Lennox 21W89 Transformer/Relay Refrigerant The unit is designed for

The unit is designed for durability in high-demand HVACR environments

As a gas pressure safety switch

Optimized Performance: Direct-drive motor improves HVAC system efficiency and airflow

For contractors working with Nordyne

Lennox 21W89 Transformer/Relay Refrigerant The unit is designed forFor veteran technicians looking to maintain system integrity, the Lennox 21W89 Transformer Relay is a critical OEM component engineered for precision HVAC voltage regulation. This heavy duty transformer relay assembly is designed to step down 120V line voltage to a consistent 24VAC output at 40VA, 50 60Hz, ensuring stable low voltage control circuit operation even in demanding environments. By integrating a high performance electromechanical relay,