or furnace coil literature.
3. Do not apply with capillary tube coils as performance and reliability are significantly affected.
RECOMMENDED TUBE DIAMETERS
LIQUID TUBE DIAMETER (IN.)
VAPOR TUBE DIAMETER (IN.)
UNIT
SIZE
0 to 50 Ft
0 to 50 Ft
Long-Line Applications*
(Maximum Diameter)
Long-Line Applications*
Tube Length
Tube Length
024
030
036
042
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
5/8
3/4
3/4
7/8
3/4
7/8
7/8
1-1/8
* Tube diameters are for lengths up to 50 ft. For tubing lengths greater than 50 ft, consult the Application Guideline and Service Manual for Residential Split-System Air
Conditioners and Heat Pumps Using R-410A Refrigerant.
NOTE: Refrigerant tubes and indoor coils must be evacuated to 500 microns to minimize contamination and moisture in the system.
METERING DEVICE
REQUIRED SUBCOOLING
UNIT SIZE
INDOOR TXV*
(°F)
TBD
TBD
TBD
TBD
024-A
030-A
036-A
042-A
KSATX0201HSZ
KSATX0201HSZ
KSATX0301HSZ
KSATX0301HSZ
* TXV must be installed when indoor coil is not equipped with an R-410A approved TXV. TXV listed is for any approved coil
combination. All TXVs are R-410A specific hard shutoff.
TBD—To Be Determined
SOUND RATING (DBA)
UNIT SIZE-SERIES
024-A
SOUND RATING
70
72
74
74
030-A
036-A
042-A
—3—
SPECIFICATIONS
UNIT SIZE-SERIES
Operating Weight (Lb)
ELECTRICAL
024-A
030-A
036-A
042-A
291
291
291
291
Unit Volts—Hertz—Phase
Operating Voltage Range*
208/230—60—1
187–253
15.4
Compressor—
Rated Load Amps
Locked Rotor Amps
13.5
61.0
0.75
TBD
TBD
TBD
TBD
TBD
TBD
14.7
72.5
0.75
TBD
TBD
TBD
TBD
TBD
TBD
18.6
105.0
1.10
TBD
TBD
TBD
TBD
TBD
TBD
83.0
Condenser Fan Motor—Full Load Amps
Minimum Unit Ampacity for Wire Sizing
Minimum Wire Size (60°C Copper) (AWG)†
Minimum Wire Size (75°C Copper) (AWG)†
Maximum Wire Length (60°C) (Ft)‡
1.10
TBD
TBD
TBD
TBD
Maximum Wire Length (75°C) (Ft)‡
TBD
Maximum Branch Circuit Fuse Size**
COMPRESSOR AND REFRIGERANT
TBD
Compressor—
Manufacturer
Type
Copeland
Scroll
Refrigerant—
Type
R-410A
10.25
Amount (Lb)††
9.88
10.25
10.50
OUTDOOR COIL & FAN
Coil Face Area (Sq Ft)
18.25
20—2—4
1/8 and 825
2400
18.25
18.25
18.25
20—2—4
1/5 and 825
2800
Fins per In.—Rows—Circuits
Fan Motor HP and RPM
Rated Airflow (CFM)
20—2—4
20—2—4
1/8 and 825
2400
1/5 and 825
2800
OPTIONAL EQUIPMENT
Support Feet—4 In. (4)
Coastal Filter
KSASF0101AAA
KAACF0201MED
KAATD0101TDR
KSACY0101AAA
KSAHS1501AAA
Time-Delay Relay
Cycle Protector—5-Minute Time Delay
Start Assist—Capacitor/Relay Type
TXV (Hard Shutoff)
KSATX0201HSZ
KH45LG140 (RCD)
KSATX0301HSZ
KH45LG141 (RCD)
Filter Drier (Suction Line)
Evaporator Freeze Thermostat‡‡
Liquid-Line Solenoid Valve (LSV)
Winter Start Control
KAAFT0101AAA
KAALS0201LLS
KAAWS0101AAA
KSALA0301410
P251-0083 (RCD)
32LT660004 (RCD)
HC38GE230
Low-Ambient Pressure Switch
Low-Ambient Controller
MotorMaster® Control***
Ball Bearing Fan Motor
Thermostat—Auto Changeover, Non-Programmable,
°F/°C, 1-Stage Heat, 1-Stage Cool
TSTATBHNAC01-A
TSTATBHPAC01-A
TSTATBHPRH01-A
HH07AT212
Thermostat—Auto Changeover, 7-Day Programmable,
°F/°C, 1-Stage Heat, 1-Stage Cool
Thermidistat™ Control—Programmable Thermostat
with Humidity Control
Thermostat—Manual Changeover, Non-Programmable,
°F, 1-Stage Heat, 1-Stage Cool
Outdoor Air Temperature Sensor
TSTATXXSEN01
TSTATXXNBP01
TSTATXXPBP01
TSTATXXCNV10
Backplate for Non-Programmable Thermostat
Backplate for Programmable Thermostat
Thermostat Conversion Kit (4 to 5 Wire)—10 Pack
* Permissible limits of the voltage range at which unit will operate satisfactorily. Operation outside these limits may result in unit failure.
† If other than uncoated (non-plated), 60° or 75°C (140° or 167°F) insulation, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger than 10 AWG) is used,
consult applicable tables of the NEC (ANSI/NFPA 70).
If wire is applied at ambient greater than 30°C (86°F), consult Table 310-16 of the NEC (ANSI/NFPA 70). The ampacity of nonmetallic-sheathed cable (NM), trade name
ROMEX, shall be that of 60°C (140°F) conductors, per the NEC (ANSI/NFPA 70) Article 336-30.
