The Lennox 10P21 Honeywell R8222D1014/U general purpose relay is a heavy-duty DPDT control relay designed for reliable switching in HVAC, refrigeration, and electrical control applications. It features a 24 VAC control coil with 12 VA power consumption and is commonly used in air conditioning equipment, appliances, vending machines, and similar systems requiring dependable low-voltage control.

This relay is built with an open coil design to promote cooler operation and long service life. Laminated magnet construction improves efficiency, while molded terminal numbers and a clearly marked circuit diagram on the top of the relay allow for quick identification during wiring, troubleshooting, and service. Double quick-connect spade terminals provide secure electrical connections and simplify installation.

The base is designed for easy replacement of competitive relays and is plug-compatible with Steveco 90-340 and Mars 90340 models, making it a convenient OEM replacement option for service technicians. With robust contact ratings across pilot duty, AFL, ALR, and resistive loads, the R8222D1014/U relay delivers consistent performance in demanding HVAC control environments where durability and reliability are critical.