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MCA 15 - MCA 25 MCA 25/28 MI
User level - Menu #TIME PROGRAM
Day
Monday
TIME PROG.AUX
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
4.4
Installation shutdown
4.5
Frost protection
23/08/2011 - 300024159-001-B
Comfort periods / Filling enabled:
P1
P2 _______________ P3 _______________ P4 _______________
_______________
When the heating water temperature in the boiler falls by too much,
the integrated protection system in the boiler starts up. This protection
functions as follows:
4 If the water temperature is lower than 7°C, the heating pump starts
up.
4 If the water temperature is lower than 4°C, the boiler starts up.
4 If the water temperature is higher than 10°C, the boiler shuts down
and the heating pump continues to run for a short time.
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 19.
CAUTION
Do not switch off the boiler. If the central heating system
is not used for a long period, we recommend activating the
HOLIDAYS mode.
CAUTION
The anitfreeze protection does not function if the
4
boiler is switched off.
The integrated protection system only protects the
4
boiler, not the installation. To protect the installation,
set the appliance to HOLIDAYS mode.
4. Operating the boiler
24
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