Lennox 20G51 Relay 321894-708 Automated Commissioning: The AUTO stroke

Automated Commissioning: The AUTO stroke calibration eliminates the need for manual stroke adjustments

System Efficiency: Reduces internal bypass and leakage by maintaining the integrity of the spring-loaded self-adjusting packing

as burner configurations may change for units built prior to mid-2005

Can I bypass a fusible link to restore heat temporarily

Optimized Heat Dissipation: The 1100 RPM speed is tuned for maximum airflow efficiency across condenser fins

Lennox 20G51 Relay 321894-708 Automated Commissioning: The AUTO strokeThe Lennox 20G51 Relay is a high performance 24V 3PDT relay engineered for precise circuit control in commercial and residential HVAC systems. Designed as a direct OEM Lennox replacement part, this triple pole double throw relay allows for the simultaneous management of three independent circuits, making it indispensable for complex switching logic where isolation between power sources or signal paths is required. Operating at a standard 24VAC control