7
1.3.2 Regulation
C.H. temperature (fig. 25)
To set the temperature of the water for
heating, press the key of the controls
(2). The first time the key is pressed, the
SET of heating circuit 1 is selected. The
second time it is pressed, the SET if second
zone fitted is selected. The display will be as
shown in the figure. Change the values with
the key and
.
Standard visualisation will return to the
display by pressing the key
again, or
after 10 seconds if no key is pressed.
Regulation of the external sensor
If an external sensor is installed, the value
of the output temperature is automatically
chosen by the system, which quickly adjusts
the environmental temperature on the
basis of the external temperature.
If you wish to change the value of the tem-
perature, increasing or decreasing that cal-
culated automatically by the electronic
card, proceed as indicated in the preceding
paragraph.
The level of various correction of a value of
temperature proportional calculated.
The display will be as shown in fig. 25/a.
1.3.3 Regulation D.H.W.
temperature (fig. 26)
To set the desired temperature of the
D.H.W., press the key of the controls
(pos. 2). The display will be as shown in the
figure.
Change the values with the key and
.
The display will return to the standard
visualisation by pressing the key again,
or after 10 seconds if no key is pressed.
1.3.4 To switch off the boiler (fig. 24)
In the case of a short absence, press the
key of the controls (pos. 2).
The display will be as shown in the fig. 24.
In this way, leaving the electricity and the
fuel supply connected, the boiler is protec-
ted from frost and from the pump beco-
ming jammed.
If the boiler is not used for a prolonged
period, it is advisable to disconnect the
electricity supply, by switching off the main
switch of the system, and to close the gas
tap and, if low temperatures are expected,
to completely empty the hydraulic circuits
to avoid pipes being broken by the forma-
tion of ice in the pipes.
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