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One can perform the GAC in domestic hot water
mode as well.
Make sure that there are no heating requests pre-
sent and that all the valves of the heating system
are open.
If during this stage one wishes to disperse the heat
on the domestic hot water circuit, open at least 2 hot
water taps (ONLY AFTER HAVING ACTIVATED THE
GAC FUNCTION).
4.3.1 - GAC AUTOMATIC CALIBRATION
1 ACTIVATION
Press and hold the key (D) and press the keys
(B- and B+) at the same time for at least 10 sec-
onds, until service appears.
StArt scrolls on the display , the function is active
when the symbols ash.
Note: After the ignition sequence, which can also
take place after a few attempts, the boiler performs
the calibration which consists of 3 stages:
Stage 1: MAXIMUM OUTPUT CALIBRATION
When the display alternates tr - 100 (about 1 min.)
Stage 2: START-UP OUTPUT CALIBRATION
When the display alternates tr - with value XX.
(1 min)
Stage 3: MINIMUM OUTPUT CALIBRATION
When the display alternates tr - 0
Calibration is complete when the small ame
starts to ash.
DISABLING
See section 1 ACTIVATION
Note: If the display does not show errors it means
that the system has been calibrated properly.
Otherwise refer to chapter 4.6
"Error Codes".
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