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Gree GC201808-III, Service Manual

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Gree GC201808-III Service Manual Download Page 160

GREE                                                                                                                                        GMV5 HR HEAT RECOVERY UNITS 

156 

PART 2 EXCEPTION AND 
TROUBLESHOOTING 

1 How to locate a faulty IDU promptly 

Use the IDU project number enquiry and faulty IDU locating function to locate a faulty IDU or wired 

controller's corresponding IDU as follows when multiple IDUs are running in one place: 

 

C01 Indoor project number and fault enquiry 

Summary of Contents for GC201808-III

Page 1: ...GMV5 HR HEAT RECOVERY UNITS GC201808 III Capacity 72000Btu h 360000Btu h Rated Frequency 60Hz Operation Range Cooling 5 52 C Heating 20 24 C ...

Page 2: ...FESSIONS 39 4 ONSITE REVIEW OF DESIGN DRAWING 42 5 CONSTRUCTION ORGANIZATION PROCESS 43 PART 2 MATERIAL SELECTION 44 1 REQUIREMENT FOR SELECTING CONSTRUCTION MATERIALS 44 2 REQUIREMENT FOR SELECTING MAJOR MATERIALS 44 PART 3 INSTALLATION SPACE REQUIREMENT 45 1 PLACE SELECTION FOR INSTALLING ODU 45 2 ODU DIMENSIONSAND INSTALLATION HOLE SIZE 46 3 INSTALLATION SPACE REQUIREMENT FOR ODU 47 PART 4 REQU...

Page 3: ...G REFRIGERANT 98 CHAPTER 3 COMMISSIONING OPERATION 101 PART 1 SECURITY REQUIREMENTS 101 1 PRECAUTIONS FOR CONSTRUCTION 101 2 PRECAUTIONS FOR THE USE OF REFRIGERANTS 101 3 FUNCTION SETTINGS OF ODUS 102 PART 2 COMMISSIONING PROCESS 125 1 NECESSITY OF VRF ENGINEERING COMMISSIONING 125 2 REQUIRED FILESAND TOOLS FOR ENGINEERING COMMISSIONING 126 3 ENGINEERING COMMISSIONING PROCEDURES 126 4 REFERENCES F...

Page 4: ...UNIT MAINTENANCE 325 PART 4 APPENDIXES 326 1 MINUTESABOUTADEBUG SOLUTION CONFIRMATION MEETING 326 2 VISUAL INSPECTION CHECKLIST OF THE DEBUG SYSTEM 326 3 DEBUG PARAMETER RECORD LIST 326 4 COMMON PARAMETER LISTS 327 5 EXPLODED VIEWSAND SPARE PART LIST 337 ...

Page 5: ...ight lead to the death or serious injury of the user CAUTION This mark indicates procedures which if improperly performed might possibly result in personal harm to the user or damage to property NOTICE is used to address practices not related to personal injury Installation Have all electric work done by a licensed electrician according to Electric Facility Engineering Standard and Interior Wire R...

Page 6: ...and burn Securely install the cover of control box and the panel If the cover and panel are not installed securely dust or water may enter the outdoor unit and fire or electric shock may result If the air conditioner is installed in a small room measures must be taken to prevent the refrigerant concentration from exceeding the safety limit when the refrigerant leaks Consult the dealer regarding th...

Page 7: ... a precision refrigeration system There is risk of damage or loss of property Keep the unit away from children The heat exchanger is very sharp It can cause the injury such as cutting the finger Also the damaged fin may result in degradation of capacity When installing the unit in a hospital communication station or similar place provide sufficient protection against noise The inverter equipment p...

Page 8: ...oduct transportation Only one person should not carry the product if it weighs more than 44lbs 20kg Some products use PP bands for packaging Do not use any PP bands for a means of transportation It is dangerous Do not touch the heat exchanger fins Doing so may cut your fingers When transporting the outdoor unit suspending it at the specified positions on the unit base Also support the outdoor unit...

Page 9: ... module are switched into energized status The outdoor heat exchange serves as the system evaporator and the heat exchanger of the IDU serves as the system condenser The circulation of air supply and air return of the IDU is performed to adjust the indoor temperature and humidity MODELS LIST Model Name Product Code Power Supply V Ph Hz Appearance GMV Q72WM B F U CN851W1590 208 230V 3ph 60Hz GMV Q9...

Page 10: ...h 60Hz GMV Q288WM B U U 460V 3ph 60Hz GMV Q312WM B F U 208 230V 3ph 60Hz GMV Q312WM B U U 460V 3ph 60Hz GMV Q336WM B F U 208 230V 3ph 60Hz GMV Q336WM B U U 460V 3ph 60Hz GMV Q360WM B F U 208 230V 3ph 60Hz GMV Q360WM B U U 460V 3ph 60Hz NCHS1B U EN04001120 208 230V 1Ph 60Hz NCHS2B U EN01600010 208 230V 1Ph 60Hz NCHS4B U EN04001130 208 230V 1Ph 60Hz NCHS8B U EN04001140 208 230V 1Ph 60Hz ...

Page 11: ...GREE GMV5 HR HEAT RECOVERY UNITS 7 2 INTERNAL PIPING DESIGN OF THE UNITS 2 1 Piping Diagram of GMV Q72WM B F U GMV Q96WM B F U GMV Q72WM B U U and GMV Q96WM B U U ...

