Description
Carrier HK02ZA418 448/327# High-Pressure Switch
The Carrier HK02ZA418 is a genuine OEM high-pressure switch engineered to protect refrigerant circuits from dangerous overpressure conditions. Designed as a direct replacement for compatible Carrier systems, this pressure switch monitors high-side refrigerant pressure and interrupts system operation when unsafe levels are detected, helping to prevent compressor and system damage.
Key Features
- OEM Carrier replacement pressure switch — SKU HK02ZA418
- Cut-out pressure: 448 PSI — opens circuit to shut down system at high-pressure threshold
- Cut-in pressure: 327 PSI — closes circuit to restore normal operation once pressure drops
- Designed for high-side refrigerant pressure monitoring
- Provides critical overpressure protection for compressors and refrigerant circuits
- Direct OEM fit for compatible Carrier equipment — no modification required
- Helps maintain system reliability and longevity
Application
The HK02ZA418 pressure switch is intended for use in Carrier HVAC and refrigeration equipment requiring high-side pressure protection. Always verify compatibility with your specific Carrier model before installation. Consult equipment documentation or a qualified HVAC technician to confirm proper application.
Why Choose OEM Carrier Parts?
Genuine Carrier OEM components are manufactured to exact factory specifications, ensuring proper fit, reliable performance, and maintained equipment warranties. Substituting non-OEM parts can compromise system safety and efficiency.







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