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Liebert PEX Condenser Technical Manual

1. 2 2 2 Parameters Of Mounting Base The condenser can be installed horizontally or vertically Mounting base for horizontal installation The mounting base for horizontal installation is shown in Figure 2 2 and the mounting base dimensions of each model are listed in Table 2 4 L D D a Amplified pols part figure Bottom view LO 1O v 148 B _ 148 E Front view Side view Figure 2 2 Mounting base dimensions for horizontal installation unit mm Table 2 4 Mounting base dimensions for horizontal installation unit mm Dimension Dimension Model B Cc Model B Cc 2S Lx H x D nee L x H x D LSF12 676 x 837 x 53 530 691 LSF76 2126 x 1120 x 53 1980 974 LSF18 676 x 837 x 53 530 691 LSF85 2126 x 1120 x 53 1980 974 LSF24 1126 x 837 x 53 980 691 LDF42 1326 x 1120 x 53 1180 974 LSF32 1126 x 837 x 53 980 691 LDF52 1326 x 1120 x 53 1180 974 LSF38 1126 x 837 x 53 980 691 LDF62 1826 x 1120 x 53 1680 974 LSF42 1326 x 1120 x 53 1180 974 LDF72 1826 x 1120 x 53 1680 974 LSF52 1326 x 1120 x 53 1180 974 LDF76 2126 x 1120 x 53 1980 974 LSF62 1626 x 1120 x 53 1480 974 LDF85 2126 x 1120 x 53 1980 974 s eeno 1880 ee gt EJ Note The installation holes are long and flat holes It is recommended to use M10 x 20 bolts to fix the mounting base Liebert PEX Condenser Technical Manual 2 3 2 3 1 Chapter 2 Technical Parameters Mounting base for vertical installation The mou
2. LDF85 FE080 ADK 6N V7 2 A Note When the fans of models LSF12 and LSF32 are replaced you should change the wiring of the fan motor from delta wiring type A to star wiring type Y Fan speed controller Check that the fan speed controller board operates normally If not replace it The board is installed inside the electrical control box Refer to Figure 4 2 for assembling Rotate the isolation switch to OFF and then remove the cover plate of the electrical control box as shown in Figure 4 1 OFF ON Figure 4 1 Fan speed controller board Liebert PEX Condenser Technical Manual Chapter 4 Maintenance And Troubleshooting Heat sink Figure 4 2 Removing the fan speed controller board Oo Note 1 in Figure 4 2 are seven bolts M4 x 10 The bolt and bolt are used to fix the heat sink others are used to fix the fan speed controller board 2 Except for the seven bolts in Figure 4 2 other bolts are prohibited to remove 3 While installing the fan speed controller board bolt and bolt used to fix the heat sink must be fastened firstly The heat sink must cling to the back plate of the electrical control box After installing the heat sink use other five bolts to fix the fan speed controller board Pressure sensor If the standard configuration pressure sensor fails follow the instructions below to select the type and install the sensor e Selecting pressure sensor type To ensure the measurement precis
3. P3070 LDF85 P3080 P3090 P3100 Liebert PEX Condenser Technical Manual 22 Appendix 2 Circuit Diagram Appendix 2 Circuit Diagram L1 02 Pressure sensor 2 Pressure sensor 1 04 ee Compressor We ca PENSAS Red Orange signal Black Black i aor Moo pica pon J9321 J3 HP1 J4HP2 J14HP2 J15HP1 J5 OutTemp J11 RS232 J7 FaniSta J10 Fan2Sta J6 CompSta W V U L3 L2 L1 PE __ Shell connecting to the earth 03 03 03 L1 04 04 05 02 02 02 01 02 Black Black Black Black Red Orange Olivine Black Black Black Black Olivine x x HL 1 2 3 4 5 le S Wiring terminal 7 y a y o A Air circuit breaker o E block J S 8 9 10 41 12 13 O 14119 Black Black Black Black Red Orange Black Olivine 10 10 10 06 06 06 07 08 09 01 01 Black Black Black 1L1 3L2 5L3 A1 NO L L l AAA Contactor 1 Isolation switch 271 4T2 6T3 A2 NO Black Black Black O a L3 12 1
4. Technical Manual 24 Appendix 3 Lifting Figure Appendix 3 Lifting Figure See Figure 3 for lifting the condenser package taking the condenser with double fans for example an Note When lifting the package fix the cable by leading it through the slots at the bottom of the pallet Otherwise the cable may slide during the lifting process and the package may fall to the ground damaging the pipes within and resulting in system leakage K Figure 3 Lifting figure Liebert PEX Condenser Technical Manual Emerson Network Power Asia Australia T 1800 065345 F 61 2 97438737 New Zealand T 64 3 3392060 F 64 3 3392063 China T 86 755 860 10808 F 86 755 860 10245 Pakistan T 92 42 36622526 to 28 F 92 42 36622530 India T 91 22 67208000 F 91 22 25828358 Philippines T 63 2 6203600 F 63 2 6203693 Indonesia T 62 21 2513003 F 62 21 2510622 Singapore T 65 64672211 F 65 64670130 apan T 81 3 54038594 halland F 81 3 54032924 T 66 2 6178260 pa i F 66 2 6178277 78 Korea T 82 2 34831500 F 82 2 5927883 Vietnam T 84 4 37628908 F 84 4 37628909 Malaysia T 603 78845000 F 603 78845188 Marketing AP Emerson com Emerson Network Power The global leader in enabling Business Critical Continuity EmersonNetworkPower com MAC Power M Embedded Computing E Outside Plant M Racks amp Integrated Cabinets E connectivity M Embedded Power E Power Switching amp Controls M S
5. main menu interface are listed in Table 3 7 The switching operation processes and orders are shown in Figure 3 6 Table 3 7 Key functions of analog main menu interface Key Function UP DOWN Switch between ID ESC Return to the analog main menu interface F Analog main menu ENT key Analog submenu shows F y the ID and values circulary lt q Initial interface DOWN key F01 16 1 A la Analog ID definitions F02 16 1 F01 The maximum pressure between the pressure 1 and pressure 2 88 8 will be F03 0 shown when the pressure sensor is disabled A F02 Pressure 1 F04 15 F03 Pressure 2 ESC key F04 Ambient temperature F05 60 F05 SCR temperature y F06 88 F06 Output voltage percentage UP key Figure 3 6 Switch figure of analog main menu interface Current alarm main menu interface The key functions of the current alarm main menu interface are listed in Table 3 8 The switching operation processes and orders are shown in Figure 3 7 Table 3 8 Key functions of the current alarm main interface Key Function UP DOWN Switch between ID ESC Return to the analog main menu interface F Current alarm main menu interface AT ENT key When there is an alarm the XX of E alarm ID is the number from 00 DOWN key orl AXX Current alarm ID definitions A00 Phase loss alarm No alarm AXX A01 SCR ov
