JF00300239 R410A Mini Chiller Service Manual
Contents
1. 7 2 5 42 d a POWER RST Kme Ju N N di ajale nn uL e x CRBS RTA Le EJ b 12 Zu Temp control board APZ 13 op cus ule 0 4 8 IU kus ll e zu aff YT e 8 8 4 gt 4 e vale sloja 7 en Jet Get 4 3 RS 100 LM AT Lee SJ EMA FAL E rae Er EE uge 5 2 m e 5 m 1 i M P 5 1 2 12 a M5 M5 2 jos x IT E A EE x 3 dr Te Te re Ss Spe Spe Spe Are gon eu XN 12 FL al HPS poz FEE EE NE 724 ve me FA MODULE WIRED CONTROLLER API AC L SCH 11211112 117 Code explanation vm n X17 m D 17 Tem senor XB ACL 16 HP High pressure sith SE E 01 H LPPI 0102 H LPP2 C LPPI C LPP2 15 LPTT LPZ tng seston PCB API 14 LP12 LP2 Tisi pesme a2. X power ar pud KMS Kma PC L xm vr FUT Se Es zsov 3154 zov e 2 LOT 1 P FA 5 34195126 36 RD 40 pp 7 i EH2 84 85 i ta 48 5 OG 0 42 D 1 2 112 2 Code explanation AUXILIARY WH ELECTRICAL HEATER Tica Tiki We 9 TW Teli F j RD Thnk RD OF fine Por 2 Cie Pr Wr FA MODULBNIRED CONTROLLER 1 102 CTT XTI N p Hien pi Osten T 4 4 AR vi OG Im Ze 8 16 D Te iess Sach 8 T Far Cal i an je 9 zz air le 7 D HIR Sah 0 Cal H V SW DUCI 042 H I Ti PY ese Sem 7 Hl IR 12 042 H LPPZ C LPPI Fay Tobe der 2 FANI PUMP Kl WI An E x9 x13 x14 E E 221 1 4 ON ers zs ER 1 E E H Oni 15 er rei 5 aD al RP 65 RD ep Der rer Pole een T RD De Curen
3. HLR1SWZNa M O E ln J fe a SE soo js a 10 Bie A mo M Es 190 290 201 INSTALLATION 23 MINI CHILLER INSTALLATION HL R 8WZNa M D HL R 10WZNa M 1 HL R 12 5WZNa M I and HL R 1SWZNa M 1 ES M 572 8 1100 Integral Type HLR22SNa M HLR25Na M 2 G1 outlet G1 i inlet g d Water filled vavle 1260 1460 DNI2mm m HLR35Na M HLR45Na M Unit mm 24 MINI CHILLER INSTALLATION NN Y dm 6121 2 Water Olet
4. Name of Part Part Code Quantity 1 Front Grill 22265251 2 2 Front Plate 01435433 1 3 Protection Grill 01475432 1 4 Top Cover 01255472 1 5 Back Side Plate 01305434 1 6 Handle 26235252 3 7 Valve Support 01715001 1 8 Metal Base 01205472 1 9 Front Side Plate 01305431 1 10 Protection Grill tub 42035201 1 11 Axial Flow Fan 10335253 2 12 Condenser Assy 01109107 1 13 Motor Support 01705471 1 14 Motor LW92C 150154511 2 15 Isolation Plate 01235473 1 16 Liquid gas Separator 07225479 1 17 4 way Valve 43000338 1 18 Compressor C SBN453H8D 00129052 1 19 Gas Valve 07130212 1 20 Liquid Valve 071302335 1 2 Ambient Sensor 15K 3900012126 1 22 Temperature Sensor 20K 3900012125 1 23 Temp Sensor 3900012129 1 24 Electric Box 01392108 1 25 Wire Clamp 71010102 2 26 Terminal Board 42011044 1 27 Terminal Board 42011103 2 28 Terminal Board 0 29 Capacitor 4uF 500V 33010013 2 30 AC Contactor LC1D2501M7C 44010213 1 3 Over current Protector 46020103 1 32 Phase Reverse Protector 380V 46020052 1 33 Isolation Washer C 70410523 1 34 4 way Valve Coil 430004005 1 35 Compressor Gasket 76710209 4 36 Capillary Assy 03009105 1 37 pressure switch 460200061 1 38 Capacitor Clamp 0 39 Transformer 57X25D 43110240 1 40 7163 30221602 1 55 MINI CHILLER MAINTENANCE 4 1 2 Indoor Units Model HLR8SWZNa M D HLR
5. Turn on Tum off Pump 1 E p 55 3min Fan 1 Mhenit is tumed 16S 5S din Fan 2 zs When it is tumed off se X r Check if flow switch is ok Flow Switch RE Compressor 1 1nin Compressor 2 15 gt Tout gt 12 m Four way valve 1 E Four way valve 2 LL pw 156 13 MINI CHILLER CONTROL 2 2 Heating Mode When pressing ON button if the outdoor temperature is below 28 C the water pump will start first After 30s if the outlet water temperature meets the heating running requirements the fans of outdoor unit will start Then the compressor will run in 15s During the period of cooling the unit will be turned off if the outlet water temperature meets the stopping requirements and the running time of compressor is over the shortest running time required The fans of outdoor unit will stop in15s If the outdoor temperature is over 28 C the unit will stop and all loads except the water pump will be turned off Tum on Tum off Hb dd da 03 2 Checkif flow switch is ok Flow Switch LIP 3 TN E a When it is turned off Fan 1 ht Hio
6. MINI CHILLER CONTROL DEFROST TEST Ma Y NO Name Function description It can switch between cooling and heating This button is 1 MODE button available only on heat pump unit Press it once under normal state to enter check mode Under check mode pressing this button when 17 is displayed can change the value of 17 Under parameter 2 CHECK button setting mode pressing this once can switch the adjusting objection between parameter and value and pressing this button for long about 5s can save and quit this parameter setting 3 Increasing button To increase present set value or change set check object 4 Decreasing button To decrease present set value or change set check object Under Set and Check mode press it once to quit this mode Under parameter set mode this set value would not be 5 QUIT button saved Press this button for long about 5s to set sound and make sound switch between always on and always off To turn on the unit when under compel operation press it 6 ON button once to quit compel operation To turn off the unit press it once to quit compel operation 7 OFF button SO when the unit is under compel operation 8 LCD display Display information of the unit Note 1 Turn On Off Auxiliary Heater It is only available for heat pump unit Press CHECK once to 16 MINI CHILLER CONTROL enter Check mode Press A and W to change c