Page 12: ...GREE GMV5 HR HEAT RECOVERY UNITS 8 2 2 Piping Diagram of GMV Q120WM B F U GMV Q120WM B U U and GMV Q144WM B1 F U ...

Page 13: ...temperature sensor of compressor Detects a compressor s exhaust gas temperature for compressor control and protection 5 High pressure circuit breaker Protects a compressor by sending feedback signal to stop the system when the compressor s discharge temperature exceeds the operating value of high pressure circuit breaker 6 Oil extractor Separates the gas and oil in the system to ensure compressor ...

Page 14: ...ce 25 Liquid intake valve Liquid intake control valve for refrigerant adjustment tank 26 Pressure valve Pressure control valve for refrigerant adjustment tank 27 Pressure balance valve Press control valve inside the refrigerant adjustment tank 28 Drain valve for cooling Drainage control valve for cooling of refrigerant adjustment tank 29 Drain valve for heating Drainage control valve for heating o...

Page 15: ...5 3 88 Starting Method Inverter Inverter Inverter Operating Range 13 100 11 100 12 100 Refrigeration Oil Brand FVC68D or FV 68H FVC68D or FV 68H FVC68D or FV 68H Oil Charge Compressor L 1 1 1 1 1 1 0 5 Oil separate tank L 4 0 4 0 5 0 Total L 5 1 5 1 6 6 Fan Type Quantity Propeller 2 Propeller 2 Propeller 2 Motor output W 750 750 750 750 750 750 Starting method Inverter Inverter Inverter Air flow r...

Page 16: ... under ARI test conditions Condensing temp 130 F Evaporating temp 45 F Return gas temp 65 F Liquid temp 115 F at 60Hz Oil charge includes the total oil amount of outdoor units residual oil amount of compressor and oil separate tank When replacing the compressor or oil separate tank only the corresponding required oil amount shall be charged Outdoor Units_Heat Recovery Ton 12 14 Model GMV Q144WM B1...

Page 17: ...420 840 1775 1420 840 1910 in 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 75 1 4 Weight Net Weight kg 370 395 lbs 816 871 Gross Weight kg 385 411 lbs 849 906 Maximum qty of connected indoor units unit 23 29 Protection Devices High Pressure Protection High pressure sensor High pressure switch Compressor Fan Over current protection Over heat protection Inverter Over current protection Over heat protection Hi...

Page 18: ...2 2 Propeller 2 2 Propeller 2 2 Motor output W 750 2 750 2 750 2 750 2 750 2 750 2 Starting method Inverter Inverter Inverter Air flow rate m3 h 14000 14000 14000 14000 14000 14000 cfm 8240 8240 8240 8240 8240 8240 Max external static pressure Pa 82 82 82 in W G 0 328 0 328 0 328 Ambient temperature range Cooling C 5 52 5 52 5 52 F 23 125 6 23 125 6 23 125 6 Heating C 20 24 20 24 20 24 F 4 75 2 4 ...

Page 19: ... the compressor or oil separate tank only the corresponding required oil amount shall be charged Outdoor Units_Heat Recovery Ton 18 20 22 Model GMV Q216WM B F U GMV Q240WM B F U GMV Q264WM B F U Module combination GMV Q96WM B F U GMV Q120WM B F U GMV Q120WM B F U GMV Q120WM B F U GMV Q72WM B F U GMV Q96WM B F U GMV Q96WM B F U Performance Nominal Cooling Capacity Btu h 216000 240000 264000 kW 63 3...

Page 20: ... 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 Packaging Dimension mm 1420 840 1775 1420 840 1775 1420 840 1775 1420 840 1775 1420 840 1775 1420 840 1775 1420 840 1775 in 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 Weight Net Weight kg 310 360...

Page 21: ...ropeller 2 2 2 Motor output W 750 2 750 2 750 2 750 2 750 2 750 2 Starting method Inverter Inverter Air flow rate m3 h 14000 14000 14000 14000 14000 14000 cfm 8240 8240 8240 8240 8240 8240 Max external static pressure Pa 82 82 in W G 0 328 0 328 Ambient temperature range Cooling C 5 52 5 52 F 23 125 6 23 125 6 Heating C 20 24 20 24 F 4 75 2 4 75 2 Refrigerant Refrigerant Type R410A R410A Refrigera...

Page 22: ...of outdoor units residual oil amount of compressor and oil separate tank When replacing the compressor or oil separate tank only the corresponding required oil amount shall be charged Outdoor Units_Heat Recovery Ton 28 30 Model GMV Q336WM B F U GMV Q360WM B F U Module combination GMV Q96WM B F U GMV Q120WM B F U GMV Q120WM B F U GMV Q120WM B F U GMV Q120WM B F U GMV Q120WM B F U Performance Nomina...

Page 23: ... 5 52 3 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 52 3 4 30 1 8 63 1 5 Packaging Dimension mm 1420 840 1775 1420 840 1775 1 420 840 1775 1420 840 1775 1420 840 1775 1 420 840 1775 in 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 55 7 8 33 1 8 69 7 8 Weight Net Weight kg 310 360 360 360 360 360 lbs 683 794 794 794 794 794 Gross Weight kg 325 375...

