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| Liebert® XDC | User Manual

2.8. Unit Piping Installation

2.8.1. Connecting Refrigeration Piping

Prior to the piping installation, user needs to calculate the length and height difference of each pipes, and the piping

specifications are provided in

Table 2-5

Figure 2-14

shows the piping connection that needs to be consider, including: Discharge pipe L1, Liquid return pipe L2,

Suction pipe L3, branch liquid pipe L4, and branch suction pipe L5.

ITEMS

DESCRIPTION

ITEMS DESCRIPTION

Discharge pipe

Branch suction pipe

Liquid pipe

Liquid distributor

Sight glass

Branch liquid pipe

Suction pipe

Ball valves

Suction distributor

Dry filter for XDO and XDV

Figure 2-14 Engineering Pipeline Diagram

Содержание Liebert XDC

Страница 1: ...Vertiv Liebert XDC High Heat Density Precision Air Conditioner User Manual...

Страница 2: ...o other local practices or building codes as applicable for the correct methods tools and materials to be used in performing procedures not specifically described in this document The products covered...

Страница 3: ...This page is intentionally left blank...

Страница 4: ...play Screen 6 1 4 4 Safety Control Device 7 1 4 5 Oil Separator 7 1 4 6 Remote Monitoring Software 7 1 4 7 Outdoor Unit 7 1 5 Refrigerant Requirements 7 1 6 Environmental Requirements 8 1 6 1 Operatin...

Страница 5: ...8 2 Dimension Refrigerant Piping 22 2 8 3 Branch Manifold 24 2 8 4 Connecting Refrigerant Piping 25 2 8 5 Air Tightness Test 26 2 8 6 Charging Refrigerant Oil 26 2 9 Remove Transportation Fixing Plate...

Страница 6: ...ions 39 5 1 Features 39 5 2 Appearance 39 5 3 Color Screen Interface 40 5 3 1 Startup Interface 40 5 3 2 Main Interface of the Color Screen 40 5 3 3 Operation Example 42 5 4 Other Interfaces 43 5 4 1...

Страница 7: ...Terminal Fan 52 6 8 Air cooled Condenser 52 6 9 Compressor 52 6 10 Mechanical Failure 53 6 11 Electrical Failure 53 7 Troubleshooting 54 Appendix I Circuit Diagram of Vertiv Liebert XDC 57 Appendix II...

Страница 8: ...t is installed where cooling load changes drastically It is also configured with Vertiv Liebert XD multi connected air conditioners with the following features 1 1 1 Energy Saving The Liebert XDC main...

Страница 9: ...an be applied to different installation and use environments as shown in Figure 1 2 Figure 1 3 and Figure 1 4 Note For the related contents of the Liebert XD terminal please refer to the user manual o...

Страница 10: ...ure small overall sizes unique structure design frame which is stable strong and easy to disassemble and can be easily handled under extreme conditions Highly Efficient Refrigerant In order to meet th...

Страница 11: ...6 Cooling Capacity kW 0 9 130 kW Digit 7 Redundancy R Pump Redundancy 9 Dual Invert Compressor Digit 8 Power Supply M 380 V to 400 V 3 Ph 50 Hz N 380 V to 415 V 3 Ph 50 60 Hz N Digit 9 Refrigerant 1 R...

Страница 12: ...l device oil separator compressor s driver color screen and other supporting components 1 4 1 Compressor The unit uses a high efficiency variable capacity compressor as shown in Figure 1 6 This compre...

Страница 13: ...screen display configuration that has a simple user interface and multi level password protection which can effectively prevent the illegal operations It has power down self recovery function and high...

Страница 14: ...ency oil separator with oil separation efficiency of 90 or more ensuring stable oil return from the compressor 1 4 6 Remote Monitoring Software Liebert XDC air conditioner is provided with the standar...

Страница 15: ...ction level IP20 Altitude 1000m more than 1000m please contact Vertiv Technology Operating voltage range 380 V to 415 V 10 to 6 V 3 N 50 Hz 60 Hz Pollution level Level II 1 6 2 Storage Environment The...

Страница 16: ...air circulation 4 All doors and windows should be fully enclosed 5 The thermal load of the computer room should not be less than 30 of the rated cooling capacity of the unit The Liebert XDC precision...

Страница 17: ...se of a special application consult Vertiv local representative 2 3 Unpacking and Inspection 2 3 1 Transportation and Handling 1 When transporting the priority shall be given to rail or water transpor...

Страница 18: ...g procedures are as follows 1 First remove the top cover and winding stretch film then remove the honeycomb cardboard as shown in Figure 2 4 ITEMS DESCRIPTION ITEMS DESCRIPTION 1 Top cover 3 Honeycomb...

Страница 19: ...nd to observe the state of the refrigerant in the system L shaped cabinet parts and matching screws Screw specifications GB819_1_2000_M5x12 4 If the Liebert XDC main unit is installed between the rows...

Страница 20: ...own in Figure 2 6 Figure 2 6 Overall layout of the system Note Figure 2 6 shows a schematic diagram of Liebert XDC with a Terminal Fan in actual practise the number of fans may be more than 2 Note Eac...

