Liebert PEX Condenser User Manual
Contents
1. Appendix 1 Circuit Diagram L1 103 Pressure sensor 2 Pressure sensor 1 06 10 11 fCompressori Black Black White Brown Orange _ signal ___i J9321 J3 HP1 J4HP2 J14HP2 J15 HP1 J5 OutTemp J11 RS232 J7 Fan1Sta J10 Fan2Sta J6 CompSta wiv u L3 L2 L1 PE 04 04 04 L1 06 10111 05 Shell connecting 93 03 03 03 Black Black BlackBlack White Biovail Grande to the earth Black Black Black Olivine Olivine 12 els 6 7 S elo lO Wiring terminal E 7 K Aircircuit 7 block breaker 2 2 12 13 14 15 16 DIe 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 pS 1L1 312 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 01 012. Figure 1 3 PEX condenser double fans dual circuit 1 4 Technical Parameters 1 4 1 Mechanical Parameters The condenser structure is shown in Figure 1 4 The mechanical parameters of each model are listed in Table 1 2 Ww i L bo H i UA B T mo oo Front view Side view Figure 1 4 Structure double fans unit mm Table 1 2 Mechanical parameters Fan di t Di i Model Weight kg A Fan number mension MM mm L H W LSF12 80 500 1 924 990 599 LSF18 80 500 1 924 990 599 LSF24 105 710 1 1374 990 689 LSF32 110 710 1 1374 990 689 LSF38 120 800 1 1374 990 695 LSF42 130 800 1 1574 1273 695 LSF52 140 800 1 1574 1273 695 LSF62 150 710 2 1874 1273 689 LSF72 150 710 2 1874 1273 689 LSF76 220 800 2 2374 1273 695 LSF85 230 800 2 2374 1273 695 LDF42 130 800 1 1574 1273 695 LDF52 140 800 1 1574 1273 695 LDF62 160 710 2 2074 1273 689 LDF72 160 710 2 2074 1273 689 LDF76 220 800 2 2374 1273 695 LDF85 230 800 2 2374 1273 695 Liebert PEX Condenser User Manual Chapter 1 Overview 3 1 4 2 Mounting Base Dimensions Mounting base dimensions for horizontal installation The mounting base figure for horizontal installation is shown in Figure 1 5 and the specific mounting base dimensions of each model are listed in Table 1 3
3. 0 ce eeccceeeeeeeeeeeeeeeeeeeneeeeeeaeeeseeeeeeesaeeeeeeeaaeeeseeeaeesenneeeeseaeeeeeneaees 4 Chapter 2 Installation Ame see ann ee ei a eee 5 2 1 Moving Unpacking And INSpectiON oooccccnonicinoccccnononcncnonannnn non nnnnno non crono n nn ran n nn rre rre r nen cnn ran nn nene rn eran nn anar EEEE 5 2 2 Installation Notes sieniin nie A iz 6 2 3 Space RequIreMeNntS iia 6 2 4 nstallation Procedures tiara aid 7 Chapter 3 Application Of Fan Speed Controller oo eeccceeececeeeneeeeenneeeeeeeeeeeeeneeeeeeaeeeseeaaeeeeneeeseeaeeeseeaeeeseneeeeeseeeeeseaas 9 3 1 Wiring Terminal Siesa weaved ee eee ev et ee i en ee 9 RM a a a ned ee ee ee en tee eee ie eae ee 10 3 3 Operation Description Of HMI 2 ci i ae ei ia ee ee oti aie 11 3 3 Initial Intefa CE s s2h cis shtes ees oni ie eee Satine ii oe ee eee eels ee ae eee 11 3 3 2 Main Menu Interface A tr 11 Chapter 4 Maintenance And Troubleshooting ooooccinnncccnnnoccconoconnnononononononnnn nono nnn nan nn nr nano rra rn nn nn nn rr nnn nr arar rra r nera 14 4 Malt Mannie curia 14 4 2 TroubleShOOting tii Aida 15 Appendix 1 Circuit Diarra ataca 16 1 1 1 2 1 3 Chapter 1 Overview 1 Chapter 1 Overview This chapter introduces the classification and models model description main components and technical parameters of the Liebert PEX condenser condenser for short Classification And Models The condenser is classified into two types single circuit
4. y INN Bs E D JD Amplified part figure Installation holes _ 8 holes in total I Figure 1 5 Mounting base figure for horizontal installation unit mm Table 1 3 Mounting base dimensions for horizontal installation unit mm Moda Dimension C xF xD cs 675 x 837753 E 676x 837753 LSF24 126 837759 152 126 837759 LSF38 126 837753 2 1328 112053 SF52 1328 112053 LSF62 1626 x 1120 x 53 LDF85 2126 x 1120 x 53 LSF72 1626 x 1120 x 53 Ea Note The installation holes are long and flat holes It is recommended to use M10 x 20 bolts to fix the mounting base Mounting base dimensions for vertical installation The mounting base figure for vertical installation is shown in Figure 1 6 and the specific mounting base dimensions of each model are listed in Table 1 4 20 AA l i i oA g 8 Y co Figure 1 6 Mounting base figure for vertical installation top view unit mm Table 1 4 Mounting base dimensions for vertical installation unit mm Model Dimension a LSF12 LSF18 830 LSF24 LDF32 LSF38 1280 LSF42 LDF42 LSF52 LDF52 1480 LSF62 LSF72 1780 LDF62 LDF72 1980 Liebert PEX Condenser User Manual 4 Chapter 1 Overview Model Dimension a LSF76 LDF76 LSF85 LDF85 2280 ian Note 1 The installation holes are long and flat holes It is recom
