Installing Indoor Unit; Making Base; Installing Base; Vibration Absorbing - Emerson Liebert.PEX+ Series User Manual

 Note
 The equipment has knock-outs, be sure to mount sleeve to the cable holes to avoid cutting the cables.

3.4 Installing Indoor Unit

3.4.1 Making base

The base shall be made by the installation team according to the dimensions, weight and height of the unit to ensure
the rigidness of the structure meets the requirement. User can make the base by himself or ask Emerson to make it.

Note
 For the downflow unit, the base height must be higher than 450mm.
 The external side boards of the unit cannot bear weight.
 The distance between the object that may block the air flow at the top of the base and the outer edge of the EC
fan shall be bigger than 160mm.

3.4.2 Installing base

Determine the installation position according to the requirements of 2.2 manual, and fix the base onto the selected
mounting position. The base shall be fixed to the ground through expansion bolts or spot welding, and the base shall
be calibrated by horizontal ruler before it is fixed, so as to ensure the leveling top surface of the base. For downflow
unit that requires the EC fan to be lowered, we must consider the spatial distance and the strength of the base in the
design and installation of the base.

3.4.3 Vibration absorbing

Lay a layer of rubber cushion on the top, lateral of the base and on the bottom of the steel plate respectively so as to
avoid transmission of vibration during operation of the unit, see Table 3-4 for details.
Item
Rubber
cushion
165
205
Figure 3-8 Knock-out holes of side panel (unit: mm)
Table 3-4 Dimensions of rubber cushion for vibration absorbing (unit: mm)
Top Thickness:3mm to 5mm
Lateral Thickness:2mm to 3mm
Bottom Thickness:10mm to 12mm
Liebert. PEX+Series Precision Air Conditioner
673
728
765
786
835
P1030-2100 series knock-out
Chapter3 Mechanical Installation
Specification
User Manual
13