Modular Mini Chiller Service Manual
Contents
1. gt gt C Water Tin C Water Tout gt Run Mod ML gt H Water Tin gt Auxiliary Heat gt Water Tout gt Defrost 1 gt Auto Antifreeze IBS gt User s Setup gt Anti tre T gt Timer Setup gt Temp View gt Ambient T A gt Clock Setup gt Suction gt Suction 2 gt Sound Exhaust 1 4 Backlight Exhaust 2 gt Throttle T1 Ed Throttle T2 gt Quiet Model M tart emory sta Fan gt Fan2 gt Module I gt Fan3 Lp Module 2 gt System Status gt State View gt gt Compressor gt Module3 Compressor 2 gt Water pump _______ Main Menu b H Water Pump gt gt Ass Heat d Ass Heat 2 p Jo gt 4 Valve gt Module 15 gt 4 Valve 2 gt EXV gt Exthalpy Inc EXV gt Exthalpy Inc EXV 2 gt User Para Setup gt Dis T Sensor gt Parameter Setup gt Dis T Sensor 2 Qu Para Water Out EXV ss B Water In EXV Version Manual Defrost 1 User s setup It is the basic setting that commonly used by users such as mode setting and start stop mode2. K g NN wW X D Gl l 2 Gl 1 2 Water Inlet Water Outlet i Basement 1290 2 fixinghole 10 1750 Diameter12mm 800 29 INSTALLATION MODULAR MINI CHILLER 1 4 Installation Clearance Data Integral Type 30 A 9 008 00 2X0841 yooy Aq Y l ejou ay yI RA a S 77 Jayem 05 1 CLW viloq uonepunoj O6z E PE I 9seg 9J9J9U09 A gt 7 1oeosiieqqn eseq a uonepunoj 8 jepno TEN E 0001 lt y 00 000 lt MODULAR MINI CHILLER INSTALLATION 2 WATER PIPING WORK 2 1 Installation Procedure For all guidelines instructions and specifications regarding refrigerant pipework between the indoor unit and the outdoor unit Pleas
3. NERTI 219187 LIQTST NERTI eo ex WX ex LX 1 LX CLX cLX LX 6 t NO 6 eee 10 19880 og 5 306 TH 3009 9d cc i p smo soggy Pog ux lt lt emol cc POO ER NI 0220 7 ule Ue SZNO oe ulen S4 L N 913 N UoneoiunuJuJo pued jenueyy 3 3 Specification of Power Cord amp Air Switch Minimum Sectional Area Minimum Sectional Area ot Bower supply cable Cord mm of Earth Wirelmm oo 5 lt 2E Power Supply 380 415V 3Ph 50Hz HLR35SM NaA M 5G10 0mm2 32 MODULAR MINI CHILLER INSTALLATION Notel 1 The power supply wire must be copper core wire and the working temperature can not be higher than limited value 2 1 the length of power supply wire is longer than 15meters do please increase the section area to avoid any accident due to over load 3 If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard 4 The appliance shall be installed according to national regulations 5 When installing the connection wiring for manual controller the wire must be put inside a separate protective sheath to avoid direct sunshine 3 4 Wiring Diagram 3 4 1 Wiring Diagram
4. 2L Module view View the temperature state malfunction defrosting of the module Parameter setup It can be divided into user parameter setup and system parameter setup 4 Version View the version of the wired controller 5 This Wired Controller also be used in the other heat pump system so some temperature 26 MODULAR MINI CHILLER CONTROL points such as Suction T1 Suction T2 Throttle 1 Throttle 2 and EEV parameter is not used in this heat system 4 SKETCH MAP OF DIP SWITCH Four bit toggle switches are used for indicating hardware address 1 16 of modules with module No displayed in turn on the panel as Module 1 Module 2 Module 16 All of the modules which are connected with one wired controller their toggle switches indicated the address should be different Toggle switches 1 2 3 and 4 are binary code with 1 for the lowest bit and 4 for the highest bit Comparison drawings are as follows Caution only in the condition of power supply shutoff can toggle switches be set Module 1 gt lt mm M MEM unn um 4 p gm X 4 p 8 gt LIN LIN LIN m mm un m mm um 4 XB 4 A 3 4 3 4 a no n uM
5. e oqe uMous 27127 LT LX 199UU09 SIM 7 9 x p eJoo p e 981 SHUN 99 JO 9uo Jeulullaj 9U YJIMS 4 1872 M 99 JOBUUOD JeUBIS Z7WW 9109 e esf e oqe UMOUS 99 uoee 9 eu JOOUUOD 5 ZWW 2 9 02 e esf SEND ueewjeq 199UU09 9109 BY es 2 eu jeeu 104 jeuondo si Jayeay 9114999 preog euw Z LIX Od Jouy eouejsip buo dung sJeunsuo 3y 9 57 104894 01179979 ATELTTXNY OU JO 7 10J98 U09 57 NY JINVN 3009 7H0S ZHOS NE 086 HOS NE AOSE ZHOS NE AOSE NE 086 yomg 4 6 e o fei 2 Cas Bw JA 3 T TH LIOI NETET
6. GREE Modular Mini Chiller Service Manual T1 R410A 50HZ GREE ELECTRIC APPLIANCES INC OF ZHUHAI GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER CONTENTS kA ali asa 4 VMODELS GCIS T 4 iN sicco TYDE RET 4 ZNO MING P RENI 4 ime pz MDG ad E 4 DEL N TION T TT 4 4 PRODUC AMD gy r ae 5 4 1 Product Data at Rated 5 4 2 Operat RANG oou PPS 6 a Mor 6 SPIPINCEDEXOR e bea 6 UNITS CONTRGL 8 LPOPERATION _______ _____ orones 6 UU T UU Uu m 8 1 2 Heating Operaatio re en eee 9 2 MAIN LOGIC 10 2 1 Cooling IVO ette Epor 10 2 2 eating ilan elm 10 2 3 Anti freezing anlaml almasi asm elm ai mma ll dye 11 OMD lt Sarin 11 2 9 CONUO Or Four Way lamak ha adm ade anla an Blind ll aa d ai 11 e P o e e 11 O WIRE REN O EC ON ER OIE ith M Ete pM ci tet Ue NE a
7. Wa wer E 1 Jp 2 1 low 11 12 314 A oe Xea LE fA fel __ AL KM3 These wires conneceted by the customer gt Manual Panel oM Communication DL Wires Module 1 Module 2 Module N 1 Module N N lt 6 i Main Man o 36 eec board 22855 ows gt PC Pes CN33 PC UULU CN33 4 1234 ON 1 2 3 4 ON 3 4 S xn 2 XT XT2 Xr XT2 XT XT2 5 LILALAN LLAIN 052807 LEIN 51677 5167 MI gt En sw EE Flow Switch 380 3N 50Hz 380V 3N 50Hz 380V 3N 50Hz 380V 3N 50Hz JB amp 232 Conversier Long distance Minitor CODE NAME 2 Condenser e Fan Motor 3 OMP1 2 Conpresst X Electric heat er 1 Of compress AP vat Fuse Compressor tact eal AT KM m KM There are no YV1 YV2 LPILLPe 2 n the cooling only unit 33 GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER MAINTENANCE 34 MODULAR MINI CHILLER MAINTENANCE UNITS MAINTENANCE 1 TROUBLE TABLE Name of Error Source i Description Error Signal If the high pressure switch of compressor 1 compressor 2 disconnects the corresponding compressor will stop If both compressors stop the two fans will stop later The error LED of the display board lights and the corresponding alarm mark will be shown in malfunction view Th
