Unit installation

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important safety instructions that should be followed during the installation

and maintenance of the Liebert CRV. Read this manual thoroughly before attempting to carry out

any operations on the Liebert CRV, including installation and operation. Retain this manual for the

entire service life of the Liebert CRV.

Only properly trained and qualified personnel should move, install or service this equipment.

Adhere to all warnings, cautions and installation, operating and safety instructions on the unit and in

this manual. Follow all operating and user instructions.

Any operation that requires opening doors or equipment panels must be carried out only by properly

trained and qualified personnel.

Each machine is equipped with an electric insulation device that allows the operator to work safely.

Switch Off the machine with this electric insulation device before beginning any maintenance opera-

tion to eliminate remaining risks (electric shocks, burns, automatic restarting, moving parts and

remote control).

The panel key supplied with the unit must be kept by the person responsible for maintenance. To

identify the unit by model and serial number in order to obtain assistance or spare parts, locate the

identification label on the outside of the unit.

A warning label on the front and back panels reminds users that:

• the Liebert CRV restarts automatically

• the main switch must be opened before opening the internal compartments for any operation.

WARNING

Risk of electric shock, high temperatures, extreme cold and high speed rotating parts. Can

cause equipment damage, injury and death.

Disconnect all local and remote electrical power supplies and allow the component

temperatures to become safe for human contact before removing protective covers and

working within.

If the doors are opened immediately after the Liebert CRV has been switched Off

• some components, such as electrical heaters, compressor, outlet area and outlet piping, may

remain at high temperature about 212°F (100°C);

• some components, such as the evaporator, may remain at low temperature;

• rotating elements, such as the fan impellers, may continue to rotate by inertia.

These residual risks are highlighted by warning labels on the Liebert CRV.

WARNING

Risk of explosive discharge from high-pressure refrigerant. Can cause injury and death.

This unit contains fluids and gases under high pressure. Relieve pressure before working with

piping.