Dvc-35Ip Intermittent Pilot Sequence Of Operation - Empire Heating Systems DVC35IPXLP-1 Instructions Pour L'installation Et Manuel Du Propriétaire

DVC-35IP INTERMITTENT PILOT SEQUENCE OF OPERATION

START
System Check
Trial for
Ignition
Main Burner
Operation
END
(1) Ignitor will turn OFF about 30 seconds into the trial for ignition if the pilot flame has not lit. It will turn back ON for the final 30
(1) Ignitor will turn OFF about 30 seconds into the trial for ignition if the pilot flame has not lit. It will turn back ON for the final 30 seconds
seconds of the 90 second trial for ignition. The pilot will be energized during the entire trial for ignition. This is normal operation
of the 90 second trial for ignition. The pilot valve will be energized during the entire trial for ignition. This is normal operation for this gas
for this gas ignition system.
ignition system.
Page 18
Apply 24 VAC
To Appliance
Call for Heat
Flame Signal YES
Detected
NO
NO
Internal Check
OK
YES
l
Pilot Valve Opens
l
Ignitor Powered
Pilot Light and Flame is
NO
Sensed During Trial For
Ignition (1)
YES
l
Ignitor OFF
l
Main Valve Opens
YES
Flame Signal
Lost?
NO
Call for Heat Ends
Main Pilot Valves
Close
l
Pilot Valve Ignition OFF
l
Wait for Flame Signal to
Disappear
l
Pilot Valve Closes
l
Ignition OFF
3 Second Flame Recycle
Delay
Main Pilot
Valves Close
Flame Lost More NO
Than 5 Times in
One Call for Heat
YES
5 Minute Retry Delay
37402-5-0620