7. NO Name of Part Part Code Quantity 1 Front Grill 22265251 2 2 Front Plate 01435433 1 3 Protection Grill 01475432 1 4 Top Cover 01255262 1 5 Back Side Plate 01305434 1 6 Handle 26235252 3 7 Valve Support 01715001 1 8 Metal Base 01205433 1 9 Front Side Plate 01305431 1 10 Protection Grill Gasket 0 11 Axial Flow Fan 10335253 2 12 Condenser Assy 01125702 1 13 Motor Support 01705431 1 14 Motor FW68G 15013110 2 15 Isolation Plate 01235440 1 16 Liquid gas Separator 07225433 1 17 4 way Valve 43000338 1 18 Compressor C SBN373H8D 00129051 1 19 Gas Valve 07130212 1 20 Liquid Valve 071302115 1 21 Ambient Sensor 15K 3900012126 1 22 Temperature Sensor 20K 3900012125 1 23 Temp Limiter 0 24 Electric Box 01409067 1 25 Wire Clamp 71010102 2 26 Terminal Board 42011044 1 27 Terminal Board 42011103 1 28 Terminal Board 0 29 Capacitor CBB61 3 5uF 450V 33010010 2 30 AC Contactor GC3 18 01KK 3TF4211 44010226 1 31 Over current Protector 46020112 1 32 Phase Reverse Protector 0 33 Isolation Washer D 70410525 2 34 4 way Valve Coil 430004002 1 35 Compressor Gasket 0 36 Capillary Assy 04105702 1 37 pressure switch 460200061 1 38 Capacitor Clamp 0 39 Transformer 57X25D 43110240 1 40 Main PCB WZI163 30221602 1 53
8. 40 MINI CHILLER MAINTENANCE 5 Remove electric box Loosen the screws fixing the box cover Remove all pressure switches and temp sensor See Fig 13 6 Remove compressor and gas liquid separator Remove the connection wire of compressor See Fig 14 welding out the suction pipe and discharge pipe See Fig 14 Loosen the bolts fixing the compressor and Remove the compressor and gas liquid separator Noise absorbing cover Fig 13 Compressor Gas liquid separator Fig 14 41 MINI CHILLER MAINTENANCE 7 Remove gas and liquid valve 1 Remove gas valve Loosen the bolts fixing the gas valve welding out the pipe connected to the gas valve See Fig 15 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt 2 Remove liquid valve Loosen the bolts fixing the liquid valve welding out the pipe connected to the liquid valve See Fig 16 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt Gas 1 bolts Fig 15 Liquid vavle Fig 16 42 MINI CHILLER MAINTENANCE 3 1 2 Indoor Unit Operation Procedure Illustration 1 Remove the Cover Loosen the tapping screws fixing the cover See Fig 1 Remove the cover See Fig 2 2 Remove electric box Loosen the screws fixing the box cover Remo
9. 25 2 WATER PIPING WORK rte atre t et Cre E p beet ass dete 28 2 1 Installation Procedure ettet t t t 28 2 2 Matters Of Attention 28 23 WD ne E 28 3 ELECTRIC WIRING WORK Bonnie rl 28 3 1 Wiring Principle teet eoe eed ee eee es 28 3 2 Electrice Wirmo Design ies etd etel etr ee er ere ER e RU tates 28 3 3 SPECIFICATION OF POWER CORD amp AIR 5 eese 28 3 4 WIRING DIAGRAM tritt heater e e ret Rn in 29 3 4 1 Wiring Diagram Split 29 3 4 2 Wiring Diagram Integral Type 31 UNITS MAINTENANCE 34 TERROR CODE EST feos tent rtr ERE E ER 34 2 FLOW CHART OF TROUBLESHOOTING 35 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN 36 Typer ute oet as ee eo eed bees 36 8 2 Integral better 46 4 EXPLODED VIEWS AND PART 118 50 4 1 Exploded Views and Parts List Split Type 50 4 2 Exploded Views and Parts List Integral Type 61 MINI CHILLER PRODUCT PRODUCT INTRODUCTION 1 MODELS LIST 1 1 Split Type Nominal HLR8WZNa M 380 415V 3Ph 50Hz cg Gramm mm nose 272777777177714 HLR10WZNa M HLR12 5WZNa M HLR15WZNa M ez 2227422222121218 8 EE Eu uH OO Note 1Ton 12000Btu h 3 517kW MINI CH
10. D C LP1 HP1 ae H LP1 T8 T8 Transformer j ij CFI 12 W18 wi7 W15 RD RD BN XT3 lt E wis 1215 BN 63622239 Model HLR10WZNa M HLR12 5WZNa M MINI CHILLER INSTALLATION POWER XT1 get IL w10 2 1 I Wiz 212 1y 2 ax afi STA XTX8 wit w Wt Wi W3 W7 40 Frvironme
11. Replace the es If the fuse is Yes Replace the fuse mainboard burnt No Irme Yes Replace the transformer is burnt transformer The connection wire between display board and ainboard is loosened Yes Reconnect Replace the display board 35 MINI CHILLER MAINTENANCE he Powel cable is loosened E7 failuer Yes Cut off the power and restart after cable is N reconnected the contacto failure Replace the contactor E If the pump start Replace the If the pump failure rotates in reverse three phase unit Adjust the phase sequence off the power restart after the wire is If the wire is fallen f the flow switch failure C resumed Adjust the size and angle of the target The filter is blocked Clamp the target to pipe Clean the filter Replace the target he replenish is sufficient Replenish the No water he valve ope too small Adjust the openness of the valve 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 3 1 Split Type 3 1 1 Outdoor Unit 36 MINI CHILLER MAINTENANCE Operation Procedure Illustration 1 Remove the front case 1 Remove the panel Loosen the two tapping screws fixing the front grill Pull down and remove the front grill See Fig 2 2 Remove the cover
12. 159 mE Compressor 1 a P p a Four way Valvel INE EN 309 3min us When it is turned off Fan 2 SL Compressor 2 d 155 ail Four way Valve 2 na 1 55 L 46 lt Tout lt 52 14 MINI CHILLER CONTROL 2 3 Defrosting Mode The condition of start defrosting mode Under heating mode if the accumulative running time of compressor is over the set interval time of defrosting default 45min and the defrosting temperature is lower than the set starting temperature default 4 C the unit will start running defrosting mode and the 4 way valve will shut off and the outdoor fan will stop after 2s The condition of quit defrosting mode Under defrosting mode if the continual defrosting time is over the set continual time of defrosting default 8min and the defrosting temperature is over the set stopping temperature default 20 C the unit will restart running heating mode and the 4 way valve will turn on and the outdoor fan will run 3 WIRED CONTROLLER 3 1 Dimension dimension outline dimensior 3 2 Function 3 2 1 Operation View 15
