Control system sequence
Status Sub-status Operation
3 Boiler on heating service 30 Nominal internal set point
31 Limited internal set point
32 Output control
33 Temperature protection gradient level 1 (Modulate down)
34 Temperature protection gradient level 2 (Part load)
35 Temperature protection gradient level 3 (Blockage)
36 Modulate up for flame control
37 Temperature stabilisation time
38 Cold start
5 Burner stop 40 Burner shutdown request
41 Post-ventilation
42 Fan speed reduction
43 Closure of the flue gas flue damper
44 Stop fan
6 Switching off the boiler 60 Post-operation time delay on the boiler pump
61 Stop boiler pump
62 Close isolating valve
63 Start anti short cycle
8 Stop 0 Awaiting burner start-up
1 Anti-short cycle activated
9 Blockage XX Shutdown code XX
10 Blocking 0 Rest
16 Burner running to guarantee AF 30 Antifreeze protection
31 Nominal internal set point
32 Limited internal set point
33 Temperature protection gradient level 1 (Modulate down)
34 Temperature protection gradient level 2 (Part load)
35 Temperature protection gradient level 3 (Blockage)
36 Modulate up for flame control
37 Temperature stabilisation time
38 Cold start
Diematic iSystem For C 330 / C 630 ECO 7. Troubleshooting
31082018 - 7600691-001-06
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