Technical data

8 Installation procedure

8.2 Secondary system Pipework

•

Connect the two cold water control valves together as

shown in fig 11., ensuring that the orientation of the

valves, when installed in the cold mains supply, allows

the 15 mm outlet of the expansion relief valve to be

connected to the tundish.

Note:

The Expansion relief / non return valve has a

R 3/4 connection, and is supplied fitted with a

PTFE ring to ensure a watertight seal when

screwed into the pressure limiting valve (separa-

te instructions are supplied with the control val-

ves).

•

Provide a cold water mains supply to the VANTAGE.

To ensure optimum performance from the VANTAGE,

and particularly in installations where the balanced

pressure cold water outlet (2, fig. 11) is to be used, the

pipework provided from the building mains stop valve

to the VANTAGE cylinder should be minimum 22 mm

copper tube.

•

Install the assembled cold water control valves (fig. 11)

in the cold mains supply at a convenient position adja-

cent to the VANTAGE cylinder, ensuring adequate

space exists for service access.

Important

No valve shall be installed between the assemb-

led cold water control valves and the cylinder.

Vaillant Vantage 120/150/20022

Fig. 10

3 port

diverter valve

Balancing

valve

position

VIH 367/1

Fig. 11

VIH 368/1