Filters; Dimensions; Side Return Cutout Markings; Cabinet And Duct Dimensions - Johnson Controls TM8M/TMLM*MP Installation Manual

LEFT SIDE
28.5"
29.5"
(For Cladded door add appoximately an additional .75")
.5" 24.38"
B
.5"
20"
SUPPLY END
FIGURE 14: Dimensions
Table 3: Cabinet and Duct Dimensions
Nominal
BTUH (kW)
3
Input
CFM (m
60 (17.6) 1200 (34.0)
80 (23.4) 1200 (34.0)
80 (23.4) 1600 (45.3)
100 (29.3) 1600 (45.3)
100 (29.3) 2000 (56.6)
120 (35.1) 2000 (56.6)
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.
Table 4: Recommended Filter Sizes (High Velocity 600 FPM)
CFM Cabinet
(m³/min) Size
1200 (34.0) A
1200 (34.0) B
1600 (45.3) C
2000 (56.6) C
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.
Johnson Controls Unitary Products
Vent Connection
Outlet
Electrical
Entry
Gas Pipe
Entry
Thermostat
Wiring
4" Diameter
Vent Connection
Outlet
C
Cabinet
Size
/min)
A
A 14 1/2
B 17 1/2
C 21
C 21
C 21
C 21
Side Bottom
(in) (in)
16 x 25 14 x 25
16 x 25 16 x 25
16 x 25 20 x 25
(2) 16 x 25 20 x 25
FRONT
Electrical
Entry
Vent
Connection
Outlet
Gas Pipe
Entry
33"
Thermostat
Wiring
A
B
Cabinet Dimensions (Inches)
A (cm) B B (cm)
36.8 13 1/2 34.3
44.4 16 1/2 41.9
53.3 20 50.8
53.3 20 50.8
53.3 20 50.8
53.3 20 50.8
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 Figure 15.
FIGURE 15: 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 Figure 14.
368261-UIM-B-1008
RIGHT SIDE
23"
14"
1.5"
.5"
.5"
24.25"
RETURN END
Approximate
Operating Weights
C C (cm) Lbs
10.3 26.2 94
11.8 29.9 103
13.6 34.5 114
13.6 34.5 118
13.6 34.5 122
15.8 40.1 129
Front of
Furnace
Side of
Furnace
Corner
Markings
1"
9