Fan coil PI-controller, 2-/4-pipe with analog outputs

The TLC3-FCR-M is a stand-alone electronic fan coil controller with one control loop option and one PI heating and cooling sequence.

The TLC3-FCR-M2 is designed for 2-pipe modulating fan coil systems and features one NTC temperature sensor input, one external passive input for temperature or open contact, three binary outputs (relays) and one analog output (0-10 VDC). 

The TLC3-FCR-M4 is designed for 4-pipe modulating fan coil systems and features one NTC temperature sensor input, three binary outputs (relays) and two analog outputs (0-10 VDC) for heating and cooling.

A detailed parameterization is possible with the use of a simple configuration routine. The TLC3-FCR-M can be configured using the standard operation terminal. No special tools or software is required.


  • Air only systems: constant or variable air volume systems with three stage fans for single or dual duct systems
  • Air/water systems: fan coil units for 2-pipe or 4-pipe systems, radiator control, chilled ceiling
  • Simple individual room control for hotel rooms, meeting rooms, etc.
  • PID-control of up to two modulating valves for heating and cooling


  • Proven PID controls algorithm reduces room temperature fluctuations and energy consumption
  • Low power energy consumption: < 1W per unit
  • Temperature control for 2-pipe and 4-pipe fan coil systems
  • Automatic fan control for three stage fans
  • Cost saving option with economy functionality and set point limitations
  • Control for modulating heating, cooling and fan only operation modes
  • Password protected programmable user and control parameters
    • Set point range limitation
    • Access control for set points, fan speeds and mode change
    • Access control for heat/cool change and time programs
    • Select your display contents
    • Selectable behavior after return from power failure
  • Temperature display in Celsius or Fahrenheit

Deluxe version

  • Clock and time schedule functions with power failure protection
  • Blue backlight for LCD
  • Infrared remote controller option: with special features for boost and delayed switching on or off


 Item name  Item code  Power   supply   Description
 TLC3-FCR-M2-24  40-100131  24 VAC/DC   

 Fan coil controller with
 1 TI int.
 1 ext. input
 3 DO (relay) fan control
 1 AO (0...10 VDC) PID valve control

 TLC3-FCR-M4-24  40-100132 
 TLC3-FCR-M2-D-24  40-100136
 TLC3-FCR-M4-D-24  40-100137
 TLC3-FCR-M2-230  40-100100  230 VAC/DC  Fan coil controller with
 1 TI int.
 3 DO (relay) fan control
 2 AO (0...10 VDC) PID valve control
 TLC3-FCR-M4-230  40-100104
 TLC3-FCR-M2-D-230  40-100101
 TLC3-FCR-M4-D-230  40-100105

Parameter preset

  -W01  40-100xxx-01  Cooling  only    Add -Wx at the end of the item name
  or -x at the end of item  code to order  preconfigured model


OPR1 - Fan Coil Remote Control
Remote control unit for fan coil units of TLC3 and TLR product ranges
Temperature Sensors
Sensing elements or accessories for temperature sensors


Operation Manual

Install Sheet

Application Notes