Features: 

FCU SystemBlue 
LCD Display
3-speed and automatic Fan speed control
4-pipes & 2-pipes (optional) 
RS-485,Modbus(optional) 
Key card (optional) 

Technical Data:

Thermostat Supply:230V  50/60Hz

Relay Contact:3(1)A

Room temperature setting range:10°C---30°C

Accuracy:1°C

Thermostat Size：W96-H96-D14MM