69
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps
Page
•
•
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1. Opening the heat pump
.................................................. 71
•
2. Compiling reports
........................................................... 71
•
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 refrigerant lines and internal unit
............. 72
•
6. Filling refrigerant lines and the internal unit
................ 75
•
•
•
7. Checking the refrigerant circuit for tightness
.............. 76
•
8. Filling and venting the secondary side
........................ 77
•
9. Filling and venting the solar circuit
.............................. 79
•
•
•
10. Checking expansion vessel and heating circuit
pressure
........................................................................... 79
•
11. Cleaning the DHW cylinder
............................................ 79
•
12. Replacing the magnesium anode
.................................. 81
•
•
13. Checking electrical connections of the internal unit
for firm seating
•
•
•
14. Checking that condensate can drain away freely from
the external unit condensate pan
•
•
•
15. Checking the free running of the fan in the external
unit
................................................................................... 81
•
16. Cleaning the external unit heat exchanger
(evaporator)
..................................................................... 81
•
17. Checking thermal insulation of flared connections
•
•
18. Checking electrical connections of the external unit
for firm seating
................................................................ 82
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5623 661 GB
Service
