Ariston AQUABRAVO ITSI 255 Instructions For Installation, Servicing And Use - Page 9

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3.8

onnection oF

Ater

upply

For floor standing models:

Ains

On the front of the unit there is a label to identify the connection ports.

Please check this before making any connection to the unit.

For units up to 300 litres it is recommended that all mains cold water supply

pipe work is a minimum of 22mm. For 500 litre models the supply should be

28mm. An isolating valve should be installed between the cold water supply

and the cylinder for servicing. ALL PIPEWORK MUST BE FLUSHED TO

AVOID DAMAGE TO THE CONTROL VALVES.

Please refer to F

Draining taps must be located in acessible postions to permit the draining of

the whole cylinder. The taps must be a minimal size of at least 15mm

nominal size (preferably 22mm), and manufactured in accordance with BS

2879:1980.

When installing the expansion vessel Ariston recommend it be connected

directly to the combination valve (see Figs 3.9 - 3.10).

MportAnt

When installing the expansion vessel,

vertically as air can become trapped in the expansion vessel resulting in

noise.

Do not use a flexible hose to connect the expansion vessel. This must be

hard piped in order to avoid vibration.

See below for acceptable installation practices.

✘

. 3.1 - 3.7 for a suggested installation layout.

iGs

ote

install the expansion vessel

Do not

✔