preventing the heat exporter from catastrophic failure

you should test it with a multimeter

This 2-inch receiver gauge features a robust black plastic case and is designed for stem mount installation

This Double Pole Single Throw (DPST) switch provides redundant circuit protection

What media types is the EPDM seal rated for

Danfoss 034L0097 Regulator Els PW 17895 preventing the heat exporter fromThe Danfoss 034L0097 is a heavy duty KVR 15 condensing pressure regulator designed to maintain stable head pressure in refrigeration and air conditioning systems during low ambient conditions. Built for field reliability, this 5 8" ODF solder valve prevents the condensing pressure from dropping too low, ensuring consistent liquid feed to the expansion valve and maintaining system efficiency. It features a robust hermetically hard soldered construction