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