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Liebert® XDO High Heat Density Precision Air Conditioner User Manual...
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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.
Vertiv™ Liebert® XDO User Manual Table of Contents 1 Overview..............................................1 1.1. Product Introduction ......................................... 1 1.2. Product Appearance ........................................ 1 1.3. Model Nomenclature ........................................2 1.4. Main Components ........................................3 1.4.1. Evaporator ..........................................3 1.4.2. EC Fan ............................................3 1.4.3. Electronic Expansion Valve (EEV)..............................3 1.4.4.
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Vertiv™ Liebert® XDO User Manual 2.5. Installation ............................................10 2.5.1. Overall System Layout .....................................11 2.5.2. System Installation Diagram ................................11 2.6. Installation of the Unit ......................................11 2.6.1. Mechanical Parameters ..................................11 2.7. Pipe Outlet Position Size on Top Plate ..............................12 2.8. Installing the Unit ........................................12 2.8.1.
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7.2. Troubleshooting and Fault Handling of Electronic Expansion Valve ..............33 7.3. Troubleshooting and Fault Handling of Cooling System ....................34 Appendix I: Circuit Diagram of Vertiv™ Liebert® XDO ................35 Appendix II: Alarm Output Menu Table ......................36 Appendix III: List of Maintenance Inspection Items (Monthly) ............37 Appendix IV: List of Maintenance Inspection Items (Semi-annually) ..........38...
1 Overview Vertiv™ Liebert® XDO High Heat Density Precision Air Conditioner (hereafter referred as Liebert XDO). The Liebert XDO is a specially engineered unit for the applications which does not permit any unauthorized and unqualified access in the system. It must be used only by professionally trained personnel if it is placed in a shopping mall, light industry, farm or commercial environment.
1.3. Model Nomenclature Vertiv™ Liebert® XDO is defined by twelve digits, as represented in Table 1-1. Table 1-1 Liebert XDO Nomenclature Digit 1, 2 Product Model X-treme High Density Digit 3 Cooling System Horizontal Cabinet In row Installation Vertical on Rack...
Figure 1-2 Electronic Expansion Valve (EEV) 1.4.4. Filter Net Liebert XDO unit is provided with a filtration net, which is highly efficient in protecting the unit by filtering the impurities and dust in the air. 1.4.5. Dry Filter The dry filter can effectively filter the moisture and impurities generated in the long-term operation of the system to ensure the normal operation of the system.
1.4.6. Drain Pump Vertiv™ Liebert® XDO unit adopts a self-priming drainage pump with small size, low noise and high reliability; the rated voltage required for the system is 220 Vac. It also includes the idling protection and overload protection functions to ensure timely rapid discharge of condensate water.
1.7. Environmental Requirements 1.7.1. Operating Environment The operating environment of the Vertiv™ Liebert® XDO unit meets the requirements of GB4798.3-2007, as shown in Table 1-2. Table 1-2 Operating Environment Requirements Items Requirements Ambient temperature Indoor 18˚C to 40˚C, RH<60% Unit protection level...
4. All doors and windows should be fully enclosed and the gap should be as small as possible. 5. In order to ensure the normal application of Liebert XDO, it is recommended that the equipment room be equipped with a dehumidifier.
These spaces are used for regular maintenance, such as replacing filters, fans, electronic expansion valves, and maintaining electronic control boxes. Note 2: In case of a special application, consult Vertiv local representative. 2.3. Unpacking and Inspection 2.3.1.
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Direction of Fork Figure 2-3 Forklift Position to Lift the Unit While moving the indoor unit, keep the obliquity within the range of 75° to 105°, as shown in Figure 2-4. Figure 2-4 Handling Angle Vertiv™ | Liebert® XDO | User Manual...
2.3.2. Unpacking Vertiv™ Liebert® XDO cabinet is packed with wooden boxes. After moving the unit to the nearest place of final installation, unpack the unit. The unpacking procedures are as follows: 1. First remove the top cover and winding stretch film, then remove the honeycomb cardboard and foam board,...
