This seat is built for use in Honeywell V5011A

or can no longer satisfy the millivolt requirements of the thermocouple despite proper gas pressure

it features a heavy-duty foot mount configuration with a 1/2" NPT hub

always verify the supply voltage matches the H-23R technical specifications

Maxitrol TS144 Sensor 30067439-890 This seat is built forThe Maxitrol TS144 is a precision engineered discharge air temperature sensor designed specifically for integration with Selectra modulation systems. This dual range thermistor serves as the primary feedback loop for the gas valve, ensuring optimal burner adjustment based on real time discharge temperatures. Functioning within a 40F to 80F minimum and 80F to 140F maximum range, it provides the critical data required for Selectra air temperature