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Initial start-up
If the heater functions normally the different operating states are passing according to the following functional diagram:
Bar chart
States
Signals
Main switch
Off
Coolant temperature
T > T_min T < T_min
Actuators
Operation indicator
Burner motor
Circulating pump
Electronic ignition unit
Solenoid valve
Time in seconds
Condition
OFF
Standby
Bild 8:
Functional diagram
50
T >= T_max
12
1
0..15
5
...
30
90
Purge
Start
Heating
Cycle
Standby
On
T < T_min
T >= T_max
12
1
0..15
5
...
30
90
Purge
Start
Heating
cycle
Standby
Thermo E 200/320
Off
T < T_min
12
1
0..15
5
...
30
90
Purge
Start
Heating
Cycle
Off
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