Page 24: ... 0 5 Oil separate tank L 4 0 4 0 5 0 Total L 5 1 5 1 6 6 Fan Type Quantity Propeller 2 Propeller 2 Propeller 2 Motor output W 750 750 750 750 750 750 Starting method Inverter Inverter Inverter Air flow rate m3 h 14000 14000 14000 cfm 8240 8240 8240 Max external static pressure Pa 82 82 82 in W G 0 328 0 328 0 328 Ambient temperature range Cooling C 5 52 5 52 5 52 F 23 125 6 23 125 6 23 125 6 Heati...

Page 25: ...or Units_Heat Recovery Ton 12 14 16 Model GMV Q144WM B U U GMV Q168WM B U U GMV Q192WM B U U Module combination GMV Q72WM B U U GMV Q72WM B U U GMV Q72WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U Performance Nominal Cooling Capacity Btu h 144000 168000 192000 kW 42 2 49 1 56 3 Rated Cooling Capacity Btu h 134000 157000 180000 Nominal Heating Capacity Btu h 162000 189000 216000 kW 47 5 ...

Page 26: ...5 305 305 315 315 315 lbs 672 672 672 694 694 694 Gross Weight kg 320 320 320 330 320 330 lbs 705 705 705 728 728 728 Maximum qty of connected indoor units unit 23 29 33 Protection Devices High Pressure Protection High pressure sensor High pressure switch Compressor Fan Over current protection Over heat protection Inverter Over current protection Over heat protection High Low voltage protection Re...

Page 27: ...erature range Cooling C 5 52 5 52 5 52 F 23 125 6 23 125 6 23 125 6 Heating C 20 24 20 24 20 24 F 4 75 2 4 75 2 4 75 2 Refrigerant Refrigerant Type R410A R410A R410A Refrigerant Charge Volume kg 11 2 11 7 11 7 11 7 9 6 11 2 11 2 lbs 25 25 79 25 79 25 79 21 25 25 Control EXV EXV EXV Pipe Connection Low pressure Gas Pipe Size mm 28 6 34 9 34 9 in 1 1 8 1 3 8 1 3 8 high pressure gas pipe mm 28 6 28 6...

Page 28: ...ount shall be charged Outdoor Units_Heat Recovery Ton 24 26 Model GMV Q288WM B U U GMV Q312WM B U U Module combination GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q120WM B U U Performance Nominal Cooling Capacity Btu h 288000 312000 kW 84 4 91 4 Rated Cooling Capacity Btu h 270000 291000 Nominal Heating Capacity Btu h 324000 351000 kW 95 0 102 9 Rated Heatin...

Page 29: ...3 1 8 69 7 8 Weight Net Weight kg 315 315 315 315 315 370 lbs 694 694 694 684 684 816 Gross Weight kg 330 330 330 330 330 385 lbs 728 728 728 728 728 849 Maximum qty of connected indoor units unit 50 53 Protection Devices High Pressure Protection High pressure sensor High pressure switch Compressor Fan Over current protection Over heat protection Inverter Over current protection Over heat protecti...

Page 30: ...ture range Cooling C 5 52 5 52 F 23 125 6 23 125 6 Heating C 20 24 20 24 F 4 75 2 4 75 2 Refrigerant Refrigerant Type R410A R410A Refrigerant Charge Volume kg 11 2 11 7 11 7 11 7 11 7 11 7 lbs 25 25 79 25 79 25 79 25 79 25 79 Control EXV EXV Pipe Connection Low pressure Gas Pipe Size mm 34 9 41 3 in 1 3 8 1 5 8 high pressure gas pipe mm 28 6 34 9 in 1 1 8 1 3 8 Liquid Pipe Size mm 19 05 19 05 in 3...

Page 31: ...sponding required oil amount shall be charged 3 2 C H Mode Exchanger C H Mode Exchanger is used for connecting outdoor unit and indoor unit and providing high pressure low pressure and medium pressure refrigerant provided by outdoor unit for cooling or heating mode and complete the refrigerant system circulation for the purpose of adjusting indoor temperature 1 C H Mode Exchanger provides multiple...

Page 32: ... 8 1 1 8 Gas High pressure mm 15 9 19 05 22 2 22 2 In 5 8 3 4 7 8 7 8 Indoor Unit Piping Connection Liquid mm 9 52 9 52 9 52 9 52 In 3 8 3 8 3 8 3 8 Gas mm 15 9 15 9 15 9 15 9 In 5 8 5 8 5 8 5 8 3 3 Combination Mode Model Single GMV Q144WM B F U GMV Q168WM B F U GMV Q192WM B F U Model Combined GMV Q72WM B F U GMV Q72WM B F U GMV Q72WM B F U GMV Q96WM B F U GMV Q96WM B F U GMV Q96WM B F U Model Sin...

Page 33: ...MV Q120WM B U U GMV Q120WM B U U GMV Q72WM B U U GMV Q96WM B U U GMV Q96WM B U U Model Single GMV Q288WM B U U GMV Q312WM B U U GMV Q336WM B U U Model Combined GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q96WM B U U GMV Q120WM B U U GMV Q96WM B U U GMV Q120WM B U U GMV Q120WM B U U Model Single GMV Q360WM B U U Model Combined GMV Q120WM B U U GMV Q120WM B U U GMV Q120WM B U...

