Air Filter Compartment
MAoCdeMl Nu/mAbCer B
With Media Filter
ACM1000
ACM1400
ACM1600
ACM2000
No Media Filter
ACB1000
ACB1400
ACB1600
ACB2000
OWNER’S MANUAL
• Installation
• Operation
• Technical Repair Guide
• Repair and Upgrade Parts
Please read and familiarize yourself with the contents of this manual before
installing, operating or performing maintenance on the unit.
White-Rodgers is a division
of Emerson Electric Co.
PART NO. 37-6383A
Replaces 846-2032-B
0206
Printed In U.S.A.
5" FILTER
HOW THE AIR FILTER WORKS
Dirty air flows through your return air ducts and enters the
compartment where particles (hair, lint, etc.) are removed
by the filter. See figure 1.
DIRTY AIR IN
FILTERED AIR OUT
Filtered air re-enters to the supply duct system of your
building.
Figure 1
CONSTRUCTION OF THE AIR FILTER COMPARTMENT
Not only is your air filter compartment easy to install, it is
also easy to maintain. Its basic components, and their
functions, are as follows: (See Figure 2)
AIR FILTER COMPARTMENT
5" FILTER
Air Filter Compartment- mounts to existing duct work and
houses the filters or optional electronic air cleaner
cells.
DOOR
NOTE: To upgrade your air filter compartment
with a high efficiency Electronic Air Cleaner, use
the ACR (Air Cleaner Retrofit) Kit for your model.
See page 7 for details.
5” Filter - collects dust, dirt and other particles.
Figure 2
3
PREINSTALLATION
LOCATING THE AIR FILTER
Your air filter must be mounted in the return air duct of a
central forced-air system, on the air entering side of your
furnace. (See Figure 3 for example.)
NOT TO EXCEED 20
AIR FLOW
THIS CABINET
CAN ACCEPT
ELECTRONIC
AIR CLEANER
OPTION
Select a location that meets the following:
1. The face of the filter will be at a right angle to the air
stream.
(SEE PAGE 7)
2. Allow 25” of clearance in front of the air filter compart-
ment door to permit removal of filters.
AIR FLOW
FURNACE
OPENING
See figure 4 for complete compartment dimen-
sions.
3. The air filter is not to be placed in the discharge of
either the heating or cooling unit.
AIR CLEANER
OPENING
4. IMPORTANT: If atomizing spray type humidifier is
used, it must be installed downstream from the air
filter.
AIR CLEANER
FURNACE
DUCTWORK
TRANSITION SECTION (IF NEEDED)
Figure 3
If furnace opening cannot be enlarged to required size, a
transition sheet metal section must be used. Transition
must be planned for each job. Reduction should not be
more than 4 inches per linear foot, approximately 20
angular degrees (Figure 3).
Model No.
A
B
C
D
E
ACB/ACM1000 20-1/4 12-5/8 13-9/16 16-7/16 19-1/16
ACB/ACM1400 26-1/4 23-5/8 13-9/16 16-7/16 19-1/16
ACB/ACM1600 20-1/4 12-5/8 17-3/4 20-5/8 23-3/8
ACB/ACM2000 26-1/4 23-5/8 17-3/4 20-5/8 23-3/8
Figure 4
4
TYPICAL MOUNTING POSITIONS
AIR FLOW
AIR FLOW
AIR FLOW
Figure 5
Figure 7
Figure 6
HIGHBOY FURNACE
(Figure 7)
BASEMENT FURNACE
(LOWBOY) (Figure 5)
COUNTERFLOW
FURNACE (Figure 6)
Side installation. Filter is
mounted vertically, where
return air enters side inlet
of furnace.
Filter is mounted horizon-
tally in return plenum, just
above furnace.
Filter is mounted horizontally
in return duct or plenum, just
above furnace.
LESS THAN
7 INCHES
HIGHBOY FURNACE
(Figure 8)
OFFSET
Installation beneath furnace.
Filter mounts horizontally,
where return air enters from
below. Raise furnace and in-
stall beneath base.
AT LEAST
9 INCHES
AIR FLOW
FIGURE 9
OFFSET INSTALLATION
(Figure 9)
Typical use of duct offset to match air filter opening.
If duct connection to furnace allows less than nine
inches for mounting the air filter, shorten the lateral
trunk, or attach an offset fitting to the elbow.
HORIZONTAL FURNACE
(Figure 10)
Filter is mounted vertically in
the return duct near furnace.
Figure 10
5
INSTALLATION
REMOVE OLD FILTER AND DISCARD
(Figure 11)
NOTE: This filter may be mounted in the furnace compart-
ment.
