DE DIETRICH INNOVENS PRO MCA 45 - 65 - 90 - 115 - Manual (Page 30)

4.4 Installation shutdown
CAUTION
Do not switch off the mains supply to the appliance. If the
central heating system is not used for a long period, we
recommend activating the HOLIDAYS mode (to ensure
the anti-grip of the heating pump).
4.5 Frost protection
CAUTION
4
The antifreeze protection does not function if the
appliance is switched off.
4
The integrated protection system only protects the
boiler, not the installation. To protect the installation,
set the appliance to HOLIDAYS mode.
The HOLIDAYS mode protects:
4
The installation if the outside temperature is lower than 3°C
(factory setting).
4
The room temperature if a remote control is connected and the
room temperature is lower than 6 °C (factory setting).
4
The domestic hot water tank if the tank temperature is lower
than 4 °C (the water is reheated to 10 °C).
To configure the holidays mode: ¼ See chapter: "Selecting the
operating mode", page 21.
4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115
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