Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW User Manual

Refer to 6.0 - Checklist for Completed Installation and verify that all installation items have 

been completed before beginning to start the condenser.

1. Locate Liebert Condensers Warranty Inspection Check Sheet, Document # PSWI-8542-407-CO.
2. Turn the condenser disconnect On.
3. Turn the indoor unit ON and set for cooling to allow operation of condenser. 
4. Check the fans for proper rotation: Counterclockwise when viewing the unit from the fan guard 

(top) side.

5. Check that air is being drawn through the coil and discharged out the fan assembly. 
6. Complete Liebert Condensers Warranty Inspection Check Sheet, Document # PSWI-8542-407-CO.

• Contact your local Emerson sales representative or Emerson Network Power

®

 Liebert Services 

support about any questions or problems during unit startup and commissioning.
Local Emerson sales offices and Liebert Precision Cooling support contacts can be found at 

or by calling 1-800-LIEBERT.

Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies and wait 10 minutes before working 

within condenser main electrical enclosure or fan electrical enclosure. Unit contains 

potentially lethal electrical voltage. Line side of factory disconnect remains energized when 

disconnect is Off. Use a voltmeter to make sure power is turned Off before checking any 

electrical connections or functions.
Only properly trained and qualified personnel may perform repair, maintenance, and 

cleaning operation.

Risk of high-speed, rotating fan blades. Can cause injury or death.
Fan blades can start rotating without warning at any time during a cooling cycle or after 

power is restored after a power failure. Disconnect all electrical power supplies to the unit, 

verify with a voltmeter that the power is Off and verify that all fan blades have stopped 

rotating before working on or near the fans.