Page 1
Liebert® XDU450 Coolant Distribution Unit Installation and Commissioning Guide...
Page 2
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
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide TABLE OF CONTENTS 1 Important Safety Information 1.1 General 1.2 Installation/Handling 1.3 Application 1.4 Warranty 1.5 Electrical Connection 1.6 Replacement Parts 1.7 Waste Disposal 1.8 Documentation 2 Agency 2.1 Product Standards and Approvals 2.2 ROHS 2 Compliance...
Page 5
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. Verify with a voltmeter that power is Off. The Vertiv™ Liebert® iCOM™ controller does not isolate power from the unit, even in the “Unit Off” mode. Some internal components still require and receive power even during the “Unit Off”...
Page 6
Vertiv™ Liebert® XDU450 Installation and Commissioning 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
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide CAUTION: Risk of improper piping installation, leak checking, fluid chemistry and fluid maintenance. Can cause injury. Building and equipment damage may also result. Installation and service of this equipment should be done only by qualified personnel who have been specially-trained in the installation of air- conditioning equipment and who are wearing appropriate, OSHA-approved PPE.
Page 8
Water leakage can result in 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. 1 Important Safety Information...
Page 9
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide NOTICE Risk of a catastrophic water circuit rupture. Can cause expensive building and equipment damage. Install an overflow drain pan under the unit with a monitored leak detection system in the pan and shutoff valves in the supply and return water lines that automatically close if water is detected by the leak detection system.
Page 10
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. Verify with a voltmeter that power is Off. The Vertiv™ Liebert® iCOM™ controller does not isolate power from the unit, even in the “Unit Off” mode. Some internal components still require and receive power even during the “Unit Off”...
Page 11
Any parts replaced during maintenance or servicing must be the same specification as those being replaced and should only be obtained from Vertiv. The use of incorrect replacement parts may affect the operation or reliability of the unit and invalidate any warranty. Please contact your local Vertiv representative for Vertiv engineered parts, check https://www.Vertiv.com/en-us/support/ or call 1- 800-543-2778.
Page 13
2.2 ROHS 2 Compliance Vertiv certifies that all products manufactured and supplied by Vertiv are fully RoHS compliant in accordance with EU RoHS Directives 2002/95/EC – 2011/65/EU and the Council of 8 June 2011 directives, unless specified otherwise.
Page 15
3 Product Description 3.1 General This document describes the physical and electrical characteristics of the Vertiv™ Liebert® XDU450 for installation and commissioning purposes. The Liebert® XDU450 contains a Secondary closed loop circuit that provides a supply of cooling liquid to IT equipment, either through indirect cooling (e.g.
Page 16
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Table 3.2 Liebert® XDU450 Model Number Definitions (continued) Digit Description 0 = None Digit 12, Primary Filtration 1 = Fitted (500µ) 0 = None (included 6 bar relief) Digit 13, Secondary Filtration 2 = Fitted (50µ) (includes 3 bar relief)
Page 20
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Item Description Auto air vent (fitted to each filter housing) Pressure relief valve Optional secondary filters Filter/pump isolation valves By-pass shut-off valve (closed to convert 3-way primary control valve to 2-way) Primary cooling valve (3-way with manual override)
Page 21
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide 4 Technical Data 4.1 General With Manifold and With Manifold Extended Cabinet Standard Cabinet Standard Cabinet with ATS Extended Cabinet and ATS Table 4.1 Unit Dimensions Width Depth Height Base Unit Standard cabinet 23.6...
Page 22
It will, however, assume the corrosivity of the coolant fluid from which it is prepared and may become increasingly corrosive with use if not properly inhibited. Vertiv recommends installing a monitored fluid-detection system that is wired to activate the automatic-closure of field-installed coolant-fluid supply and return shut-off valves to reduce the amount of coolant-fluid leakage and consequential equipment and building damage.
Page 23
Water leakage can result in 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. NOTICE Risk of a catastrophic water circuit rupture.