Page 34: ...0 GMV Q336WM B F U 208V 230V 3 60Hz 45 60 60 37 50 50 45 60 60 GMV Q360WM B F U 208V 230V 3 60Hz 60 60 60 50 50 50 60 60 60 GMV Q72WM B U U 460V 3 60Hz 20 15 20 GMV Q96WM B U U 460V 3 60Hz 25 18 25 GMV Q120WM B U U 460V 3 60Hz 30 25 30 GMV Q144WM B U U 460V 3 60Hz 20 20 15 15 20 20 GMV Q168WM B U U 460V 3 60Hz 20 25 15 18 20 25 GMV Q192WM B U U 460V 3 60Hz 25 25 18 18 25 25 GMV Q216WM B U U 460V 3...

Page 35: ...ERY UNITS 31 4 2 Circuit Diagram 4 2 1 Circuit Diagram of ODU The actual wiring should always refer to the wiring diagram of the unit Circuit diagram of GMV Q72WM B F U and GMV Q96WM B F U Circuit diagram of GMV Q120WM B F U ...

Page 36: ...GREE GMV5 HR HEAT RECOVERY UNITS 32 Circuit diagram of GMV Q144WM B1 F U Circuit diagram of GMV Q168WM B1 F U ...

Page 37: ...Q72WM B U U and GMV Q96WM B U U Circuit diagram of GMV Q120WM B U U When conducting maintenance based on above circuit diagrams units must be power off Please strictly following the circuit diagrams when reconnecting the wires otherwise electric shock may occur ...

Page 38: ...es 6 BASIC REQUIREMENT FOR PIPE CONNECTION 1 Outdoor units adopt the modular combination design of individual cooling system that is units are connected by using pipes in parallel during installation The tubing system used among modules includes Liquid pipes high pressure gas pipes and low pressure gas pipes Functions of oil check valve During after sale maintenance the oil check valve can be used...

Page 39: ... 0 259 2 GMV Q216WM B F U 36 108 0 291 6 GMV Q240WM B F U 39 120 0 324 0 GMV Q264WM B F U 46 132 0 356 4 GMV Q288WM B F U 50 144 0 388 8 GMV Q312WM B F U 53 156 0 421 2 GMV Q336WM B F U 56 168 0 453 6 GMV Q360WM B F U 59 180 0 486 0 GMV Q72WM B U U 13 36 0 97 2 GMV Q96WM B U U 16 48 0 129 6 GMV Q120WM B U U 19 60 0 162 0 GMV Q144WM B U U 23 72 0 194 4 GMV Q168WM B U U 29 84 0 226 8 GMV Q192WM B U ...

Page 40: ...f refrigerant kg which is charged before leaving the factory for the system consisting of multiple modules in parallel the accumulative charge quantity of modules before leaving the factory is used Total amount of refrigerant kg in the system The maximum amount of refrigerant kg in the system 3 When the total amount of refrigerant in the system is more than the maximum amount of refrigerant the co...

Page 41: ...IT OPERATING TEMPERATURE Cooling operation Ambient temperature 5 C 23 F 52 C 125 6 F Heating operation Ambient temperature 20 C 4 F 24 C 75 2 F Heat recovery operation Ambient temperature 10 C 14 F 20 C 68 F In the case of a full fresh air conditioning IDU the unit operating temperature is as follows Cooling operation Ambient temperature 16 C 60 8 F 45 C 113 F Heating operation Ambient temperature...

Page 42: ... wear is increased or even hinder the normal operation of the system and burn the compressor 2 Nitrogen is not filled into the refrigerant pipe or insufficient Nitrogen is filled before welding Pipes are more likely to be blocked air conditioning performance is reduced compressor wear is increased or even hinder the normal operation of the system and burn the compressor 3 The vacuum degree in the ...

Page 43: ...ation 16 The IDU or the location of the air outlet or return air inlet is not designed reasonably The air outlet or return air inlet may be short circuited thus affecting the air conditioning performance 17 The ODU is improperly installed The ODU is difficult to be maintained unit exhaust is not smooth which reduces the heat exchanging performance or even prevent the system from normal operation i...

Page 44: ...ir conditioning pipes should be laid out along the bottom of the beam as possible If pipes meet one another at the same elevation process based on the following principles 1 Drain pipes enjoy the highest priority Air ducts and pressure pipes should leave places for gravity pipes 2 Air ducts and small pipes should leave places for major pipes 3 3 Requirements for cooperation with electric After the...

Page 45: ... reinforcement Working drawing preparation Pipe laying Indoor unit installation Refrigerant piping Water drainage piping Piping Insulation Electric Outdoor unit foundation Outdoor unit installation Leakage test Vacuum dehumidification Refrigerant charging Decorative board installation Ceiling preparation Concrete engineering on the roof Indoor and outdoor spaces cleaning Pilot run after power on U...

Page 46: ...ess is the lower the adjustment capacity of an air conditioning unit will be 2 The difference of level between an ODU and an IDU and that between IDUs must be set within the designed range 2 The pipe diameter and manifold type in the cooling system must meet relevant technical specifications 3 The drainage method of unit condensate water must be reasonable the pipeline slope must follow the design...

