Viessmann 47-819-55 - Commissioning, Inspection, and Maintenance

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Commissioning steps
Inspection steps
Maintenance steps Page
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1. Commissioning the system............................................................................................... 33
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2. Filling the heating system................................................................................................. 35
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3. Checking all connections on the heating water and DHW sides for leaks................... 37
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4. Venting the heating system............................................................................................... 37
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5. Checking the gas type....................................................................................................... 38
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6. Removing the front panel.................................................................................................. 38
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7. Checking the static pressure and supply pressure........................................................ 39
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8. Function sequence and possible faults........................................................................... 41
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9. Setting the maximum heating output............................................................................... 42
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10. Performing an actuator test.............................................................................................. 42
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11. Adjusting the integral circulation pump rate................................................................... 42
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12. Checking the balanced flue system for leaks (annular gap test).................................. 45
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13. Burner adjustment when connecting multiple flues to a shared flue system.............. 45
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14. Removing the burner......................................................................................................... 46
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15. Checking the burner gasket and burner gauze assembly.............................................. 47
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16. Checking and adjusting the ignition and ionisation electrodes.................................... 49
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17. Checking the back draught safety devices...................................................................... 50
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18. Cleaning the heating surfaces.......................................................................................... 51
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19. Checking the condensate drain and cleaning the trap................................................... 52
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20. Installing the burner........................................................................................................... 53
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21. Checking the neutralising system (if installed)
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22. Checking the flow limiter (only for gas condensing combi boiler)............................... 54
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23. Checking the expansion vessel and system pressure................................................... 54
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24. Checking the safety valve function
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25. Checking the electrical connections for firm seating..................................................... 55
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26. Checking all gas equipment for leaks at operating pressure........................................ 55
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27. Fitting the front panel........................................................................................................ 55
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28. Checking the combustion quality..................................................................................... 56
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29. Checking the flue system for unrestricted flow and leaks
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30. Matching the control unit to the heating system............................................................ 57
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31. Adjusting the heating curve.............................................................................................. 57
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32. Instructing the system user.............................................................................................. 57
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
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