Furnace Specifications ............................................................................................................. 3
Safety Information ............................................................................................................. 3
Installation Requirements ........................................................................................................ 5
General ............................................................................................................................. 7
Air From Inside ....................................................................................................... 8
Venting Requirements .............................................................................................................. 9
General ............................................................................................................................. 9
Circulating Air Supply ............................................................................................................ 11
General ........................................................................................................................... 11
Return Air ........................................................................................................................ 12
Gas Supply and Piping ........................................................................................................... 12
General ........................................................................................................................... 13
Leak Check .................................................................................................................... 13
Conversion ..................................................................................................................... 15
High Altitude Conversion ...................................................................................................... 15
High Altitude Application ................................................................................................. 15
Electrical Wiring ....................................................................................................................... 16
General ........................................................................................................................... 16
Line Voltage Wiring ......................................................................................................... 16
Low Voltage Wiring ......................................................................................................... 18
Start-up and Adjustments ..................................................................................................... 18
General ........................................................................................................................... 18
Start-up Procedures ....................................................................................................... 19
Wiring Diagram ........................................................................................................................ 20
Description of Components .................................................................................................. 23
Maintenance ............................................................................................................................. 23
Vent System ................................................................................................................... 23
Air Filter(s) ...................................................................................................................... 24
Lubrication ....................................................................................................................... 24
Blower Compartment ...................................................................................................... 24
Cleaning of Burners ........................................................................................................ 25
General ........................................................................................................................... 25
Sequence of Operation .................................................................................................. 26
Heating Mode ....................................................................................................... 26
Cooling Mode ........................................................................................................ 26
Fan Mode ............................................................................................................. 27
Furnace Fails to Operate ............................................................................................... 27
Twinning .......................................................................................................................... 27
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Table of Contents