Page 47: ...indoor unit and outdoor unit Pilot run check on indoor unit Connecting the indoor unit and outdoor unit Insulation Power cable connection Outdoor unit installation Connecting pipe installation Purging pressure maintaining and leak detection Welding Pressuremaintaining andleakdetection Vacuum pumping Refrigerant charging Open the valve Unitcommissioning As built drawing User manual delivery Air vol...

Page 48: ... 2H Φ34 90 1 3 8 1 3 2 39 1 2H Φ41 30 1 5 8 1 5 1 17 1 2H After the inner part of the copper pipe is cleaned and dried the inlet and outlet must be sealed tightly by using pipe caps plugs or adhesive tapes 2 2 Communication cable and control cable For air conditioning units installed in places with strong electromagnetic interference shielded wire must be used as the communication cables of the ID...

Page 49: ... with local rules and regulations Wall thickness of copper pipe shall be consistent with above requirements and the design operating pressure shall not be lower than 3 8MPa 551psi But if local authority has a higher requirement please design and construct according to local safety standards Materials of communication cable shall be consistent with above requirements If there is conflict between th...

Page 50: ...STALLATION HOLE SIZE External and installation dimensions of GMV Q72WM B F U GMV Q96WM B F U GMV Q120WM B F U GMV Q144WM B1 F U GMV Q72WM B U U GMV Q96WM B U U and GMV Q120WM B U U Unit mm in External and installation dimensions of GMV Q168WM B1 F U Unit mm in ...

Page 51: ...2 Installation space requirements for the dual module unit 3 Installation space requirements for triple module unit 2 When there is wall or similar obstruction above the unit keep the distance between the unit top and the wall at least 3000mm 118 1 8inch or above When the unit is located in a totally open space with no obstructions in four directions keep the distance between the unit top and wall...

Page 52: ...Fig 2 Fig 1 Fig 2 Installation space requirements of multiple outdoor units To ensure smooth ventilation an open space must be ensured above the unit top and there is no barrier against wind If there is an open space at the front side and left side or right side of the outdoor unit the units should be installed towards the same direction or reverse direction Fig 8 ...

Page 53: ...ill be extended Seasonal wind Return air Return air Front Return air Return air Return air Return air Seasonal wind Front Seasonal wind Correct Protective cover field supplied Return air Front Seasonal wind Seasonal wind Return air Return air Return air Return air Return air Return air Return air Front Front Return air Protective cover field supplied ...

Page 54: ...eeds to be connected to the static pressure ventilating duct the ventilating duct must be reasonably designed The pressure loss caused by the ventilating duct must be calculated In addition a proper type of ventilating duct is necessary To connect he static pressure ventilating duct to the ODU three basic parts are required ODU Canvas Steel plate ventilating duct The ODU must be interconnected wit...

Page 55: ...ir screw driver or screwdriver to unfasten the tapping screws that fixing the top case component 3 and then remove the top case component Take out the grille from the top of the top case component and leave the top case b Put the canvas casing inside out 4 Cover one end of the canvas casing over the unit downward until the canvas end face is aligned with the unit or a bit higher than the top of th...

Page 56: ...eel bar by using tapping screws c Pull up the canvas casing reversely and use the steel bar to press the canvas casing tightly onto the counter flange of the steel plate ventilating duct Use a hand operated electric drill to drill holes and fasten the parts by using tapping screws d Use the tin foil to seal the joints and check the joints reliability NOTE Remove the grille on the top case when con...

Page 57: ...d draft fan is also required The total air input of induced draft fan should be no less than 80 of the total supply air rate 1 Lifting method When carrying the suspended unit pass the ropes under the unit and use the two suspension points each at the front and rear Always lift the unit with ropes attached at four points so that impact is not applied to the unit ...

Page 58: ...cut in your hands Tear plastic packaging bag and scrap it so that children cannot play with it Otherwise plastic packaging bag may suffocate children to death When carrying in Outdoor Unit be sure to support it at four points Carrying in and lifting with 3 point support may make Outdoor Unit unstable resulting in a fall Use 2 belts of at least 3m 26 2ft long Place extra cloth or boards in the loca...

Page 59: ...cement sand and stone for the concrete is 1 2 4 Place 10 reinforced steel bars φ10 mm with a space between of 30 mm Use the mortar to flatten the surface of the foundation Sharp edges must be chamfered When the foundation is built on a concrete floor crushed stones are not required But the foundation surface must be roughened Clear the oil stains crushed stones dirt and water in the reserved bolt ...

Page 60: ...age instead for liquid outlet The tube or pipe may freeze and the liquid may not be drained Be sure to remove the MDF wood support of the bottom side of the outdoor unit Base Pan before fixing the bolt It may cause the unstable state of the outdoor settlement and may cause freezing of the heat exchanger resulting in abnormal operations Be sure to remove the MDF wood support of the bottom side of t...

Page 61: ...S 57 PART 5 PIPING CONNECTION 1 Schematic Diagram of Piping Connection 2 Schematic Diagram of Piping Sequence GMV Q72WM B F U GMV Q96WM B F U GMV Q120WM B F U and GMV Q144WM B1 F U GMV Q72WM B U U GMV Q96WM B U U and GMV Q120WM B U U ...

