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This constant differential temperature control features a 42-inch vapor-filled capillary sensing element
While functionally compatible as a temperature switch
the RCC-1503 is not position-sensitive
clean burn
Johnson Controls A350RS-1 Control Els PW 29614 This constant differential temperature controlThe Johnson Controls A350RS 1 is a professional grade electronic temperature reset control designed for precise regulation of HVAC heating systems. As a direct replacement for the A350RT 1, this model significantly simplifies installation by including the necessary A99BB 300 supply sensor and A99BC 25 master sensor in the package. Operating on a 24Vac power supply, the unit features a high performance SPST normally open relay and facilitates an