Camus Hydronics DynaMax DMH081 - PART 13 PIPING DIAGRAMS (Continued); Multiple Boiler Hydronic Heating Piping Arrangement

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12.19 IGNITION CYCLE
The ignition cycle is shown in the table below. The values are the default factory settings.
Table 44: DynaMax Ignition Cycle
State 

 Standby Pre Purge Safety ON Safety OFF
6
Ignit_0 Ignit_1 Burn
Post
Purge_0
Time 0s
5s after fan
speed is
within 600
rpm
2 sec 6 sec
Limited to 24
hours
continuously
3
Min. 30 sec
Demand 0
No
influence
No
influence
No
influence
No
influence
No
influence
> 0
No
influence
Fan Off
Ignition
speed
Ignition
speed
Ignition
speed
Ignition
speed
Ignition
speed
Requested
power
Ignition
speed
Gasvalve
Closed
Closed
Closed
Closed
Closed
Open
Open
Closed
Spark Off Off Off Off On On
4
Off Off
Ionisation 0 0 0 0 0
1
Flame must
be
detected
2
Flame must
be detected
No flame
must be
detected
5
Note:
1. If a flame signal is detected at the end of the pre-spark period (Ignit_0) then a lockout will occur.
2. If at the end of the safety period (6 sec) no flame is detected the control will go to post-purge to remove the unburned gas.
After this a re-ignition attempt is started following the same cycle. The number of re-ignition attempts is limited to 2 after
which a lockout occurs.
3. The burner can only be on continuously for a period of 24 hours. After this the burner is switched off and a restart
sequence follows.
4. Sparking stops 2 seconds before the end of the Ignit_1 period to allow for ionisation detection when measuring ionisation
through the spark plug.
5. If after post_purge_0 time (max. 10 sec.) still flame is detected lockout follows
6. Safety ON/OFF in this state the correct working of the safety relay is proved.
If the ignition cycle is started it will continue until completion, even if the demand is removed.