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The Pressure Relief Valve may discharge water and it should be piped to a safe but visible drain point.
A tundish should be incorporated close to the appliance where any discharge will be visible nut not hazardous. The pipe work
should have a continuous fall to the drain and the diameter should not be lower than the hole in the Pressure Relief valve.
When the water is being heated the water expands and it is possible that some water will drip (up to 3% of the total volume
each heating cycle). It is normal.
Electrical power supply.
Never connect to the electricity supply an empty water heater.
Ensure the power supply to the socket into which the appliance is plugged is in accordance with the rating label on the
heater.
This appliance must be earthed.
All models are supplied with an electrical interrupt cut-out. This will switch off the heater if, for any reason, it overheats.
Should the cut-out operate, disconnect the water heater from the electricity supply and remove the cause for the
overheating.
Commissioning.
IMPORTANT. Never connect to the electricity supply an empty water heater.
Turn on all the hot water system taps and thoroughly flush allowing water to flow until no air is present. This will
automatically vent the integral hot water store of any air.
Check there is no leakage in the installation.
Cold Water Inlet Pipe
Dielectric Hose
Dielectric Hose
Hot Water Outlet Pipe
Mono-directional Security Valve
Pressure leakage hole
