Gree HLR35SM/NaA-M Service Manual
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Gree HLR35SM/NaA-M Service Manual

Gree HLR35SM/NaA-M Service Manual

Modular mini chiller
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Modular Mini Chiller Service Manual
T1/R410A/50Hz
GREE ELECTRIC APPLIANCES INC. OF ZHUHAI

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Summary of Contents for Gree HLR35SM/NaA-M

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

  • Page 2: Table Of Contents

    GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER CONTENTS PRODUCT INTRODUCTION........................4 1 MODELS LIST ............................4 1.1 Integral Type ............................4 2 NOMENCLATURE ..........................4 2.1 Integral Type ............................4 3 FUNCTION...............................4 4 PRODUCT DATA .............................5 4.1 Product Data at Rated Condition....................5 4.2 Operation Range..........................6 4.3 Electrical Data ..........................6 5 PIPING DIAGRAM ..........................6 UNITS CONTROL ............................8...
  • Page 3 MODULAR MINI CHILLER PRODUCT PRODUCT...

  • Page 4: Product Introduction

    1 MODELS LIST 1.1 Integral Type Nominal Power Model Capacity Supply Appearance Refrigerant Model Name (V,Ph,Hz) HLR35SM/NaA-M 380 415V, R410A 3Ph, 50Hz HLR45SM/NaA-M Note:1Ton =12000Btu/h = 3.517kW 2 NOMENCLATURE 2.1 Integral Type HL R 35 S M Na - M Description Options...

  • Page 5: Product Data

    MODULAR MINI CHILLER PRODUCT 4 PRODUCT DATA 4.1 Product Data at Rated Condition 4.1.1 Integral Type HLR SM/NaA-M Models Cooling Btu/h 105772 143303 11.9 Capacity Heating Btu/h 122832 167187 10.3 13.9 Cooling 11.9 18.3 Power input Heating 12.5 17.5 Power Supply 380~415V,3Ph,50Hz Safety valve;...

  • Page 6: Operation Range

    4.3.1 Integral Type Compressor Fan Motor Total Rated Power Model Supply each each 380~415V 3Ph HLR35SM/NaA-M 17.3 36.6 26.3 50Hz Notes: LRA: Locked rotor amps (A) MRC: Maximum running current (A) NRC: Nominal running current (A) 5 PIPING DIAGRAM Outlet...
  • Page 7 GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER CONTROL...

  • Page 8: Units Control

    MODULAR MINI CHILLER CONTROL UNITS CONTROL 1 OPERATION FLOWCHART 1.1 Cooling Operation...

  • Page 9: Heating Operation

    MODULAR MINI CHILLER CONTROL 1.2 Heating Operation...

  • Page 10: Main Logic

    MODULAR MINI CHILLER CONTROL 2 MAIN LOGIC 2.1 Cooling Mode 2.1.1 Control of Compressor 1 Start-stop Control--- “first start, first stop; first stop, first start” During running of the unit, the compressor is numbered instantly. It is controlled according to the principle of “first start, first stop; first stop, first start”. 2 Water Temperature Drop (Rise) Rate Control The water temperature interval is the main control, while the temperature drop (rise) rate is the auxiliary control.

  • Page 11: Anti-Freezing Running

    MODULAR MINI CHILLER CONTROL If the control function of auxiliary e-heater is switched on in the display board, it can be controlled automatically according to the inflow water temperature. It is necessary to set an interval to restart the e-heater. When the temperature detected by inflow water temperature sensor is ≤T1, the second group of auxiliary e-heaters will work.

  • Page 12: Wired Remote Controller

    MODULAR MINI CHILLER CONTROL 3 WIRED REMOTE CONTROLLER 3.1 Function The display of modular air-cooled scroll chiller shows the running parameter in real time. It can be connected with the remote control system. 3.2 Operation View Name Function description When the display board is energized, this LED lights; Power LED (red) otherwise, it is dark.

