For further instructions on individual steps, see pages indicated
Commissioning steps
Inspection steps
Maintenance steps
Page
! ! !
•
1. Filling the heating system
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
•
2. Venting the boiler
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
•
3. Venting the heating system
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
•
4. Filling the siphon with water
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
•
5. Checking the electrical mains connection
•
6. Language selection (if required) - only for the
weather-compensated control units
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
•
•
•
7. Pivot the control unit down to carry out
commissioning and maintenance work
. . . . . . . . . . . . . . . . . . . . . . . .
10
•
•
•
8. Function sequence and possible faults
. . . . . . . . . . . . . . . . . . . . . . .
10
•
•
9. Checking the gas type
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
•
10. Changing the gas type (see separate installation
instructions)
•
•
•
11. Checking static and supply pressure
. . . . . . . . . . . . . . . . . . . . . . . . . . .
13
•
•
•
12. Checking the CO
2
settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
•
13. Setting the max. output
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
•
•
•
14. Check all connections on the primary and DHW
side for leaks
•
•
•
15. Checking the burner (recording values on page
120 of the commissioning report)
•
16. Checking the balanced flue system for soundness
(annular gap check)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
•
•
17. Removing the burner and checking the burner
gasket (replace gasket every two years)
. . . . . . . . . . . . . . . . . . . . . .
19
•
•
18. Checking the burner gauze assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . .
20
•
•
19. Checking and adjusting the ignition and ionisation
electrodes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
Steps - initial start-up, inspection and maintenance
5
Initial start-up, inspection, maintenance
56
92
548
GB
Summary of Contents for VITODENS 333
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