© Intatec Ltd 2009
6
Installation
3. The supply to which the thermostatic shower valve is to be installed must be thoroughly flushed and
cleaned to remove any debris, which may have accumulated during the installation. Failure to remove
any debris will affect the performance and the manufacturer’s warranty of the product. In areas that are
subject to aggressive water, provision must be made to treat the supplies prior to the supplies entering
the shower valve.
4. The thermostatic shower valve has been designed for vertical installation and surface mounting.
5. The thermostatic shower valve will be installed in such a position that maintenance of its components,
associated valves and the commissioning and testing of the shower valve can be undertaken.
6. The hot and cold water supplies must be connected to the valve strictly in accordance with the
indications on the body of the valve i.e. hot water supply to the hot port of the valve.
7. In a situation where one or both of the water supplies are excessive, it is recommended to fit a Pressure
Reducing Valve to reduce the pressure(s) to within the limits as quoted previously.
8. Any thermostatic shower valve must be fitted with a back flow prevention device, such as check valves
to prevent the cross contamination of supplies. The thermostatic shower valve is supplied complete with
integral insert check valves and strainers.
9. The fitting of isolation valves is required as close as is practicable to the water supply inlets of the
thermostatic shower valve.
10. The fitting of strainers is recommended as close as is practicable to the water supply inlets of the
thermostatic shower valve.
11. It is essential that the fail safe thermostatic shower valve should not be installed in situations where
there is a possibility of the valve being deprived of water or where demands for water are greater than
the actual stored supplies.
12. To ensure that the performance levels of the thermostatic shower valve are maintained (in the event of
cold water failure), the temperature of the hot water supply at the point of entry to the thermostatic
shower valve must be a minimum of 10˚C above the commissioned mixed water discharge
temperature.
13. The fail-safe thermostatic shower valve must not be subject to any extreme temperature variations either
during the installation or under normal operating conditions.
Commissioning
Important: - The following instructions must be read and understood prior to commissioning the
thermostatic shower valve. If under any circumstances there are aspects to the installation / system which
do not comply with the specification laid down, the valve MUST NOT be put into operation until the
system / installation complies with the specification. However if all these conditions are met, proceed to
set the temperature as follows;
1. Ensure that the system is thoroughly cleaned and free from any debris prior to commissioning the
thermostatic shower valve.
