Ariston Unvented Hot Water Storage Cylinders User Manual

Page 8

The cold water combination valve can be connected either close by
the unit or alternatively it may be installed in a remote position from
the unit as there is no requirement to site it in close proximity to the
cylinder. This allows a flexible and convenient installation. However, it
is important to note allowances for the discharge pipe work from the
expansion relief valve must be accounted for.

A balancing port is supplied on the 22mm valves (for units above 50
litres) and 28mm valves (for 500 litres units) allowing balanced cold
water supply to the rest of the building giving constant results for
mixer and shower valves. If the facility is not needed a plug is
supplied. Refer to

. 2.7 and F

. 2.8

Although this facility is not built into the 15mm valve (supplied with
model ST50), a tee piece may be inser ted between the two
components giving the same result. Refer to

. 2.6

OTE

HERE SHOULD BE NO OTHER VALVES FITTED BETWEEN THE CYLINDER AND

THE EXANSION VALVE

2.8

OLD

ATER

OMBINATION

ALVE

15mm
COLD
MAINS IN

15mm

TO CYLINDER

3/4” B.S.P. CONNECTIONS
FOR EXPANSION VESSEL

EXPANSION RELIEF

VALVE (SET AT 6 BAR)

NON-RETURN

VALVE (WITHIN HOUSING)

TEE PIECE

FOR BALANCED

COLD WATER

TAKE OFF

(NOT SUPPLIED)

SERVICEABLE 1/2” PRESSURE

REDUCING CARTRIDGE AND

LINE STRAINER

For Model ST 50

. 2.6

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