6. over temperature fan 1 over Query the current alarm gt 2 data in real time temperature fan 2 over temperature pressure sensor failure EEPROM read fault SCR temperature sensor failure and abnormal frequency uery the historical 3 Query i The last saved 100 historical alarms can be queried alarm data in real time Change the The configuration parameters include setup pressure P e pressure control band P ana 4 configuration minimum voltage Vmin maximum voltage Vmax fan number pressure sensor type or resume parameters in real time the above parameters to the default values see C99 in Figure 3 9 Liebert PEX Condenser Technical Manual 3 4 Chapter 3 Fan Speed Controller 13 The keys and LED are located on the upper right corner of the fan speed controller board as shown in Figure 3 2 The appearance is shown in Figure 3 3 LED k ESC key UP key DOWN key Figure 3 3 Keys and LED Operation Description Of HMI Initial interface When the fan speed controller is powered on initially the LED will alternately display FO1 the max pressure logo and the larger of condensing pressure 1 and condensing pressure 2 The key functions on the initial interface are listed in Table 3 5 The display order is shown in Figure 3 4 the 16 1 is only an example and the actual value is determined by the sampling result Table 3 5 Key function of initail interface Key Function ESC Enter the main menu inte
7. the interval between two consecutive over temperature alarms of fan 1 is less than 24 hours the power of fan contactor coil will be cut off and the fan power output will be stopped After the maintenance personnel remove the faults and restart the fan speed controller the fan re works When two fans are configured if the interval between two consecutive over temperature alarms of both fan 1 and fan 2 is less than 24 hours the power of fan contactor coil will be cut off and the fan power output will be stopped After the maintenance personnel remove the faults and restart the fan speed controller the fans re work 3 6 Alarm Protection The fan speed controller can handle the corresponding alarms according to the acquired alarm information The detailed alarms include 1 Phase loss alarm 2 SCR over temperature 3 Fan 1 over temperature 4 Fan 2 over temperature 5 Pressure sensor failure 6 EEPROM read fault 7 SCR temperature sensor failure 8 Abnormal frequency See Table 4 2 for alarm generating conditions and troubleshooting Liebert PEX Condenser Technical Manual 4 1 Chapter 4 Maintenance And Troubleshooting 17 Chapter 4 Maintenance And Troubleshooting This chapter gives an introduction to the maintenance and troubleshooting of the condenser You should check the condenser regularly to ensure reliable operation and system performance When the unit is in operation the isolation switch outside the electrical control box is tur
8. 1 N PE 09 External power Remark 1 Connect the pressure sensor 1 only when PEX condenser is a single circuit 2 Connect the pressure sensor 1 and 2 with the Fan copper pipe of PEX condenser when PEX condenser is a dual circuit 3 When mounted vertically the lower header connects to pressure sensor 1 and the upper header connects to pressure sensor 2 4 Both external power and compressor signal are wired in field 5 The compressor signal cables should be in parallel and then connected into the electrical control board when the indoor unit is a dual circuit Figure 1 Circuit diagram of the condenser with single fan Liebert PEX Condenser Technical Manual Appendix 2 Circuit Diagram 23 L1 03 Pressure sensor 2 Pressure sensor 1 06 10 11 Compressor Black Black White Brown Orange signal caca A a LI MAL EE J9321 J3 HP1 J4HP2 J14HP2 J15 HP1 J5 OutTemp J11 RS232 J7 Fan1Sta J10 Fan2Sta J6 CompSta W V U L3 L2 L1 P
9. 5 lt 71 Liebert PEX Condenser Technical Manual Chapter 2 Technical Parameters 9 2 3 4 Configuration Parameters The condenser uses the fan speed controller to control the fan full load supply voltage according to the designed load decreasing the SPL of the fan while meeting the designed load The default full load supply voltage Vmax percentages in factory of all models are listed in Table 2 11 Table 2 11 Full load supply voltage Vinax percentages in factory Model Vmax percentage in factory LSF12 LSF18 LSF32 LSF72 LDF52 LDF72 100 LSF52 LDF42 89 LSF76 LSF85 LDF76 LDF85 81 LSF38 LSF42 LSF62 LDF62 73 LSF24 65 Liebert PEX Condenser Technical Manual 10 Chapter 3 Fan Speed Controller Chapter 3 Fan Speed Controller This chapter details the fan speed controller including control logic wiring terminal human machine interface HMI HMI operation protection function and alarm function 3 1 Control Logic The control logic of the fan speed controller is shown in Figure 3 1 V 4 100 Vin Vmax Vx Vmin Poff Pset Px Pwmax Py100 P Figure 3 1 Control logic figure The control logic is described as follows O Startup control If the startup condensing pressure is within the setting range Pset Pset Prana the fan speed controller will output Vx if the startup condensing pressure exceeds the setting range Pset Pset Pbana the fan spe
