66
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
.................................................. 68
•
2. Writing reports
................................................................ 68
•
3. Flushing the refrigerant lines and the internal unit
with nitrogen (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
............. 69
•
6. Filling refrigerant lines and internal unit
...................... 72
•
•
•
7. Checking the refrigerant circuit for tightness
.............. 73
•
8. Filling and venting the secondary side
........................ 74
•
•
•
9. Checking expansion vessel and heating circuit
pressure
........................................................................... 76
•
10. Cleaning the DHW cylinder
............................................ 77
•
11. Replacing the magnesium anode
.................................. 79
•
•
12. Checking electrical connections of the internal unit
for firm seating
•
•
•
13. Checking external unit condensate pan for free
drainage
•
•
•
14. Checking the free running of the fan in the external
unit
................................................................................... 79
•
15. Cleaning the external unit heat exchanger
(evaporator)
..................................................................... 79
•
16. Checking thermal insulation of flared connections
•
•
17. Checking electrical connections of the external unit
for firm seating
................................................................ 80
•
•
•
18. Closing the heat pump, switching on main fuse/MCB
•
•
•
19. Starting the heat pump
................................................... 81
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5600 950 GB