‡ Length shown is as measured 1 way along the wire path between the unit and the service panel for a voltage drop not to exceed 2 percent.
** Time-delay fuse or circuit breaker.
†† The factory refrigerant charge is for 15 ft of interconnecting tubing. For tubing lengths other 15 ft, refer to the Long-Line Application Guideline and Service Manual for
Residential Split-System Air Conditioners and Heat Pumps using R-410A.
‡‡ Use with low-ambient pressure switch.
*** Fan motor with ball bearings required.
TBD—To Be Determined
NOTE: Copper wire must be used from service disconnect to unit. All motors/compressors contain internal overload protection.
—4—
ACCESSORY USAGE GUIDELINE
REQUIRED FOR
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(OVER 50 FT)
REQUIRED FOR
BURIED LINE
APPLICATIONS†
(OVER 3 FT)
REQUIRED FOR
SEA COAST
APPLICATIONS
(WITHIN 2 MILES)
LOW-AMBIENT
APPLICATIONS
(BELOW 55°F)
ACCESSORY
Crankcase Heater
Evaporator Freeze Thermostat
Winter Start Control
Accumulator
Yes
Yes
Yes‡
No
Yes
No
No
No
Yes
No
No
No
No
No
No
Yes
Compressor Start Assist
Capacitor and Relay
Yes
Yes
Yes
No
No
Low-Ambient Controller,
MotorMaster® Control,
or
Yes
No
No
Low-Ambient Pressure Switch
Wind Baffle
Coastal Filter
Support Feet
See Low-Ambient Instructions
No
No
No
No
No
No
No
Yes
No
Recommended
Recommended
Liquid-Line Solenoid Valve
See Long-Line
Application
Guideline
or
No
Yes
No
No
Hard Shutoff TXV
Ball Bearing Fan Motor
Yes**
No
No
* For tubing line sets between 50 and 175 ft, refer to the Application Guideline and Service Manual for Residential Split-System Air Conditioners and Heat Pumps using
R-410A Refrigerant.
† For buried line applications, refer to Residential Split System Buried-Line Application Guideline.
‡ Only when low-pressure switch is used.
** Required for Low-Ambient Controller (full modulation feature) and MotorMaster® Control only.
—5—
R-410A—QUICK REFERENCE GUIDE
R-410A refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment and replacement
components are designed to operate with R-410A.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
R-410A refrigerant cylinders are rose colored.
R-410A refrigerant cylinders have a dip tube which allows liquid to flow out of cylinder in upright position.
Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
R-410A systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose.
Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low-side retard.
Use hoses with 700 psig service pressure rating.
Leak detectors should be designed to detect HFC refrigerant.
R-410A, as with other HFCs, is only compatible with POE oils.
Vacuum pumps will not remove moisture from oil.
Do not use liquid-line filter driers with rated working pressures less than 600 psig.
Do not install a suction-line filter drier in liquid line.
POE oils absorb moisture rapidly. Do not expose oil to atmosphere.
POE oils may cause damage to certain plastics and roofing materials.
Wrap all filter driers and service valves with wet cloth when brazing.
A liquid-line filter drier is required on every unit.
Do not use an R-22 TXV.
If indoor unit is equipped with an R-22 TXV, it must be changed to an R-410A TXV.
Never open system to atmosphere while it is under a vacuum.
When system must be opened for service, break vacuum with dry nitrogen prior to opening to atmosphere.
Always replace filter drier after opening system for service.
Do not vent R-410A into the atmosphere.
Do not use capillary tube coils.
Observe all warnings, cautions, and bold text.
—6—
MATCHED SYSTEM
AIR CONDITIONER
VENT PERFECT
HOMEPERFECT PLUS
CONTROL CENTER
HUMIDIFIER
FURNACE COIL
FURNACE
AIR CLEANER
A97092
SYSTEM DESIGN
1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01-in. wc.
2. Minimum outdoor operating air temperature without low-ambient operation accessory is 55°F (12.8°C).
3. Maximum outdoor operating air temperature is 125°F (51.7°C)
4. For reliable operation, unit should be level in all horizontal planes.
5. Maximum elevation of indoor coil above or below base of outdoor unit is: indoor coil above = 30 ft; indoor coil below = 30 ft. (See items
6 and 7 following.)
6. For interconnecting tubing lengths greater than 50 ft, consult the Residential Split-System Application Guideline and Service Manual for
Air Conditioners and Heat Pumps using R-410A Refrigerant.
7. If ANY refrigerant tubing is buried, provide a minimum 6-in. vertical rise to the valve connections at the unit. Refrigerant tubing lengths
up to 36 in. may be buried without further considerations. For buried refrigerant tubing lengths greater than 36 in., consult the Residential
Split-System Buried-Line Application Guideline.
8. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.
9. Mixmatches of indoor coil capacity of more than 2 sizes larger than outdoor unit capacity may result in inadequate indoor comfort.
10. Do not apply capillary tube indoor coils to these units.
11. Factory-supplied filter drier must be installed.
—7—
SERVICE TRAINING
Packaged Service Training programs are an excellent way to increase your
knowledge of the equipment discussed in this manual, including:
• Unit Familiarization
• Installation Overview
• Maintenance
• Operating Sequence
A large selection of product, theory, and skills programs is available, using popular
video-based formats and materials. All include video and/or slides, plus companion
book.
Classroom Service Training plus "hands-on" the products in our labs can mean
increased confidence that really pays dividends in faster troubleshooting, fewer
callbacks. Course descriptions and schedules are in our catalog.
CALL FOR FREE CATALOG 1-800-962-9212
[ ] Packaged Service Training
[ ] Classroom Service Training
A94328
© 1997 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231
Printed in U.S.A.
pf556a1
Catalog No. 5255-601
—8—
|