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The 64L81 is specifically cataloged for Lennox G14 and G21 series furnaces
this sensor ensures the rooftop unit (RTU) utilizes free cooling only when the outdoor air's total energy content is lower than the return air
Engineering specifically for supermarket refrigeration control and industrial HVAC applications
It also serves as a direct drop-in for larger IID pool heater units
Industrial Durability: The Class F insulation and NEMA 4X conduit housing ensure the 120V coil withstands harsh environment cycling
Carrier 48TM400646 Blower Assembly 321894-708 The 64L81 is specifically catalogedThe 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
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