24 Chapter 2 Mechanical Installation
Liebert.PEX Chilled Water Series Air Conditioner User Manual
HWA cable
Terminal inserting
High water-level test switch cable
Figure 2-33 Connecting the corresponding cable terminals of the high water-level detection
switch and the HWA cable terminal
4. Close the front cover of the infrared humidifier’s connection box, and tighten the self-tapping screw.
5. The infrared humidifier’s high water-level detection switch floating pole and its body have been tightened
with the rubber string in factory, as shown in Figure 2-34. Before operating the unit, remove the rubber string,
otherwise the unit cannot detect and alarm the high water-level.
Rubber string
Floating pole
Figure 2-34 Floating pole of the high water-level sense switch
Remove the rubber string to fix the pipe
To avoid the sheet-metal from damaging the longer copper pipe, the damping foam is used to underlay or
clamp the pipe before it leaves the factory. The foam should be removed and cleaned before commissioning.
2.6 Adjusting Water Level Regulator
The water level regulator of the infrared humidifier is screwed down completely. Before commissioning,
unscrew the water level regulator till its head is 45mm above the water tray bottom, as shown in Figure 2-35.
4
5
45
Figure 2-35 Adjusting distance from the water tray
