The SEN0277 uses the RS-485 Modbus RTU protocol for communication

Key Benefits: Optimized Compatibility: Designed specifically for International Environmental Corporation fan coil systems to ensure a perfect mechanical fit without field modifications

facilitating a secure and leak-resistant interface with standard gas lines

Quiet Operation: Precision-engineered sleeve bearings minimize vibration and mechanical noise within the blower housing

If the outdoor coil is encased in thick ice or the system remains in defrost mode for more than 15 minutes

Maxitrol M651W-1 Valve THPU32HP7Y The SEN0277 uses the RS-485The Maxitrol M651W 1 is a high performance modulating gas valve engineered for atmospheric burners requiring higher outlet pressures. Featuring 1" NPT connections, this unit is rated for a maximum 1 2 PSI inlet pressure and provides a precise low fire adjustment range of 1. 2" to 2. 5" w. c. Designed for seamless integration into industrial and commercial heating systems, it utilizes covered wire terminals to ensure secure electrical connections in