TABLE OF CONTENTS
1 Important Safety Instructions 5
2 Nomenclature and Components 9
2.1 Liebert DSE500 Packaged Solution Model-number Nomenclature 9
2.2 Component Location 10
2.3 Air-flow Configurations 11
3 Pre-installation PreparationandGuidelines 13
3.1 Planning Dimensions 13
3.2 Connections and System Setup 14
3.2.1 Electrical Connections 14
3.2.2 Evaporator Drip-pan Connection 14
3.3 Operating Conditions 15
3.3.1 Cooling 15
3.4 Unit Weights 15
4 Equipment Inspection and Handling 17
4.1 Rigging to Lift the Unit 17
5 Electrical Field Connections 19
6 Checklist for Completed Installation 23
6.1 Moving and Placing Equipment 23
6.2 Electrical Installation Checks 23
6.3 Other Installation Checks 23
6.4 BMS and Sensor Installation Checks 23
7 Initial Start-up Checks andCommissioningProcedure forWarrantyInspection 25
8 Maintenance 27
8.1 Service Access for Unit Maintenance 27
8.2 Filters 28
8.2.1 Replacing the Filters 29
8.3 Evaporator Fan Maintenance 29
8.3.1 Fan Assembly Troubleshooting 30
8.3.2 Fan Assembly Maintenance 30
8.3.3 Blower-motor Lubrication 30
8.3.4 Removing Fan Assembly 31
8.4 Electronic Expansion Valve (EEV) Maintenance 31
8.5 Compressor Maintenance 31
8.5.1 Compressor Oil 31
8.5.2 Rotalock Valve 31
8.5.3 Replacement Compressors 32
8.5.4 Compressor Motor Burnout 32
8.5.5 Unloading Solenoid(s) on a Digital-scroll Compressor 32
8.5.6 Replacing the Compressor 32
8.6 General Condenser Maintenance 33
8.7 Condenser Cleaning 33
8.7.1 When to Clean the Condenser Coil 33
8.7.2 What to Use to Clean the Condenser Coil 34
8.7.3 Cleaning the Condenser Coil 34
8.7.4 Cleaning the Condenser Fan 34
8.8 Replacing the Condenser Fan 35
8.8.1 Verifing the Fan Address 40
Vertiv | Liebert® DSE500™ Installer/User Guide | 3