the SEN1523 is optimized for multi-zone configurations

Technicians should monitor the integrated gauges

ensuring the combustion chamber is cleared before the 24V or 120/240V gas valve is energized

The Resideo ZD20X12TZ (also identified as ZD20X12TZ/U) is a heavy-duty 20x12 rectangular zone damper engineered for tight airflow management in forced-air systems

Sensus 143-62-023-37 Orifice 322838-753 the SEN1523 is optimized forThe Sensus 143 62 023 37 is a precision engineered 1 8" orifice specifically designed for the Sensus 143 80 series domestic service regulators. Built for reliability in residential and light commercial gas regulation, this aluminum orifice serves as the flow control heart for the Sensus 143 regulator body. It is rated for a maximum inlet pressure of 125 PSIG, providing a stable platform for high pressure delivery systems while maintaining tight shut