Operating the system
Heating up the boiler
3.3.7 Switching off the power supply
Operating Instructions SP Dual compact | B1500016_en
Boiler in combi mode:
WARNING
When inspecting and cleaning the boiler with the main switch on:
Serious injuries possible due to automatic boiler startup!
Before inspection and cleaning work in/on the boiler:
❒ Press the standby key / Switch the boiler off by tapping "Boiler off"
➥ The boiler follows the shutdown procedure and switches to "Off" status
❒ Allow boiler to cool for at least 1 hour
❒ Switch off the main switch and take precautions to prevent accidental
switching on.
Boiler in firewood mode:
WARNING
When the main switch is switched off in heating mode:
The boiler is not controlled. Any resulting boiler malfunctions can cause serious
injury and damage.
Take the following precautions:
❒ Allow the fire to burn out completely and let the boiler cool
➥ ID fan switches off when "Off" status has been reached
(flue gas temperature < 80°C, boiler temperature < 65°C)
❒ Only then is it safe to switch off the main switch
❒ Turn off the main switch
➥ Boiler controller is switched off
➥ There is no power supply to any of the boiler components
NOTICE! Frost protection function is no longer active!
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