036-21120-002 Rev. A (1102)
6 Unitary Products Group
UNIT CLEARANCES TO COMBUSTIBLES
NOTE:1. Special floor base or air conditioning coil required for use on combustible floor.
NOTE:2. Line contact only permitted between lines formed by the intersection of the rear panel and side panel (top in horizontal position) of the furnace jacket and
building joists, studs or framing.
* Cabinet clearance is "0", vent clearance is required.
ACCESSORIES
Propane Conversion Kit (Standard) – 1NP0366
This accessory conversion kit may be used to convert natural
gas units for propane (LP) operation at altitudes 0-2,000 ft.
Conversion must be made by qualified distributor or dealer
personnel.
Propane Conversion Kit (High Altitude) – 1NP0367
This accessory conversion kit may be used to convert natural
gas units for propane (LP) operation at altitudes from 2,000 to
8,000 ft. Conversion must be made by qualified distributor or
dealer personnel.
Combustible Floor Base
This accessory is used for downflow applications on combus-
tible surfaces.
17-1/2" "B" Cabinets 1FB0318
21" "C" Cabinets 1FB0319
24-1/2" "D" Cabinets 1FB0320
Bottom External Filter Rack
This accessory is used to upflow/bottom return air applica-
tions. Packaged and sold in quantities of six (6).
17-1/2" "B" Cabinets 1BR0312BK
21" "C" Cabinets 1BR0316BK
24-1/2" "D" Cabinets 1BR0320BK
Application Top Front Rear Left Side
Right
Side
Flue
Floor /
Bottom
Closet Alcove Attic
Line
Contact
UPFLOW 1 6 0 0 0 6 COMBUSTIBLE YES YES YES NO
UPFLOW
B-VENT
1 2 0 0 0 1 COMBUSTIBLE YES YES YES NO
HORIZONTAL 0 6 0 0 1 6 COMBUSTIBLE NO YES YES
YES(See Note
2
)
HORIZONTAL
B-VENT
1 2 0 0 1 1 COMBUSTIBLE NO YES YES
YES(See Note
2
)
DOWNFLOW 1 6 0 0 5* 6
1" (See Note
1
)
YES YES YES NO
DOWNFLOW
B-VENT
12 0 0 01
1" (See Note
)
YES YES YES NO
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