10. 62 43 1 54 6 71 8 87 6 97 6 LSF72 45 3 58 1 77 5 96 0 106 1 LSF76 51 7 67 2 90 5 112 7 127 1 LSF85 57 8 75 3 99 0 123 1 138 3 LDF42 30 0 38 0 50 0 61 0 68 0 LDF52 34 2 43 3 57 0 69 5 77 5 LDF62 45 5 57 6 75 8 92 5 103 1 LDF72 49 1 62 6 81 7 98 8 110 3 LDF76 51 6 67 5 90 3 112 4 126 8 LDF85 57 9 74 8 99 5 122 9 138 3 Note TD condensing temperature ambient temperature Table 2 8 Heat exchanging capacities R407C Model UA 10 12 15 18 20 LSF12 N A 8 5 11 9 16 1 18 6 LSF18 N A 8 7 14 1 18 9 21 8 LSF24 11 6 14 4 22 8 29 1 33 6 LSF32 14 2 18 6 27 8 35 1 39 8 LSF38 19 2 25 1 37 6 48 2 54 8 LSF42 21 7 28 5 42 5 54 4 62 1 LSF52 26 7 35 1 52 4 67 1 76 5 LSF62 32 8 43 1 64 4 82 4 94 0 LSF72 34 9 45 8 68 4 87 6 99 9 LSF76 39 8 52 3 78 0 99 8 113 9 LSF85 45 9 60 3 90 0 115 2 131 4 LDF42 22 6 29 7 44 4 56 8 64 8 LDF52 27 7 36 4 54 4 69 6 79 4 LDF62 35 2 46 2 69 0 88 3 100 7 LDF72 37 2 49 5 73 4 93 4 106 6 LDF76 39 2 51 0 77 0 103 5 119 3 LDF85 44 7 58 1 89 1 116 3 133 7 Note TD condensing temperature ambient temperature Liebert PEX Condenser Technical Manual 2 3 3 Chapter 2 Technical Parameters SPL Parameters Place the condenser vertically and test the SPL of the outdoor fan following SPL test method The fan test voltage is the output voltage of the fan speed controller in the working condition of SPL test See Table 2 9 for the working condition of SPL test and Figure 2 4 amp
11. E 04 04 04 L1 06 10 11 05 Shell connecting 03 03 03 03 Black Black BlackBlack White Brown Orange to the earth Black Black Black Olivine Olivine 1 2 3 4 5 67 dolo _ 78lgl O Wiring terminal fe WC 7 214 Aircircuit 7 block breaker 22 a 12 113 114 15 16 DID 17118 1S Black Black Black Black White Brown Orange Black Black Olivine Olivine 10 10 10 07 07 07 08 09 09 09 02 01 02 01 Black Black Black Isolation 1L1 3L2 5L3 A1 NO 1L1 3L2 5L3 A1 NO switch Contactor 1 Contactor 2 2T1 4T2 6T3 A2 NO 271 4T2 6T3 A2 NO L3 L2 L1 N PE Black Black Black Black Orange Black Black Black Black Orange 01 01 01 01 09 02 02 02 02 09 External power ARER as Remark U1 l TBU 1 TBH 1 Connect the pressure sensor 1 only when PEX Fan1 remote E TB Fan2 condenser is a single circuit PE PE proximal 2 Connect the pressure sensor 1 and 2 with the 01 01 02 02 copper pipe of PEX condenser when PEX condenser is a dual circuit 3 When mounted vertically the lower header connects to pressure sensor 1 and the upper header connects to pressure sensor 2 4 Both external power and compressor signal are wired in field 5 The compressor signal cables should be in parallel and then connected into the electrical control board when the indoor unit is a dual circuit Figure 2 Circuit diagram of the condenser with double fans Liebert PEX Condenser
12. E Next Generation Critical Cooling for Room and Row Liebert PEX Efficiency And Reliability For High Availability Cooling Condenser Technical Manual 4 EMERSON Network Power Liebert PEX Condenser Technical Manual Version V1 0 Revision date May 27 2010 BOM 31020761 Emerson Network Power provides customers with technical support Users may contact the nearest Emerson local sales office or service center Copyright 2010 by Emerson Network Power Co Ltd All rights reserved The contents in this document are subject to change without notice Emerson Network Power Co Ltd Address No 1 Kefa Rd Science amp Industry Park Nanshan District 518057 Shenzhen China Homepage www emersonnetworkpower com cn E mail support emersonnetwork com cn Contents Chapter VI EEE E A T A TOTA E A E A AE OTT 1 1 1 Classification And Models uvcooiiitra aio 1 1 2 Model Description aa ia 1 13 APPOAlAN GO civic topado Ratas ei 1 Chapter 2 Technical Parameters cocino iio 3 2 11 Environmental Parameters iii dais 3 2 1 1 Parameters Of Storage ENVIT ON MENE isccuiiicir tania 3 2 1 2 Parameters Of Operating Environment oocccoonoccccnonoccnonononononononcnnnonnno nono nnnnnn nn nn cnn nn nn nan n nn rnnnn rn rr nnnn rca nannnnnnns 3 LISA Cali ds 3 2 2 Mechanical Parameters iii ica 4 2 2 1 Mechanical Parameters Of CONdeNSOTccocccnnocccccononcnnnonononononcnnnonn untk knarr tuau nn rr nnnn nn nana r rre enn nn rr nnn narra
13. Figure 2 5 for the placing modes of the condenser used to test SPL The SPL parameters of all models are listed in Table 2 10 Table 2 9 Working condition of SPL test unit C Internal cycle air condition External cycle air condition Dry bulb temperature Wet bulb temperature Dry bulb temperature Wet bulb temperature 23 17 35 m Condenser O 4 Test point 1 Test point 4 vertical mode Test point 3 Test point 2 Airflow Horizontal difference the difference between the test point and the unit shell is 1m Vertical difference the vertical difference from the earth is 1 2 the unit height 1m Figure 2 4 Single fan SPL test figure with vertical placement Condenser m Test point 4 _ vertical mode om Test point 1 Test point 3 Test point 2 Airflow Horizontal difference the difference between the test point and the unit shell is 1m Vertical difference the vertical difference from the earth is 1 2 the unit height 1m Figure 2 5 Double fans SPL test figure with vertical placement Table 2 10 SPL parameters unit dB A Model Full load SPL LSF12 lt 65 LSF18 lt 71 LSF24 lt 66 LSF32 lt 64 LSF38 lt 68 LSF42 lt 68 LSF52 lt 68 LSF62 lt 68 LSF72 lt 68 LSF76 lt 71 LSF85 lt 71 LDF42 lt 68 LDF52 lt 68 LDF62 lt 68 LDF72 lt 68 LDF76 lt 71 LDF8
