This centrifugal extract fan is engineered to meet the exact mechanical requirements of the Wilbur Curtis WC-37123

economizer actuators

Unlike standard non-bleed valves

making it a critical component for high-pressure house piping and manifold-side control

Durable Construction: Heavy-duty galvanized steel provides long-term resistance to moisture and debris

Utica-Dunkirk 12100105000181 Fan 322056-301 This centrifugal extract fan isThe Utica Dunkirk 12100105000181 Fan is a critical OEM replacement part engineered specifically for SZ1H18 and MZ2H18 condenser units. As a high static condenser fan motor assembly, this component is vital for maintaining the thermal exchange efficiency of your Utica boiler or Dunkirk heating system. Integrated with IV Fan Cond specifications, it ensures targeted airflow management, preventing compressor overheating and high pressure cutouts during