Copeland Comfort Control (Alco) 047280 Expansion Valve

The Copeland Comfort Control (Alco) 047280 is a high-precision Automatic Thermal Expansion Valve (TXV) designed for technical professionals managing light commercial refrigeration and HVAC systems. This ACPE 1 SAE EE model features a 1/4" x 3/8" SAE flare connection with a straight body configuration, facilitating straightforward integration into existing liquid lines. Engineered with a 0.05" port diameter, the valve provides exceptional control over refrigerant flow, ensuring the evaporator remains properly fed under fluctuating thermal loads. The externally equalized design is critical for systems with significant pressure drops through the evaporator, maintaining stable superheat where internally equalized valves might fail. With a fully adjustable superheat range from 0 to 80 psig and a 40 psig factory setting, technicians can fine-tune this Alco expansion valve to meet specific system requirements, protecting the compressor from liquid slugging while maximizing heat transfer efficiency.

Key Benefits for Contractors

• Enhanced System Stability: The external equalizer compensates for pressure drops, preventing hunting and ensuring consistent evaporator temperatures.
• Field Adjustability: A wide 0-80 psig adjustment range allows for precise superheat tuning across diverse applications.
• Durable Construction: The SAE flare connection ensures leak-resistant seating and simplified replacement without the need for brazing in tight spaces.
• Optimized Flow Control: The 0.05" port is specifically sized for low-tonnage precision metering, improving overall SEER and EER ratings.

Common Questions

Is the Alco 047280 compatible with modern refrigerants?
Yes, while typically used in older configurations, this ACPE series valve is designed for compatibility with common refrigerants, provided the pressure ratings and oil types align with the 0.05" orifice capacity.

When should I choose an externally equalized TXV over an internal one?
Technicians should utilize the externally equalized 047280 whenever the evaporator pressure drop exceeds 2 psi in air conditioning or 1 psi in refrigeration to ensure accurate superheat sensing at the evaporator outlet.

What is the benefit of the straight body design?
The straight body configuration allows for inline installation, making it an ideal choice for compact evaporator coils or reach-in refrigeration units where space for 90-degree elbows is limited.

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.