2
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 Identifi cation
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