Return Air Temperature; Minimum Clearances To Combustible Materials - Carrier Comfort 59SC5B Product Data

59SC5B: Product Data

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.
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.
SUPPLY AIR
MINIMUM CLEARANCES TO COMBUSTIBLE
MATERIALS
POSITION
Rear
Front (Combustion air openings in
furnace and in structure)
*
Required for service
All Sides of Supply Plenum
Sides
Vent
Top of Furnace
*. Consult your local building codes
†. Recommended
COMBUSTION-AIR PIPE FOR NON-DIRECT
(1-PIPE) VENT APPLICATION
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
MITERED RADIUS
PVC 90° ELBOW
NOTE: See Installation Instructions for specific venting configurations.
FURNACE
CASING FURNACE IN DOWNFLOW APPLICATION
WIDTH
Furnace with or without Cased Coil Assembly or
14­3/16 (360)
Furnace with or without Cased Coil Assembly or
17­1/2 (445)
Furnace with or without Cased Coil Assembly or
21 (533)
Furnace with or without Cased Coil Assembly or
24­1/2 (622)
*. The plenum should be constructed 1/4-in. (6 mm) smaller in width and depth than the plenum dimensions shown above.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Return-air
CLEARANCE
0 (0 mm)
1 in. (25 mm)
†
24 in. (610 mm)
*
1 in. (25 mm)
0 (0 mm)
0 (0 mm)
1 in. (25 mm)
FIELD-SUPPLIED
2-IN. (51 mm) DIA.
PVC PIPE
12" (300 mm) MINIMUM
Coil Box
Coil Box
Coil Box
Coil Box
DOWNFLOW SUBBASE
80 / 27˚C
FACTORY-SUPPLIED
FIELD-INSTALLED
INSULATION
60 / 16˚C
A10490
LOCATING
TAB
One base fits all furnace sizes. The base is designed to be installed
between the furnace and a combustible floor when no coil box is used or
when a coil box other than a Carrier cased coil is used. It is CSA design
certified for use with Carrier branded furnaces when installed in
downflow applications.
A12376
DIMENSIONS (IN. / MM)
*
PLENUM OPENING
A B
11­3/16 (322) 19 (483)
15­1/8 (384) 19 (483)
18­5/8 (396) 19 (483)
22­1/8 (562) 19 (483)
15
1
1 / 4-IN. TYP
A
LOCATING
TAB
B
D
1
Downflow Subbase
FLOOR OPENING
C D
13­7/16 (341) 20­5/8 (600)
16­3/4 (426) 20­5/8 (600)
20­1/4 (514) 20­5/8 (600)
23­3/4 (603) 20­5/8 (600)
PLENUM
OPENING
C
A97427
4
3
2
1
2
3
4
A88207
A88202
HOLE NO. FOR
WIDTH
ADJUSTMENT
4
3
2
1