5. Pin 3 normally open terminal of relay which is used for AC output Input terminal of voltage pressure sensor 1 J3 HP1 pee eS eee Pin 1 positive terminal of 5V power i Pp ra oval 5 Pin 2 input terminal of 0 5V 4 5V pressure voltage signal J4 HP2 De ONA ser Age PESSE SERO 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 Current pressure sensor the short circuit ring must be installed the j J17 J18 Jumpers of current pressure sensor OT eME Voltage pressure sensor the open status of jumpers must be kept Liebert PEX Condenser User Manual 10 3 2 Chapter 3 Application Of Fan Speed Controller Silk print Definition Definition of pins Input terminal of ambient temperature sensor Pin 1 input terminal of temperature signal J5 Out T Out Temp spare Pin 2 signal ground Pin 1 communication ground Pin 2 reception terminal of communication Pin 3 transmission terminal of communication Serial communication interface used for J11 RS232 maintenance Detecting terminal of fan 1 over temperature J7 Fan1Sta ste Pin 1 output terminal of 19Vac signal Detecting terminal of fan 2 t t SCANIA Oi An AONA A Pin 2 return terminal of 19Vac signal state J6 CompSta Detecting term
6. be generated Refer to Configuration data main menu interface in 3 3 2 Main Menu Interface for detailed settings Wiring Terminals The wiring terminals are located on the fan speed controller board see Figure 2 5 and Figure 2 6 Their distribution is shown in Figure 3 1 and the definitions are listed in Table 3 1 Refer to Appendix 1 Circuit Diagram for detailed connections J8 SCRTemp LCD and keys D15 A e Ei 388 mg w 0 ama alia 9 vio Si J3 HP1 bH J4 HP2 U O HP2 O J17 4 H J14 HP2 Ji o J18 H H J15 HP1 L3 O E J5 Out Temp Lolo E J11 RS232 L1 10 EH J7 Fan1Sta PEO E J10 Fan2Sta a J6 CompSta O O D16 D22 Figure 3 1 Layout of wiring terminals Table 3 1 Definitions of wiring terminals Silk print Definition Definition of pins PE protection earth L1 L2 L3 three phase AC input J1 AC I O terminal U V W three phase AC output which connects with the power supply terminals The middle terminal pin without logo is reserved Pin 1 normally closed terminal of relay which is reserved J9 Passive dry contactor relay output for the Pin 2 common terminal of relay which is used for AC input power switch of fan power supply contactor
7. external power cable whose inner diameter is d10mm 2 After connecting the external power cables apply waterproof sealant treatment to ensure the good waterproof performance of electrical control box 3 The phase sequence of three phase AC input L1 L2 L3 must be correct Otherwise the fan speed controller will generate the phase loss alarm and there will be no AC output 4 For dual circuit condenser such as LDF42 LDF52 LDF62 LDF72 LDF76 and LDF85 the four condenser start stop signal cables should be paralleled at the terminal block of indoor unit before connection for single circuit condenser the two condenser start stop signal cables can be connected directly Charging refrigerant and adding cooling oil Refer to 2 6 Installing Unit Pipes in Liebert PEX Series Air Conditioner User Manual for charging refrigerant and adding cooling oil Liebert PEX Condenser User Manual 3 1 Chapter 3 Application Of Fan Speed Controller 9 Chapter 3 Application Of Fan Speed Controller This chapter introduces the use of the fan speed controller which includes the definitions of wiring terminals introduction of human machine interface HMI and operation of HMI This chapter is mainly provided for the factory maintenance personnel It is recommended that users should not operate the fan speed controller unless necessary OQ Note The configured fan number must be the same as the number of the actual fans or else a false alarm will
8. the 20AWG 0 52mm cable as the condenser start stop signal cable 2 The outdoor air cooled condenser requires a three phase neutral and earth power supply The indoor PEX unit is the recommended point of connection for this electrical service and includes a three pole circuit breaker rated at 16 amps 3 The cables should not contact hot objects such as the copper pipe and water pipe without insulation to avoid damaging the insulation layers 4 The cables should be connected in accordance with the local regulations 2 Connect the cables See Figure 2 5 Figure 2 6 and Appendix 1 Circuit Diagram for the connections of external power cables Liebert PEX Condenser User Manual 8 Chapter 2 Installation T EEN 6 Waterproof joint of external power cables by others o olalolal it CHIRE o Accessing terminal of external Fan speed controller board power supply single fan Figure 2 5 Connection figure of single fan external power cables taking LDF42 for example R Waterproof joint of external power cables by others o fo e Accessing terminal of external Fan speed controller board power supply double fans Figure 2 6 Connection figure of double fans external power cables taking LDF62 for example ma Note 1 The external power cables and compressor signal cables enter the electrical control box through the waterproof joint of
