E 2009 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
G61MP SERIES UNITS
GAS UNITS |
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506406−01 |
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08/2009 | Litho U.S.A. | |
Supersedes 505,124M | ||
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Table of Contents
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
G61MP Parts Identification . . . . . . . . . . . . . . . . . . . . . . 3
Shipping and Packing List . . . . . . . . . . . . . . . . . . . . . . 4
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Use of Furnace as Construction Heater . . . . . . . . . . . 5
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Combustion, Dilution & Ventilation Air . . . . . . . . . . . . 6
Installation − Setting Equipment . . . . . . . . . . . . . . . . . . 8
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pipe & Fittings Specifications . . . . . . . . . . . . . . . . . . . . 16
Vent Piping Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 18
Joint Cementing Procedure . . . . . . . . . . . . . . . . . . . . . 20
Venting Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Integrated Control Board . . . . . . . . . . . . . . . . . . . . . . . 42
Unit Start−Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Gas Pressure Adjustment . . . . . . . . . . . . . . . . . . . . . . 44
High Altitude Information . . . . . . . . . . . . . . . . . . . . . . . 45
Other Unit Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 46
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Ignition Control Board Diagnostic Codes . . . . . . . . . . 56
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Repair Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Vent Pipe Sizing Worksheet . . . . . . . . . . . . . . . . . . . . . 63
Start−Up & Performance Check List . . . . . . . . . . . . . . 63
WARNING |
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exact- ly could result in serious injury, death, or property damage.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other ap- pliance.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
WHAT TO DO IF YOU SMELL GAS:
DDo not try to light any appliance.
DDo not touch any electrical switch; do not use any phone in your building.
DLeave the building immediately.
DImmediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
DIf you cannot reach your gas supplier, call the fire department.
08/09 |
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