8. 4 2 Operation Range Range of Outdoor 16 48 15 28 4 3 Electrical Data 4 3 1 Integral Type Compressor Fan Motor Rated Power Supply HLR35SM NaA M 380 415 50Hz Notes LRA Locked rotor amps A MRC Maximum running current A NRC Nominal running current A 5 PIPING DIAGRAM Outlet Inlet High pressure Relief Flow Expansion switch Shell and tube heat valve switch drum ee Compressor Low pressure DEA switch Cooling circuit m Four way valve Heating circuit po High pressure tank Liquid gas separator EE Aluminum fin copper tube coil GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER CONTROL MODULAR MINI CHILLER UNITS CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Operation Power cooling mode Pump running Outdoor fan and compressor running Temp of inlet water lt Set temp Compressor and outdoor fan stop Compressor stop for 3 min and temp of inlet water Set temp CONTROL MODULAR MINI CHILLER CONTROL 1 2 Heating Operation Power On heating mode Pump running Outdoor fan compressor and valve running Temp of inlet water Set temp Compressor and outdoor fan stop Compressor stop for 3 min and temp of inlet water lt Set temp MODULAR MINI CHILLER CONTROL 2 MAIN LOGIC 2 1 Cooling
9. E bog 2 Module gt m LI i ON LIN E um m E d 1 Cp um uw Note either of HLR35SM NaA M HLR45SM NaA M can work in one system but the address should be different and continuous 27 GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER INSTALLATION 28 MODULAR MINI CHILLER INSTALLATION UNITS INSTALLATION 1 UNITS INSTALL 1 1 Installation Positions For indoor unit e Fix the indoor unit bracket to the wall using appropriate plugs and screws e Hang the indoor unit on the top wall mounting bracket e Fixthe indoor unit at the bottom side using appropriate plugs and screws For outdoor unit e The installation is frost free The space around the unit is adequate for servicing The space around the unit allows for sufficient air circulation There is no danger of fire due to leakage of flammable gas All piping lengths and distances have been taken into consideration 1 2 Matters need Attention The indoor unit is packed in a cardboard box fixed by straps At delivery the unit should be checked and any demage should be reported immediately to the carrier claims agent Check if all indoor unit accessories are enclosed The indoor unit is heavy and should be lifted by two persons 1 3 Dimension Data Integral Type HLR35SM NaA M HLR45SM NaA M
10. Integral Type HLR35SM NaA M X 13 p A aul 22 PP 1 fae ae LE A L3 L3 X13 N E ae S N 93 96 FUL Fue 7 94 978 A El K LI Le 95 98 E j RT7RT8 RII RICRTISRI4 b uper LPeY El BI HPi AE LPA B AM lol 94 7 Y Y OY gy amp 7 47 748 12171 17 749 750 708 707 03 299 9659198 53154 K Xx x K pa K pd K 6116063 6465 66 68169 1 72 10 VS SE A J 7 BJ gt 7 CN40 39 6 6 CNS CN14 8 CN 8 CN29 10 CN58 CN35 CN36 CN3 CNel CN3 CN45 CN43 CN38 Z CX CX ik S2 VS X 6 GND s Z xz AQ ej an 1828384 73 J4 7 S 8586 8788 5 SH 8 T A 6 P 49 50 39 60 A R A R R coe p y 2 X
11. it will not affect the anti freezing protection If the unit is low temperature unit the anti freezing protection is invalid 2 1 3 Stop of the Unit Stop the unit manually or via timer the compressor stops and then the fan stops After certain control time the water pump will stop Stop the unit upon reaching a temperature spots the compressor stops and then the fan stops on condition that both compressor stops The water pump will not stop Disorderly closedown the compressor stops and then the fan stops except the malfunction of the fan After the corresponding compressor stops for a period The water pump will not stop 2 2 Heating Mode 2 2 1 Control of Compressor The control principle is the same with that of cooling mode 2 2 2 Superheat Protection For each module when the superheat temperature is higher than the required value for protection the superheat protection will start then the compressor of this module will stop When the superheat temperature is lower than the required value for resume this system will eliminate the superheat protection When the superheat temperature is between the above two temperature it will not affect the superheat protection 2 2 3 Control of Auxiliary E heater 10 MODULAR MINI CHILLER CONTROL If the control function of auxiliary e heater is switched on in the display board it can be controlled automatically according to the inflow water temperature It is necessary to set an in
12. 1 o 21 BaseFrameAssy 1 1 01282207P _ 1 22 PressureProtect Switch 4602001513 1 23 Inhalation Tube Sub Assy2 04672264 ____ 1 24 Compressor Gasket 021180049 8 34 A 44
13. Mode 2 1 1 Control of Compressor 1 Start stop Control first start first stop first stop first start During running of the unit the compressor is numbered instantly It is controlled according to the principle of first start first stop first stop first start 2 Water Temperature Drop Rise Rate Control The water temperature interval is the main control while the temperature drop rise rate is the auxiliary control This can adapt the load variation of the terminal keeping water temperature stable and avoiding fierce variation In this control mode the system is based on the temperature and temperature drop rate when the water temperature is too high and if the temperature drop is rapid it means the output load is bigger than the terminal load In that case it is not necessary to startup the other compressor The temperature interval and temperature drop is decided by experience other theories and test so that the water temperature can be kept stable and frequent stop can be avoided 2 1 2 Anti freezing Protection For each module when the anti freezing temperature is lower than the required value for protection the anti freezing protection will start then the compressor of this module will stop When the anti freezing temperature is higher than the required value for resume this system will eliminate the anti freezing protection When the anti freezing temperature is between the above two temperature
