F35F Media Air Cleaner
WITH EXPANDAPAC™ MEDIA FILTER
PRODUCT DATA
FEATURES
•
High efficiency Expandapac media filter with Ultra-
Web® technology captures particles as small as
1.0 micron.
•
•
Strong media will not tear when installing combs.
Combs are located down stream from filter so they
stay clean.
•
Efficiency and arrestance ratings based on the
American Society of Heating, Refrigerating and Air
Conditioning Engineers (ASHRAE) Standard 52.1-92.
—Initial Atmospheric Dust Spot Efficiency: 25.8%
—Average Atmospheric Dust Spot Efficiency: 32.0%
—Average Synthetic Dust Weight Arrestance: 92.0%
—ASHRAE Dust Holding Capacity: 55g
APPLICATION
The F35F Expandapac Media Air Cleaner captures a
significant amount of the airborne particles, 1.0 microns and
larger from the air circulated through the unit.
The above data is for a 16 x 25 in. filter.
Contents
Application...........................................................................
Features ..............................................................................
Ordering Information ...........................................................
Specifications ......................................................................
Planning the Installation ......................................................
Installation and Checkout ....................................................
Future Option ......................................................................
Replacement Parts..............................................................
1
1
2
3
4
7
9
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Expandapac™ and Ultra-Web® are Trademarks of Donaldson Company, Inc.
Copyright © 1998 Honeywell Inc.
•
All Rights Reserved
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F35F Expandapac™ MEDIA AIR CLEANER
Filter Media:
Expandapac.
SPECIFICATIONS
IMPORTANT
Temperature Rating:
-40°F to +125°F (-40°C to +52°C).
The specifications in this publication do not include
normal manufacturing tolerances; therefore, an
individual unit may not exactly match the listed
specifications. This product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
Capacity and Pressure Drop:
F35 FILTER PRESSURE DROP VS AIR FLOW RATE
0.30
1
0.25
0.20
0.15
0.10
0.05
0.00
Model:
F35F Expandapac Media Air Cleaner includes cabinet,
access door, Expandapac media filter, filter frame, and
combs.
Application:
Use with gas, oil, and electric forced warm air furnaces and
with compressor cooling. Can be used with heat pumps if
filter is changed regularly to prevent excessive pressure drop.
400
600
800
1000
AIRFLOW (cfm)
1200
1400
2
1600
1800 2000
20" X 25"
Arrestance Efficiency:
16" X 25"
AND 20" X 20"
Efficiency ratings are based on National Bureau of Standards
Dust Spot Method using atmospheric dust and American
Society of Heating, Refrigerating and Air-Conditioning
Engineers Standard 52.1-92.
1
2
WHEN FIRST INSTALLED. PRESSURE DORP INCREASES AS
FILTER BECOMES LOADED. FILTER SHOULD BE REPLACED
WHEN PRESSURE DROP REACHES 0.5 IN. WC (0.1 kPa).
—Initial Atmospheric Dust Spot Efficiency: 25.8%
—Average Atmospheric Dust Spot Efficiency: 32.0%
—Average Synthetic Dust Weight Arrestance: 92.0%
—ASHRAE Dust Holding Capacity: 55g
MAXIMUM CAPACITY BASED ON 500 fpm FACE VELOCITY.
M12002-A
Fig. 2. Capacity pressure drop of
F35 Expandapac Media Filter.
The above data is for a 16 x 25 in. filter.
The F35F removes particles as small as 1.0 microns.
Dimensions:
1-1/8 (29)
DIM B
(SEE TABLE)
DIM A
(SEE TABLE)
7/8 (22)
6-3/4 (171)
DIM C (SEE TABLE)
DIM D (SEE TABLE)
7/8 (22)
5/8
(16)
F35 SIZE
DIM A
DIM D
DIM B
DIM C
IN.
IN.
MM
IN.
MM
MM
IN.
MM
IN.
MM
406 X 635
508 X 635
508 X 508
16 X 25
20 X 25
20 X 20
14 7/16
18 7/16
18 7/16
367
468
468
16 3/16
20 3/16
20 3/16
411
513
513
23 1/4
23 1/4
18 1/4
591
591
457
25 1/2
25 1/2
20 1/2
648
648
521
M6931
Fig. 1. Installation dimensions in in. (mm) of air cleaner.
