Vertiv CoolChip CDU 600 Operation And Maintenance Manual
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Vertiv CoolChip CDU 600 Operation And Maintenance Manual

Vertiv CoolChip CDU 600 Operation And Maintenance Manual

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CoolChip CDU 600
Operation and Maintenance Guide

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Summary of Contents for Vertiv CoolChip CDU 600

  • Page 1 CoolChip CDU 600 Operation and Maintenance Guide...
  • Page 2 Guide. The products covered by this instruction manual are manufactured and/or sold by Vertiv. This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use, or disclosure of it without the written permission of Vertiv is strictly prohibited.

  • Page 3: Table Of Contents

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide TABLE OF CONTENTS 1 Important Safety Information 1.1 General 1.2 Installation/Handling 1.3 Application 1.4 Electrical Connection 1.5 Replacement Parts 1.6 Waste Disposal 1.7 Documentation 2 Agency 2.1 Product Standards and Approvals 2.2 ROHS 3 Compliance 3 Product Description 3.1 General...
  • Page 4 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.6 Troubleshooting Alarms 5 CANbus Communication Troubleshooting 5.1 Temperature Sensor Graph 5.2 Manual Operation of Cooling Valve 5.3 Group Control 5.3.1 Group Control—Network Cabling 5.3.2 Group Control—Network Termination Resistors 5.3.3 Group Control—Network Addresses 5.3.4 Group Control—Start Sequence from Power Up...

  • Page 5: Important Safety Information

    1 Important Safety Information HESE NSTRUCTIONS This manual contains important instructions that should be followed during operation and maintenance of the Vertiv™ CoolChip CDU 600. WARNING! Arc flash and electric shock hazard. Can cause serious injury or death. Building and equipment damage may also result.
  • Page 6 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide WARNING! Risk of improper wire sizing/rating and loose electrical connections causing overheated wire and electrical connection terminals resulting in smoke or fire. Can cause serious injury or death. Building and equipment damage may also result. Use correctly sized copper wire only and verify that all electrical connections are tight before turning power On.
  • Page 7 Water leakage can result in severe property damage and loss of critical data center equipment. Do not locate directly above any equipment that could sustain water damage. Vertiv recommends installing monitored leak detection equipment for the unit and supply return lines. NOTICE Risk of piping system corrosion and freezing fluids.

  • Page 8: General

    Adhere to all safety, installation, operation, and maintenance instructions. Any work on or use of the equipment should be carried out and/or supervised by personnel trained and qualified to work on this type of equipment by Vertiv. This product is designed to minimize all potential hazards by restricting access through unit casings, doors and covers while equipment is operational.

  • Page 9: Installation/Handling

    1.3 Application This product is for indoor use only and must be used only for the application it was designed for in consultation with Vertiv. This product must not be used in a hazardous environment.

  • Page 10: Electrical Connection

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide The flow sensor is for indication only, it is not used for any control or alarm functions nor should it be depended on for consequential actions. Differential pressure is the principle means of PQ control for both a single unit and in group operation.

  • Page 11: Waste Disposal

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide The use of incorrect replacement parts may affect the operation or reliability of the unit and invalidate any warranty. 1.6 Waste Disposal Any waste or single use materials must be disposed of in a responsible manner and in strict adherence to local and national environmental regulations.
  • Page 12 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. 1 Important Safety Information...

  • Page 13: Agency

    Pressure Equipment directive 2014/68/EU. As manufactured, Vertiv products are designed to comply with an IP21 rating. This product is in conformance with UL1995. 2.2 ROHS 3 Compliance Vertiv certifies that this product manufactured and supplied by Vertiv is fully RoHS compliant in accordance with EU RoHS Directive EU 2015/863. 2 Agency...
  • Page 14 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. 2 Agency...

  • Page 15: Product Description

    3 Product Description 3.1 General This document describes the performance, possible configurations, application and specification of the CoolChip CDU 600.. The CDU 600 contains a secondary closed loop circuit that provides a supply of cooling fluid to equipment based on differential pressure., either through indirect cooling (rack mounted rear door heat exchangers) or direct cooling (cold plates...

  • Page 16: Product Views

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 3.2 Product Views NOTE: These model images are for reference only. Figure 3.1 Front View CDU 600 (Doors, Roof, and Side Panels Removed) Proprietary and Confidential ©2025 Vertiv Group Corp. 3 Product Description...
  • Page 17 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 3.2 Rear View of CDU 600 (with Bottom Exit and Secondary Tails) 3 Product Description Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 18 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. 3 Product Description...

