Danfoss Randall FJVR Sensor
The FJVR return temperature limiter is a self-acting sensor which will maintain the return temperature in the UFH circuit at a constant level and hence secure a constant floor temperature. This makes it ideal for alot of underfloor heating applications and a unique offering from Danfoss Randall. Setting on the sensor can be limited or locked.
No other product has been as popular as the FJVR Return Temperature Limiter for controlling single Underfloor Heating zone installations (eg: conservatories bathrooms or kitchens). The product has been sold on mainland Europe for more than 3 decades.
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