14. T Sensor1 Dis T Sensor2 Thr Valvel Sensor Thr Valve2 Sensor Suction T Sensor1 Suction T Sensor2 LP Sensor1 Error LP Sensor2 Error H Water in Sensor H Water out Sensor If the last line on the menu is followed with a Y more failures are available below You can press the Down selection button for reading more failures If the first line is followed with a A more failures are available above You can press the Up selection button for reading more failures Press the Exit button to go back to the previous menu Only the lasted four failures are remained even if quantity of history failures is more than 4 In Fig 3 4 2 1 select Clear History Error and press the Confirm button to go to the following interface Clear History Error NO YES Press the Up or Down selection button to convert between NO and YES Press YES to confirm and press NO to quit the menu and go back to the previous menu d Manual Defrost Used for starting or stopping manual defrosting Select Manal Defrost and press Confirm to go to the following page MANUAL X OFF SYS DEFR OFF Anti Fre T XXX X C Press Confirm to start or stop manual defrost and press Exit to quit the interface and go back to the previous menu When manual defrost is on and the two systems do not stop defrosting 22 MODULAR MINI CHILLER CONTROL completely the following prompt will come up Do you need to stop Unit under defrost
15. YES NO Press Up or Down button to convert between YES and NO press Confirm acknowledgement press Exit to quit the menu and go back to the previous menu Note manual defrost is not allowed for two modules simultaneously If manual defrost is started for one module and such function is started for another module the following prompt will appear MOD X is defrosting Don t start current mod now YES NO Press YES for acknowledgement If manual defrost is initiated for a certain module under non manual defrost mode the following prompt will be present Please set the mode To defrost OK 3 Parameter Setup On the Main Menu on the screen select Parameter Setup and press Confirm to go to the page as shown in the following drawing User Setup System Para Setup Press Exit to quit the page and go back to the previous menu Press Up or Down selection button to select a needed setting interface a User level Parameter Set Select the menu and confirm the selection for going to User Para Setup menu Press the Up or Down selection button to select the parameter to be modified and press Confirm to go to the modification page Press the Up or Down selection button for entering parameters and press Confirm or Exit to go back to the parameter set menu Other parameters can be modified in the same way After entered Default Parameter option System will inquire whether use Default Value if YES
16. is choosed 23 MODULAR MINI CHILLER CONTROL then the parameters will be modified to Factory Default Value After modification press the Up or Down selection button to save parameter and quit the item A prompt for asking whether to save the modification comes up again on the screen Select Confirm to save it and go back to the Main menu Please note that only in the above exit way can modifications be saved b System level Parameter Set User shall not use the function unless under instruction of debug personnel if necessary to prevent an accident Code entry is essential for operating the function Button points on how to operate select the menu and confirm the selection and a prompt of code entry appears on the screen press the Up and Down selection buttons to enter correct password press Confirm to confirm it and go to Parameter Set Menu press the Up and Down selection buttons to select parameters to be modified press Confirm to go to modification interface press the Up and Down selection buttons to enter parameter value and press Confirm or Exit to go back to the Parameter Set menu other parameters can be modified in the same way After entered Default Parameter option System will inquire whether use Default Value if YES is choosed then the parameters will be modified to Factory Default Value after modification press the Up and Down selection buttons to select Save and Exit item under the Parameter Set menu and a prompt
17. manually or via timer the water pump will stop 5 min after all the compressor stops 11 MODULAR MINI CHILLER CONTROL 3 WIRED REMOTE CONTROLLER 3 1 Function The display of modular air cooled scroll chiller shows the running parameter in real time It can be connected with the remote control system 3 2 Operation View Power 09 08 02 Mon 15 10 SERIES CHILLER Cool ON Manual 3 Modules 3 bus GAS ens When the display board is energized this LED lights otherwise it is dark When the display board is turned on this LED lights otherwise it is dark Error LED red When there is malfunction this LED lights otherwise it is dark Control the start or stop of the unit Under stop state press the ON OFF button button for 3s to start up the unit Under running state press the 3s to stop the unit Power LED red Running LED green lock of exh RESTORE button Press this button to remove error and lock of exhaust temperature sensor UP button Press this button to move the cursor upward or leftward When modify the data press this button to increase the value DOWN button Press this button to move the cursor downward or rightward When modify the data press this button to decrease the value EXIT button Press this button to return to last page CONFIRM button Press button to enter the next page When modify the data press this button t
