The ZoneFirst ZDSM-32X20 is a heavy-duty rectangular zone damper designed for high-performance airflow management in residential and commercial HVAC systems

Does this valve work with R-410A

Can this flange be used with a 5JE or 5JN sleeve

Key Benefits High-Efficiency Coalescing: Effectively eliminates ultra-fine oil aerosols and sub-micron particulates to protect sensitive HVACR controls

Common Questions What causes a blocked vent switch to trip

York 225-45372-000 Inverter 321042-401 The ZoneFirst ZDSM-32X20 is aThe York 225 45372 000 Inverter is a critical power conversion component engineered for York HVAC systems and high capacity rooftop units. As a precision built variable frequency drive (VFD), this module regulates motor speeds to optimize energy consumption and maintain stable discharge pressures. Designed specifically for integration with York chiller parts and air side equipment, it ensures consistent torque and high efficiency performance under