6 Heat Rejection Skid
6.1 Planning Dimensions
The unit dimensions are described in the submittal documents included in theSubmittal Drawings on page107 .
Table 6.1 below lists the relevant documents by number and title.
Document Number Title
DPN004259 Cabinet Dimensional Data, MCV440, Single Skid
DPN004261 Cabinet Dimensional Data, MCV440, Dual Skid
10032070 Cabinet & Anchor Dimensional Data, Liebert® MCV430 + Liebert® EconoPhase + Base Assembly
10032072 Cabinet & Anchor Dimensional Data, Liebert® MCV430 (2) + Liebert® EconoPhase (2) + Base Assembly
Table 6.1 Dimension Planning Drawings
6.2 Vertiv™ Liebert® MCV Electrical Power Requirements
Condenser-rated voltage should be verified with available power supply before installation. Refer to the unit’s electrical
schematic and serial tag for specific electrical requirements. Line voltage electrical service is required for all condensers at the
location of the condenser.
For the most reliable operation of the system, the indoor unit and the Liebert® MCV condenser should be on the same power
source. The Vertiv™ Liebert® DSE system offers an option for a power feed from the active source on the indoor unit to the
outdoor condenser. This configuration provides the greatest reliability and fastest recovery during power loss or source
change.
When powering the outdoor condenser from the indoor unit, there is a breaker/fuse on the indoor unit and the wire sizing
requirements are provided in Table 6.2 on the next page .
A unit disconnect is standard on the Liebert® MCV skid. However, a site disconnect may be required per local code to isolate
the unit for maintenance. Refer to the unit’s serial tag for specific condenser electrical requirements (Table 6.2 on the next
page ).
Route the supply power to the site disconnect switch and then to factory-provided high-voltage enclosure located on the
Liebert® MCV heat-rejection skid. Reference submittal drawings listed in Table 6.2 on the next page .
Model Voltage FLA WSA OPD
MCV440 + PR250*****2
2 = 380V/60Hz 36.4 37.5 40
A = 460V/60Hz 29.4 30.3 35
G = 415V/50Hz 35.4 36.3 40
B = 575V/60Hz 23.5 24.2 35
Table 6.2 Heat Rejection Skid Electrical Data, Three-Phase
6 Heat Rejection Skid Proprietary and Confidential ©2024 Vertiv Group Corp. 59
Vertiv™ CoolPhase CDU Installer/User Guide
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