How do I test this 7-inch limit switch for continuity

As the direct OEM replacement for Nordyne 669564

What is the maximum differential pressure for the B223+LF24-S

eliminating the need for field modifications or bracket drilling

It is not recommended for steam service

Copeland RST55C1E-CAA-901 Compressor Els PW 29614 How do I test thisThe Copeland RST55C1E CAA 901 is a high performance reciprocating compressor engineered for commercial refrigeration applications. Operable at 115V 1 Phase, this unit delivers a nominal 5,200 BTU hr capacity optimized for R 404A refrigerant systems. Designed for high evaporation temperature (HET) and medium pressure environments, it features a hermetic design that ensures long term reliability in demanding walk in coolers or reach in units. The POZ