Vertiv Liebert CR012 - Removing Transportation Fastener and Vibration Absorber

Liebert CR012 Precision Air Conditioning User Manual
24 Chapter 2 Installation
Table 2-10
Liquid pipe OD (mm)
Refrigerant refilling amount of per meter liquid pipe (kg/m)
12.7
0.107
16
0.174
19
0.245
22
0.321
25
0.431
28
-
The refilled refrigerant will dilute the PVE oil in the system and plays a major role in the lubrication and cooling effects
of the PVE oil. Thus, it is for this purpose that the refrigerant oil must be added.
The refrigeration oil used in the Liebert CR012 air conditioner is depicted in the table 2-11:
Table 2-11
Unit model
Types of refrigeration oil
CR012
PVE (FV505)
Table 2-12 depicts the amount of refrigeration oil to be added:
Table 2-12
Refrigeration oil adding amount with different pipe length
(length unit: mm, refrigeration oil unit: ml)
Liquid pipe OD (mm)
CR012
10
20
30
35
40
45
50
12.7
Refrigeration oil charging is not
needed
Refrigeration oil charging
is not needed
15
30
16
15
30
45
60
Consult Vertiv for adding the refrigeration oil.
⚫ Do not use poor quality refrigeration oil as it can damage the system
⚫ Select the right make and type of refrigeration oil depending on the model.
⚫ If any error or damage occurs due to adding the incorrect make and type of oil, the warranty will be void.
2.3.6 Removing Transportation Fastener and Vibration Absorber
Certain fasteners and vibration absorbers are mounted on the equipment to protect partial components from getting
damaged and distorted due to bumping, impact, and resonance.
Removal of these fasteners and absorbers is necessary before installation and commissioning.
Removing Pipe fixity
If the copper pipe gets close to the metal plate, it may result in wear and tear of the copper pipe. To prevent this from
occurring, vibration absorbers are fitted between them. However, these objects need to be removed and then the
area must be cleaned prior to installing and commissioning.
Removing limiting piece of the electrical control box
The electric control box may move during transportation. To prevent this abrupt movement, a limiting piece of the
electric control box is installed before delivery. The limiting piece has to be removed before operating the unit so that
the maintenance personnel can slide out the electrical control box during maintenance.
Adjusting the supply air baffle
Adjust the installation direction of the supply air baffle to lead wind to the left or right depending on the installation
location of the Liebert CR012 air conditioners. The supply air baffle is composed of several pieces. Remove the
screws on both sides of the single piece of the supply air baffle, rotate it by 180°. Install it back to change the wind
direction.
Figure 2-25 shows the mounting screws of a single piece of the supply air baffle: