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EC Fans—Lowering and Removing

Figure 39 Lowering EC fans into floor stand, Steps 1 through 6

B B

Z Bracket

(not present

on Liebert DS)

Remove Hex

Head Screws

Remove

Hex Head

Screws

Fan Deck

Wiring

Loop

Cut and Remove

Cable Tie Securing

Wiring Loop

Z Bracket

(not present on

Liebert DS units)

Z Bracket

(not present

on Liebert DS)

Section

Not Shown

Raise Jack

to Support

Fan

Raise Jack

to Support

Fan

Remove Middle

Panel from Front

of Unit

Remove Bottom

Panel from Front

of Unit

Remove Infrared

Humidifier

Section

Not Shown

Tabs

Detail A

Section B-B

Top View of Fan Deck

DPN002037

Page 1, Rev. 4

Jack

Location

Default Chapter3
- Table of Contents3
Important Safety Instructions11
Save These Instructions11
1 Liebert Ds Components and Nomenclature13
- Figure 1 Downflow Model Component Locations13
- Figure 2 Upflow Model Component Locations14
- Figure 3 Liebert DS Model Number Nomenclature15
2 Cooling Configurations16
3 Pre-Installation Guidelines17
- Room Preparation17
- Air Distribution-Downflow Units17
- Figure 4 Downflow Unit Ducting and Plenum Ducting17
- Air Distribution-Upflow Units18
- Figure 5 Upflow Ducting Configurations18
- Connections and System Setup19
- Operating Conditions19
4 Liebert Ds Dimensions and Weights20
- Table 1 Shipping Dimensions-Domestic and Export, Inches (MM)20
5 Equipment Inspection and Handling47
- Packaging Material47
Safety Information47
- Figure 32 Equipment Recommended for Handling Liebert DS47
- Unpacking the Unit48
- Semi-Hermetic Compressor Spring Isolation System53
- Placing the Unit on a Floor Stand53
- Figure 38 Setting the Unit on a Floor Stand53
6 Ec Fans -Lowering and Removing54
- Lowering the EC Fans into the Floor Stand54
- Figure 39 Lowering EC Fans into Floor Stand, Steps 1 through 655
- Figure 40 Lowering EC Fans into Floor Stand, Steps 7 through 956
- Removing the EC Fans57
- Figure 41 Removing the EC Fans, Steps 1 through 558
Figure 42 Removing the EC Fans, Steps 6 through 959
7 Disassembling the Liebert Lds for Transport60
- Required Equipment60
- Disassembly-Downflow Units61
  - Remove the Compressor Assembly62
  - Remove the Filter and Electric Box Assembly63
- Reassembly-Downflow Units63
  - Reconnecting Piping, Charging and Replacing Panels64
- Reassembly Checklist64
- Disassembly-Upflow Units74
  - Remove Compressor Assembly75
  - Remove Blower and Electric Box Assembly75
- Reassembly-Upflow Unit76
- Reassembly Checklist76
8 Electrical Connections86
- Figure 61 Electrical Field Connections for Upflow and Downflow Models87
- Table 47 Electrical Field Connection Descriptions88
- Variable Speed Drive89
9 Piping92
- Fluid Connections92
- Refrigeration Piping95
  - Piping Guidelines-Air-Cooled Units96
  - Scroll and Digital Scroll-Additional Oil Requirements98
- Dehydration/Leak Test and Charging Procedures for R-407C and R-2299
10 Piping Schematics104
- Figure 67 Piping Schematic-Air-Cooled, Semi-Hermetic Compressor Models104
11 Checklist for Completed Installation134
- Moving and Placing Equipment134
- Electrical134
- Piping134
- Other135
12 Initial Startup Checks and Commissioning Procedure for Warranty Inspection136
- Information for Warranty Inspection-Remove Power from Unit Disconnect137
- Startup Checks with Panels Removed and Main Disconnect off137
  - 12.2.1 Inspect and Record137
- Startup138
- Commissioning Procedure with Panels on139
13 Maintenance140
- Filters141
  - 13.1.1 Filter Replacement Procedure-Downflow Units142
  - 13.1.2 Filter Replacement Procedure-Upflow Units142
- Blower Drive System-Centrifugal Fans142
- Blower Drive System-EC Fans145
  - 13.3.1 Fan Impellers and Bearings145
  - 13.3.2 Protective Features145
- Humidifier-Infrared146
- Humidifier-Steam Generating148
- Condensate Drain and Condensate Pump Systems153
- Air-Cooled Condenser and Drycoolers154
- Reheat-Electric Reheat (Three-Stage and SCR)154
- Thermostatic Expansion Valve154
  - 13.9.1 Determine Suction Superheat154
  - 13.9.2 Adjust Superheat Setting with the TEV154
- 13.10 Compressor155
- 13.11 Compressor Replacement155
- 13.12 Facility Fluid and Piping Maintenance156
- 13.13 Paradenser-Water-Cooled Condenser156
  - 13.13.1 Cleaning Instructions157
- 13.14 Water/Glycol Control Valves157
14 Hvac Maintenance Checklist160
Compliance with European Union Directives167

Brand	Emerson
Model	Liebert DS Series
Category	Heat Pump
Language	English

Emerson Liebert DS Series User Manual

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Emerson Liebert DS Series Specifications

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