IO Hvac Controls iO-WWPC Pressure Switch 321042-401 red indicates the valve is

red indicates the valve is closed

Proper installation of this replacement refrigeration probe is critical for protecting Discus compressors from oil breakdown and valve plate failure caused by excessive discharge heat

this assembly is designed for high-demand HVAC zone control applications where reliable shut-off is non-negotiable

Reduced Maintenance: Requires no lubrication or maintenance

IO Hvac Controls iO-WWPC Pressure Switch 321042-401 red indicates the valve isThe iO WWPC is a compact encapsulated pressure control specifically engineered for high performance monitoring in HVACR refrigeration systems. Designed for direct mounting on the liquid line Schrader valve, this manual reset pressure switch provides critical protection against equipment damage caused by loss of refrigerant charge or excessive pressure fluctuations. Built with a snap action diaphragm, the iO HVAC Controls iO WWPC ensures precise, non