Page 24
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide 4.4 Electrical Data Table 4.5 Supported Power Supplies Voltage 208* 16.8 A 30 A 50 A 480** 15.0 A 30 A 40 A Installed load 12.5 kVA (max.) Typical power 7.5 kW *Tolerance on three phase power is 208 V (+/- 5%), 60 Hz (+/- 3 Hz) **Tolerance on three phase power is 480 V (+/- 5%) 60 Hz (+/- 3 Hz) 4.5 Noise...
Page 25
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide 5 Installation 5.1 Unloading and Positioning WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause serious injury or death. Building and equipment damage may also result. Installation and service of this equipment should be done only by qualified personnel who have been specially-trained in the installation of air-conditioning equipment and who are wearing appropriate, OSHA-approved PPE.
Page 26
Risk of improper storage can cause unit damage. Keep the unit upright, indoors and protected from dampness, freezing temperatures and contact damage. On arrival at site, the Vertiv™ Liebert® XDU450 crate should be placed on a level solid surface to safely unload the unit from the crate.
Page 27
5.2 Piping The Vertiv™ Liebert® XDU450 is intended to be positioned on a smooth, level floor, ideally a raised floor (if bottom exit pipework) with at least 12 inches (300 mm) clear under floor space for a manifold system or hose runs to IT equipment. If the Liebert®...
Page 28
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Optional 2 inch BSP or NPT threaded, or other types of adapters can be provided if specified at the time of order. The Vertiv™ Liebert® XDU450 Primary connections are located at the rear of the unit and can be configured for bottom or top exit from the cabinet as illustrated, which should be specified at time of order.
Page 29
The Vertiv™ Liebert® XDU450 Secondary connections are 2.5 inch (DN65) sanitary flanges (to BS4825 Pt.3 or equivalent with 3 inch (77.5 mm) diameter flange). The flanges are fitted with stainless steel blanking caps to ensure pipework remains contaminant free during transit, which will need to be removed for installation.
Page 31
Figure 5.4 Rear Section Showing Primary Facility and Secondary Pipe Connection Locations Plan view of Vertiv™ Liebert® XDU450 rear section showing Primary Facility and Secondary circuit pipe connection locations. Positions will be the same for both Bottom and Top Exit pipework.
Page 32
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Figure 5.5 Internal Piping Detail Item Description Size Second circuit return from heat load 2.5 inch (DN65) sanitary flanges Secondary circuit supply to heat load 2.5 inch (DN65) sanitary flanges Facility supply fluid to CDU...
Page 33
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. Verify with a voltmeter that power is Off. Vertiv™ Liebert® iCOM™ controller does not isolate power from the unit, even in the “Unit Off” mode. Some internal components still require and receive power even during the “Unit Off”...
Page 34
RF Earth Connection – For EMC compliance, two M6 earth studs are provided at the rear of the cabinet (one at the top and one at the bottom) for connection of a braided EMC earth strap at either point. The Vertiv™ Liebert® XDU450 units are supplied configured for the required voltage option stated in Electrical Data page 20 .
Page 35
– configurable as normally open (default) or normally closed. A single room temperature and RH sensor is provided as standard on the Vertiv™ Liebert® XDU450, fitted to the cabinet front door panel behind a ventilation grille to monitor the room temperature and humidity. The temperature and humidity sensor must be installed in areas where conditions are representative of the space conditioned by the Liebert®...
Page 36
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Optional BACnet communications is also available if specified. BACnet IP– Ethernet 10/100 • Ethernet RJ45 connection on unit mounted BACnet gateway • Cable provided by others for connection to the BMS. No special considerations are required when using Cat5e/Cat6 for connection between the unit and BMS which is not greater than 328ft (100m).
Page 37
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide 5.3.4 Group Control Figure 5.8 Vertiv™ Liebert® XDU450 Group Control (max number of units in a single group is 8) For larger and N+x redundancy installations, Liebert® XDU450s can be connected using CANbus high speed, robust twisted pair.
