Single Pressure Controls High Pressure Switch Type SPDT Switch Action Opens on High/Low Pressure Auto Reset 36 in Capillary with Flare Nut Pressure Connection Universal Copper Capillary withFlare Nut NEMA 1 To Protect the Compressor from Excessive System Pressure which Could be Caused by Condenser Fan Failure Application For Refrigerants R 12 R 22 R 134A and R 502