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F35F Expandapac™ MEDIA AIR CLEANER
Mounting:
Applications with a Humidifier
Mounts in any position in the return air duct next to the
furnace blower compartment. Airflow must be in the direction
of the arrow on the filter. Cabinet is sturdy enough to support
weight of a residential furnace and evaporator coil.
The media air filter is compatible with humidifiers. Avoid
applications where water mist can reach the media. If an
atomizing humidifier is used, the filter media will require
replacement more often because of minerals in the water.
Underwriters Laboratories, Inc.:
UL 900, Class 2 listed.
Choose Mounting Position
The media air cleaner can be mounted in any position, but the
arrow on the cartridge must point in the same direction as the
airflow. See Fig. 3-10 for proper location of the media air
cleaner for a variety of furnace installations. Note that the
media air filter cabinet is sturdy enough to easily support the
weight of the furnace and evaporator coil. See Fig. 4.
Upgrade Path:
The F35 uses the same cabinet as the F50 Electronic Air
Cleaner. Upgrade requires installing the cell key, electronic
cells, protective screens, and power box installation and wiring.
Accessory:
S830A Clogged Filter Indicator.
Replacement Parts:
Replace Expandapac media filter annually or more often if
reduced airflow results in lower heating/cooling equipment
performance. See Replacement Parts section for Media Filter
and Frame/Comb replacement part numbers.
PLANNING THE INSTALLATION
Location
Install the media air cleaner where all the air passing through
the system is circulated through it. The best location is in the
return air duct next to the blower compartment so the media air
filter can help to keep the blower motor and evaporator coils
clean. Do not mount in the supply air duct.
For most efficient air cleaning, spread airflow evenly across
the face of the media. If the duct is a different size than the
media air cleaner cabinet, gradual transitions are required. If
the duct turns sharply just before the air filter, turning vanes
are required (Fig.12).
M939A
Fig. 3. Highboy furnace, with side installation.
Media air cleaner is mounted vertically
where return enters side inlet of furnace.
Choose a location that is readily accessible for checking and
replacing the filter. Allow at least 26 in. (660 mm) clearance in
front of the unit for removal of the filter.
Install the media air cleaner where the temperature will not
exceed the ratings in the Specifications section.
Applications with Air Conditioning
Mount the media air filter upstream of the evaporator coil in a
cooling system. The filter will help to keep the coil clean and
reduce maintenance.
Applications with a Charcoal Filter
Add an activated charcoal filter to the air handling system to
remove gaseous (nonparticulate) contaminants from the
circulated air. A common residential application is to remove
odors that cannot be removed by mechanical air filters. The
activated charcoal filter, if used, should be installed
downstream from the media air cleaner to protect the
charcoal filter from lint and other particles.
M940A
Fig. 4 Highboy furnace, with installation
beneath furnace. Media air cleaner is mounted
horizontally where return enters from below.
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F35F Expandapac™ MEDIA AIR CLEANER
M6932-A
Fig. 5. Highboy furnace, with closet installation.
Media air cleaner is mounted vertically on
furnace between furnace and louvered
return air opening in closet door.
M943A
Fig. 7. Counterflow furnace, with media
air cleaner mounted horizontally in return
duct or plenum just above furnace.
M942A
Fig. 6. Lowboy furnace, with media air cleaner
mounted horizontally in return plenum just
above furnace and opposite heating plenum.
M944A
Fig. 8. Central fan installation, with media air cleaner
mounted horizontally in central return duct.
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F35F Expandapac™ MEDIA AIR CLEANER
Turning Vanes
If the media air cleaner is installed next to an elbow or angle
fitting, add turning vanes inside the angle to distribute airflow
more evenly across the face of the media. See Fig 12.
Offsets
If the duct connection to the furnace in a side installation
allows less than 7 in. (178 mm) for mounting media air
cleaner cabinet, attach an offset to the elbow. See Fig. 13.
M945A
DUCT SIZE CHANGED GRADUALLY TO PREVENT TURBULENCE.
20 DEGREE EXPANSION PER SIDE PER
FITTING (4 IN. PER RUNNING FOOT
[100 MM PER 300 LINEAR MM])
Fig. 9. Horizontal furnace, with media air cleaner mounted
vertically in return duct near furnace.
RETURN AIR
DUCT
TRANSITION FITTING
M947A
MEDIA AIR FILTER CABINET
Fig. 11. Duct size changed gradually
to prevent turbulence.
