Italtherm CITY GLASS 20 FR, Инструкция по эксплуатации

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Green Heating Technology
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Soft ignition
Soft ignition pressure is automatic and it needs no adjustment.
• The ignition is achieved by means of a burst of electrical sparks, while the burner is supplied with
gas, initially to the MIN pressure set on the valve gas, then pressure increases gradually (soft igni-
tion ramp) until the ignition takes place.
• The flame is detected by the flame detection electrode. When the flame is detected, the spark
burst stops, the soft ignition process terminates and the burner will be supplied with the gas
pressure corresponding to the power required by the function in progress (domestic hot water
or heating).
Accessing the main board
The main PCB has no hardware adjustment devic-
es onboard, so no access to it is required, except in
case of cabling check or replacement of the board
itself. Proceed as follows:
Cut off the electrical supply to the boiler.
Restore the supply after having closed the
control panel rear cover�
f
unscrew the screws 1 and release the latches 2 ;
f
remove the back cover of the control panel�
An incorrect or not complete closure of the electronic box voids the IP grade of protection of
the appliance. Ensure that all closing items are correctly used and that all cables pass through
the suitable slots. If one or more latches 2 should break, please use holes 3 with suitable screws
(similar to the standard ones 1 ).