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this valve simplifies humidifier maintenance by utilizing a standard electrical interface and rugged housing that resists mechanical fatigue
The D506503 is the modern part number for the complete 15B3 cap assembly used in Armstrong's float and thermostatic line
If the blades are pitted
Replacing the worn 1190383 sensor typically restores the necessary electrical path to maintain the heating cycle
Maxitrol TS121A Sensor 320735-701 this valve simplifies humidifier maintenanceEnsure precise combustion control and discharge air stability with the Maxitrol TS121A, a specialized discharge air temperature sensor engineered for the Maxitrol Selectra Series. Designed to operate within an 80 130 degrees F range, this thermistor based sensor provides the critical feedback loop required for electronic gas flame modulation in indirect fired make up air units. When integrated with a compatible mixing tube, the TS121A delivers near