Emerson Alco 091063 Valve

Professional contractors understand that maintaining system efficiency in R410A air conditioning and heat pump systems requires precise refrigerant control. The Emerson Alco 091063, part of the high-performance NXT Series Thermal Expansion Valve, is engineered specifically for these demands. This NAE 5 ZAA model features a 5-ton nominal capacity and a balanced port construction that effectively compensates for varying head pressures caused by fluctuating ambients, gas defrost, or varying evaporator loads. Designed with a straight-through body, it incorporates 3/8" x 1/2" ODF sweat connections and an external equalizer (1/4" ODF) to ensure accurate superheat control across the entire R410A operating range of -20°F to +50°F.

The Alco 091063 TXV is a technician’s choice for durability, featuring a stainless steel power element and capillary tube to prevent corrosion and premature element failure. Its internal check valve enables bi-directional flow, making it an ideal 5-ton heat pump expansion valve for close-coupled applications. With its adjustable superheat setting and 5-foot capillary tube, this thermostatic expansion valve provides the flexibility needed for precise field tuning to maximize SEER ratings and equipment longevity.

• Precise Superheat Control: Optimized for high-efficiency R410A systems to prevent liquid slugging and evaporator starve.
• Bi-directional Capability: Integrated check valve allows a single valve to manage superheat in both heating and cooling modes.
• Balanced Port Design: Maintains stable performance despite wide changes in operating pressures.
• Rugged Construction: Hermetic, leak-free joints and laser-etched markings for permanent technical identification.
• Ease of Installation: Compact body design fits into tight evaporator cabinets and air handlers.

Is the Emerson 091063 compatible with heat pump systems?
Yes. The NAE 5 ZAA includes an internal check valve, making it specifically designed for bi-directional flow in heat pump applications.

What is the maximum working pressure for this TXV?
The NXT series is rated for a maximum working pressure of 700 psig, suitable for high-pressure R410A environments.

Can I adjust the superheat on this model?
Yes, this model features adjustable superheat, allowing technicians to fine-tune the system based on specific evaporator conditions and target subcooling.

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.