18. with communication error its water pump will stop 5 min after the compressor stops 36 MODULAR MINI CHILLER MAINTENANCE 2 FLOW CHART OF TROUBLESHOOTING 1 High Pressure Protection E1 High pressure protection Yes Y Reverse of cooling and heating The fan stops running or reverses during cooling or the water pump is not open or with poor flow volume during heating No Y Expansion valve is not open capillary ruptures or leaks Y Pressure switch is broken shall be normally closed or the wiring is loose No Y Fined heat exchanger is dirty or aging during cooling or shell tube seriously scales during heating Y Filter blocks No Im proper design of waterway pipeline and low flow volume upon stop of terminal No There is air in the system usually happens after repair of unit i M isdeclaring alarm of controller Y Contact with supplier Yes P d ES Adjust operation mode Yes M m Check fan or water pump P Yes Replace expansion valve capillary P i Replace pressure 5 switch orrewire Yes Sy wm Clean heat exchanger EM d lu ss Replace filter Yes MAR NS m Adjust waterway pipeline 4 P Yes a Evacuate or vacuum pumping if necessary AT s Wek Check if itha
19. 8 MODULAR MINI CHILLER 3 Overload Protection E5 Overload protection of compressor Yes Break of compressor protecting module Contact with supplier 4 Discharge High Temperature Protection E4 Discharge high temp protection Yes Leakage of Yes MAINTENANCE e Replace protecting module j Add refrigerant after refrigerant No Expansion valve is not open capillary ruptures or leaks No Filter blocks Yes m leakage detection and compensation E Replace expansion valve capillary Misuse discharge temp sensor easy to happen after repair of unit Replace filter Adjust discharge No Misdeclaring alarm of controller No Contact with supplier temp sensor J S P Checkifithappens frequently If necessary replace mainboard 39 MODULAR MINI CHILLER 5 Phase Inversion missing Protection Power Off Phase inversion missing protection Yes Phase sequence of Yes Adjust connection power supply is wrong N J No x Eds Yes Y Phase missing Check power supply No Inverse protector Yes Replace inverse is broken protector 4 Check if it h gt Misdeclaring alarm Y
20. L X XX XX C Series Chiller Cool Heat Defrost On Off Manual Timer XModules gt The content of default home page menu is dependent on system state XX stands for year month day hour and minute Only one item or none is displayed in representing the start stop state of the system starting method and quantity of linked modules Presence of the at the end means the system is at fault After entering into a menu item if no operation is made on the Wired Controller within 10 minutes the system will automatically go back to the above default home page menu Home Page Press the Exit button on the wired controller at any time for enough times you can go back the default home page menu as shown above 3 4 2 2 Main Menu When home page is present on the screen as shown in the above drawing press the Confirm to enter into the Main Menu and the following items is displayed on the screen User s Setup Module View Parameter Setup Version Press the up or down selection button to choose required function and press the Confirm button to go to the page Only one item or none will be displayed in in the following graph When a line or number is selected it appears as white on black 1 User s Setup The following is basic settings most common for users On the Main menu select the User s Setup and press the Confirm to go to the sub menu as shown in the following dra
21. OFF which means the function is selected or not J Quiet Model Set 17 MODULAR MINI CHILLER CONTROL select Quiet Model press the Confirm button and the subsequent ON or which means the function is selected or not K Memory Start Set Select Memory Start press the Confirm button and the subsequent ON or OFF which means the function is selected or not The function is for selecting whether the unit will memorize its operation state if power supply is shut down 2 Module View When the Main Menu is present on the screen select Module View press the Confirm to go to the pages as shown in the following drawing Module 1 EXISTO Module 2 EXIST Module 3 EXISTO Module 4 EXISTO 1 Module 5 EXIST Module 6 EXISTO Module 7 EXIST NOD Module 8 EXISTO Page 2 Module 9 EXIST Module 10 EXIST NOD Module 11 EXIST Module 12 EXIST Page 3 Module 13 EXISTO NOD Module 14 EXISTO NOD Module 15 EXISTO NOD Module 16 EXISTO NOD Page 4 Press the Exit to quit the page and go back to the previous menu Press the Up or Down button to select a needed module and press the Confirm button to go to corresponding page 18 MODULAR MINI CHILLER CONTROL A module followed with Br means having a failure The following menu will display after going to the module Temp View State Vi
22. OFF A Water In EXV Page 7 Press the Up or Down selection button to convert among the above pages Press the_Exit button to quit the menu page and go back to the previous menu Note above temperature display is dependent on unit model If the temperature sensor is not existent for a certain model None would be present on the display zone for corresponding temperature point Error View Used for checking the failure status of the system Select the Error View and press the Confirm to go to the pages as shown in the following drawings Present Error History Error Clear History Error Press the Exit button to quit the page and go back to the previous menu Press the Up or Down selection button to choose a needed module When Present Error or History Error is selected press the Confirm to go to the following interface XXXXXX XXXXXX are possible failures as listed in the following 21 MODULAR MINI CHILLER Comp 1 HP Pro Comp 1 OverLoad Pro 1 OverLoad Pro Sys 1 Dis HighTemp C Water Flow Switch Fan3 OverLoad Pro Jumper Error Com 2 HP Pro Comp 2 OverLoad Pro Fan2 OverLoad Pro Sys 2 Dis HighTemp H Water Flow Switch Comp 1 LP Pro Comp 2 LP Pro User Anti_ fire Pro Dis T Sensor 1 CONTROL Dis T Sensor 2 C Water in Sensor C Water out sensor Anti Frozen Sensor Defrost T Sensor1 Defrost T Sensor2 Ambient T Sensor Dis