9. 09 02 02 02 02 09 External power A ea Remark U1 y TBU 1 TBH 1 Connect the pressure sensor 1 only when PEX Fan1 remote a Eb 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 User 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 l
10. E Next Generation Critical Cooling for Room and Row Liebert PEX Efficiency And Reliability For High Availability Cooling Condenser User Manual 4 EMERSON Network Power Liebert PEX Condenser User Manual Version V1 0 Revision date May 27 2010 BOM 31011829 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 1 OVOrviw ss secscse sesetecsecentgeeacveus a rentes sveenteneesaboes 1 1 1Classification And Models iie inie tiid des scece di daceceeusucesdauetvecgdacteedeadetesdoughdeslonetescdensesvoueluesadenes 1 12 Mode Descirti ails ei pines ERGE ed ee peep vs A E E E VEE EA ee eee epee 1 123 Main COMpPOrne A O tis T E ETT 1 1 4 Techinical Parameters diicipi e cbeice Seaweeds Ai A A ia 2 1 41 Mechanical Parameters vu pci 2 1 4 2 Mounting Base DIMENSIONS sprosi rei a a at de 3 1 4 3 Parameters Of Operating Environment ec ceeeeeeeceeeeeeeeeneeeeeeaeeeeeeeeeeesaeeeseeaaeeeseeeeeeesneeeseenaeeeeeenaees 4 1 4 4 Parameters Of Storage Environment
11. ack Black peal ase aie ERRE L i L J9321 J3 HP1 J4 HP2 J14HP2 J15HP1 J5 OutTemp J11 RS232 J7FantSta J10 Fan2Sta J6 CompSta W V U L3 L2 L1 PE __ Shell connecting to the earth 03 03 03 L1 04 04 05 99 02 02 02 01 02 Black Black Black Black Red Orange Olivine Black Black Black Black Olivine x x HL 1 lallal als 6 D ES Wiring terminal 7 y A 7 a s Air circuit breaker 2 gt block Ne 8 9 10 41 12 13 14 Black Black Black Black Red Orange Black Olivine Ed tO a0 06 06 06 07 08 09 01 01 Black Black Black 1L1 3L2 5L3 A1 NO L Contactor 1 Isolation switch 271 4T2 6T3 A2 NO Black Black Black O E k ARS L3 12 11 N PE 01 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 User Manual 17
12. al 14 4 1 Chapter 4 Maintenance And Troubleshooting Chapter 4 Maintenance And Troubleshooting This chapter introduces the maintenance and troubleshooting of the condenser Users should check the condenser regularly and solve the problems in time co Note 1 The maintenance of the condenser must be done by technicians 2 Except for the commissioning items that must be carried out with power on during maintenance the power of the indoor unit and the air switch of the condenser must be cut off 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 on the accessories of all refrigeration pipes and make sure that the pipes do not leak Heat exchanger 1 Clean the fin of the heat exchanger regularly 2 Clean the fin of the heat exchanger with compressed air or fin detergent weakly alkaline if the condenser airflow is blocked Inverse airflow is good when the compressed air is used 3 Check for damaged fins and maintain them in time 4 Avoid snow accumulation around the condenser in winter Fan Check that the fan runs normally Check it for problems such as abnormal noise vibration and bearing failure Fan speed controller Check that the fan speed controller board operates normally If no
13. and dual circuit The single circuit has a set of discharge liquid pipe to match the single refrigeration system of indoor unit The dual circuit has two sets of discharge liquid pipes to match the two separate refrigeration systems of indoor unit The condenser is available in 17 models The classification and models are listed in Table 1 1 Table 1 1 Condenser models Classification Model Single circuit LS12 LS18 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 circuit with fan speed controller DF dual circuit with fan speed controller Liebert Figure 1 1 Model description Main Components The main components of the condenser include the heat exchanger fan fan speed controller and pressure sensor The heat exchanger is inside the condenser and the appearance and position of other components are shown in Figure 1 2 and Figure 1 3 ECB electrical control box with a fan speed controller inside Isolation switch Pressure sensor Figure 1 2 PEX condenser single fan single circuit Liebert PEX Condenser User Manual 2 Chapter 1 Overview Fans Isolation switch Electrical control box with a fan speed controller inside Pressure sensors 2 pcs
