Copeland Comfort Control (Alco) 091050 Expansion Valve

Maintain peak performance in high-capacity air conditioning and heat pump systems with the Copeland Comfort Control (Alco) 091050 Thermal Expansion Valve. As a veteran-grade NXT Series TXV, this 10-ton expansion valve is purpose-built for R410A refrigerant applications, providing the precision metering required for large residential and light commercial evaporators. The straight-through body design and 5/8" x 7/8" ODF sweat connections ensure a streamlined fit during field installations, while the 1/4" ODF external equalizer provides accurate feedback for stable superheat control under varying load conditions.

Engineering-grade features include a 5' capillary tube for flexible bulb placement and an adjustable superheat mechanism, allowing technicians to fine-tune system balance for maximum efficiency. Designed to replace obsolete or failing metering devices, the NBE 10 ZAA model (Part 091050) offers a robust build that withstands high-side pressures up to 700 psig. For contractors looking to eliminate R410A TXV hunting and protect compressors from liquid slugging, this OEM-spec valve delivers consistent, reliable flow regulation.

Key Benefits for Technicians

• Optimized for R410A: Specifically calibrated for high-pressure systems to ensure reliable performance across the 10-ton capacity range.
• NXT Series Stability: Features a balanced port-style design that maintains consistent superheat even during significant fluctuations in head pressure.
• Sweat Connection Design: The 5/8" inlet and 7/8" outlet ODF connections allow for a standard brazing process without the need for additional adapters.
• Precision Field Tuning: The adjustable superheat feature enables exact setting to system specifications, improving overall EER and SEER ratings.
• Durable Construction: High-quality brass body and stainless steel power element provide long-term resistance to corrosion and vibration.

Common Questions

Is this TXV compatible with heat pump systems?
Yes, the NXT Series is designed for both air conditioning and heat pump applications where a bi-flow or internal check valve function is not integrated. Always verify if your specific unit requires an internal check valve before installation.

Does this valve come with the sensing bulb strap?
Most Copeland Alco 091050 packages include the necessary hardware for secure bulb mounting to the suction line; however, it is standard practice to use high-quality copper straps for maximum thermal conductivity.

What happens if the external equalizer is not connected?
This valve is externally equalized and requires the 1/4" equalizer line to be connected to the suction line after the sensing bulb. Operating without this connection will cause inaccurate metering and potential evaporator freezing.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.