  • Page 19: Operation

    4 Operation 4.1 Controller Overview The CoolChip CDU 600 controller is designed to monitor and control the supply of cooling fluid to IT equipment in unattended data center environments. Secondary circuit cooling fluid is closely controlled for a defined temperature and differential pressure for optimum heat management.

  • Page 20: Main Menu

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.1 Control System Home Screen 4.2.2 Main Menu The Main Menu screen displays submenus for an increased level of information and modification of some parameters. NOTE: Some submenus may not be visible if the user has not logged in. Visibility will also depend on the login access level used.

  • Page 21: Status Screen

    4.2.3 Status Screen The Status screen displays information on the operation condition of the CoolChip CDU 600. This information is view only. NOTE: Information is not given for options that have not been configured. For example, if the primary filter is not fitted, then PS3, PS4, and Filter Differential Pressure will show -101.
  • Page 22 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.3 Control System Status Screen There are six information pages in the Status screen. To navigate between pages, click or tap the page number at the bottom of the screen. Table 4.1 below through Table 4.7 on page 21 provides the details for the statuses listed on each page.
  • Page 23 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.1 Status Pages Details Page 1 (continued) Status Description ____ C° ____ C° Secondary Return Temperature T2 ____ C° Secondary Return Temperature T4 ____ C° Table 4.2 Status Pages Details Page 2...
  • Page 24 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.4 Status Pages Details Page 4 Status Description Pump 1 Hours Run ___ Hrs Pump 2 Hours Run ___ Hrs Valve Runtime 0 to 25% ___ Hrs Valve Runtime 26 to 50%...
  • Page 25 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.6 Status Pages Details Page 6 Mode DP Bar Flow Rate Pump Speed Pump Speee T2 °C Cooling Alarm Lead Demand % Standby/Online 0.00 Standby/Online 0.00 Standby/Online 0.00 Standby/Online 0.00 Standby/Online 0.00...

  • Page 26: Data Curves Screen (Real Time Update)

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.2.4 Data Curves Screen (Real Time Update) The Data Curves screen shows a graphic representation of Cooling (Control Valve) Demand and Secondary Supply Temperature T2. • Red traces cooling (Control Valve) •...

  • Page 27: Alarm Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.2.5 Alarm Screen The Alarm screen is used to view new or active alarms and to acknowledge these events. Refer to Troubleshooting Alarms page 51 for a full list of alarms and further information.

  • Page 28: Login Screen

    Figure 4.6 Control System Login Screen Login codes are available upon request from Vertiv. Entering an invalid code will result in an Access Denied message. After you are logged in, the Logout icon will replace the Login icon. See Figure 4.2 on page 17 .

  • Page 29: Setup Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.2.7 Setup Screen The Setup screen is visible after logging in. Normally, you will not require to use the Setup screen because items modified here are set at the factory or during commissioning. There may be times you may need to make adjustments following a site upgrade.
  • Page 30 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.10 Setup Date and Time Title Description Default Range Unit Date Adjust Date — dd/mm/y9y — dd/mm/yyyy P021 Date Format Select preferred format dd/mm/yyyy mm/dd/yyyy — yyyy/mm/dd Time Adjust time (24 hour clock) —...
  • Page 31 0.0.0.0 Configurable — P066 Alternative DNS Server Set DNS address 0.0.0.0 Configurable — Refer to the Vertiv IP Communications Guide for further information on TCP/IP and Ethernet services, 10043575MAN_ENG, Rev B. Table 4.15 Setup Modbus Title Description Default Range Unit P070...
  • Page 32 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.16 Setup BACnet Title Description Default Range Unit Disabled, IP—Port A Set required protocol type (and P074 Protocol Diabled IP—Port B — physical communication port) MSTP PO75 Instance Number Set Device Instance Number Based on Serial No.

  • Page 33: Configuration Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.2.8 Configuration Screen The Configuration screen is used to set specific parameters and control functions. Figure 4.8 Control System Configuration Screen NOTE: Parameter IDs shown in italics below are only accessible with the Engineer login code.
  • Page 34 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.18 Configuration—Filling (continued) Title Description Default Range Unit All CDUs fill when any one CDU activates fill pump P108 Delta Load Drop in Load 0 to 500 P109 Delta Load Period...
  • Page 35 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.19 Configuration—Pump Control (continued) Title Description Default Range Unit mode following group failover Set number of inverter fault P218 Fault Reset Attempts 0 to 10 — reset attempts P219 Fault Reset Period...
  • Page 36 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.21 Configuration—Primary Title Description Default Range Unit Time delay prior to low flow P401 Pri. Flow Delay 1 to 120 mins alarm P402 Pri. Low Temp Setpoint Low temp alarm threshold 2 to 40 °C...
  • Page 37 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.25 Configuration—Sensors Title Description Default Range Unit Secondary T2 Temperature Alarm threshold T2a/b/c P801 0.1 to 10 °C Differential temperature differential Time delay before T2a/b/c P802 Secondary T2 Period 0 to 120...

