HTW-WF11-FC-KEB series BACnet fan coil thermostat is designed to control 2/4 pipe Fan Coil Unit system, with outputs of 3 fan speed and 1 digital on/off cooling valve and/or 1 digital on/off heating valve, with remote setback (keycard) input or external sensor input and BACnet communication. It is widely used in these environments like Homes, Residential buildi ngs, Schools, Hotels, Hospitals, Offices and etc. to main an ideal room temperature purpose.