Biasi RIVA COMBI, Инструкция по установке и эксплуатации

Страница: 46 / 52

RIVA COMBI MANUAL - REV B
46
• Remove the four Phillips head
screws from the vent connector on
the boiler.
•
Remove the vent connector from the
boiler by pulling vertically on it.
•
Remove the first elbow from the
horizontal run of the exhaust to the
outside.
•
Using a flashlight, inspect each
length of vent pipe for obstructions
and dirt build up. Clean any that is
found with an appropriate sized
brush.
• Inspect the venture device inside the
outlet of the combustion fan. Make
sure that it is free of any dirt build up
or blockage.
•
Make sure the seals are properly
seated in the female ends of the vent
pipe with the fins facing the male
end of the pipe.
•
Reinstall the elbow onto the
horizontal run of the pipe first by
simply pushing the parts together.
•
Push the vent adapter down onto the
top of the boiler and reinstall the four
Phillips head screws.
To check the pressure at the venturi device, use the test points in Fig. 17.6.
• Remove the caps of the
pressure test points and
connect a differential
pressure gauge.
• Switch on the boiler.
• Compare the value on
the gauge with the
minimum values of
venturi pressure
indicated in the Section
2 on page 10.
Venturi test
points
Figure 17.6
17.12 Visual inspection of appliance:
Visually inspect all water joints, seals and connections for any evidence of leakage and
retighten, grease or replace them as necessary.
17.13 Gas pressures and soundness:
Check appliance for gas soundness. Recheck operational pressures and adjust as necessary as
described in Section 15.5 page 32 of this manual.
17. Annual Maintenance Cont.