  • Page 38: Service Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.27 Configuration—Coolant Title Description Default Range Unit Water Secondary Loop Coolant Set secondary loop coolant P1101 Water — Type type PG25 Water P1102 Primary Loop Coolant Type Set primary loop coolant type Water —...
  • Page 39 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.28 Service—Fill Pump Request Option Description The fill pump function is used only during commissioning. This allows the fill pumps to run without any time limit. Fill pump will switch OFF automatically when the unit reaches required static pressure or when reservoir tank is full.
  • Page 40 Overrides allows manual control of some functions of the unit for a limited time period while running an automatic model for troubleshooting. See SL:-07625 CoolChip CDU 600 Installation and Commissioning for additional information. If an operator issues an override while the CDU is not in automatic mode, the override is ignored and the value will be automatically set back to default.

  • Page 41: Diagnostics Screen

    Full Manual control provides manual control of all functions of the unit for a limited time period. Selection causes the unit to switch OFF with the controller in dumb mode. See SL-7625 CoolChip CDU 600 Installation and Commissioning for more information.
  • Page 42 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.10 Control System Diagnositics Screen Table 4.36 I/O Diagnostics—Universal Inputs 1 to 8 Description ADC Value Electrical Processed UI01 Secondary Return Pressure PS1a 0.00 mA 0.00 bar UI02 Secondary Return Pressure PS1b 0.00 mA...

  • Page 43: Group Control Status Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.37 I/O Diagnostics—Universal Inputs 9 to 16 (continued) Description ADC Value Electrical Processed UI14 Ambient Sensor – Temperature T3 0.00 ohms 0.00 °C UI15 Primary Return Temp. T5 0.00 ohms 0.00 °C...

  • Page 44: Ethernet And Ip Communication Status Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.11 Group Control Status Screen 4.2.12 Ethernet and IP Communication Status Screen The Ethernet and IP Communication Status screen provides information on Ethernet link, speed, and duplex status along with IPv4 address details and message counts for Ethernet interface A and B. See Figure 4.12 on the facing page . Access this screen from the home page by selecting the IP address as shown in Figure 4.2 on page 17 .

  • Page 45: Calibration Screen

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.12 Ethernet and IP Communication Status 4.2.13 Calibration Screen To calibrate the touchscreen, press the screen 20 times within a 20 second interval. The Calibration screen will then open. Follow the on screen instructions to complete calibration.

  • Page 46: Automatic Operation

    4.3.1 Primary Circuit Operation The primary fluid temperature is monitored at the inlet to the CoolChip CDU 600 cabinet. The nominal cooling performance of the CDU has been calculated on a chilled water temperature between 4°C and 10°C (40°F and 50°F).

  • Page 47: Secondary Circuit Operation

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide • The high and low temperature alarms are ignored for a default 20 minute period on startup to allow the system time to settle without generating nuisance alarms. The temperature PID control loop is operational from when the Start/Stop button is pressed and the pump has ramped up to speed.
  • Page 48 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide • If the differential pressure or flow drops below 50% of setpoint, then the unit will stop and an A40— Insufficient Fluid alarm is generated. This is a latched alarm and it will be impossible to restart the unit until the event has been manually cleared.
  • Page 49 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.15 Fill Pressure and Level Flow Chart (Initial Start) 4 Operation Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 50 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.16 Fill Pressure and Level Flow Chart at Initial Start Proprietary and Confidential ©2025 Vertiv Group Corp. 4 Operation...
  • Page 51 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.17 Fluid Level Management Flow Chart When Running Secondary Supply Temperature Control Logic The secondary fluid temperature is monitored close to the secondary circuit supply connection Three temperature sensors are positioned here to give extended component redundancy (T2a, T2b, and T2c). The controller takes an average between all 3 readings as its input value.

  • Page 52: Temperature Control Loop

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Fixed SP Control Mode The secondary temperature should correspond to the desired setpoint. The default fixed setpoint is 18°C (65°F) and is used by the control loop to regulate the primary fluid cooling valve position to achieve and maintain the setpoint. The cooling valve position can be monitored on the Home screen or page 1 of the Status screen (Cooling Demand/Feedback).

