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Water-Cooled Screw Chiller Service Manual

1. 1211 WATER COOLED SCREW CHILLER LSBLG960H M LSBLG1160H M LSBLG680H Nb M LSBLG1280H Nb M INSTALLATION EZ 5 2 D
2. 16 WATER COOLED SCREW CHILLER INSTALLATION Fig2 2 Diagram of istallation base Sheet 2 2 Demsion of installation base Unit mm Name A B D M K LSBLGI90H M 3160 1350 1150 2630 740 LSBLG290H M 3160 1350 1150 2630 740 LSBLG325H M 3160 1350 1150 2630 740 LSBLG430H M 3160 1600 1400 2630 920 LSBLG480H M 3160 1600 1400 2630 920 LSBLGS550H M 3160 1600 1400 2630 920 LSBLG650H M 3160 1720 1520 2630 1100 LSBLG780H M 3160 1720 1520 2630 1100 LSBLG850H M 3160 1720 1520 2630 1100 LSBLG960H M 3400 1900 1700 2830 1210 LSBLGI160H M 3400 1900 1700 2830 1210 LSBLG1360H 3900 2100 1900 3330 1420 LSBLG1560H M 3900 2100 1900 3330 1420 LSBLG1700H M 3900 2100 1900 3330 1420 LSBLG180H Nb M 3160 1350 1150 2630 740 LSBLG210H Nb M 3160 1350 1150 2630 740 LSBLG240H Nb M 3160 1350 1150 2630 740 LSBLG300H Nb M 3160 1600 1400 2630 920 LSBLG340H Nb M 3160 1600 1400 2630 920 LSBLG380H Nb M 3160 1600 1400 2630 920 LSBLG450H Nb M 3160 1720 1520 2630 1100 LSBLGSOOH Nb M 3160 1720 1520 2630 1100 LSBLG580H Nb M 3160 1720 1520 2630 1100 LSBLG640H Nb M 3160 1720 1520 2630 1100 LSBLG680H Nb M 3400 1900 1700 2830 1210 LSBLG760H Nb M 3400 1900 1700 2830 1210 LSBLG880H Nb M 3900 2000 1900 3330 1420 LSBLG1000H Nb M 3900 2000 1900 3330 1420 LSBLGI160H Nb M 3900 2000 1900 3330 1420 LSBLG1280H Nb M 3900 2000 1900 3330 1420
3. 8 m T y m 3 1 GREE COMMERCIAL AIR CONDITIONERS WATER COOLED SCREW CHILLER MAINTENANCE WATER COOLED SCREW CHILLER UNITS MAINTENANCE MATINTENANCE 1 ERROR CODE LIST error Source of error m name description display signal When the high temperature of system exceeds the setting value the high pressure protection occurs and the corresponding high high malfunction LED lights while the compressor stops high pressure _ 5 m pressure of pressure immediately The malfunction information is shown on the switch compressor protection wired controller The unit can be started up only after the malfunction is removed manually When the low temperature of system is lower than the setting value the low pressure protection occurs and the corresponding low pressure malfunction LED lights while the compressor stops low pressure low pressure _ V no of immediately The malfunction information is shown on the protection switch compressor wired controller The unit can be started up only after the malfunction is removed manually Upon overcurrent of compressor the overload protection will occur and the corresponding malfunction LED lights while the over
4. ball valve Open the vacuumizing AIR E kb ball valve after finish Ne S 4 a ud Tp p vacuumizing the pipe um is Test the welding spot N H leak test Ze for leakage If it is N E a welding spot leaked repair it 21 WATER COOLED SCREW CHILLER MATINTENANCE 4 EXPLODED VIEWS amp PARTS LIST LSBLG325H M LSBLG550H M LSBLG210H Nb M LSBLG450H Nb M LSBLG290H M LSBLG430H M LSBLG480H M LSBLG650H M LSBLG780H M LSBLG850H M LSBLG240H Nb M LSBLG300H Nb M LSBLG340H Nb M LSBLG500H Nb M LSBLG580H Nb M LSBLG640H Nb M LSBLG180H Nb M LSBLG380H Nb M LSBLGI90H M R at EL TA 5 S X N N N Da x A V N N O d 22 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG190H M Name of part Part code Quantity Electric Cabinet Assy 01398056 1 Relief Valve 3 8 30bar 0718000801 1 Relief Valve 3 8 07388802 1 Compressor and fittings RC 2 200B F 00201322 1 Oil Separator SSD1600H 07428007 1 Flooded evaporator MZ190D 01058815 1 Shell and Tube Condenser WN230DHorizontal 01158812 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR10 43008155 2 Magnet Coil
5. Replace pressure or temperature sensor 18 WATER COOLED SCREW CHILLER MATINTENANCE 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS disassembly of electric expansion valve cause accident and injury Remarks before disassemble the electric expansion valve ensure that the inside pressure is released Otherwise it may step diagram instruction discharge Freon freon inlet _ ball valve handle A After stopping the unit close the ball valve and open the Freon inlet on the ball valve to release the Freon in the pipe replace electric expansion valve Solder off the expansion valve and replace a new one Vacuumize the expansion valve via the Freon inlet d vacuumizing freon inlet and then open the ball ball valve handle me _ Test the soldering point leak test 2 II Ww for leakage If it is leaked repair it 19 WATER COOLED SCREW CHILLER MATINTENANCE disassembly of dry filter and injury Remarks before disassemble the dry filter ensure that the inside pressure is released Otherwise it may cause accident step diagram instruction discharge Freon freon inlet ball valve handle After stopping the unit close the ball valve and open the Freon inlet on the ball valve to release the Freon in the pipe replace the filter c
6. 1 5 Rigging Instruction ATTENTION TO RIGGERS Center of gravity is not unit center line Ensure center of gravity aligns with the main lifting point before lifting Use spreader bar when rigging to prevent the slings during the unit CAUTION panels should be in place when rigging Care must be taken to avoid damage to the pipeline during handing 17 WATER COOLED SCREW CHILLER INSTALLATION Rigging schematic plan according to the indication on unit 1 6 Installation Clearance Data Installation Clearance schematic plan Name A B C D H LSBLGI90H M 600 600 2600 1000 500 LSBLG290H M 600 600 2600 1000 500 LSBLG325H M 600 600 2600 1000 500 LSBLG430H M 600 600 2600 1000 500 LSBLG480H M 600 600 2600 1000 500 LSBLG550H M 600 600 2600 1000 500 18 WATER COOLED SCREW CHILLER INSTALLATION LSBLG650H M 600 600 2600 1000 500 LSBLG780H M 600 600 2600 1000 500 LSBLG850H M 600 600 2600 1000 500 LSBLG960H M 600 600 2600 1000 500 LSBLG1160H M 600 600 2600 1000 500 LSBLG1360H M 600 600 3000 1000 500 LSBLG1560H M 600 600 3000 1000 500 LSBLG1700H M 600 600 3000 1000 500 LSBLG180H Nb M 600 600 2600 1000 500 LSBLG210H Nb M 600 600 2600 1000 500 LSBLG240H Nb M 600 600 2600 1000 500 LSBLG300H Nb M 600 600 2600 1000 500 LSBLG340H Nb M 600 600 2600 1000 500 LSBLG380H
7. o 6883 ONT N 02 AS NOD 18 p 16 4 5 2 T T 310135 k 2L o i o 5 ET H a E Di EJ HL2 User Connection WATER COOLED SCREW CHILLER LSBLG1360H M LSBLG1700H M INSTALLATION
8. 9 2 N p L NC 7 18109 ANS 9 dNNd RTI RTE RT RT2 RTS RTA RTS RTS RTI cator Fault indi Running indic ier 10 User Connection L LL e 21 1 Cell S vu E hae 5 48 EAN CS 01 ond EAN IS BAS su
9. 1 3 1 Installation 1 Firstof all check whether the base conforms to the footing size of the unit in the general diagram The base should be smooth and level 2 Putthe steel plate of the chassis to the specific place 3 Put the base steel in the prescriptive position 4 There should be no space between the base steel and the foot plate of the refrigerant unit Inser the adjusting shim between the base steel and the concrete base Adjust the base steel to be horizontal the altitude difference should be within 0 5mm every meter 5 Lift the refrigerant unit and put damper rubber blanket on the base steel and then put the unit on the damper rubber blanket 6 After installation ensure that the horizontal slope should be within 1000 If it is beyond the range adjust the unit Put a pad the pad is provided by the installer between the footing and the shock pad and then check the horizontal slope until it is passed 14 WATER COOLED SCREW CHILLER INSTALLATION 1 3 2 Piping 1 After leveling the unit connect the chilled water pipe and cooling water pipe Piping should have flexible parts and independently supportive capability to avoid any distortion or vibration The pipe should be supported and correctly joined Shock pad can be added to the pipe supporter so as for reduce the vibration 2 There are marks near the inlet and outlet for reference when connecting the pipe It is necessary to connect the pipe according to t
10. 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity 1 1 2 RECH gt 51 WATER COOLED SCREW CHILLER LSBLG1160H Nb M O S olo JT a 2 gt gt gt CA gt 2 zje s z s z x e eje e s z s a zja s s gt gt gt gt gt E Name of part Shell and Tube Condenser WN1390SNb Flooded evaporator MZ1160SNb Compressor and fittings CSW9582 210Y 40D Electric Cabinet Assy Oil Separator Relief Valve 3 8 Relief Valve 3 8 Pipe Filter Valve 2 022 2X1 5 Electromagnetic Valve EVR10 Magnet Coil injector Assy Electromagnetic Valve EVR6 032F1236 Magnet Coil Liquid Valve Sub Assy Bidirection Strainer 16 orifice plate Electromagnetic Valve EVR10 Valve 1 5 8 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Sight glasses SGN16s ODFXODF Thermal Overload Relay LR9 D5369 AC Contactor LC1 D170006M7C Main Board WZ2G1A Transformer 66X28B Fuse Switch XLP2 Driver EXD U00 Phase Reverse Protector EWS Single phase Air Switch 3 40A C45N 6A QF1 C65N Part code 0115880302 0105880402 00208037 01398052 0742800301 07388801 0718000804 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802604 43008155 07189057 07138119 07218158 07218205 224584
11. GREE Water Cooled Screw Chiller Service Manual TI R2 R134a GREE ELECTRIC APPLIANCES INC OF ZHUHAI CONTENTS PRODUCT INTRODUCTION 2 EMODELSEIST ieren gedeelt 2 2NOMENGEAEURE ui 3 u at doc Wh dad ege d a Od O da uda 4 SA Brief Introduction e k l ROO SOROR EROR CORE EROR UNE NOR UNO UNS 4 3 2 Standard Specifications sie ec t eoa e e ene cove O ORT EUREN EET ERE 4 RE De 5 3 4 Standard Control amp Safety DEVICES ene IRRE BI En ss 6 4 PRODUCT DATA UR E ER RERUM RD ERG ERO ea 7 4 1 Product Data at Rated Condition u AN nennen nennen terere nnne Ya iss 7 4 2 Operating Condition of Nominal sessi eerte enne nnnm enne 11 4 3ANTIEFREEZE DESEE HE RUD RO RON eO E Heo P Et 12 5 PIPING DIAGRAM wo e e EE 1 UNIS CONTRO COW CO 1 OPERATION ELOWCGHART 4 202222 He de td n o ele tette 1 ZMAINTOGIE n ene ERS ADONIS ed ec 2 2 1 Startup Stop of the Unit n mama pU SR EE oe 2 2 2 Startup and Stop Control of Cooling Water Pumpen 2 2 3 Startup and Stop Control of Condensate pump essere eere 2 2 4 Startup and Stop of the Cooling Tower Fan sees eere eene nre 2 2 5 Capacity Regulation of Compressor ta iwa 4 2 6 ProtectiOn of Compressor ice i
