Carrier EF680028 Solenoid Valve

The Carrier EF680028 Solenoid Valve is a critical HVAC OEM replacement part engineered for high-performance refrigerant metering and system protection. This liquid line solenoid valve (LLSV), also recognized under the Sporlan ME14S250-HP designation, is designed to regulate flow and prevent refrigerant migration during system off-cycles. By providing a positive shut-off in the liquid line, it prevents condensed refrigerant from reaching the compressor, significantly reducing the risk of flooded starts and internal mechanical damage. Built with a durable brass body for maximum corrosion resistance, this valve features 5/8" ODF solder connections and is rated for a maximum operating pressure of 450 PSI, making it compatible with a wide range of modern refrigerant control applications in both residential and commercial Carrier and Bryant split systems. Technical specs confirm a 7-inch length and 1.09 lb shipping weight, ensuring a drop-in fit for technicians performing liquid line repairs or long-line set installations where reliable pump-down cycles are required.

• Prevents Compressor Slugging: Stops liquid refrigerant from migrating to the suction side, protecting against premature compressor failure.
• OEM Precision Fit: As a Factory Authorized Part, it matches the exact port geometry and 5/8" ODF connection size for a leak-free installation.
• High Pressure Durability: Rated for a 700 PSI maximum burst pressure, ensuring safe operation within high-pressure R-410A systems.
• Optimized System Efficiency: Facilitates clean pump-down cycles, maintaining thermal equilibrium and reducing energy consumption across refrigeration cycles.

What are the symptoms of a failing liquid line solenoid?
Technicians typically observe hunting expansion valves, variable cooling temperatures, or short-cycling. If the valve fails to close completely, you may see high suction pressure during the off-cycle, indicating refrigerant bleed-through.

Is the coil included with the EF680028 valve body?
This part number typically refers to the valve body and internal plunger assembly. Field technicians should verify the existing coil voltage (e.g., 24V, 120V, or 240V) to ensure the magnetic actuator is compatible with the system’s control circuit.

Can this valve be mounted in any orientation?
For optimal performance and to prevent debris from settling on the plunger seat, it is best practice to install the valve in a horizontal line with the coil housing in the upright vertical position.

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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.