Vertiv Liebert CW User Manual

TABLE OF CONTENTS
Important Safety Instructions 1
1 Nomenclature and Components 7
1.1 Liebert CW Model-number Nomenclature 7
1.2 Component Location 10
2 Pre-installation PreparationandGuidelines 11
2.1 Planning Dimensions 11
2.2 Connections and System Setup 12
2.3 Operating Conditions 12
2.3.1 Cooling, Dehumidification and Humidification 12
2.3.2 Humidification Control 12
2.4 Shipping Dimensions and Unit Weights 12
3 Equipment Inspection and Handling 13
3.1 Packaging Material 14
3.2 Handling the Unit while Packaged 14
3.3 Unpacking the Unit 15
3.4 Removing the Unit from the Skid 16
4 Electrical Connections 21
5 Piping Requirements 23
5.1 Drain Fluid Connections 24
5.1.1 Field-installed, Gravity-fed Drain Line Requirements 24
5.1.2 Condensate-pump Drain Line Requirements 25
5.2 Chilled-water Loop Piping Guidelines 25
5.2.1 Leak Checking for Unit and Field-installed Piping 27
6 Checklist for Completed Installation 29
6.1 Moving and Placing Equipment 29
6.2 Electrical Installation Checks 29
6.3 Piping Installation Checks 29
6.4 Other Installation Checks 29
7 Initial Start-up Checks andCommissioningProcedure ForWarrantyInspection 31
8 Maintenance 33
8.1 Filters 34
8.1.1 Replacing the Filters 35
8.2 Fan Maintenance 36
8.2.1 Fan Assembly Troubleshooting 36
8.2.2 Fan Impellers 37
8.2.3 Blower-motor Lubrication 37
8.2.4 Removing Fan Assembly 38
8.3 Condensate-drain and Condensate-pump System Maintenance 38
8.3.1 Condensate Drain 38
8.3.2 Condensate Pump 38
Vertiv | Liebert® CW™ Installer/User Guide | iii

Vertiv Liebert CW Specifications

General

Brand	Vertiv
Model	Liebert CW
Category	Control Unit
Language	English