Vertiv Liebert DSE Packaged Series - Unloading Solenoids on a Digital Scroll Compressor; Compressor Electrical Failure (Motor Burnout); Replacing a Compressor with Electrical Failure (Motor Burnout)

Figure 8.3 Rotalock Valve
Item Description
1 Service port (gauge)
2 Front seat
3 Back seat
4 Compressor side of valve
5 Neutral port
6 System side of valve
8.5.4 Unloading Solenoids on a Digital Scroll Compressor
When replacing a digital-scroll compressor, the digital solenoid valve and coil must be replaced. The compressor and valve
kit are shipped separately. The valve kit must be field-brazed to the top of the compressor in proper orientation and
supported with the original factory bracket.
8.5.5 Compressor Electrical Failure (Motor Burnout)
If a burnout has occurred, a full system clean-out is required. If not cleaned, compressor and system problems will continue.
Consult the factory for compressor maintenance. Do not attempt to remove the compressor without first contacting Vertiv
support at 1-800-222-5877.
8.5.6 Replacing a Compressor with Electrical Failure (MotorBurnout)
WARNING! Risk of electric shock. Can cause serious injury or death. The Liebert® iCOM microprocessor does
not isolate power from the unit, even in the "Unit Off" mode. Some internal components require and receive
power even during the "unit off" mode of the Liebert® iCOM control. Open all local and remote electric power
disconnect switches and verify with a voltmeter that power is Off before working on any component of the
system.
Vertiv | DSE Packaged Solution Installer/User Guide
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