Common Questions Is the ETR503 compatible with non-Schneider systems

000 BTU/hr for optimal system throughput

Exceeding this limit can damage the silicone seat and diaphragm

Can this be used on commercial steam or hot water boilers

Daikin-McQuay 4022326 Control Box Assembly 323080-701 Common Questions Is the ETR503The Daikin McQuay 4022326 Control Box Assembly is a high specification OEM replacement part designed for integration into industrial HVACR systems. As a critical command center, this assembly regulates essential mechanical functions including compressor sequencing, fan speed modulation, and thermal setpoint management. Engineered for high demand environments, the 4022326 provides the necessary logic and electrical protection to maintain peak energy