Description
The Rheem-Ruud KT-45-ZGA Replacement Power Head Thermal Expansion Valve is a refrigerant flow control component designed for compatible air conditioning and heat pump units using R-410A cooling. Installed as part of the assembly near the evaporator section, this replacement power head responds to temperature and pressure conditions to regulate metering during cooling operation in HVAC systems. Its sensing mechanism maintains proper superheat levels while supporting efficient evaporation throughout the coil circuit. The component contributes to compressor protection, stable cooling performance, and dependable control during continuous system operation.









