Variable refrigerant flow (VRF) HMI, heating thermostat, and fresh air controller

  • Slim (8.6 mm thickness) touch button design
  • AC 230 V operating voltage, large LCD backlit display
  • Operating modes: ON, ECO and OFF
  • Selectable HVAC application modes: VRF only, UFH only and VRF + UFH
  • Selectable Fresh Air Controller mode: FAU On or Off
  • Room temperature or temperature setpoint display
  • Room temperature display via built-in sensor or VRF indoor unit
  • Temperature setpoint adjustment
  • Minimum and maximum setpoint limitation
  • UFH: SPST relay for valve actuator
  • Client/Server VRF mode selection: AUTO, COOL, HEAT, FAN & Dehumidification
  • Fan mode:
    • VRF: Auto and manual
    • FAU: Manual only
  • VRF fan speed adjustment up to 7 speeds
  • FAU fan type selection: 1-speed, 2-speed, 3-speed or ECM
  • FAU: Selectable internal and external air circulations
  • Simple delay-off timer up to 23 hours
  • UFH: External sensor input for floor temperature limitation
  • Internal sensor calibration
  • Keylock function
  • Returning to previous operating mode, ON (Normal mode) or OFF for power down
  • Adjustable commissioning and control parameters
  • RS485 Modbus RTU server mode Modbus interface for VRF gateway and system integration
  • Mounting on recessed square 86 mm conduit box with 60.3 mm fixing centers and min. 60 mm depth