62
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps
Page
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•
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1. Opening the heat pump
.................................................. 64
•
2. Writing reports
................................................................ 64
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3. Flushing the refrigerant lines and the internal unit
with nitrogen (the internal unit is filled with nitrogen;
positive pressure approx. 2 bar)
•
4. Tightness and pressure test with dry nitrogen at
43 bara/4.3 MPa
•
5. Evacuating the refrigerant lines and internal unit
....... 65
•
6. Filling refrigerant lines and the internal unit
................ 68
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•
•
7. Checking the refrigerant circuit for leaks
..................... 69
•
8. Filling and venting on the secondary side
................... 70
•
•
•
9. Checking expansion vessel and heating circuit
pressure
........................................................................... 72
•
•
10. Checking electrical connections of the internal unit
for firm seating
•
•
•
11. Checking that the external unit condensate pan
enables condensate to drain away freely
•
•
•
12. Checking the free running of the fan in the external
unit
................................................................................... 73
•
13. Cleaning the heat exchanger (evaporator) in the
external unit
.................................................................... 73
•
14. Checking the thermal insulation on the swaged
connections
•
•
15. Checking the electrical connections of the external
unit for firm seating
........................................................ 74
•
•
•
16. Closing the heat pump; resetting the circuit breaker/
main fuse
•
•
•
17. Starting the heat pump
................................................... 74
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5601 429 GB
