Technical specifications
The unit
- Name
- Automatic Radiator Controller (ARC)
- Weight
- 1.1 lb (500 g)
- Display
- 15 × 7 LED dot matrix
- Controls
- A knob on the unit, turned the way the manual valve was turned
The valve
- Valve compatibility
- 30 mm and 40 mm manual valve bodies. Direct replacement, self-calibrating to the valve it is fitted to.
- Valve stroke
- 0.12 in (3 mm)
- Actuating force
- 30 lb (13.6 kg), holding against more than 15 psi
- Radiator valve temperature
- 150 to 250 °F (70 to 120 °C)
Power
- Battery
- 3600 mAh rechargeable lithium-ion
- Charge life
- Six months or more, a heating season on one charge6
- Charging
- USB-C
Environment
- Ambient operating temperature
- −5 to 160 °F (−20 to 70 °C)
Control and network
- Temperature control
- Manual (0–6) and PID
- Radio
- 915 MHz ISM band
- Range
- Up to 1,000 ft through plaster, brick and steel6
- Gateway
- One per building, on Ethernet or LTE
- Standalone operation
- Runs local and independent with no internet connection. The gateway is for remote access and reporting.
- Building systems
- BACnet/IP for the building’s own controls2
Compliance
- Certification
- Patent pending. FCC and UL certification in progress.2