Panel Heater Controller OSA4

Panel Heater Controller OSA4 OJs central control system includes a radio controlled panel heater controller.

New OJ Microline® CS4™ Panel Heater Controller
- for easy-to-control panel heaters

CS4™ Panel Heater Controller features night setback, frost protection and floor sensing thermostat mode in a single unit. The CS4™ Panel Heater Controller makes it easy to control most panel heater types, no matter whether they are to receive night setback signal or to enable frost protection. The CS4™ Panel Heater Controller features both these functions and all you need is to select the one required!

Designed for use with Comfort System 4™ Central Controller.             

  • Wireless control of electric heating panels
  • Maximum safety thanks to built-in 2-pole 16A interrupter
  • Automatic connection to central controller at power-up
  • Energy saver for panel heaters
  • Triple mode: night setback, frost protection and floor sensing thermostat




  • What is the recommended night setback?


    The recommended night setback is max 5°C/41°F



  • Does the adaptive function reset when making a factory reset?


    Yes the adaptive function is reset during a factory reset.



  • What is the maximum length of the sensor cable?


    In general, we recommend a maximum cable length of 50 meters, the length might be shorter. Read the instructions for the precise maximum length.

  • How can I cure the E2 error message?


    "E2" means defective, damaged or disconnected floor sensor. Sensor resistance should be 10 or 12 kOhm at 25°C (77°F). The onstruction or quick guide holds informatiom for the specific thermostats.