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Heating & Hot Water, Pre-Plumbed Installation
Starting the unit in heating mode
Press the power button (top left) AU or 0.0C will show, the unit is automatic mode using an external
run signal. Turn up your thermostats or underfloor heating to send a run signal to the unit, the pump
will start within 3 minutes, a little house with a circle around it appears in the status window, the
compressor in the outdoor unit starts after 3 minutes, you will see the symbol for the compressor in
the status screen. It's a little milk churn with a C in it. The pipework will begin to heat up.
Check the flow temperature by pressing oval View button, it will show 4 sensors. The house is the
temperature at the remote controller which is not used. The house with the circle around it is the
water outlet temperature from the heat pump. The Christmas tree is the air temperature outside.
The tap is the cylinder temperature. If the outdoor unit doesn't start after 5-minutes, see problems
page.
Over time the unit will warm up, now check all the radiators or under floor loops are hot as well.
Starting the System in hot water mode
Clean the filter balls again.
Press DHW on/off (power) button to start the unit, top right button.
A picture of a tap appears with dots by it, press Mode until 2 dots appear. This means the HP will heat
the water with help from the immersion.
Set the cylinder temperature press the oval Set button then press + until 48°C shows. The heat
pump will start heating the cylinder if its colder than 43°C and will heat it up to 50°C then it will stop.
The unit will take up to 6 minutes to start in Hot water mode, be patient
When the unit is heating the cylinder, this coke can symbol shows on the controller. The HW valve will
open but the heating valve will not close for 40 seconds, this is normal.
Run test in hot water mode
Press View until a picture of a tap appears, this is the hot water cylinder temperature, note it down.
After 15 minutes of running check the hot water temperature again, it should have risen, again note the temperature. If the unit is
running well it should heat the cylinder to 48°C without needing the immersion heater. Now clean the filter ball again.
The Water storage temperature is lower (48°C) than a normal cylinder. It's important to check that any shower or bath mixers do not
further reduce the water temperature. Using your thermometer check that the hot water comes out the tap at the same temperature
it leaves the cylinder. If it doesn't you might need to make adjustments to taps mixers etc.. DON'T raise the cylinder temperature to
compensate.
Now handover the system to the end user, see page 7-11, fill in the warranty card on page 5 and online. Your system is now
fully commissioned, congratulations.
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