14. ce in 3 4 Operation Description Of HMI Table 4 2 Table of alarm troubleshooting Alarm Alarm name Cause Troubleshooting number ID One phase or two phases of three phase p WSR p Check that the three phase voltage is correct voltage are lost Phase loss E A00 alarn The input connection is reversed Check the input wire order The fan speed controller board has a hardware Replace the fan speed controller board and fault then compare the results of two boards SCR over The fan cannot run normally Check that the fan runs normally A01 temperatur The fan speed controller board has a hardware Replace the fan speed controller board and P fault then compare the results of two boards The fan cannot run normally Check that the fan runs normally Fan 1 over The AC contactor supplying power for fan is Check the wiring of AC contactor detect the A02 A03 temperature faulty or disconnected auxiliary contact state of AC contactor i Fan 2 over The fan speed controller board has a hardware j A Replace the fan speed controller board and temperature fault the detecting circuit or SCR power A D nery then compare the results of two boards supplying circuit is faulty The pressure sensor is not installed or its aa ot Check the wiring of pressure sensor terminal connection is poor Piessure Jumper caps are not used to short terminals Install the jumper cap when the current J17 and J18 of curre
15. corrosive fins low sound levels and efficient reliable operation over a wide range of ambient conditions To maximize performance and reduce downtime the installation and commissioning of each unit must be carefully carried out This manual provides a guide to unit installation and commissioning lt should be read carefully before installation or commissioning commences If an equipment defect is found or if a malfunction occurs it should be reported to your local sales office or distributor immediately Note This manual refers only to standard production units Units manufactured to a non standard specification will generally be supplied with supplementary notes and drawings Field alterations and or external equipment alterations or connections are not covered by the Liebert product warranty This chapter gives a brief introduction to the classification amp models model description and appearance of the Liebert PEX condenser condenser for short Classification And Models The condenser is classified into single circuit and dual circuit in 17 models See Table 1 1 for details Table 1 1 Models Type Model Single circuit LSF12 LSF18 LSF24 LSF32 LSF38 LSF42 LSF52 LSF62 LSF72 LSF76 LSF85 Dual circuit LDF42 LDF52 LDF62 LDF72 LDF76 LDF85 Model Description Taking LSF62 for example the model description of the condenser is shown in Figure 1 1 L SF 62 Model code SF single cir
16. cuit with fan speed controller DF dual circuit with fan speed controller Liebert Figure 1 1 Model description 1 3 Appearance The condenser consists of the heat exchanger fan fan speed controller and pressure sensor The heat exchanger is inside the condenser and other components are shown in Figure 1 2 Note that the side copper pipes may be deformed by collision resulting in system leakage So you must use a correct method to move the condenser For detailed moving method refer to Chapter 2 Installation in Liebert PEX Condenser User Manual and Appendix 2 Circuit Diagram in this manual Liebert PEX Condenser Technical Manual 2 Chapter 1 Overview ECB electrical control box with a fan speed controller inside Isolation switch Pressure sensor Single fan single circuit condenser Fans Isolation switch Electrical control box with a fan speed controller inside Pressure sensors 2 pcs Double fans dual circuit condenser Figure 1 2 Condenser Liebert PEX Condenser Technical Manual Chapter 2 Technical Parameters Chapter 2 Technical Parameters This chapter details the environmental parameters mechanical parameters and performance parameters of the condenser 2 1 Environmental Parameters 2 1 1 Parameters Of Storage Environment See Table 2 1 for parameters of storage environment Table 2 1 Parameters of storage environment 3 Item Requirement Storage environm
17. ed controller will output Vmax e Operation control The control logic during operation follows A gt B gt C gt D gt E gt F gt C gt B gt A gt G gt H gt The point A is the corresponding point of the condensing pressure from B to G e Shutdown control When the condensing pressure is less than Por Pset 1 the fan speed controller stops supplying power to the fan e Max voltage output control When the condensing pressure rises above Py100 Pset Pband 5 the fan speed controller supplies 100 input voltage Vin to fan when the condensing pressure falls down to Pymax Pv100 2 the fan speed controller supplies the max setting voltage Vmax to the fan ma Note 1 The lifting pressure process follows the control logic of thin line G gt A gt B gt C gt D gt E and the releasing pressure process follows the control logic of thick line E gt F gt C gt B gt A gt G gt H gt I The difference between the two processes is the return difference Py 199 Pumax 2bar and Pye Por 1 bar 2 Py 100 Pset Pana Sbar The names default values and setting ranges of the configuration parameters in the control logic are listed in Table 3 1 Table 3 1 Configuration parameters SN Name Default Setting range 1 Startup pressure Par 13bar 11bar 15bar 2 Pressure control range Pyang 5bar 4bar 6bar 3 Min setting voltage V min 30 30 50 4 Max
18. ent Clean indoor environment with good ventilation and no dust Ambient temperature 40 C 70 C Ambient relative humidity 5 RH 85 RH The total storage time should not exceed 6 months Note that the performance needs to be Storage time sen re calibrated after the 6 months storage time 2 1 2 Parameters Of Operating Environment See Table 2 2 for parameters of operating environment Table 2 2 Parameters of operating environment Item Requirement The standard equivalent distance between the indoor unit and the condenser is 30m Vertical Installation position p difference AH 5m 20m Installation mode horizontal airflow or vertical airflow Ambient temperature Outdoor 20 C 45 C Low temperature kits are required if the temperature is 35 C 20 C Ambient relative Outdoor 5 RH 95 RH humidity Operation power 400V 10 50Hz Altitude lt 1000m Derating is required if the altitude exceeds 1000m Protection level Electrical control box IP55 unit IP20 Note The value is positive if the condenser is installed higher than the indoor unit otherwise the value is negative BA Note When the equivalent distance between the indoor unit and the condenser exceeds 30m see 5 7 Refrigerant Tubing System in Liebert PEX Series Air Conditioner Technical Manual for detailed requirements for the pipe equivalent length 2 1 3 Signal Cable It is recommended to use
