Description Of The R Control Panel - OERTLI PK 350 User Manual

3. Description

3.4 Description of the R 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 regulation controls, room
thermostat and DHW module.
Position : The boiler no longer takes orders from the
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. Stage 1 boiler thermostat (30 to 85 °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. Location for flue gas thermometer (optional)
11. Stage 2 boiler thermostat (30 to 85 °C)
A factory-set stop limits the maximum temperature to 75 °C. The
stop may be moved if necessary (See "Moving the thermostat
stop").
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PK 350 - PK 450 - PK 550 16/03/2016 - 300019443-02