12. 07189057 07138119 07218158 07218205 22458401 44020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity WATER COOLED SCREW CHILLER LSBLG1000H Nb M Se olo JT a t2 gt gt gt gt 2 5 eE Name of part Shell and Tube Condenser WN1200SNb Flooded evaporator MZ1000SNb Compressor and fittings CSW9572 180Y 40D Electric Cabinet Assy Oil Separator Relief Valve 3 8 Relief Valve 3 8 Pipe Filter Valve 2 22 2 1 5 Electromagnetic Valve EVR10 Magnet Coil injector Assy Electromagnetic Valve EVR6 032F1236 Magnet Coil Liquid Valve Sub Assy Bidirection Strainer 16 orifice plate Electromagnetic Valve EVR10 Valve 1 5 8 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Sight glasses SGN16s ODFXODF Thermal Overload Relay LR9 D5369 AC Contactor LC1 D170006M7C Main Board WZ2G1A Transformer 66X28B Fuse Switch XLP2 Driver EXD U00 Phase Reverse Protector EWS Single phase Air Switch 3 40A C45N 6A QF1 C65N Part code 0115880301 0105880401 00208036 01398050 0742800301 07388801 0718000804 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802602 43008155 07189057 07138119 07218158 07218205 22458401 44020375 44010237
13. the condensate pump will stop after the setting time T If the compressor stops due to malfunction as for the unit with dual system both compressors stop the condensate pump will stop after the setting time T 2 4 Startup and Stop of the Cooling Tower Fan 2 4 1 Switch off Heat Reclaim Function After the unit is started up if the condition for the cooling tower fan to start is reached the cooling tower fan will run after one third of the setting time T After normal stop of the unit as for the unit with dual system both compressors stop normally the cooling tower fan will stop at the same time When the unit starts or stands by it checks the running state of the condensate pump If the condensate pump is started up When intake temperature of cooling water lt T minimum temperature of cooling water the cooling tower fan will stop When intake temperature of cooling water gt T minimum temperature of cooling water 5 0 the cooling water fan will start When T minimum temperature of cooling water lt intake temperature of cooling water T minimum temperature of cooling water 5 0 the cooling tower fan will remain the same state WATER COOLED SCREW CHILLER CONTROL If the condensate pump stops The cooling tower fan stops Note There is no cooling tower fan in water heat pump unit 2 4 2 Switch on Heat Reclaim Function It can be set based on the manufacturer s parameter high or low cooling priority After
14. 576 616 695 792 906 1052 1153 Loss of Pressure kPa 68 68 68 68 78 78 80 80 Condenser Heat Exchanger Shell and Tube Condenser Max Pressure MPa 2 Water In Out Pipe DN15 DN15 DN20 DN20 DN20 DN20 DN20 DN20 mm Diameter 0 0 0 0 0 0 0 0 Height mm 2130 2130 2030 2030 2230 2230 2230 2230 Dimension Width mm 3160 3160 3400 3400 3900 3900 3900 3900 Depth mm 1520 1520 1700 1700 1900 1900 1900 1900 Shipping Weights kg 3850 4600 5100 5100 6200 6500 6500 7000 Operation Weights kg 4043 4830 5355 5355 6510 6825 6825 7350 Notes Rated conditions Cooling Indoor air temperature 0 DB L WB outdoor air temperature DBHeating Indoor air temperature DB outdoor air temperature 0 DB WB 1 mm 0 0394 inch Unit application data 10 PRODUCT WATER COOLED SCREW CHILLER 4 2 Operating Condition of Nominal 4 2 1 Cooling Nominal Operate Condition Chilled Water Cooling Water Inter Water Temp Outlet Water Temp Inter Water Temp Outlet Water Temp 0 0 0 0 0 0 0 0 12 7 30 35 Operating Range Chilled Water Cooling Water Outlet Water Temp Temp Difference Inter Water Temp Temp Difference 0 0 Between Inter amp Outlet 0 0 Between Inter amp Outlet 0 0 0 0 5 15 2 5 8 22 37 3 5 8 11 WATER COOLED SCREW CHILLER 4 3 Antifreeze PRODUCT A glycol solution is required when ambient temperature is below 0 and there is water in evaporator or condenser for avoid
15. DREES nn r Evsa DREES EE _ m Me Boat wz Dreem O 22 n pemos CS rne Poe 26 ema veo Rey RDS Part code 01398053 07388801 0718000804 00208035 07428005 01058806 01158805 07418001 07108627 43008155 43008152 07210044 0722812201 22458401 02228103 07180007 07138119 07218158 07218205 30222061 43110028 45020203 32210012 46020054 44010237 44020375 MATINTENANCE Quantity 1 1 1 38 WATER COOLED SCREW CHILLER oo N N Z LSBLG500H Nb M Name of part Electric Cabinet Assy Relief Valve 3 8 Relief Valve 3 8 Compressor and fittings CSW9572 180Y 40D Oil Separator Flooded evaporator MZ500DNb Shell and Tube Condenser WN600DNb Filter Liquid Valve Sub Assy Electromagnetic Valve EVR10 Magnet Coil Bidirection Strainer 16 injector Assy Sight glasses SGN16s ODFXODF orifice plate Valve HY V G09 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Main Boardl WZ2G1A Transformer 66X28B Single phase Air Switch 3 40A C45N 6A QF1 C65N Driver EXD U00 Phase Reverse Protector EWS AC Contactor LC1 D170006M7C Thermal Overload Relay LR9 D5369 Part code 01398053 07388801 0718000804 00208036 07428005 0105880601 0115880501 07418001 07108627 43008155 43008152 07210044 0722812201 22458401 0222810302 0718
16. Is the sensor normal no yes Replace the sensor s intake temperature of cooling water too yes n Replace the high s cooling tower normal gt 5 differential temperature of cooling wate too high Are all cooling water valve open Tum up the water valve yes no es lis there much scaling in the condenser Clean the heat transfer pipe of condenser yes no no Are the valves of the system fluent Repair the valves of the system yes yes Remove the blocker and replace the blocked Is the system dirty or blocked parts Is there air or incoagulable gas in the system Empty the system or reclaim the refrigerant vacuunmize and recharge it 13 WATER COOLED SCREW CHILLER MATINTENANCE 2 2 Low Pressure Protection LP PROTECTION Is sensor normal Replace the sensor Is set water temperature Reset the water Is water temperature normalll correct temperature Is water flow normal Adjust the water flow Clean heat transfer yes of evaporator s there much scaling in the evaporator Are the valves of the system fluent Repair valves of the system Remove the blocker or replace the Is th i locked s the system dirty or blocked Que E Leak test
17. Nb M 600 600 2600 1000 500 LSBLG450H Nb M 600 600 2600 1000 500 LSBLGS500H Nb M 600 600 2600 1000 500 LSBLG580H Nb M 600 600 2600 1000 500 LSBLG640H Nb M 600 600 2600 1000 500 LSBLG680H Nb M 600 600 3000 1000 500 LSBLG760H Nb M 600 600 3000 1000 500 LSBLG880H Nb M 600 600 3000 1000 500 LSBLG1000H Nb M 600 600 3500 1000 500 LSBLG1160H Nb M 600 600 3500 1000 500 LSBLG1280H Nb M 600 600 3500 1000 500 2 Typical Piping soft check stop Y type filter temperature pressure contact valve valve meter gauge Il N a es discharging water safety balanced valve switch valve valve 20 19 WATER COOLED SCREW CHILLER INSTALLATION lt lt L_ Cooling tower p V V ul 2 N N Ke air condition load T l By pass nA gt Condenser 20 WATER COOLED SCREW CHILLER INSTALLATION 3 ELECTRIC WIRING WORK 3 1 Wiring Principle 1 General Provision the cables equipments wire connector must meet the related regulation and engineering requirement AII the wiring must be executed by electrician with certificate The power must be cut off before wire connection Installers should be responsible for any damage caused by incorrect
18. Sat BE CUNTRUL BUX LOCATIONS AND FIELD WIRIN LSBLGIS0H M L S BLGSo0H M L S BLGISOH No M7L S BLG640H Nbo M tem N N FIELD CONTROL WIRING ENTRANCE MAIN POWER ENTRANCE TYPICAL CUNTRUL BUX LOCATIONS AND FIELD WIRIN LSBLG960H M LSBLGLIG0H MjLSBLGO80H No M LSBLGI280H Nb M WATER COOLED SCREW CHILLER MAIN POWER D TRANCE 1 MA N POWER ENTRANCE 2 L K OO INSTALLATION rq OO T T EN pe LD CONTROL WIRING ENT ANCE U TYPICAL CENTR L BUX LUCATI NS AND FIELD V LSBLG I360H M LSBLG 1700 MO m L3 I I 1 L3 I E L1 Le FIELD PRUVIDED L UNIT POWER SUPPLY I I I LEDGEND m ELD POWER
19. at the upper side The right side shows current page and representative time slice for example the first page represents the temperature and pressure within current Ihr the second one represents the temperature and pressure before Ihr the third one represents the temperature and pressure before 2hr analogizing like this 3 Touch Error Records into the interface for record of error info of recent 1200 times which is divided into 60 pages Each page contains 20 pieces of info which is arranged by No Date Time Recovery Time and Error Type from left to right The latest error info is always in the front 4 This interface records the malfunction info of recent 1200 times There are 60 pages in total and 20 pieces of information in each page which are ordered by Error No Date Time Recovery Time and Error Type from left to right The lasted error info is always on the top 5 Parameters Parameters are mainly used by after sales persons with password and not open to the users Pay attention to that casual modification of them will cause bad result 6 Touch System Info into interface for control of basic parameters and use conditions of system update time of software accumulated running time of compressor and setting of control system in Region A and Region B and long distance control 12 GREE COMMERCIAL AIR CONDITIONERS WATER COOLED SCREW CHILLER INSTALLATION 13 WATER COOLED SCREW CHILLER INSTALLATION UNITS INSTALLATION 1
20. for at least 10 min before restart 2 2 Startup and Stop Control of Cooling Water Pump When the unit is started up from the stop state the cooling water pump will run automatically and the compressor will run later after the setting time T when the unit is running including standby the cooling water pump keeps running After normal stop of the unit as for the unit with dual system both compressors stop normally the cooling water pump will stop after the setting time T If the compressor stops due to malfunction as for the unit with dual system both compressors stop the cooling water pump will stop after the setting time T 2 3 Startup and Stop Control of Condensate pump After the unit is started up if the condition for the compressor to start is reached the condensate pump will run after one third of the setting time T and the compressor will run after the setting time T if the condition for the compressor to start is not reached condensate pump will not run During running of the unit the condensate pump will keep running During standby of the unit as for the unit with dual system both compressors stand by the condensate pump will stop after the setting time When the compressor is started up from standby the condensate pump will run after one third of the setting time T and the compressor will run after the setting time T After normal stop of the unit as for the unit with dual system both compressors stop normally
