Vertiv Liebert DSE - Downflow Units with Filter Plenums and Upflow-Unit Plenums with EC Fans; Downflow Unit Filter Plenums

7. Using the jack, lower the fan module slowly until it rests on the frame of the unit.
NOTICE
Risk of equipment snagging cables and wiring. Can damage the unit wiring and components.
Carefully monitor the position of the EC-fan wire harnesses and other parts while lowering the
fan to be sure that they are not caught or pinched.
8. Secure the fan module in the fully lowered position by reinstalling the hex head screws directly
to the frame. Screw clearance holes are provided in the fan module.
NOTE: Not all hardware retained will be used to secure the fans in the lowered positioned.
9. Repeat steps 3 through 8 to lower remaining fan modules.
Figure 7.2 Lowering EC fans into floor, steps 7 through 8
7.2 Downflow Units with Filter Plenums andUpflow-unitPlenumswithECFans
7.2.1 Downflow Unit Filter Plenums
Filter plenums are installed on DSE downflow models DA125, DA150, and DA165 and are required for
operation. Read all instructions before installing plenums.
7 EC Fans and Plenums 47