  • Page 53: Pid Control

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 4.4.2 PID Control PID control is generally the preferred option for systems that see high or suddenly changing heat loads. Set the Proportional Band to 1.67X the Proportional Band sitting at which the system became unstable.
  • Page 54 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.19 Control Screen Active Alarms Select the alarm to view a description of the alarm. Some alarms self-clear if the condition is transient. For example, a temperature goes over an alarm threshold and then comes back to a healthy condition or the fault has been rectified such as when a faulty sensor has been replaced.

  • Page 55: Troubleshooting Alarms

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 4.20 Control Screen Alarm Identification 4.6 Troubleshooting Alarms Alarms are events which may cause the unit to shutdown and should be immediately investigated. IMPORTANT! Table 4.41 on the next page provides the full list of all alarms. However not all are necessarily active, depending on the unit configuration.
  • Page 56 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.41 Alarm Identification and Severity Level Code Description Severity Self-Clear Latching Shutdown Shutdown ---- No Display — — — — ü Detail: Display not illuminated. Power failure on display board or controller I/O board.
  • Page 57 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.41 Alarm Identification and Severity Level (continued) Code Description Severity Self-Clear Latching Shutdown Shutdown PS1a Secondary Pressure Sensor — — — ü Fault Reading from Secondary return pressure sensor PS1a (Fill pressure) is outside the normal range of -1 to 8 bar (-15 to 116 PSI) and min/max Detail: values only will be displayed.
  • Page 58 Detail: into fault condition a second time (default), after first attempting a fault reset. Pump 1 will then run. Action: Note any fault code on the inverter display and contact Vertiv for more information/corrective action. Pump P1 Inverter — —...
  • Page 59 Check operation of cooling valve. Check primary fluid supply flow rate. Ensure system heat load does not exceed the CDU 600 capacity— Action: check that primary flow is sufficient for heat load. Refer to CoolChip CDU 600 Application and Planning Guide. A29* Primary Filter Dirty —...
  • Page 60 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.41 Alarm Identification and Severity Level (continued) Code Description Severity Self-Clear Latching Shutdown Shutdown Action: Check operation of cooling valve. Leak - Unit — — ü (or not) ü Detail: Level switch in cabinet drip tray has detected a substantial fluid leak. Event may be set for Alarm Only (default), or Alarm + Unit Shutdown.
  • Page 61 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.41 Alarm Identification and Severity Level (continued) Code Description Severity Self-Clear Latching Shutdown Shutdown (refer to A43 for detail) will be raised and unit will shutdown after a 1 second delay.
  • Page 62 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Table 4.41 Alarm Identification and Severity Level (continued) Code Description Severity Self-Clear Latching Shutdown Shutdown Action: Use external fluid source, engage filling wand & pump P5 to refill the reservoir tank Reservoir Tank Empty —...

  • Page 63: Canbus Communication Troubleshooting

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 5 CANbus Communication Troubleshooting The CANbus network health is indicated on the Home screen via the CANbus status icon. Figure 5.1 CANbus Status Icon When the icon indicates a network fault (red), view the network status screens to determine which devices on the network are not communicating.

  • Page 64: Manual Operation Of Cooling Valve

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 5.2 Manual Operation of Cooling Valve If the control valve actuator completely fails, the secondary supply temperature can be controlled by manually overriding the valve actuator as detailed below. IMPORTANT! Disconnect the valve actuator from the control panel first. Unplug the 4-way connector, terminals 9 to 12 from socket SK8.

  • Page 65: Group Control

    5.3 Group Control This section to be considered only if there is more than one CoolChip CDU 600 unit installed pers system. Groups of up to 16 CoolChip CDU 600s can be connected using a high speed, robust twisted pair CANbus network in order to provide coordinated control in larger installations and N + X redundancy.

  • Page 66: Group Control-Network Termination Resistors

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Units become self organizing when in group control. The lead unit is automatically selected which coordinates the running state of each unit in group based on: • Configured level of redundancy •...

  • Page 67: Group Control-Network Addresses

    Figure 6.5 CANbus Network Termination Resistors 5.3.3 Group Control—Network Addresses Each CoolChip CDU 600 must be given a unique address. A CDU 600 network address should be allocated to each unit in ascending order, starting from 1. The CDU 600 network address is configured via Setup screen > Group Control > Unit Address (P081). Configure each CDU 600 so that it is aware of the other CDU 600 devices on the network: Proprietary and Confidential ©2025 Vertiv Group Corp.