Page 38
2. Check that the coolant has been delivered to site. 3. Check any required biocide and corrosion inhibitors have been supplied. 4. Ensure that site contact is aware of the location of Vertiv™ Liebert® XDU450 power supply fuse board/circuit breakers.
Page 39
Customer must provide earth ground to unit, per NEC, CEC and local codes, as applicable. Verify with a voltmeter that power is Off. Vertiv™ Liebert® iCOM™ controller does not isolate power from the unit, even in the “Unit Off” mode. Some internal components still require and receive power even during the “Unit Off”...
Page 40
Confirm installed Vertiv™ Liebert® XDU450 model is suitable for site supply voltage. 2. Power wiring connections completed between the remote and unit mounted disconnect switch.
Page 41
The Vertiv™ Liebert® XDU450 is designed for use with a Primary (facility) supply of plain water or up to 20% glycol/water from a site chilled water ring main or a dedicated chiller. A 20% glycol concentration will give frost protection to approx. 16 °F (-9 °C).
Page 42
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide It is the responsibility of the installer to make sure the primary water is filtered to a level of at least 500 micron, if the optional filter internal to the Liebert® XDU450 was not specified at time of order.
Page 43
Failure to use proper water treatment can result in decreased system performance and reliability due to corrosion, scaling, fouling and microbiological growth and may invalidate the unit warranty. Suitable Secondary circuit heat transfer fluid can be provided by the Vertiv™ Liebert® XDU450 supplier on request. 5 Installation...
Page 44
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Table 5.1 Deionized Water Specification Property Value Conductivity < 15µS/0.4 in. (1 cm) 6 to 8 Table 5.2 Mineral Content Property Value < 10 µg/33.8 fl. oz. (1 L) Cadmium (Cd) < 10 µg/33.8 fl. oz. (1 L)
Page 45
8. Verify water detection is properly installed around all units (recommended). 6.1.2 Facility Water Supply Confirm Facility/Primary water supply is available prior to Vertiv™ Liebert® XDU450 installation and commissioning. If a dedicated chiller is to be utilized, ensure this has been fully commissioned at least 24 hours prior to Liebert®...
Page 46
6.1.4 Primary Circuit Filling Crack open the supply and return valves fitted in the pipework to the Vertiv™ Liebert® XDU450 unit to allow the primary circuit within the cabinet to gently fill from the chilled water supply. If the optional internal primary filter is fitted, check the filter valves are open and filter by-pass valve is closed.
Page 47
NOTE: When filling and running the Secondary circuit, the operator should be fully knowledgeable with the operation of the Vertiv™ Liebert® XDU450 – refer to the XDU450 Operating and Maintenance Guide for more information. Position container of pre-treated deionized water in front of the Liebert® XDU450.
Page 48
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide 6.3 Unit Configuration Prior to running the Vertiv™ Liebert® XDU450, the configuration should be checked to ensure the unit is set up according to the site requirements. Flow or DP control – See Configuration menu/Pump Control/Flow or DP (P201). This will control the pump speed according to the required flow rate or differential pressure.
Page 49
Once satisfied that all air has been expelled from the system and the Vertiv™ Liebert® XDU450 maximum performance has been achieved, the pump operation can be set back to automatic control. Go back into Overrides and set the pump speed(s) back to 0%, which will put the control back into automatic mode.
Page 50
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Figure 6.2 Indicator Flag Location 6.7 Full Manual Control The Full Manual Control mode can be accessed from the Service screen (when logged-on at Engineering level) and may be used when just one or more outputs need to be manually controlled in total isolation from the automatic operation of the rest of the unit.
Page 51
It will, however, assume the corrosivity of the coolant fluid from which it is prepared and may become increasingly corrosive with use if not properly inhibited. Vertiv recommends installing a monitored fluid-detection system that is wired to activate the automatic-closure of field-installed coolant-fluid supply and return shut-off valves to reduce the amount of coolant-fluid leakage and consequential equipment and building damage.
Page 52
Water leakage can result in 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. NOTICE Risk of a catastrophic water circuit rupture.
