What is the primary function of the VX100 charge on this Parker TXV

Johnson Controls R-3710-2010 Restrictor

Environmental Durability: The NEMA 3R rated housing prevents internal condensation and protects the SPDT switch assembly in outdoor conditions

it typically indicates scale buildup or internal failure

This specific power assembly is charged and calibrated specifically for R12 refrigerant applications to maintain the correct pressure-temperature relationship

Watts 0226080 Low Water Cut Off R-410A What is the primary functionAs a veteran tech, you know that keeping a steam boiler safe means having a reliable low water cut off you can trust. The Watts 0226080, specifically the SAN89S model, is a heavy duty float and switch assembly designed for rapid field servicing without disturbing your existing pipework. This single switch assembly features a rugged SPST switch (Single Pole Single Throw) configuration, making it the industry standard for 15 psi steam applications where