TECHNICAL ASSISTANCE CENTRE
50
In the case of temporary absences, weekends, short
trips, etc., proceed as follows:
- keep the
Mode
button pressed until the bar (1) moves
under the "stand-by" mode.
With the electrical power supply, indicated by the green
LED, and also the fuel supply remaining on, the boiler is
protected by the
anti-freeze
function:
Boiler anti-freeze: if the boiler temperature is less than
5°C the burner switches on at maximum output until the
boiler temperature reaches 10°C;
CH frost protection: this function is only active if an
outdoor temperature sensor is connected. If outside
temperature drops below -5°C the pumps are switched
on. If outside temperature is between -4° and 1.5°C, the
pumps are switched on for 10 minutes at intervals of 6
hours. If outside temperature is above 1.5°C the pumps
are switched off.
If the heating unit is not going to be used for an extended
period of time, proceed as follows to prepare it for shut-
down
- Set the main switch of the control panel to "off" and
check that the display switches off
- Set the system's main switch to "off"
- Close the fuel and water taps of the heating and domes-
tic hot water system
b
Under these conditions the system is not pro-
tected against frost. Drain the heating and
domestic hot water systems to prevent freezing.
TEMPORARY SHUT-DOWN
PREPARING FOR EXTENDED PERIODS OF DISUSE
1
Summary of Contents for 20020843
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