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INTRODUCTION
Please read these instructions carefully and keep in a safe place for future reference.
DIMENSIONS
NOTE: ALL DIMENSIONS IN MILLIMETRES
General Installation Requirements.
The installation must comply with regulations of the Local Water Authority as contained in
their bylaws. All of the taps in this range are single flow (the hot and cold water mix in the
body) and should therefore be supplied with hot and cold water at balanced pressures,
both from the tank or both from the mains (via a combination boiler for example). If the taps
are not supplied at balanced pressures then the mixer will not function correctly. It will also
be necessary to fit non-return valves on both hot and cold feeds.It is very important that all
pipework is flushed thoroughly after installation to avoid damaging the ceramic discs.
Minimum/Maximum working pressure
These taps are suitable for high and low pressure installations They are fitted with a quarter
turn ceramic disc cartridge which provides a good flow rate with very smooth movement.
To ensure that the mixer works adequately under low pressure, the cold water storage tank
should be at least 2 metres above the highest installed position. The maximum water
pressure is 6 bar (note: mains cold water is normally supplied at between 2 and 3bar). For
installations where the mains pressure exceeds 6 bar a pressure reducing valve should be
fitted.
The tap is fitted with a flow straightener for use in low pressure installations. If your water
is supplied at high pressure you may prefer to change the nozzle to an aerator.
Approvals
All products are manufactured using materials tested and approved under the Water Bylaws
Scheme and comply with requirements of British Standard 5412:1996 where applicable.
Preparation and byelaw requirements
These taps are single flow so the hot and cold water mix in the body. Water byelaws require
that where the hot water is supplied from a tank and cold from the mains, non return valves
are fitted on both hot and cold pipes as close as possible to the tap. These are not supplied.
Where combination boilers are fitted it is only necessary to shut off the incoming mains and
turn the boiler off and non return valves are not required.
WARNING
Before installing the new mixer it is essential that you thoroughly flush through the
supply pipes in order to remove any remaining swarf, solder or other impurities.
Failure to carry out this simple procedure could cause problems or damage to the
working of the mixer.
These hints have been prepared for your guidance, you must exercise due care at all times.
We do not accept responsibility for any problems that may occur through incorrect
installation.
WP120WNC
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9
4
102
130
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M
A
X
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50
G1/2
92-108
22
186
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0