119 Liebert
®
CW
™
System Design Manual
5.0 Execution
5.1 INSTALLATION OF THERMAL MANAGEMENT UNITS
5.1.1 General
The user shall install Thermal Management units in accordance with manufacturer’s installation
instructions. The units shall be installed plumb and level, firmly anchored in locations indicated and shall
maintain manufacturer’s recommended clearances.
5.1.2 Electrical Wiring
The user shall install and connect electrical devices furnished by the manufacturer but not specified to be
factory-mounted. The manufacturer shall furnish a copy of manufacturer’s electrical connection diagram
submittal to electrical contractor.
5.1.3 Piping Connections
The user shall install and connect devices furnished by the manufacturer but not specified to be
factory-mounted. The manufacturer shall furnish a copy of piping connection diagram submittal(s) to the
piping contractor.
5.1.4 Supply and Drain Water Piping
The user shall startup Thermal Management units in accordance with the manufacturer's startup
instructions. The manufacturer shall test controls and demonstrate compliance with requirements.
5.2 FIELD QUALITY CONTROL
Start cooling units in accordance with manufacturer's startup instructions. Test controls and demonstrate
compliance with requirements. These specifications describe requirements for a computer-room
environmental-control system. The system shall be designed to maintain temperature and humidity
conditions in the rooms containing electronic equipment.
The manufacturer shall design and furnish all equipment to be fully compatible with heat-dissipation
requirements.
5.3 WARRANTY START-UP AND CONTROL PROGRAMMING
Install the indoor unit in accordance with manufacturer's installation instructions provided with seismic
option. Firmly anchor maintaining manufacturer's recommended clearances. Mounting requirement details
such as anchor brand, type, embedment depth, edge spacing, anchor-to-anchor spacing, concrete
strength, special inspection and attachment to non-building structures must be outlined and approved by
the Engineer of Record for the projection or building. Electrical, pipe and duct connections must permit
movement in three dimensions and isolate the unit from field connections. Electrical conduit shall be
flexible, having at least one bend between the rigid connection at the unit cabinet and the connection to
rigid conduit or foundation. The piping flexible connection or loop must be suitable for the operation
pressure and temperature of the system. Furnish copy of manufacturer's piping connection diagram
submittal to piping contractor.
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