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MINI CHILLER MAINTENANCE

39

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. Remove all pressure
switches and temp. sensor.

（

See

Fig.3

）

Fig. 1

Fig. 2

Electric box

Fig. 3

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Summary of Contents for T1/R22

Page 1: ...Mini Chiller Service Manual T1 R22 50Hz GREE ELECTRIC APPLIANCES INC OF ZHUHAI...

Page 2: ...19 UNITS INSTALLATION 21 1 UNITS INSTALLING 21 1 1 Installation Positions 21 1 2 Matters need Attention 21 1 3 Dimension Data 21 1 4 Installation Clearance Data 22 2 WATER PIPING WORK 24 2 1 Installat...

Page 3: ...MODELS LIST 1 1 Split Type Model Nominal Capacity Power Supply Appearance Refrigerant Model Name kW V Ph Hz Outdoor Unit indoor Unit HLR8WZ K 8 0 HLR10WSZ K 10 0 HLR12 5WSZ K 12 5 R22 HLR15WSZ K 15 0...

Page 4: ...3 1 2 Integral Type Model Nominal Capacity Power Supply Refrigerant Model Name kW V Ph Hz Appearance HLR19S A M 19 HLR25S A M 25 HLR32S A M 32 HLR35S A M 35 R22 HLR45S A M 45 380 415V 3Ph 50Hz Note 1T...

Page 5: ...nd outdoor unit code I Indoor unit O Outdoor unit 1 2 Integral Type HL R 35 S A M 1 2 3 4 5 6 NO Description Options 1 Mini chiller 2 Product type Default Cooling only R Heat pump 3 Nominal Cooling Ca...

Page 6: ...2 35X2 Type scroll Compressor NO 1 2 2 2 Heat Exchanger Tube in Tube Evaporator Water In Out Pipe Diameter Inch 1 1 1 1 Heat Exchanger Aluminum fin copper tube Condenser Fan Motor Power Input kW 0 1 0...

Page 7: ...pe Diameter Inch 1 1 1 1 2 1 1 2 1 1 2 Heat Exchanger Aluminum fin copper tube Condenser Fan Motor Power Input kW 0 4 0 4 0 6 0 6 0 6 L s 0 9 1 2 1 7 1 7 2 2 Water Flow GPM 14 5 18 9 22 9 22 9 35 2 De...

Page 8: ...R C each A NO MRC A MRC A MRC A NRC A HLR8WSZ K 1 97 21 2 1 1 5 0 7 23 4 17 HLR10WSZ K 2 49 13 2 2 2 0 7 31 22 HLR12 5WSZ K 2 52 16 1 2 3 0 7 39 28 HLR15WSZ K 220 240V 1Ph 50Hz 2 69 17 2 3 0 7 47 33 5...

Page 9: ...Relief valve Flow switch Expansion drum Highpressure tank Aluminumfin copper tube coil Four wayvalve Shell andtubeheat exchanger Inlet Outlet High pressure switch Compressor Low pressure switch Liquid...

Page 10: ...GREE COMMERCIAL AIR CONDITIONERS MINI CHILLER 9 CONTROL...

Page 11: ...MINI CHILLER CONTROL 10 UNITS CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Operation...

Page 12: ...running in heating mode Satisfying open comp condition Pump running Outdoor fan compressor and valve running Temp of back water Set temp 5 spilt type Temp of back water Set temp 6 Integral type Compr...

Page 13: ...will stop 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 after 15s If...

Page 14: ...p 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 after 15s If the outd...

Page 15: ...t 4 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 de...

Page 16: ...utton for about 5s to 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...

Page 17: ...FF QUIT ON CHECK MODE NO Name Function description 1 Running mode display cooling mode heating mode reserved 2 Temp display It shows temperature value displayed at main display area 3 Auxiliary displa...

Page 18: ...nt conditions 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 instal...

Page 19: ...No Name 1 Wall Surface 2 Bottom Plate of Wire Controller 3 Screw M4X10 4 Panel of Wire Controller Caution 1 The communication distance between the main board and the wire controller can be as far as...

Page 20: ...tdoor 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...

Page 21: ...GREE COMMERCIAL AIR CONDITIONERS MINI CHILLER 20 INSTALLATION...

Page 22: ...he unit is adequate for servicing z The space around the unit allows for sufficient air circulation z There is no danger of fire due to leakage of flammable gas z All piping lengths and distances have...

Page 23: ...72 340 HLR15WSZ K 1250 1100 370 590 340 1 4 Installation Clearance Data z Split type Outdoor unit L3 L2 L4 L1 air inlet air outlet unit mm demonstration L1 L2 L3 L4 distance 500 1000 500 500 z Split t...

Page 24: ...00 foundation bolt base rubber isolator concrete base 1200 1000 1750X2 300 3800 water outlet 2000 unit mm air outlet water inlet water outlet water inlet air inlet air inlet air inlet air inlet air in...

Page 25: ...ing Capacity Correction Factor 1 0 0 985 0 980 0 974 0 970 0 965 Water Flow Correction Factor 1 0 1 02 1 04 1 075 1 11 1 14 Pressure Drop Correction Factor 1 0 1 07 1 11 1 18 1 22 1 24 3 ELECTRIC WIRI...

