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Ignition
Ensure the power is on to the appliance.
fig. 5 - Ignition
•
For the firsts 300 seconds, the display shows FH that identifies the Air purge function.
•
During the first 5 seconds, the display shows the software version of the pcb.
•
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.
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 ahead of the boiler and disconnect electrical power.
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
The boiler is ready to function automatically whenever the external controls are calling for heat.
6
fig. 7 - Turning off
fig. 8
cod. 3541D730 - Rev. 00 - 05/2013
T-ONE C HE
fig. 6 - Air purge
EN
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