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The diaphragm should be in a vertical plane for maximum accuracy
Engineering for normally closed (N/C) operation
ensuring the switch accurately triggers based on the temperature at the bulb
No continuity indicates the switch is stuck open and requires replacement
What are the symptoms of a faulty potential relay
Ranco O12-1550 Pressure Control Els PW 29614 The diaphragm should be inThe Ranco O12 1550 dual pressure control is a precision engineered HVACR safety switch designed for commercial refrigeration systems utilizing non corrosive refrigerants. This Dual Pressure Controller features a low pressure side ranging from 10" WC to 100 PSI and a high pressure manual reset side factory set at 325 PSI. Engineered for reliability, the SPST switch action ensures precise compressor cycling and high end protection against head pressure
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