6. Attach Main Fan Unit to Extension Tube
CAUTION: The main fan unit is heavy. Use caution when raising it.
CAUTION: Be careful not to pinch the fan wiring between the extension tube and main fan unit during
installation.
CAUTION: Do not discard the main fan unit packaging and foam. It should be used if the fan is ever moved
or relocated.
Attach the main fan unit to the extension tube using the Main Fan Unit Hardware as shown. Note: Wiring not
shown in the illustration below.
Tighten the hardware to 25 ft·lb (33.9 N·m) using a 6 mm allen wrench and a torque wrench with a 13 mm socket.
Main Fan Unit Hardware:
a. (2) M8 x 75 mm Socket Head Cap Screw
b. (4) M8 Flat Washer
c. (2) M8 Nylock Nut
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a
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b
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