Description
Copeland TFES 16 ZAA Thermal Expansion Valve — Overview
The Copeland 066149 (Model TFES 16 ZAA 5/8 X 7/8 ODF S/T) is a high-capacity, externally equalized thermal expansion valve engineered for reliable refrigerant metering in R410A systems up to 16 tons. Featuring a straight body design with sweat (ODF) connections and a 5-foot capillary tube, this TXV delivers precise superheat control across a wide operating range — making it a trusted choice for commercial HVAC and refrigeration applications.
Key Features
- Refrigerant: R410A compatible
- Capacity: 16 Ton
- Inlet Connection: 5/8″ ODF Sweat
- Outlet Connection: 7/8″ ODF Sweat
- Body Style: Straight body
- Capillary Tube Length: 5 feet
- Charge Type: Wide range charge for broad operating flexibility
- Equalization: Externally equalized for accurate superheat control in systems with significant pressure drop across the evaporator
- Connection Type: Sweat (Solder) / ODF
- Model Number: TFES 16 ZAA 5/8 X 7/8 ODF S/T
Why External Equalization?
Externally equalized TXVs are ideal for evaporators with multiple circuits or significant refrigerant-side pressure drops. By sensing evaporator outlet pressure independently, the valve maintains consistent superheat regardless of pressure variations — improving system efficiency and protecting the compressor from liquid slugging.
Wide Range Charge Advantage
The wide range charge allows this valve to operate effectively across a broader range of evaporating temperatures compared to standard single-range valves. This versatility makes the Copeland 066149 suitable for a variety of commercial cooling applications where load conditions may vary.
Applications
- Commercial air conditioning systems
- Large split systems and packaged units
- Multi-circuit evaporator coils
- R410A refrigeration systems up to 16 tons
Specifications Summary
- SKU: 066149
- Brand: Copeland
- Model: TFES 16 ZAA 5/8 X 7/8 ODF S/T
- Refrigerant: R410A
- Capacity: 16 Ton
- Inlet x Outlet: 5/8″ x 7/8″ ODF Sweat
- Body Type: Straight
- Capillary Tube: 5 ft
- Charge: Wide Range
- Equalization: External
Reviews
There are no reviews yet.