The control group keeps the floor heating water temperature at the set value by mixing the high temperature water coming from the boiler with the floor heating water. A thermostatic valve with a remote sensor measures the room temperature and, depending on this value, adds high temperature water to the floor heating circuit in the amount required to compensate for the heat output that the floor heating gives to the environment.
| Size, G | 1” |
| A × B × C × D mm | 210 × 129 × 288 × 65 |
| Maximum working pressure, bar | 6 |
| Maximum differential pressure, bar | 1 |
| Maximum operating temperature on the primary circuit , ℃ | 80 |
| Maximum secondary working temperature, ℃ | 70 |
| Maximum thermal output at ∆t 10 ℃ (primary temperature ≥ 70 ℃), kW | 20 |
| Body material | Brass CW617N nickel plated |