Bryant Multipoise Condensing Gas 915S - Manual (Page 11)

11
RETURN AIR TEMPERATURE
This furnace is designed for continuous return--air minimum temperature of 60_F (15_C) db or intermittent operation down to 55_F (13_C)
db such as when used with a night setback thermometer. Return--air temperature must not exceed 80_F (27_C) db. Failure to follow these
return air limits may affect reliability of heat exchangers, motors and controls.
60
80 / 27˚C
/ 16˚C
SUPPLY AIR
A10490
MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
POSITION CLEARANCE
Rear 0 (0 mm)
Front (Combustion air openings in furnace and in structure) 1 in. (25 mm)
Required for service *24 in. (610 mm)
All Sides of Supply Plenum 1 in. (25 mm)
Sides 0 (0 mm)
Vent 0 (0 mm)
Top of Furnace 1 in. (25 mm)
* Recommended
COMBUSTION--AIR PIPE FOR NON--DIRECT (1--PIPE) VENT APPLICATION
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
PVC PIPE
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
TIGHT RADIUS
PVC 90
°
ELBOW
12” (300 mm) Minimum
A11487
915SA