Description
Copeland NXT Series Thermal Expansion Valve — Overview
The Copeland 091024 is a high-performance NXT Series Thermal Expansion Valve (TXV) engineered for reliable refrigerant metering in R410A residential and light commercial cooling systems. With a rated capacity of 4 tons and a straight-through body design, this valve delivers precise superheat control and consistent system efficiency across a wide range of operating conditions.
Key Features
- Refrigerant: R410A compatible
- Capacity: 4 Ton
- Inlet connection: 3/8″ ODF (Sweat)
- Outlet connection: 1/2″ ODF (Sweat)
- Capillary tube length: 5 feet
- Adjustable superheat setting for flexible field tuning
- Integrated check valve for reverse-cycle (heat pump) applications
- Straight-through body design for simplified installation and reduced pressure drop
- 1/4″ ODF external equalizer port for accurate superheat sensing in longer evaporator circuits
- NXT Series platform — Copeland’s next-generation TXV line
Technical Specifications
- Model / Part Number: 091024
- OEM Part Reference: NAE 4 ZAA 5FT 3/8×1/2 ODF S/T
- Refrigerant: R410A
- Nominal Capacity: 4 Ton
- Inlet (Liquid Line): 3/8″ ODF Sweat
- Outlet (Suction/Evaporator): 1/2″ ODF Sweat
- External Equalizer: 1/4″ ODF
- Capillary Tube: 5 ft
- Superheat: Adjustable
- Body Style: Straight Through
- Check Valve: Included (integral)
- Series: NXT
Application & Installation Notes
The straight-through body configuration makes the Copeland 091024 an ideal drop-in replacement or new-installation TXV for split-system air conditioners and heat pumps using R410A refrigerant. The adjustable superheat feature allows technicians to fine-tune evaporator performance on-site, while the built-in check valve enables bidirectional flow — making this valve well-suited for heat pump systems. The 1/4″ ODF external equalizer connection ensures accurate superheat control even in evaporator coils with higher pressure drops. The 5-foot capillary tube provides ample routing flexibility during installation.







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