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Liebert CW Series
Vertiv Liebert CW Series User Manual
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Table of Contents
Default Chapter
3
Table of Contents
3
Important Safety Instructions
5
1 Nomenclature and Components
11
Liebert Cwmodel-Number Nomenclature
11
Component Location
13
Component-Location Drawings
13
2 Pre-Installation Preparation and Guidelines
15
Planning Dimensions
16
Dimension Planning Drawings
16
Location Considerations
17
Air-Distribution Considerations for Downflow Units
17
Downflow Unit Ducting and Plenum Ducting
18
Air-Distribution Considerations for Upflow Units
19
Upflow Ducting Configurations (Forward-Curved Blowers)
19
Upflow Ducting Configurations for EC Fans
20
Connections and System Setup
20
Operating Conditions
20
Cooling, Dehumidification and Humidification
21
Heating
21
Shipping Dimensions and Unit Weights
21
Shipping Weights
21
3 Equipment Inspection and Handling
23
Packaging Material
24
Handling the Unit While Packaged
24
Center-Of-Gravity Indicator
24
Unpacking the Unit
25
Removing the Unit from the Skid with a Forklift
25
Removing the Unit from the Skid Using Rigging
26
Removing from Skid with a Forklift
26
Example Sling Placement on CW146 to CW400 Units
27
Moving Unit with Rigging
28
Moving the Unit to the Installation Location Using Piano Jacks
28
Moving Unit with Piano Jacks
29
Placing the Unit on a Floor Stand
30
Welded Tabs on Floor Stand
30
4 Piping Requirements
31
Piping General-Arrangment Drawings
31
Piping Connection Drawings
31
Drain and Humidifier Fluid Connections
32
Field-Installed, Gravity-Fed Drain Line Requirements
33
Condensate-Pump Drain Line Requirements
35
Water Supply-Line Requirements for the Optional Humidifier
35
Field-Installed Condensate Pump
35
Chilled-Water Loop Piping Guidelines
36
Leak Checking for Unit and Field-Installed Piping
37
5 Electrical Connections
39
Electrical Field-Connection Drawings
40
Downflow Units with EC Fans
41
Lowering the EC Fans into the Floor Stand on Downflow Models
41
6 EC Fans and Plenums
41
Upflow-Unit Plenums with EC Fans
45
Assembly Inspection
46
Plenum Parts Identification
47
EC-Fan Assembly Numbers, Weights and Voltage
47
Plenum Parts and Quantities
47
EC-Fan Assembly
49
Compressor Plenum Assembly Numbers, Weights and Size
49
Compressor Plenum Parts Identification
50
6.2.2 Assemble Plenum Rear and Side Panels
51
Apply Gasket/Insulation Tape
52
Push-In Gasket to Access Screw Holes
54
Place Assembled Panels and EC Fans on Top of Unit
54
Assembled Panels on Top of Unit
55
EC-Fan Assembly Positioned for Lifting
56
Assembly in Place on the Unit
57
Attach EC-Fan Assembly to Top of Unit (6 Places)
57
Wire the EC Fans
58
EC-Fan Junction Boxes
58
Junction Box between Fans 1 and 2
59
Junction Box for Single Fan or Fan 3
60
Install Front Panels on Plenum
60
Non-Grilled and Rear-Discharge Front-Panel Assembly
61
Panel-Mounting Bracket Attachment
61
Top-Frame Assembly
62
Channel Frame Top Attachment
63
Rear-Discharge Plenum Top Frame Attachment to Sides
64
Non-Grilled Plenum Top Frame Attachment to Sides
65
Channel Frame Bottom Attachment
66
Non-Grilled Plenum Plenum-Brace Attachment
67
Rear-Discharge Top-Panel Attachment
68
Rear-Discharge Front-Panel Attachment
69
Non-Grilled Front-Panel Attachment
70
Front-Discharge Front-Panel Assembly
71
Front-Discharge Front-Panel Attachment
71
Front-Discharge Top-Panel Attachment
72
7 Checklist for Completed Installation
73
Moving and Placing Equipment
73
Electrical Installation Checks
73
Piping Installation Checks
73
8 Initial Start-Up Checks and Commissioning Procedure for Warranty Inspection
75
9 Troubleshooting
77
Blower Troubleshooting
77
Chilled Water Troubleshooting
78
Humidifier—Infrared Troubleshooting
78
Reheat Troubleshooting
79
10 Maintenance
81
Filters
82
To Adjust the Switch
82
Blower Drive System—Ec Fans
83
Fan Assembly Troubleshooting
84
Fan Impellers and Bearings Maintenance
84
Protective Features
84
EC-Fan Fault Conditions
85
EC-Fan High-Voltage Tests
86
EC-Fan Alarm Contact Tests
87
EC-Fan Low-Voltage Tests
87
Hardware and Tools Required
88
Removing EC Fans from Downflow Units
88
To Remove an EC Fan Module
88
Humidifier Pan Removal
89
Jack Placement to Support EC Fan Module
90
Hardware Removal
91
Slide EC Fan out of the Unit
92
Removing EC Fans from Upflow Units
93
Bolts, Washers and Spacers on EC-Fan Assembly (6 Places)
95
Blower Drive System—Forward-Curved Blowers
96
EC-Fan Assembly Moved Onto Lifting Device
96
Belt Inspection
97
Blower Motor Lubrication
97
Electronic Variable Speed Drive - Inverter
97
To Removing VSD from the Unit
97
Infrared Humidifier Maintenance
98
Cleaning Humidifier Pan and Float Switch
98
Correct Float Switch Orientation
99
Changing Humidifier Lamps
99
Infrared Humidifier Lamps
100
Condensate Pump
100
To Maintain the Condensate Pump
100
Condensate-Drain and Condensate-Pump System Maintenance
100
Facility Fluid and Piping Maintenance for Water and Glycol Systems
101
11 Preventive Maintenance Checklist
103
Blower Section (Forward-Curved)
104
Reheat
104
Infrared Humidifier
104
Appendices
107
Appendix A: Technical Support and Contacts
107
Submittal-Drawings Contents
109
Appendix B: Submittal Drawings
109
Primary Connection Locations
111
Front of Unit
111
Unit Piping Connection Locations
112
Unit Field Piping Locations
112
Plenum Field Piping Locations
112
Optional Plenum Reheat Schematics
112
Floorstand & Floor Planning Dimensional Data
114
Plenum Dimensional Data
131
Unit to Unit Network Connections
150
4
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Vertiv Liebert CW Series Specifications
General
Brand
Vertiv
Model
Liebert CW Series
Category
UPS
Language
English
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