Chapter 2 Mechanical Installation 13
Liebert APM 90 Integrated Modular UPS User Manual
The UPS can be moved by means of a forklift or similar equipment. It can also be moved short distances by its
casters.
2.4.3
Clearances
The UPS has no ventilation grilles at either side, therefore, no clearance is required at either side.
The component layout of the UPS supports front access and rear access in UPS service, diagnosis and repair. To
enable routine tightening of power terminations within the UPS, in addition to meeting any local regulations,
it is recommended to provide adequate clearance in the front and at the back of the cabinet for unimpeded
passage of personnel with the front and back doors fully opened.
2.4.4
Cable Entry
The UPS uses top cable entry and bottom cable entry, with cable entry holes provided both at the bottom and
on the top of the UPS.
2.4.5
Final Positioning And Fixing
When the UPS has been finally positioned, ensure that the adjustable feet are set so that the UPS will remain
stationary and stable.
2.4.6
Installing Power Module And Output Distribution Module
The installation positions of the power modules and output distribution modules are shown in Figure 2-1. If
four output distribution modules are configured, the position of the SPM monitoring module shown in
Figure 2-1 is used to install an output distribution module.
Install the power modules and output distribution modules from bottom to top to avoid cabinet toppling due
to high gravity center.
Installation procedures of power module
Refer to Figure 2-2, and use the following procedures to install the power module:
Power module
A amplified view
Fixing hole
DIP switch
Ready switch
A
Power module
A
DIP switch
Ready switch
Fixing hole
A Amplified view
Figure 2-2
Installing power module