CLEAN BLOWER COMPARTMENT
NOTE: The air filter cannot remove dirt from blower and
ducts.
Figure 11
INSTALLATION
The following is a typical installation of the air filter on a
“Highboy” furnace (Figure 7).
1. Place the air filter compartment on the floor. Stand it
upright with the door facing you (Figure 2). If a
horizontal installation is being planned, lay the com-
partment on its side, this will help you to visualize the
relative location of all parts.
2. Unscrew the knob, remove the door (by grasping top
and pulling door away from compartment) and set it
aside. Remove 5” filter. Set in a safe location until the
compartment is installed.
3. Set the compartment next to the furnace (if possible)
to match the opening in the compartment.
If the furnace opening cannot be enlarged, a transi-
tion fitting should be used. (Figure 3).
The compartment can be attached directly (Figure
12), or a starting collar can first be fitted to the furnace
inlet. A butt or slip joint can be used.
Securely attach the compartment to furnace inlet,
using at least two of the mounting holes on each side
of the compartment.
Turning
Vanes
Air Flow
4. Using butt joint, attach duct work (normally an elbow)
to the upstream side of air filter compartment. (Note
the use of the sheet metal turning vanes inside the
elbow to improve air distribution.) (Figure 13)
NOTE: An optional method of attaching duct work to the
air filter cabinet is to modify the compartment (Figure 14)
by bending the tabs outward at a 90° angle and attaching
duct work to tabs.
Figure 13
Transition Fittings
If the air duct does not fit the compartment opening, a
transition fitting should be used. Gradual transitions are
preferred for greatest efficiency. Not more than four
inches per linear foot (approximately 20° angle) should be
allowed (Figure 3).
5. Connect the vertical duct section to the elbow. Wedge
a wood block between floor and elbow for support
(Figure 15).
Optional method
(Bend tabs outward at 90˚ angle)
Figure 14
6. Seal all joints in the return air system downstream
from the air filter with duct tape to prevent dust from
entering the air stream. Tape is usually applied on the
outside of ducts, but may also be applied on the
inside, or both.
7. With the air filter compartment installed, re-install 5”
filter and door. (Figure 2)
6
FLOOR
Vertical
Section
CONDUIT
Tape All
Joints
Wood Block
DUCT
Figure 15
AIR CLEANER
Figure 16
MAINTENANCE
1. Removedoorfromairfiltercompartmentbyunscrew-
ing the knob.
! CAUTION
▲
The fiber filter used in this compartment for air
cleaning must be replaced every 90 days. Your
heating and cooling efficiency will decrease due
to insufficient air flow when filter becomes dirty.
2. Remove 5” filter and throw away.
3. Replace 5” filter by sliding it into the compartment.
(Note direction of air flow.)
4. Replace door.
For maximum efficiency, your air filter should be in-
spected once a month and changed if dirt loading is
heavy. When changing is required, the following proce-
dure should be used:
REPAIR and UPGRADE PARTS
PARTS LIST FOR
AIR FILTER COMPARTMENT
When ordering repair parts, always give the following
information as shown in this list.
1
2
3
1
1. The PART NUMBER
2. The PART DESCRIPTION
3. The MODEL NUMBER of the Air Filter Compart-
ment
Always order by “PART NUMBER” . . .
Not by “ITEM NUMBER”
Part Number
Item
No.
Description
Compartment & Door
Filters 5”
1000
1400
1600
2000
1
2
3
ACB1000 ACB1400 ACB1600 ACB2000
FR1000 FR1400 FR1600 FR2000
F870-0026 F870-0026 F870-0026 F870-0026
Screw, Fastener
Description
1000
1400
1600
2000
Electronic Air Cleaner Retrofit Kit ACR1000 ACR1400 ACR1600 ACR2000
ELECTRONIC AIR CLEANER KIT
7
NOTICE TO CONSUMERS
White-Rodgers
Electronic Air Cleaner
Dear Consumer;
White-Rodgers would like to thank you for purchasing a White-Rodgers Electronic Air
Cleaner or product containing a White-Rodgers Electronic Air Cleaner. Although White-
Rodgers does not extend a warranty directly to consumers, White-Rodgers does extend a
warranty to Wholesalers and Original Equipment Manufacturers who use White-Rodgers
Products. To obtain more information about how your Wholesaler or Original Equipment
Manufacturer’s warranty may benefit you, please contact your Wholesaler or Original
Equipment Manufacturer.
Sincerely,
White-Rodgers
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
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