Page 62: ...anch joint is adopted to connected indoor and outdoor units Connecting method is shown in the figure below Remark Equivalent length of one Y type manifold is about 0 5m 1 3 4feet L10 Length from the first branch to the farthest IDU L11 Length from the first branch to the nearest IDU Equivalent length of branch of IDU is 0 5m 1 3 4feet ...

Page 63: ...fference between the pipe length from the first branch of IDU to the farthest IDU and the pipe length from the first branch of IDU to the nearest IDU L12 L11 40m 131 1 4ft 2 When the maximum length of the main pipe from ODU to the first branch of IDU is 90m 295 1 4ft then adjust the pipe size of the gas pipe and liquid pipe of main pipe according to the following table Outdoor Model Size of connec...

Page 64: ... U Ф34 9 1 3 8 Ф19 05 3 4 No need to enlarge pipe size GMV Q216WM B U U Ф34 9 1 3 8 Ф19 05 3 4 No need to enlarge pipe size GMV Q240WM B U U No need to enlarge pipe size Ф19 05 3 4 Ф34 9 1 3 8 GMV Q264WM B U U No need to enlarge pipe size Φ22 2 7 8 Ф34 9 1 3 8 GMV Q288WM B U U No need to enlarge pipe size Φ22 2 7 8 Ф34 9 1 3 8 GMV Q312WM B U U No need to enlarge pipe size Φ22 2 7 8 Ф34 9 1 3 8 GMV...

Page 65: ...e and piping main pipe 1 Connection sketch map of single module system Connection sketch map of multi module system 2 Select appropriate pipe between outdoor unit and the first indoor branch L as per the pipe size of outdoor unit Pipe size of basic outdoor module is shown as follows Between outdoor unit and the first indoor branch ...

Page 66: ... 5 8 GMV Q96WM B F U Φ22 2 7 8 Φ9 52 3 8 Φ19 05 3 4 GMV Q120WM B F U Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 GMV Q144WM B1 F U Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 GMV Q168WM B1 F U Φ28 6 1 1 8 Φ15 9 5 8 Φ22 2 7 8 GMV Q72WM B U U Φ19 05 3 4 Φ9 52 3 8 Φ15 9 5 8 GMV Q96WM B U U Φ22 2 7 8 Φ9 52 3 8 Φ19 05 3 4 GMV Q120WM B U U Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 Selection of branch Y1 Y2 of outdoor modules Module s ca...

Page 67: ...8 Φ15 9 5 8 Φ22 2 7 8 GMV Q144WM B F U Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 GMV Q168WM B F U Φ28 6 1 1 8 Φ15 9 5 8 Φ22 2 7 8 GMV Q192WM B F U Φ28 6 1 1 8 Φ15 9 5 8 Φ28 6 1 1 8 GMV Q216WM B F U Φ28 6 1 1 8 Φ15 9 5 8 Φ28 6 1 1 8 GMV Q240WM B F U Ф34 9 1 3 8 Φ15 9 5 8 Φ28 6 1 1 8 GMV Q264WM B F U Ф34 9 1 3 8 Ф19 05 3 4 Φ28 6 1 1 8 GMV Q288WM B F U Ф34 9 1 3 8 Ф19 05 3 4 Φ28 6 1 1 8 GMV Q312WM B F U Ф34 9 ...

Page 68: ...2 7 8 Φ9 52 3 8 Φ19 05 3 4 96000 Q 120000 Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 120000 Q 144000 Φ28 6 1 1 8 Φ12 7 1 2 Φ22 2 7 8 144000 Q 168000 Φ28 6 1 1 8 Φ15 9 5 8 Φ22 2 7 8 168000 Q 216000 Φ28 6 1 1 8 Φ15 9 5 8 Φ28 6 1 1 8 216000 Q 240000 Φ34 9 1 3 8 Φ15 9 5 8 Φ28 6 1 1 8 240000 Q 312000 Φ34 9 1 3 8 Φ19 05 3 4 Φ28 6 1 1 8 312000 Q 336000 Φ34 9 1 3 8 Φ19 05 3 4 Φ28 6 1 1 8 336000 C Φ41 3 1 5 8 Φ19 05 ...

Page 69: ...or unit exceeds 48500Btu h When connecting to the indoor unit with capacity of over 48500Btu h it is not allowed to connect with only one branch it must use two branches controlled by the same mainboard for parallel connection Parallel connection Indoor unit Communication connection for mode exchanger Remarks Indoor unit No 1 and No 2 1D1 1D2 Parallel connection can be conducted only as the combin...

Page 70: ...ecorative style Air conditioning pipes should be laid out along the bottom of beam as possible If pipes meet one another at the same elevation process based on the following principles Drain pipes enjoy the highest priority Air ducts and pressure pipes should leave places for gravity pipes Air ducts and small pipes should leave places for major pipes 2 The refrigerant pipe layout must be optimal i...

Page 71: ...kage after the work Please block the pipe knock outs of the front and side panels after installing the pipes Animals or foreign objects may be brought in to damage the cables 1 2 Processing to Refrigerant Pipes 1 2 1 Cut off and Burring Use a special purpose pipe cutter to cut copper pipes instead of using a hacksaw Cut the pipes gently to ensure that the copper pipe does not deform After cutting ...

