4 Commissioning
4.1 Prerequisites for commissioning
Installation, commissioning, or service of the appliance is to be carried
out by an authorized service provider, adhering to all local regulations
and requirements.
Do not touch any liquid without protection. Contact with operating liquids
may cause frostbite. Always immediately inform operating staff about
leaks.
Before performing any work on components with hot surfaces, make
sure that the component has cooled down.
The removable front panels of the heat pump are heavy and bulky. Use
caution when detaching and lifting the panels.
The person commissioning the system must:
● have qualification and competence for installing high pressure devices
● have expert knowledge about heating and cooling systems
● be familiar with the heat pump control system
It is recommended that an authorized and certified expert performs
commissioning.
Tasks to be completed before commissioning:
● Connect the electrical supply to the heat pump
● Fill and bleed the pipe lines
● Connect the feed cables and sensors
● Connect the safety valve blow-off pipe to outside air.
● Check the refrigerant level.
● Connect all pipes as indicated in the PI diagram or according to the instructions in
section
Installation site requirements
.
● Check that the shut-off valve of the liquid line open.
Considerations for low ambient temperatures
To avoid freezing, protect liquid systems with insulation tape and trace heating cables
and by using a suitable antifreeze. Ensure that the liquid circulates by keeping the
pumps running. Insulate heat exchanger nozzles.
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