Ranco LDK-310000-070 Solenoid Coil

The Ranco LDK-310000-070 is a task-specific 120V AC solenoid coil designed for precision actuation of 4-way reversing valves in residential and commercial heat pump systems. Engineered as a standard for "Generation 4" Ranco valves, this black color-coded coil is fully epoxy encapsulated, providing a moisture-resistant barrier that prevents short circuits in high-condensation environments. It supports continuous duty operation, drawing 5 Watts at 50 Hz and 4 Watts at 60 Hz, ensuring the pilot valve maintains stable pressure differentials for seamless refrigerant flow reversal. The assembly includes a W29 wiring harness with 48-inch leads, facilitating direct integration into the system control board. For technicians servicing V0, V1, V2, V3, V6, V10, and V12 series valves, this Robertshaw LDK-310000-070 coil is the required replacement to ensure the heat pump reversing valve operates within factory specifications during intense heating and cooling cycles.

• Universal Compatibility: Specifically designed for Ranco Generation 4 reversing valves including V1, V2, V3, V6, V10, and V12 models.
• Environmental Protection: The epoxy encapsulated housing is moisture resistant, crucial for longevity in outdoor heat pump units.
• High-Efficiency Performance: Consumes only 4 to 5 Watts while providing the magnetic force required for reliable pilot valve actuation.
• Direct Installation: Includes a factory-installed wiring harness with extended 48-inch leads for easier routing through tight electrical cabinets.
• Continuous Duty Rated: Built to withstand the constant energized state required during extended heating or cooling calls without overheating.

Is the LDK-310000-070 coil compatible with older Ranco valves?
This coil is engineered for Generation 4 Ranco valves. If you are replacing a coil on an older "Generation 2" or "Generation 3" valve, a complete valve and coil assembly upgrade may be necessary, as the physical mounting and magnetic requirements differ.

Can this 120V coil be used on a 240V system?
No. The LDK-310000-070 is strictly rated for 120 VAC. Applying 240V will cause immediate coil failure. For 240V applications, the green LDK-410000-070 coil is typically the correct specification.

Does the color of the coil matter?
Yes. Ranco uses a color-coding system for voltage identification. Black signifies 120V AC. Using a different color coil often indicates a different voltage rating, which will lead to system malfunctions or electrical damage.

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.