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All installations and services must be performed by qualified service personnel.
30
AFTER IGNITOR WARM-UP,
THE 36E54 GAS VALVE IS
ENERGIZED TO OPEN ON
LOW FIRE SETTING
FLAME MUST BE DETECTED
WITHIN 4 SECONDS IF
FLAME IS DETECTED, THE
DELAY-TO-FAN-ON TIME
BEGINS (45 SECONDS)
IF FLAME IS NOT DETECTED, THE
GAS VALVE IS DE-ENERGIZED,
THE IGNITOR IS TURNED OFF AND
THE 50V61-143 CONTROL GOES
INTO "RETRY" SEQUENCE
THE RETRY SEQUENCE
PROVIDES A 60 SECOND
WAIT BEFORE IGNITION
RETRY. RETRY IS
ATTEMPTED WITH A
DIFFERENT VOLTAGE
SETTING.
IF IGNITION ATTEMPT IS
UNSUCCESSFUL, ONE MORE
RETRY WILL BE MADE
BEFORE THE 50V61-143
GOES INTO SYSTEM LOCKOUT
IF FLAME IS DETECTED, THEN LOST,
THE 50V61-143 WILL REPEAT THE
INITIAL IGNITION SEQUENCE FOR A
TOTAL OF TEN RECYCLES. AFTER
TEN UNSUCCESSFUL RECYCLE
ATTEMPTS, THE CONTROL WILL
GO INTO SYSTEM LOCKOUT.
IF NOT
IF SO