Lennox G60UHV Series Installation Instructions Manual page 48

COOLING SEQUENCE
O F OPERATION
I
I
I POWER ON I
4,
IS POLARITY REVERSED?
I IS THERE NO
PROPER GROUND? 9
_ YES
THERMOSTAT CALLS FOR FIRST-STAGE COOL. I
4,
COMPRESSOR AND CONDENSER FAN
ENERGIZED.
4,
INDOOR BLOWER ENERGIZED ON FIRST STAGE
COOL SPEED AFTER 2 SECOND DELAY.
SIGNAL POLARITY REVERSED.
CONTROL WILL CONTINUE TO CALL FOR COOLING
IN THIS CONDITION,
STATUS ERROR CODE 5 + 4.
SIGNAL IMPROPER GROUND AT LED.
CONTROL WILL CONTINUE TO CALL FOR COOLING
IN THIS CONDITION,
STATUS ERROR CODE 5 + 3.
4,
_1 FIRST-STAGE DEMAND FOR COOL SATISFIED?
I THERMOSTAT CALLS FOR SECOND-STAGE COOL,
4,
I ,NDOOR BLOWER RAMPS UP TO SECOND-STAGE COOL SPEED I
4,
ISECOND-STAGE DEMAND FOR C OOL SAT'SF'ED? I
YES 4,
I
I_ COMPRESSOR AND CONDENSER FAN DE-ENERGIZED.
NDOOR BLOWER DE-ENEG ZED.
I
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