Description Of The K3 Control Panel - DeDietrich GTU C 330 User Manual

3. Technical description

3.5 Description of the K3 control panel

1. General ON (1) / OFF (0) switch
2. Burner alarm indicator
This indicator lights up when the burner is on safety (failure).
3. Switch AUTO/ /TEST-STB
Position AUTO: This position enables automatic operation of the
installation in accordance with DIEMATIC-m 3 regulation
controls.
Position : The boiler no longer takes orders from the
DIEMATIC-m 3 regulation into account. The boiler is regulated
by the boiler thermostat(s).
Position TEST-STB: Temporary action to test the safety
thermostat
4. Safety thermostat with manual reset
Set to 110° C
5. Timed circuit breaker (10 A) with delayed action and manual
reset
6. Pump shutdown switch
7. Boiler thermostat (30 to 90 °C)
A factory-set stop limits the maximum temperature to 75 °C. The
stop may be moved if necessary.
See "Moving the thermostat stop".
8. Boiler thermometer. Boiler temperature display.
9. Switch for selecting the number of burner stages
10. Connector for the programming tool
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GTU C 330
16/01/2020 - 300017846-03