1Working Principle: Control the working state of the fan coil unit and electric valve, electric ball valve or air valve at the end of the air conditioning system by comparing the set temperature of the ambient temperature to achieve the purpose of adjusting the ambient temperature, comfort and energy conservation. 2Multiple Applications: The fan coil unit temperature controller is divided into two pipes and four pipes, which are used for temperature control of water system or air system. 3Microcomputer Control: The temperature controller adopts microcomputer control technology, which is easy to use. The heating and cooling modes can be selected by pressing the key, and the required indoor temperature can be set. 4Easy to Read: Large LCD display, elegant design, can clearly display data, easy to read data, easy to use, convenient and practical. 5High Reliability: This air conditioner fan temperature controller adopts high reliability chip, with strong anti interference ability and high reliability.