14. ding charges from the indoor and outdoor units Installing pipelines jan Note 1 Protect copper pipes from heat sources Isolate copper pipes from structures or other obstacles using rigid supports Avoid dust water vapor and irrelevant objects from entering copper pipes 2 Use a good quality silver based solder for all brazed connections Use refrigeration grade copper pipes and fittings throughout the installation Purge all pipes with nitrogen during brazing to prevent oxidation 1 Identify the pipe sizes Refer to 2 6 Installing Unit Pipes in Liebert PEX Series Air Conditioner User Manual for pipe sizes 2 Identify the condenser installation height Refer to 2 6 Installing Unit Pipes in Liebert PEX Series Air Conditioner User Manual for installation height 3 Install the pipes Install the pipes according to local and national codes and standards Connecting external power external power supply of the condenser 1 Identify the cable specifications Select the power supply cables and start stop signal cables of the condenser according to site conditions such as the distance between the indoor unit and the condenser Table 2 1 Operation current of fan under 400V voltage Condenser Model FLA A LSF12 0 79 LSF18 1 45 LSF24 1 65 LSF32 1 05 LSF38 LSF42 LSF52 LDF42 LDF52 2 4 LSF62 LSF72 LDF62 LDF72 3 3 LSF76 LSF85 LDF76 LDF85 4 8 an Note 1 It is recommended to use
15. e equivalent distance between the indoor unit and the condenser exceeds 30m refer to 5 1 Refrigerant Tubing System in Liebert PEX Series Air Conditioner Technical Manual for the requirement of the line equivalent length 1 4 4 Parameters Of Storage Environment Refer to Table 1 6 for parameters of storage environment Table 1 6 Parameters of storage environment Item Requirement Storage environment 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 Otherwise the performance needs to be Storage time ges re calibrated Liebert PEX Condenser User Manual 2 1 Chapter 2 Installation 5 Chapter 2 Installation This chapter introduces the moving unpacking inspection installation notes space requirements and installation procedures Moving Unpacking And Inspection Moving It is recommended to use the mechanical transport equipment such as a forklift or a crane when unloading and transferring the condenser closest to the installation site When a forklift is used insert the tines of the forklift shown in Figure 2 1 taking the single fan condenser for example a A O Cy ZO Y Figure 2 1 Forklift direction When a crane is used refer to Figure 2 2 to lift the package taking the double fans condenser for example an No
16. eader 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 Services 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 UM
17. ers of the main menus Liebert PEX Condenser User Manual 12 Chapter 3 Application Of Fan Speed Controller Analog main menu interface Press the ENT key to enter the analog submenu interface when the current main menu interface shows F the symbol of analog main menu The switching operation processes and orders of the analog submenu are shown in Figure 3 5 Analog main menu F ak y DOWN key F01 16 1 F02 16 1 F03 0 cw lt F04 15 F05 60 y Fos 88 ENT key Analog submenu shows the ID and values circulary UP key lt q Initial interface A Analog ID definitions F01 The maximum pressure between the pressure 1 and pressure 2 88 8 will be shown when the pressure sensor is disabled F02 Pressure 1 F03 Pressure 2 F04 Ambient temperature F05 SCR temperature F06 Output voltage percentage Figure 3 5 Switching operation processes and orders of the analog submenu Current alarm main menu interface Press the ENT key to enter the current alarm submenu interface when the current main menu interface shows A the symbol of current alarm main menu The switching operation processes and orders of the current alarm submenu are shown in Figure 3 6 See Table 4 1 for generating conditions and troubleshooting Current alarm main menu interface A ESC key ENT key When there is an alar