Page 72: ...e welding point of the pipe should not be at the bending part The distance between the nozzle welding joint and the bending part should be less than 100 mm 3 94inch 1 2 4 Pipe Expanding Pipe expanding is used to provide a welding point for pipe connection Requirements on pipe expanding are as follows 1 All burrs and sundries inside the pipe must be cleared after cut off 2 Before pipe expanding app...

Page 73: ... must be free from grease stains 2 Construction of fixing bolts for devices Ensure sufficient rigidity for the devices Take anticorrosive measures for exposed part of built in fittings If the foundation must be waterproof takes waterproof measures 3 Construction of steel casings Equip a steel casing for all pipes which are led through the wall or floor Pipe welding joints cannot be placed inside t...

Page 74: ...ance between supports hangers and brackets is listed in the table below External Diameter of the Pipe mm inch Φ 19 05 3 4 41 3 1 5 8 Φ 19 05 3 4 Φ 41 3 1 5 8 Distance between Horizontal Pipes mm inch 1000 39 3 8 1500 59 2000 78 3 4 Distance between Vertical Pipes mm inch 1500 59 2000 78 3 4 2500 98 1 2 The pipe led through a wall or beam must be fixed by a support hanger or bracket on both ends at...

Page 75: ...rogen before and during welding and keep aerating for 30s after the welding is finished Equip a pressure regulator valve to the nitrogen cylinder The nitrogen flow is above 4 6 L min pressure of 0 02 to 0 05 Mpa and must be regulated based on the pipe caliber During welding nitrogen filling protection must be conducted otherwise the remaining substance in pipeline will cause blockage or leakage to...

Page 76: ... the manifold and the IDU cannot be less than 500 mm 19 11 16in Unit mm in 5 Fixing of manifolds There must be three fixing point for both horizontal and vertical installation of the Y type manifold Fixing point 1 100 mm 3 94inch on the main inlet manifold from the welding point Fixing point 2 200 mm 7 88inch on the main branched pipe from the welding point Fixing point 3 250 mm 9 84inch on the br...

Page 77: ...nect the pressure regulator valve on the nitrogen cylinder to the liquid pipe in the outdoor pipe system Regulate the nitrogen pressure to about 5 kgf cm and blow nitrogen into the pipe for 1 minute Repeat this operation for three times till the dirt and water are discharged After cleaning the liquid pipe perform the same operation to clean the gas pipe Perform an air tightness test and a vacuum t...

Page 78: ...iameter of the indoor unit and the installation pipe drawing 2 PIPE INSTALLATION FOR THE CONDENSATE WATER SYSTEM 2 1 Pipes All of the selected condensate pipes must be consistent with local laws and regulations 2 2 Requirements on Installation 1 It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to preve...

Page 79: ...pipe to ensure smoother discharge of condensate water 10 After pipes are connected perform a test with some water and another test with full water in the pipe to check whether drainage is smooth and whether water leakage exists in the pipe system 11 Equip a steel casing for all pipes which are led through the wall or floor Pipe bonding joints cannot be placed inside the sleeve The steel casing mus...

Page 80: ...ondensate water pipe installation ensure a distance above 500mm 19 7inch between the pipe and the electric box of the unit for maintenance In a case when the space is not enough the final piping way must be determined by the technical personnel 2 4 Requirements on Installation of Drain Pipes for Different Types of IDUs 1 Drain Pipe Installation for Hidden Air duct type IDU for Air Supply a Ensure ...

Page 81: ... Installation for IDU a Use pipe clips instead of applying glue to connect the hoses provided upon delivery and plastic pipes on the device Connect the other end of the joint to the elbow The height from the suction inlet of the discharge pump is about 200mm 7 7 8in to 500 mm 19 11 16in Ensure a proper inclination degree while connecting to the main drain pipe b The lifting pipe for drainage must ...

Page 82: ...1 Insulation for the Refrigerant Pipe System 3 1 1 Insulation Materials Use closed cell foam insulation materials with flame retardant grade of B1 The heat conductivity is not greater than 0 035 w m k when the average temperature is 0 C 3 1 2 Thickness of the Insulation Layer External Diameter of the Pipe mm 12 7 15 9 inch 1 2 5 8 Thickness of the Insulation Layer mm 15 20 inch 0 59 0 79 Usesunblo...

Page 83: ...ng 3 Insulation is not required for the outdoor part of condensate water pipes 3 3 Insulation for Air Ducts 1 Insulation for air duct components and devices must be performed after the air leakage test is performed or after quality check 2 Use centrifugal glass wool or rubber and plastic materials for insulation or use novel insulation air ducts 3 The insulation layer should be flat and tight with...

Page 84: ...switch Note that generated overcurrent may include some amount of direct current Some installation site may require attachment of an earth leakage breaker If no earth leakage breaker is installed it may cause an electric shock Do not use anything other than breaker and fuse with correct capacity Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire 1 PR...

Page 85: ...ordance with regulations and this installation manual If power supply circuit has a lack of capacity or electric work deficiency it may cause an electric shock or fire 2 The grounding resistance must comply with local rules and regulations Be sure to correct the outdoor unit to earth Do not connect earth line to any gas pipe liquid pipe lightening rod or telephone earth line If earth is incomplete...