  • Page 13: Display View

    MODULAR MINI CHILLER CONTROL 3.3 Display View Name Function description Time display Display the current time. Unit name Unit name Running state Display the current running state of the unit. Number of modules The number of connected unit ON/OFF mode ON/OFF mode of the system Running mode Display the current running mode...
  • Page 14 MODULAR MINI CHILLER CONTROL following prompt window comes up on the manual operator. No ON/OFF Under low ambient Temp. Press the Confirm button for acknowledgement. If ambient temperature sensors of all linked units are at fault, pressing the on/off button, the following prompt window comes up on the manual operator.
  • Page 15 MODULAR MINI CHILLER CONTROL XXXX-XX-XX X XX:XX C Series Chiller Cool On Off Heat/Defrost Manual/Timer XModules The content of default home page menu is dependent on system state. XX stands for year, month, day, hour and minute. Only one item or none is displayed in the“ ”, representing the start/stop state of the system, starting method and quantity of linked modules.
  • Page 16 MODULAR MINI CHILLER CONTROL Timer Setup Clock Setup Sound ON OFF ON OFF Page 2 ECO.Model ON OFF Quiet Model ON OFF Memory Start ON OFF Page 3 Press the Up or Down selection button to choose a needed function and press the Confirm to go to or confirm the selection.
  • Page 17 MODULAR MINI CHILLER CONTROL d. Auto-Antifreeze Protection Set Select Auto-Antifreeze, press Confirm, and the subsequent “ON” or “OFF”, which means the function is selected or not. e. Timer Setup Select Timer Setup and press Confirm to go to the page as shown in the following drawing: Timer Setup Timer On XX:XX ON OFF...
  • Page 18 MODULAR MINI CHILLER CONTROL Select Quiet Model , press the Confirm button, and the subsequent “ON” or “OFF”, which means the function is selected or not. K Memory Start Set Select Memory Start, press the Confirm button, and the subsequent “ON” or “OFF”, which means the function is selected or not.
  • Page 19 MODULAR MINI CHILLER CONTROL A module followed with “ ”means having a failure. The following menu will display after going to the module. Temp. View State View Error View Manal Defrost Press the Exit button to quit the page and go back to the previous menu. Press the Up or Down selection button to select a needed function and press the Confirm to go to corresponding page.
  • Page 20 MODULAR MINI CHILLER CONTROL Press the Up or Down selection button to convert among the above four pages. Press the Exit button to quit the menu page and go back to the previous menu. When page 1 is present on the screen, press the Reset button and the Exit button simultaneously for 3 seconds, and C Water Tin and H Water Tin, as displayed previously, will be converted to C Aver.Tin and H Aver.Tin.
  • Page 21 MODULAR MINI CHILLER CONTROL Exthalpy Inc.EXV. 1 XXX Step Exthalpy Inc.EXV. 2 XXX Step Page 5 Dis. T Sensor 1 Lock/Unlock Dis. T Sensor 2 Lock/Unlock Page 6 Water_Out EXV. ON OFF Water_In EXV. ON OFF Page 7 Press the Up or Down selection button to convert among the above pages. Press the Exit button to quit the menu page and go back to the previous menu.
  • Page 22 MODULAR MINI CHILLER CONTROL Comp.1 HP Pro Dis T Sensor 2 Comp.1 OverLoad Pro C Water-in Sensor Fan1 OverLoad Pro C Water-out sensor Sys.1 Dis.HighTemp. Anti-Frozen Sensor C Water Flow Switch Defrost T Sensor1 Fan3 OverLoad Pro Defrost T Sensor2 Jumper Error Ambient T Sensor Com.2 HP Pro...
  • Page 23 MODULAR MINI CHILLER CONTROL completely, the following prompt will come up. Do you need to stop Unit under defrost? Press Up or Down button to convert between YES and NO, press Confirm for acknowledgement, press Exit to quit the menu and go back to the previous menu. Note: manual defrost is not allowed for two modules simultaneously.
  • Page 24 MODULAR MINI CHILLER CONTROL then the parameters will be modified to Factory Default Value After modification, press the Up or Down selection button to save parameter and quit the item. A prompt for asking whether to save the modification comes up again on the screen. Select Confirm to save it and go back to the Main menu.
  • Page 25 MODULAR MINI CHILLER CONTROL Press Exit to go back to the previous interface and press Confirm to select function as shown in the following: (1) Erasing Error Error is clear ! Press Confirm to confirm it and go back to the previous page. (2) Relieve Discharge Temp.

  • Page 26: Controller Menu Structure

    MODULAR MINI CHILLER CONTROL 3.5 Controller Menu Structure 1 User’s setup: It is the basic setting that commonly used by users, such as “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: Sketch Map Of Dip Switch

    4 for the highest bit. Comparison drawings are as follows (Caution: only in the condition of power supply shutoff can toggle switches be set): Module 1 Note: either of HLR35SM/NaA-M ,HLR45SM/NaA-M can work in one system,but the address should be different and continuous.
  • Page 28 GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER INSTALLATION...

  • Page 29: Units Installation

    Check if all indoor unit accessories are enclosed. The indoor unit is heavy and should be lifted by two persons. 1.3 Dimension Data Integral Type HLR35SM/NaA-M, HLR45SM/NaA-M Water Inlet Water Outlet Basement fixing hole 12mm...

  • Page 30: Installation Clearance Data

    MODULAR MINI CHILLER INSTALLATION 1.4 Installation Clearance Data Integral Type >2000...

