© Intatec Ltd 2022 6
Preset Locking
Position the adjusting knob to the temperature required.
Unscrew the retaining screw.
Remove the knob by pulling away from the valve and reposition on the splined shaft so that the
internal slot locates on the position indicator on the knob frame.
Re fit and tighten the retaining screw.
Maintenance
In service, tests should be carried out regularly to monitor the TMV’s performance, as
deterioration could indicate that the valve and/or the system require maintenance.
If, during these tests, the temperature of the mixed water has changed significantly when
compared with the previous test, the details given in the Installation and Commissioning
sections should be checked and maintenance carried out.
The following should be checked regularly to ensure that the optimum performance levels of the
valve are maintained.
Every 12 months or more often if necessary.
1. Check and clean the system filters.
2. Check that any non-return valves positioned upstream of the TMV are operating correctly
and free from debris.
3. Limescale can be removed from internal components by immersion in a suitable
de-scaling fluid.
4. When the components have been checked and maintained, the mixed water outlet
temperature should be checked using a thermometer following the procedure detailed in
the Commissioning section.
Problem Solving
The following details are supplied for on site queries, should you require any further assistance
our Technical Department can be contacted directly on 01889 272 199.
1 Hot water at cold outlet
i. Operation of the in line check valves is hindered, check the valve is seated correctly.
ii. Check Valves not fitted.
iii. Unbalanced hot/cold supply pressure.
2 Fluctuating mixed water temperature
i. Erratic supply temperatures at the inlets of the valve.
ii. Starvation of the water supplied at the inlets of the valve.
iii. Incorrect commissioning of the valve.
