Camus Hydronics DRH300, Installation, Operation And Service Manual

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Hold 63: LCI OFF (Load Control Input)
Hold 67: ILK OFF (High Limit, Gas Pressure Switch, Air Switch)
Alert 303: Abnormal Recycle: ILK off during drive to Purge
Alert 304: Abnormal Recycle: ILK off during Measured purge time
Alert 305: Abnormal Recycle: ILK off during Drive to Pre-igntion
Alert 306, 307: Abnormal Recycle: ILK off during Pre-ignition
Alert 308: Abnormal Recycle: ILK off during Main Flame
Alert 309: Abnormal Recycle: ILK off during Ignition Period
Alert 310: Run was terminated due to ILK was off
Alert 460: LCI lost in run
This error occurs when one of more of the boiler safety switches are in an open condition when it is to be in a closed condition
before the ignition sequence is allowed to proceed.
Flow Switch
Gray
Check flow switch
Green
Open
Check flow switch paddle
Closed
Check water
pressure switch
Open
Must have minimum 30
PSIG in water system
High Limit
Gray
Check high limit
Open
Reset high limit
Green
Gas Pressure Switch
Gray
Low gas switch
Open
Check inlet gas pressure
> 3” w.c.
Green
Closed
High gas switch
Open
Check inlet gas pressure
< 14” w.c.
Air Switch
Gray
Check blocked
flue switch
Open
Check vent & inlet for
obstruction
Green
Check air proving
switch
Open
Turn set screw CCW 1/2
to 1-1/2 turns
Check J5-2
connector SOLA
for 24Vac signal
Proceed to
ignition sequence
Closed