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364861-UIM-B-0708
LEFT SIDE
Combustion Air Inlet
Condensate Drain
(Downflow)
Vent Outlet
28.5"
29.5"
(For Cladded door add appoximately an additional .75")
.56"
23.8"
Combustion
B
Air Inlet
.56"
.56"
20"
SUPPLY END
FIGURE 12: Dimensions
Table 3: Cabinet and Duct Dimensions
Nominal
BTUH (kW)
3
Input
CFM (m
40 (11.7)
800 (22.7)
60 (17.6)
1000 (28.3)
60 (17.6)
1200 (34.0)
80 (23.4)
1200 (34.0)
80 (23.4)
1600 (45.3)
80 (23.4)
2200 (62.3)
100 (29.3)
1600 (45.3)
100 (29.3)
2000 (56.6)
120 (35.1)
1600 (45.3)
120 (35.1)
2000 (56.6)
130 (38.1)
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.
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.
8
Gas Pipe
Entry
Electrical
Entry
Condensate
Drain
Thermostat
Wiring
3"
Vent
Outlet
C
Cabinet
Size
/min)
A
A
14 1/2
A
14 1/2
B
17 1/2
B
17 1/2
C
21
C
21
C
21
C
21
D
24 1/2
D
24 1/2
D
24 1/2
FRONT
Gas Pipe
Entry
Electrical
Entry
33
Condensate
Drain
Thermostat
Wiring
A
Cabinet Dimensions (Inches)
A (cm)
B
B (cm)
36.8
13 3/8
34.0
36.8
13 3/8
34.0
44.4
16 3/8
41.6
44.4
16 3/8
41.6
53.3
19 7/8
50.5
53.3
19 7/8
50.5
53.3
19 7/8
50.5
53.3
19 7/8
50.5
62.2
23 3/8
59.4
62.2
23 3/8
59.4
62.2
23 3/8
59.4
Table 4: Recommended Filter Sizes (High Velocity 600 FPM)
CFM
(m³/min)
800 (22.7)
1000 (28.3)
1200 (34.0)
1200 (34.0)
1600 (45.3)
1600 (45.3)
2000 (56.6)
2200 (62.3)
2000 (56.6)
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.
RIGHT SIDE
Combustion Air Inlet
Condensate Drain
(Downflow)
Vent Outlet
23"
Optional Return Air
Cutout (Either side)
1.5"
24.25"
RETURN END
Operating Weights
C
C (cm)
11 3/4
29.8
11 3/4
29.8
13 1/4
33.7
14 3/4
37.5
16 1/2
41.9
16 1/2
41.9
18 1/4
46.4
18 1/4
46.4
21 3/4
55.2
21 3/4
55.2
No Hole
No Hole
Cabinet
Side
Size
(in)
A
16 x 25
A
16 x 25
A
16 x 25
B
16 x 25
B
16 x 25
C
16 x 25
C
(2) 16 x 25
C
(2) 16 x 25
D
(2) 16 x 25
Johnson Controls Unitary Products
14"
1"
B
Approximate
Lbs
113
118
122
126
136
139
142
145
153
156
160
Bottom
(in)
14 x 25
14 x 25
14 x 25
16 x 25
16 x 25
20 x 25
20 x 25
20 x 25
22 x 25
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