Emerson Liebert Economizer Solutions User Manual

          

Before beginning the installation of the Liebert Air Economizer, read all instructions, verify that all the parts 

are included, and check the nameplate to be sure the Liebert Air Economizer voltage matches available util-

ity power.
Follow all local and national codes.

Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within.

Risk of unit falling over. Can cause death, injury and equipment damage.
The Liebert Air Economizer is top-heavy. Use extreme caution and care when moving and 

installing this unit.

Risk of piping and component rupture. May cause injury or equipment damage.
Closing service valves may isolate liquid refrigerant, causing high pressure and rupture of 

piping. Do not close valves without following recommended procedures for repair, 

maintenance and replacement of components. Install pressure relief valves in field piping 

that may become isolated by service valves.

NOTE
This document is to be used together with site-specific documentation and documentation for 

other parts of the system (heat rejection devices and cooling modules).

NOTE
Before any action that could cause a disturbance in the cooling system’s function is begun, the 

facility manager MUST be informed. In addition, after the action is taken and the work is 

finished, the facility manager MUST be informed.