Page 26: ...Diagram Split Type 3 4 1 1 Outdoor Units Model HLR8WZ K WH RD BU BU C2 KM TC C1 XT3 AP1 XT1 XT2 WH BN BN BUBK TC BN W22 BU W21 W20 RD EH 2 1 W19 RD W17 RD W18 BN W16 BN W15 W14 BK W13 YE W12 W11 WH W...

Page 27: ...W29 W28 X10 X9 X8 X7 YE BU BN WH BKBN BN BK WH BN BU YE C4 C3 compressor1 Fan motor 1 2 1 2 1 2 1 KM2 6 4 1 5 3 6 4 1 5 3 PE E YEGN M2 3 5 1 4 6 2 2 6 4 1 5 3 L1 T1 KM2 KM1 T1 L1 C1 YEGN E PE S R C CO...

Page 28: ...YE XT1 2 XT1 1 HT 15 Water Outlet Water Inlet 3 4 2 Circuit Diagram Integral Type Model HLR19S A M HLR25S A M HLR32S A M Specification 1 Auxiliary electric heater is optional part for heat pump unit o...

Page 29: ...ase 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 f...

Page 30: ...GREE COMMERCIAL AIR CONDITIONERS MINI CHILLER 29 MAINTENANCE...

Page 31: ...OFF key to clear b2 System 2 antifreeze protection Auto resume b3 Comp 2 Low pressure protection Press ON OFF key to clear b4 Comp 2 Discharge temp protection Press ON OFF key to clear b5 Comp 2 overl...

Page 32: ...wer of mainboard is failure If the power cable is fallen Cut off the power restart after the power is resumed Mainboard is broken Replace the mainboard If the fuse is burnt Replace the fuse The connec...

Page 33: ...MINI CHILLER MAINTENANCE 32 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 3 1 Split Type 3 1 1 Outdoor Unit...

Page 34: ...ion 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 Loosen the two tapping screws fixi...

Page 35: ...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 Fi...

Page 36: ...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...

Page 37: ...ove 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 weldi...

Page 38: ...nsor 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...

Page 39: ...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 pip...

Page 40: ...ure 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 Remove all pressure swi...

Page 41: ...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 5 Remove the flow switch Loosen the joints...

Page 42: ...MINI CHILLER MAINTENANCE 41 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...

Page 43: ...MINI CHILLER MAINTENANCE 42 3 2 Integral Type 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 Fig 1 Fig 2...

Page 44: ...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...

Page 45: ...ter 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 the expansion gas tank Remove the expansion gas tank See Fig 6...

Page 46: ...ixing 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 ex...

Page 47: ...ENANCE 46 4 EXPLODED VIEWS AND PART LIST 4 1 Exploded Views and Parts List Split Type 4 1 1 Outdoor Units Model HLR8WZ K O Exploded Views 30 20 29 28 27 26 25 24 23 22 17 16 10 11 12 6 8 9 7 4 3 2 1 5...

Page 48: ...r 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 0713023...

Page 49: ...MINI CHILLER MAINTENANCE 48 Part List for HLR10WSZ K O NO Name of Part Part Code Quantity 1 Front Grill 22265251 2 2 Front Plate 01435433 1...

Page 50: ...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...

Page 51: ...09067 1 25 Wire Clamp 71010102 2 26 Terminal Board 42011044 1 27 Terminal Board 42011103 1 28 Terminal Board 0 29 Capacitor CBB61 3 5 F 450V 33010010 2 30 AC Contactor GC3 18 01KK 3TF4211 44010226 1 3...

Page 52: ...012125 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...

Page 53: ...52 32 17 1 3 2 36 37 35 33 34 4 5 6 10 7 8 9 14 13 12 11 15 16 31 30 29 27 28 26 24 25 23 22 21 18 19 20 Part List for HLR8WZ K I NO Name of Part Part Code Quantity 1 Water Pump 43138218 1 2 Vertical...

Page 54: ...240 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...

Page 55: ...1 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 Relief Valve 07188204 1 31...

Page 56: ...andle 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 Reple...

Page 57: ...01 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 Relief Valve 07188204 1 3...

Page 58: ...3 Fan 10358202 2 4 Grill 01572101 2 5 Outlet Pipe Sub assy 04362102 1 6 Fan Motor SW200B 15018501 2 7 Motor Support Sub assy 01708222 2 8 Condenser Components 1 011221042 1 9 Windshield 2 01352102 1 1...

Page 59: ...29051 2 24 Gas liquid Separator 07228212 2 25 Vertical Shaft Sub assy 1 01852101 1 26 Tube in tube Heat Exchanger 009021011 1 27 Water Pump MHI404 3 400V 43138206 1 28 Expansion Vessel 072282191 1 29...

Page 60: ...202113 1 2 Base Plate Sub assy 01202111 1 3 Front Vertical Shaft Sub assy 01758211 1 4 Gas liquid Separator 07228003 2 5 Compressor and Fittings ZP83KCE TFD 522 00202231 2 6 Electric Cabinet Sub assy...

Page 61: ...3 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 Wa...

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