6 EN
cod. 3541D054 - Rev. 00 - 11/2013
Ignition
Ensure the power is on to the appliance.
fig. 5 - Ignition
fig. 6 - Air purge
• During the first 5 seconds, the display shows the software version of the pcb.
• For the first 300 seconds, the display shows FH that identifies the Air purge function.
• Open the gas cock on the boiler and purge the air from the pipework upstream of the gas valve.
• When the FH disappears, the boiler is ready to function automatically whenever the external controls are calling for heat.
Turning off
Press the on/off button (part. 7 - fig. 1) for 5 seconds.
fig. 7 - Turning off
When the boiler is turned off with this key, the p.c.b is still powered, heating operation is disabled and the display is off
however the frost protection will still be active.
To totally isolate close the gas cock before the boiler and disconnect electricity supply.
B
To avoid damage caused by freezing during long shutdowns in winter, it is advisable to drain all water from
the system.
To turn boiler on again, press the on/off button (part. 7 - fig. 1) for 5 seconds
fig. 8
The boiler is ready to function automatically whenever the external controls are calling for heat.
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