61
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
.................................................. 63
•
2. Compiling reports
........................................................... 63
•
3. Purging the refrigerant lines and the internal unit with
nitrogen (internal unit is filled with nitrogen; positive
pressure approx. 2 bar/0.2 MPa)
•
4. Tightness and pressure test with dry nitrogen at
43 bara/4.3 MPa
•
5. Evacuating the refrigerant lines and internal unit
....... 64
•
6. Filling the refrigerant lines and internal unit
................ 66
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•
•
7. Checking the refrigerant circuit for tightness
.............. 68
•
8. Filling and venting the secondary side
........................ 68
•
•
•
9. Checking expansion vessel and heating circuit
pressure
........................................................................... 71
•
10. Cleaning the DHW cylinder
............................................ 72
•
11. Replacing the magnesium anode
.................................. 74
•
•
12. Checking electrical connections of the internal unit
for firm seating
•
•
•
13. Checking that condensate can drain away freely from
the external unit condensate pan
•
•
•
14. Checking the free running of the fan in the external
unit
................................................................................... 74
•
15. Cleaning the external unit heat exchanger
(evaporator)
..................................................................... 74
•
16. Checking thermal insulation of flared connections
•
•
17. Checking electrical connections of the external unit
for firm seating
................................................................ 75
•
•
•
18. Closing the heat pump; resetting the circuit breaker/
main fuse
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5782 201 GB
Service