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INSTALLATION (Fig. B)
• Drill a hole Ø 34mm on the washbasin mounting surface (2) and mount the mixer. If necessary, temporarily
remove the stopcocks (5) to make the fitting easier.
• Tighten the 2 screws (3-a) onto the flange (3). Ensure a suitable waterproof seal between the mixer and
the work plan appropriate to the type of installation.
• Connect the water supply to the mixer with the M1/2" stopcocks (5), making sure the hot
and cold water supplies are connected to the correct sides.
• Take care not to pinch the flexible hoses (6).
• To ensure the mixer functions correctly, balance the hot and cold water pressure (ΔP<1 bar).
Recommended pressure: 3 bar. Maximum pressure: 5 bar.
• If the hot water temperature is not correct when the control lever is in position (1-c), re-calibrate the temperature.
CALIBRATING THE TEMPERATURE (Fig. C & D)
Our mixers are pre-set at the factory at 3 bar pressure, with hot and cold water supply pressures
balanced, and hot water temperature at 65°C +/- 5°C and cold water temperature at 15°C +/-5°C.
If the conditions of use are different, the mixed water temperature may differ from the set temperature
(41°C). The control lever should be repositioned to the corresponding temperature (Fig. C):
• Turn the control lever (1) to the maximum hot water position (1-c),
• Measure the temperature using a digital thermometer (7).
• Unscrew the grub screw (8) without fully removing it, using a 2.5mm Allen key, and remove the control lever.
• Using the 2.5mm Allen key, turn the screw on the spindle (9) clockwise or anti-clockwise to adjust
the mixed water temperature (maximum temperature 41°C).
• Replace the control lever (Fig. D) in position (1-c) tighten the grub screw (8) (Fig. C) then turn
the control lever to position (1-a) to check that the flow stops.
To complete commissioning, a cold water failure should be carried out: within one second after isolating
the cold water supply, flow from the valve should stop.
After commissioning, record the following temperatures with a thermometer:
a) Hot and cold water supplies.
b) Maximum mixed water.
c) Mixed water after isolating cold water supply noting particularly the maximum and final temperature.
d) Check equipment, thermometer, etc, used for measurements.
THERMAL SHOCK (Fig. C & D)
• It is possible to activate a thermal shock at the temperature of the hot water in the system
- Turn the control lever (1) to the maximum hot water position (1-c),
- Loosen the grub screw (8) without fully removing it, using a 2.5mm Allen key, and remove
the control lever.
- Using the 2.5mm Allen key, turn the screw on the spindle (9) as far as possible to achieve
the temperature of the hot water in the system (approx. 3 turns).
• Once the thermal shock is complete do not forget to re-commission the mixer.
IN‐SERVICE TESTING
To comply with the National Health Service Model Engineering Specification DO8 and BuildCert TMV3
certification we recommend the following.
The purpose of in-service tests is to regularly monitor and record the performance of the thermostatic
mixing valve.
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