Sequence Of Operations - Slant/Fin victory II VH series Installation And Operating Instructions Manual

V
ICTORY
"Victory II Boiler Sequence of Operations
THERMOSTAT CALLS FOR HEAT
CIRCULATOR ON
BOILER WATER TEMPERATURE
NO
IS BELOW HIGH LIMIT SETTING?
AIR PROVING SWITCH
PROVED OPEN?
INDUCER (AIR BLOWER) ON
AIR PROVING SWITCH PROVED
CLOSED WITHIN 30 SECONDS?
PILOT VALVE OPENS.
IGNITOR POWERED.
PILOT LIGHTS AND FLAME
ARE SENSED DURING TRIAL
FOR IGNITION?*
MAIN VALVE OPENS.
IGNITOR OFF.
(BOILER HEATING PERIOD)
FLAME SENSE LOST?
THERMOSTAT CALLS FOR
HEAT ENDS.
CIRCULATOR OFF.
PILOT AND MAIN VALVE CLOSE.
INDUCER OFF.
WAIT FOR NEXT CALL FOR HEAT
* Ignitor turns off about 30 seconds into the tr ial for ignition
if the pilot flame has not lit. It turns back on for the final
30 seconds of the 90 second tr ial for ignition. The pilot valve
is energized during the entire trial for ignition.
YES
NO
YES
YES
NO
YES
YES
NO
WAIT FOR AIR PROVING
SWITCH TO OPEN
NO
INDUCER OFF
PILOT VALVE CLOSE.
IGNITOR OFF.
INDUCER OFF.
PILOT AND MAIN
VALVE CLOSE
FLAME SENSE
LOST MORE
THAN FIVE TIMES IN
THIS CALL
FOR HEAT?
NO
3 SECONDS FLAME
FAILURE RECYCLE DELAY
5 MINUTES
WAIT PERIOD
YES
INDUCER OFF
23