Useful Advice; Central Heating; Frost Protection; Condensate Drain - Biasi ADVANCE 25S User Manual

3

USEFUL ADVICE

3.1

Central Heating

For your comfort and added system control,
you can install a room thermostat but you
should not shut off the radiator in that room or
have a TRV fitted on the radiator.
If a radiator (or a convector) does not heat up,
check that no air is present in it and that its
valve is open. If the ambient temperature is
too high, do not alter the radiator valves. Re-
duce the central heating temperature instead
by means of the room thermostat or by press-
ing the 13 and 14 heating adjustment keys
(Fig. 3.1).
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Fig. 3.1
3.2

Frost protection

The built in anti frost system protects the boil-
er from frost damage but does not provide any
protection for the system, an optional external
frost protection thermostat can be added and
a dedicated connection point is available on
the electrical connection block.
The anti-freeze function is also activated with
the boiler in stand-by (Fig. 3.2).
Fig. 3.2
Therefore, when the boiler is not lit and used in
cold weather, with consequent risk of freezing
- 16 -
USEFUL ADVICE
do not switch off the boiler at the fused spur
isolation switch or close the gas inlet cock.
If the boiler is deactivated, have a qualified
technician empty the boiler and the C.H. sys-
tem.
3.3
The condensate drain must not be modified
or blocked. Blockage of the condensate drain,
caused by debris or freezing, can cause au-
tomatic shutdown of the boiler. If freezing is
suspected and the pipe run is accessible an
attempt may be made to free the obstruction
by pouring hot water over the exposed pipe
an cleaning any blockage from the end of the
pipe.
If this fails to remedy the problem the assis-
14
tance of a Gas Safe registered installer or in
IE a competent person should be sought.
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3.4
For efficient and continuous operation of the
boiler, it is advisable to arrange maintenance
and cleaning by an Authorised Service Centre
Engineer, at least once a year.
During the service, the most important com-
ponents of the boiler will be inspected and
cleaned. This service can be part of a mainte-
nance contract. In particular, you are advised
to have the following checks carried out:
• condensing heat exchanger;
• burner;
• exhaust fume duct and flue;
• pressurisation of the expansion tank;
• filling up of the central heating circuit;
• bleeding of air from the central heating sys-
tem;
• general check of the appliance's operation.
Please refer to the servicing information on
section "MAINTENANCE" on page 68.

Condensate drain

Periodic maintenance