21. into the interface of review of running parameters of the 3 parameter system 4 System info System Info can be touched into the interface of review of basic info of the system Maintenance can be touched into the maintenance interface in which the events requested 5 maintenance to be paid attention to during usage and maintenance of touch screen can be viewed 6 home Back to the Home can be touched into Home interface 7 T Indicator T green can be touched to light Taskbar consists of Indicator T and a blank column A popped window with Minimize I ai button can be minimized into the blank column of taskbar which can contain 6 minimized askbar icons at most The minimized window can be recovered in the screen after touching the minimized icon in taskbar 9 Taskbar Taskbar Button can be touched to hide or display taskbar 10 Start Start can be touched to hide or display Start menu CONTROL 10 WATER COOLED SCREW CHILLER 3 2 Controller Menu System clock setting Control mode Starup stop mode User Setting TOUCH SCREEN Controller Menu Star menu Timing time Remote control Autmotive antifreeze Set temp Anti freezing temp for chilled water Lowest temp for cooling water Superheat temp for cooling water Temp difference of chilled in On Off Temp Difference Between Modles Expansion va
22. repair leak or vauumize and Lack of refrigerant recharge it 14 WATER COOLED SCREW CHILLER 2 3 Overload Protection of Compressor Overload protection of compressor s the current of compressor normal Adjust overload protector the power supply and voltage mS normal yes s the PE AW too s the discharging pressure 10 high Refer to high pressure protection 2 Is the system dirty or blocked blocked parts Clean the system or replace the Electromotor malfunction or short circuit 1 Check electromotor and resistance between terminals MATINTENANCE WATER COOLED SCREW CHILLER 2 4 Internal Protection Internal protection of compressor S the voltage of power supply iS normal Adjust voltage yes Refer to high discharge temperature Is discharge temperature too high yes Water temperature is too high Adjust water flow yes nternal temperature controller 18 wrong Replace the internal temperature controller Lack of refrigerant Leak test repair leak vacuumize and recharge it 2 5 Differential Pressure Protection Differential pressure protection Is sensor normal Replace sensor Is cooling water temperature beyond the Wil
23. water system should adopt soft water During running of the unit it is necessary to sample the water for analysis and the water quality should conform to the requirement of sheet 2 3 Otherwise the water must be treated Currently the commonly used water treating device is sand eliminator and water softening equipment If the water quality still can not reach the requirements add a heat exchanger between the water on side of heat source and the water cooled screw chiller Actually even if the above actions are taken there will be deposit such as scale and sand in the shell and tube exchanger which will decrease the water flow and affect the rate of heat exchange and even freeze the evaporator Therefore it is necessary to inspect and maintain the unit periodically Sheet 2 3 Quality of cooling water standard trend item value erosion scaling 6 5 8 0 0 0 PH value 2511 uS cm 800 0 0 specific conductance 250 basic item chloride ion CI 200 0 Mg Cl sulfate radical ion SO 2 200 0 Mg 50 2 Mg CaCO3 L lt 100 0 acid depletion PH4 8 full hardnessl Mg CaCO3 L lt 200 0 reference item Fe ferrum mg Fe L lt 1 0 0 0 sulphur ion S2 mg S2 L none 0 15 WATER COOLED SCREW CHILLER INSTALLATION ammon ion NH mg NH L lt 1 0 0 monox 5102 Ms SiO2 L lt 50 0 1 4 Mounting Location The screw compressor has relatively less
24. 0 43008155 2 Magnet Coil 43008152 2 Bidirection Strainer 16 07210044 2 injector Assy 0722812201 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice plate 0222810307 1 Valve 2 35 1 5 071800042 2 Expansion Valve EX6 121 07139065 1 Dry Filter A TDS 9611 STAS 9611 STAS 9611T 07218210 1 Filtering Core D48 07218205 2 Main Boardl WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 Contactor LC1 D6511M7C 44010280 1 Thermal Overload Relay LRD3359C 44020383 1 33 WATER COOLED SCREW CHILLER gt 14 ele u NK gt gt gt ete oO N N 2 LSBLG240H Nb M Name of part Electric Cabinet Assy Relief Valve 3 8 Relief Valve 3 8 Compressor and fittings CSW7592 90Y 40P Oil Separator Flooded evaporator MZ240DNb Shell and Tube Condenser WN290DNb Filter Liquid Valve Sub Assy Electromagnetic Valve EVR10 Magnet Coil Bidirection Strainer 916 injector Assy Sight glasses SGN16s ODFXODF orifice plate Valve 2 935X1 5 Expansion Valve EX6 121 Dry Filter A TDS 9611 STAS 9611 STAS 9611T Filtering Core D48 Main Board WZ2G1A Transformer 66X28B Single phase Air Switch 3 40A C45N 6A QF1 C65N Driver EXD U00 Phase Reverse Protector EWS AC Contactor LC1 D6511M7C Thermal Overload Relay LRD3359C Part code 01398058 07388801 0718000804 00
25. 00 1520 1300 1800 1900 2450 2800 2900 3100 1350 1890 1995 2573 2940 3045 3255 WATER COOLED SCREW CHILLER Models Nominal Cooling kW Capacity RT Power Supply Running Control Safety Apparatus Compressor Type Refrigerant Type I s GPM Water Flow Heat Exchanger Max Pressure Water In Out Pipe Loss of Pressure kPa Cooler Diameter Vs Water Flow GPM Loss of Pressure kPa Heat Exchanger Max Pressure Water In Out Pipe Conde nser Diameter Dimen sion m Operation Weights kg mm PRODUCT LSBLG 780 850 960 1160 1360 1560 1700 780 850 964 1160 1704 222 242 274 330 386 443 484 142 156 182 218 248 288 312 380 415V 3PH 50Hz the colorful touch LCD liquid crystal display High low pressure protection discharge temp protection anti freeze water flow protection low water flow protection phase sequence protection compressor overload protection low oil location protection Safety valve Crankcase heaters Semi Hermitic Screw Compressor R22 37 41 46 55 147 224 246 326 42 45 53 57 Flooded Shell and Tube Evaporator 1 4 150 DN150 DN200 DN200 DN200 DN200 DN200 708 774 876 1047 Shell and Tube Condenser 2 DN200 DN200 DN200 DN200 DN250 DN250 DN250 2130 2130 2030 2030 2230 3160 3160 3400 3400 3900 3900 1520 1520 1700 1700 1900 1900 3850 4600 5100 5450 6
26. 0007 07138119 07218158 07218205 30222061 43110028 45020203 32210012 46020054 44010237 44020375 MATINTENANCE Quantity 1 1 1 39 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG580H Nb M 40 WATER COOLED SCREW CHILLER jan t2 t2 o t gt gt gt N 2 LSBLG640H Nb M Name of part Electric Cabinet Assy Relief Valve 3 8 Relief Valve 3 8 Compressor and fittings CSW9592 240Y 40D Oil Separator Flooded evaporator MZ640DNb Shell and Tube Condenser WN780DNb Filter Liquid Valve Sub Assy Electromagnetic Valve EVR10 Magnet Coil Bidirection Strainer 916 injector Assy Sight glasses SGN16s ODFXODF orifice plate Valve HY V G09 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Main Boardl WZ2G1A Transformer 66X28B Single phase Air Switch 3 40A C45N 6A QF1 C65N Driver EXD U00 Phase Reverse Protector EWS AC Contactor LC1 D170006M7C Thermal Overload Relay LR9 D5369 Part code 01398081 07388801 0718000804 00208038 07428005 0105880603 0115880503 07418001 07108627 43008155 43008152 07210044 0722812201 22458401 0222810308 07180007 07138119 07218158 07218205 30222061 43110028 45020203 32210012 46020054 44010237 44020375 MATINTENANCE Quantity 1 1 1 41 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG960H M LSBLG1160H M LSBLG1360H M LSBLG1560H M LSBLG1700H M LSBLG
27. 0028 45020203 32210012 46020054 44010249 44020381 MATINTENANCE Quantity WATER COOLED SCREW CHILLER MATINTENANCE LSBLG180H Nb M Name of part Part code Electric Cabinet Assy 01398058 Relief Valve 3 8 07388801 Relief Valve 3 8 0718000804 Compressor and fittings CSW7572 70Y 40P 00208029 Oil Separator 07428001 Flooded evaporator MZ180DNb 01058808 Shell and Tube Condenser WN220DNb 01158807 Filter 07418001 Liquid Valve Sub Assy 07108627 Electromagnetic Valve EVR10 43008155 Magnet Coil 43008152 Bidirection Strainer 916 07210044 injector Assy 0722812201 Sight glasses SGN16s ODFXODF 22458401 orifice plate 0222810305 Valve 2 935X1 5 071800042 Expansion Valve EX6 121 07139065 Dry Filter A TDS 9611 STAS 9611 STAS 9611T 07218210 Filtering Core D48 07218205 Main Boardl WZ2G1A 30222061 Transformer 66X28B 43110028 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 Driver EXD U00 32210012 Phase Reverse Protector EWS 46020054 AC Contactor LCI D6511M7C 44010280 Thermal Overload Relay LRD3359C 44020383 32 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG210H Nb M Name of part Part code Quantity Electric Cabinet Assy 01398058 1 Relief Valve 3 8 07388801 1 Relief Valve 3 8 0718000804 1 Compressor and fittings CSW7582 80Y 40P 00208030 1 Oil Separator 07428001 1 Flooded evaporator MZ210DNb 0105880801 1 Shell and Tube Condenser WN250DNb 0115880701 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR1
28. 01 44020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity 1 1 2 RECH gt 52 WATER COOLED SCREW CHILLER LSBLG1280H Nb M Se olo JT a t2 gt gt gt gt 2 5 eE Name of part Shell and Tube Condenser WN1530SNb Flooded evaporator MZ1280SNb Compressor and fittings CSW9592 240Y 40D Electric Cabinet Assy Oil Separator Relief Valve 3 8 Relief Valve 3 8 Pipe Filter Valve 2 22 2 1 5 Electromagnetic Valve EVR10 Magnet Coil injector Assy Electromagnetic Valve EVR6 032F1236 Magnet Coil Liquid Valve Sub Assy Bidirection Strainer 916 orifice plate Electromagnetic Valve EVR10 Valve 1 5 8 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Sight glasses SGN16s ODFXODF Thermal Overload Relay LR9 D5369 AC Contactor LC1 D170006M7C Main Board WZ2G1A Transformer 66X28B Fuse Switch XLP2 Driver EXD U00 Phase Reverse Protector EWS Single phase Air Switch 3 40A C45N 6A QF1 C65N Part code 0115880303 0105880403 00208038 01398052 0742800301 07388801 0718000804 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802606 43008155 07189057 07138119 07218158 07218205 22458401 44
29. 020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity 1 1 2 RECH gt 53
30. 08152 07228122 43000078 43008152 07108627 07210044 02228026 43008155 07189057 07138119 07218158 07218205 22458401 44020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity LA WATER COOLED SCREW CHILLER LSBLG1160H Nb M REGER o 10 vu z as SSS 13 vare a mesa rena mese eu wem 20 Espania s Dy Fier Zu m gt Thema veo Rey RDS 7 manae O gt peon 5 Ps Revese Prog REESEN Part code 0115881501 0105881801 00201303 01398045 07428010 0718000801 07388802 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802601 43008155 07189057 07138119 07218158 07218205 22458401 44020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity 1 1 2 o gt 44 WATER COOLED SCREW CHILLER LSBLG1360H Nb M 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Quantity MATINTENANCE 45 WATER COOLED SCREW CHILLER LSBLG1560H Nb M 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Quantity MATINTENANCE 46 WATER COOLED SCREW CHILLER LSBLG1700