18. he larger of condensing pressure 1 and condensing pressure 2 when the fan speed controller is powered on initially However the pressure value will be displayed as 88 8 on the LCD if 1 The pressure sensor is not installed 2 The jumper cap of current pressure sensor is not installed 3 The pressure sensor is disabled The display order is shown in Figure 3 3 the 16 1 is only an example and the actual value is determined by the sampling result F01 Ha 161 pa Fo pa 16 1 gt Figure 3 3 Display order of the initial interface 3 3 2 Main Menu Interface Press the ESC key on the initial interface and the main menu interface will appear on the LCD The main menu interfaces include the analog main menu interface current alarm main menu interface historical alarm main menu interface and configuration main menu interface Press the UP key and DOWN key to select a different main menu interface and press the ENT key to enter the submenu of the current main menu on the main interface The switching operation processes and orders of the main menus are shown in Figure 3 4 DOWN key DOWN key DOWN key o r __ F A i H i Cc UP UP UP p 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 4 Switching operation processes and ord
19. here is no steam or waste heat around 2 If possible the horizontal installation is recommended to reduce the noise 3 The condenser should be installed away from the residential areas 15m 4 Be careful not to damage the waterproof layer and observe the local regulations when the condenser is installed on the roof of the building 5 Position the condenser higher than the indoor unit to ensure normal oil return 6 Follow the installation arrows on the condenser for correct installation direction 2 3 Space Requirements aa Note 1 A 4000mm clearance is required around the condenser air outlet 2 600mm service spaces are required on the four sides of the condenser The condenser needs sufficient installation and service space around the installation place The specific space requirements are shown in Figure 2 3 and Figure 2 4 Airflow Airflow 7 1200 600 p Re ig atom Figure 2 3 Horizontal installation space requirement unit mm 4000 600 Airflow lt q Ze Figure 2 4 Vertical installation space requirement unit mm Liebert PEX Condenser User Manual 2 4 Chapter 2 Installation 7 Installation Procedures Qu Note Before commencing installation hot works release all nitrogen hol
20. inal of compressor state Note J8 SCRTemp in Figure 3 1 is the interface of fan speed controller board and not to be used by users J10 Fan2Sta HMI The fan speed controller operation and setup is provided through indicators RS232 serial communication port keys and LCD Indicators There are three indicators see Figure 3 1 on the fan speed controller board See Table 3 2 for the functions of indicators Table 3 2 Functions of indicators Silk print Definition Color State Function On The CPU circuit of fan speed controller board is D16 Power indicator Green supplied with 5V power Off The fan speed controller board is faulty On or off The fan speed controller board is faulty D22 Run indicator Green Blinking at 1Hz slowly The system is running normally without alarm Blinking at 5Hz quickly There is an alarm or the compressor is shut down The control switch which supplies the AC contactor Power switch controlling Red with the driving power is open indicator of AC contactor off The control switch which supplies the AC contactor with the driving power is closed On D15 RS232 serial communication port The RS232 serial communication port is a port to connect the computer using factory defined protocol It is used for factory commissioning and maintenance Keys and LCD The keys and LCD which can realize the functions in Table 3 3 provide the HMIs for main
21. m the XX of alarm ID is the number from 00 DOWN key or AXX No alarm AXX AXX A05 AXX UP key A06 Y A07 Current alarm ID definitions A00 A01 A02 A03 A04 Phase loss alarm SCR over temperature Fan 1 over temperature Fan 2 over temperature Pressure sensor failure EEPROM read fault SCR temperature sensor failure Abnormal frequency Figure 3 6 Switching operation processes and orders of the current alarm submenu Liebert PEX Condenser User Manual Chapter 3 Application Of Fan Speed Controller 13 Historical alarm main menu interface Press the ENT key to enter the historical alarm submenu interface when the current main menu interface shows H the symbol of historical main menu The switching operation processes and orders of the historical main menu are shown in Figure 3 7 Historical alarm main j 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 ts e the historical alarm ID When there is no alarm will be shown DOWN Ta Historical alarm ID definitions 0 Phase loss alarm SCR over temperature Fan 1 over temperature Fan 2 over temperature Pressure sensor failure EEPROM read fault SCR temperature sensor failure Abnormal freq