Страница 21: ...independent Figure 2 7 shows the installation of the piping when the outdoor unit is placed higher than the indoor unit with single system and Figure 2 8 shows the installation of the piping when the...

Страница 22: ...hat the relevant pipeline is at least 1 100 inclination Note Refer to the installation diagram When the outdoor unit is higher than Liebert XDC or the terminal is lower than Liebert XDC pay attention...

Страница 23: ...an adjustable wrench to loosen the fastening nuts on the 4 hexagonal bolts in a clockwise direction refer Figure 2 10 3 Turn the hexagonal bolt at the bottom of the foot until the foot is raised or l...

Страница 24: ...sen the fastening nuts on the 4 hexagonal bolts in turn clockwise 2 Turn the hexagonal bolt at the bottom of the leveling foot clockwise until the foot falls off the cabinet frame Fix the Cabinet Ther...

Страница 25: ...ion Line 28 Discharge Line 22 The location and dimensions of the inlet and outlet piping of the unit at the bottom plate are shown in Figure 2 12 ITEMS DESCRIPTION ITEMS DESCRIPTION 1 Control cable en...

Страница 26: ...2 7 2 Leveling the Cabinets Following are the steps for connecting the cabinets in parallel 1 Remove the L shape combined cabinet part from the unit accessories kit Figure 2 13 shows position A left...

Страница 27: ...le 2 5 Figure 2 14 shows the piping connection that needs to be consider including Discharge pipe L1 Liquid return pipe L2 Suction pipe L3 branch liquid pipe L4 and branch suction pipe L5 ITEMS DESCRI...

Страница 28: ...t bottom 5 Height difference between terminals H4 15 Note For the applications with larger piping lengths or height differences consult Vertiv local representative Example The calculation of the pipin...

Страница 29: ...al and the equivalent piping length select the specifications of the branch liquid pipe L4 and the branch gas pipe L5 from Table 2 10 Table 2 7 Discharge Pipe Diameter Requirements Liebert XDC Rated C...

Страница 30: ...nch Gas Pipe L5 OD m XDV010 0 20 12 7 19 20 40 12 7 22 40 60 16 22 XDO020 0 20 16 22 20 40 16 25 40 60 19 28 XDH030 0 20 16 22 20 40 16 25 40 60 19 28 The wall thickness requirements of copper piping...

Страница 31: ...hen a T shaped 3 way connector with suitable pipe diameter can be used Before connecting the branch manifold cut the branch manifold according to the pipe diameter of the branch pipe Figure 2 15 Branc...

Страница 32: ...l the pipe with nitrogen preventing excessive oxidation during brazing and forming an oxide film on the inner wall of the pipe 4 Ensure a certain inclination when installing the pipeline 5 When instal...

Страница 33: ...the pressure of the leak detection in the low pressure section must not exceed the value higher than 32 8 bar otherwise the compressor will be damaged After the leak detection is completed the nitroge...

Страница 34: ...Unit Length kg m 16 0 169 19 0 238 22 0 315 25 0 415 Note Before commissioning the Liebert XD system for the first time it must be recharged with refrigerant oil as per the requirement The lack of ref...

Страница 35: ...nd may result in loosening connections and wearing of certain parts Hence to ensure the rigidity of the compressor during transportation three U shaped fixing plates are added to the compressor base N...

Страница 36: ...ance The unit is placed vertically and the installing fasteners are firmly fixed The piping connecting the indoor and outdoor units have been installed properly and the ball valves of the condenser th...

Страница 37: ...he connection of all power cables control cables and ground cables must comply with the national and local electrician regulations 2 For full load current refer to the unit s nameplate The cable size...

Страница 38: ...own in Figure 3 1 ITEMS DESCRIPTION 1 Input access cable should be fixed Figure 3 1 Electrical Control Box and User Cabling Open the front door of Vertiv Liebert XDC unit and the user can see the spec...

Страница 39: ...rresponding ends of the external power supply terminals respectively A certain margin for the incoming cable should be provided to fix it on the cable fixing clamp which is fixed on the inner panel of...

Страница 40: ...ld cabling wiring Before connecting the control cables the person who carries out cabling work must take corresponding anti static measures ITEMS DESCRIPTION ITEMS DESCRIPTION 1 Customized Alarm 4 RS...

Страница 41: ...it will shut down Self defined alarm terminal Terminals 50 51 55 can be connected to 3 kinds of sensor inputs and terminal 24 is a common terminal It can also be defined as a fire sensor etc After the...

Страница 42: ...electrical circuit of the system The power supply and ground cables are firmly connected to the disconnect switches The rated value of the circuit breaker or fuse is correct The control cable is conne...

Страница 43: ...nd firmly fixed all electrical and control connections 3 Confirm that the power supply cables and low voltage control cables are arranged separately 4 1 2 Vacuuming As Liebert XDC unit and the cooling...

Страница 44: ...hat the system enters the vacuum mode again through the settings Note The longer on site connecting pipe the greater the requirement for static charging Note After the static charging is finished ensu...

