Carrier EA660004 Thermal Expansion Valve Valve

The Carrier EA660004 is a thermal expansion valve (TXV) found in various HVAC systems, including air conditioners and refrigeration units. It plays a critical role in regulating refrigerant flow by responding to temperature changes. The TXV uses a bi-metal spring that expands or contracts based on temperature fluctuations. When the temperature rises, the spring expands, opening the valve and allowing more refrigerant to flow. Conversely, a drop in temperature contracts the spring, restricting refrigerant flow. This mechanism ensures consistent system temperatures and optimizes cooling efficiency, leading to better comfort and potentially lower energy bills.