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16 MAINTAINING AND
SERVICING THE
HEATPUMP
In order to ensure your heat pump's long service life and
uninterrupted operation, the following inspections must
be conducted a few times a year, and more frequently
during the first year. Remember to also maintain and
inspect the accessories in accordance with their
instructions.
16.1 Maintenance notice
Maintenance functions can be used as a method of early
prevention on periodical control. To make it easier to
remember the equipment maintenance, the controller can
be programmed to give a maintenance notice.
Maintenance notice will appear on the display of the
controller on selected intervals, disappears by pressing the
Reset button.
This operation is carried out at the "Expert " level.
1.
Press the OK button to access the menu.
2.
Select Service/special operations, press the OK
button.
3.
Select control row 7070, Heat pump's interval.
4.
Scroll to the row interval in months.
5.
Return to the start with the ESC button.
16.2 Inspections
Servicing must only be completed by a person with the
required competency.
The refrigerant circuit must only be maintained by an
authorised refrigerating equipment technician
General appearance and leaks
Check the interior and exterior of the heat pump for liquid
leaks, oil and other deviations from normal operation. The
safety valves expel some water due to pressure changes as
part of their normal operation.
Liquid level and strainers of the collector
Check the liquid level of the collector and add more
liquid if necessary. After commissioning, it may be
necessary to add liquid over the course of a few days.
Having to add a few litres is normal. If the liquid level is
too low, allow the pump to run normally, open the
admission valve and fill the tank with heat transfer liquid.
If you need to repeatedly add liquid, contact an
installation or maintenance company. The liquid level in
the tank should drop slightly when the pump is activated
and rise when the pump is stopped. Diverging behaviour
is a sign of air, incorrect circulation direction or a blocked
strainer.
Check and clean the collector strainer. The strainer
should be checked several times immediately after
v2-7 24052017
commissioning. However, avoid unnecessary opening of
the collector.
Checking the safety valves
Check the operation of the valves twice a year by turning
the cap. Ensure that water comes out of the overflow pipe.
16.3 Nominal curves of sensors
NTC10k (all sensors of the device, excluding the outdoor
sensor)
NTC1k (outdoor sensor)
16.4 Testing inputs and outputs
Here we assist on how you can test the operations of
devices connected to the controller. The input/output test
suspends all the controller's normal control operations.
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Troubleshooting
