Revision 5 - 58 - November 2017
Rada® 222 Thermostatic Mixing Valve
Set Maximum Water Temperature
• Check that an adequate supply of hot water is available to the valve.
• Temperatures should always be checked using a thermometer of recorded accuracy.
1. Using 3mm hex wrench, remove the Center Cap Screw.
2. Remove the Center Cap and Temperature Knob.
3. Remove the Temperature Hub from inside the Temperature Knob.
4. Turn on the Tub Fill Valve or Reservoir Fill Valve (if applicable).
5. With the water running, rotate the spindle clockwise to decrease temperature or
counter-clockwise to increase temperature.
You may find it easier to rotate the spindle if you place the Temperature
Hub back on the spindle and use it as a knob.
6. Once the desired maximum water temperature is achieved, re-fit the Temperature
Hub onto spindle so the nub on the bottom of the Temperature Hub seats against the
stop on the cartridge face. (See Illustration) Be careful not to turn the spindle,
therefore changing your temperature setting.
7. Manually check water temperature to be sure it has not changed.
8. Install the Temperature Knob so the indication 9 is in the 12 O’clock position.
9. Install the Center Cap and screw.
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