23. U 12 E 12 Gil Oe VIO e edu tente tos an ___ 12 etas 13 3 4 Wired Controller Operation Instructions 13 3 5 Controller Menu Structure eee 26 a SEKBICHNLIAPOPIDIPSWLEPGEL vala l me uos 27 UNITS INSTALLATION ide ETTE ee Res 29 VUNEES INS TAL opp 29 1 4 Installatlorr E N E A OTA 29 1 2 MECG ANCNUON sum 29 DUNS TAS ION Dala a a 29 Installation Glearance salar Ves Ba la a O 30 2 WATER PIPINGWOR S vies setae a ala a la 31 2 1 ke hile gi ge e e gt ge YY 31 2 2 Matters OF ARGON m Li ccn ates DEM pe DM za e len 31 PAP Od a ma 31 SEES IRC WIRING WOR vt vet A 31 A _ _ __ 31 3 2 Electrical Wires are Connected with Consumers essen 32 3 3 SpecificationofPowerCord amp AirSwiteh eee 32 erm le IAG FAI c m 33 UNITS MAINTENANCE amaaan EN 35 I HSOUBEER TABLE 41 tete etc US Oe aa _ __
24. _________________ _ 35 2 FLOW CHARTOF TROUBLESHOOTING pe thee 37 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS seen 41 1 DE mandi maasi Ur 41 42 XPLODED VIEW AND IEEE Ie ni eR pi ei 43 41ExplodedViewandPartslist integrallype 43 MODULAR MINI CHILLER PRODUCT PRODUCT MODULAR MINI CHILLER PRODUCT PRODUCT INTRODUCTION 1 MODELS LIST 1 1 Integral Type Nominal Capacity Appearance Refrigerant Model Name V Ph Hz HLR35SM NaA M 380 415V 3Ph 50Hz HLR45SM NaA M 2 NOMENCLATURE Note 1Ton 12000Btu h 3 517kW 2 1 Integral Type HL R 35 S M Na M 2 4 5 7 1 3 6 Description Options ______ Mini chiller MEME MEM Product type R Heat pump i i 35 35kW Nominal Cooling Capacity 45 5 Refrigeration Circuits Defauli One circuit S Twin circuit PO Module Refrigerant Na R410A Default R22 Voltage M 380 415V 3Ph 50Hz 3 FUNCTION _____ UnitType _ Function Description Interface kit for up to 16 indoor units Memory restart Two circuits optimized design Low noise design Safety and reliability thanks to advance compressor balance control Integral Type Heating Cooling MODULAR MINI CHILLER 4 PRODUCT DATA 4 1 Product Data at Rated Condition 4 1 1 Integ
25. alue is 85 of discharge high discharge compressor 1 compressor 2 is detected the temperature temperature corresponding compressor will stop If both compressors protection of sensor stop the two fans will stop later compressor 1 system 1 The error LED of the display board lights and the compressor 2 system 2 corresponding alarm symbol will be shown in malfunction view The error must be removed manually before the unit resume normal running If the overcurrent of compressor 1 compressor 2 is detected the corresponding compressor will stop If both overcurrent compressors stop the two fans will stop later protector of The error LED of the display board lights and the compressor corresponding alarm symbol will be shown in malfunction view The error must be removed manually before the unit resume normal running overcurrent of compressor 35 MODULAR MINI CHILLER MAINTENANCE The successive detecting time if it is detected that the abnormality lasts for 5s it is error if it is detected that the normality lasts for 3s it is normal When the inflow water temperature sensor is wrong all the compressor of this module will stop immediately When the suction temperature sensor 2 is wrong the corresponding compressor will stop If both compressors stop the fan will stop 30s later As the outflow water temperature sensor is not related to the logic control when there is error the compr
26. d Auto Antifreeze Protection Set Select Auto Antifreeze press Confirm and the subsequent ON or OFF which means the function is selected or not e Timer Setup Select Timer Setup and press Confirm to go to the page as shown in the following drawing Timer Setup XXX Timer XX XX OFF Timer Off XX XX OFF Press Confirm to change a selected object Press Up or Down to change value or state of a selected object This is timing on off time and effective status each week OFF represents the time set is invalid and ON means a valid time set Press the Exit button to quit the page and go back to the previous menu and save set values f Clock Setup Select Clock Setup and press the Confirm button to go to the page The following display is present on the screen Clock Setup 20XX XX XX XX XX XXX Press the Confirm button to change a selected object Press the Up or Down button to change value or state of a selected object Press the Exit button to quit the page and go back to the previous menu and save set values g Sound On set Select Sound press the Confirm button and the subsequent ON or OFF which means the function is selected or not h Backlight On Set Select Backlight press the Confirm button and the subsequent ON OFF which means the function is selected or not I ECO Model Set Select ECO Model press the Confirm button and the subsequent ON or
27. e error must be removed manually before the unit resume normal running high pressure switch of system 1 system 2 high pressure of compressor 1 compressor 2 If the low pressure switch of compressor 1 compressor 2 disconnects the corresponding compressor will stop If both compressors stop the two fans will stop later The error can be removed automatically for 5 times while it can not resume automatically for the 6 time If it is detected for 3 times in one hour it can not resume automatically The corresponding marks will be shown in error view It is required to remove the error low manually low pressure of pressure When the display board is off the low pressure will not compressor 1 switch of be detected In automatic anti freezing and defrosting compressor 2 system 1 mode after startup of the water pump the low pressure will system 2 be detected by pressing heating low pressure button When the display board is on if the low pressure is lower than heating low pressure protection value the controller will send low pressure protection signal The error can not be removed unless repaired by service man When the compressor stops running if the low pressure is lower than heating low pressure the controller will send low pressure protection signal The error can not be removed unless repaired by service man lf the discharge high temperature protection 2130 start protection the resume v
