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Engineered to replace obsolete HK61GA001 and HK61GA003 Texas Instruments boards
Most OEM assemblies include the integration hub with a set screw already tapped
this model is specifically valved and charged for R-404A performance
Multi-Refrigerant Support: Approved for use with R-22
Specifically utilized in 750CFM configurations
Carrier HK02ZB421 Pressure Switch 30067439-890 Engineered to replace obsolete HK61GA001The 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
