Safety Valve Discharge Pipework - Vaillant Vantage 120 Installation Instructions Manual

Vaillant Vantage 120/150/200
Installation procedure 8
•
Connect the expansion vessel to the installed water
controls by either:
i. Screwing the vessel directly into the control assem-
bly at the purpose provided connection (3, fig. 11) or,
ii. Connecting the vessel to the control assembly via
copper pipe or a suitable approved flexible connec-
tion hose, ensuring that the vessel is adequately
supported.
Note:
An optional "Remote Expansion Vessel Mounting
Kit" (Art no. 2378083) is available for use with
VANTAGE cylinders. The kit contains a wall
mounting bracket and a 1 metre flexible connec-
tion.
•
Connect the balanced pressure cold water supply (if
required) to the pressure limiting valve.
Note:
In areas where the mains water pressure is high
(4 bar or above) the cold water supply to a bath
or shower mixer valve can be taken from the
balanced pressure cold water outlet (2, fig. 11) of
the cold water controls. This will ensure that
both hot and cold supplies to the mixer valve
are at approximately the same pressure. The
cold water supply for all other terminal fittings
should be teed into the cold water supply pipe-
work to the VANTAGE upstream of the cold
water controls.
•
Connect the DHW outlet pipework to the 22 mm
domestic hot water outlet on the VANTAGE (E, fig. 4).
Continue with 22 mm size pipe to the first tee fitting
after which 15 mm pipework should be adequate.
If the pipe runs are of excessive length or there are
several terminal fittings supplied, extend the length of
pipework in 22 mm. (See 7.3: Secondary System.)

8.3 Safety valve discharge pipework

•
Connect the temperature/pressure relief and expansi-
on relief valves to the tundish and install the discharge
pipework from the tundish in accordance with section
7.5: Discharge Pipework.
23