Emerson Alco 057834 Power Element

The Emerson Alco 057834 Power Element, also identified as the X-26300-HCA-1, is a critical replacement component for thermostatic expansion valves in high-demand heat pump systems. Designed specifically for R22 and R407C refrigerant applications, this unit features a 5-foot capillary tube and a specialized HCA charge. This heat pump charge is engineered to prevent liquid migration to the element, ensuring consistent superheat control across varying ambient temperatures and operating conditions. The stainless steel construction of the power element diaphragm provides the durability required for HVACR system maintenance and long-term reliability in the field. When performing a TXV power element replacement, this component ensures exact mechanical compatibility with existing Alco valve bodies, maintaining the hydraulic balance necessary for optimal evaporator coil feeding. Using an authentic Emerson Alco 057834 is essential for contractors looking to restore factory-spec pressure regulation and prevent compressor slugging in legacy and retrofitted cooling systems.

• Precise Superheat Regulation: The HCA charge provides stable modulation, specifically optimized for heat pump reversing cycles.
• Universal Compatibility: Fully interchangeable with the Emerson part number X-26300-HCA-1 for seamless field installation.
• Extended Reach: Includes a 5-foot capillary tube to allow for flexible positioning and secure mounting away from localized heat sources.
• Dual Refrigerant Application: Field-proven performance on both R22 and R407C systems, making it a versatile truck-stock item.
• Corrosion Resistance: High-grade stainless steel diaphragm prevents premature failure due to environmental moisture or vibration.

Is the 057834 compatible with R410A systems?
No, this specific power element and HCA charge are designed exclusively for R22 or R407C pressure-temperature curves. Using it with R410A will result in improper TXV operation and potential system damage.

What is the difference between 057834 and X-26300-HCA-1?
There is no functional or physical difference; these are identical parts. The 057834 is the primary SKU, while X-26300-HCA-1 is the technical model designation used by Emerson Alco.

Can I install this on a standard AC unit, or is it only for heat pumps?
While optimized for the demands of heat pumps, the HCA charge is compatible with standard air conditioning applications using R22 or R407C where a power element replacement is required.

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.