Liebert DM User Manual page 27

20 Chapter 2 Mechanical Installation
2. Downflow unit
During the transportation, some cushion foam is inserted into the triangle formed by the motor base and the fan.
Remove the foam before the power-on operation.

Warning
Never put hands into the triangle gap between the motor base and fan.
Removing the transport components of infrared humidifier

Warning
Removal of the transport protection foam may cause fire.
In order to protect the infrared humidifier pump from rupturing during transportation, the protection foam is fitted to the
infrared humidifier components before delivery. Before the unit operation, remove the protection foam and connect the
cable of the high water-level test switch. If you do not operate following the instruct bellow, the infrared humidifier will
not work normally and even the fire may be caused.
The detailed operation procedures are as follows:
1. Cut the cable tie and remove the protection foam fixed under the pump, as shown in Figure 2-28 and Figure 2-29.
Protection foam is at the
bottom of metal sheet
2. Remove four self-tapping screws and remove the front cover plate of the infrared humidifier connection box, as
show in Figure 2-30.
Figure 2-28 Removing protection foam
Pump
Protection foam
Figure 2-29 Protection foam
DM Series 16kW Air Conditioner User Manual
Cable hole of high water-level
test switch cable
Cable tie
High water-level
test switch cable
Protection foam