Raypak B0507 - Regular Care

10
REGULAR CARE
PRESSURE RELIEF VALVE
The pressure relief valve is located in the in/out header of the water heater and is essential for its safe operation. It
is possible for the pressure relief valve to release a little water through the drain line during each heating period.
This occurs as the water is heated and expands by approximately 1/50 of its volume.
Continuous leakage of water from the pressure relief valve and its drain line may indicate a problem with the water
heater (refer to “Pressure Relief Valve Running” on page 9).
Warning: Never block the outlet of the pressure relief valve or its drain line for any reason.
Operate the easing lever on the pressure relief valve once every six months. It is very important you raise and
lower the lever gently.
Warning: Failure to do this may result in the water heater cylinder failing.
Warning: Exercise care to avoid any splashing of water, as water discharged from the drain line will be hot.
Stand clear of the drain line‟s point of discharge when operating the valve‟s lever.
If water does not flow freely from the drain line when the lever is lifted, then the water heater must be checked;
phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.
The pressure relief valve should be checked for performance or replaced at intervals not exceeding 5 years, or
more frequently in areas where there is a high incidence of water deposits (refer to “Water Supplies” on page 51).
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and scaling water areas, an expansion control valve is
fitted to the cold water line to the water heating system. The expansion control valve may discharge a small
quantity of water from its drain line during the heating period instead of the pressure relief valve on the water
heater.
Operate the easing lever on the expansion control valve once every six months. It is very important you raise
and lower the lever gently. The expansion control valve should be replaced for performance or replaced at
intervals not exceeding 5 years, or more frequently in areas where there is a high incidence of water deposits.
STORAGE TANKS (IF FITTED)
Refer to the owners guide and installation instructions supplied with the storage tank for details on regular care
required.
SERVICING
Warning: Servicing of a gas water heater must only be carried out by authorised personnel.
For peak performance it is suggested that the water heater be serviced by your nearest Rheem Service
Department or Accredited Service Agent prior to the winter period where light to medium hot water usage occurs,
and six monthly where medium to heavy usage occurs.
If Servicing is performed once a year, conduct the “Annual Service Procedure”. If servicing is performed at six
monthly intervals, rotate between the “Annual Service Procedure” and “Six Monthly Service Procedure”
Only genuine replacement parts should be used on this water heater.
Six Monthly Service
Refer to “Service Procedures” on page 50.
Annual Service
Refer to “Service Procedures” on page 50.
Five Year Service
Refer to “Service Procedures” on page 50.