31. 1487 1487 1680 1680 1720 2130 2130 Dimension Width mm 3160 3160 3160 3160 3160 3160 3160 3160 Depth mm 1150 1150 1150 1400 1400 1400 1520 1520 Shipping Weights kg 1800 1900 1900 2800 2900 3100 3850 4600 Operation Weights kg 1890 1995 1995 2940 3045 3255 4043 4830 WATER COOLED SCREW CHILLER PRODUCT LSBLG H Nb M Models 580 640 680 760 880 1000 1160 1280 kW 582 637 680 767 880 1006 1155 1275 Nominal Cooling Capacity RT 165 181 193 218 250 286 328 362 Power Consumption kW 112 122 130 148 168 190 224 244 Power Supply 380V 3N 50Hz Running Control the colorful touch LCD liquid crystal display High low pressure protection discharge temp protection anti freeze water flow protection low water flow protection phase sequence protection Safety Apparatus compressor overload protection low oil location protection Safety valve Crankcase heaters Compressor Type Semi Hermitic Screw Compressor Refrigerant Type R134a Vs 28 31 33 37 42 48 56 61 Water Flow GPM 440 484 515 581 669 761 880 968 Loss of Pressure kPa 68 74 76 76 76 77 78 78 Cooler Heat Exchanger Semi Hermitic Screw Compressor Max Pressure MPa 1 4 Water In Out Pipe DN15 DN15 DN20 DN20 DN20 DN20 DN20 DN20 mm Diameter 0 0 0 0 0 0 0 0 Vs 33 36 39 44 50 57 66 73 Water Flow GPM 524
32. 18000801 1 Relief Valve 3 8 07388802 1 Compressor and fittings 2 470 00201314 1 Oil Separator SSD4600H 07428008 1 Flooded evaporator MZA80D 0105881601 1 Shell and Tube Condenser WN550D 0115881301 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR10 43008155 2 Magnet Coil 43008152 2 Bidirection Strainer 16 07210044 2 injector Assy 07228122 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice plate 0222802502 1 Valve 2 35 1 5 07180005 2 Expansion Valve EX7 07130333 1 Dry Filter A TDS 9611 STAS 9611 STAS 9611T 07218210 1 Filtering Core D48 07218205 3 Main Boardl WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 Contactor LC1 D170006M7C 44010237 1 Thermal Overload Relay LR9 D5369 44020375 1 27 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG550H M Name of part Part code Quantity Electric Cabinet Assy 01398012 1 Relief Valve 3 8 30bar 0718000801 1 Relief Valve 3 8 07388802 1 Compressor and fittings 2 550 00201303 1 Oil Separator SSD4600H 07428008 1 Flooded evaporator MZ525D 0105881602 1 Shell and Tube Condenser WN600D 0115881302 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR10 43008155 2 Magnet Coil 43008152 2 Bidirection Strainer 16 07210044 2 injector Assy 07228122 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice p
33. 200 7000 4043 4830 5355 5723 6510 7350 WATER COOLED SCREW CHILLER PRODUCT LSBLG H Nb M Models 180 210 240 300 340 380 450 500 kW 182 212 238 296 340 383 445 508 Nominal Cooling Capacity RT 52 60 68 84 97 109 126 144 Power Consumption kW 36 42 47 57 65 74 84 95 Power Supply 380V 3N 50Hz Running Control the colorful touch LCD liquid crystal display High low pressure protection discharge temp protection anti freeze water flow protection low water flow protection phase sequence protection Safety Apparatus compressor overload protection low oil location protection Safety valve Crankcase heaters Compressor Type Semi Hermitic Screw Compressor Refrigerant Type R134a Us 9 10 11 14 16 18 21 24 Water Flow GPM 136 158 180 224 260 290 334 383 Loss of Pressure kPa 40 45 50 60 60 62 64 66 Cooler Heat Exchanger Flooded Shell and Tube Evaporator Max Pressure MPa 1 4 Water In Out DN10 DNIO DNIO DNI2 DN12 DNI2 DNIS5 DNI5 mm Pipe Diameter 0 0 0 5 5 5 0 0 5 10 12 14 17 19 22 25 29 Water Flow GPM 163 194 216 268 308 348 396 453 Loss of Pressure kPa 53 54 62 62 63 62 67 68 Condenser Heat Exchanger Shell and Tube Condenser Max Pressure MPa 2 Water In Out DN10 DNIO DNIO DNI2 DN12 DNI2 DNIS5 DNI5 mm Pipe Diameter 0 0 0 3 5 5 0 0 Height mm 1487
34. 208031 07428001 0105880802 0115880702 07418001 07108627 43008155 43008152 07210044 0722812201 22458401 0222810309 071800042 07139065 07218210 07218205 30222061 43110028 45020203 32210012 46020054 44010280 44020383 MATINTENANCE Quantity 1 1 1 34 WATER COOLED SCREW CHILLER MATINTENANCE N 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 LSBLG300H Nb M rk ka Z Z Z Z Z 35 WATER COOLED SCREW CHILLER jan t2 t2 o t gt gt gt N 2 LSBLG340H Nb M Name of part Electric Cabinet Assy Relief Valve 3 8 Relief Valve 3 8 Compressor and fittings CSW8582 125Y 40P Oil Separator Flooded evaporator MZ340DNb Shell and Tube Condenser WN400DNb Filter Liquid Valve Sub Assy Electromagnetic Valve EVR10 Magnet Coil Bidirection Strainer 916 injector Assy Sight glasses SGN16s ODFXODF orifice plate Valve 1 5 8 Expansion Valve EX7 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Main Boardl WZ2G1A Transformer 66X28B Single phase Air Switch 3 40A C45N 6A QF1 C65N Driver EXD U00 Phase Reverse Protector EWS AC Contactor LC1 D115006M7C Thermal Overload Relay LR9 D5369 Part code 01392340 07388801 0718000804 00208033 07428004 0105880701 0115880601 07418001 07108627 4
35. 3008155 43008152 07210044 0722812201 22458401 0222810304 07189057 07130333 07218158 07218205 30222061 43110028 45020203 32210012 46020054 44010238 44020375 MATINTENANCE Quantity 1 1 1 36 WATER COOLED SCREW CHILLER ele elo N TE e S N N ji z N ON LSBLG380H Nb M Name of part Electric Cabinet Assy Relief Valve 3 8 Relief Valve 3 8 Compressor and fittings CSW8592 140Y 40P Oil Separator Flooded evaporator MZ380DNb Shell and Tube Condenser WN460DNb Filter Liquid Valve Sub Assy Electromagnetic Valve EVR10 Magnet Coil Bidirection Strainer 916 injector Assy Sight glasses SGN16s ODFXODF orifice plate Valve 1 5 8 Expansion Valve EX7 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Main Board WZ2G1A Transformer 66X28B Single phase Air Switch 3 40A C45N 6A QF1 C65N Driver EXD U00 Phase Reverse Protector EWS AC Contactor LC1 D115006M7C Thermal Overload Relay LR9 D5369 Part code 01392340 07388801 0718000804 00208034 07428004 0105880702 0115880602 07418001 07108627 43008155 43008152 07210044 0722812201 22458401 0222810309 07189057 07130333 07218158 07218205 30222061 43110028 45020203 32210012 46020054 44010238 44020375 MATINTENANCE Quantity 37 WATER COOLED SCREW CHILLER LSBLG450H Nb M RES 7 Shen and Tuve Condenser wusan vu DREES mees
36. 43008152 2 Bidirection Strainer 916 07210044 2 injector Assy 07228122 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice plate 0222802508 1 Valve 2 928 58X1 5 071800042 2 Expansion Valve EX6 121 07139065 1 Dry Filter A TDS 969 STAS 969 STAS 969T 07210041 1 Filtering Core D48 07218205 2 Main Board 1 WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 AC Contactor LC1D80M7C 44010239 1 Thermal Overload Relay LRD3357C 44020376 1 23 WATER COOLED SCREW CHILLER LSBLG290H M Electric Cabinet Assy 02408004 10 11 12 13 14 15 6 17 18 19 20 21 22 23 24 25 26 Quantity MATINTENANCE 24 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG325H M Name of part Part code Quantity Electric Cabinet Assy 02408003 1 Relief Valve 3 8 30bar 0718000801 1 Relief Valve 3 8 07388802 1 Compressor and fittings RC 2 310B F 00208005 1 Oil Separator SSD1600H 07428007 1 Flooded evaporator MZ325D 0105881502 1 Shell and Tube Condenser WN360D 0115881202 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR10 43008155 2 Magnet Coil 43008152 2 Bidirection Strainer 16 07210044 2 injector Assy 07228122 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice plate 0222802501 1 Valve 2 28 58 1 5 071800042 2 Expansion Valve EX6 121 07139065 1 Dry Filter A TDS 969 STAS 969 STAS 969T 07210041 1 Fil
37. 680H Nb M LSBLG760H Nb M LSBLG880H Nb M LSBLG1000H Nb M LSBLG1160H Nb M LSBLG1280H Nb M TEE uu 0 28 18 d 8 27 8 i 18 26 H 6 Ro Ge El 8 IS 24 WATER COOLED SCREW CHILLER LSBLG960H Nb M N r2 oO ON gt s gt gt Z felpe bhk kkk keH Name of part Shell and Tube Condenser WN1210S Flooded evaporator MZ960S Compressor and fittings RC 2 470B F Electric Cabinet Assy Oil Separator Relief Valve 3 8 30bar Relief Valve 3 8 Pipe Filter Valve 2 922 2X1 5 Electromagnetic Valve EVR10 Magnet Coil injector Assy Electromagnetic Valve EVR6 032F1236 Magnet Coil Liquid Valve Sub Assy Bidirection Strainer 916 orifice plate Electromagnetic Valve EVR10 Valve 1 5 8 Expansion Valve EX8 Dry Filter A TDS 14413 STAS 14413 STAS 14413T Filtering Core D48 Sight glasses SGN16s ODFXODF Thermal Overload Relay LR9 D5369 AC Contactor LC1 D170006M7C Main Boardl WZ2G1A Transformer 66X28B Fuse Switch XLP2 Driver EXD U00 Phase Reverse Protector EWS Single phase Air Switch 3 40A C45N 6A QF1 C65N Part code 01158815 01058818 00201314 01398051 07428010 0718000801 07388802 07219051 07180004 43008155 430
38. ETC Turn down cooling water valve s load on and unload of the compressor normal Repair the magnetic valve of the compressor MATINTENANCE 16 WATER COOLED SCREW CHILLER 2 6 Water Flow Switch Protection Water flow switch protection Is water pump normal Repair the water pump Is the water flow too small Is the water system empty Empty the water system no Is the water flow switch mounted correctly Mount it according to requirements Water flow switch error Replace water flow switch Replace main board MATINTENANCE 17 WATER COOLED SCREW CHILLER 2 7 Oil Level Switch Protection Oil level switch protection Can the oil level be seen in the mirror Inspect the filter of the oil return pipe and differential temperature of magnetic valve Is there too much freon Is the magnetic valve working normally Are pressure and temperature sensors normal Replace main board MATINTENANCE Is oil level switch normal i place main board yes Replace the oil level switch Replace filter or magnetic valve yes Release it unit it is normal no 5 the magnetic valve normal no ip Replace main board no Replace magnetic valve
39. H Nb M 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Quantity MATINTENANCE 47 WATER COOLED SCREW CHILLER LSBLG680H Nb M REGER 10 vu e as 0 13 vare PRU a mesa _ 1 U I l 9 1 Test n on er ADSYS 1 gt Thema Ove Rey RDS x RE 5 Ps Revese aF REESEN Part code 01158804 01058805 00208033 01398062 07428006 07388801 0718000804 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802605 43008155 07189057 07138119 07218158 07218205 22458401 44020375 44010237 30222061 43110028 45010017 32210012 46020054 45020203 MATINTENANCE Quantity 1 1 2 9 gt 48 WATER COOLED SCREW CHILLER LSBLG760H Nb M 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Quantity MATINTENANCE 49 WATER COOLED SCREW CHILLER LSBLG880H Nb M 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Part code 01158803 01058804 00208035 01398050 0742800301 07388801 0718000804 07219051 07180004 43008155 43008152 07228122 43000078 43008152 07108627 07210044 0222802601 43008155
