The York S1-031-01276-000 Liquid Temp Sensor is a precision-engineered HVAC replacement part designed for integration with high-performance York heat pumps and air handling systems

ensuring the unit remains within safe operational parameters

Always check your controller's model number before installation

and fan-only modes

ensuring compatibility with most DDC controllers and PLCs

Maxitrol TS121 Sensor Els PW 17895 The York S1-031-01276-000 Liquid TempFor veteran technicians servicing indirect fired make up air units, the Maxitrol TS121 discharge air temperature sensor is the critical component for maintaining a stable 55 90F terminal temperature range. Specifically engineered for integration with Selectra Series 20, 21, 30, and 31 modulation systems, this thermistor based sensor delivers a resistance of 4,500 ohms at 77F, providing the Maxitrol amplifier with the sub second response times required