28. e refer to the outdoor unit installation manual The units are equipped with a water inlet and water outlet for connection to a water circuit must be provided by a licensed technician and must comply with all relevant national regulations 2 2 Matters of Attention Air vents must be provided at all high points of the system The vents should be located at points which are easily accessible for servicing An automatic air purge should be used Check the valve is not tightened too much so that automatic release of air in the water circuit remains possible 2 3 Antifreeze by Weigt o d 30 4 Freezing Point 00 0 32 20 4 30 22 Ambient Temperature 8 3 47 11 7 11 16 7 2 Cooling Capacity 0 970 0 965 Correction Factor Water Flow Correction 1 0 1 Factor 0 Factor 3 ELECTRIC WIRING WORK 3 1 Wiring Principle POWER SUPPLY The electrical characteristics of the available power supply must agree with the unit nameplate rating Supply voltage must be within the limits shown See 3 3 for electrical and configuration data FIELD POWER CONNECTIONS All power wiring must comply with applicable local and national codes Install field supplied branch circuit fused disconnect s of a type that can be locked off or open Disconnect s must be located within sight and readily accessible 31 INSTALLATION MODULAR MINI CHILLER 3 2 Electrical Wires are Connected with Consumers
29. es la of controller No Contact with supplier frequently If necessary replace mainboard MAINTENANCE 40 MODULAR MINI CHILLER MAINTENANCE 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 3 1 Integral Type 1 Remove the front case Loosen the tappong screws fixing the front case See Fig 1 Pull down and remove the front case See Fig 2 9 41 MODULAR MINI CHILLER MAINTENANCE 2 Remove electric box Loosen the screws fixing the box cover Remove all pressure switches and temp sensor See Fig 3 Electric box Fig 3 3 the shell and tube heat exchanger welding out the pipes connected to the shell and tube heat exchanger Remove the shell and tube heat exchanger See Fig 4 Shell and tube heat exchanger Fig 4 42 MAINTENANCE 4 1 Exploded View and Parts List Integral Type Exploded 4 EXPLODED VIEW AND PARTS LIST Model HLR35SM NaA M MODULAR MINI CHILLER fF 5 j SY une 2 E CO Lf 43 MODULAR MINI CHILLER MAINTENANCE Parts List Current Divider 03410101 1 17 One way Valve 07135801 1 19 Pressure Protect Switch 4602001510 Separator 07424144 ___
30. essor will not stop but the malfunction is displayed on the display board When the anti freezing temperature sensor and ambient temperature sensor is wrong the compressor of temperature temperature sensor sensor protection this module will stop immediately and the fan will stop 30s later If the defrosting sensor 1 2 is wrong the corresponding compressor will stop during heating mode and cooling mode If there is signal of temperature sensor malfunction and it resume to normal automatically the error mark will be removed automatically But if it occurs 3 times in one hour or it can not resume to normal automatically it is necessary to remove it manually The error LED of the display board lights and the corresponding alarm symbol will be shown in malfunction view When a module detects that the water flow switch is closed in normal state when the water pump is running the water flow switch is open for 10s the compressor of Water flow this module will stop and the fan will stop 30s later The mainboard p switch four way valve remains the original state The expansion era protection valve keeps the initial steps When water flow switch protection occurs for all the modules the water pump will stop after the compressor stops for 10s When the information of the display board is not communication received for 30s this module will stop automatically For mainboard Xo error the module
31. ew Error View Manal Defrost Press the Exit button to quit the page and go back to the previous menu Press the Up or Down selection button to select a needed function and press the_Confirm to go to corresponding page X stands for one number of 1 16 meaning number of the selected module The BD following the State View represents the module provides auto freeze protection operation or defrosting operation The gt following the Error View represents the module is at fault a Temperature View The function is for checking temperature at various temperature points Select Temp View and press the Confirm button to go to the pages as shown in the following drawings C Water Tin Water Tout Water XXX X C H Water Tout XXX X C V Page 1 Defrost T1 XXX X C A Defrost T2 XXX X C Anti Fre T Anti HeatT Ambient V Page 2 Suction 1 XXX X C A Suction T2 Exhaust 1 XXX X C Exhaust T2 XXX X C V Page 3 Throttle T1 XXX X C A Throttle T2 4 19 MODULAR MINI CHILLER CONTROL Press the Up or Down selection button to convert among the above four pages Press the Exit button to quit the menu page and go back to the previous menu When page 1 is present on the screen press the Reset button and the Exit button simultaneously for 3 seconds and C Water Tin and H Water Tin as displayed
