Viessmann Vitocal 242-S Installation And Service Instructions Manual page 48

Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
Commissioning steps
Inspection steps
Maintenance steps
• • •
1. Opening the heat pump..................................................................................................... 49
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2. Compiling reports.............................................................................................................. 49
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3. Purging the refrigerant lines and the internal unit.......................................................... 49
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4. Checking tightness of the refrigerant lines..................................................................... 49
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5. Evacuating the refrigerant lines and internal unit........................................................... 50
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6. Charging the refrigerant lines and internal unit.............................................................. 51
• • •
7. Checking the refrigerant circuit for tightness................................................................. 52
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8. Filling and venting the secondary side............................................................................ 52
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9. Filling and venting the solar circuit.................................................................................. 53
• • •
10. Checking expansion vessel and heating circuit pressure............................................. 54
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11. Cleaning the DHW cylinder............................................................................................... 54
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12. Measuring the anode earth current with an anode tester.............................................. 55
• 13. Checking the magnesium anode...................................................................................... 55
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14. Replacing the magnesium anode..................................................................................... 55
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15. Checking electrical connections of the internal unit for firm seating
• • •
16. Checking the free running of the fan in the external unit............................................... 55
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17. Cleaning the external unit heat exchanger (evaporator)................................................ 56
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18. Checking thermal insulation of flared connections
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19. Checking electrical connections of the external unit for firm seating.......................... 56
• • •
20. Closing the heat pump....................................................................................................... 56
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21. Switch ON the power......................................................................................................... 56
• • •
22. Starting the heat pump...................................................................................................... 57
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23. Commissioning the system............................................................................................... 57
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24. Ticking the heat pump type............................................................................................... 63
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25. Checking the heat pump for noise................................................................................... 63
• • •
26. Checking the system function.......................................................................................... 64
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27. Instructing the system user.............................................................................................. 64
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