  • Page 31: Water Piping Work

    MODULAR MINI CHILLER INSTALLATION 2 WATER PIPING WORK 2.1 Installation Procedure For all guidelines, instructions and specifications regarding refrigerant pipework between the indoor unit and the outdoor unit. 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 must be provided by a licensed technician and must comply with all relevant national regulations.

  • Page 32: Electrical Wires Are Connected With Consumers

    3.2 Electrical Wires are Connected with Consumers 3.3 Specification of Power Cord & Air Switch Minimum Minimum Capability of Air Sectional Area Sectional Area Model Power Supply supply cable Switch(A) of Earth of Power Wire(mm Cord(mm 380 415V H07RN-F HLR35SM/NaA-M 5G10.0mm2 ,3Ph,50Hz...

  • Page 33: Wiring Diagram

    4. The appliance shall be installed according to national regulations 5. When installing the connection wiring for manual controller, the wire must be put inside a separate protective sheath to avoid direct sunshine. 3.4 Wiring Diagram 3.4.1 Wiring Diagram- Integral Type HLR35SM/NaA-M:...
  • Page 34 GREE COMMERCIAL AIR CONDITIONERS MODULAR MINI CHILLER MAINTENANCE...

  • Page 35: Units Maintenance

    MODULAR MINI CHILLER MAINTENANCE UNITS MAINTENANCE 1 TROUBLE TABLE Source of Name of Error Description Error Signal If the high pressure switch of compressor 1 (compressor disconnects, corresponding high high pressure compressor will stop. If both compressors stop, the two pressure of compressor fans will stop later.
  • Page 36 MODULAR MINI CHILLER MAINTENANCE The successive detecting time: if it is detected that the abnormality lasts for 5s, it is error; if it is detected that the normality lasts for 3s, it is normal. When the inflow water temperature sensor is wrong, all the compressor of this module will stop immediately.

  • Page 37: Flow Chart Of Troubleshooting

    MODULAR MINI CHILLER MAINTENANCE 2 FLOW CHART OF TROUBLESHOOTING High Pressure Protection(E1) H i g h p r e s s u r e p r o t e c t i o n Y e s Y e s R e v e r s e o f c o o l i n g A d j u s t o p e r a t i o n m o d e a n d h e a t i n g...
  • Page 38 MODULAR MINI CHILLER MAINTENANCE Low Pressure Protection(E3) L o w p r e s s u r e p r o te c tio n Y e s Y e s R e v e r s e o f c o o lin g A d ju s t o p e r a tio n m o d e a n d h e a tin g T h e fa n s to p s r u n n in g...
  • Page 39 MODULAR MINI CHILLER MAINTENANCE Overload Protection(E5) Overload protection of compressor Break of compressor Replace protecting protecting module module Contact with supplier Discharge High Temperature Protection(E4) Discharge high temp. protection Add refrigerant after Leakage of leakage detection and refrigerant compensation Expansion valve is Replace expansion not open(capillary valve(capillary)
  • Page 40 MODULAR MINI CHILLER MAINTENANCE Phase Inversion (missing) Protection(Power Off) Phase inversion(missing) protection Phase sequence of Adjust connection power supply is wires wrong Phase missing Check power supply Replace inverse Inverse protector protector is broken Check if it happens Misdeclaring alarm frequently.

  • Page 41: Disassembly And Assembly Procedure Of Main Parts

    MODULAR MINI CHILLER MAINTENANCE 3 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 3.1 Integral Type (1) Remove the front case ·Loosen the tappong screws fixing the front case. See Fig. 1 ·Pull down and remove the front case. See Fig. 2 Fig.
  • Page 42 MODULAR MINI CHILLER MAINTENANCE (2) Remove electric box Loosen the screws fixing the box cover. Remove pressure switches and temp. sensor. See Fig.3 Electric box Fig. 3 (3)Remove the shell and tube heat-exchanger welding out the pipes connected to the shell and tube heat-exchanger. Remove shell tube...

  • Page 43: Exploded View And Parts List

    MODULAR MINI CHILLER MAINTENANCE 4 EXPLODED VIEW AND PARTS LIST 4.1 Exploded View and Parts List- Integral Type Model HLR35SM/NaA-M Exploded view...
  • Page 44 MODULAR MINI CHILLER MAINTENANCE Parts List Name of part Part code Quantity Centrifugal Fan 10518601 Fan Motor 15018606 Pipe Connector 06128301 Front Grill 01238202 Back Side Plate 4 01312124P Back Side Plate 1 01302107 Water Collecting Tray Sub-Assy 01272103 Electric Box Assy 01392412 Right Side Plate 01308276...

This manual is also suitable for:

Hlr45sm/naa-m

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