Emerson Alco 049881 Power Assembly

Optimize your refrigeration system with the Emerson Alco 049881, a professional-grade XB-1019FC1B Power Assembly designed for precision refrigerant metering. This unit is specifically engineered for R12 refrigerant applications, providing the reliable mechanical force needed for accurate thermostatic expansion valve (TXV) operation. Featuring a 1/4" SAE flare equalizer, it ensures stable superheat control by monitoring evaporator pressure directly at the outlet. The 5-foot capillary tube offers sufficient length for versatile mounting while maintaining thermal response integrity.

Ideally suited for an application temperature range of -20 to +50 degrees Fahrenheit, this replacement power assembly is a critical component for maintaining peak evaporator efficiency. The stainless steel power element is built to withstand harsh environments, preventing corrosion and ensuring long-term seat stability. As part of the Alco T-series take-apart family, this assembly includes the necessary capscrews for a secure field installation, allowing contractors to perform fast, reliable service without replacing the entire valve body.

• Precise Sub-Zero Control: Specifically calibrated for -20°F to +50°F ranges, ensuring stable performance in medium to low-temp refrigeration.
• Durable Construction: Features a stainless steel diaphragm and power element to resist corrosion and mechanical fatigue.
• Seamless Integration: Direct OEM replacement for the Alco XB-1019FC1B, ensuring perfect fitment with existing T-series valve bodies.
• Field-Serviceable Design: Modular assembly allows for quick head replacement, reducing system downtime and labor costs for technicians.
• Stable Equalization: The 1/4" SAE flare connection provides a secure, leak-free point for external pressure sensing.

Is the XB-1019FC1B compatible with modern refrigerants?
This specific model is calibrated for R12 refrigerant. Using it with different refrigerants may result in improper superheat settings and potential compressor damage due to varying pressure-temperature curves.

Does this assembly include the mounting hardware?
Yes, the Emerson 049881 comes with the required capscrews to secure the power head to the valve body, ensuring a tight seal for the internal mechanism.

What is the purpose of the 1/4" SAE flare equalizer on this unit?
The external equalizer compensates for pressure drops across the evaporator, allowing the TXV power assembly to maintain more accurate superheat control compared to internally equalized valves.

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.