800SA/801SA: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
14
*135 and 155 size furnaces requires a 5 or 6-in. (127 or 152 mm) vent. Use a vent adapter between furnace and vent stack. See Installation Instructions for complete installation requirements.
Upflow Furnaces
The return-air duct must be connected to bottom, sides (left or right), or a
combination of bottom and side(s) of main furnace casing (see
and
). Bypass humidifier may be attached into unused return air
side of the furnace casing (see
and
). Not all horizontal
furnaces are approved for side return air connections (see
).
A02163
Fig. 18 – Downflow Return Air Configurations and Restrictions
A02075
Fig. 19 – Upflow Return Air Configurations and Restrictions
A02162
Fig. 20 – Horizontal Return Air Configurations and Restrictions
GAS PIPING
Gas piping must be installed in accordance with national and local
codes. Refer to current edition of NFGC.
Installations must be made in accordance with all authorities having
jurisdiction. If possible, the gas supply line should be a separate line
running directly from meter to furnace.
NOTE:
In the state of Massachusetts:
1. Gas supply connections MUST be performed by a licensed plumber or gas
fitter.
2. When flexible connectors are used, the maximum length shall not exceed 36
inches (915 mm).
3. When lever handle type manual equipment shutoff valves are used, they
shall be T-handle valves.
4. The use of copper tubing for gas piping is NOT approved by the state of
Massachusetts.
Table 5 – Dimensions
Unit Size
A
CABINET WIDTH
B
OUTLET WIDTH
C
TOP AND
BOTTOM FLUE
COLLAR
D
BOTTOM
INLET WIDTH
VENT
CONNECTION
SIZE
SHIP WT. LB.
(KG)
36045E14
14-3/16 (360)
12-9/16 (319)
9-5/16 (237)
12-11/16 (322)
4 (102)
104 (47)
36045E17
17-1/2 (445)
15-7/8 (403)
11-9/16 (294)
16 (406)
4 (102)
119 (54)
36070E14
14-3/16 (360)
12-9/16 (319)
9-5/16 (237)
12-11/16 (322)
4 (102)
114 (52)
36070E17
17-1/2 (445)
15-7/8 (403)
11-9/16 (294)
16 (406)
4 (102)
120 (54)
48070E17
17-1/2 (445)
15-7/8 (403)
11-9/16 (294)
16 (406)
4 (102)
126 (57)
48070E21
21 (533)
19-3/8 (492)
13-5/16 (338)
19-1/2 (495)
4 (102)
142 (64)
42090E17
17-1/2 (445)
15-7/8 (403)
11-9/16 (294)
16 (406)
4 (102)
131 (49)
48090E21
21 (533)
19-3/8 (492)
13-5/16 (338)
19-1/2 (495)
4 (102)
137 (62)
60090E21
21 (533)
19-3/8 (492)
13-5/16 (338)
19-1/2 (495)
4 (102)
140 (64)
60090E24
24-1/2 (622)
22-7/8 (581)
15-1/16 (383)
23 (584)
4 (102)
146 (66)
60110E21
21 (533)
19-3/8 (492)
13-5/16 (338)
19-1/2 (495)
4 (102)
146 (66)
60110E24
24-1/2 (622)
22-7/8 (581)
15-1/16 (383)
23 (584)
4 (102)
161 (73)
60135E24
24-1/2 (622)
22-7/8 (581)
15-1/16 (383)
23 (584)
4 (102)
167 (76)
60155E24
24-1/2 (622)
22-7/8 (581)
15-1/16 (383)
23 (584)
4 (102)
168 (76)
DOWNFLOW RETURN AIR CONFIGURATIONS AND RESTRICTIONS
