REGULAR CARE
14
TEMPERATURE PRESSURE RELIEF VALVE
This valve is near the top of the water heater and is essential for
its safe operation. It is possible for the 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 valve and its drain line may
indicate a problem with the water heater (refer to
Pressure Relief Valve Running”
on page 20).
Warning:
Never block the outlet of this valve or its drain line
for any reason.
Operate the easing lever on the temperature pressure relief valve
once every six months. Refer to
on page 13.
It is very important the lever is raised and lowered
gently.
DANGER:
Failure to do this may result in the water heater
cylinder failing, or under certain circumstances, exploding.
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 temperature pressure relief valve should be replaced at
intervals not exceeding 5 years, or more frequently in areas where
there is a high incidence of water deposits (refer to
on page 16).
EXPANSION CONTROL VALVE
In many areas, including South Australia, Western Australia and scaling water areas, it is mandatory an
expansion control valve is fitted to the cold water line to the water heater. The expansion control valve may
discharge a small quantity of water from its drain line during the heating period instead of the temperature
pressure relief valve on the water heater.
The easing lever on the expansion control valve should be operated once every six months. Refer to
on page 13.
It is very important the lever is raised and lowered gently.
If water
does not flow freely from the drain line when the lever is lifted, then the water heater should be checked by
Rheem Service or their nearest Accredited Service Agent. The expansion control 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.
COLLECTOR GLASS
Ensure the glass on your solar collectors is free of dust, salt spray or any other matter, which may reduce the
effectiveness of the solar collectors. If the collector glass becomes dirty, hose down or if the solar collectors
are accessible, wash the collector glass with water and a soft brush when the solar collectors are cool.
Have any trees trimmed which may shade the solar collectors.
Rheem solar collectors have passed the AS/NZS 2712 requirements for resistance to hailstone damage, so it
is not normally necessary to fit a guard to a collector. Stone Guards are available to provide a level of protection
to the collectors against vandalism or accidental damage. Refer to your local Solar Distributor for details.
water
heater
drain
line
lift until water
flows from the
drain line
–
lower gently