13. KE G GY 2 2 7 Fig6 Surface Mounting of Cable Fig7 Concealed mounting of Cable AN Caution N Fig 8 Schematic Diagram of Installation No Name 1 Wall Surface 2 Bottom Plate of Wire Controller 3 Screw M4X10 4 Panel of Wire Controller 1 The communication distance between the main board and the wire controller can be as far as 20m The standard distance is 8m 2 wire controller shall not be installed in a place where there is water drop or large amount of water vapor 4 CONTROL WIRING DESIGN 19 MINI CHILLER CONTROL CNI Indoor Unit Controller CN2 twisted pair twisted pair Manual Unit Controller X17 Outdoor Unit Controller The controllers of the split type unit include manual controller indoor unit controller and outdoor unit controller The indoor unit controller communications with manual controller and outdoor unit controller in RS485 The indoor unit controller connects manual controller with 4 line twisted pair Similarly the indoor unit controller connects outdoor unit controller with 4 line twisted pair Indoor Unit Controller Manual Unit Controller twisted pair X17 Outdoor Unit Controller The controllers of the Integral type unit include manual controller and outdoor unit controller The manual
14. MINI CHILLER MAINTENANCE Part List for HLR12 5WZNa M O NO Name of Part Part Code Quantity 1 Front Grill 22265251 2 2 Front Plate 01435433 1 3 Protection Grill 01475432 1 4 Top Cover 01255262 1 5 Back Side Plate 01305434 1 6 Handle 26235252 3 7 Valve Support 01715001 1 8 Metal Base 01205433 1 9 Front Side Plate 01305431 1 10 Protection Grill Gasket 0 11 Axial Flow Fan 10335253 2 12 Condenser Assy 01125702 1 13 Motor Support 01705431 1 14 Motor FW68G 15013110 2 15 Isolation Plate 01235440 1 16 Liquid gas Separator 07225433 1 17 4 way Valve 43000338 1 18 Compressor C SBN373H8D 00102702 1 19 Gas Valve 07130212 1 20 Liquid Valve 071302115 1 21 Ambient Sensor 15K 3900012126 1 22 Temperature Sensor 20K 3900012125 1 23 Temp Limiter 0 24 Electric Box 01409067 1 25 Wire Clamp 71010102 2 26 Terminal Board 42011044 1 27 Terminal Board 42011103 1 28 Terminal Board 0 29 Capacitor CBB61 3 5uE 450V 33010010 2 30 Contactor GC3 18 01KK 3TF4211 44010226 1 31 Over current Protector 46020112 1 32 Phase Reverse Protector 0 33 Isolation Washer D 70410525 2 34 4 Valve Coil 430004002 1 35 Compressor Gasket 0 36 Capillary Assy 04105702 1 37 Pressure Switch 460200061 1 38 Capacitor Clamp 0 39 Transformer 57X25D 43110240 1 40 MainPCB WZ163 30221602 1 54 MINI CHILLER Part List for HLRI5WZNa M O MAINTENANCE
15. temp too high 1 Comp 2 High p ae Press ON OFF key to clear protection 2 System 2 antifreeze Xon E protection 3 Comp 2 Tow Press ON OFF key to clear protection tri Fri 5 w m m ON tri Coo E ond Press ON OFF key to clear protection Combes eg Press ON OFF key to clear protection Fan 2 overload protection Press ON OFF key to clear System 2 outlet water Auto resume temp too high Antifreeze temp sensor 1 1 5 Auto resume failure Antifreeze temp sensor 2 2 Auto resume failure Defrost temp sensor 1 failure Defrost temp sensor 2 4 Auto resume failure Auto resume Discharge temp sensor 1 error Discharge temp sensor 2 error utdoor ambient temp 7 Auto resume sensor failure 8 Inlet water temp sensor failure Auto resume Outlet water temp sensor failure Communication EC Auto resume malfunction Auto resume MINI CHILLER MAINTENANCE 2 FLOW CHART OF TROUBLESHOOTING The unit cannot start If the power upply is norma Power off Stop and restart Replace the fuse Yes Adjust any two phases f phase sequence protectio three phas unit No the power mainboard is failure Cut off the power restart after the power is resumed No Yes If the power cable is fallen
16. 30 MINI CHILLER INSTALLATION POWER XT1 N lt L Lk 2RD 8BU A19BU A1 N 1 2 1 2 Hom 2 B xn 14GN 2 c m HT HEATER uoc A Y s 29 16 open L N eat pump end_switc OPE CN4 m flow in AE Water Inlet TC Temp Sensor Heu AP2 CNS 7 flow out 4CN12 Water Outlet i Temp Sensor 2 e anti ice1 m T CN2 N1 Frost proof er A Temp Sensor CG P I a 4 DIAGRAM POSITION OUTDOO m zu UTDOOR UNIT amp Fx aps 1 controller xi 63622112 NS 2 3 4 2 Wiring Diagram Integral Model HLR22SNa M HLR25SNa M 31 MINI CHILLER INSTALLATION
17. GREE Mini Chiller Service Manual T1 R410A 50Hz GREE ELECTRIC APPLIANCES INC OF ZHUHAI MINI CHILLER PRODUCT CONTENTS PRODUCT INTRODUCTION 206 aa 3 BIST t PARURE HC CPP pite 3 1 1 Splhit Type n ter he tlt e teta aet deles 3 1 2 Ty pe T ae hneln 4 2 NOMENCLATURE ete 5 ae 5 1 2 Int gral Types ee RE eR IT iei 5 SBUNGTION ht Dept er en d er reto ur eto P ene bo P teret Ute 5 4 PRODUCT DATA 2 2 S nre PR DIC Pepe needs 6 4 1 Product Data at Rated Condition enne nnennnene 6 4 2 Operation Rarge ee oii ere it me Ee EE Hee ET Ht bos HERE EE 8 4 3 Pressure loss Conversion Chat 8 4 4 2 A 8 Y PIPING DIAGRAM iiem eee e eee ede e e eem be dr ean 9 UNITS CONTROL eege eet dee 11 T ORERATION FLOW CHART 11 IT oeh ae eege egen EEN ee es e iin 11 122 Heating 12 13 3S WIRED CONTROLLER 15 3 22 Display WAC RT 17 4 CONTROL WIRING DESIGN 19 UNITS INSTALLATION Sense SE 22 INSTALLATION eegener her e Eh Ee te Fe e EAE FI 22 1 1 Installation Positions sii etre ai isn does rto eren Rein 22 1 2 Matters need Atten eet WEE etre alu teet ed de ai te ete 22 1 3 DIMENSION DAD i titi a HE ss dere 22 1 2 INSTALLATION CLEARANCE
