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TABLE OF CONTENTS
1. SPECIFICATIONS ................................................................................... 3
2. OWNERS INFORMATION ....................................................................... 3
3. MANUFACTURER WARRANTY, OWNER RESPONSIBILITY .................3
4. INSTALLATION STANDARDS ................................................................. 5
5. UNIT LOCATION .....................................................................................6
6. MINIMUM CLEARANCES ........................................................................ 6
7. RETURN AIR PROVISIONS .................................................................... 6
8. AIR DISTRIBUTION SYSTEMS .............................................................. 8
9. ROOF JACK SELECTION ....................................................................... 8
10. DUCT CONNECTOR SELECTION ........................................................... 9
11. INSTALLATION ..................................................................................... 11
12. INSTALLATION OF TRANSIT-MODE VENTING SYSTEM ................... 14
13. ELECTRICAL WIRING ........................................................................... 15
14. FUEL PIPING ........................................................................................ 16
15. FLUE GAS SAMPLING.......................................................................... 19
16. LIGHTING AND FURNACE SHUT DOWN .............................................. 20
17. SERVICE GUIDE ................................................................................... 25
18. MAINTENANCE ..................................................................................... 30
19. OPTIONAL ACCESSORIES .................................................................. 31
20. WIRING DIAGRAMS ......................................................................... 34-39
21. EQUIVALENT ORIFICE SIZES AT HIGH ALTITUDES .......................... 40
Table 1. Model Identification
Door Color
W - White
G - Gray
Cabinet Dimensions
A - 56" x 19-3/4" x 23-3/4”
B - w/Coil Cavity,
76" x 19-3/4" x 23-3/4"
Electrical Code
A - 1PH, 60 Hz, 120 VAC
Heating Capacity
Input, BTUH (000’)
Application
M-Manufactured Home
Furnace Series
Fuel, Type of Combustion
G-Gas, Direct Vent, Pilot Burner
Natural or Forced Draft
M-Gas, Direct Vent, HSI,
Forced Draft
B-Gas, Direct Vent, Gun Burner
S-Oil, Direct Vent, Gun Burner
Comfort Model
H - Heating
A - Heating, A/C Ready
B - A/C Ready, 3 Ton
C - A/C Ready, 4 Ton
D - A/C Ready, 5 Ton
M 1 M B - 056 A - B W