• Installation Notes 1. Vertiv™ Liebert® XDO unit uses a ceiling-mounted method and must be installed above the heat dissipating equipment. 2. Prior to installing the unit, confirm whether the installation environment meets the requirements (refer Section 1.6...
4. System Installation Layout 2.5.1. Overall System Layout Refer to the relevant content of the overall system layout in “Vertiv™ Liebert® XDC multi-connected air conditioner main unit User Manual”. 2.5.2. System Installation Diagram Refer to the relevant content of the system installation diagram in “Vertiv™ Liebert® XDC multi-connected air conditioner main unit User Manual”.
2.8.1. Installation Location Requirements The position and spacing of the Vertiv™ Liebert® XDO terminal mounted on the ceiling are determined by the heat density of the heat dissipating cabinet. For specific spacing, please refer to the relevant drawings on site.
Figure 2-10 Unit External Installation Kit 2. Place the bracket against the front or rear panel of the Liebert XDO and ensure that the bottom edge of the bracket is aligned with the bottom of the panel. Then use the 6 cross-recessed M6 hexagonal combination bolts in the accessories...
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Figure 2-11 The Front and Rear Panels Installation 3. After fixing the panels, use lifting equipment to hoist the Vertiv™ Liebert XDO to the installation connection of the elevated building structure or ceiling, and utilize the parts provided on site to fix it. The dimensions of the lifting fixing...
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Figure 2-13 Dimensions of Fixed Lifting Holes Note 1: Prior to lifting, ensure that the lifting capacity of the lifting equipment is greater than the weight of the unit. Note 2: There are two holes on the external mounting brackets of the accessories of the unit for fixing the ropes for hoisting.
Vertiv™ Liebert® XDO unit is a ceiling-mounted air conditioner which is suspended / installed on the ceiling above the heat dissipation cabinet. After fixing the Liebert XDO, user needs to level the unit; the level of the unit bottom plate is required to be within 13 mm (1/2”) to ensure the force around the unit is evenly distributed, refer...
2.10.2. Internal Piping Specifications Vertiv™ Liebert® XDO terminal is installed with the upper running piping. The installation piping includes the refrigerant inlet piping, the refrigerant outlet piping and the condensate drain piping. The specifications of the three piping are shown in...
Drain Figure 2-17 Unit Pipeline Location 2.10.3. Connection Between the Main Unit and the Terminal Refer to the relevant content of the overall system layout in “Vertiv™ Liebert® XDC multi-connected air conditioner main unit User Manual”. 2.10.4. Air Tightness Test Refer to the relevant content of the overall system layout in “Vertiv™...
2.11. Mechanical Installation Checklist Initiate the inspection checks after the mechanical installation is completed. Pre-check and confirm that there are no discrepancies or faults. Ensure that all the points in the checklist (refer Table 2-5 for installation checklist) are complying accordingly.
This chapter introduces the electrical installation of Vertiv™ Liebert® XDO unit, including installation notes, cabling and electrical inspection for the unit. Note1: Liebert XDO unit is a professional unit, used in industrial, commercial or other professional environment, and is not sold to the general public.
Open the front panel of the electric control box (on the side close to the running indicator light) and the rear panel of the electric control box (the other side) of the Liebert XDO unit, and you can see the specific distribution positions of the...
Connector Figure 3-3 Low Voltage Device Layout Diagram 3.2.2. Connection of Unit Power Supply Cables The specific location of the power interface of the Vertiv™ Liebert® XDO terminal unit is shown in Figure 3-1. L, N, and PE are connected to the corresponding ends of the external power supply. Leave a certain margin for the incoming cable and fix it on the cable fixing clamp, which is fixed on the inner panel of the unit.
CAN communication is used between the main unit and the terminal, and the user needs to cable on site. The communication cables are led from the CANH/CANL terminal of the main unit and connected in series with the CANH/ CANL on each terminal block of the Vertiv™ Liebert® XDO unit terminal. • Remote shutdown...
