York S1-024-21218-700 Relay

The York S1-024-21218-700 Relay is a heavy-duty 24V SPST Relay designed for reliable low-voltage control switching across York, Coleman, and Luxaire HVAC platforms. Engineered for precision performance, this Single Pole Single Throw relay functions as a critical HVAC control relay, managing high-power components like blower motors, compressors, and heat pump reversing valve assemblies. For technicians troubleshooting intermittent signal loss or coil failure, this OEM York relay offers a direct-fit solution with standard 1/4 inch quick-connect terminals, ensuring high-speed integration into existing wiring harnesses. Its compact, rugged housing is built to withstand 60Hz cycling demands in both residential furnaces and light commercial air handlers. By maintaining stable contact pressure, the S1-024-21218-700 prevents arcing and ensures consistent 24VAC circuit completion, protecting downstream electronics from voltage fluctuations during system startup and operation.

• Universal Compatibility: Serves as the primary 24V SPST replacement relay for a wide array of York and Coleman heat pump and furnace models.
• Enhanced Durability: Constructed to rigorous OEM technical specifications for long-cycle reliability in high-ambient temperature environments.
• Simplified Field Service: Features standard 1/4" terminal spade connectors for rapid "plug-and-play" installation in the field.
• Multi-System Application: Validated for use in reversing valve control, fan motor switching, and general-purpose pilot duty applications.

What is the coil voltage rating for the S1-024-21218-700?
This relay is rated for a 24VAC control signal at 60Hz, common in most residential thermostat-controlled HVAC systems.

Can this relay be used as a reversing valve relay?
Yes, the York S1-024-21218-700 is an industry-standard heat pump reversing relay often utilized in Coleman and Luxaire air handlers to manage heat/cool mode switching.

Does this unit feature Normally Open (NO) or Normally Closed (NC) contacts?
As an SPST relay, it typically operates with one set of contacts that close upon receiving a 24V signal to complete the circuit.

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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.