63
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
• • •
1. Opening the heat pump.................................................. 65
•
2. Compiling reports........................................................... 65
•
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....... 66
•
6. Charging the refrigerant lines and internal unit.......... 69
• • •
7. Checking the refrigerant circuit for tightness.............. 70
•
8. Filling and venting the secondary side........................ 71
•
9. Filling and venting the solar circuit.............................. 73
• • •
10. Checking expansion vessel and heating circuit
pressure........................................................................... 73
•
11. Cleaning the DHW cylinder............................................ 73
•
12. Replacing the magnesium anode.................................. 75
• •
13. Checking electrical connections of the internal unit
for firm seating
• • •
14. Checking the free running of the fan in the external
unit................................................................................... 75
•
15. Cleaning the external unit heat exchanger
(evaporator)..................................................................... 75
•
16. Checking thermal insulation of flared connections
• •
17. Checking electrical connections of the external unit
for firm seating................................................................ 76
• • •
18. Closing the heat pump; resetting the circuit breaker/
main fuse
• • •
19. Starting the heat pump................................................... 77
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5546 699 GB
Service
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