22. mended to use M10 20 bolts to fix the mounting base 2 The upper condenser must be installed on a rack during vertical installation and the cushion pads should be installed between the condenser and the rack for reducing vibration It is prohibited to stack two condensers through bolt connection 1 4 3 Parameters Of Operating Environment Refer to Table 1 5 for parameters of operating environment Table 1 5 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 lt AH lt 20m Installation mode horizontal or vertical mode Outdoor temperature 20 C 45 C Low temperature accessories are required if the temperature Ambient temperature is between 35 C and 20 C Ambient relative humidity Outdoor humidity 5 RH 95 RH Operation power 400V 10 50Hz Altitude lt 1000m Derating is required if the altitude exceeds 1000m Protection level Electrical control box IP55 unit IP20 fan motor IP54 Note Condenser fins have a corrosion resistant coating designed to provide maximun life expectancy for the heat exchanger and protect the aluminium fins from harsh environments The high performance coating has been tested for 2000 hours exposure to a 5 neutral salt spray test in accordance with ASTMB117 without impact to the coating aa Note When th
23. of two boards A05 EEPROM The fan speed controller board has a Replace the fan speed controller board and compare read fault hardware fault the result of two boards The SCR temperature sensor is not Check the wiring of SCR temperature sensors J8 SCR installed or its terminal connection is poor SCRTemp see Figure 3 1 for its position Replace the SCR temperature sensor and compare A06 temperature SCR temperature sensor failed E ee p i the result of two sensors sensor failure The fan speed controller has a hardware Replace the fan speed controller board and compare fault the result of two boards The frequency of power supply voltage is A07 Abnormal wrong Replace the fan speed controller board and compare frequency The fan speed controller has a hardware the result of two boards fault User Manual 16 Appendix 1 Circuit Diagram Appendix 1 Circuit Diagram ba foz Pressure sensor 2 Pressure sensor 1 ia Compressor AAE AN Red Orange signal Bl
24. t replace it as illustrated in the following paragraph CO Note Note that the positions of the bolt installation holes on the fan speed controller could be different on the actual product The fan speed controller is inside the electrical control box see Figure 1 2 and Figure 1 3 Rotate the isolation switch to OFF and then remove the cover plate of the electrical control box as shown in Figure 4 1 Remove the cover plate of the electrical control box before removing the fan speed controller board Except for the seven bolts in Figure 4 2 other bolts are prohibited to remove The bolt 1 and bolt 2 which are used to fix the heat sink on the fan speed controller board must be fastened firstly The heat sink must cling to the floor of the electrical control box After installing the heat sink use other five bolts to fix the fan speed controller board OFF EN ON Figure 4 1 Fan speed controller board Liebert PEX Condenser User Manual 4 2 Troubleshooting Chapter 4 Maintenance And Troubleshooting 15 Heat sink E a i y o Bolt 1 Fan speed controller board Bolt 2 id Figure 4 2 Removing the fan speed controller board See Table 4 1 for alarm troubleshooting Liebert PEX Condenser Table 4 1 Table of alarm troubleshooting Alarm Alarm name Cause Troubleshooting number ID One phase or two phases of three phase p FOR p Check that the
25. te When lifting the package fix the cable by leading it through the slots located 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 inside and resulting in system leakage Figure 2 2 Crane lifting Unpacking Remove the timber frame package and foam of the condenser but reserve the protection cardboard of fins The protection cardboard of fins and the cushion pad of U tube located at the end of the condenser should be removed after the condenser is in its installation position Liebert PEX Condenser User Manual 2 2 Chapter 2 Installation aa Note 1 If the condenser is to be placed horizontally you should complete the installation of legs while the condenser is located vertically 2 When moving the condenser by hand to avoid distortion and system leakage do not touch the copper pipes Inspection After the product arrival you should check the accessories against the packing list If any parts are found missing or damaged please report to the carrier immediately If any covert damage is found please report to the carrier and the distributor immediately Installation Notes The installation notes of the condenser are as follows 1 To ensure the heat dissipation capacity install the condenser in the place with smooth airflow Do not install it where the coil of the condenser may be obstructed by dust or snow Ensure that t