  • Page 68: Group Control-Start Sequence From Power Up

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Enter the total number of CDU 600 units in the networked system via Setup screen > Group Control > Number of • Units in Group (P082) Enter the number of run units via Setup screen > Group Control > Number of Run Units (P083) •...

  • Page 69: Group Control-Failure Modes

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide The failure offset is applicable only when a group of 3 or more CDU 600 units are configured in N (that is all CDU 600s set to run, with no CDU 600 redundancy) and they are configured to spin up the standby pump when an CDU 600 failure/power off occurs.
  • Page 70 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 6.7 Lead Communication Failure In the event of a sensor failure, all sensors related to control (PS1, PS2 and T2) are redundant at the CDU 600 level, so a single sensor failure will not impact the operation or the status of the CDU 600, So, if the lead CDU 600 does have a sensor failure it will not result in a change of lead.

  • Page 71: Maintenance

    Water/coolant fluid can result in fluid leakage, severe property damage and loss of critical data center equipment. Do not locate unit directly above any equipment that could sustain water damage. Vertiv recommends installing monitored leak detection equipment for the unit and supply and return lines.

  • Page 72: Planned Preventative Maintenance

    • Primary circuit: The CoolChip CDU 600 is designed for use with a facility supply of water or up to 20% glycol/water. A 20% glycol concentration will give protection to approximately -9°C (16°F). If a higher concentration of glycol is used, then the cooling capacity of the unit may have to be de-rated.

  • Page 73: General Settings

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 6.2.3 General Settings • Record unit serial number on maintenance check lists • Record values from controller display home page 6.2.4 Controller Checks These checks look at setpoints, alarm actions, and group control.

  • Page 74: Fluid Checks

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide 6.2.6 Fluid Checks • Take secondary circuit fluid sample as directed by fluid management partner and send to approved lab for analysis and report recommendations. • Take action on any previous fluid report recommendations.
  • Page 75 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 7.1 Servicing the Primary Filter—Section View from Left Side of Unit 6 Maintenance Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 76 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. 6 Maintenance...

  • Page 77: Secondary Filter Service (If Fitted)

    IMPORTANT! If the control panel does not move, then the transit retaining bolts were not removed during the installation process. Refer to SL-07625 CoolChip CDU 600 Installation and Commissioning. To remove these bolts now requires the unit to be shutdown and power removed by using the isolator/disconnect switch to open the power section door of the control panel and gain access to these bolts.

  • Page 78: Unit Draining

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Figure 8.2 Servicing Secondary Filters 6. Replacement is the reverse of the procedure. Ensure that the drain is closed before opening valves A and B. Ensure that additional fluid is available to replenish the makeup reservoir if necessary.
  • Page 79 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Primary circuit drain valve locations: • 1 on underside of filter housing (if fitted) • 1 on supply tail pipe (top or bottom exit) • 1 on return tail pipe (top of bottom exit) Secondary circuit drain valve locations: •...
  • Page 80 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. 7 Secondary Filter Service (if Fitted)

  • Page 81: Appendices

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Appendices Appendix A: Technical Support and Contacts A.1 Technical Support/Service in the United States Vertiv Group Corporation 24x7 dispatch of technicians for all products. 1-800-543-2378 Liebert® Thermal Management Products 1-800-543-2378 Liebert® Channel Products 1-800-222-5877 Liebert®...
  • Page 82 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp. Appendices...

  • Page 83: Appendix B: Piping Schematic

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Appendix B: Piping Schematic Figure B.1 Piping Schematic Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 84 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp.

  • Page 85: Appendix C: Notes

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Appendix C: Notes Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 86 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp.

  • Page 87: Appendix D: Disposal Procedure

    Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide Appendix D: Disposal Procedure Waste materials must be disposed of in a responsible manner in line with environmental regulations. Decommissioning and disposal of this product should be undertaken by qualified personnel in adherence to local and national safety regulations, particularly for protection of lungs, eyes, and skin from chemicals, dust etc.
  • Page 88 Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide This page intentionally left blank Proprietary and Confidential ©2025 Vertiv Group Corp.
  • Page 90 Vertiv.com | Vertiv Headquarters, 505 N Cleveland Ave, Westerville, OH 43082 USA ©2025 Vertiv Group Corp. All rights reserved. Vertiv™ and the Vertiv logo are trademarks or registered trademarks of Vertiv Group Corp. All other names and logos referred to are trade names, trademarks or registered trademarks of their respective owners. While every precaution has been taken to ensure accuracy and completeness here, Vertiv Group Corp.

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