PRODUCT LITERATURE
E2005 Lennox Industries Inc.
Dallas, Texas
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
UPFLOW GAS FURNACE Direct Spark Ignition 503,613M
8/2005
Supersedes 7/2003 | Litho USA |
|
Table of Contents
G24−200 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . 2
G24−200 Parts Arrangement . . . . . . . . . . . . . . . . . . . . 4
G24−200 Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipping and Packing List . . . . . . . . . . . . . . . . . . . . . . 6
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Combustion, Dilution & Ventilation Air . . . . . . . . . . . . 8
Setting Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Return Air Plenum / Filter Box Installation . . . . . . . . 11
Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Blower Motor and Drive Installation . . . . . . . . . . . . . 13
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Unit Start−up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Heating Sequence of Operation . . . . . . . . . . . . . . . . 34
Gas Pressure Adjustment . . . . . . . . . . . . . . . . . . . . . 35
High Altitude Information . . . . . . . . . . . . . . . . . . . . . . 35
Other Unit Adjustments and Operation . . . . . . . . . . . 35
Setting Blower CFM . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Repair Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
G24−200 Start−up & Performance Check List . . . . . 39
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
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 appliance.
Installation and service must be per- formed by a qualified installer, ser- vice agency or the gas supplier.
WHAT TO DO IF YOU SMELL GAS:
SDo not try to light any appliance.
SExtinguish any open flame.
SDo not touch any electrical switch; do not use any phone in your building.
SLeave the building immediately.
SImmediately call your gas supplier from a neighbor’s phone. Follow the gas suppli- er’s instructions.
SIf you cannot reach your gas supplier, call the fire department.
08/05 | 503,613M |
*2P0805* | *P504613M* |