18. Loosen the two tapping screws fixing the cover Remove the cover See Fig 3 37 MINI CHILLER MAINTENANCE 3 Remove the front plate Loosen the two tapping screws fixing the front plate Remove the front plate See Fig 5 4 Remove the grill Loosen the two tapping screws fixing the grill Remove the grill See Fig 6 38 MINI CHILLER MAINTENANCE 2 Remove the axial fan Loosen the ball nuts fixing the axial fan and remove the washer See Fig 7 Pull outward to remove the impeller See Fig 7 3 Remove the motor Loosen the screws fixing the motor support Remove the motor support See Fig 8 amp Fig 9 Fig 8 Fig 9 39 MINI CHILLER MAINTENANCE Loosen the two screws fixing the motor Pull backward and remove the motor See Fig 10 Loosen the wire of motor and pull it through the hole 4 Remove the 4 way valve and capillary tube 1 Remove the 4 way valve Loosen the screws fixing the coil of 4 way valve Remove the coil of 4 way valve Welding out the tubes connected to the 4 way valve Remove the 4 way valve See Fig 11 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt 2 Remove the capillary tube Welding out the tubes connected to the capillary tube Remove the capillary See Fig 12 Fig 10 Fig 12
19. yl 27 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 please refer to the outdoor unit installation manual The units are equipped with a water inlet and water outlet for connection to a water circuit which 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 eww N Temperature 3338 1709 67Q0 170D 1670 Cooling Capacity 0 985 0 980 0 974 0 970 0 965 Correction Factor Factor 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 wiri
20. 04322108 1 26 Gas Pipe Sub Assy 04632102 1 27 Liquid Sub Assy 04322106 1 28 Outlet Water Pipe Sub Assyv 03248246 1 29 Big Handle 26233431 1 30 Relief Valve 07188204 1 31 Tube Clip 02148224 1 32 Enter Water Pipe Sub Assy 03248248 1 33 Right Side Plate 1 01312107 1 34 Water Switch FSE50P 2G1 2 45028207 1 35 Auto Water Replenishing Valve 07108207 1 36 Right Side Plate 2 01302114 1 37 Water Tube Jam 76718201 1 60 MINI CHILLER 4 2 Exploded Views and Parts List Integral Type Model HLR22SNa M HLR25Na M Exploded views 1 2 53 4 MAINTENANCE d a 5 24232012 Y hal4a 47 4 9 18 17 16 61 MINI CHILLER MAINTENANCE Part List for HLR22SNa M HLR25Na M 1 Front Panel 2 01542102 Encloser Sub ass 01512101 3 1058202 04362102 15018501 01708222 011221042 01352102 0131211 01312233 01282102 01852102 04142226 17 01282253 04632241 19 Base PlateSubasy sig 2102 04672110 24 Gas liquid Separator 07228212 Vertical Shaft Sub assy 1 01852101 Tube in tube Heat Exchanger 009021011 Water Pump MHI404 3 400 43138206 28 Expansion Vessel 072282191 2 Em Inlet Pipe Sub assy 04362103 9 Auto Water Replenishing Valve 07108207 07188204 01312109 01392114 01542101 N 62 MINI CHILLER MAINT
21. controller communications with outdoor unit controller in RS485 The manual controller connects outdoor unit controller with 4 line twisted pair 20 GREE COMMERCIAL AIR CONDITIONERS MINI CHILLER INSTALLATION 21 MINI CHILLER INSTALLATION UNITS INSTALLATION 1 UNITS INSTALLATION 1 1 Installation Positions For indoor unit Fix the indoor unit bracket to the wall using appropriate plugs and screws Hang the indoor unit on the top wall mounting bracket Fixthe indoor unit at the bottom side using appropriate plugs and screws For outdoor unit 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 Theindoor unit is heavy and should be lifted by two persons 1 3 DIMENSION DATA Split type HLR8WZNa M O 950 340 840 572 22 MINI CHILLER HLR10WZNa M O HLR12 5WZNa M O
22. 10WZNa M I HLR12 5WZNa M I HLR15WZNa M T Exploded views 56 MINI CHILLER MAINTENANCE Part List for HLR8SWZNa M D NO of Part Part Code Quantity Water Pump 43138218 1 2 Vertical Pillar Assy 01758216 4 3 Pedestal Parts 012021191 1 4 Front Panel Assy 015382471 1 5 Electric Box cover 014182371 1 6 Electric Box 01418235 1 7 Temperature Sensor 390001219 1 8 Temperature Sensor 390001217 1 9 Temperature Sensor 3900019819 1 10 Terminal Board 42010254 1 11 AC Contactor CJX9B 25S D 44010245 1 12 Transformer 57X25D 43110240 1 13 Main Board 30221501 1 14 Electric Component Mounting Plate 01338243 1 15 Wiring 40110111 1 16 Display Board 30291603 1 17 Left Side Plate 01302116 1 18 Double Pipe Heat Exchanger 00908231 1 19 Expansion Drum 07228219 1 20 Cross Beam Sub Assy 01778240 1 21 Rear Panel Assy 015382501 1 22 Cross Beam Sub Assy 1 01778240 1 23 Top Cover 012521111 1 24 Collecting Gas Pipe Sub Assy 04672101 1 25 Liquid Divider Sub Assy 04322108 1 26 Gas Pipe Sub Assy 03812159 1 27 Liquid Sub Assy 03232157 1 28 Outlet Water Pipe Sub Assyv 03248247 1 29 Big Handle 26233431 1 30 Relief Valve 07188204 1 31 Tube Clip 02148224 1 32 Enter Water Pipe Sub Assy 0324
