Carrier HK02ZB421 Pressure Switch 320819-301 With a powerful 0

With a powerful 0

ensuring long-term operational stability without the risk of intermittent signal loss or moisture ingress

compatibility depends on your specific burner configuration and bracket requirements

This industrial-grade nut is specifically engineered to replace the 104484A and M20-series packing assemblies

Key Benefits Specifically designed for Carlyle 06D series compressors with a precise 7/8" ODS sweat fit

Carrier HK02ZB421 Pressure Switch 320819-301 With a powerful 0The Carrier HK02ZB421 Pressure Switch is a critical safety component designed for R 410A refrigerant residential and commercial air conditioning systems. This heavy duty high pressure switch features a normally closed SPST (Single Pole Single Throw) configuration and is factory calibrated to open at 610 PSI to prevent compressor damage during over pressurization. Once system pressure stabilizes, the switch initiates a manual reset or automatic close