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Eclipse Bi-Flame v1.8, Instruction Manual 826, 05/03
39
Table 10.1
Bi-Flame Operating Sequence (continued)
BURNER SHUTDOWN
Shutdown is started by opening
the operating interlock circuit.
Is voltage present at interlocks?
YES NO
Fuel valves de-energized; fan
energized for 15 seconds.
Is proof of closure circuit closed?
YES NO
Is voltage present at air flow switch?
YES NO
Fan and alarm energized.
Fan and Alarm energized.
ERROR MESSAGE
MAIN VALVE FAIL
LKOUT XXXX:XX:XX
NORMAL MESSAGE
LIMITS OPEN
TIME = XXXX:XX:XX
Fan is energized. If signal is elimi-
nated within 30 seconds, se-
quence continues. If not, then . .
ERROR MESSAGE #1
UNSAFE FLAME ON
ERROR MESSAGE #2 – 30 SECONDS AFTER #1
UNSAFE FLAME ON
LKOUT XXXX:XX:XX
NORMAL MESSAGE
POST PURGE
XX
ERROR MESSAGE #1
UNSAFE AIR SHORT
YES NO
Is flame signal present?
Alarm energized.
If switch is opened within 30
seconds, sequence continues. If
not, then . . .
ERROR MESSAGE #2 – 30 SECONDS AFTER #1
UNSAFE AIR SHORT
LKOUT XXXX:XX:XX
Continued operation.
Countdown of XX based on DIP
switch
NORMAL MESSAGE
VALVE LEAKAGE
UNDER TEST XX
Is voltage present at VDK input
before time out?
YES
NO
Fan and alarm energized.
ERROR MESSAGE
VALVE LEAK FAIL
LKOUT XXXX:XX:XX