40. HILLER CONTROL Load 100 load on 100 50 50 Z 9 10 11 11 5 125 13 5 intake water temperature The capacity regulation of compressor for system 2 should reach the following condition If the unit is flooded type the capacity regulation for system 2 is the same as that for system 1 The intake temperature of chilled water is T When T minimum temperature of chilled water 3 5AT minimum temperature of chilled water T T minimum temperature of chilled water 4 5AT minimum temperature of chilled water the compressor runs at 50 of the capacity When T minimum temperature of chilled water 4 5AT minimum temperature of chilled water T T minimum temperature of chilled water AT minimum temperature of chilled water the compressor runs according to unloading When T minimum temperature of chilled water AT minimum temperature of chilled water lt T T minimum temperature of chilled water 11 10AT minimum temperature of chilled water the compressor runs according to the previous capacity When T minimum temperature of chilled water 11 10AT minimum temperature of chilled water T T minimum temperature of chilled water 13 10A T minimum temperature of chilled water the compressor runs according to loading When T gt T minimum temperature of chilled water 13 10AT minimum temperature of chilled water the compressor runs at 100 capacity WATER COOLED SC
41. N OFF OFF load PULSE OFF OFF unload OFF PULSE OFF 50 OFF ON OFF OFF OFF ON 25 start up maintain OFF OFF OFF 2 5 1 Stepless Capacity Regulation during Cooling Module 1 The capacity regulation of compressor for system 1 is performed according to the following water intake temperature The intake temperature of chilled water is T When T minimum temperature of chilled water 2 5AT minimum temperature of chilled water lt T lt T minimum temperature of chilled water 3 5AT minimum temperature of chilled water the compressor runs at 50 of the capacity When T minimum temperature of chilled water 3 5AT minimum temperature of chilled water T T minimum temperature of chilled water 4 5AT minimum temperature of chilled water the compressor runs according to unloading When T minimum temperature of chilled water 4 5AT minimum temperature of chilled water T T minimum temperature of chilled water 9 10AT minimum temperature of chilled water the compressor runs according to the previous capacity When T minimum temperature of chilled water 9 10AT minimum temperature of chilled water lt T T minimum temperature of chilled water 11 10AT minimum temperature of chilled water the compressor runs according to loading When T gt T minimum temperature of chilled water 11 10AT minimum temperature of chilled water the compressor runs at 10096 capacity WATER COOLED SCREW C
42. OMMERCIAL AIR CONDITIONERS WATER COOLED SCREW CHILLER PRODUCT WATER COOLED SCREW CHILLER PRODUCT PRODUCT INTRODUCTION 1 MODELS LIST Nominal Model Power Supply x pacity Ph V Hz ppearance Model Name LSBLG190H M LSBLG290H M LSBLG325H M LSBLG430H M LSBLG480H M LSBLG550H M LSBLG650H M R22 LSBLG780H M Refrigerant 380 415 3PH LSBLG850H M 50Hz LSBLG960H M LSBLG1160H M LSBLG1360H M LSBLG1560H M 484 LSBLG1700H M 52 LSBLG180H Nb M 60 LSBLG210H Nb M 68 LSBLG240H Nb M 84 LSBLG300H Nb M 97 LSBLG340H Nb M 109 LSBLG380H Nb M 126 LSBLG450H Nb M gt R134a EE 380 3PH 50Hz 165 LSBLGSSOH Nb M 181 LSBLG640H Nb M 193 LSBLG680H Nb M 218 LSBLG760H Nb M 250 LSBLG880H Nb M 286 LSBLG1000H Nb M 328 LSBLG1160H Nb M 362 LSBLG1280H Nb M 1RT 3 517kW 12000Btu h WATER COOLED SCREW CHILLER PRODUCT 2 NOMENCLATURE LS BLG 1160 H M 1 2 3 4 5 6 Flooded Default R22 Refrigeration Nb R134a WATER COOLED SCREW CHILLER PRODUCT 3 FEATUREAS 3 1 Brief Introduction With a wide cooling capacity range from 180 to 1700 KW GREE water cooled screw chillers are being selected by more and more users for high efficiency and absolute dependability GREE chillers are now widely applied in hotel apartment restaurant office building shoppi
43. REW CHILLER CONTROL Load 100 load on 100 re o J 50 unload 50 10 11 12 125 13 5 14 5 intake water temperature Module 2 T minimum temperature of chilled water 2 T minimum temperature of chilled water AT 2 5 2 Stepless Capacity Regulation during Heating Module 1 The capacity regulation of compressor for system 1 is performed according to the following water intake temperature The intake temperature of cooling water is T When T minimum temperature of hot water 2 5AT minimum temperature of chilled water lt T lt T minimum temperature of hot water 3 5AT minimum temperature of chilled water the compressor runs at 50 of the capacity When T minimum temperature of hot water 1 5AT minimum temperature of chilled water lt T lt T minimum temperature of hot water 2 5AT minimum temperature of chilled water the compressor runs according to unloading When T minimum temperature of hot water 1 10AT minimum temperature of chilled water T lt T minimum temperature of hot water 1 5AT minimum temperature of chilled water the compressor runs according to the previous capacity When T minimum temperature of hot water 1 10AT minimum temperature of chilled water lt T lt T minimum temperature of chilled water 1 10AT minimum temperature of chilled water the compressor runs according to loading When T lt T minimum temperature of hot water 1 10A
44. T minimum temperature of chilled water the compressor runs at 10096 capacity WATER COOLED SCREW CHILLER CONTROL load 100 remain 100 dat 50 FE N 50 o 385 395 405 41 42 43 intake water temperature The capacity regulation of compressor for system 2 should reach the following condition If the unit is flooded type the capacity regulation for system 2 is the same as that for system 1 The intake temperature of cooling water is T When T minimum temperature of hot water 1 5 minimum temperature of chilled water lt T lt T minimum temperature of hot water 2 5AT minimum temperature of chilled water the compressor runs at 50 of the capacity When T minimum temperature of hot water lt T lt T minimum temperature of hot water 1 5AT minimum temperature of chilled water the compressor runs according to unloading When T minimum temperature of hot water 1 10AT minimum temperature of chilled water lt T minimum temperature of hot water the compressor runs according to the previous capacity When T minimum temperature of hot water 3 10AT minimum temperature of chilled water lt T lt T minimum temperature of chilled water 1 10AT minimum temperature of chilled water the compressor runs according to loading When T lt T minimum temperature of hot water 3 10AT minimum temperature of chilled water the compressor runs at 100 capacity
45. UNITS INSTALL 1 1 Before Installation It is a must to have related installers confirm the following situation so that the installing can be safe correct and rapid Installing site confirm if it accord with section 1 2 Hole for carrying in confirm its size height capacity and remove the obstacle Sequence for carrying in decide the way and sequence of carrying in according to the installation site and equipment Access or carrying in remove the obstacles in the access 1 2 Installation Site The unit should not be close to fire and tinder If it is installed together with heating unit such as boiler it is necessary to consider the effect of thermal radiation Select those sites where indoor temperature is below 45 and is drafty It is not permitted to install and store the unit outside or in the open air or in the environment with corrosive gaso Select the site with less dust The site should be bright for easy maintenance and inspection In order to meet the needs of maintaining inspecting and cleaning the evaporator and the heat exchange tube of the condenser there should be enough space for tubing which should be as long as the evaporator and the condenser For the sake of easy lift and overhaul it is necessary to install traveling crane or derrick car and ensure that the machine room is high enough The surrounding of the unit and the whole machine room should be drained completely 1 3 Caution for Installation
46. WIRING HELD CONTROL WIRING KMI Chilled water KM3 KM4 oW Cooling water f LSBLGI90H M LSBLGLOO0H M L SBLGT80H CV ID SWC OWL ump contactor ee0V WATER COOLED SCREW CHILLER INSTALLATION FIELD PROVIDED II FELD PROVIDED ITA e UNIT POWER SUPPLY 14 An UNIT POWER SUPPLY el i Pre y R I N I I I I I I 3 1 t i KI H LEDGEND FIELD POWER WIRING option FIELD CONTROL WIRING LSBLGI360H M LSBLGI 00H M 3 3 WIRING DIAGRAM LSBLG190H M LSBLG850H M LSBLG180H Nb M LSBLG640H Nb M INSTALLATION WATER COOLED SCREW CHILLER NIV ldx1 dwn Eld
47. ase reversal for direction of rotation Crankcase heaters Protect the unit against from refrigerant migration oil dilution and potential compressor failure WATER COOLED SCREW CHILLER 4 PRODUCT DATA 4 1 Product Data at Rated Condition Models Nominal Cooling kW Capacity RT w Power Supply Running Control Safety Apparatus Compressor Type Refrigerant Type 1 8 GPM Water Flow Cooler Heat Exchanger Water In Out Pipe Loss of Pressure kPa Diameter Vs GPM in Conde Heat Exchanger Water Flow nser Water In Out Pipe Diameter m Dimen sion e Shipping Weights kg Operation Weights kg PRODUCT LSBLG H M 190 290 325 430 480 550 650 190 298 325 430 482 550 650 54 85 92 122 137 156 185 38 59 64 83 94 104 120 380 415V 3PH 50Hz the colorful touch LCD liquid crystal display High low pressure protection discharge temp protection anti freeze water flow protection low water flow protection phase sequence protection compressor overload protection low oil location protection Safety valve Crankcase heaters Semi Hermitic Screw Compressor R22 9 14 16 21 23 25 33 147 224 246 326 365 396 515 42 45 53 57 60 62 66 DN12 DN100 DN100 DN100 I DN125 2 DN150 11 17 19 24 28 30 39 175 268 295 387 440 475 585 51 56 57 61 63 66 67 2 DN100 DN100 DN100 n DN125 ea DN200 1487 1487 1487 1680 1680 1680 1920 3160 3160 3160 3160 3160 3160 3160 1150 1150 1150 1400 1400 14
48. ction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually When the oil level of the compressor is too low the oil level switch protection will occur The corresponding error LED will 11 WATER COOLED SCREW CHILLER differential differential high pressure and pressure pressure low pressure protection protection sensor heat sensor detector of heat detector of malfunction condenser condenser outlet protection outlet MATINTENANCE light and the corresponding compressor will stop The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually When it is detected that the differential pressure of the compressor is too low the differential pressure protection will occur and the compressor will stop The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually 12 WATER COOLED SCREW CHILLER MATINTENANCE 2 FLOW CHART OF TROUBLESHOOTING 2 1 High Pressure Protection HP protection Check if it is high pressure with pressure es gauge
