The Copeland ZF18K4E-TFD-961 is a high-efficiency scroll compressor engineered specifically for low-temperature refrigeration applications

The "Speed Up" pins are for diagnostic testing

the A-F579213 is designed for use with standard HFC and HFO blends

Key Benefits Precision Threading: High-tolerance NPT threads provide a vacuum-tight seal for use in sensitive refrigerant piping

The SPDT switch action (Single Pole Double Throw) provides versatile wiring options

Daikin-McQuay L129150068 Transducer Freon The Copeland ZF18K4E-TFD-961 is aThe Daikin McQuay L129150068 is a high precision low pressure suction transducer specifically engineered for continuous monitoring in commercial and industrial HVACR systems. As a genuine OEM pressure sensor, this unit converts suction side refrigerant pressure into a standardized 4 20mA output signal, ensuring seamless integration with building automation systems and chillers. Designed for rugged applications, the L129150068 provides the accuracy