Vertiv Liebert MCV440 - Pre-installation Preparation and Guidelines

3 Pre-installation PreparationandGuidelines
The unit dimensions, pipe connection locations, and piping schematics are described in the submittal documents included in
the Submittal Drawings on page71.
• Install the condenser in a location offering maximum security and access for maintenance.
• Avoid ground level sites with public access and areas prone to heavy snow or ice accumulations.
• To ensure adequate air supply, we recommend that condensers be installed in an area with clean air, away from
loose dirt and foreign matter that might clog the coil. In addition, condensers should be located no closer than 3
ft. (1m) from a wall, obstruction or adjacent unit.
• For roof installation, mount the condenser on suitable curbs or other supports in accordance with local codes.
• Locations that require additional coil-corrosion protection, such as coastal regions, heavy industrial, or
agricultural air pollution, should specify coils with the optional epoxy e-coat.
• Condensers must not be installed in a pit.
• Condensers must be installed on a level surface to ensure proper refrigerant flow.
• The Vertiv™ Liebert® MCV heat rejection skid cannot be installed below the evaporator.
• The DA125 through DA250 are used with a Liebert® MCV heat rejection skid with receiver tanks. For this system,
the outlet of the receivers on the outdoor Liebert® MCV heat rejection skid must be higher than the elevation of
the electronic (EEV) valves inside of the indoor unit. If the vertical height of the receiver outlet is greater than 60
ft. (18.3m) above the EEV, consult the factory. Refer to DPN003965 in Submittal Drawings on page71.
• The DA265 and XDM200/400 is used with a Liebert® MCV heat rejection skid without receiver tanks. For these
systems, the bottom of the condenser coil on the outdoor Liebert® MCV heat rejection skid must be higher than
the elevation of the EEVs inside of the indoor unit. If the vertical height between the condenser coil bottom and
the EEV is greater than 60 ft. (18.3m), consult the factory. For DA265 applications refer to DPN005207 in
Submittal Drawings on page71. For XDM200/400 applications refer to DPN005138 in Submittal Drawings on
page71.
• Condensers must be installed in vertical airflow orientation to maintain the NEMA 3R rating of the electrical box.
3 Pre-installation
PreparationandGuidelines
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Vertiv™ Liebert® MCV Installer/User Guide