49. ed in either Full Load Operation or Part Load Operation Water Flow Switch A water flow switch is available for field installation in the chilled water piping to protect against evaporator freeze up under low or no flow conditions Interface is provided in the unit control center for field connection of the water flow detection switch The flow detection device needs to be prepared on field Pump control output Provide a digital output to control the secondary chilled water pump Standard unit has one pump control output Unit on off switch ON OFF switch is provided for manually switching the unit control circuit Indicator lights LED lights of indicating power on of unit running state and fault indications Filter drier Refrigerant circuits are kept free of moisture sludge acid and oil contamination by filter drier WATER COOLED SCREW CHILLER PRODUCT Under voltage and phase protection Protect against low voltage as well as phase fault reversal Sight glass A color indicator shows moisture contents and provides a mean for checking the system refrigerant charge volume Liquid line solenoid valve It will be closed when the compressor is off to prevent any liquid refrigerant from accumulating in the evaporator 3 4 Standard Control amp Safety Devices Safety valve Protect the unit against high discharge pressure Compressor built in protection device Motor winding temperature discharge gas temperature and ph
50. ent of refrigerant is specially designed which can be a great help for oil returning into compressor from refrigeration circuit At the same time the low oil location protection is applied to avoid the damnification to compressor from low oil to ensure reliability of the chiller Strict Out going test Each unit will be tested strictly not only on nominal operation condition but also minimum maximum operation condition before left factory by advanced on line test system Control panel The Control panel provides a friendly interface for the operator with the color touch LCD liquid crystal display which can display chiller s operating status diagnostic message and date curve Superior Controls GREE has provided the latest technology in controlling the chillers The control logic is designed to provide maximum efficiency to help provide continuous operation in unusual operating conditions through proactive controls and to provide the history record of operating to aid in trouble shooting Protocol for integrating with your building automation system BAS are optional available 3 3 Standard Accessories New throttling setup The new throttle setup can calculate optimal value of EER through control logic and adjust it automatically from actual value to optimal value because refrigerant flux and the high of the liquid in Flooded evaporator can be controlled accurately by Electronic expansion valve the efficiency of unit will be maximiz
51. er U _ Throttle plate d P 105 Retrigerant circle piping Electricexpansionvave Oll circle piping GREE COMMERCIAL AIR CONDITIONERS WATER COOLED SCREW CHILLER CONTROL WATER COOLED SCREW CHILLER CONTROL UNITS CONTROL 1 OPERATION FLOWCHART Power Switch Start Operation Using Remote Controller Start Chilled Water Pump Stop and Alarm Start Compressor Judgement Start Cooling Water Pump and Cooling Fan Tower Start Compressor Adjust the Capacity of Compressor Stop Compressor Judgement Stop Compressor Cooling Water Pump and Cooling Stop Fan Tower WATER COOLED SCREW CHILLER CONTROL 2 MAIN LOGIC 2 1 Startup and Stop of the unit The unit can only be started after the controller detects that all the input information is correct During cooling the unit controls the startup unload and stop of the compressor by detecting the intake temperature of the chilled water During heating the unit controls the startup unload and stop of the compressor and startup stop of the cooling tower fan by detecting the intake temperature of the cooling water Once the compressor starts up it must be kept running for at least 6 min even if the intake temperature of chilled water or cooling water reaches the temperature for stopping the unit The compressor must be stopped
52. he marks on the unit 3 According to the general diagram connect the pipe for cool water and cooling water flange or clamping band connection and set a filter in the inlet Whether the pipe is horizontally or vertically led from the unit to the water pump is decided by the user based on the site condition Manometer should be set on the inflow pipe and outflow pipe of the unit so as for measure the differential pressure of the inlet and outlet and thus estimate whether the water flow conforms to the rated water flow The control valve of cool water and cooling water must be installed on the outflow pipe of the refrigerant unit to avoid disorder of the water flow as well as eroding the heat transfer tube near the inlet 1 3 3 Water Quality Control When the water quality is bad there will be much deposit such as scale and sand in the shell and tube exchanger which will decrease the water flow and affect the rate of heat exchange Meanwhile if the quality of chilled water and cooling water is bad it will not only cause scaling affecting the rate of heat exchange and the performance of the unit but also cause erosion of the heat exchange pipe which may lead to serious leak Thus the water must be filtered and softened by the water softening equipment before flowing into the system If the water quality is too bad treat the water according to GB 50050 2007 Treatment and Design Regulation of Industrial Circulating Cooling Water The inclosed chilled
53. heat reclaim function is switched on 2 4 2 1 If the low cooling priority is selected cooling tower fan runs according to the following regulation After the unit is started up if the condition for the cooling tower fan to start is reached the cooling tower fan will run after one third of the setting time T After normal stop of the unit as for the unit with dual system both compressors stop normally the cooling tower fan will stop at the same time When the unit starts or stands by it checks the running state of the condensate pump If the condensate pump is started up When intake temperature of cooling water lt T minimum temperature of cooling water the cooling tower fan will stop When intake temperature of cooling water 2T minimum temperature of cooling water 5 C the cooling water fan will start When T minimum temperature of cooling water lt intake temperature of cooling water T minimum temperature of cooling water 5 the cooling tower fan will remain the same state If the condensate pump stops The cooling tower fan stops Note There is no cooling tower fan in water heat pump unit 2 4 2 2 If the high heat reclaim priority is selected cooling tower fan runs according to the following regulation After the unit is started up if the condition for the cooling tower fan to start is reached the cooling tower fan will run after one third of the setting time T After normal stop of the unit as for the u
54. imes if the pressure is lower than saturation pressure at 20 the corresponding compressor will stop immediately It displays system X low pressure Protection When the pressure resumes to above the saturation pressure at 2 1 the malfunction can be removed manually During standby of the unit it is detected according to the saturation pressure at 21 Flooded cooling only unit low temperature mode and flooded ground source heat pump unit when the low pressure exceeds the protection value the unit will stop and the corresponding error LED will light Display system X low pressure protection Water source heat pump unit include dry type twin screw and dry type single screw 6min before startup of the unit if the pressure is lower than the protection value for 60s or 6 min after start up of the compressor if the pressure is lower than the protection value for 5s or the low pressure switch opens the unit will stop and the display shows system X low pressure protection Resuming Protection value O Model value 1 R22 R134a Flooded cooling only unit cooling model 6 within 6 min after R22 R134a Flooded water source water source heat pump 2 cooling and heating mode startup of the compressor R22 R134a Flooded ground source heat pump cooling mode 2 other times 2 R22 R134a Flooded cooling only unit low temperature Se E mode WATER COOLED SCREW CHILLER CONTROL R22 R134a Flooded ground s
55. ing the copper in evaporates or condenser is frosted cleft The use of glycol will reduce the performance of the unit depending on concentration by Weight 10 20 30 40 50 Freezing Point U O 3 3 26 7 8 18 13 9 7 21 7 7 33 3 29 Ambient Temperature O O 8 3 47 1 7 29 6 7 20 16 7 2 26 7 16 Cooling Capacity Correction Factor 998 0 993 0 987 0 980 0 973 Water flow Correction Factor 1 036 1 060 1 092 1 132 1 182 Pressure Drop Correction Factor 1 07 1 10 1 18 1 24 1 30 12 WATER COOLED SCREW CHILLER PRODUCT 5 PIPING DIAGRAM Condenser z d d Injection E E equipment gt yl gt Qe A um zj Oil separator Compressor d E ITI LL SH of jn 1 Cool
56. late 0222802504 1 Valve 2 35 1 5 07180005 2 Expansion Valve EX7 07130333 1 Dry Filter A TDS 9611 STAS 9611 STAS 9611T 07218210 1 Filtering Core D48 07218205 3 Main Board WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 AC Contactor LC1 D170006M7C 44010237 1 Thermal Overload Relay LR9 D5369 44020375 1 28 WATER COOLED SCREW CHILLER No LSBLG650H M am Electric Cabinet Assy 01398013 Relief Valve 3 8 30bar 0718000801 7 10 11 12 13 14 15 16 17 18 Doru a sos SS om Te waspa 2 restore om Snee r war s 19 20 21 22 23 24 25 26 Quantity MATINTENANCE 29 WATER COOLED SCREW CHILLER LSBLG780H M 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Quantity MATINTENANCE 30 WATER COOLED SCREW CHILLER LSBLG850H M Electric Cabinet Assy Relief Valve 3 8 30bar Relief Valve 3 8 Compressor and fittings RC 2 790B F N AC Contactor LC1 D245M7C Thermal Overload Relay LR9 F5371 0 1 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Part code 01398013 0718000801 07388802 00201315 07428009 0105881702 0115881402 07418001 07108627 43008155 43008152 07210044 07228122 22458401 0222802507 07180005 07130333 07218210 07218205 30222061 4311