23. 2103 1 24 Flow guide Loop 01448243 2 25 Roof Cover Plate Sub assy Right 01252105 1 26 Mortor SW300A 15018606 1 27 Mortor Mounted Plate Sub assy 01728238 2 28 Horizontal Beam Right 01778206 2 29 Condenser Components 1 01108239 1 30 Water Tray Sub assy 01272103 1 31 Rear Grill 01238202 1 32 Condenser Base Tray Sub assy 01768211 1 33 Rear Side Plate 1 01302106 1 34 Expansion Valve Sub assy 1 For Heating 07332229 1 35 Expansion Valve Sub assy 1 For Cooling 07332227 1 36 Shell in Tub GZR35S 01050809 1 37 Vertical Shaft Behind right 01722103 1 38 Current Divider 06618733 2 39 Right Side Plate 01308276 1 64 MAINTENANCE MINI CHILLER 40 Two direction Liquid vessel 07228213 2 41 Expansion Valve Sub assy 2 For Heating 07332230 1 42 Vertical Shaft Front right 01722107 1 43 Expansion Valve Sub assy 2 For Cooling 07332228 1 65
24. 61 1 2 EA Water Inlet MUI m 1290 A mo 1750 12mm 800 1 2 INSTALLATION CLEARANCE DATA Split type Outdoor unit air inlet ME gn Y Am L3 Wa Wy L4 airoutlet 9 unit mm demonstration L1 L2 L3 LA distance 2500 21000 2500 2500 Splittype Indoor unit 25 INSTALLATION MINI CHILLER HG He E Seismic Spring L2 cb KI Isolators unit mm demonstration L1 L2 L3 distance 2250 2800 21200 Integral Type INSTALLATION MINI CHILLER O001 lt 0086 006 2 04 1 SI Im 1epno Jayem BEE 05 1 Siten SE 7 7 3 5 4 2 TE JOjejos Jeqqna eseq d NET 1 i yayyno _ sese 008 0001 lt jun yooy Aq 11 eiqeo
25. 8248 1 33 Right Side Plate 1 01302118 1 34 Water switch FSF50P 2G1 2 45028207 1 35 Auto Water Replenishing Valve 07108207 1 36 Right Side Plate 2 01302114 1 37 Water tube jam 76718201 1 57 MINI CHILLER Part List for HLR10WZNa M I MAINTENANCE NO Name of Part Part Code Quantity 1 Water Pump MHI202 43138218 1 2 Vertical Pillar Assy 01758216 4 3 Pedestal Parts 012021171 1 4 Front Panel Assy 015382471 1 5 Electric Box cover 014182371 1 6 Electric Box 01418235 1 7 Temperature Sensor 390001219 1 8 Temperature Sensor 390001217 1 9 Temperature Sensor 390001216 1 10 Terminal Board 42010254 1 1 AC Contactor CJX9B 25S D 44010245 1 12 Transformer 57X25D 43110240 1 13 Main Board 7153 30221501 1 14 Electric Component Mounting Plate 01338243 1 15 Wiring 40110111 1 16 Display Board 716301 30291603 1 17 Left Side Plate 01302116 1 18 Double Pipe Heat Exchanger 009082291 1 19 Expansion Drum 07228219 1 20 Cross Beam Sub Assy 01778240 1 21 Rear Panel Assy 015382501 1 22 Cross Beam Sub Assy 1 01778236 1 23 Top Cover 012521091 1 24 Collecting Gas Pipe Sub Assy 04672101 1 25 Liquid Divider Sub Assy 04322108 1 26 Gas Pipe Sub Assy 04632102 1 27 Liquid Sub Assy 04322106 1 28 Outlet Water Pipe Sub Assyv 03248246 1 29 Big Handle 26233431 1 30 Reli
26. ENANCE Wind Shield 1 01352101 Condenser Components 2 011221052 Capillary Sub assy Cooling 04102221 Four way Valve Sub assy 2 04142227 Model HLR35Na M HLR45Na M Exploded views 17 1819 20 2122 63 33 34 35 36 37 39 MINI CHILLER MAINTENANCE Part List for HLR35Na M HLR45Na M No Name of Part Part Code Quantity 1 Base Frame Sub assy 01202113 1 2 Base Plate Sub assy 01202111 1 3 Front Vertical Shaft Sub assy 01758211 1 4 Gas liquid Separator 07228003 2 Compressor and Fittings 5 ZP83KCE TFD 522 PEE 6 Electric Cabinet Sub assy 01408249 2 7 Cover Plate for Electric cabinet 01258226 2 8 Front Side Plate 01302103 2 9 Condenser Components 2 01108240 1 10 Vertical Shaft Front right 01722107 1 11 Water Pump MHI804 431382041 1 12 Inlet Pipe Sub assy 2 04362101 1 13 Expansion Vessel 072282191 1 14 Water Flow Switch FSF50P 1R1 45028209 1 15 Left Side Plate 01308274 1 16 Vertical Shaft Behind right 01722103 1 17 Inlet Pipe Sub assy 1 03248243 1 18 Four way Valve SHF 35H 43000339 2 19 Horizontal Beam Front 01778215 1 20 Horizontal Beam Left 01778204 1 21 Fan 10518601 2 22 Horizontal Beam cover plate 01778213 1 23 Roof Cover Plate Sub assy Left 0125
27. Grill 01475401 1 4 Top Cover 01255402 1 5 Back Side Plate 01305401 1 6 Handle 26235252 3 7 Valve Support 01715402 1 8 Metal Base 01205402 1 9 Front Side Plate 01305403 1 10 Axial Flow Fan 10335401 1 11 Condenser Assy 01125703 7 1 12 Motor Support 01705402 1 13 Motor LW92C 150154511 1 14 Isolation Plate 01235403 1 15 4 way Valve SHF 20H 43000338 1 16 4 way Valve Coil 430004005 1 17 Compressor C SBN303H8D 00129050 1 18 Gas Valve 07130212 1 19 Liquid Valve 071302335 1 20 Pressure Switch 460200061 1 21 Temp Sensor 3900012126 1 22 Electric Box 01405720 1 23 Terminal Board 42011044 1 24 Transformer 57X25D 43110240 1 25 Terminal Board 42011103 1 26 MainPCB WZ163 30221602 1 27 Capacitor CBB61 4uF 500V 33010013 1 28 AC Contactor GC3 18 01KK 3TF4211 44010226 1 29 Isolation WasherD 70410525 2 30 Wire Clamp 71010102 2 51 MINI CHILLER MAINTENANCE Model HLR10WZNa M O HLR12 5WZNa M O HLR15WZNa M O Exploded views 52 MINI CHILLER Part List for HLR10WZNa M O MAINTENANCE
28. ILLER PRODUCT 1 2 Integral Type Nominal Appearance o V Ph Hz HLR25SNa M HLR35SNa M 380 415V Ban 3Ph 50Hz 35 HLR45SNa M Note 1Ton 12000Btu h 3 517kW MINI CHILLER PRODUCT 2 NOMENCLATURE 1 1 Split Type HL R 15 W Z Na M 1 2 3 4 5 6 7 NO Desripon Options Mini chiller Product type R Heat pump 8 8kW 10 10 kW 12 5 12 5kW 15 15kW Struct type Default Vertical type W Horizontal type Product configuration Na R410A Default R22 1 M 380 415V 3Ph 50Hz 1 2 Integral Type HL R 35 S Na M 1 2 3 4 5 6 NO Description Options Minicchiller 22 22kW 25 25kW 35 35kW 45 45kW 4 Refrigeration Circuits S Twin circuit 5 Na R410A Default R22 M 380 415V 3Ph 50Hz Nominal Cooling Capacity Nominal Cooling Capacity 3FUNCTION Indoor Unit Type Interface kit for up to 16 indoor units Memory restart Heating Two circuits optimized design Integral Type Low noise design Safety and reliability thanks to advance compressor balance control MINI CHILLER PRODUCT 4 PRODUCT DATA 4 1 Product Data at Rated Condition 4 1 1 Split Type HLR_WZNa id 5 kw 8 __ __ 13 15 Cooling mos o o pos Power Supply 380 415V 3Ph 50Hz High Low pressure switch compressor thermal protection over Safeties current protection lose of phase anti phase protection antifreezin
