Vertiv Liebert CRV - 6 PIPING AND REFRIGERANT REQUIREMENTS

6 PIPING AND REFRIGERANT REQUIREMENTS
The chilled water and water/glycol piping use threaded connections. The air-cooled unit and internal
refrigeration connections are sweat copper. The humidifier and condensate supply are threaded
connections. Factory-installed piping brackets must not be removed. Field-installed piping must be
installed in accordance with local codes and must be properly assembled, supported, isolated and
insulated. Avoid piping runs through noise-sensitive areas, such as office walls and conference rooms.
Refer to specific text and detailed diagrams in this manual for other unit-specific piping requirements.
All piping below the elevated floor must be arranged so that it offers the least resistance to airflow. Careful
planning of the piping layout under the raised floor is required to prevent the airflow from being blocked.
When installing piping on the subfloor, we recommend installing the pipes in a horizontal plane rather
than stacked one above the other. Whenever possible, the pipes should be run parallel to the airflow.
The pipe connection locations, piping general arrangement and schematics are described in the
submittal documents included in the Submittal Drawings on page156.
The following tables list the relevant documents by number and title.
DOCUMENT NUMBER TITLE
Air-cooled Systems
DPN002858 Piping Arrangement, 600mm (24in.) Air Cooled w/ Liebert MCCondenser Models
DPN002808 Liebert Piping Arrangement, 300mm (12in.) Air Cooled w/ Liebert MC Condenser Models
Water/Glycol-cooled Systems
DPN001985 Piping Arrangement, 600mm Water/Glycol Cooled Models
DPN003039 Piping Arrangement, 300mm (12in) Water/Glycol Cooled Models
Chilled-water Systems
DPN001986 Piping Arrangement, 600mm (24in.) Chilled Water Models
DPN002976 Piping Arrangement, 300mm (12in.) Chilled Water Models
Table 6.1 Piping General-arrangement Drawings
DOCUMENT NUMBER TITLE
Air-cooled Systems
DPN001792 Connection Locations, CR020R & CR035R Air Cooled Models
DPN002813 Connection Locations, 300-mm (12-in.) Air Cooled Models
Water/Glycol-cooled Systems
DPN001793 Connection Locations, CR020R & CR035R Water/Glycol Models
DPN003040 Connection Locations, 300mm (12in.) Water/Glycol Cooled Models
Chilled-water Systems
DPN001794 Connection Locations, CR040R Chilled Water Models
DPN002814 Connection Locations 300mm (12in.) Air Cooled Models
DPN002815 Connection Locations, 300mm (12in.) Chilled Water Models
Table 6.2 Piping Connection Drawings
Vertiv | Liebert CRV Installer/User Guide | 33