important - please read
general installation
2
7
maintenance
Please read these instructions carefully before starting installation and keep for future
reference.
Remove all packaging and check the product for missing parts or damage before
starting installation.
Any alterations made to this product and fittings may infringe water regulations and
will invalidate the guarantee.
The installation must comply with all Local/National Water Supply Authority
Regulations/Byelaws and Building and Plumbing (UK:BS6700) Regulations.
We strongly recommend that you use a qualified and registered plumber.
Thermostatic Valves
This mixer valve is suitable for any water system, provided minimum water pressure
is met. Where instantaneous heaters are used, the flow of hot water sufficient to start
and go on burning must reach the minimum flow required – as specified by the heater
manufacturer.
These fittings are mixing devices and therefore water supplies must be reasonably
balanced.
Where connections are made to the mains cold water supply, WRC approved single
check valves must be fitted to both hot and cold inlets. This is a stated requirement of
Water Supply (Water Fittings) Regulations 1999 Schedule 2, Section 6 G15.13.2
Before making any inlet pipe connections, all supply pipes MUST be thoroughly
flushed to remove debris. Failure to do so could result in damage or low flow from the
mixer unit. Water Supply (Water Fittings) Regulations 1999 Schedule 2 Section 4 G13.1
The fitting of isolating valves to the inlet feeds is advised for ease of maintenance.
Please take great care when installing this mixer not to damage its surface.
Operating pressures (on hot and cold line) should be kept as balanced as possible in
order to assure optimum efficiency.
Note: When pressure is higher than 5 bar a pressure reducer is required to be fitted
before the valve.
Please note if installing in an enclosed environment, access should be left for servicing
and maintenance. No costs relating to inadequate access can be accepted.
This thermostatic valve is fitted with a double filtering facility. Filters are fitted on the
water inlets and on the thermostatic cartridge.
Depending on the water quality, filters may become dirty, causing reduced flow and
inefficient working of the valve.
To clean the filters, you must first remove the cartridge from the housing.
Removing the Cartridge
1. Shut off the water supply to both inlets at the isolating valves.
2. Remove the handle – pull it out.
3. Remove the small screw from the valve ring and pull off, taking care not to loose the
temperature stop button and spring. Pull off the stop ring.
4. Unscrew and remove the thermostatic cartridge.
5. Clean the filters by rinsing them in water to remove the dirt and soaking them in
vinegar or descaling agent.
6. Before reassembling the cartridge, clean its housing with a wet cloth and grease the
‘O’ rings on the cartridge, reassemble the cartridge.
7. Push on the stop ring with the notch at the 12 o’clock position, followed by the valve
ring with the temperature stop button at 6 o’ clock and secure using the retaining
screw do not over tighten. Push on the control handle body and tighten the allen bolt,
screw on the handle.
8. Make sure everything is tight and secure and turn on the water supply at the
isolating valves.
9. Now check the water temperature to ensure you are happy with it.
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