26. tenance personnel Refer to 3 3 Operation Description Of HMI for operation of keys and LCD HMI Table 3 3 Function descriptions of keys and LCD NO Function Description 4 Query the acquisition data in real The acquisition data include condensing pressure ambient temperature silicon time controlled rectifier SCR temperature and output percentage gt The current alarm data include phase loss alarm SCR over temperature fan 1 over Query the current alarm data in real 2 ime temperature fan 2 over temperature pressure sensor failure EEPROM read fault alarm SCR temperature sensor failure and abnormal frequency Query the historical alarm data in 3 y The latest saved 100 historical alarms can be queried real time The configured parameters include running pressure pressure controlling range 4 Modify the configured parameters in 9 p 9 P p 9 9 minimum voltage maximum voltage fan number and pressure sensor type or resume the default values real time Liebert PEX Condenser User Manual Chapter 3 Application Of Fan Speed Controller 11 The keys and LCD are on the upper right corner of the fan speed controller board as shown in Figure 3 1 Their appearance is shown in Figure 3 2 LCD Ej ENT key d k ESC key UP key DOWN key Figure 3 2 Keys and LCD 3 3 Operation Description Of HMI 3 3 1 Initial Interface The LCD will alternately display F01 the maximum pressure logo and t
27. three phase voltage is correct voltage are lost Phase loss RE A A00 l r The input connection is reversed Check the input order of wire The fan speed controller board has a Replace the fan speed controller board and compare hardware fault the result of two boards SCR over The fan cannot run normally Check that the fan runs normally A01 iemnerat re The fan speed controller board has a Replace the fan speed controller board and compare P hardware fault the result of two boards The fan cannot run normally Check that the fan runs normally Fan 1 over The AC contactor supplying power for fan Check the wiring of AC contactor detect the auxiliary A02 A03 temperature has fault or its wire cuts off contact state of AC contactor Fan 2 over The fan speed controller board has a i O Replace the fan speed controller board and compare temperature hardware fault the detecting circuit or SCR i oe the result of two boards power supplying circuit has fault The pressure sensor is not installed or its P 7 ies Check the wiring of pressure sensor terminal connection is poor Jumper caps are not used to short terminals Install the jumper cap when the current pressure A04 Pressure J17 and J18 of current pressure sensor sensor is configured sensor failure f Replace the pressure sensor and compare the result Pressure sensor failed of two boards The fan speed controller board has a Replace the fan speed controller board and compare hardware fault the result
28. uency UP key No alarm 1 X ESC key 2 X 99 X NOOR WN gt Frets 0 X Analog main menu Figure 3 7 Switching operation processes and orders of the historical main menu Configuration data main menu interface an Note The configuration data main menu interface is designed only for maintenance personnel to set parameters others are prohibited to operate it Press the ENT key to enter the configuration data submenu interface when the current main menu interface shows C the symbol of configuration data main menu The switching operation processes and orders of the configuration data main menu are shown in Figure 3 8 Configuration main menu interface ENT key ESC key vy A Configuration ID Configuration value 888 Prompt interface of selected submenu changed submenu using successful change Pkey DOWN and UP keys C01 AY r 13 D Configuration ID definitions Coz 4 ENT key C01 Pressure set Pset ESC key C03 ESC key C02 Pressure band Pband E 30 C03 Minimum voltage Vmin c04 gt gt C04 Maximum voltage Vmax C05 ENT key 109 C05 Fan number 1 C06 Sensor type C06 C99 Resume the default Y 2 y c99 DOWN key Figure 3 8 Switching operation processes and orders of the configuration data main menu Liebert PEX Condenser User Manu
Download Pdf Manuals
Related Search