the unit entering defrost too frequently

the S1-024-19082-017 replaces several legacy sequencer relay models

eliminating the need for external fusing in many control circuit applications

providing ample headroom for most residential condensing units

Johnson Controls A19CAC-1 Temperature Control Els PW 17895 the unit entering defrost tooThe Johnson Controls A19CAC 1 is a standard setting mechanical temperature control designed specifically for automatic changeover in fan coil units and convector systems. Engineered for surface mounting, this SPDT changeover control eliminates the need for manual selector switches by automatically sensing media temperature to toggle between heating and cooling modes. It features a 60 to 90? F setpoint range and a 10? F fixed differential, ensuring