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Vertiv I Liebert LPC I User Manual
2.12.13 Pre-Commissioning Checklist
Table 2.15 shows the Pre-Commissioning checklist for the Liebert LPC Model:
Table 2.15
Pre-Commissioning Checklist
Name of Customer:
Site Location:
Details:
S. NO Indoor Unit positioning & Power cabling, CU piping, GI piping Remarks
1 Indoor units are properly spaced from the maintenance point view, minimum
gap of 6" maintained on the back side & in between of the units
2 Proper levelling of Liebert LPC indoor stand with proper grounding
3 Drip tray installed properly with silicon sealant applied on the floor stand
corner
4 Units are installed properly with rubber pads in between the unit & the stand
5 Proper earthing is provided in the mains power supply as well as body earthing
for PAC unit
6 Power cable is provided with proper sizing of the cable to suit the full capacity
of CRAC unit
7 Power supply is connected to the mains switch with proper lugs & termination
8 Mains power cable is not routed with low voltage cables
9 Soap leak test on brazing joints & also in Cu piping
10 Pressure holding time
11 Quality of copper piping laying, equidistance in between two pipes; Quality of
copper piping laying, equidistance in between two pipes, Degree bends &
12 Initial U trap provided near the indoor unit
13 U traps provided after every 7 RMT in vertical length (based on the needs)
14 Inverted U trap provided near the outdoor unit
Copper pipe with insulation are tagged properly to indicate the brazing joints
16 Proper support for refrigerant piping is configured
17 Copper pipes are painted with the proper color code
18 Additional piping kit installed in case of a vertical distance between indoor to
outdoor is more than 20RMT (or equivalent length exceed 30 Rmt)