Continuous Heat Speed Fan Sequence Of Operation - Lennox G43UF SERIES Unit Information

CONTINUOUS HEAT SPEED FAN SEQUENCE OF OPERATION

Ignition Control 78M47 / 100973−01
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.
HUM TERM. ENERGIZES
THERMOSTAT CALLS FOR HEAT (W).
WITH COMB. AIR INDUCER.
YES
NO
SYSTEM FAN REMAINS ON
THERMOSTAT CALLS FOR COOLING.
NO HEATING SPEED.
YES
SYSTEM FAN SWITCHED TO COOL SPEED.
THERMOSTAT OPENS.
EAC TERM. REMAINS ON.
HUM TERM. DE−ENERGIZES
THERMOSTAT OPENS.
WITH COMB. AIR INDUCER
MANUAL FAN SELECTION MADE AT THERMOSTAT.
CONTROL (G) ENERGIZES SYSTEM FAN AT HEAT
SYSTEM FAN REMAINS ON
SPEED. EAC TERM. ENERGIZED.
HEATING SPEED.
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