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Lennox G40UH Series User Manual

Lennox G40UH Series
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Page 23
TYPICAL G40UH(X) FIELD WIRING DIAGRAM
FIGURE 24
FIGURE 25
INTEGRATED CONTROL BOARD
(Automatic Hot Surface Ignition System)
TERMINAL DESIGNATIONS
HUM
LINE
XFMR
EAC
COOL
HEAT
PARK
FLAME
NEUTRALS
Humidifier (120VAC)
Input (120VAC)
Transformer (120VAC)
Electronic Air Cleaner (120VAC)
Blower − Cooling Speed (120VAC)
Blower − Heating Speed (120VAC)
Dead terminals to park alternate spd taps
Flame senser
Neutral terminals (120VAC)
3 AMP, 32 VAC FUSE
BLOWER OFF
DELAY JUMPER

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Lennox G40UH Series Specifications

General IconGeneral
TypeGas Furnace
Efficiency80% AFUE
Heating StagesSingle-stage
Ignition SystemHot Surface Ignition
Vent TypeConventional Venting
Blower MotorPSC
Cabinet Width17.5 inches
Warranty5-Year Parts
Fuel TypeNatural Gas
Heating Capacity44, 000 to 132, 000 BTU/h

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