TECHNICAL ASSISTANCE SERVICE
39
SHUTDOWN
RESET FUNCTION
To reset the boiler, turn the function selector to “
0
”, then
return it to its previous position and check that the red LED
goes out. Provided correct functioning conditions have
been restored, the boiler restarts automatically. As soon
as the burner ignites the green LED lights and the digital
display will read out current operating temperature.
b
Turning the function selector to “
0
” without return-
ing it to “
{
” or “
}
” will not reset the boiler.
If the boiler does not restart after a number of resets, call
your local Technical Assistance Centre. Under normal
conditions, when the function selector is turned to “
0
”,
the digital display reads out “
- -
” unless the frost protec-
tion function (AF) is active, or combustion analysis (CO)
in being performed.
If you are going away for a short period of time like a
weekend or a short holiday, etc., turn the function selector
to “
0
” OFF/RESET.
The digital display reads out the message shown along-
side.
Because electrical power and the gas supply to the boiler
both remain on, the boiler is protected by the following
systems:
-
Frost protection:
Central heating
This function is activated if the temperature read by the
central heating flow temperature sensor falls below 6°C.
Under these conditions a heat request is generated,
igniting the burner at minimum power and keeping it on
until the temperature of the central heating flow water
reaches 35°C.
b
The message AF flashes on the display for as long
as the frost protection function remains active.
-
Pump anti-block function:
The pump is switched on
for 30 seconds every 24 hours.
0
bar
4
1
3
2
°C
0
120
20
100
40
80
60
0
bar
4
1
3
2
°C
0
120
20
100
40
80
60
Summary of Contents for 20044966
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