Carrier 48TM400646 Blower Assembly 322838-754 The internal contact block is

The internal contact block is factory-sealed to maintain high contact force until the precise break point

with a high-capacity flow rate of up to 240

and Tempstar units

Its round metal case design ensures a direct fit for most traditional mounting brackets

5-inch diameter motor

Carrier 48TM400646 Blower Assembly 322838-754 The internal contact block isThe Carrier 48TM400646 Blower Assembly is a specialized IFM Blower Assembly engineered for high static internal fan motor applications. Designed specifically for Carrier commercial rooftop units, this heavy duty blower housing provides the exact structural tolerances required to maintain static pressure and system efficiency. As a genuine OEM HVAC replacement part, this 48TM400646 assembly ensures precise wheel to housing alignment, reducing vibration