29. RS CONTROL MINI CHILLER 10 MINI CHILLER CONTROL UNITS CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Operation Open unit running in cooling mode Pump running Satisfying open comp condition Outdoor fan and compressor running Temp of back water lt Set temp Compressor and outdoor fan stop Compressor stop for 3 min 11 MINI CHILLER CONTROL 1 2 Heating Operation Open unit running in heating mode Pump running Satisfying open comp condition Outdoor fan compressor and valve running Temp of back water gt Set temp 5 spilt type Temp of back water gt Set temp 6 Integral type Compressor and outdoor fan stop Compressor stop for 3 min 12 MINI CHILLER CONTROL 2 MAIN LOGIC 2 1 Cooling Mode When pressing ON button if the outdoor temperature is above 16 C water pump will start first After 30s if the outlet water temperature meets the cooling running requirements the fans of outdoor unit will start Then the compressor will run in 15s During the period of cooling the unit will be turned off if the outlet water temperature meets the stopping requirements and the running time of compressor is over the shortest running time required The fans of outdoor unit will stop in15s If the outdoor temperature is below 16 C the unit will stop and all loads except the water pump will be turned off
30. ature unit default unit is min when it is code it displays specific error refer to Malfunction Error List but without temperature unit Individual temperature or parameter may exceed 99 then adopt AX for 100 109 bX for 110 119 CX for 120 129 dX for 130 139 EX for 140 149 FX for 150 159 and X stands for a number between 0 17 MINI CHILLER CONTROL 9 Under normal state it shows temperature for back water It means the value shown at present main display area is parameter It 5 Parameter display shows only under Parameter Check mode 6 Defrost display It displays when defrosting otherwise it doesn t displays It displays when system or compressor orders for showing which system T System ID is defrosting 8 Testing display For testing it displays under compel operation It shows the error code displayed on Main Display Area It displays when 9 Error code display there is error at system or communication Caution 1 When unit is off it displays only temperature of back water When unit is on under normal state if there is no error it displays temperature of back water if there is error it displays error code when there is no operation after 60s of pressing the button it quit back to normal state display automatically 2 Auto antifreeze operation display only for heat pump unit When auto antifreeze function is started and relevant conditio
31. ef Valve 07188204 1 31 Tube Clip 02148224 1 32 Enter Water Pipe Sub Assy 03248248 1 33 Right Side Plate 1 01312107 1 34 Water switch FSF50P 2G1 2 45028207 1 35 Auto Water Replenishing Valve 07108207 1 36 Right Side Plate 2 01302114 1 37 Water Tube Jam 76718201 1 58 MINI CHILLER MAINTENANCE Part List for HLR12 5WZNa M D Name of Part Part Code Quantity Water Pump MHD02 43138218 1 2 Vertical Pillar Assy 01758216 4 3 Pedestal Parts 012021171 1 4 Left Side Plate 01302116 1 5 Electric Box cover 014182371 1 6 Electric Box 01418235 1 7 Temperature Sensor 390001219 1 8 Temperature Sensor 390001217 1 9 Temperature Sensor 3900012116 1 10 Terminal Board 42010254 1 11 AC Contactor CJX9B 25S D 44010245 1 12 Transformer 57X25D 43110240 1 13 Main Board 7153 30221501 1 14 Electric Component Mounting Plate 01338243 1 15 Wiring 40110111 1 16 Display Board 716301 30291603 1 17 Left Side Plate 01302116 1 18 Double Pipe Heat Exchanger 00908229 1 19 Expansion Drum 07228219 1 20 Cross Beam Sub Assy 01778240 1 21 Rear Panel 015382501 1 22 Cross Beam Sub Assy 1 01778236 1 23 Top Cover 012521091 1 24 Collecting Gas Pipe Sub Assy 04672101 1 25 Liquid Divider Sub Assy 04322108 1 26 Gas Pipe Sub Assy 04632102 1 27 Liquid Sub Assy 04322106 1 28 Out
32. g protection water flow switch Refriperant R410A i Compressor scroll Heat ae Tube in Tube Evaporator Water In Out Pipe Inch Diameter Heat Exchanger Aluminum fin copper tube Lum UC Water Flow Delivery Lift _ Unit Packing p NeuGross Weights 8496 846 84 8406 Unit Packing Dimension Net Gross Weights 90 00 112 123 115 126 123 134 Models Condenser Pump MINI CHILLER 4 1 2 Integral Type Models Cooling SIDE Nominal Capacity Power ut Consumption Zn Power Refri t efrigeran Te Compressor Heat Water In Out Pipe Diameter Evaporator Heat Heat Exchanger Fan Motor o a LET pec E 2 amp NOTE 1 Cooling capacity is based on the following conditions 2 Heating capacity is based on the following conditions PRODUCT SNa M 1 19435 126250 184248 11 8 17 1 380 415V 3Ph 50Hz High Low pressure switch compressor thermal protection over current protection lose of phase anti phase protection antifreezing protection water flow switch R410A scroll Tube in Tube in Tube SH id ad Shellandtube Shellandtube Aluminum fin copper tube 680 600 755 765 leaving chilled water temp 7 outdoor air temp 35 C leaving warmed water temp 45 outdoor air temp 7 3 Wate
