Emerson Alco 052955 Power Element

When you are dealing with a T-Series teardown on a low-temp rack or a dedicated R502 process chiller, the Emerson Alco 052955 (XB-1019RC1B) Power Element is the industry standard for restoring precise superheat control. This stainless steel TXV power head replacement is specifically engineered for R502 refrigerant applications, featuring a dedicated "C" charge designed for stable performance in the -20°F to +50°F evaporating range. Unlike generic components, this Alco 052955 utilizes a 1/4" SAE flare equalizer to accurately sense downstream suction pressure, preventing hunting and ensuring the thermal expansion valve maintains the exact mass flow required by the evaporator. The 5-foot capillary tube provides ample length for proper bulb placement on the suction line, while the included high-tensile capscrews allow for a leak-free seal during the "Take-Apart" assembly process. This power element is a critical refrigeration service part for contractors maintaining legacy systems where reliability and high-side pressure resilience are non-negotiable.

Key Benefits:

• Optimized for R502: Specifically calibrated for R502 vapor pressure curves to ensure consistent superheat adjustment.
• Durable Construction: Features a stainless steel power assembly that resists corrosion and fatigue in harsh mechanical environments.
• Serviceable Design: Compatible with all Emerson T-Series Take-Apart valve bodies, allowing for quick field replacement without brazing in a new valve.
• Broad Application Range: Rated for a temperature spectrum of -20 to +50 degrees, making it ideal for various commercial refrigeration loads.
• Superior Pressure Balancing: The external equalizer type compensates for pressure drops across the evaporator, protecting the compressor from liquid slugging.

Common Questions:

Can the XB-1019RC1B be used with newer refrigerants?
This specific element is factory-charged for R502. While some contractors utilize it in R404A or R507 field conversions, the superheat spring will require significant recalibration to match the different pressure-temperature profiles. It is best practice to match the power element to the specific refrigerant currently in the system.

What is the torque specification for the included capscrews?
To ensure a proper seal with the T-Series flange and cage, the capscrews should be tightened to approximately 300 inch-pounds. Standard veteran practice is a cross-pattern tightening sequence to prevent diaphragm distortion.

How do I prevent capillary tube failure during installation?
Always support the capillary tube at the power element base when unrolling. Avoid making sharp bends within one inch of the element or the sensing bulb to prevent work hardening and potential leaks.

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.