Rheem 511161 Owner's Manual And Installation Instructions page 19

TEMPERATURE PRESSURE RELIEF VALVE RUNNING
 Normal Operation
It is normal and desirable this valve allows a small quantity of water to escape
during the heating cycle. However, if it discharges more than a bucket full of water
in 24 hours, there may be another problem.
 Continuous dribble
Try gently raising the easing lever on the relief valve for a few seconds (refer to
"Temperature Pressure Relief Valve"
particle of foreign matter and clear the fault. Release the lever gently.
 Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes rises above the designed
pressure of the water heater. Ask your installing plumber to fit a pressure limiting
valve.
Warning: Never replace the relief valve with one of a higher pressure rating.
 Heavy flows of hot water until the water heater is cold - then stops until
water reheats
The water heater must be switched off at the isolating switch or switchboard.
Phone Rheem Service or their nearest Accredited Service Agent to arrange for
an inspection.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater (refer
to the cold water connection diagram
water instead of the temperature pressure relief valve on the water heater. The benefit
is that energy is conserved as the discharged water is cooler.
IN-SERIES WATER HEATER OPERATING TOO FREQUENTLY
You may find that the in-series water heater operates more frequently than expected. This will occur when the
solar heated water temperature is lower than the temperature setting of the in-series water heater. This may
be experienced during periods of low solar energy gain or if there has been heavy hot water usage. A Rheem
continuous flow solar gas booster will operate if the solar heated water temperature is lower than 58°C.
Fan Continues To Run After Water Heater Operation Stops
It is the normal operation of the Rheem solar gas booster for the fan to continue running after heating of the
water is finished. The fan may run for up to two minutes after the burners extinguish, to prepare for the next
ignition.
COLLECTOR GLASS
The Rheem warranty DOES NOT cover breakage of solar collector glass. Check your household insurance
policy covers collector glass breakage.
Warning: No attempt should be made to remove or replace broken collector glass.
The collector glass is not offered as a replacement part. Should the solar collector require replacement, contact
Rheem Service or their nearest Accredited Service Agent.
NOISE FROM THE SOLAR COLLECTORS
This water heater is installed with higher performing selective surface solar collector(s). During periods of
higher solar radiation or lower hot water usage and the solar storage tank is full of hot water, the water heater
may undergo Over-temperature operation (refer to
operation has occurred and the circulator has deactivated, the water in the solar collector(s) will continue to
gain heat and increase in pressure when solar radiation is still available. This increase in heat and pressure is
greater when higher performing selective surface solar collector(s) are installed compared to non-selective
surface collector(s).
When a hot tap is opened, this pressure is released and the high temperature water may turn to steam creating
a sudden and loud rumbling noise and even a rattling or banging noise of the solar collector(s) against the roof
cladding material. This results from the higher level of solar radiation and the water in the solar storage tank
being at its maximum temperature and is not caused by a fault with the solar water heater.
on page 13). This may dislodge a small
on page 43) it may discharge a small quantity of
"Over-temperature operation"
19
SAVE A SERVICE CALL
on page 5). If this mode of