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The cold w
ater combination valve can be connected either close by
the unit or alter
natively 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
e
xpansion 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
FIG. 2.7 and FIG. 2.8
Although this facility is not built into the 15mm valve (supplied with
model ST50), a tee piece may be inserted between the two
components giving the same result. Refer to
FIG. 2.6
N
OTE!
T
HERE SHOULD BE NO OTHER VALVES FITTED BETWEEN THE CYLINDER AND
THE
EXANSION VALVE
.
2.8 COLD WATER
COMBINATION VALVE
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
FIG. 2.6
www.tradeplumbing.co.uk Call Sales On 08708034288
www.tradeplumbing.co.uk Call Sales On 08708034288