For the most accurate thermal transfer and response time

The internal automatic heat-cool changeover ensures seamless temperature regulation between 45°F and 99°F

this unit features 17-4 PH stainless steel wetted materials

a different part number from the McQuay catalog must be utilized to prevent phase imbalance and winding failure

Featuring a Size 83 element and a Z charge specifically engineered for R-22 systems

Carrier EF19ZG227 Coil 320074-702 For the most accurate thermalThe Carrier EF19ZG227 Reversing Valve Coil is a critical OEM replacement part designed for heat pump systems requiring precise refrigerant flow control. Operating at 208 230V, this solenoid coil provides the necessary electromagnetic force to actuate the reversing valve, allowing your system to switch seamlessly between heating and cooling modes. Built to meet rigorous factory specifications, the EF19ZG227 ensures high efficiency performance and long