How to service the heat pump
Introduction
This guide to the service of the heat pump contains procedures for preventive
maintenance and for check of relevant functions.
Intervals
Once annually.
Before start
The following must be available before start:
•
A soft brush
•
A vacuum cleaner
•
Proper tools to straighten bent slats
•
Common detergents
Warning!
Do not forget to disconnect all current to the unit and the unit parts before service.
Procedure,
maintenance
Do as follows to service the heat pump:
Step
Action
1
Check the coils for dust or dirt. If necessary, clean the alu slats by a soft
brush and a vacuum cleaner.
Alternatively you may blow compressed air through the coil against the
normal air direction
2
Straighten any bent slats using appropriate tools
3
Check and clean drip trays for dirt. See to it that there is a free flow through
the drain. Note: the water trap must be full
4
Check the sight glass in the liquid pipe of the cooling circuit. During stable
operation (
but not by change and start)
it must be full and free of bubbles
5
Check the pipe assemblies for refrigerant leaks (occur together with oil
leaks) and the refrigerant container (the receiver) for a certain amount of
refrigerant
Continued overleaf
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