Description
The Copeland Comfort Control (Alco) 60857 4-Ton Thermal Expansion Valve R22 VLF is designed to regulate refrigerant flow into the evaporator based on superheat conditions. It is used to meter liquid refrigerant in air conditioning and refrigeration systems, maintaining accurate evaporator flow during variable operating pressures and temperature changes. It operates as a metering tool within the refrigeration cycle, allowing for accurate refrigerant expansion before entry into the coil in HVAC systems. It continuously monitors outlet temperature to adjust flow rate dynamically, maintaining optimal coil usage stable suction pressure, and improved compressor protection during fluctuating cooling loads.









