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SAVE A SERVICE CALL
18
Water heater size
Do you have the correct size water heater for your requirements? The sizing
guide in the Aquamax sales literature suggests average sizes that may be
needed.
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
It is normal and desirable that 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”
on page 12). This may dislodge a small
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 water heater is cold - then stops until
water reheats
The water heater must be switched off at the switchboard. Phone Aquamax
Service to arrange for inspection.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater
(refer to page 30) it may discharge a small quantity of 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.
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