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Eclipse Veri-Flame Instruction Manual 818-2/02
Table 9.1
Veri-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 main valve closed switch made?*
YES NO
Is voltage present at air flow switch?
YES NO
Fan energized; alarm sounds.
Alarm energized.
ERROR MESSAGE
MAIN VALVE FAIL
XX:XX:XX LOCKOUT
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
XX:XX:XX LOCKOUT
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
XX:XX:XX LOCKOUT
Continued operation.
FOR PURGE & MODULATING
* Applies to purge and no purge models only.
Is post purge selected?
YES NO