20 RIVA ADVANCE COMBI USER MANUAL
6. Useful Advice Cont.
If water comes out of the pressure relief valve pipe H in Fig. 6.4:
• Check on the pressure gauge (figure 5.1 on page 12) that the pressure in the central heating
circuit is not close to 2 bars (30 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 decrease the pressure to a normal value (14,5 psi), it
is advisable to vent some of the water in the appliance through the bleed valves present in
the heating system.
Figure 6.4
If water should occasionally leak from the boiler:
• Close the cocks connected to the inlet gas pipe and to the domestic cold water inlet pipe
under the boiler and call an Authorized Service Person.
In case of problems other than those mentioned here, switch off the boiler, as described
in Section 5.6 on page 16 and call a competent and responsible service person.
3 1 2
H
Summary of Contents for Riva ADVANCE COMBI
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