Description
The Copeland 066664 is a precision-engineered Thermal Expansion Valve (TXV) designed for reliable refrigerant metering in R410A systems rated at 5-ton capacity. Built with an externally equalized design, this valve accurately responds to system load variations by referencing evaporator outlet pressure directly — making it an ideal choice for longer evaporator coils and applications where pressure drop across the coil is a concern.
Key Features
- Refrigerant: R410A compatible
- Capacity: 5 Ton
- Connection Type: 3/8″ inlet x 1/2″ outlet, sweat (solder) connections
- Body Style: Straight body configuration
- Capillary Tube Length: 5 feet for flexible bulb placement
- Equalization: Externally equalized for accurate superheat control in systems with higher evaporator pressure drop
- Adapters Included: Chatleff and Aeroquip adapters for versatile field installation
Technical Specifications
- SKU: 066664
- Brand: Copeland
- Refrigerant Type: R410A
- System Capacity: 5 Ton
- Inlet Connection: 3/8″ sweat
- Outlet Connection: 1/2″ sweat
- Capillary Tube: 5 feet
- Body Style: Straight
- Equalization: External
- Included Adapters: Chatleff and Aeroquip
Application & Benefits
The externally equalized design of the Copeland 066664 TXV ensures consistent superheat control even when evaporator pressure drop is significant — a critical advantage in multi-circuit or longer evaporator coil applications. The included Chatleff and Aeroquip adapters provide installation flexibility, allowing technicians to connect to a variety of system configurations without additional fittings. The 5-foot capillary tube gives ample reach for proper thermal bulb placement on the suction line, contributing to accurate sensing and stable system operation.
Why Choose Copeland
Copeland is a trusted name in refrigeration and HVAC components, known for delivering high-quality, durable products that meet the demands of professional HVAC technicians and contractors. The 066664 TXV upholds that tradition with robust construction and precise refrigerant flow control engineered for today’s R410A systems.
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