Lennox G32V Series Service Literature page 61

SURELIGHT CONTROL
CONTINUOUS LOW 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 ACB
LOW SPEED. ACC. TERMINAL IS ENERGIZED.
HTG ACC. TERM. ENERGIZES
THERMOSTAT CALLS FOR HEAT (W).
WITH COMB. AIR BLOWER.
NO YES
BOARD NO. 63K8901
SYSTEM FAN DE−ENERGIZED. SYSTEM FAN
ENERGIZES ON ACB HEAT SPEED AFTER
NORMAL DELAY.
THERMOSTAT CALLS FOR COOLING.
BOARD NO. 24L85, 56L83, 97L48
NO
SYSTEM FAN SWITCHES TO ACB HEAT SPEED
YES
AFTER NORMAL DELAY (fan remains energized)
SYSTEM FAN SWITCHED TO ACB COOL
SPEED. ACC. TERM. REMAINS ON.
THERMOSTAT OPENS. COMBUSTION AIR
AND HTG ACC TERMINAL DE−ENERGIZE.
THERMOSTAT OPENS.
BOARD 63K89: SYSTEM FAN OFF. ACC. TERM.
OFF. (AFTER OFF DELAY COMPLETED).
BOARDS 24L85, 56L83 AND 97L48:
SYSTEM FAN SWITCHES TO
LOW SPEED AFTER NORMAL DELAY.
(fan remains energized)
MANUAL FAN SELECTION MADE AT THERMOSTAT.
CONTROL (G) ENERGIZES SYSTEM FAN AT ACB
LOW SPEED. ACC. TERM. ENERGIZED.
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