Emerson Alco 046692 Power Assembly

The Emerson Alco 046692 Power Assembly is a critical component for maintaining precise superheat control in high-demand refrigeration systems. Engineered as the XC-726RZ2B model, this take-apart style actuator is specifically designed for use with R502 refrigerant and compatible blends, offering an application temperature range of -50°F to +10°F. This makes it a reliable choice for low-temperature evaporators and freezer transitions where maintaining a stable thermal gradient is essential for compressor protection.

For the veteran technician, the XC-726RZ-2B features a 10-foot capillary tube and a 1/4" SAE flare equalizer connection, ensuring easy integration into existing liquid line configurations. The modular "take-apart" design of the Emerson XC series allows for the replacement of the power element without reclaiming the entire refrigerant charge or disturbing the valve body, significantly reducing downtime. Each assembly includes the necessary replacement capscrews to ensure a leak-proof seal during the bolt-on installation to the valve cage and flange.

• Precise Superheat Regulation: Optimized for R502 systems, preventing liquid slugging in low-temp environments.
• Modular Maintenance: Identical to XC-726RZ-2B, allowing for fast field service without removing the valve body.
• Extended Reach: The 10-foot capillary tube length provides ample flexibility for remote bulb placement on the suction line.
• Technical Compatibility: Features a standard 1/4" SAE flare equalizer to ensure accurate pressure sensing.

Is the 046692 compatible with modern refrigerants like R507?
While originally spec'd for R502, the RZ charge is often cross-referenced for R507 and R404A in specific low-temp ranges. Logically, the pressure-temperature curve of this thermostatic expansion valve power assembly is tuned for deep-freeze setpoints.

Does this include the screws for the flange?
Yes, this low-temperature power assembly comes with the required capscrews included to secure the element to the C-series or T-series take-apart valve body.

What is the primary benefit of the flare equalizer on this model?
The 1/4" flare equalizer allows for a threaded connection to the suction line, which is standard for many legacy Alco and Emerson installations, eliminating the need for brazing the equalizer line in tight spaces.

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.