19. er temperature ESC key A02 Fan 1 over temperature AXX A03 Fan 2 over temperature A04 Pressure sensor failure z A05 EEPROM read fault F ARK y A06 SCR temperature sensor failure A07 Abnormal frequency UP key Figure 3 7 Switch figure of current alarm main interface ae Note The alarm generating conditions and troubleshooting are listed in Table 4 2 Historical alarm main menu interface The key functions of the historical alarm main menu interface are listed in Table 3 9 The switching operation processes and orders are shown in Figure 3 8 Table 3 9 Key functions of historical alarm main menu interface Key Function UP DOWN Switch between ID ESC Return to the analog main menu interface F Liebert PEX Condenser Technical Manual Chapter 3 Fan Speed Controller Historical alarm main The radix point is the space mark between the number order and menu interface alarm ID The number is the alarm number and from1 whcih is ENT key the present historical alarm O is the 100th historical alarm X is H tes the historical alarm ID When there is no alarm will be shown DOWN a Historical alarm ID definitions 1 X 0 Phase loss alarm 1 SCR over temperature ESC key 2 X 2 Fan 1 over temperature 3 Fan 2 over temperature 4 Pressure sensor failure 99 X 5 EEPROM read fault 6 SCR tempera
20. ervices E DC Power E infrastructure Management amp Monitoring E Precision Cooling Ms rge Protection Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric 2010 Emerson electric Co AP11ENT PEXCondenserV1 TDM
21. fferent temperatures 30 C 35 C 40 C P1010 LSF12 LSF12 LSF12 P1015 LSF18 LSF18 LSF18 P2020 LSF24 LSF24 LSF24 P2025 LSF32 LSF32 LSF32 See Table 2 for the matching relationships of single circuit condensers for PEX Large Frame Table 2 Matching table of single circuit condensers Model of indoor unit Matching condensers at different temperatures 30 C 35 C 40 C P1020 LSF24 LSF24 LSF32 P1025 LSF32 LSF32 LSF32 P1030 LSF38 LSF38 LSF42 P1035 LSF42 LSF42 LSF52 P2035 LSF42 LSF42 LSF52 P2045 LSF52 LSF52 LSF62 P2055 LSF62 LSF62 LSF62 P2040 LSF24 x 2 LSF24 x 2 LSF32 x 2 P2050 LSF32 x 2 LSF32 x 2 LSF32 x 2 P2060 LSF38 x 2 LSF38 x 2 LSF42 x 2 P2070 LSF42 x 2 LSF42 x 2 LSF52 x 2 P3070 LSF42 x 2 LSF42 x 2 LSF52 x 2 P3080 LSF52 x 2 LSF52 x 2 LSF52 x 2 P3090 LSF52 x 2 LSF52 x 2 LSF62 x 2 P3100 LSF62 x 2 LSF62 x 2 LSF62 x 2 See Table 3 for the matching relationships of dual circuit condensers for PEX Large Frame Table 3 Matching table of dual circuit condensers Model of indoor unit Matching condensers at different temperatures 30 C 35 C 40 C P2040 LDF42 LDF42 LDF52 P2050 LDF52 LDF52 LDF62 P2060 LDF62 LDF62 LDF72 P2070 LDF76 LDF76 LDF85 P3070 LDF76 LDF76 LDF85 P3080 P3090 P3100 Liebert PEX Condenser Technical Manual 2 R407C Matching Table Appendix 1 Condenser Matching Tab
22. for their functions Table 3 3 Indicator functions Silk print Definition Color State Function On CPU circuit of the fan speed controller board D16 Power indicator Green is powered with 5V power supply Off Fan speed controller board is faulty On or off Fan speed controller board is faulty D22 Bur indicator Green Blinking at 1Hz slowly The Systemi is tunning normally without alarm Blinking at 5Hz quickly An alarm is registered or the compressor is in stop state On The control switch which supplies the AC D15 Power switch control Red contactor with the driving power is closed indicator of AC contactor off The control switch which supplies the AC contactor with the driving power is open RS232 serial port The RS232 serial port see J11 in Figure 3 2 is a port to connect the background computer using factory defined protocol It is used for factory commissioning and maintenance Keys and LED The keys and LED which can realize the functions in Table 3 4 provide the HMIs for service personnel For the operations of the keys and LED HMI refer to 3 4 Operation Description Of HMI Table 3 4 Function descriptions of keys and LED NO Function Description 4 Query the acquisition The acquisition data include condensing pressure ambient temperature silicon controlled data in real time rectifier SCR temperature output percentage The current alarm data include phase loss alarm SCR
23. ion of the condensing pressure the pressure sensor should be selected as follows 1 The type of the pressure sensor should match the fan speed controller 2 The configured pressure sensor type see Figure 3 9 must be the same as the actual type 3 The current type pressure sensor must meet 4mA 20mA corresponding to 0 30bar the voltage type pressure sensor must meet 0 5V 4 5V corresponding to 0 34bar 4 Except for the type configuration all parameters of the pressure sensor should be amended by factory prior to use e Installing pressure sensor The condenser is configured with current type pressure sensor in factory If the pressure sensor should be replaced the current type pressure sensor is recommended If the voltage pressure sensor has to be used because of special condition refer to the following steps 1 Remove the current type pressure sensors on J14 and J15 terminals see Figure 3 2 and the jumper caps of the current type pressure sensors on J17 and J18 terminals see Figure 3 2 2 Connect the voltage type pressure sensor to J3 and J4 terminals see Figure 3 2 For the type configuration of pressure sensor refer to Configuration main menu interface in 3 4 Operation Description Of HMI Liebert PEX Condenser Technical Manual 4 2 Troubleshooting Chapter 4 Maintenance And Troubleshooting 19 The troubleshooting of the condenser is listed in Table 4 2 For alarm query refer to Current alarm main menu interfa
