Description
The Mitsubishi Electric U41002200 Thermistor TH21 is a temperature sensing component used to monitor air or coil temperature. It operates as an NTC thermistor, changing its electrical resistance based on temperature variations to provide feedback signals to the control board for system regulation. Within HVAC systems, it is positioned near indoor coils or air passage sections to detect temperature changes and transmit accurate readings to the control circuit. It is commonly used in ductless split units and similar residential or light commercial equipment to support temperature monitoring during heating and cooling cycles.
