Viessmann VITOCAL 300, Installation And Service Instructions Manual

Page: 41 / 160

For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
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1. General information
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43
• • •
2. Switching the system ON/OFF switch and the main
MCB OFF/removing the main fuse
• • •
3. Checking the refrigerant circuit for leaks
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4. Fill the system and check for leaks
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5. Checking the diaphragm expansion vessel and the
pressure in the heating circuit
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6. Checking the function of all safety valves
•
7. Only for type BWC: Filling the primary circuit and
checking the pressure
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8. Only for type WWC: Filling the primary and the
intermediate circuit and checking the pressure
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9. Checking the connections at terminals 1 and 2 as
well as 5 and 6
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10. Checking the tightness of electrical connections
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11. Isolate the compressor: Disconnect cables from
X8.2
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12. Switching ON the main MCB
•
13. Checking the input terminals and contactors
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•
14. Setting the operating mode selector to "
9
" (OFF)
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15. Switching the system ON/OFF switch ON
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16. System configuration
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17. Checking the sensor connections
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18. Switching the system ON/OFF switch and the main
MCB OFF/removing the main fuse
•
19. Disconnecting the compressor from terminal X8.2
•
20. Resetting the main MCB/reinstating the main fuse
and switching the system ON/OFF switch ON
Steps - commissioning, inspection and maintenance
41
Commissioning, inspection, maintenance
55
92
901
GB
Service