Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 25

3.6.4 SOLAR PRESSURE RELIEF VALVE
A pressure relief valve is included in the solar primary circuit.
Pipework to convey any solar fluid discharge to a suitable container must be installed.
The container should be able to withstand temperatures up to 180°C and be big enough to
collect the volume of solar fluid within the solar primary circuit.
The container should be located as close to the Electromax Solar as possible.
The container should be accessable.
A small amount of heat transfer fluid should be left in the container.
It is recommended that the pipework is routed vertically down from the pressure relief valve
and through the left hand side panel handle.
The solar expansion relief should not be connected to the temperature and pressure relief
valve discharge pipework.
FIGURE13: SOLAR DISCHARGE
SOLAR PRESSURE
RELIEF VALVE
SOLAR
DISCHARGE
PIPE
CONTAINER
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