57. load 10076 100 50 N 50 3 5 385 395 40 41 42 intakewater temperature Module 2 T minimum temperature of hot water 2 T minimum temperature of hot water AT WATER COOLED SCREW CHILLER CONTROL 2 6 Protection of Compressor 2 6 1 High Pressure Protection The high pressure protection includes high pressure switch and pressure sensor When the high pressure switch opens the unit will stop and the error LED will light Display system X high pressure protection When the high pressure sensor detects the excessive protection value for successive 3 s the unit will stop and the error LED will light Display system X high pressure protection Protection Value Resuming value Model 0 0 cooling mode low temperature mode all 50 39 models heating mode all R22 models 63 48 heating mode all R134a models 70 55 2 6 2 Low Pressure Protection Low pressure protection includes low pressure switch and pressure sensor When the low pressure switch opens the unit will stop and the error LED will light Display system X low pressure protection Low pressure protection value for pressure sensor Flooded cooling only unit air condition mode and flooded water source heat pump unit 6 min after start up of the compressor if the pressure is lower than the saturation pressure at 60 the corresponding compressor will stop immediately In other t
58. load of overload compressor stops immediately The malfunction information is thermal relay compressor protection shown on the wired controller The unit can be started up only after the malfunction is removed manually When the chilled water flowing through the unit is not sufficient the flow switch protection will occur The error LED chilled flow switch chilled water of system 1 and system 2 dual system will light and all the water switch protection switch compressors chilled water pumps and cooling water pumps will stop immediately The malfunction information is shown on the wired controller It can be reset automatically When the cooling water flowing through the unit is not sufficient the flow switch protection will occur The error LED cooling chilled chilled water flow of system 1 and system 2 dual system will light and all the water switch water switch switch anti freezing heat detector anti freezing protection anti freezing heat detector compressors chilled water pumps and cooling water pumps will stop immediately The malfunction information is shown on the wired controller It can be reset automatically If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed
59. lve interval Parameters Protect ion value of Lou f lou Discharge supperhear R22 Discharge Superheat R134a Chilled Pump Pre Start Chilling pump delay OFF Cooling pump delay Off Low pressure protect delay Water flow protection delay Temp Deccrease Rate During Dual Comp Startup Tmpe Decrease Rate duringcapacity adjusting Maintenance Interface Error Record Condensed pressure1 Condensed pressure 2 System Info Interface Evaparates pressure 1 Error View Homepage view Curve diagram Evaparates pressure 1 Chilled water entering temp Chilled water leaving temp Cooling water Entering temp 1 Cooling water entering temp 2 Antifreezing temp 1 Antifreezing temp 2 Running state Discharge temp 1 Discharge temp 2 Suction temp 1 Suction temp 2 Leaving temp of condenser Opening of EEV 1 Opening of EEV 2 Oil pressure 1 heat pump Oil pressure 2 heat pump CONTROL Expansion valve step Low temp Cooling Modify Password Chilled water pump Cooling tower fan Cooling water pump Water valve Main AC Contactor Y shape AC C
60. manual reset lock out and discharge temperature protection by PTC s sensors Optimized oil management ensures minimum refrigerant dilution in oil Cooler Flooded type shell and tube type with refrigerant evaporated inside the shell and water flowing in the tubes With special high efficiency pool boiling heat exchange tubes which are expanded into a steel plate the flooded type structure enable both the theories of pool boiling and nucleation boiling to be well applied Thus the uniform refrigerant distribution optimized temperature field of heat transferring and heightened evaporating temperature are achieved so that cooling capacity and EER of the unit are improved greatly evaporator are designed constructed inspected and stamped according to the requirements of the ASME Boiler and Pressure Vessel Code Condenser The condenser is shell and tube type carbon steel fin and seamless high efficiency copper tubes with water flowing inside the shell and refrigerant flowing through the tubes Each condenser is designed constructed inspected and stamped according to the requirements of the ASME Boiler and Pressure Vessel Code WATER COOLED SCREW CHILLER PRODUCT Reliable oil return In order to ensure the oil in refrigeration system returning to compressor the secondary oil separator with both centrifugal and absorption setups is used for improving the separating efficiency of oil from refrigerant and a kind of injection equipm
61. manually WATER COOLED SCREW CHILLER heat detector of sensor heat detector of intake malfunction intake chilled chilled protection water water heat detector of sensor heat detector of outflow malfunction outflow chilled chilled protection water water heat detector of sensor heat detector of intake malfunction intake cooling cooling protection water water heat detector of sensor heat detector of outflow malfunction outflow cooling cooling protection water water heat detector of superheat superheat outflow cooling protection water anti freeze anti freezing anti freezing heat protection detector discharge discharge heat detector of high high discharge high temperature temperature temperature protection MATINTENANCE If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the co
62. movable parts and is stable so the live load for base is small The specific dimension of base is shown in general diagram of refrigerant unit In case of corrosion of the unit footing it is required that the surrounding of the unit is in good drain state The corresponding basic plane to base steel of the unit should be smooth The specific requirements are as below 1 2 3 4 The maximum altitude difference levelness should be within 3mm For easy maintenance and inspection of the refrigerant unit the base should be higher than 100mm It is necessary to install drain ditch around the refrigerant unit There should be no space between the base steel and the foot plate of the refrigerant unit Inser the adjusting shim between the base steel and the concrete base Adjust the base steel to be horizontal the altitude difference should be within 0 5mm every meter The installation base of the unit must be concrete or steely structure which can bear the running weight of the machine Besides the top should be horizontal It is better to prepare a drain ditch in the installation base Refer to the diagram of installation base Put the steel plate and anti vibration cushion in the correct position Finish the installation of the unit and the foundation bolt before secondary grouting The foundation bolt is generally exposed for about 100mm
63. mpressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually When the outflow cooling water temperature is higher than the setting value the superheat protection will occur The error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller In that case only when the outflow cooling water temperature is lower than the setting value the malfunction can be removed by manual resetting When the anti freezing heat detector detects that temperature is lower than the setting value the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller In that case only when the temperature is higher than the setting value the malfunction can be removed by manual resetting When the discharge temperature is higher than the setting value the error LED of corresponding system will light and the corresponding compressors will stop immediately malfunction inf
64. ng mall theater gymnasium hospital and so on as well as supplying cool water for machine cooling purpose based on customized design all over the world 3 2 Standard Specifications High Efficiency Full Load Operation Utilizing new screw compressor technology the chillers meet or exceed the performance requirements of ASHRAE 90 1 system components are selected for optimum performance including the condenser and evaporator sizes Excellent part load performance Because the units are not operated in full load condition most of the time integrated part load value IPLV is an important performance indicator as outlined in standard ARI550 590 1998 Thanks to the patented design of two system parallel connection technology an excellent IPLV performance has been come true Capacity control Step or stepless capacity control are optionally available enabling the unit to be turned on with the least load to reduce startup current and to match up capability output of the units to actual load which make the units operate steadily and reduce operation cost Compressor Compact suction gas cools semi hermetic twin screw compressors with high efficiency performance curve Compressors are provided with high efficiency suction strainer as well as oil trainer crank case heater and built in safety pressure relief valve Compressors are also provided with intelligent electronics including motor temperature monitoring phase reversal protection
65. nit with dual system both compressors stop normally the cooling tower fan will stop at the same time When the unit starts or stands by it checks the running state of the condensate pump If the condensate pump is started up When intake temperature of cooling water T minimum temperature of cooling water 5 C the cooling tower fan will stop When intake temperature of cooling water 2T minimum temperature of cooling water 10 C the cooling water fan will start When T minimum temperature of cooling water 5 lt intake temperature of cooling water T minimum temperature of cooling water 10 the cooling tower fan will remain the same state If the condensate pump stops The cooling tower fan stops Note There is no cooling tower fan in water heat pump unit WATER COOLED SCREW CHILLER 2 5 Capacity Regulation of Compressor CONTROL After startup of the compressor the capacity is adjusted automatically according to the detected temperature of inflow water Pulse signal works for 1s and stops for 15s Note during capacity adjustment pulse signal works for 1s and stops for 15s in other situation such as protection unload load and unload of start up and stop it works for 1s and stops for 10s The control logic of unloading magnetic valve is shown as below capacity Pulse magnetic valve Unloading magnetic valve MV2 Unload magnetic valve MV1 MV3 SV2 SV3 50 SV1 25 100 O
