Lennox G24M SERIES Instalation Instructions

Page 1

2000 Lennox Industries Inc.
Dallas, Texas
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
G24M Series 50HZ
GAS FURNACE
Direct Spark Ignition
503,876M
05/2000
Supersedes 03/99
Table of Contents
G24M Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . .
G24M Parts Arrangement 3. . . . . . . . . . . . . . . . . . . .
G24M Gas Furnace 3. . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List 3. . . . . . . . . . . . . . . . . . .
Requirements 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion, Dilution & Ventilation Air 5. . . . . . . . .
Setting Equipment 8. . . . . . . . . . . . . . . . . . . . . . . . . .
Duct System 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Venting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Start-up 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Pressure Adjustment 24. . . . . . . . . . . . . . . . . . .
High Altitude Information 24. . . . . . . . . . . . . . . . . . .
Other Unit Adjustments 24. . . . . . . . . . . . . . . . . . . . .
Service 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Parts List 27. . . . . . . . . . . . . . . . . . . . . . . . . . .
G24M Start-up & Performance Check List 27. . . .
Ignition Control Board Diagnostic Codes 28. . . . . .
Troubleshooting 29. . . . . . . . . . . . . . . . . . . . . . . . . . .
WHAT TO DO IF YOU SMELL GAS:
If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or loss of life.
WARNING
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
Installation and service must be perĆ
formed by a qualified installer, serĆ
vice agency or the gas supplier.
Do not try to light any appliance.
Do not touch any electrical switch; do not
use any phone in your building.
Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
If you cannot reach your gas supplier, call
the fire department.
Extinguish any open flames.
Litho USA

Lennox G24M SERIES Specifications

General

Brand	Lennox
Model	G24M SERIES
Category	Furnace
Language	English