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The BOSCH 7738002778 is a downflow conversion kit designed for use with the 3-ton DX-series unitary air handler. This accessory reconfigures the air handler for downflow discharge orientation, directing conditioned air downward through the duct system rather than in the default configuration. It is installed by licensed HVAC technicians during equipment setup or when a job site requires a downflow air distribution layout. The kit provides the hardware and components needed to complete the conversion without field fabrication.
This kit is intended for residential and light commercial HVAC installations where a downflow supply configuration is required. It is matched to the DX035 3-ton unitary air handler platform. Downflow installations are common in applications where supply ductwork runs beneath the unit, such as crawlspace or basement distribution systems. Proper orientation selection before installation prevents rework and ensures system airflow design targets are met.
Designed for use with the BOSCH DX035 3-ton unitary air handler. Verify model number and configuration requirements before installation.
Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the air handler before beginning any conversion work. Confirm the intended airflow direction and duct connection orientation prior to mounting the kit components. Follow the equipment manufacturer installation instructions and all applicable local mechanical codes.
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