24. k print Definition Definition of pins PE protection earth L1 L2 L3 three phase AC input terminals J1 AC I O terminal U V W three phase AC output terminals connected with the power supply terminals of the fan The middle terminal pin without logo is reserved y Pin 1 normally closed terminal of relay reserved Passive dry contactor relay output for the y i j J9 gt Pin 2 common terminal of relay used for AC input power switch of fan power contactor E Pin 3 normally open terminal of relay used for AC output Input terminal of voltage pressure sensor 1 J3 HP1 ale O age presse Pin 1 positive terminal of 5V power i p Eisamnelarolk 5 Pin 2 input terminal of 0 5V 4 5V pressure voltage signal J4 HP2 Pca R N AS ane eau Pin 3 negative terminal of 5V power spare J15 HP1 Input terminal of current pressure sensor 1 Pin 1 positive terminal of 12V power J14 HP2 Input terminal of current pressure sensor 2 Pin 2 input terminal of 4mA 20mA pressure current signal J17 J18 Jumpers used for current pressure sensor Current pressure sensor install jumper caps on J17 and J18 i configuration Voltage pressure sensor keep J17 and J18 in open status Input terminal of ambient temperature Pin 1 input terminal of temperature signal J5 Out Temp pu i i peratu inpu i perature sig sensor spare Pin 2 referrence ground of temperature signal Pin 1 communication ground Serial communication interface used for J11 RS232 b anor u Pi
25. le See Table 4 for the matching relationships of single circuit condensers for PEX Small Frame Model of indoor unit Table 4 Matching table of single circuit condensers Matching condensers at different temperatures 21 30 C 35 C 40 C P1010 LSF12 LSF12 LSF18 P1015 LSF18 LSF18 LSF24 P2020 LSF24 LSF24 LSF32 P2025 LSF32 LSF32 LSF38 See Table 5 for the matching relationships of single circuit condensers for PEX Large Frame Table 5 Matching table of single circuit condensers Model of indoor unit Matching condensers at different temperatures 30 C 35 C 40 C P1020 LSF32 LSF32 LSF38 P1025 LSF32 LSF38 LSF38 P1030 LSF38 LSF42 LSF52 P1035 LSF42 LSF52 LSF62 P2035 LSF42 LSF52 LSF62 P2045 LSF62 LSF62 LSF76 P2055 LSF62 LSF72 LSF85 P2040 LSF32 x 2 LSF32 x 2 LSF38 x 2 P2050 LSF32 x 2 LSF38 x 2 LSF38 x 2 P2060 LSF38 x 2 LSF42 x 2 LSF52 x 2 P2070 LSF42 x 2 LSF52 x 2 LSF62 x 2 P3070 LSF42 x 2 LSF52 x 2 LSF62 x 2 P3080 LSF52 x 2 LSF52 x 2 LSF62 x 2 P3090 LSF62 x 2 LSF62 x 2 LSF76 x 2 P3100 LSF62 x 2 LSF72 x 2 LSF85 x 2 See Table 6 for the matching relationships of dual circuit condensers for PEX Large Frame Table6 Matching table of dual circuit condensers Model of indoor unit Matching condensers at different temperatures 35 C 35 C 40 C P2040 LDF52 LDF52 LDF62 P2050 LDF52 LDF62 LDF72 P2060 LDF76 LDF76 P2070 LDF85
26. n 2 reception terminal of communication maintenance ad Por Pin 3 transmission terminal of communication Detecting terminal of fan 1 over temperature J7 FantSta oo MOSE dd be Detecting terminal of fan 2 over temperature A eo signal J10 Fan2Sta S ee perature Pin 2 return terminal of 19V AC signal J6 CompSta Detecting terminal of compressor state Note J8 SCRTemp in Figure 3 2 is a reserved device interface on fan speed controller board Do not use it Liebert PEX Condenser Technical Manual 12 3 3 Chapter 3 Fan Speed Controller aa Note 1 If the phase sequence of the three phase AC inputs L1 L2 and L3 is incorrect the fan speed controller will generate a phase loss alarm A00 and cannot supply the AC output 2 If the phase sequence of the three phase AC outputs U V and W is incorrect the fan will rotate in the reverse direction 3 If the upper temperature detecting terminals of the fan 1 amp 2 J7 J10 and the detecting terminal of the compressor J6 are not connected with cables you can short them with short cables to make sure that the fan speed controller can operate normally If the terminals are disconnected the fan speed controller cannot supply the AC output HMI The fan speed controller operation and setup is provided through indicators RS232 serial port keys and LED Indicator The fan speed controller board provides three indicators see Figure 3 2 See Table 3 3
27. n nnncinns 4 2 2 2 Parameters Of Mounting Base issiga niina ae na aa aa ei 5 2 3 Performance Parametros ta 6 2 3 4 Fan Design Parametros die 6 2 3 2 Heat Exchanging Capacity soiset oikat enida ae roedor qa coca 7 2 39 SPL Parameters sina enna dE ie at 8 2 3 4 Configuration Parameters umi ltda 9 Chapter 3 Fan Speed Controller eine 10 IMC ONO A el eee 10 3 2 WINING Termal risien darias 11 339 EAM zs eet ets sian ee ct deco ee ean Ot Soe se a Sean Sat nc Bar Ne ia ee tts Se Ad Sr 12 3 4 Operation Description Of TM lucio ii Del pai oaa 13 3 9 Protection FUNCION irte iaa dear 16 3 6 Alarm Pr A ee ee 16 Chapter 4 Maintenance And Troubleshooting ooooccinnncccnnnoccnononananononcncnnnonnnn nono ncn nan nn rra nn nr non n rre nn rra rre n rra rre 17 41 Maintenance cio A Ai dos 17 4 2 Troubleshooting iii deco 19 Appendix 1 Condenser Matching Table o ooooononcccnnnocaconococanononnncnanancnn nono cnn nan nnnnnnr nn rra rra 20 1 R22 Matching Table otitis 20 2 R407C Matching Table aaa ieee 21 Appendix 2 Circuit Diagrams e aae ee enan sides seusqcnessusceesasvscdeeoececcs sauce aen ARA degtesussdnebeasec catusecesaguscdesaruscdeevsceececnastastdenarese 22 Appendix 3 Lifting Figures ic cccd rece ceeehice e enei a ii TA ea 24 1 1 1 2 Chapter 1 Overview 1 Chapter 1 Overview The Liebert range of Air Cooled Condensers offer many unique benefits including low profile design antirust aluminum cabinets anti
