Air Conditioner Controller With Free Cooling, AC Controllers With Free Cooling For Damper Operation, Manufacturer, Supplier, Exporter, Proton Power Control, Pune, Maharashtra, India

AC Controller with Freecooling (Multipurpose) Model: UF_FC1

MICROCONTROLLERS with their inherent advantages are being increasingly used in the industry. With growing shortage and escalating cost of Electrical Energy, accurate monitoring of Air Conditioner's parameters has become necessary. FREECOOLING MICROCONTROLLER is most useful for controlling A/Cs. This instrument is able to maintain Room Temperature with an accuracy of 0.1 Degree Celsius by automatic measurement of Room temperature and accordingly controlling AC ON/OFF. It also protects Costly Air conditioner from ‘Unhealthy conditions’ such as over Voltage/under Voltage etc. by automatically shutting down supply to it.
Damper Free cooling:
If Outdoor temperature is below 25° (Considering the free cooling set point as 25°C), then Free cooling mode starts, Damper will open & comp will be OFF (If the Ambient humidity is less than FreeEmrg High Hum set point). Free cooling ends and Damper will be close when Outdoor temp is above Free Cooling set point + 2°C. Damper will Open / Close on Room temperature demand’s.

  • Aux. Supply: 48V DC
  • Input Supply Voltage: 230 VAC ± 15 %
  • Outputs:
    Fan : 0-10V DC
    Compressor : 230 VAC ± 15
    Damper : 48V DC
  • Front Panel:
    1) 16 char. 2 lines LCD display with backlit.
    2) 5 Key keypad for programming.
  • Sensing:
    1) Inbuilt Voltage & current sensing in Power
    2) Temperature Sensing by precise temp. sensor.
    3) Tacho input from Fan
    4) High Pressure/Low Pressure sensing for compressor
  • Terminals :
    1) Compressor Output
    2) Damper Output.
    3) Temperature sensor.
    4) AC alarm relay o/p.
    5) Room High alarm relay o/p.
    6) Fan Supply Output (0-10V DC)
  • Network Connectivity:
    1) RS-485 Modbus RTU
    2) LAN
  • Alarms/ Protections:
    1) OV/UV protection set point user Selectable.
    2) OL/UL protection set point user Selectable.
    3) High/low temperature alarm set point user selectable.
  • Dimensions: 150 mm x 200 mm x 80(H x W x D)


  • Fully programmable.
  • Complete protection for AC from unhealthy condition.
  • 3. All set points programmable from keypad.
  • 4. Password protection for controller
  • 16 char. 2 lines LCD display with back lit on controller front panel.
  • Simple 5 Key keypad for onsite programming.
  • . Two Alarm contacts i.e. primary and secondary alarms.
  • . Automatic display of CP parameters one by one in Run Mode.
  • . CP Status & Damper Open/Close Status on LCD Display.
  • . Room temperature & Out Door temperature and ambient humidity sensing by precise sensors.
  • Separate outputs for fan, compressor & Damper.
  • Direct display of Line voltage & actual current drawn by compressor.
  • Direct display of actual room temperature, Out Door temperature & Ambient Humidity.
  • Automatic Timer mode operation if Room sensor fails.
  • HP, LP Sensing.
  • HP Fault manual reset & all other Faults Auto reset.
  • Automatic Compressor lock after maximum allowable 3 UL, OL and LP faults .
  • Non Volatile Fault log History. (Last 10 faults).
  • Compressor, Free cooling, Emergency cooling and blower hour run 5 digit displays.
  • . Offset Feature for onsite calibration.
  • Sensor fail mode On-time & Off-Time.
  • Trip Delay for Under voltage & Unbalance is stable.
  • Fan feedback sensing i.e. determines the healthy condition of the fan.

  • N/A

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