Vertiv NetXtend Flex 20 - ECU Control of the Heat Exchanger Thermal Components (+24 Vdc and -48 Vdc ECU); Enclosure Temperature Sensors; Fan Speed Control Scheme

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Table of Contents

Admonishments Used in this Document6
Important Safety Instructions7
- Safety Precautions Definitions7
- General Safety Precautions7
  - You Must Follow Approved Safety Procedures8
- Voltages8
  - AC Input Voltages8
  - DC Output and Battery Voltages8
- Battery8
- Specific Safety Precautions10
- Personal Protective Equipment (PPE)13
- Hazardous Voltage13
- Handling Equipment Containing Static Sensitive Components13
- Maintenance and Replacement Procedures13
Static Warning14
About this Document15
- Purpose15
- Additional Information15
Description16
- Application16
- Physical Specifications16
- Standards Compliance16
- Enclosure Features and Options23
Preparation and Precautions29
- Installation Overview29
- Tools and Test Equipment29
- General Safety and Precautions30
Opening and Closing the Enclosure Doors32
- Available Latch Types32
- Opening a Door32
  - Procedure32
- Closing a Door33
  - Procedure33
Site Selection34
Transportation and Storage35
Enclosure Placement36
- Installing a Concrete Pad36
  - Procedure49
- Unpacking the Enclosure50
- Lifting Preparation50
  - Equipment Required:50
- Mounting Preparation52
  - Procedure52
Pad Mounting55
- Procedure55
OSP Cables63
- General63
- Installing OSP Cables (Copper and Fiber)63
- Sealing Cable Entries69
  - Procedure69
Protection72
- M307 Protection Field Install75
  - Procedure75
AC Power84
- Safety Precautions84
- Enclosure AC Schematic84
- Grounding the Enclosure84
  - Ground Bar Locations84
    - Procedure85
- AC Input Connections85
Installing and Connecting Batteries100
- Safety Precautions100
- General100
- Installing Batteries101
  - Procedure101
- Wiring Batteries108
  - -48Vdc Systems108
    - Procedure108
  - +24Vdc Systems110
    - Procedure110
Alarm Wiring112
- Alarm Wiring (same information for both single and dual bay documents)112
Climate Control Options113
- Heat Exchangers113
- Thermoelectric Coolers (TEC)131
- Fan Filter Assembly144
- Air Conditioners153
  - Environmental Controls153
  - User Interface153
Maintenance and Replacement Procedures157
- Battery Maintenance (+24Vdc and -48Vdc enclosures)157
  - Procedure157
- Filter Maintenance157
- Fan Filter Assembly - Standard Filter Replacement158
  - You Will Need-158
  - Replacing the Filter-158
    - Procedure158
- Fan Filter Assembly - Hydrophobic Filter Replacement159
  - You Will Need –159
  - Replacing the Filter –159
    - Procedure159
- Fan Filter Assembly - Fan Replacement160
  - You Will Need –160
  - Replacing a Fan –161
    - Procedure161
- Heat Exchanger - Fan Replacement163
- Thermoelectric Cooler - Fan Replacement170
  - You Will Need –170
  - Replacing an Internal or External TEC Fan –170
    - Procedure170
- ECU Replacement174
When Field Replacement175
- Cabinet Identification175
Accessories and Replacements176
DC Power, Outdoor Enclosure & Service Contacts187

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