M946A
TURNING
VANES
Fig. 10.Two or more media air cleaners
used in a high capacity system.
Determining Sheet Metal Requirements
The media air cleaner is adaptable to all new or existing
forced air heating and cooling systems used in residential
applications. Transitions or turning vanes may be required in
some applications for effective media air cleaner operation.
Transitions
Transitions are needed when the duct is a different size than
the media air filter cabinet. Follow these guidelines when
fabricating:
1. Use gradual transitions to reduce air turbulence and
increase efficiency. See Fig. 11.
M5651
2. Use no more than 20 degrees (about 4 in. per running ft
[100 mm per 300 linear mm]) of expansion on each side
of a transition fitting.
Fig. 12.Turning vanes installed in bend help
distribute airflow evenly over face of media.
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F35F Expandapac™ MEDIA AIR CLEANER
Make sure that shop-fabricated sheet metal components,
such as turning vanes, are available.
Fasten the Cabinet to the Furnace
Align the cabinet with the return air opening. Place blocks under
the cabinet, as necessary, to make sure the unit is seated
securely. Create an opening in the furnace to match the cabinet
opening. Attach the cabinet securely to the furnace. Attach the
unit directly or fit a starting collar in the furnace opening. Either
drill holes and fasten with sheet metal screws or rivets, or use
slip joints. If you are drilling holes, use a locking pliers to help
hold the unit in place during drilling.
OFFSET
LESS
THAN
7 in.
(178 mm)
AT LEAST
7 in.
(178 mm)
1
Install Turning Vanes
Install turning vanes to help distribute air equally over the full
surface of the upstream side of the media. Install the vanes
whenever an abrupt 90 degree elbow is installed directly
against the media air cleaner cabinet.
1
REQUIRED TURNING VANES HELP DISTRIBUTE AIRFLOW EVENLY.
M948A
Fig. 13.Typical use of duct offset to
make room for media air cleaner.
Fasten Cabinet to Ductwork
Fasten the side of the cabinet to the ductwork using sheet
metal screws, rivets, or slip joints, as appropriate.
INSTALLATION AND CHECKOUT
Connect Ductwork
When Installing this Product…
Connect the vertical duct section to the elbow. If the vertical
drop of the duct is less than 7 in. (178 mm) from the side of
the furnace, shorten the horizontal trunk or attach an offset
fitting to the elbow. See Fig. 13. When ductwork is properly
aligned, connect the vertical duct to the horizontal trunk.
1. Read these instructions carefully. Failure to follow them
could damage the media air cleaner or cause a
hazardous condition.
2. Check the ratings given in the instructions and on the
media air cleaner to make sure the product is suitable
for your application.
3. Installer must be a trained, experienced service
technician.
Seal Joints
Seal all joints in the return air system between the media air
cleaner and the furnace to prevent dust from entering the
clean airstream.
Remove Furnace Filter and
Clean Blower Compartment
Assemble Expandapac Media Filter
1. Open the new media filter; expand it and set it upright
Before starting the installation, remove and discard the existing
furnace filter (if used). Thoroughly clean the blower
compartment. If possible, power vacuum the ductwork to
remove accumulated dust in an occupied home or remove
construction dirt in a new home. The media air filter cannot
remove dirt that has settled in the blower compartment and
distribution ducts.
on a flat surface.
2. Insert one end panel tab into the retainers on the frame.
Fold in the end panel flanges and push the tab
completely in, making sure the end panel flanges are
inside the frame flanges. See Fig. 14.
3. Repeat step 2 on the opposite corner.
Install the Cabinet
The following procedure describes a typical side installation
on an existing highboy furnace. Alternate procedures are
noted as appropriate. Other changes in installation
4. Flip over the assembly and repeat steps 2 and 3 on the
remaining two corners.
procedures may be necessary to complete your installation.
5. Lay the filter assembly down flat so the arrows point up.
Insert the combs as shown in Fig.15, aligning them with
the notches in the end panel flanges. Make sure the
combs are inserted completely.
Review the Installation Plan
Temporarily place the cabinet on the floor, oriented as it will
be when installed. Measure to make sure the plan allows
adequate clearance (at least 26 in. [660 mm]) for easy
removal and replacement of the filter.
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F35F Expandapac™ MEDIA AIR CLEANER
END PANEL
TAB
FRAME PANEL
RETAINER
Checkout
Visually check the installation. Make sure:
•
•
•
Airflow is in the direction of the arrow on the
Expandapac media air filter.