Страница 45: ...ging check and confirm according to Table 4 1 Table 4 1 Commissioning Inspection Checklist Inspection Items Results All output functions are automatic The temperature and humidity settings and control...

Страница 46: ...tion phase failure protection reverse phase protection and other functions 3 Through the menu operation user can accurately understand the main parameters and operating status of the system 4 Expert l...

Страница 47: ...er the user password to unlock then the setting button and power on off button will appear for parameter setting and power on off setting The top half of the color screen displays the home button alar...

Страница 48: ...trol mode On Off button This button will be displayed after unlocking the unit is in shutdown state click this button for at least 2sec the unit will turn on the unit is running click this button for...

Страница 49: ...m then the parameter takes effect 5 Press the exit key to return to the previous menu interface Note After changing the parameters if user does not press ENTER to confirm the supply air high temperatu...

Страница 50: ...rrent alarm status record of the air conditioner unit prompting no alarm or specific alarm status information The specific alarm status information includes serial number alarm content and alarm occur...

Страница 51: ...ick the Main Unit icon to enter the interface shown in Figure 5 7 and Figure 5 8 the unit icon on the left is lit user can view the main unit operating status and set related parameters Figure 5 7 Men...

Страница 52: ...Terminal icon to enter the interface shown in Figure 5 9 Figure 5 10 and Figure 5 11 The left terminal icon is lit user can view the running status of the terminal and set related parameters Figure 5...

Страница 53: ...Vertiv Liebert XDC User Manual 46 Figure 5 11 Terminal Alarm Setting Interface 5 4 4 Run Time Figure 5 13 shows the RUN Time interface of the unit Figure 5 12 Run Time Interface...

Страница 54: ...Color Display Screen Operating Instructions 47 5 4 5 About Figure 5 14 shows the About interface of the unit Figure 5 13 About Interface...

Страница 55: ...mponents monthly focusing on checking whether the system functions normally and whether the components have any sign of wear Refer to Table 6 1 for the monthly routine maintenance inspection items Tab...

Страница 56: ...k fuse and MCB Check and tighten circuit connectors Check control program Check the closing condition of the contactor Cooling terminal Electronic expansion valve Whether the refrigerant pressure and...

Страница 57: ...ormer and check the output voltage 2 Check the appearance of the terminal transformer and power supply module and check the output voltage 3 Check the control interface board control board temperature...

Страница 58: ...he compressor to stop On the other hand too high suction pressure will also reduce the cooling of the compressor motor by the refrigerant which may cause damage to the compressor The minimum low press...

Страница 59: ...ical damage caused by the operation of the fan 6 8 Air cooled Condenser Refer to the related information in Maintenance in Vertiv Liebert LVC Condenser User Manual 6 9 Compressor The Vertiv Liebert XD...

Страница 60: ...t of the compressor motor measures must be taken to clean the system to eliminate acidic substances in the system and avoid such failures in the system in the future Note The replacement of the compre...

Страница 61: ...the average current Loose circuit connection Fasten the circuit connector Compressor coil is short circuited and burned out Check the motor windings if any defect is found replace them immediately Th...

Страница 62: ...e detection is too low abnormal Check the suction pressure Check the circuit where the low pressure sensor is located Check whether the reading of the low pressure sensor and the actual pressure are w...

Страница 63: ...the filter net Clogged dry filter Replace the dry filter Improper setting of the superheat of the electronic expansion valve of the terminal Operate strictly in accordance with the design superheat of...

Страница 64: ...4 3 24 4 BK BK 29 1 29 3 LPT1 BK BK 30 1 30 3 LPT2 BK BK OPTIONAL 13 2 NO 1 2 23 25 25 27 TEMPERATURE SENSOR 1 2 DLTS1 2 DISCHARGE LINE HP1 2 HIGH PRESSURE SWITCH 35 30 VFD1 2 COMPRESSOR FREQUENCY HPT...

Страница 65: ...1 6 380Vx3 Power supply undervoltage alarm value V 380Vx 1 10 380Vx3 Low voltage alarm start delay s 30 180 600 Low exhaust superheat alarm activation delay s 30 300 600 Self defined 1 type 0 0 2 Self...

Страница 66: ...ing vibration ___ 3 Compressor drive Air cooled condenser ___ 1 Cleanliness of condenser fins ___ 2 Whether the fan mounting base is firm ___ 3 Whether the fan cushion is aged or damaged ___ 4 Whether...

Страница 67: ...eek for the thunderstorm season ___ 5 Speed controller voltage regulation function ___ 6 The temperature switch is at the specified setting value ___ 7 The refrigerant pipeline is properly supported _...

Страница 68: ...cts We will continue to reduce and eliminate toxic and hazardous substances in our products through continuous research The following components or applications contain toxic and hazardous substances...

Страница 69: ...Connect with Vertiv on Social Media https www facebook com vertiv https www instagram com vertiv https www linkedin com company vertiv https www twitter com vertiv...

Страница 70: ...rks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracy and completeness here Vertiv Group Corp assumes no responsibility and disclaims all lia...

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