32
for the technician
First firing, regulation and servicing instructions
9
Re-calibration of motorised mixing valve: (default setting = 0)
When boiler is switched on (or after a reset), boiler execute a calibrating cycle of the mixing
valve for about 90 seconds which is necessary for the correct sanitary system functioning.
During this period any other functions of the boiler are off. To help maintenance and servicing,
since during this operation many switching on and off are very common, it is possible to disconnect
re-calibration.
0 Calibration cycle ENABLED, for normal boiler operation
1 Calibration cycle DISABLED, to be utilised during maintenance ONLY: ORANGE light
FLASHES until value is reset at 0. Pushing ‘Reset’ or switching boiler off and on it is then
possible to ignite burner immediately.
When all regulations are over, IT IS MANDATORY to set this parameter value at 0
again.
For this reason after 20 minutes (with boiler electrically supplied) said parameter is
automatically set at 0 (and orange light stops flashing).
10 External probe indicator (not modifiable)
This parameter indicates the presence of an external probe, if any. Said probe should be
connected to dedicated connections (optional kit). Please note that, if an external probe is
inserted, heating system control is led by probe itself (see instruction manuals attached to
optional kit)
0 no external probe (or cut connection);
1 External probe detected.
If an external probe is installed and this parameter is 0 it is likely that probe is defective.
