Media Air Cleaner
With Media Filter
Model Number
ACM1000M-XXX
ACM1400M-XXX
ACM1600M-XXX
ACM2000M-XXX
OWNERS MANUAL
• Installation
• Operation
• Maintenance
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. 37-7001A
0922
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.
4" FILTER
Filtered air re-enters to the supply duct system of your
building.
DIRTY AIR IN
FILTERED AIR OUT
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 Cabinet – mounts to existing duct work and houses the filters
4” Filter – collects dust, dirt and other particles.
AIR FILTER CABINET
FILTER
SCREW
LATCH
DOOR
Figure 2
3
PREINSTALLATION
3. The air filter is not to be placed in the discharge of either the
heating or cooling unit.
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).
4. IMPORTANT: If atomizing spray type humidifier is used, it
must be installed downstream from the air filter.
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).
Select a location that meets the following:
1. The face of the filter will be at a right angle to the air
stream.
2. Allow 25” of clearance in front of the air filter compartment
door to permit removal of filters.
See figure 4 for complete compartment dimensions.
AIR FLOW
NOT TO EXCEED 20°
DUCTWORK
FURNACE
OPENING
AIR FLOW
C
AIR CLEANER
OPENING
TRANSITION SECTION
(IF NEEDED)
AIR CLEANER
FURNACE
B
LOCATING THE AIR FILTER
AN AIR FILTER MUST BE MOUNTED IN THE RETURN AIR DUCT OF A CENTRAL
FORCED-AIR SYSTEM, ON THE AIR ENTERING SIDE OF FURNACE.
Figure 3
A
Figure 4
A
B
C
Model NO.
CFM RATING
LENGTH HEIGHT WIDTH
ACM1000M-XXX 19-13/16
ACM1400M-XXX 24-13/16
ACM1600M-XXX 19-13/16
ACM2000M-XXX 24-13/16
18-5/16
18-5/16
22-5/16
22-5/16
5-7/16
5-7/16
5-7/16
5-7/16
600 TO 1200
1000 TO 1600
1200 TO 1800
1800 TO 2200
4
TYPICAL MOUNTING POSITIONS
AIR FLOW
AIR FLOW
Figure 5
Figure 6
BASEMENT FURNACE
(LOWBOY)
COUNTERFLOW
FURNACE
Filter is mounted horizontally
in return plenum, just above
furnace.
Filter is mounted horizontally
in return duct or plenum, just
above furnace.
AIR FLOW
Figure 7
Figure 8
HIGHBOY FURNACE
HIGHBOY FURNACE
Side installation. Filter is
mounted vertically, where
return air enters side inlet of
furnace.
Installation beneath furnace.
Filter mounts horizontally,
where return air enters from
below. Raise furnace and
install beneath base.
AIR FLOW
LESS THAN
7 INCHES
OFFSET
AT LEAST
9 INCHES
Figure 10
Figure 9
OFFSET INSTALLATION
HORIZONTAL FURNACE
Filter is mounted vertically in the return duct
near furnace.
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.
5
INSTALLATION
REMOVE OLD FILTER AND DISCARD
(Figure 11)
NOTE: This filter may be mounted in the furnace compartment.
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 compartment on its side, this will
help you to visualize the relative location of all parts.
Frame
Duct
2. Remove the door (by grasping top and pulling door away
from compartment) and set it aside. Remove 4” filter by
grasping it at the top and bottom. Set in a safe location until
the cabinet 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 transition
fitting should be used. (Figure 3).
Mounting
Holes
Figure 12
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
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)
Air Flow
Transition Fittings
Figure 13
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 14).
Vertical
Section
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.
Tape All
Joints
7. With the air filter compartment installed, re-install 4” filter
and door. (Figure 2)
Wood Block
Figure 14
MAINTENANCE
For maximum efficiency, your air filter should be inspected once
a month and changed if dirt loading is heavy.When changing is
required, the following procedure should be used.
1. Remove door from air filter compartment.
2. Remove 4” filter and discard.
CAUTION
!
The fiber filter used in this cabinet for air cleaning
must be replaced every 90 to 180 days. Your heating
and cooling efficiency will decrease due to insufficient
air flow when filter becomes dirty.
3. Insert new 4” filter by sliding it into the compartment.
(Note direction of air flow.)
4. Replace door.
6
NOTES
7
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
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