EngA CenCon

CenCon
26
J-XM / CD-XM TIMING
Prepurge
60 seconds
Post purge
5 minutes
Flame
failure
15 seconds lockout on ignition control and 60 seconds on burner
Pilot opening time
8 seconds
Open combustion air
proving
30 seconds
RPM out of range
60 seconds
Improper gas valve wiring
2 seconds
Blocked condensate
5 minutes
Blocked flue
10
seconds trip and 1 minute to alarm
Heat exchanger cool down
90 seconds if the discharge air is above 50° (10°C), else none.
Heat exchanger warm up
fan delay
75 seconds if ambient air is less than 40°F (4°C) and discharge temperature less
than 90°F (32°C), else no warm up.
Burner cool down
90 seconds if the burner has been on for more than 30 seconds, else no burner
cool down