Description
Overview
The Copeland 066549 is a heavy-duty Thermal Expansion Valve (TXV) engineered for low-temperature refrigeration applications. Featuring an externally equalized design and a 5-foot capillary tube, this valve delivers precise refrigerant metering and stable superheat control across a wide range of operating conditions. Its compatibility with multiple modern and legacy refrigerants makes it a versatile drop-in solution for new installations and retrofit projects alike.
Key Features
- 5-ton capacity rated for low-temperature charge applications
- Externally equalized design for accurate superheat control in systems with higher pressure drops across the evaporator
- 3/8″ inlet x 1/2″ outlet ODF (sweat) connections for straightforward field installation
- 5-foot capillary tube provides flexible bulb placement during installation
- Angular (ANG) body configuration for versatile mounting in tight spaces
- Compatible with R507, R502, R404A, R448A, and R449A refrigerants — supports both legacy and next-generation low-GWP blends
Refrigerant Compatibility
- R507
- R502
- R404A
- R448A
- R449A
Specifications
- SKU: 066549
- Brand: Copeland
- Model: HFESC 5 SZ 5FT 3/8×1/2 ODF ANG
- Capacity: 5 Ton
- Application: Low Temperature
- Equalization Type: Externally Equalized
- Inlet Connection: 3/8″ ODF Sweat
- Outlet Connection: 1/2″ ODF Sweat
- Capillary Tube Length: 5 Feet
- Body Orientation: Angular (ANG)
Application
Ideal for commercial refrigeration systems including walk-in coolers, reach-in cases, and display cases operating in low-temperature environments. The externally equalized port connects to the evaporator outlet to ensure accurate superheat sensing regardless of evaporator pressure drop, making this TXV especially well-suited for longer or multi-circuit evaporator coils.
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