Vertiv Liebert DA265 - Piping and Refrigerant Requirements

6 PIPING AND REFRIGERANT REQUIREMENTS
All fluid and refrigeration connections to the unit are sweat copper. 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 located so that it offers the least resistance to air flow. Careful planning of the
piping layout under the raised floor is required to prevent the air flow from being blocked. When installing piping on the
subfloor, we recommend that the pipes be mounted in a horizontal plane rather than stacked one above the other. Whenever
possible, the pipes should be run parallel to the air flow.
The following pipe connections are required:
• A drain line from the unit.
• A drain line from the secondary drain pan (if applicable).
• Refrigerant piping connections between the evaporator unit and the MCV440 heat rejection skid. See
Refrigerant Piping and Charging on page26.
The pipe connection locations, piping general arrangement and schematics are described in the submittal documents
included in the Submittal Drawings.
The following tables list the relevant documents by number and title.
Document Number Title
DPN004476 Piping Schematic, DA125, DA150, DA165 & DA250 with Liebert®MCV
DPN005206 Piping Schematic, DA265 with Liebert® MCV
Piping Arrangement - Liebert® MCVCondenser and EconoPhase Pump Locations
DPN003965 Liebert® DSE Air Cooled Piping Schematic Liebert® MCV Mounted above Liebert® DA125-250
DPN005207 Liebert® DSE Air Cooled Piping Schematic Liebert® MCV Mounted above DA265
Table 6.1 Piping General Arrangment Drawings
Document Number Title
DPN004208 Liebert® DSE Connection Locations, DA250, DA265
Table 6.2 Piping Connection Drawings
6 Piping and Refrigerant Requirements
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