66. ntial temperature between inflow and outflow cooling water is higher than the setting value the error LED will light The wired controller will display the information of insufficient cooling water flow but the unit will not stop The error can be removed automatically When the controller detects for successive 10min that the differential temperature between inflow and outflow chilled water is higher than the setting value c but the unit will not stop The error can be removed automatically If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually If the sensor is wrong the error LED of system 1 and system 2 dual system will light and all the compressors will stop immediately The malfun
67. ontactor shape AC Contactor Release Solenoid Valve 1 Release Solenoid Valve 2 Release Solenoid Valve 3 Release Solenoid Valve 4 Injection Solenoid Valve Hydrojet Solenoid Valve Gas Supply Solenoid Valve By pass Solenoid Valve Oil Return Solenoid Valve Oil Balance Solenoid Valve 1 Touch User Setting into the interface for setting of System Clock Start stop Mode Timer Mode or Manual Mode Auto Antifreeze Enable Timer of Each Day of a week Chilled Water Inlet Temp hot water Inlet Temp in heating mode and SO ON 2 Touch View in homepage interface for View of running state This interface provides detailed running state of unit including each output input of sampling point and malfunction info There are 4 displaying pages The first page is about input info of sampling point the second and the third page is about the state of each output switch and the fourth one is about malfunction info Touch Curve in the first page to make temp and pressure curve diagram popped as shown below The horizontal 11 WATER COOLED SCREW CHILLER CONTROL ordinate means times and vertical one means temp and pressure value Current temp is displayed at the left side of Curve Diagram while the pressure at the right side of Curve Diagram The Curve Diagram consist of 31 pages which record temp and pressure alteration trend in up to 31 hr 1860 min shown
68. ore Open the end cover Open the end cover of the filter id remove the old filter core Replace a new one and mount the cover Vacuumize the filter via the Freon inlet and then open the ball vacuumizing valve Leak test Test the end cover and orificial leak test J screw for leakage If it is leaked tighten it 20 WATER COOLED SCREW CHILLER MATINTENANCE disassembly of the filter of the oil return pipe Remarks before disassemble the filter of the oil return pipe ensure that the inside pressure is released Otherwise it may cause accident and injury step diagram instruction discharge After stopping the unit Freon magnetic valve close the ball valve and ball valve J open the Freon inlet on freoninlet filter ball valve the ball valve to release D 1 BN fy the Freon in the pipe N J Nolo wi fp When discharging the Se Fer gt Freon the magnetic r Allen valve on the pipe must 1 he pip be energized to keep the pipe smooth replace the Solder off the filter filter from the pipe and GJE He JEE mount a new one KE valve vacuumize the pipe via pal valve Valve freon net filter ball valve the Freon inlet on the p
69. ormation is shown on the wired controller In that case only when the discharge temperature is lower than the setting value the malfunction can be removed by manual 10 WATER COOLED SCREW CHILLER protection phase Phase sequence of Lack phase sequence power protector protection supply low flow heat detector of low flow of protection inflow and outflow cooling of cooling temperature for water water cooling water low flow heat detector of low flow of protection inflow and outflow chilled of chilled temperature for water water chilled water high sensor high pressure pressure malfunction sensor sensor protection sensor low pressure low pressure malfunction sensor sensor protection discharge sensor discharge temperature malfunction temperature sensor sensor protection inspiratory sensor T inspiratory temperature malfunction temperature sensor sensor protection oil switch oil switch oil switch MATINTENANCE resetting When the phase sequence of the power supply is wrong or the power supply is lack of phase the lack phase protection will occur and the error LED of system 1 and system 2 will light and all the compressors will stop immediately The malfunction information is shown on the wired controller The unit can be started up only after the malfunction is removed manually When the controller detects for successive 10min that the differe
70. ource heat pump heating mode Dry type R22 R134 water source heat pump cooling and heating mode 2 6 3 Discharge High Temperature Protection When the discharge sensor detects that the discharge temperature is higher than protection value the unit will stop and the corresponding error LED will light Display discharge high temperature X Protection Resuming Model value 0 value 0 R22 Flooded cooling only unit cooling mode 85 65 R134a Flooded cooling only unit cooling mode 75 55 Dry type water source heat pump R22 R134a flooded ground source and water source heat pump cooling and 110 70 heating mode flooded cooling only unit low temperature mode 2 6 4 Overload protection The overload protection is the protection after the thermal relay is disconnected When the overload occurs to the compressor for 3s the unit will stop and the corresponding error LED lights Display overload protection X 2 6 5 Lack Phase Protection or winding protection and discharge high temperature protection When lack phase protection lasts for successive 2s the unit will stop and the corresponding error LED will light Display lack phase protection 2 6 6 Flow Switch Protection of Chilled water and Cooling Water When the unit stops the controller will not detect the signal of water flow switch After the cooling water pump and condensate pump start and either the chilled
71. outer wiring Caution the wire must be copper conducting wire 2 Lead power cord into electric cabinet The switch cabinet must be fitted with circuit breaker for cutting of the power of electric cabinet The power cord must be led trough the trunking wire duct or electric trench When led into the electric cabinet the power cord must be protected with rubber or plastic from scratching by edge of sheet metal The power cord near the electric cabinet must be fixed reliably so that the power terminal is not affected by the outside force It must be earthed reliably 3 Connection of control wire The control wire should be 1mm or bigger The connected signal of flow switch should be 12V weak current signal Do not lead the control wire parallel to the wire of 50V or higher voltage If it is unavoidable they must be kept a space of at least 150mm The electric cabinet has control signal of chilled water pump and cooling water pump 220V AC 5A capacity It can drive the AC contactor such as chilled water pump and cooling water pump Do not drive the motor of chilled water pump and cooling water pump directly with the control signal The reserved control wire should be suitable Do not bind the superfluous wire and fill it into the electric cabinet WATER COOLED SCREW CHILLER INSTALLATION 3 2 Electric Wiring Design MAIN POWER ENTRANCE IELD CONTROL WIRING ENTRANCE
72. ter ero steep en Fer ri ern Rete rr tee 8 3 TOUCHSCREEN CONTROLLER d ep e te e Ee Bann 10 3 1 10 3 2 Controller eege te ei edic et edi ip edicti edited 11 UNITS INSTALEATION 14 PUNITS INSTALL ct nere aote tata ein 14 1 1 Before Installation 4 teer eet e epo e kia a ki Ai a 14 12 tel ege ees O OP O ah O aa ask 14 1 3 Caution for Installation 5 eere ans sie eb eon er edd 14 1 4 Mounting Locations er ere eere e eet eT ta ER PETER REN 16 1 5RigsineInstucton ze eee ton e leno d et ED HERE XY i 17 1 6 Installation Clearance Data dni am nala 18 2 TYPICAL PIPING dion ass 19 3 ELECTRIC WIRING WORK 22 22 22 REA ERU NE TOR NT OU 1 1 3 2 Electric Wiring Design io eie ree toe tte P i e dr i w EE 2 WIRING DIAGRAM wi nennen es coven teret z 4 UNITS MAINTENANCE Gandawa wci 9 LERBORCODEDIS eI n e uA EE Ne uiu 9 2 FLOW CHART OFTROUBLESHOOTING ald ne De Ds dicat o 13 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 19 4 EXPLODED VIEWS amp PARTS LISTE aimi e RD ipm edite 22 GREE C
73. tering Core D48 07218205 2 Main Boardl WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 AC Contactor LCID80M7C 44010239 1 Thermal Overload Relay LRD3365C 44020377 1 25 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG430H M Name of part Part code Quantity Electric Cabinet Assy 01398070 1 Relief Valve 3 8 30bar 0718000801 1 Relief Valve 3 8 07388802 1 Compressor and fittings 2 410 00120053 1 Oil Separator SSD4600H 07428008 1 Flooded evaporator MZ430D 01058816 1 Shell and Tube Condenser WN520D 01158813 1 Filter 07418001 1 Liquid Valve Sub Assy 07108627 4 Electromagnetic Valve EVR10 43008155 2 Magnet Coil 43008152 2 Bidirection Strainer 916 07210044 2 injector Assy 07228122 1 Sight glasses SGN16s ODFXODF 22458401 1 orifice plate 0222802502 1 Valve 2 35 1 5 07180005 2 Expansion Valve EX7 07130333 1 Dry Filter A TDS 9611 STAS 9611 STAS 9611T 07218210 1 Filtering Core D48 07218205 3 Main Board WZ2G1A 30222061 1 Transformer 66X28B 43110028 1 Single phase Air Switch 3 40A C45N 6A QF1 C65N 45020203 1 Driver EXD U00 32210012 1 Phase Reverse Protector EWS 46020054 1 AC Contactor LC1 D170006M7C 44010237 1 Thermal Overload Relay LR9 D5369 44020375 1 26 WATER COOLED SCREW CHILLER MATINTENANCE LSBLG480H M Name of part Part code Quantity Electric Cabinet Assy 01398046 1 Relief Valve 3 8 30bar 07
74. water flow switch or the cooling water flow switch disconnects the controller will detect the flow switch for the time T successively If the controller detects that there is still switch protection signal after the setting time T the unit will stop and the corresponding error LED will light 2 6 7 Anti freezing Protection of Evaporator Either anti freezing temperature 1 or anti freezing temperature 2 is lower than T minimum anti freezing temperature the unit will stop If anti freezing protection of evaporator occurs the malfunction can be removed by manual resetting only when both anti freezing temperature 1 and anti freezing temperature 2 are equal or higher than T minimum anti freezing temperature 50 If it is lower than T minimum anti freezing temperature 50 it can not be removed even by manual resetting WATER COOLED SCREW CHILLER 3 TOUCH SCREEN CONTROLLER 3 1 Main Interface GREE GREE CENTRAL CONDITIONER 2008 02 02 09 16 57 Water cooled screw chiller Current Command Zone A 7 8 NO Name Function description User Setting can be touched into the interface for the setting of clock timer start stop 1 User setting mode and chilled water inlet temp under heating mode cooling water inlet temp Error Records can be touched into the interface for review of malfunction info of recent 2 Error record 1200 times Factory Parameters can be touched

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