Combustion Optimization: Properly directs flame travel into the heat exchanger tubes for maximum thermal efficiency

making it a versatile component for technicians managing R-22 or R-422D systems

verified for use in harsh HVACR duty cycles

and precise flame sensing into a single

By restoring the correct exhaust vent airflow

Trane RLY2547 Relay R-407A Combustion Optimization: Properly directs flameThe Trane RLY2547 is a heavy duty 10A SPDT Enclosed Relay engineered for reliable pilot duty and power switching applications within HVACR control circuits. Designed as a direct OEM replacement relay, this unit features a Single Pole Double Throw configuration, allowing for versatile normally open or normally closed logic. It operates with a 24VAC coil, making it compatible with standard 24V control transformers found in Trane and American Standard