Lennox G40UH(X) User Manual

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CONTINUOUS HEAT SPEED FAN SEQUENCE OF OPERATION
LED: SLOW FLASH RATE REMAINS
UNCHANGED THROUGHOUT SEQUENCE.
MANUAL FAN SELECTION MADE AT THERMOSTAT.
CONTROL (G) ENERGIZES SYSTEM FAN AT HEAT−H
HEAT SPEED. EAC−H TERMINAL IS ENERGIZED.
THERMOSTAT CALLS FOR HEAT (W).
THERMOSTAT CALLS FOR COOLING.
THERMOSTAT OPENS.
SYSTEM FAN SWITCHED TO COOL−H SPEED.
EAC−H TERM. REMAINS ON.
THERMOSTAT OPENS.
CONTROL (G) ENERGIZES SYSTEM FAN AT HEAT−H
HEAT SPEED. EAC−H TERM. ENERGIZED.
NO
YES
YES
NO
HUM−H TERM. ENERGIZES
WITH COMB. AIR BLOWER.
SYSTEM FAN REMAINS ON HEAT−H
HEATING SPEED.
SYSTEM FAN REMAINS ON HEAT−H
HEATING SPEED.
HUM−H TERM. DE−ENERGIZES
WITH COMB. AIR INDUCER

Lennox G40UH(X) Specifications

General

Brand	Lennox
Model	G40UH(X)
Category	Furnace
Language	English