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including the legacy Robertshaw 802 series
making it a standard choice for commercial refrigeration compressor racks and split system condensers requiring precise refrigerant flow control
Direct Interchangeability: Serves as the official 20197314 replacement for the legacy HAPS27 model
contractors ensure reliable operation of proportional control actuators in demanding air handling environments where shaft accessibility is limited
York S1-55000-328 Detector Head Els PW 17895 including the legacy Robertshaw 802The York S1 55000 328 is a high sensitivity photoelectric duct detector head engineered for rapid smoke detection within environmental air ducts. This OEM York replacement part serves as the direct successor to the legacy S1 55000 225 ionization head, facilitating a critical transition from ionization to photoelectric smoke sensing technology. By utilizing an infrared LED and photo diode arrangement, the S1 55000 328 excels at detecting slow burning,