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SURELIGHT®CONTROL
COOLINGSEQUENCEOF OPERATION
NORMALCOOLING MODE ABNORMALCOOLING MODE
I POWER ON l
I IGNITIONCONTROLMA,NPOWERON I
I CO.T O S O,A .OS ,OO. OKIS CONTROL OPERATING NORMALLY?
GAS VALVE OFF, COMBUSTION AIR INDUCER OFR
INDOOR BLOWER OFF WITH NORMAL DELAY.
SIGNAL CIRCUIT BOARD FAILURE AT LED.
INTERRUPT MAIN POWER TO RESET CONTROL,
Y sJ
I ,sPOLARITYREVERSED?_ LED_IFASTFLASHLED_2SLOWFLASHI
/
LED#1 AND LED#2 NO |
ALTERNATING FAST I NO _ __ _ LED#1 AND LED#2 ALTERNATING FAST
FLASH. SIGNAL _ IS THERE I YESJ Is VOLTAGE FLASH. SIGNAL HOLDS UNTIL VOLTAGE
I HOLDS UNTIL UNIT IS I_1 PROPER GROUND? I_IABOVE 75 VOLTS? I_' RISES ABOVE 75 VOLTS.
[PROPERLY GROUND. I I
• NO I GAS VALVE OFF COMBUSTION AIR INDUCER OFF
I ROLLOUT SWITCH MONITORED CONTINUOUSLY. _ INDOOR BLOWER OFF WITH NORMAL DELAY.
IS ROLLOUT SWITCH CLOSED? I_--I SIGNAL CIRCUIT BOARD FAILURE AT LED,
YESl - ISEQUENCEHOLDS UNTIL ROLLOUT SWITCH CLOSES.
t
I CHECK TO ENSURE GAS VALVE IS DE-ENERGIZED.
S GAS VALVE OFF?
I LED:SLOW FLASHRATEREMAINS UNCHANGED ITHROUGHOUT COOLING CYCLE.
I THERMOSTAT CALLS FOR COOLING. I
COMPRESSOR CONTACTOR IS ENERGIZED,
INDOOR BLOWER ON COOL SPEED AND EAC
TERM NAL S ENERG ZED AFTER 2-SECOND DELAY,
THERMOSTAT OPENS. I
COMPRESSOR OFF. I
SYSTEM FAN AND EAC TERM, OFF I
WITH 2 OR 45-SECOND DELAY,
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