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Lennox F8AUH User's Information Manual
Lennox F8AUH User's Information Manual

Lennox F8AUH User's Information Manual

Up-flow / horizontal gas furnaces
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Библиотека СОК 
Table of Contents
Model Number Identification
Furnace
AFUE
Generation
Configuration
Do not store or use gasoline or oth
er 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.
Gas Furnaces – Up-Flow / Horizontal
45,000 to 120,000 Btuh (13.2 to 35.2 kW) Heating Capacity
1 through 5 Tons (3.5 to 17.6 kW) Add-On Cooling
User's Information Manual
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
F
8
A
UH
*
*
–24
Cabinet Color
FBR 113270
F8AUH
–045
X
2
V
Gas Valve
Btuh Input (kW)
Door Color
WARNING
If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or death.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Extinguish any open flames.
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 suppli
er's instructions.
If you cannot reach your gas supplier, call
the fire department.
1
NOTE - Shaded area denotes part of
model no. referenced in publication.
Blower Motor
Options
Additive Cooling (Nominal)
1999

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Summary of Contents for Lennox F8AUH

  • Page 1 Библиотека СОК  F8AUH Gas Furnaces – Up-Flow / Horizontal 45,000 to 120,000 Btuh (13.2 to 35.2 kW) Heating Capacity 1 through 5 Tons (3.5 to 17.6 kW) Add-On Cooling User’s Information Manual RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE Table of Contents...
  • Page 2: Parts Identification

    PARTS IDENTIFICATION 1 - COMBUSTION AIR BLOWER 2 - PRESSURE SWITCH 3 - BURNERS 4 - HEAT EXCHANGER 5 - GAS VALVE 6 - CONTROL BOARD 7 - BLOWER WARNING CAUTION Before attempting to perform any service or mainte Product contains fiberglass wool.Disturbing the nance, turn the electrical power to unit OFF at dis insulation in this product during installation, connect switch.
  • Page 3 Force or attempted repair may result in a fire toxic. or explosion. Placing furnace into operation: F8AUH units are equipped with an electronic ignition system. Do not attempt to manually light burners on these furnaces. Each time thermostat calls for heat, the burner will automatically light.
  • Page 4 White Rodgers 36E Gas Valve - To Turn Off Gas To Unit Honeywell VR8205 Gas Valve - WHITE RODGERS 36E SERIES GAS VALVE Filters GAS VALVE SHOWN IN OFF POSITION FIGURE 2 HONEYWELL VR8205 SERIES GAS VALVE Figures 4 and 5 show possible filter locations.
  • Page 5: Burner Flame

    Venting System Inspection UPFLOW FURNACE SIDE RETURN AIR Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burn ers for corrosion, deterioration, or deposits of debris. Remove any obstructions. Contact your dealer for a periodic unit inspection by a qualified service technician.
  • Page 6 Unit appearance Fan access door Return air duct Operating performance Combustion gases Planned Service Fresh air grilles and louvers Pay attention to your furnace. Burners Vent pipe...