Check The Pressure Of The Heating Expansion; Vessel - Biasi M300V.2025 SM User Manual And Installation Instructions

Fig. 10.14
• The detection electrode "P" in Fig. 10.14
also functions as a sensor for the correct
drainage of the condensate.
Should the mentioned electrode come
into contact with the condensate water
present within the combustion chamber
it sends the boiler into safety lockout.
Therefore, should the insulation be wet or
deteriorated, provide for the substitution
of the same.
Remove any limescale from the
ignition/detection electrode and
replace it if worn.
Caution: After any periodical servicing or
disturbance the combustion chamber sili-
con seal Fig. 10.14 must be fully inspected
and replaced at the discretion of the service
engineer.
After any disturbance to the chamber door
seal the appliance must undergo a full ana-
lytical combustion performance check.
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MAINTENANCE
P
Fig. 10.15
If the condensate primary exchanger ele-
ments are dirty (notable only after removing
the burner body), brush them using a bristle
brush and remove the dirt using a suction
device.
The burner does not require any particular
maintenance, just remove dust using a bris-
tle brush.
More specific maintenance will be valuated
and carried out by a competent Gas Safe
Registered Engineer.
10.8 Check the pressure of the
Drain the heating circuit as described in
section "Emptying the C.H. system" on
Attention, to reassemble repeat
the operations carried out in re-
verse order. Be careful not to
damage the OR gasket of the
gas pipe when inserting the pipe
in Air box.
After any service operation on
the components of the gas cir-
cuit check all the connections
for gas leaks.
heating expansion vessel