Viessmann BWT 221.A06, Installation And Service Instructions Manual, Page: 51 / 124

51
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
• • •
1. Opening the heat pump .................................................. 52
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2. Writing reports ................................................................ 52
• • •
3. Checking the refrigerant circuit for leaks ..................... 53
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4. Filling and venting on the primary side ........................ 53
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5. Filling and venting on the secondary side ................... 54
• • •
6. Checking the expansion vessel and heating circuit
pressure ........................................................................... 57
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7. Cleaning the DHW cylinder ............................................ 57
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8. Replacing the magnesium anode .................................. 59
• •
9. Checking the tightness of electrical connections
• • •
10. Closing the heat pump
• • •
11. Closing the heat pump, switching on main fuse/MCB
•
12. Commissioning the system ........................................... 59
• • •
13. Checking the system function (e.g. actuators,
temperatures, poss. heat meter) ................................... 66
•
14. Instructing the system user ........................................... 66
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5601 574 GB
Service