32. mpressor stops for a period The water pump will not stop while the four way valve will remain the original state 2 3 Anti freezing Running Under the stop state of any mode except manual defrosting mode the automatic anti freezing function can be switched on via the display board The defaulted setting of this function is OFF For all the modules that reach automatic anti freezing running condition the compressor will run according to the setting condition and the regulation of run for 6min and stop for 4 H 5 min 2 4 Control of Compressor All compressors run according to the principle of first start first stop first stop first start For other information refer to the control section of 1 3 1 and1 3 2 2 5 Control of Four way Valve In cooling mode the four way valve is off In heating mode the four way valve will run after the corresponding compressor runs In defrosting mode the four way valve will be off When eliminating the defrosting function the four way valve runs When stop the unit the four way valve will stop after the corresponding compressor stops 2 6 Control of Water Pump When any of the modules needs to be started up all the water pumps will run When one module stops upon reaching certain temperature spots all the water pumps remain running When one module is stopped manually or via timer or due to malfunction the water pump of this module remains running Only when all the modules are stopped
33. o confirm the value and transfer the cursor 12 MODULAR MINI CHILLER CONTROL 3 3 Display View Power 09 08 02 Mon 15 10 1 C SERIES CHILLER col a Manual 3 Modules 4 Error GAS ese Number of modules The number of connected unit ON OFF mode ON OFF mode of the system 6 Runningmode Display the current running mode 3 4 Wired Controller Operation Instructions 3 4 1 Turning on off of the Unit The unit under non commissioning state can be turned on off via the manual mode or the timing mode The manual mode is given priority to the timing mode eManual mode 1LL Manual start in the unit stop state press the on off button for 3 seconds and start the unit and at that time the operation indicator is on When the compressor begins to run after a delay the manual starting process is finished 2 Manual stop in the unit operation state press the on off button for seconds and stop the unit and at that time the operation indicator is off When the unit stops the compressor immediately ceases and the cooling tower fan the cooling pump and the chilled water pump are shut off The manual stop process is finished When ambient temperature is lower than 16 pressing the start stop button the 13 MODULAR MINI CHILLER CONTROL following prompt window comes up on the manual operator No ON OFF Under low ambient Temp OK Press the Confirm butt
34. on for acknowledgement If ambient temperature sensors of all linked units are at fault pressing the on off button the following prompt window comes up on the manual operator No ON OFF under all ambient temp sensor fail OK Press the Confirm button for acknowledgement In the manual defrosting mode pressing the on off button the following prompt window comes up on the manual operator Don t ON OFF under manual defrost OK Press the Confirm button for acknowledgement By pressing the_up selection button or the_ down selection button you can convert between YES and NO Press the Exit to quit selection and go back to home page When the unit is in the cooling amp heat recovery mode stop state if you select YES and press the Confirm you can go back to the home page and the unit is in the heating amp heat recovery operation state and if you select NO and press the Confirm you can go back to the home page and the unit is in the cooling amp heat recovery operation state eTiming mode After the unit is energized or reset press the Manual Mode to turn on off the unit Conversion between the manual mode and the timing mode is detailed in 3 4 2 2 Main Menu 3 4 2 Menu Operation Instructions 3 4 2 1 Home page When the controller is powered on the microcomputer will make a 3 second automatic detection and the LCD on the wired controller will display the following content 14 MODULAR MINI CHILLER CONTRO
35. ppens m frequently If necessary replace mainboard ee 37 MODULAR MINI CHILLER 2 Low Pressure Protection E3 Low pressure protection Yes Reverse of cooling and heating No The fan stops running or reverses during heating or the water pump is not open or with poor flow volume during cooling No Expansion valve is not open capillary ruptures or leaks No Pressure switch is broken shall be normally closed or the wiring is loose No 1 Fined heat exchanger is dirty or aging during heating Yes Yes MAINTENANCE Adjust operation mode a 4 gt Te A Check fan or Yes Yes Yes water pump Replace expansion valve capillary PS Replace pressure switch or rewire S 7 N b or shell tube seriously scales during cooling 1 Filter blocks No Improper design of waterway Yes m Clean heat exchanger Replace filter pipeline and low flow volume upon stop of terminal No Leakage of Yes Adjust waterway pipeline Add refrigerant after refrigerant Y Misdeclaring alarm Yes leakage detection and compensation y Check if it happens of controller Contact with supplier frequently If necessary replace mainboard 3
