4
The display will be as shown in the
figure . Change the values with
the key ( and ) .
Standard visualisation will
return to the display by pres-
sing the key () again, or after 10 seconds if
no key is pressed .
Regulation of the external
sensor (fig . 26/a)
If an external sensor is installed, the value
of the output temperature is automatically
chosen by the system, which quickly adjusts
the of flow temperature on the basis of the
1
external temperature .
If you wish to change the value of the tem-
perature, increasing or decreasing that
calculated automatically by the electronic
card, proceed as indicated in the preceding
paragraph . The level of various correction
of a value of temperature proportional cal-
culated . The display will be as shown in fig .
26/a .
REGULATION OF THE D .H .W .
TEMPERATURE (fig . 27)
To set the desired tempe-
rature D .H .W ., press the key () of
the controls .
The display will be as shown in
the figure .
Change the values with the key (and) .
The display will return to the standard vi-
sualisation by pressing the key () again, or
after 10 seconds if no key is pressed .
TO SWITCH OFF THE BOI-
LER (fig . 28)
In the case of a short absence, press more
than two second the key () of the controls .
The display will be as shown in figure (boiler
in stand-by) . In this way, leaving the electri-
city and the fuel supply connected, the
boiler is protected from frost and from the
pump becoming blocked .
If the boiler is not used for a prolonged pe-
riod, it is advisable to disconnect the electri-
city supply, by switching off the main switch
of the system, and to close the gas tap and,
92
4
4
2
3
2
2
1
3
1
3
1
3
4
4
4
4
1
3
4
2
1
3
2
4
1
3
4
Fig . 26
2
Fig . 26/a
Fig . 27
2
Fig . 28