33. heck object and press CHECK again till the present check object becomes 17 Value 17 switches between 01 03 auxiliary heater on and 00 02 auxiliary heater off That is 00 Off gt 01 On gt 00 Off or 02 Off gt 03 On gt 02 Off 2 Check Parameter After energization for 20s press QUIT then A to enter parameter checking mode Under this mode Auxiliary display area shows the checking object and Main display area displays the value for the checking object Press A and W to change the checking object Press QUIT to quit from the check mode 3 2 2 Display View COTO gt N EY Q alia PARAMETER SET PASSWORD DEFROST ABC TEST X NO Name Function description x cooling mode heating mode 1 Running mode display de reserved 2 Temp display It shows temperature value at main display area It contains 2 numbers and a comma for showing temperature and 3 Auxiliary display area number of parameter at main display area It only displays when under Check mode and Parameter checking mode It contains a minus 2 numbers and 1 temperature unit for displaying value of temperature and parameter temperature or time value and error code When temperature value is displayed it shows value in algorism and temperature unit when time is displayed it shows algorism value but 4 Main display area without temper
34. let Water Pipe Sub Assyv 03248247 1 29 Big Handle 26233431 1 30 Relief Valve 07188204 1 31 Tube Clip 02148224 1 32 Enter Water Pipe Sub Assy 03248248 1 33 Right Side Plate 1 01312107 1 34 Water switch FSF50P 2G1 2 45028207 1 35 Auto Water Replenishing Valve 07108207 1 36 Right Side Plate 2 01302114 1 37 Water Tube Jam 76718201 1 59 MINI CHILLER Part List for HLRISWZNa M D MAINTENANCE NO Name of Part Part Code Quantity Water Pump MHD02 43138218 1 2 Vertical Pillar Assy 01758216 4 3 Pedestal Parts 012021171 1 4 Left Side Plate 01302116 1 5 Electric Box cover 014182371 1 6 Electric Box 01418235 1 7 Temperature Sensor 390001219 1 8 Temperature Sensor 390001217 1 9 Temperature Sensor 3900012116 1 10 Terminal Board 42010254 1 1 AC Contactor CJX9B 25S D 44010245 1 12 Transformer 57X25D 43110240 1 13 Main Board 7153 30221501 1 14 Electric Component Mounting Plate 01338243 1 15 Wiring 40110111 1 16 Display Board 716301 30291603 1 17 Left Side Plate 01302116 1 18 Double Pipe Heat Exchanger 00908229 1 19 Expansion Drum 07228219 1 20 Cross Beam Sub Assy 01778240 1 2 Rear Panel 015382501 1 22 Cross Beam Sub Assy 1 01778236 1 23 Top Cover 012521091 1 24 Collecting Gas Pipe Sub Assy 04672101 1 25 Liquid Divider Sub Assy
35. ll pen x PUMP me a2 x D x m xu m A ae 7 11 lind sensor 10 Tenia e 3 dl 8 69 9 Sindee breaker An 4 8 PH DEES 18 7 EH Heric heater La 6 TC Tracer 4 n 6 6 6 8 8 9 5 Leite D Kin X Sail n sad pe A A Ar Aue S 4 KM Hoi o NN n RTI mai RIS rts ete 7 em 3 FAN Wei Dest en 2 PUMP eet H Di Wm ien VE ler viii fi 1 COP pm Specification ane 1 Auxiliary electric heater is optional part for heat pump unit once it is used please connect the temp restricter HT1 with XT2 1 1 and XT2 1 2 2 Cooling only type unit do not have below parts KM5 Auxiliary electric heater LP12 LP22 Defrost temp sensor 1 3 if the chiller is connected with fancoil units please remove the wire between AC L and X16 on then connect X16 to X1 on fancoil unit patching board 4 Remarks eX means terminals on XT2 1 or XT2 2 patching board 2 HLR35SNa M HLR45SNa M
36. ng 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 3 2 Electric Wiring Design 3 2 1 Electric Wiring Design Split Type 3 2 2 Electric Wiring Design Integral Type 3 3 SPECIFICATION OF POWER CORD amp AIR SWITCH Capability Minimum Minimum Model Power Supply of Air Sectional Area of Sectional Area of Switch A Earth Wire mm Power Cord mm HLR8WZNa M 380 415V 3 50 28 MINI CHILLER INSTALLATION D EE RT RUNE Note 3 4 WIRING DIAGRAM 3 4 1 Wiring Diagram Split Type 3 4 1 1 Outdoor Units Model HLR8WZNa M 7 Discharge Defrost sensi sor le serr tenp sensor X N W4 BU I u ES w5 PE Wa BU BK o COMPONENT POSITION DIAGRAM w21 BU KM WHBU AP1 TC C COMP NC YR kre NU EI compressor On x ere GEE gt
37. ns are satisfied unit begins auto antifreeze operation At this time LCD main display area displays code d2 if there is error it displays error code 3 3 Installation 1 First select an installation position According to the size of the communication line of the wire controller leave a recess or an embedded wire hole to bury the communication line 2 If the communication line between the wire controller 85x85x20 and the indoor unit is surface mounted use 1 PVC pipe and make matching recess in the wall refer to Figure 6 If concealed installation is adopted 1 PVC pipe can be used Refer to Figure 7 3 No matter if surface mounting or concealed mounting is selected it is required to drill 2 holes in the same level which distance shall be the same as the distance 60mm of installation holes in the bottom plate of the wire controller Then insert a wood plug into each hole Fix the bottom plate of the wire controller to the wall by using the two holes Plug the communication line onto the control panel Lastly install the panel of the wire controller Caution During the installation of the bottom plate of the wire controller pay attention to the direction of the bottom plate The plate s side with two notches must be at the lower position and otherwise the panel of the wire controller cannot be correctly installed 18 MINI CHILLER CONTROL GY PVC pipe 7 WV
