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Getting started
1.
Filling the water heater.
Fill the water heater by opening all hot water taps and opening the cold water inlet to allow
the water heater to fill and air in the system to be expelled. Close each hot water tap, as the
flow becomes free of air. Check all piping for leaks.
Check that water flows freely by gently operating the lever on the Pressure Temperature
Relief valve.
Power should not be turned on until the water heater is completely filled with water.
2.
Checking good working order
Switch on the water heater. Check the screen for errors. If an error appears, refer to the
system diagnostic section. The temperature setting appears.
After 3 minutes
the
compressor and the fan start.
Select the "FAN" setting and configure according to the recommendations in
Setting the
regulation.
After the compressor has been working for about 10 minutes, the temperature at the air
outlet is at least 3 to 4°C below that of the incoming air. The water drips out of the drain of
the pressure limiting valve. This drain must be connected as described in Hydraulic
connection, page 9. This is completely normal, the water is expanding due to the heat.
Check that the connections are watertight again.
If the check is OK, your appliance is ready. It is now working according to the factory
settings, in AUTO mode.
Refer to the settings section in this manual to optimise the operation of your appliance.
NOTE
When heating up with the electric backup and depending on the quality of water, the water
heater may make a slight kettle-like noise. This noise is normal and is not a sign of a faulty
appliance.
The relief of partial vacuum.
A vacuum would be relieved from the system whenever a tap is opened as the outlet is at
atmospheric pressure and the tank is at mains pressure.