36. previously will be converted to C Aver Tin and Aver Tin And press again the Reset button and the Exit button simultaneously for 3 seconds and C Water Tin and H Water Tin will be displayed again As such display can be converted between water inlet temperature and water inlet average temperature Only one item will be displayed in in page 2 When the run mode is cool or defrost Anti Fre T Anti HeatT shows Anti Fre T When the run mode is heat Anti Fre T Anti HeatT shows Anti HeatT Note above temperature display is dependent on unit model If the temperature sensor is not existent for a certain model None would be present on the display zone for corresponding temperature point b State View Used for checking the on off status of motors Select the State View and press the Confirm to go to the pages as shown in the following drawings Fan 1 OFF Fan 2 OFFT Fan 3 Sys State Cool Heat Defrost Anti fre WV Page 1 Compressor 1 ON A Compressor 2 C Water Pump OFFT H Water Pump ON OFF V Page 2 Ass Heat 1 A Ass Heat 2 OFF 4 Valve 1 OFF 4 Valve 2 OFF Page 3 Page 4 20 MODULAR MINI CHILLER CONTROL Exthalpy Inc EXV 1 XXX Step Exthalpy Inc EXV 2 XXX Step Page 5 Dis T Sensor 1 Lock Unlock Dis T Sensor 2 Lock Unlock Page 6 Water Out EXV ON
37. ral Type Models Cooling Capacity Heating Btu h Power input Power Supply Safeties Type Charge Refrigerant k z Type Compressor Z Heat Exchanger Evaporator Water In Out Pipe inch Diameter Heat Exchanger Condenser Fan Motor Power Input L s Water Flow GPM Pump Delivery Lift m kW Power Input Expansion Vessel Volume Outline WxDxH Packaged WxDxH mm Dimension mm x Net Gross Weights Z O m HLR__SM NaA M 35 31 105772 8 8 36 122832 10 3 11 9 12 5 Auto air evacuation valve Auto R410A 6 5X2 scroll 2 Shell and tube 1 1 2 Aluminum fin copper tube Fin sl 0 6 1750x800x1760 1910x960x1970 600 610 PRODUCT 45 42 143303 11 9 49 167187 13 9 18 3 17 5 380 415V 3Ph 50Hz Safety valve Auto water replenishing valve air evacuation valve 7 3 2 2 Shell heat exchanger eeve Heat exchanger 0 8 2 2 29 27 1 5 8 17508001760 1910x960x1970 755 765 11 Cooling capacity is based on the following conditions leaving chilled water temp 7 outdoor air temp 35 21 Heating capacity is based on the following conditions leaving warmed water temp 45 outdoor air temp Water flow range for operation must be from 70 to 120 of the rated water 41 The maximum allowable pressure for water pipe is 0 9 MODULAR MINI CHILLER PRODUCT
38. terval to restart the e heater When the temperature detected by inflow water temperature sensor is ST1 the second group of auxiliary e heaters will work When the inflow water temperature is 2T2 the second group of auxiliary e heaters will stop When the inflow water temperature is between the above two temperature the second group of auxiliary e heaters remain the original state When the temperature detected by inflow water temperature sensor is XT1 trO the first group of auxiliary e heaters will work When the inflow water temperature is 2T2 tr1 the first group of auxiliary e heaters will stop When the inflow water temperature is between the above two temperature the first group of auxiliary e heaters remain the original state After startup of the unit the auxiliary e heater will work after all the compressor runs for a certain period and all the above condition 15 reached 2 2 4 Stop of the Unit subject to the stop of the compressor Stop the unit manually or via timer the compressor the auxiliary e heater and the fan stops in sequence After certain setting time the four way valve will be de energized and the water pump will stop Stop the unit upon reaching the temperature spots the compressor stops and then the fan stops The four way valve will remain the original state and the water pump will not stop Disorderly closedown the compressor stops and then the fan stops unless the fan is wrong After the corresponding co
39. whether to save the modified values comes up again on the screen and if you need to save them you can select OK and then press Confirm to save modifications and go back to the Main menu Please note that only in the above exit way can modifications be saved 4 Version Information Used for checking version number of software and hardware of the wired controller On the Main menu on the screen select Version and press Confirm to go to the page as shown in the following drawing Ver XXX Data XXXX XX Press Exit to quit the page and go back to the previous menu 3 4 2 3 Reset for erasing error On any interface press Reset the following page appears Clear Error Remove Dis Sensor 24 MODULAR MINI CHILLER CONTROL Press Exit to go back to the previous interface and press Confirm to select function as shown in the following 1 Erasing Error Error 15 clear Press Confirm to confirm it and go back to the previous page 2 Relieve Discharge Temp Sensor locking Press Confirm to go to Code Entry page and enter correct password to go to the following page Temp Sensor Error Is Clear OK Press Confirm to confirm it and go back to previous page 25 MODULAR MINI CHILLER CONTROL 3 5 Controller Menu Structure
40. wing Run Mode Cool Heat Defrost Startup Manual Timer Auxiliary Hat CN Auto Anti f reeze GH V Page 1 15 MODULAR MINI CHILLER CONTROL Timer Setup A Clock Setup Sound OFF Backl i ght OFF V Page 2 ECO Model ON OFF A Quiet Model OFF Memory Start OFF Page 3 Press the Up or Down selection button to choose a needed function and press the Confirm to go to or confirm the selection The subsequent ON or OFF which means the function is selected or not a Run Mode Set Select the Run Mode and press the Confirm button and the display on the screen is as follows Cool Heat Defrost Press the Confirm button to acknowledge a selected object press the Up or Down selection button to change a selected object and press the Exit button to cancel the model set Different models have different display modes If you is setting a mode in the startup state the following prompt will appear Set mode only when unit is off OK Press the Confirm button for acknowledgement b Startup mode set Select the Startup press the Confirm button The start stop mode can be converted between the manual mode and the timing mode c Auxiliary Heater Function Set Select Auxiliary Heat and press the Confirm button the subsequent ON or which means the function is selected or not 16 MODULAR MINI CHILLER CONTROL
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