28. ned on There is hazardous high voltage inside the electrical control box thus non staff operation is strictly prohibited Maintenance Refrigeration system 1 Check that the refrigeration pipes are firmly fixed The refrigeration pipes shall not shake with the vibration of wall earth or equipment frame Otherwise reinforce the refrigeration pipes with fastening objects 2 Check that there is no oil near any refrigeration pipes and make sure that the pipes do not leak Heat exchanger 1 Clean the fins of the heat exchanger regularly 2 Clean the fins of the heat exchanger with compressed air or fin detergent weakly alkaline if the condenser airflow is blocked When the compressed air is used blow the fins in reverse airflow direction Chemical reagent cleaning is strictly prohibited 3 Check for damaged fins and repair them in time 4 Avoid snow accumulation around the condenser in winter Fan Check that the fan runs normally and check it for problems such as abnormal noise vibration and bearing failure If the fan should be replaced refer to Table 4 1 for selecting the fan models Table 4 1 Fan model parameters Model Fan model Fan number Wiring type of fan motor LSF12 FE050 VDK 41 V7 1 Y LSF18 FE050 VDK 41 V7 1 A LSF24 FE071 SDK 6F V7 1 A LSF32 FE071 SDK 6F V7 1 Y LSF62 LSF72 LDF62 LDF72 FE071 SDK 6F V7 2 A LSF38 LSF42 LSF52 LDF42 LDF52 FE080 ADK 6N V7 1 A LSF76 LSF85 LDF76
29. nt pressure sensor pressure sensor is configured A04 sensor Replace the pressure sensor and compare the failure Pressure sensor failure results of two sensors The fan speed controller board has a hardware Replace the fan speed controller board and fault then compare the results of two boards A05 EEPROM The fan speed controller board has a hardware Replace the fan speed controller board and read fault fault then compare the results of two boards The SCR temperature sensor is not installed or Check the wiring of SCR temperature sensors SCR its terminal connection is poor J8 SCRTemp see Figure 3 1 for its position temperature Replace the SCR temperature sensor and A06 E SCR temperature sensor failure E eee sensor compare the results of two sensors failure The fan speed controller board has a hardware Replace the fan speed controller board and fault then compare the results of two boards The voltage frequency of power supply is A07 Abnormal wrong Replace the fan speed controller board and frequency The fan speed controller board has a hardware then compare the results of two boards fault Liebert PEX Condenser Technical Manual 20 Appendix 1 Condenser Matching Table Appendix 1 Condenser Matching Table 1 R22 Matching Table See Table 1 for the matching relationships of single circuit condensers for PEX Small Frame Table 1 Matching table of single circuit condensers Model of indoor unit Matching condensers at di
30. nting base for vertical installation is shown in Figure 2 3 and the dimensions of each model are listed in Table 2 5 20 Amplified eo Figure 2 3 Mounting base dimensions for vertical installation top view unit mm part figure Table 2 5 Mounting base dimensions for vertical installation unit mm Installation hole 4 pcs Model Dimension a LSF12 LSF18 830 LSF24 LSF32 LSF38 1280 LSF42 LDF42 LSF52 LDF52 1480 LSF62 LSF72 1780 LDF62 LDF72 1980 LSF76 LDF76 LSF85 LDF85 2280 ae Note 1 The installation holes are long and flat holes It is recommended to use M10 20 bolts to fix the mounting base 2 When one condenser needs to be installed on another one the upper condenser must be installed on a rack and cushion pads should be used between the condenser and the rack for damping It is prohibited to stack two condensers and bolt them together directly Performance Parameters The performance parameters of the condenser include fan design parameters heat exchanging capacity sound pressure level SPL parameters and configuration parameters Fan Design Parameters The fan design parameters of the condenser are listed in Table 2 6 Table 2 6 Fan design parameters Model Fan No Diameter mm nared alla hatad rotation Rated c
31. rface FO 161 gt Fa Ly 161 gt Figure 3 4 Display order of the initial interface 29 Note The pressure value will be displayed as 88 8 on the LED if 1 The pressure sensor is not installed 2 The jumper caps of the J17 and J18 terminals see Figure 3 2 used to configure the current pressure sensor are not installed correctly 3 The pressure sensor has failed Main menu interface The main menu interfaces include the analog main menu interface F current alarm main menu interface A historical alarm main menu interface H and configuration main menu interface C The key functions of the main menu interfaces are listed in Table 3 6 The switching operation processes and orders are shown in Figure 3 5 Table 3 6 Key functions of main menu interface Key Function UP DOWN Switch between the main menu interfaces ENT Enter the submenu interface DOWN key DOWN key DOWN key gt F lq A lq H lq C UP UP UP i i Analog main ke Current alarm main ke Historical alarm main key Configuration main menu interface Y menu interface menu interface menu interface A DOWN key y UP key Figure 3 5 Switch figure of main menu interfaces Liebert PEX Condenser Technical Manual 14 Chapter 3 Fan Speed Controller Analog main menu interface The key functions of the analog
