pressure must be reduced. The Boiler and storage tank each have a drain to facilitate this.
After replacing the relevant parts, refill the system as described in Section 7:5.
3) Pressure Relief Valve
This should be checked for operation during annual servicing by increasing the system pressure outlined in
Section 7:6.
4) Expansion Vessel Pressure
Should be checked to be in accordance with the cold design pressure of the system.
The design of the Camray 5 Combi enables the Pressure Vessel to be lifted and laid on to the floor
whilst still connected to the Boiler, enabling full access to the Burner and Heat Exchanger.
Fig 9.1 b
Page 36
Section 10 - Fault finding
10:1 FAULT FINDING
If the Boiler fails to start, make the following checks before calling a service engineer: -
Is there sufficient fuel in the storage tank?
Are all fuel supply valves open (turned fully anti-clockwise) and ball valves open? Is the mains electricity
Page 48 of 57
Installation & maintenance manual for Camray 5 Combi External Boilers
14/04/2005
file://D:\PL61500\PL61500.htm
