NOTICE
Risk of clogged or leaking drain lines and leaking water supply lines. Can cause equipment and building
damage.
This unit requires a water drain connection. Drain lines must be inspected at startup and periodically, and
maintenance must be performed to ensure that drain water runs freely through the drain system and that lines
are clear and free of obstructions and in good condition with no visible sign of damage or leaks. This unit may
also require an external water supply to operate.
Improper installation, application and service practices can result in water leakage from the unit. Water
leakage can result in catastrophic and expensive building and equipment damage and loss of critical data
center equipment.
Do not locate unit directly above any equipment that could sustain water damage.
We recommend installing a monitored fluid detection system to immediately discover and report coolant-fluid
system and condensate drain line leaks.
NOTICE
Do not install an external trap in the drain line. This line already has a factory installed trap inside the cabinet.
Installation of a second trap will prevent drain water flow and will cause the water to overflow the drain pan.
Sagging condensate drain lines may inadvertently cause an external trap.
NOTICE
Risk of doorway/hallway interference. Can cause unit and/or structure damage. The unit may be too large to fit
through a doorway or hallway while on the skid. Measure the unit and passageway dimensions, and refer to the
installation plans prior to moving the unit to verify clearances.
NOTICE
Risk of damage from forklift. Can cause unit damage. Keep tines of the forklift level and at a height suitable to
fit below the skid and/or unit to prevent exterior and/or underside damage.
NOTICE
Risk of improper storage. Can cause unit damage.
Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage.
NOTE: The Liebert® indoor cooling unit has a factory installed, high pressure safety switch in the high side
refrigerant circuit. Each refrigerant receiver contains a fusible plug for fire safety purposes. Consult your local
building code to determine whether the refrigerant piping will require additional, field provided pressure relief
devices.
1 Important Safety Instructions
5
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