32. set ESC key C03 ESC key C02 Pressure band Pband E 30 C03 Minimum voltage Vmin C04 gt gt C04 Maximum voltage Vmax C05 FAT y 100 C05 Fan number 1 C06 Sensor type C06 C99 Resume the default Y 2 J y c99 DOWN key Figure 3 9 Switch figure of configuration data main menu interface Liebert PEX Condenser Technical Manual 16 Chapter 3 Fan Speed Controller 3 5 Protection Function The fan speed controller can provide a corresponding protection function according to the acquired information The detailed protection functions are as follows e Compressor operation synchronization protection When the compressor operates normally the fan speed controller can provide an output control according to the measured condensing pressure Otherwise the fan power will be stopped Fan power protection 1 Before starting the fan power output if the AC abnormal frequency alarm the normal range of AC frequency is 45Hz 65Hz is detected the fan power output will be stopped until the AC frequency resumes normal Fan power protection 2 If a fault such as fan over temperature phase loss alarm or SCR over temperature occurs during single fan configuration the fan power output will be stopped until the fault is removed When the temperature rises up to 100 C the SCR will cut off the fan power when the temperature drops down to 70 C the fan power will be restored Fan power protection 3 When a single fan is configured if
33. setting voltage Vinax See Table 2 11 60 100 5 Fan number 1 1 2 6 Pressure sensor type 2 current type Tevellage type 2 current type Liebert PEX Condenser Technical Manual Chapter 3 Fan Speed Controller 11 an Note 1 The configured fan number must be the same as the number of the actual fans Otherwise a false alarm will appear 2 The configured type of the pressure sensor must be the same as the actual type Otherwise the pressure will not be measured accurately and the deviation will be increased during the control process 3 2 Wiring Terminal The wiring terminals are located on the fan speed controller board Their distributions are shown in Figure 3 2 and the definitions are listed in Table 3 2 Refer to Appendix 2 Circuit Diagram for connections J8 SCRTemp LCD and keys D15 5 f 5 elo fe ood w LO 9 0 0 0 y EL v9 vo eH J3 HP1 uo o J4 HP2 317 Y eH J14 HP2 o P O J18 H H J15 HP1 L3 10 EH J5 Out Temp al Lolo EBH J11 RS232 L1 BH J7 Fan1Sta PE EH J10 Fan2Sta IL J6 CompSta O D16 D22 Figure 3 2 Layout of wiring terminals Table 3 2 Definitions of wiring terminals Sil
34. the 20AWG 0 52mm cable for the condenser startup stop signal cable For cables connection see Appendix 2 Circuit Diagram Liebert PEX Condenser Technical Manual 4 Chapter 2 Technical Parameters 2 2 Mechanical Parameters 2 2 1 Mechanical Parameters Of Condenser The dimensions of the condenser with vertical placement are shown in Figure 2 1 and the mechanical parameters are listed in Table 2 3 Ww A i iced H o 4 Front view Side view Figure 2 1 Dimension figure double fans Table 2 3 Mechanical parameters Weight Di i Model eg pensions in Liquid pipe diameter mm Discharge pipe diameter mm kg L H W LSF12 80 924 990 599 16 22 LSF18 80 924 990 599 16 22 LSF24 105 1374 990 689 16 22 LSF32 110 1374 990 689 16 22 LSF38 120 1374 990 695 16 22 LSF42 130 1574 1273 695 16 22 LSF52 140 1574 1273 695 22 28 LSF62 150 1874 1273 689 22 28 LSF72 150 1874 1273 689 22 28 LSF76 220 2374 1273 695 22 28 LSF85 230 2374 1273 695 22 28 LDF42 130 1574 1273 695 16 22 LDF52 140 1574 1273 695 16 22 LDF62 160 2074 1273 689 22 28 LDF72 160 2074 1273 689 22 28 LDF76 220 2374 1273 695 22 28 LDF85 230 2374 1273 695 22 28 Liebert PEX Condenser Technical Manual Chapter 2 Technical Parameters 5
35. ture sensor failure Pec 0 X y 7 Abnormal frequency UP key No alarm Analog main menu Figure 3 8 Switch figure of historical alarm main menu interface Configuration main menu interface AN Note The configuration main menu interface is designed only for maintenance personnel to set parameters others are prohibited to operate it The key functions of the configuration main menu interface are listed in Table 3 10 The switching operation processes and orders are shown in Figure 3 9 Table 3 10 Key functions of configuration main menu interface Key UP DOWN Function Switch between ID Change the ID value ENT Confirm the changed ID value ESC 1 2 1 Enter the changing interface of ID value 2 1 Return to the configuration main menu interface C 2 Return to the configuration value change submenu interface from the configuration ID selected submenu interface 3 Return to the configuration value change submenu interface from the prompt interface 888 of successful change Configuration main menu interface C ENT key ESC key voc wy A Configuration ID Configuration value 888 Prompt interface of selected submenu changed submenu using successful change P key DOWN and UP keys C01 A r 13 D Configuration ID definitions c02 4 ENT key C01 Pressure set P
36. urrent A Rated power kW m h speed rpm LSF12 1 500 5450 1066 0 79 0 49 LSF18 1 500 7800 1374 1 45 0 79 LSF24 1 710 13600 900 1 65 0 88 LSF32 1 710 8150 690 1 05 0 62 LSF38 1 800 15800 650 2 4 1 05 LSF42 1 800 15800 650 2 4 1 05 LSF52 1 800 14000 650 2 4 1 05 LSF62 2 710 25600 900 3 3 1 76 LSF72 2 710 25600 900 3 3 1 76 LSF76 2 800 31600 650 4 8 2 1 LSF85 2 800 28000 650 4 8 2 1 LDF42 1 800 15800 650 2 4 1 05 LDF52 1 800 14000 650 2 4 1 05 LDF62 2 710 25600 900 3 3 1 76 LDF72 2 710 25600 900 3 3 1 76 LDF76 2 800 31600 650 4 8 2 1 LDF85 2 800 28000 650 4 8 2 1 Liebert PEX Condenser Technical Manual 2 3 2 Chapter 2 Technical Parameters 7 BA Note 1 The rated airflow rated rotation speed rated current and rated power are the parameters of the fan operating at 400V which is provided by the factory 2 The power supply of the condenser as determined by the rated current in Table 2 6 is provided by yourself on site Heat Exchanging Capacity The heat exchanging capacities unit kW of each model are listed in Table 2 7 and Table 2 8 Table 2 7 Heat exchanging capacities R22 Model TDC 10 12 15 18 20 LSF12 8 1 10 6 14 3 17 9 20 3 LSF18 8 8 12 2 16 7 20 9 23 5 LSF24 15 3 19 8 26 3 32 3 35 9 LSF32 18 0 23 1 30 5 36 6 41 0 LSF38 24 9 31 8 41 5 50 7 56 6 LSF42 28 6 36 2 47 6 58 1 64 7 LSF52 35 3 44 8 58 9 71 9 80 1 LSF

Liebert PEX Condenser Technical Manual

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