White Rodgers pmnACM/ACB owner manual Preinstallation, Locating The Air Filter, Model No

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

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 compart-
	ment door to permit removal of filters.
	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.
4.	IMPORTANT: If atomizing spray type humidifier is

AIR FLOW

FURNACE OPENING

THIS CABINET CAN ACCEPT ELECTRONIC AIR CLEANER OPTION (SEE PAGE 7)

AIR FLOW

AIR CLEANER OPENING

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).

	FURNACE	AIR CLEANER	DUCTWORK
	TRANSITION SECTION (IF NEEDED)
	F	Figure 3
D	C	B	E
		A

Figure 4

Model No.	A	B	C	D	E	F
ACB/ACM1000	20-1/4	12-5/8	13-9/16	16-7/16	19-1/16	6-7/8
ACB/ACM1400	26-1/4	23-5/8	13-9/16	16-7/16	19-1/16	6-7/8
ACB/ACM1600	20-1/4	12-5/8	17-3/4	20-5/8	23-3/8	6-7/8
ACB/ACM2000	26-1/4	23-5/8	17-3/4	20-5/8	23-3/8	6-7/8
ACM1200TM	24-5/8	21-29/32	13-1/2	16-15/32	12-13/32	4-15/16
ACM2000U	24-5/16	22-5/16	17-3/16	20-3/16	21-5/32	6-7/8
ACM2000X	24-5/16	22-5/16	17-3/16	20-3/16	21-5/32	6-7/8

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