This model is a direct replacement for US Motors 917301 and serves as a versatile service part for residential and light commercial oil heating systems

The Resideo ARD9TZ is a 9-inch automatic round damper engineered specifically for high-efficiency forced air zoning systems that require reliable airflow control

it is recommended to use shielded cable for runs exceeding 50 feet to eliminate electromagnetic interference (EMI) from high-voltage lines

utilizing an adsorption charge (active carbon and CO2) to modulate flow based on temperature fluctuations

minimizing downtime during mid-season maintenance

Heat Controller 802400300024 Motor 326058-757 This model is a directThe Heat Controller 802400300024 Motor is a high performance 25W 4 pole motor engineered for precision airflow in residential and commercial HVAC systems. Operating at 208 230V, this genuine OEM replacement motor is the standard specification for maintaining optimal static pressure and air exchange rates in compatible Heat Controller blower assemblies. As a veteran grade HVAC blower motor replacement, it features a factory balanced design to minimize