User`s guide

Page 2
Adjusting the heat pump
OFF/ON Standby Button
When the unit is ON, the operation LED is
lit and the compressor will operate when
required. When in standby the
compressor will not operate however the
circulation pump and inline flow boiler can
be activated to provide frost protection.
The green LED should remain on at all
times.
Operation Mode Button
Press the mode button to cycle through
the following options. A block will be
displayed against the appropriate text on
the controller‟s screen.
1. HEAT ONLY
2. HEAT + TANK
3. TANK ONLY
Setting the DHW timer schedules
If required, the DHW production times
can be adjusted by pressing the „timer „
button. Consult the installation
instructions to find out how to set the time
periods.
Quiet Operation Button
If pressed, this will reduces the noise of
the heat pump by This will affect the COP
and kW output. This feature can be set up
on the “timer”. Consult the installation
instructions for more information.
Boosting the amount of space heating
During periods of cold weather, or if you
require the property to be heated up
quickly, the boost button can be pressed
on the wall mounted controller. The boost
heater will automatically turn off once the
property is up to temperature.
During an error the system will use an electric flow boiler
to keep the property warm – this will have higher running
costs compared to the heat pump. The user should
regularly check the system controller for error such as
H91. In the event of an error you should contact your
installer.
Adjusting the central heating
The central heating is controlled using the wall mounted
thermostat shown below. You should press the large
buttons to adjust the room temperature.
Increasing the room temperautre
If the red lights are not on, press the „Warm / Cool‟ button
(3). The blue light means the unit is working on the set
back temperature. The „+‟ or „-„ buttons do not work when
the thermostat is in setback.
When one or more red lights are on, you can increase the
temperature by pressing the „+‟ button (1). For example,
press once to go up by 1 degree C, or press twice to go
up by 2 degrees C.
Decrease the room temperature
When the two or three red lights are on, the temperature
can also be lowered to the centre position by using the „-„
button (2).
‘Short’ heating off periods
If you are going to bed or going out for the day you can
turn the heading off by using the „Warm / Cool‟ button (3)
until the blue lights come on. The heating will
automatically come back on during the next time period.
‘Long’ off periods
If you want to turn the heating off long periods such as
you are going on holiday or during summer you press the
blue button (4) under the flap (7). When you want to go
back to normal operation they will open the flap and
press the Blue button again.
Time periods
The wall thermostat will automatically adjust between
heating and set back temperatures. If you adjust the
temperature using the large buttons the temperature will
revert back to the pre-set value when the next time period
starts. To change the time periods consult the PRT1
manual.