Turning vanes and transitions, if used, are properly
installed.
Joints in sheet metal between media air cleaner and
furnace are sealed.
•
•
All sheet metal connections are complete.
Original furnace filter was removed and blower
compartment was cleaned.
Replace any access doors removed during the Installation or
Checkout.
FRAME
FLANGE
Run the furnace or cooling system through one complete
cycle to make sure the system operates as desired.
END PANEL
FLANGE
FRAME
PANEL
Maintenance
Replace the media filter when pressure drop across the
media filter reaches 0.5 in. wc (0.1 kPa) or at least annually. If
the media air filter is installed downstream from an atomizing
humidifier or if the installation includes both heating and
cooling, more frequent replacement may be necessary.
Clogged media filter must be replaced promptly to avoid
restricting airflow and reducing efficiency of the heating-
cooling system. Record the replacement date in the space
provided on the replacement media filter.
Replace the Expandapac Media Filter as follows:
1. Remove the cabinet door and pull out the dirty filter
assembly.
FRAME
PANEL
M6934
2. Remove all the combs and two frame panels. Set them
aside. Dispose of the dirty filter.
Fig. 14. Assemble Expandapac media filter in frame.
3. Open the new media filter; expand it and set it upright
on a flat surface.
Install Expandapac Media Filter
4. Insert one end panel tab into the retainers on the frame.
Fold in the end panel flanges and push the tab
completely in, making sure the end panel flanges are
inside the frame flanges. See Fig. 15.
Slide the assembled Expandapac media filter into the cabinet,
making sure the arrow on the cartridge points in the direction
of the airflow.
Replace the access door. Insert the tab on the bottom of the
door into the slot in the cabinet. Swing the door closed and
press it into place.
5. Repeat step 4 on the opposite corner.
6. Flip over the assembly and repeat steps 4 and 5 on the
remaining two corners.
COMBS (3 OR 4,
DEPENDING ON
FILTER SIZE)
7. Lay the filter assembly down flat so the arrows point up.
Insert the combs as shown in Fig.16, aligning them with
the notches in the end panel flanges. Make sure the
combs are inserted completely.
8. Insert the new filter assembly into the cabinet and close
the door.
See Replacement Parts in the Specifications section. If desired,
install the S830A Clogged Filter Indicator to allow visual
indication of when the media needs replacing. Install and adjust
the S830A by following the instructions provided with the unit.
M6935
Fig.15. Insert combs in media filter.
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F35F Expandapac™ MEDIA AIR CLEANER
FUTURE OPTION
The F35F Expandapac Media Air Cleaner cabinet and filter
are designed to be easily upgraded to an F50 Electronic Air
Cleaner. An electronic air cleaner has the features to increase
the comfort and enjoyment of your home:
•
Captures up to 95% of airborne particles, 0.5 microns
and larger that pass through the unit.
•
Can save 10 to 15 percent in operating costs over the
life of your equipment. Honeywell offers an exclusive
10-year Clean Coil Guarantee.
•
•
Protects your expensive HVAC equipment.
No on-going filter replacements necessary because
cells can be washed and restored to top efficiency.
Increases home comfort.
•
•
•
Easy to maintain.
And it’s by Honeywell, a leader in indoor air quality
products for over 30 years.
High Efficiency Cleaning F50 Electronic Air Cleaner.
REPLACEMENT PARTS
3
1
2
M11200
F35F part numbers are keyed to parts list.
F35F Replacement Parts List
No. Description
16 x 25 in.
20 x 25 in.
203305AG (1)
FC35A1027
20 x 20 in.
203305AG (1)
FC35A1019
1
2
Access Door
203306AB (1)
Expandapac Media Air Filter. Must be ordered in
multiples of 6.
FC35A1001
3
Frame and Combs. Must be ordered in multiples of 6.
FC35B1018
FC35B1026
FC35B1000
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F35F Expandapac™ MEDIA AIR CLEANER
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Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis MN 55408-0524
Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
Honeywell Asia Pacific Inc.
Room 3213-3225
Sun Hung Kai Centre
No. 30 Harbour Road
Wanchai
M2H 3N7
Hong Kong
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1140 Brussels
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480 Sawgrass Corporate Parkway
Suite 200
Belgium
Sunrise FL 33325
Printed in U.S.A. on recycled
paper containing at least 10%
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