Data sheet FEV sensorsControl of heating circuitProducts FEV-IF with integrated sensor FEV-FF with remote sensor The FEV is a proportional controller which opens or closes the heating valve as a function of the temperature deviation. FEV-IF To be applied in systems with i.e. ceiling-, floor- or radiator heating. The temperature-adjuster/sensor should be mounted on an internal wall at a height of approximately 1.5 meter in such a way that the room temperature can be measured accurately. FEV-FF To be applied in systems with i.e. fancoils or induction units. By placing the remote sensor in the room-air inlet of the unit a smaller response time to temperature changes can be achieved which will result in a more accurate temperature control. Ordering and specifications Application Heating: Floor-, ceiling-, or radiator heating

Data sheet Remote temperature adjuster Remote sensor (FEV-FF) Valve adapter (heating) FEV sensors can be applied in combination with RA-N RA-G or RA-C valves. The FEV sensors are equipped with a direct acting valve-controller that opens the valve when the temperature drops below the set temperature. If the set temperature is equal to or higher than the room temperature the valve is closed. Temperature setting Comfort temperature ~ 22°C at Xp = 0 K(°C) The FEV sensors have been developed for heating via water-based systems. The FEV sensors are based on the self-acting principle. The liquid-filled...

Data sheet Temperature control through heating with FEV Control area of FEV sensor with RA-N/G and RA-C valve Xp = 0 K When the knob has been set in the middle position the valve will open at temperatures lower than 22°C. A setting in the red zone means the valve will open at a higher room temperature. A setting in the blue zone means the room temperature will be kept at a value lower then 22 °C. Heating with FEV thermostat Waterflow, heating Example Lowering comfort temperature by 4 °C Water flow, heating The comfort temperature is lowered by 4°C by turning the knob to a setting in the blue...

Data sheet FEV sensors Design 1. Heating adapter 5. Remote temperature adjuster 7. Remote temperature sensor (FEV-FF) FEV-FF Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss...