Vaillant TURBOmax VUW 242 E Service Manual download pdf (Page 15)

Boiler Installation Sequence 5

Instructions for Installation and Servicing turboMAX pro R3 15

5.8 Cold water mains inlet and hot water outlet

Flush all foreign matter from the mains supply before

connecting to the boiler.

• Connect the cold water service valve (1) to the cold

inlet water connection (3) of the appliance with the

washer (2) provided and tighten.

• Connect the cold water inlet pipe copper tail to the

cold water service valve and tighten.

• Connect the 15 mm hot water outlet copper tail (4) to

the hot water outlet connection of the appliance (6)

with the washer provided (5) and tighten.

Note!

The hot water outlet union nut is packed in with

the PRV fitting pack.

Fig. 5.7: Fitting the hot and cold water connections

5.9 Central heating flow and return pipework

Before connecting the heating circuit to the boiler appli-

ance, all pipework and radiators must be thoroughly

flushed to remove any installation debris.

• Connect the central heating flow (4) and return (1) ser-

vice valves to the appliance (6 and 3) with the washers

provided (2 and 5) and tighten the nuts. Ensure that

the valve spindles face downwards and the drain

points face to either side of the boiler.

• Connect the central heating pipework to the flow (4)

and return (1) tails.

Pressure Relief Valve

Connect a discharge pipe not less than 15 mm diameter

to the outlet of this valve.

The discharge pipework should be as short as possible

and installed with a continuous fall away from the boiler.

The pipe should terminate in a position which ensures

that any discharge of water or steam from the valve

cannot create a hazard to persons in or about the premi-

ses, or cause damage to any electrical components or

external wiring, and the point of discharge should be

clearly visible (see diagram in plastic bag).

Fig. 5.8: Central heating flow and return pipework

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Vaillant TURBOmax VUW 242 E Service Manual Page 15