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R80ESN/R80ESL(Series A): Installation, Start–Up, Operating and Service and Maintenance Instructions
Unit Size
CABINET WIDTH
0451412
14-3/16 (360)
0451712
17-1/2 (445)
0701412
14-3/16 (360)
0701712
17-1/2 (445)
0701716
17-1/2 (445)
0702116
0901714
17-1/2 (445)
0902116
0902120
0902420
24-1/2 (622)
1102120
1102420
24-1/2 (622)
1352420
24-1/2 (622)
*135 size furnace 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
Fig.
20). Bypass humidifier may be attached into unused return air
side of the furnace casing (see
furnaces are approved for side return air connections (see
Fig. 18 – Downflow Return Air Configurations and Restrictions
Fig. 19 – Upflow Return Air Configurations and Restrictions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
A
B
OUTLET WIDTH
12-9/16 (319)
15-7/8 (403)
12-9/16 (319)
15-7/8 (403)
15-7/8 (403)
21 (533)
19-3/8 (492)
15-7/8 (403)
21 (533)
19-3/8 (492)
21 (533)
19-3/8 (492)
22-7/8 (581)
21 (533)
19-3/8 (492)
22-7/8 (581)
22-7/8 (581)
Fig. 19
and
Fig.
20). Not all horizontal
Fig.
DOWNFLOW RETURN AIR CONFIGURATIONS AND RESTRICTIONS
Table 5 – Dimensions
C
TOP AND
BOTTOM FLUE
COLLAR
9-5/16 (237)
11-9/16 (294)
9-5/16 (237)
11-9/16 (294)
11-9/16 (294)
13-5/16 (338)
11-9/16 (294)
13-5/16 (338)
13-5/16 (338)
15-1/16 (383)
13-5/16 (338)
15-1/16 (383)
15-1/16 (383)
Fig. 19
20).
Fig. 20 – Horizontal Return Air Configurations and Restrictions
A02163
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.
A02075
14
D
VENT
BOTTOM
CONNECTION
INLET WIDTH
SIZE
12-11/16 (322)
4 (102)
16 (406)
4 (102)
12-11/16 (322)
4 (102)
16 (406)
4 (102)
16 (406)
4 (102)
19-1/2 (495)
4 (102)
16 (406)
4 (102)
19-1/2 (495)
4 (102)
19-1/2 (495)
4 (102)
23 (584)
4 (102)
19-1/2 (495)
4 (102)
23 (584)
4 (102)
23 (584)
4 (102)
GAS PIPING
SHIP WT. LB.
(KG)
104 (47)
119 (54)
114 (52)
120 (54)
126 (57)
142 (64)
131 (49)
137 (62)
140 (64)
146 (66)
146 (66)
161 (73)
167 (76)
A02162
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