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2.8 COLD WATER | The cold water combination valve can be connected either close by |
COMBINATION VALVE | 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 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
NOTE!
THERE SHOULD BE NO OTHER VALVES FITTED BETWEEN THE CYLINDER AND
THE EXANSION VALVE.
SERVICEABLE 1/2” PRESSURE
REDUCING CARTRIDGE AND
LINE STRAINER
EXPANSION RELIEF VALVE (SET AT 6 BAR)
VALVE (WITHIN HOUSING)
15mm
COLD MAINS IN
15mm
TO CYLINDER
TEE PIECE | 3/4” B.S.P. CONNECTIONS |
FOR BALANCED | FOR EXPANSION VESSEL |
COLD WATER |
|
TAKE OFF |
|
(NOT SUPPLIED) |
|
FIG. 2.6 | For Model ST 50 |
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