16 SAVIO HEAT ONLY USER MANUAL
6. Useful Advice Cont.
If water comes out of the pressure relief valve pipe 3 in Fig. 6.3:
Check on the temperature and pressure
•
gauge ( gure 5.1 on page 11) that the
pressure in the central heating circuit is
not close to 3 bars (43.5 psi). In this case,
temperature rise in the circuit can cause
the pressure relief valve to open.
So that this does not happen and to de-
•
crease the pressure to a normal value, it
is advisable to vent some of the water in
the appliance through the bleed valves
present in the heating system.
Figure 6.3
If water should occasionally leak from the boiler:
Close the cocks connected to the inlet gas pipe and to the supply cold water inlet pipe under
•
the boiler and call an Authorised Service Person.
In case of problems other than those mentioned here, switch off the boiler, as described
in Section 5.5 on page 13 and call a competent and responsible service person.
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