Data Sheet FEV-Z Climate Sensors for AB-QM Automatic Flow Limiter Product The FEV-Z climate sensor is a proportional controller which opens or closes an AB-QM automatic flow limiter valve as a function of the temperature deviation. The FEV-Z is to be applied in climate systems with i.e. ceiling-, floor- or radiator heating. The FEV-Z climate 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. Ordering and Specifications Application Type Heating: Floor-, ceiling-, or radiator heating 1. FEV-Z 2. AB-QM 3. Heating circuit Design The FEV-Z sensor is equipped with a direct acting FEV-Z has a valve adapter especially designed for valve controller that opens the valve when the use with Danfoss AB-QM automatic flow limiters. temperature drops below the set temperature. If the set temperature is equal to or higher than the room temperature the valve is open. Danfoss Heating Solutions

Data Sheet FEV-Z Climate Sensors for AB-QM Automatic Flow Limiter 1. Valve adapter (heating) 2. Actuator 3. Adjustment bellows Temperature Setting 4. Capillary reel 5. Remote temperature adjuster 6. Bellows The FEV-Z sensor has been developed for heating regulation of water-based systems. The FEV-Z sensor is based on the self-acting principle. The liquid-filled sensors control the valves via capillaries and adapters. The scale shows the approximate set-point offset from the comfort temperature which is approximately 22 °C at Xp = 0 K. Control area of FEK sensor with RA-C valve Temperature Control...

Data Sheet FEV-Z Climate Sensors for AB-QM Automatic Flow Limiter Limiting the Set Temperature of FEV-Z Sensors The set temperature of the remote temperature adjuster depends on the sensor type and the valves, which are used with the sensors. It is easy to limit or lock the set temperature by means of the built-in locking/limiting device. Minimum limitation of temperature area Maximum limitation of temperature area Danfoss Heating Solutions

Data Sheet FEV-Z Climate Sensors for AB-QM Automatic Flow Limiter Danfoss A/S Heating Solutions Haarupvaenget 11 8600 Silkeborg Denmark Phone:+45 7488 8000 Fax: +45 7488 8100 Email: [email protected] www.heating.danfoss.com 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...