Emerson Alco 066205 Solenoid Valve

The Emerson Alco 066205 (Model 200RD4T3M) is a robust pilot-operated refrigeration solenoid valve engineered for liquid, suction, or discharge gas service. This 2-way normally closed solenoid valve features a 3/8" sweat connection with extended copper ends, facilitating a simplified brazing process without the need for internal disassembly. As the direct replacement for the legacy 066163, this updated version includes an integrated manual stem, providing essential override capability during system commissioning or power failures. Designed specifically for high-pressure applications, it offers an R410A capacity of 7.5 tons and is fully compatible with R744 (CO2) systems, supporting a maximum working pressure of 680 psig and an MOPD of 550 psig. The PTFE O-ring seals ensure superior external integrity, while the 200RD series pilot-operated design minimizes power consumption across the liquid line and discharge path.

• Manual Override Capability: Features a manual stem for mechanical opening of the valve during troubleshooting or emergency service procedures.
• High-Pressure Ready: Optimized for high-pressure refrigerants, featuring a maximum fluid temperature of 250°F and compatibility with R410A refrigeration and subcritical CO2.
• Extended Sweat Ends: The 3/8" ODF sweat connections allow for direct brazing, reducing leak points and saving installation time in the field.
• Universal Coil Compatibility: Part of the 200RD series where a single coil size fits the entire range, simplifying truck stock and refrigeration solenoid valve maintenance.
• Pilot-Operated Performance: Delivers high flow rates with a 2 psi minimum operating pressure drop, ensuring efficient liquid line solenoid valve operation.

• Is the coil included with the valve body? No, the 066205 is a VLC (Valve Less Coil) model. You must pair it with a compatible Emerson ASC2 or AMG solenoid coil based on your system voltage requirements.
• Can this valve be mounted in any orientation? For optimal performance and to prevent debris accumulation in the enclosing tube, it is recommended to mount the valve with the coil in a vertical-up position; mounting more than 90° off the vertical is not advised.
• Is this compatible with the older 066163 model? Yes, the 066205 is the direct technical successor to the 066163, with the primary difference being the addition of the manual stem on the 200RD4T3M.

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.