Johnson Controls TM9V MP installation manual Section III Filters, Filter Installation, Side Return

438335-UIM-B-0509

LEFT SIDE

Combustion Air Inlet

Condensate Drain	Gas Pipe
(Downflow)	Entry
Vent Outlet	Electrical
	Entry
	Condensate
	Drain
	Thermostat
	Wiring
28.5”
29.5”

(For Cladded door add appoximately an additional .75”)

FRONT

A

		RIGHT SIDE
		Combustion Air Inlet
	Gas Pipe	Condensate Drain
	Entry	(Downflow)
	Electrical
	Entry	Vent Outlet
33	Condensate	23”
	Drain
	Thermostat	Optional Return Air
	Wiring		14”
		Cutout (Either side)
			1”
		1.5”

.56”	23.8”	3”
		Vent
		Outlet
B	Combustion
	Air Inlet
		C
.56”	.56”
	20”

SUPPLY END

B

24.25”

RETURN END

FIGURE 12: Dimensions

Table 3: Cabinet and Duct Dimensions

BTUH (kW)	Nominal	Cabinet		Cabinet Dimensions (Inches)					Approximate
									Operating Weights
Input	CFM (m3/min)	Size
			A (in)	A (cm)	B (in)	B (cm)	C (in)	C (cm)	Lbs (kg)
60 (17.6)	1200 (34.0)	B	17 1/2	44.4	16 3/8	41.6	13 1/4	33.7	122 (55.3)
80 (23.4)	1200 (34.0)	B	17 1/2	44.4	16 3/8	41.6	14 3/4	37.5	126 (57.1)
80 (23.4)	1600 (45.3)	C	21	53.3	19 7/8	50.5	16 1/2	41.9	136 (61.7)
100 (29.3)	1600 (45.3)	C	21	53.3	19 7/8	50.5	18 1/4	46.4	142 (64.4)
100 (29.3)	2000 (56.6)	C	21	53.3	19 7/8	50.5	18 1/4	46.4	145 (65.8)
120 (35.1)	2000 (56.6)	D	24 1/2	62.2	23 3/8	59.4	21 3/4	55.2	156 (70.7)

SECTION III: FILTERS

FILTER INSTALLATION

All applications require the use of a field installed filter. All filters and mounting provision must be field supplied.

Filters must be installed external to the furnace cabinet. DO NOT

attempt to install filters inside the furnace.

NOTE: Single side return above 1800 CFM is approved as long as the filter velocity does not exceed filter manufacturer’s recommendation and a transition is used to allow use on a 20x25 filter.

Table 4: Recommended Filter Sizes (High Velocity 600 FPM)

CFM	Cabinet	Side	Bottom
(m³/min)	Size	(in)	(in)
1200 (34.0)	B	16 x 25	16 x 25
1600 (45.3)	C	16 x 25	20 x 25
2000 (56.6)	C	(2) 16 x 25	20 x 25
2000 (56.6)	D	(2) 16 x 25	22 x 25

NOTES:

1.Air velocity through throwaway type filters may not exceed 300 feet per minute (91.4 m/min). All velocities over this require the use of high velocity filters.

2.Do not exceed 1800 CFM using a single side return and a 16x25 filter. For CFM greater than 1800, you may use two side returns or one side and the bottom or one side return with a transition to allow use of a 20x25 filter.

SIDE RETURN

Locate the “L” shaped corner locators. These indicate the size of the cut- out to be made in the furnace side panel. Refer to Figures 13.

Front of

Furnace

Side of

Furnace

Corner

Markings

FIGURE 13: Side Return Cutout Markings

Install the side filter rack following the instructions provided with that accessory. If a filter(s) is provided at another location in the return air system, the ductwork may be directly attached to the furnace side panel.

Some accessories such as electronic air cleaners and pleated media may require a larger side opening. Follow the instructions supplied with that accessory for side opening requirements. Do not cut the opening larger than the dimensions shown in Figures 12.

8 Johnson Controls Unitary Products