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Purge
Delay time of safety interlock circuit before fan start
Combustion air pressure: Relief
Purge: Start: Release
Purge: End: Release
Check air pressure monitor
Purge suppression
Purge time
Post-purging
Post-purge time
Switch-off delay of fan motor
Burner motor operation while post purging
Delay time purge position
Status signals
Digital channel
Description
If the fan cannot be switched off and the air pressure monitor must be tested despite this, you can use this output to actuate a relief valve.
The maximum relief time is adjusted using the "Impulse Time" field of the channel. The adjusted value is calculated x0.1, thereby producing the relief time in seconds. For example, the value 50 results in a relief time of 5 seconds.
Output
505
Relieve
Do not relieve
Reference
DOC-729078021