Gree HLR35SM/NaA-M Service Manual Download Page 40

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MODULAR MINI CHILLER MAINTENANCE

5. Phase Inversion (missing) Protection(Power Off)

Yes

Check if it happens
frequently. If necessary,

replace mainboard

Misdeclaring alarm
of controller

Contact with supplier

Replace inverse
protector

Inverse protector
is broken

Check power supply

Phase missing

Adjust connection
wires

Phase sequence of
power supply is
wrong

Phase
inversion(missing)
protection

Summary of Contents for HLR35SM/NaA-M

Page 1: ...Modular Mini Chiller Service Manual T1 R410A 50Hz GREE ELECTRIC APPLIANCES INC OF ZHUHAI...

Page 2: ...peration View 12 3 3 Display View 13 3 4 Wired Controller Operation Instructions 13 3 5 Controller Menu Structure 26 4 SKETCH MAP OF DIP SWITCH 27 UNITS INSTALLATION 29 1 UNITS INSTALL 29 1 1 Installa...

Page 3: ...MODULAR MINI CHILLER PRODUCT 3 PRODUCT...

Page 4: ...2 3 4 5 6 7 NO Description Options 1 Mini chiller 2 Product type R Heat pump 3 Nominal Cooling Capacity 35 35kW 45 45kW 4 Refrigeration Circuits Default One circuit S Twin circuit 5 Module 6 Refriger...

Page 5: ...er Evaporator Water In Out Pipe Diameter inch 1 1 2 Heat Exchanger Aluminum fin copper tube Fin sleeve Heat exchanger Condenser Fan Motor Power Input kW 0 6 0 8 L s 2 2 Water Flow GPM 29 Delivery Lift...

Page 6: ...A MRC A NRC A HLR35SM NaA M 380 415V 3Ph 50Hz 2 101 17 3 2 1 36 6 26 3 Notes LRA Locked rotor amps A MRC Maximum running current A NRC Nominal running current A 5 PIPING DIAGRAM Heating circuit Coolin...

Page 7: ...GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER 7 CONTROL...

Page 8: ...MODULAR MINI CHILLER CONTROL 8 UNITS CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Operation...

Page 9: ...MODULAR MINI CHILLER CONTROL 9 1 2 Heating Operation...

Page 10: ...of this module will stop When the anti freezing temperature is higher than the required value for resume this system will eliminate the anti freezing protection When the anti freezing temperature is b...

Page 11: ...l remain the original state and the water pump will not stop Disorderly closedown the compressor stops and then the fan stops unless the fan is wrong After the corresponding compressor stops for a per...

Page 12: ...N OFF button Control the start or stop of the unit Under stop state press the button for 3s to start up the unit Under running state press the button for 3s to stop the unit 5 RESTORE button Press thi...

Page 13: ...timing mode The manual mode is given priority to the timing mode Manual mode 1 Manual start in the unit stop state press the on off button for 3 seconds and start the unit and at that time the operati...

Page 14: ...en the unit is in the cooling heat recovery mode stop state if you select YES and press the Confirm you can go back to the home page and the unit is in the heating heat recovery operation state and if...

Page 15: ...u Home Page Press the Exit button on the wired controller at any time for enough times you can go back the default home page menu as shown above 3 4 2 2 Main Menu When home page is present on the scre...

Page 16: ...y on the screen is as follows Press the Confirm button to acknowledge a selected object press the Up or Down selection button to change a selected object and press the Exit button to cancel the model...

Page 17: ...to quit the page and go back to the previous menu and save set values f Clock Setup Select Clock Setup and press the Confirm button to go to the page The following display is present on the screen Pr...

Page 18: ...d or not The function is for selecting whether the unit will memorize its operation state if power supply is shut down 2 Module View When the Main Menu is present on the screen select Module View pres...

Page 19: ...e Exit button to quit the page and go back to the previous menu Press the Up or Down selection button to select a needed function and press the Confirm to go to corresponding page X stands for one num...

Page 20: ...ver Tin and H Aver Tin And press again the Reset button and the Exit button simultaneously for 3 seconds and C Water Tin and H Water Tin will be displayed again As such display can be converted betwee...

Page 21: ...temperature display is dependent on unit model If the temperature sensor is not existent for a certain model None would be present on the display zone for corresponding temperature point c Error View...

