Copeland Comfort Control (Alco) 078117 Cage Assembly

The Copeland Comfort Control (Alco) 078117 Cage Assembly, also identified by the industry interchange X9117B7B, is a high-capacity component engineered for the Alco T-Series take-apart expansion valves. Designed for heavy-duty commercial refrigeration and large-scale HVAC systems, this double-ported cage assembly provides precise refrigerant metering and stable superheat control even under fluctuating load conditions. The modular "take-apart" design of the TER valve type allows for rapid field servicing or capacity adjustments without the need to de-braze line connections, significantly reducing downtime for technicians.

This genuine OEM expansion valve cage is optimized for multi-refrigerant versatility. It is rated for a nominal capacity of 15 tons with R-12, 19 tons with R-134a, and 26 tons with R-22 or R-407C. For low-temperature applications, it maintains 16 tons for R-404A, R-502, and R-507. Constructed to handle a wide range of evaporator temperatures, the Alco 078117 ensures consistent performance in chillers, rooftops, and industrial cooling processes. Using its balanced port design, it effectively compensates for varying head pressures, preventing hunting and protecting the compressor from liquid slugging.

• Interchangeable Design: Fully compatible with the X-9117-B7B, allowing for seamless replacement in Alco TER series valve bodies.
• High-Capacity Performance: Delivers up to 26 tons of nominal capacity (R-22/R-407C), making it ideal for large commercial air conditioning and process cooling.
• Service Efficiency: The "Take-Apart" modularity permits cage replacement by removing only the cap screws, keeping the valve body in the line.
• Multi-Refrigerant Support: Engineered for use with R-22, R-134a, R-404A, R-407C, and legacy refrigerants, providing broad application coverage.
• Stable Superheat Control: The double-ported configuration ensures excellent partial load performance down to 10% of total capacity.

Is the 078117 cage assembly compatible with newer HFC refrigerants?
Yes, this assembly is rated for R-407C and R-404A, though performance varies by refrigerant type. Always verify the power element charge is appropriate for the specific refrigerant in use.

How do I verify if I need the X9117B7B or a different cage size?
Check the identification tag on the existing valve or the stamping on the cage. The "B7B" designation refers specifically to the port sizing for the TER valve body. Capacity should be matched to the evaporator load at peak conditions.

Can this cage be used in bi-flow applications, such as heat pumps?
The Alco T-Series with this cage assembly supports bi-flow operation when paired with the correct HCA charged power element, providing reliable expansion in both heating and cooling modes.

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.