The battery-powered RFox drive R-HC-0101F

For continuous control of radiator valves, a battery-powered R-HC-0101F drive can be used. The drive is powered by 1 or 2 pcs of primary AA battery Li-SOCl₂ 3.6 V, 2.4 Ah (the ER14505 type).

A standard usage of this drive is for valves with M30x1.5 mm screwing (Heimeier and others).

The drive is fitted with a very quiet and economical drive and an internal temperature sensor. The slew rate of the motor (0÷100 %) is about 42 s. There is also a version with the ability to connect an outdoor temperature sensor or the window contact R-HC-0201F. The outdoor sensor is connected to a cable about 0.5 m long, which is brought out from the lower part of the drive.

The drive is mounted onto the valve in arbitrary position. However, is not recommended to mount the drive to the valve from the bottom, as the water leaking from the valve can cause damage to the drive. An internal temperature sensor provides frost protection (when the temperature falls below 5 °C, then, regardless of the communication, the drive opens the valve). The drive also provides an automatic turning of the valve (after 30 days of standstill).

Fig. 1. The mechanical configuration of the drive for the R-HC-0101F radiator valves