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*2P0110*
506176−01
*P506176-01*
E 2008 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
G60UH(X) Series
GAS FURNACE
506176−01
1/2010
Supersedes 10/2009
Table of Contents
Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G60UH(X) Parts Arrangement 3. . . . . . . . . . . . . . . . . . . . .
G60UH(X) Gas Furnace 4. . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List 4. . . . . . . . . . . . . . . . . . . . . . . .
Safety Information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Use of Furnace as a Construction Heater 5. . . . . . . . . . .
General 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion, Dilution & Ventilation Air 6. . . . . . . . . . . . . .
Setting Equipment 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filters 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct System 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Venting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Control 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Start−Up 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Pressure Adjustment 31. . . . . . . . . . . . . . . . . . . . . . .
High Altitude Information 31. . . . . . . . . . . . . . . . . . . . . . . .
Other Unit Adjustments 32. . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Performance 33. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Sequence of Operation 35. . . . . . . . . . . . . . . . . .
Service 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Planned Service 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Control Diagnostic Codes 38. . . . . . . . . . . . . .
Troubleshooting 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Parts List 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up & Performance Check List 46. . . . . . . . . . . . . . .
WHAT TO DO IF YOU SMELL GAS:
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.
D Do not try to light any appliance.
D Do not touch any electrical switch; do not
use any phone in your building.
D Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
D If you cannot reach your gas supplier, call
the fire department.
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exact-
ly could result in serious injury, death,
or property damage.
WARNING
D Leave the building immediately.
Litho U.S.A.