Care For Your Product

To find out how to care for your product simply select from the information on the right.

Thermostatic Mixer Valves

Cleaning Instructions (all types)

The showerhead should be cleaned periodically to remove lime scale or debris, which will reduce the performance of the shower. Frequency of cleaning will vary according to local water quality.

If scale deposits are stubborn, soak the showerhead in proprietary limescale
remover and rinse thoroughly before use.

WARNING Avoid risk of scalding. Always check water temperature before using the shower.

COMMISSIONING AND ANNUAL MAINTENANCE TESTING

On commissioning carry out the following checks and tests:

All the pipe work has been flushed through before fitting the valve.

The valve you have purchased matches the installation.

The supply pressures and temperatures are checked and all in the range specified in the instructions.

The isolation valves and strainers are fitted and clean of any unwanted material and do not restrict the flow and ensure both isolation valves are fully open. Turn the temperature control to cold and turn the flow on. Check the temperature is at the required minimum. Rotate the temperature controller gradually until it reaches the preset stop let it flow until the hot water has reached the valve and the temperature has stabilized. Check the temperature is 38°C =/-2°C. This is the valves factory preset.

Override the stop by pressing the button and rotate to maximum being careful to avoid scalding. Measure the temperature. The valve should then be checked to confirm the water isolation performs correctly. Run the valve at the 38°C stop position. Check the water temperature. Turn off the feed of cold water using the isolation valve. The water flow should fall to a very low flow, (possibly only a drip) after a few seconds. Collect the water after 5 seconds for 30 seconds and measure the temperature it should be below 46°C +/- 2°C. Turn on the cold water again and it should return after a few seconds to stabilise to 38°C +/- 2°C.

Adjustment of the temperature settings is only to be carried out by a competent TMV engineer as it is a technically difficult operation in which the valve can be easily broken. It can be done by removing the handle on the temperature controller, (noting carefully the assembly of the components), rotating the internal stops a few degrees in the required direction and then reassembling. All the commissioning checks should be redone again to ensure it now meets the required specification before using the shower.