Page 22: ...are available below You can press the Down selection button for reading more failures If the first line is followed with a more failures are available above You can press the Up selection button for...

Page 23: ...arameter Setup and press Confirm to go to the page as shown in the following drawing Press Exit to quit the page and go back to the previous menu Press Up or Down selection button to select a needed s...

Page 24: ...ce press the Up and Down selection buttons to enter parameter value and press Confirm or Exit to go back to the Parameter Set menu other parameters can be modified in the same way After entered Defaul...

Page 25: ...the following 1 Erasing Error Press Confirm to confirm it and go back to the previous page 2 Relieve Discharge Temp Sensor locking Press Confirm to go to Code Entry page and enter correct password to...

Page 26: ...mode setting and start stop mode 2 Module view View the temperature state malfunction defrosting of the module 3 Parameter setup It can be divided into user parameter setup and system parameter setup...

Page 27: ...ich are connected with one wired controller their toggle switches indicated the address should be different Toggle switches 1 2 3 and 4 are binary code with 1 for the lowest bit and 4 for the highest...

Page 28: ...GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER 28 INSTALLATION...

Page 29: ...nit 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 been taken into consideration 1 2 Matters need Attention...

Page 30: ...bolt4 M12 1750 1000 300 1000 foundation bolt base rubber isolator concrete base 1200 1000 1750X2 300 3800 water outlet lift method Cable through the hole lift by hook 2000 unit mm air outlet water in...

Page 31: ...omatic release of air in the water circuit remains possible 2 3 Antifreeze by Weight 0 12 22 30 36 41 Freezing Point 0 32 5 23 10 14 15 5 20 4 30 22 Ambient Temperature 8 3 47 3 3 38 1 7 29 6 7 20 11...

Page 32: ...ith Consumers COM1 COM2 COM2 3 3 Specification of Power Cord Air Switch Model Power Supply Capability of Air Switch A Minimum Sectional Area of Earth Wire mm 2 Minimum Sectional Area of Power Cord mm2...

Page 33: ...ident due to over load 3 If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard 4 The appliance shall be in...

Page 34: ...GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER 34 MAINTENANCE...

Page 35: ...the low pressure will be detected by pressing heating low pressure button When the display board is on if the low pressure is lower than heating low pressure protection value the controller will send...

Page 36: ...p during heating mode and cooling mode If there is signal of temperature sensor malfunction and it resume to normal automatically the error mark will be removed automatically But if it occurs 3 times...

Page 37: ...p e n s a f te r r e p a ir o f u n it M is d e c la r in g a la r m o f c o n tr o lle r C o n ta c t w ith s u p p lie r I m p r o p e r d e s ig n o f w a te r w a y p ip e lin e a n d lo w f lo w...

Page 38: ...ly s c a le s d u rin g c o o lin g F ilte r b lo c k s Im p ro p e r d e s ig n o f w a te rw a y p ip e lin e a n d lo w flo w v o lu m e u p o n s to p o f te rm in a l C o n ta c t w ith s u p p l...

Page 39: ...heck if it happens frequently If necessary replace mainboard Misdeclaring alarm of controller Adjust discharge temp sensor Misuse discharge temp sensor easy to happen after repair of unit No No Yes Re...

Page 40: ...o Yes Check if it happens frequently If necessary replace mainboard Misdeclaring alarm of controller Contact with supplier Replace inverse protector Inverse protector is broken Check power supply Phas...

Page 41: ...AINTENANCE 41 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 3 1 Integral Type 1 Remove the front case Loosen the tappong screws fixing the front case See Fig 1 Pull down and remove the front case...

Page 42: ...e box cover Remove all pressure switches and temp sensor See Fig 3 3 Remove the shell and tube heat exchanger welding out the pipes connected to the shell and tube heat exchanger Remove the shell and...

Page 43: ...MODULAR MINI CHILLER MAINTENANCE 43 4 EXPLODED VIEW AND PARTS LIST 4 1 Exploded View and Parts List Integral Type Model HLR35SM NaA M Exploded view...

Page 44: ...mpressor and fittings 00202231 2 27 Electric heater compressor 76515404 2 28 Pressure Protect Switch 4602001515 1 29 Pressure Protect Switch 4602001512 1 30 Inhalation Tube Sub Assy 1 04672263 1 31 Ac...

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