Hired-Hand External Damper Fans - Manual (Page 12)

Part No. 4801-5402 Rev. 2/09 Mega-Flow External Damper Fans & Cone Page 12 of 13
21. 36”, 48”, 52” and 54” Fans: Install the Fan Inlet Frame with Wire Guard by lifting the bottom into
the slot at the bottom of the fan housing. For the 52” Fan, the Wire Guard has an opening hole for
the motor. Use two spring latches on either side of the fan housing to secure the Inlet Frame.
See Figure 13.
22.
There are two unused holes in the bottom of the cone.
For reference refer back to Figure 8. Place a 3/8” bolt
and nut in these holes to prevent light from passing
through. See Figure 14.
23.
There are two pre cut drain holes in the bottom of the
fan housing in either corner and one in the bottom
center of the cone. These may be opened if
necessary. See Figure 14.
24.
Connect power to fan and verify proper operation.
25.
Fan and Cone installation complete.
Figure 13: Install Fan Inlet Frame
Figure 14 – Fill Unused Holes in Cone
Fill
unused
holes in
cone
Water
Drain
Holes
Wire Guard has
opening for
motor.