9 Commissioning
28
9 Commissioning
9.1 Filling Secondary D.H.W. Circuit
Note:
Do not manually open the temperature and pres-
sure relief valve or expansion relief valve for
venting purposes (any foreign matter in the
pipework may cause damage to the valve seats).
•
Ensure that the cylinder drain valve (E, fig. 6) is clo-
sed.
•
Open all the hot and cold water taps or other terminal
fittings.
•
Open the mains water supply to the VANTAGE and
continue filling until water runs freely from the
terminal fittings, ensuring all air pockets are purged.
•
Close the terminal fittings and check the system for
leaks.
The system should now be thoroughly flushed.
•
Open hot water taps at opposite ends of the system
and allow water to discharge for at least 5 minutes.
•
Close the hot water taps.