Page 53
Vertiv™ Liebert® XDU450 Installation and Commissioning 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 1-800-543-2778 Liebert® Channel Products 1-800-222-5877 Liebert®...
Page 57
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Appendix C: Warranty Details C.1 Limited Product and Service Warranty Extended warranties, service and maintenance programs are available in most locations, details available upon request. To obtain further details of limited warranty, also after sales service offerings, contact your local sales representative or technical support if you have any questions or problems during unit installation.
Page 59
D.1 Product Description General This document describes the physical and electrical characteristics of the Vertiv™ Liebert® XDU450 Automatic Transfer Switch (ATS) for Installation and Commissioning purposes. The ATS allows the Liebert® XDU450 unit to be connected to ‘A’ and ‘B’ electrical supplies. Supply ‘A’ will be the default power source, but should this supply fail for any reason, then the ATS unit will seamlessly switch over to Supply ‘B’, without any...
Page 60
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Item Description MCB for Supply 'A' PSU Supply 'A' DC control fuse Supply 'A' activated indicator MCB for Supply 'B' PSU Supply 'B' DC control fuse Supply 'B' activated indicator Figure D.2 Rear and Inner View of ATS...
Page 61
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Item Description Contractors Cable gland exit for supply to Liebert® XDU450 (cable supplied pre-fitted) Cable gland entry for Supply 'B' Technical Data Table D.1 Unit Dimensions Width Depth Height Base Unit Maximum 23.6 32.3...
Page 62
Unpacking and Positioning On arrival at site, the Vertiv™ Liebert® XDU450 ATS should be unpacked from the shipping crate and checked for any signs of external transit damage (any serious damage must be reported to manufacturer and shipper immediately, prior to installation).
Page 63
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Figure D.3 Roof Panel Removal Item Description Loosen 4 x M4 roof panel retaining screws. When the screws are released, slide the roof panel forward, then lift to free. Figure D.4 Initial ATS Installation...
Page 64
Route the 4-core flying cable, supplied with the ATS, down the back of the Vertiv™ Liebert® XDU450 electrical panel and in through the cable gland provided. Terminate this cable as normal to the Liebert® XDU450 disconnect switch (isolator) and adjacent ground (earth) terminal (refer to XDU450 Installation and Commissioning Guide for more information, if required).
Page 65
Confirm installed Vertiv™ Liebert® XDU450 model and associated ATS is suitable for site supply voltage. 2. Check that the ATS has been connected to power supply, with a minimum of 4-core 4.0mm2 (2.5mm2 for run/standby pump operation) power cable.
Page 66
Phase Failure Relay On arrival at site, the Vertiv™ Liebert® XDU450 ATS should be pre-set to suit the site voltage. However, it is recommended that prior to connection of the power supplies, the settings of the phase failure relay are checked according to the information Phase Failure Relay (DIP switch positions) below .
Page 67
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Table D.6 Voltage and DIP Switch Positions DIP Switch Positions Voltage Settings Relay Model Number 200 v K8AK-PW1 380 v K8AK-PW1 400 v K8AK-PW1 415 v K8AK-PW1 480 v K8AK-PW1 Phase Failure Relay (under/over voltage thresholds) The under and over voltage trip thresholds are supplied from the factory set to nominal values and these may require adjustment to the customer’s preference.
Page 68
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Item Description Terminal block Power indicator Relay status indicator Alarm indicator Terminal block Over-voltage knob (Over) Under-voltage knob (Under) Operating time knob (T) In order to facilitate accurate over/undervoltage trip thresholds, the DIP switches should be set to a voltage that is closest to the actual site voltage, as shown in Table D.6 on the previous page .
Page 71
Vertiv™ Liebert® XDU450 Installation and Commissioning Guide Appendix F: Disposal Information NOTE: Waste materials must be disposed of in a responsible manner in line with environmental regulations. The de-commissioning 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.
Need help?
Do you have a question about the Liebert XDU450 and is the answer not in the manual?
Questions and answers