38. nt Discharge Discharge np sensor tenp sensor temp sensor 2 M Ne e Ne L p 2 WIS W39 W14 W46 wi W44 5 ws a y vg X18 x13 ENK d Ei 1 Transformer Leena i 8 n inm TC D1 vu 7 2 aon In 3 AH w21 e a E 3 x14 x15 mh A W23 W22 4 Pu BN S TM K R e a E EMEN Viet Siet COMP weal compressor PE compressor2 motor 1 Fan motor 2 Les W20 w24 indoor YEGN YEGN YEGN YEGN e COMPONENT POSITION HAG RAM gt C4 C3 XT2 TC C2 1 1 1 2 1 XT3 61432241 JJ Model HLR15WZNa M A Ee SCH ower 1 r D 107 dt ee 1 INDOOR UNIT VU E Ken a 2 6 2 hi gt 10 2 w16 2 n SIE BER Bee Eee e PPE H E EE Cl 32 Be Sz amp H X17 esi i r 3 Bg 32 P Sor oss 682 558 Sp 5p CO CD 59 eeek gale ss al 7 51518 553 5 wen wei wse WHIBU BK NBN WH BU BK BNBN xl RI oP iat 251 95 TA 84157474 Sei u 4 6 6 XTS 52 22 58 88 E 5 5 NT 7 58 592553535 W27 YEGNT YEGN SE C4 C3 XT2 TC C2 C1 C4 KM1 KM2 xn XT3 63622212 3 4 1 2 Indoor Units
39. ove the compressor and gas liquid separator Gas liquid separator Compressor Fig 4 47 MINI CHILLER MAINTENANCE 4 Remove the water pump Loosen the joints fixing the water pump Remove the water pump See Fig 5 5 Remove the expansion gas tank Loosen the joints fixing expansion gas tank Remove the expansion gas tank See Fig 6 Water pump Fig 5 Expansion gas tank 48 MINI CHILLER MAINTENANCE 6 Remove the flow switch Loosen the joints fixing the flow switch Remove the flow switch See Fig 7 7 Remove 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 8 Flow switch Fig 7 Shell and tube heat exchanger Fig 8 49 MINI CHILLER MAINTENANCE 4 EXPLODED VIEWS AND PART LIST 4 1 Exploded Views and Parts List Split Type 4 1 1 Outdoor Units Model HLRSWZNa M O Exploded Views Dr 27 HI OU B E 50 MINI CHILLER Part List for HLR8WZNa M O MAINTENANCE No Name of Part Part Code Quantity Front Grill 22265401 1 2 Front Plate 01435402 1 3 Protection
40. r flow range for operation must be from 70 to 120 of the rated water flow 4 The maximum allowable pressure for water pipe is 0 9MPa MINI CHILLER 4 2 Operation Range Range of Outdoor Temperature C F 16 48 15 28 4 3 Pressure loss Conversion Chart percentage 70 __ PRODUCT Loss of Pressure TOY NOTE The percentage is contrasted to nominal water flow 4 4 Electrical Data 4 4 1 Split Type NAM Fan Motor Motor Outdoor Rated Model Power HLR8WZNa M HLRIOWZNa M 380 415 V 3Ph HLR12 5WZNa M HLRI5WZNa M 4 4 2 Integral Type LRA MRC each each SC A 380 415V HLR35SNa M 3Ph 50Hz HLR45SNa M Notes LRA Locked rotor amps A MRC Maximum running current A NRC Nominal running current A PRODUCT MINI CHILLER 5 PIPING DIAGRAM Outlet Inlet High pressure Relief Flow Expansion switch Shell and tube heat valve switch drum exchanger E Pump FER ER ER UP d 54 a gt Compressor 227 COS Low pressure switch Cooling circuit Four way valve Heating circuit High pressure tank 69 Liquid gas separator L E m Aluminum fin copper tube coil GREE COMMERCIAL AIR CONDITIONE
41. t of asm T Di eT 15 ter Wir PT D 2 oy o 9 6 Po Ne Spin D Ee CS Zu 2 v iu v dt RIZ RI3 4 5 RT RI7 Em 62 14 MI WH 4 U e spun Specification 1 Auxiliary electric heater is optional part for heat pump unit once it is used please connect the temp restricter HT1 with XT2 10 and XT2 11 2 Cooling only type unit do not have below parts KM5 Auxiliary electric heater LP12 LP22 RT5 RT6 YV1 YV2 3 if the chiller is connected with fancoil units please remove the wire between AC L and X16 on PC then connect X16 to X1 on fancoil unit patching board 4 Remarks means terminals on XT2 patching board 32 GREE COMMERCIAL AIR CONDITIONERS MINI CHILLER MAINTENANCE 33 MINI CHILLER MAINTENANCE UNITS MAINTENANCE 1 ERROR CODE LIST Code Indication Control Description 1 Comp Press ON OFF key to clear protection 2 System 1 antifreeze Anarene protection Comp 1 Low pressure 3 Press ON OFF key to clear protection 4 Press ON OFF key to clear tri tri Comp 1 Discharge temp protection Comp 1 overload Press ON OFF key to clear protection Pump overload protection Press ON OFF key to clear 7 Flow switch failure Press ON OFF key to clear 8 Fan 1 overload protection Press ON OFF key to clear 9 System 1 outlet water
42. ve all pressure switches and temp sensor See Fig 3 Electric box Fig 3 MINI CHILLER MAINTENANCE 3 Remove the water pump Loosen the joints fixing the water pump Remove the water pump See Fig 4 Water pump Fig 4 4 Remove the tube in tube heat exchanger welding out the pipes connected to the tube in tube heat exchanger Remove the tube in tube heat exchanger See Fig 5 Tube in tube heat exchanger Fig 5 5 Remove the flow switch Loosen the joints fixing the flow switch Remove the flow switch See Fig 6 Flow switch Fig 6 44 MINI CHILLER MAINTENANCE 6 Remove the expansion gas tank Loosen the joints fixing the expansion gas tank Remove the expansion gas tank See Fig 7 Expansion gas tank Fig 7 45 MINI CHILLER 3 2 Integral Type MAINTENANCE 1 Remove the front case Loosen the tapping screws fixing the front case See Fig 1 Pull down and remove the front case See Fig 2 46 MINI CHILLER MAINTENANCE 2 Remove electric box Loosen the screws fixing the box cover Remove all pressure switches and temp sensor See Fig 3 3 Remove compressor and gas liquid separator Remove the connection wire of compressor See Fig 4 welding out the suction pipe and discharge pipe See Fig 4 Loosen the bolts fixing the compressor and Rem
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