Description
The Copeland 066658 is a precision-engineered Thermal Expansion Valve (TXV) designed for reliable refrigerant metering in R22 air conditioning and refrigeration systems. With a straight body configuration, external equalization, and a 5-foot capillary tube, this valve delivers accurate superheat control across a wide range of operating conditions.
Key Features
- Refrigerant: R22
- Capacity range: 3.5 to 5 Ton
- Inlet connection: 3/8″ sweat (ODF)
- Outlet connection: 1/2″ sweat (ODF)
- Includes Chatleff and Aeroquip adapter fittings for flexible installation
- Straight body design for simplified line-up and installation
- 5-foot capillary tube for remote bulb placement flexibility
- Externally equalized for accurate superheat control in systems with higher pressure drops across the evaporator
Product Details
The externally equalized design of the Copeland 066658 TXV makes it the preferred choice for evaporators with distributor nozzles or multi-circuit coils, where internal equalization would result in inaccurate superheat sensing. The external equalizer line connects downstream of the evaporator outlet, ensuring the valve responds to true evaporator outlet pressure for precise, stable superheat control.
The included Chatleff and Aeroquip adapters add installation versatility, allowing the valve to connect to a variety of service port and line configurations commonly found in commercial and residential HVAC systems. The 5-foot capillary tube gives technicians ample reach to properly position the remote sensing bulb on the suction line for optimal performance.
Applications
- R22 split-system air conditioners and heat pumps
- Commercial refrigeration systems using R22 refrigerant
- Systems with multi-circuit or distributed evaporator coils
- Replacement TXV for 3.5 to 5 ton R22 equipment
Specifications
- SKU: 066658
- Brand: Copeland
- Refrigerant: R22
- Capacity: 3.5–5 Ton
- Inlet Size: 3/8″ Sweat (ODF)
- Outlet Size: 1/2″ Sweat (ODF)
- Body Style: Straight
- Equalization Type: External
- Capillary Tube Length: 5 Feet
- Adapters Included: Chatleff and Aeroquip
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