Baxi LUNA HT 1.350, Instructions Manual

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79
instructions pertaining to the user 924.493.3
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5. turning off the boiler
To shut down the boiler switch off the electrical supply to the appliance.
6. prolonged standstill of the system. frost protection
7. servicing instructions and gas change
To maintain efficient and safe operation of your boiler have it checked by a Qualified Service Engineer at the end of every
operating period. Careful servicing will ensure economical operation of the system.
Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily flammable cleaners (i.e.: gasoline,
alcohol, and so on). Always isolate the electrical supply to the appliance before cleaning it (see section 5 Turning off the
boiler).
These boilers produced for natural gas can be converted to work with LPG.
Any gas change be effected by a Qualified Service Engineer.
We recommend you avoid draining the whole system as water replacements engender purposeless and harmful limestone
deposits inside the boiler and on the heating elements.
In case the boiler is not operated during wintertime and is therefore ex­posed to danger of frost we suggest you add some
specific-purpose anti-freeze to the water contained in the system (e.g.: propylene glycole coupled with corrosion and
scaling inhibitors).
The electronic management of boilers includes a ‘frost protection’ function which operates the burner to reach a heating
flow temperature of 30° C when the system heating flow temperature drops below 5°C.
The frost protection function is enabled if:
* electrical supply to the boiler is on;
*
the gas service cock is open;
* the system pressure is as required;
* the boiler is not blocked.