After confirming the above points, user can start the commissioning. Users are prohibited from powering on the unit before the professional and technical personnel authorized from Vertiv have checked and confirmed the electrical connections. Vertiv™ | Liebert® XDO | User Manual...
4.1.2. Commissioning Procedures Since the Vertiv™ Liebert® XDC main unit and Vertiv™ Liebert® Liebert® XDO terminals are connected as a system and are used together, the main unit and terminal adopt the same commissioning method. Refer to the related contents of the startup and commissioning in the “Vertiv™...
5 Controller Operation Instructions Vertiv™ Liebert® XDO unit is not equipped with a display screen, and each terminal can be operated from the Microprocessor controller color screen of Vertiv™ Liebert® XDC main unit (such as system parameter setting, status parameter and alarm information viewing, etc.).
Vertiv™ Liebert® XDO terminal, including routine maintenance inspections, system troubleshooting tests, and maintenance of filter net, fan components, cooling systems, and drainage systems. It is recommended that the load of Liebert XDO system should not be less than 30%. If the •...
6.2. Routine Maintenance Inspection (Semi-annual) Table 6-2 provides the details of semi-annual routine maintenance and inspection items of Vertiv™ Liebert® XDO unit. Table 6-2 Semi-annual Routine Inspection Items List Inspection items Remark Part Check whether the evaporator surface is clean and free from small particles (if any).
6.4. Electrical Connection Inspection 6.4.1. Electrical Maintenance Perform visual inspection and treatment to electrical connections according to the following items: 1. Electrical insulation test of the whole system: Find defective contacts and correct the defects. During the test, disconnect the fuse or MCB of the control section to avoid damage to the control panel due to high voltage. 2.
Note1: Do not operate and maintain the fan during the rotation of the fan blades to avoid injury. Note2: During the operation of the unit, it is forbidden to touch the fan net cover to prevent mechanical damage caused by the rapid rotation of the fan Vertiv™ | Liebert® XDO | User Manual...
If identified in such a condition fixed it immediately. 4. Check the refrigerant piping and fix the brackets in every six months. Note: It is not recommended that customers adjust the EEV by themselves. If user need some adjustment, contact Vertiv local representative or technical support engineer.
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Hose clamp Drain filter baffle Pump Figure 6-2 Condensate Pump Removal Note: Regularly check whether the drain filter net of the water pan is blocked by any foreign matter and clean it immediately. Vertiv™ | Liebert® XDO | User Manual...
7 Troubleshooting Troubleshooting is to be performed by the trained and qualified service personnel. However, the checklists have been provided just for reference purposes. • Prior to troubleshooting, the lethal voltage may be present in the unit which can be fatal. All notes, warnings, and cautions marked on the unit as well as the ones mentioned in the manual must be considered, otherwise, it may lead to injury and fatality.
Airflow volume is Fan failure Check whether the fan is malfunctioning. reducing Dirty or blocked Check the cleanliness of the surface of the microchannel evaporator evaporator, and clean it regularly. Vertiv™ | Liebert® XDO | User Manual...
Appendix III: List of Maintenance Inspection Items (Monthly) Prepared by: ____________________________ Date: _____________________________ Serial No.: ______________________________ Model: _____________________________ Cooling system part Filter net: ___ 1. Check the cleanliness of the evaporator surface ___ 1. Check if the filter net is damaged or blocked ___ 2.
__ 1. Check if the drain pump filter net is blocked __ 2. Check whether the water pump cable is loose __ 3. Check whether there are impurities, debris, etc. in the water pan Signature_________________________________________________________ Note: Please copy this form for record archive. Vertiv™ | Liebert® XDO | User Manual...
SJ/T11363-2006. Vertiv is committed to the design and manufacture of environmentally friendly products. We will continue to reduce and eliminate toxic and hazardous substances in our products through continuous research. The following components or...
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