I n s t a l l a t i o n a n d u s e r m a n u a l
HP1100/1500 COMPACT PREMIUM
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7.2
Defrosting
As described
in section 3.5 Security and control systems, your heat pump is equipped with active
defrost protection. Defrost protection has following modes:
1.
Normal defrosting – defrosting gets activated in the case heat pump measures low
temperature of the evaporator (sensor T1) (-7°C). It is possible to change this
setting. Manufacturer has preset the settings for optimal heat pump operations.
2.
Cyclical defrosting – this mode gets activated if evaporator temperature sensor
fails (T1). In this situation your heat pump does not have a measured input if
defrosting should be activated or not. Thus in order to protect the heat pump it will
automatically defreeze itself in 45min intervals.
3.
Forced defrosting – this mode can only be activated manually by pressing and
holding
button for 5 seconds.
Heat pump signalizes defrosting by blinking the ‘sun’
icon of heating or .
7.3
Winterizing
Your heat pump continuously contains water in its water heat exchanger. This water will freeze up
and damage irreversibly the heat exchanger if exposed to sub-zero air temperatures, normally during
winter time. It is then necessary to prepare the heat pump for sub-zero air temperatures (e.g. winter
time). Generally, the water from inside the water heat exchanger must be removed. Winterizing is
done on heat pumps which do not operate all year round. In the case you operate your heat pump all
year round and/or also in winter months when ambient air temperature decreases below 0°C it is
necessary to ensure continuous water circulation through the water heat exchanger with water of
temperature at least 20°C. In the case this is not done, water inside the water heat exchanger may
cool down and subsequently freeze up which causes destructive damage to heat exchanger and the
heat pump will no longer be operational. Warranty excludes such damage.
Winterizing:
1.
Disconnect the heat pump from the mains (e.g. by turning the circuit breaker off).
2.
Close the bypass valves number 2 and 3 (Please refer
to section 4.2 Connection to water
filtration circuit).
3.
Make sure that the heat pump is disconnected from the mains (electricity). Do not
continue if the heat pump still has power supply or shows signs of it.
4.
Unscrew the hose nuts of both water inlet and outlet in order to allow air to enter the water
heat exchanger (please refer
to section 4.3 Needed components for connection to water
circuit). This will actually allow you to drain water from the heat exchanger.
5.
Unscrew the front fixation screws (silent blocks).
6.
Bent the heat pump a bit to the back in order to remove as much water as possible from the
heat exchanger. Once the heat pump is bent over (from original 90° angle to approximately
80°) and no water leaks out, you have removed the water. To get graphic visualition please
view below drawings and/or video from below QR code.
90°
app.
80°
Video
