Wall-mounted Controller and Sensor

The TRI2 is a programmable controller and sensor with communication capabilities. Each control loop may use 2 PI sequences and 2 binary stages.

Flexible application configuration is made with a parameter-setting routine using the standard operation terminal.

Complete parameter sets may be copied by use of an accessory called AEC-PM2 or exchanged with a PC using an RS485-USB converter, the EasySet program and the configuration adapter called AEC-TRI.


  • Ventilation control
  • Tempearture control
  • Zone control
  • Air humidifier and dehumidifier


  • Two universally configurable control loops:
  • Functions for dehumidifying, set point shift and cascade control
  • Multiple auxiliary functions: heat-cool auto changeover, automatic enable, set point compensation
  • Free heating and cooling with economizer function based on enthalpy or temperature
  • Differential, averaging, min and max functions, enthalpy and dew point calculations
  • Transmitter function for inputs and set points
  • 2 passive inputs (NTC, open contact), 1 analog input (VDC) and 2 analog outputs (VDC)
  • 2 relays with each a normally open contact to switch line voltage
  • 8 freely assigned alarm conditions, selectable state of outputs on alarm condition
  • Power Cap protected real-time clock with 48hr power backup
  • 7-day programmable schedules, with options including change of set points and direct position of manual outputs
  • Password protected programmable user and control parameters


 Item name

 Item code


 TRI2-FA-T-221.202C-MOD  40-600442

 Temperature sensor and with Modbus RTU or

 ASCII communication

 wall mounted

 controller with


 2 control loops
 3 UI
 2 relays
 2 AO  




 Temperature- and humidity sensor



 Temperature- and humidity sensor with Modbus

 RTU or ASCII communication



 Temperature- and humidity sensor with BACnet®




Temperature Sensors
Sensing elements or accessories for temperature sensors
AMM-AD-W Frame
Frame and mounting plate for square connection box
AEC-PM2 - Memory
External memory for parameter sets for X2-series


Operation Manual

Install Sheet

Application Notes