Emerson Alco 062078 Power Assembly

The Emerson Alco 062078 Power Assembly, also identified as the XB-1019HC-1A, is a critical replacement component for thermostatic expansion valves in medium to high-temperature R22 systems. Engineered for durability, this assembly features a 5-foot capillary tube and an internal equalizer design, making it suitable for standard DX evaporator coils where pressure drop across the distributor is minimal. With an operating range of -20°F to +50°F, it maintains precise superheat control across varying load conditions. The package includes capscrews for immediate installation. When replacing a TXV power element, ensuring a clean mating surface and proper bulb placement on the suction line is vital for accurate sensing. This HVAC replacement part is essential for restoring system efficiency and preventing liquid slugging in R22 refrigeration systems, providing the reliability required for demanding light commercial and residential cooling applications.

Key Benefits

• Direct Interchangeability: Fully compatible with XB-1019HC1A specifications, ensuring a seamless fit for legacy Emerson/Alco valve bodies.
• Precise Pressure Sensing: The internal equalizer eliminates the need for external lines on systems without significant evaporator pressure drops.
• Wide Application Range: Rated for -20 to +50 degrees Fahrenheit, covering the majority of air conditioning and refrigeration requirements.
• Extended Reach: The 5-foot capillary provides flexible bulb positioning for optimal thermal contact on the suction header.
• Complete Kit: Includes necessary hardware for a leak-free installation and secure attachment to the valve head.

Common Questions

Is the 062078 power assembly compatible with refrigerants other than R22?
This specific model is charged and calibrated specifically for R22 refrigerant. Using it with different refrigerants will lead to incorrect superheat settings and potential compressor damage.

What is the difference between the 062078 and the XB-1019HC-1A?
They are identical parts. The 062078 is the numerical Emerson item number, while XB-1019HC-1A is the technical model designation.

Does this assembly include the internal orifice or cage?
No, this is the power assembly only. It includes the diaphragm, capillary tube, bulb, and mounting screws, but the internal cage and valve body must be sourced separately if needed.

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.