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
SPEED. EAC TERMINAL IS ENERGIZED.
THERMOSTAT CALLS FOR HEAT (W).
THERMOSTAT CALLS FOR COOLING.
THERMOSTAT OPENS.
SYSTEM FAN SWITCHED TO COOL SPEED.
EAC TERM. REMAINS ON.
THERMOSTAT OPENS.
MANUAL FAN SELECTION MADE AT THERMOSTAT.
CONTROL (G) ENERGIZES SYSTEM FAN AT HEAT
SPEED. EAC TERM. ENERGIZED.
NO
YES
YES
NO
HUM TERM. ENERGIZES
WITH COMB. AIR INDUCER.
SYSTEM FAN REMAINS ON
HEATING SPEED.
SYSTEM FAN REMAINS ON
HEATING SPEED.
HUM TERM. DE−ENERGIZES
WITH COMB. AIR INDUCER

Lennox G40UH(X) Specifications

General

Brand	Lennox
Model	G40UH(X)
Category	Furnace
Language	English