Note | t
| For a description of the relevant components, refer to → Chapter. |
| t
| For a description of items “A” to ”f2” , refer to → Chapter (control sequence on start-up of auxiliary heater). |
| G = Switchover from full load operation to control mode (part load operation) |
| g = Control mode (duration temperature-dependent) |
| H = OFF signal for auxiliary heater (supplementary heater), start of optical run-on (burn-off) |
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| The auxiliary heater control unit -J364- receives the request for deactivation as auxiliary heater (or supplementary heater) via the convenience data bus; h = optical run-on (max. 20 seconds) |
| I = The flame monitor signals “not bright”, switchover from optical to electrical run-on (to blow out the remaining combustion gases) |
| i = Run-on for cleaning combustion chamber (approx. 50 seconds) |
| K = Switchover from electrical run-on to run-on for cooling |
| k = Run-on to prevent an increase in coolant temperature in auxiliary heater (approx. 50 seconds) |
| L = End of run-on, auxiliary heater off |
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