Page 86: ...be affection Power cable and communication cable cannot come across and they should be at least 200mm 7 87 inch away from each other otherwise unit may work abnormally 2 2 Requirements on Power Cable Configuration Configure a circuit breaker to each unit for short circuit and overload protection In addition configure a general circuit breaker to both the indoor and ODUs to switch on or switch off ...

Page 87: ...GREE GMV5 HR HEAT RECOVERY UNITS 83 1 External Connection for Individual Units ...

Page 88: ... the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compressor and other parts NOTE...

Page 89: ...lly Running the product in reversed phase may break the compressor and other parts NOTE The maximum number of connected ODUs N and that of connected IDUs n are determined based on the combination form of ODUs For details see the description on unit capacity configuration 2 3 Procedure for Installing the Power Cable 1 Knock off the knockouts used for threading the external power cable fit the threa...

Page 90: ...F system Manual DIP or identification on polarities of the communication power is not required for the IDU Only the function DIP needs to be set for the ODU For details see the description on function setting of the ODU 3 1 Connection of Communication Cable Terminals All connections for communication of GMV5 are fastened by screws ...

Page 91: ... 87 3 2 Connection of Communication Cables The communication bus of indoor and ODUs must be connected in series instead of in star mode The last IDU of the bus shall be connected to a matching resistor placed in the package of the ODU ...

Page 92: ...GREE GMV5 HR HEAT RECOVERY UNITS 88 ...

Page 93: ...n between the IDUs and ODUs The communication cable between the IDUs and ODUs is connected via interface D1 D2 on the terminal block XT2 Connection modes for the single module system and multi module system are shown in the following figures Connection of communication for single module system and single moudle converter system ...

Page 94: ...E GMV5 HR HEAT RECOVERY UNITS 90 Connection of communication for single module system and multi module converter system Connection of communication for multi module system and multi module converter system ...

Page 95: ... board of the ODU The communication cable and power cable must be laid separately to avoid interference The communication cable must be long enough to avoid joints Indoor units must be connected in series The last IDU shall be connected to a matching resistor placed in the package of the ODU 3 3 2 Communication cable connection between the IDU and wired controller Connection modes for the communic...

Page 96: ...N button for 5 seconds the parameter setting interface is displayed and the temperature area displays P00 2 Select code P13 by pressing or Press the MODE button to switch to parameter value setting When the parameter value flickers select code 02 by pressing or Then press the ENTER CANCEL button to finish setting 3 Users can press the ENTER CANCEL button to return to the previous level till parame...

Page 97: ...e air duct type IDU and receiver board When the air duct type IDU needs to be connected to the remote control receiver board connect via DISP1 and DISP2 on the main board of the IDU IDU Type Remote control Receiver Board Connection Type Corresponding Main Board Interface of the IDU Air duct type JS05 Inter board connection 17 cores DISP1 interconnecting with the 8 core interface DISP2 interconnect...

Page 98: ...a small amount of required lubricant on the block nut and pipe terminals and use two wrenches to fix the block nut The ODU pipes cannot be connected when the air tightness test is being performed The test pressure for R410A system is 4 0 MPa Use dry nitrogen as media for the air tightness test Increase the pressure slowly by following the steps below Step 1 Increase the pressure to 0 5 MPa Stop fo...

Page 99: ...tems cannot be the same The ultimate vacuum degree of the vacuum pump should reach 0 1 Mpa The air discharge capacity of the vacuum pump must be greater than 4 L S The precision of the vacuum pump must be greater than 0 02 mmHg The system vacuum pump must be equipped with a check valve 2 2 Procedure and Precautions for Vacuumization and Desiccation 2 2 1 Procedure 1 Before vacuumization ensure tha...

Page 100: ...e completely closed Use vacuum pump to extract air inside indoor unit and connection pipe from the nozzles of liquid valve high pressure gas valve and low pressure gas valve of outdoor unit as shown in follow figure 2 Because air extraction from outdoor unit s liquid valve high pressure gas valve and low pressure gas valve must be performed simultaneously 2 sets of vacuum pump must be used at the ...

Page 101: ...mount B of every module Refrigerant charging amount B of every module kg Pounds Rated Capacity 1000Btu h IDU ODU rated capacity collocation ratio C Quantity of included IDUs N 72 96 120 144 168 50 C 90 N 4 0 0 0 0 1 5 3 3 N 4 0 5 1 1 0 5 1 1 0 5 1 1 1 2 2 3 5 7 7 90 C 105 N 4 1 2 2 1 2 2 1 5 3 3 2 4 4 5 5 12 1 8 N 4 3 5 7 7 2 4 4 3 6 6 3 5 7 7 6 5 14 3 N 8 4 8 8 3 5 7 7 5 5 12 1 6 5 14 3 8 17 6 10...

Page 102: ...sum of outdoor units If all the indoor units are GMV NDX series fresh air indoor units the added refrigerant quantity B for every module is 0 kg Pound 2 METHOD FOR PERFUSING REFRIGERANT Refrigerant perfusion for the VRF system is classified into pre perfusion and perfusion during running 2 1 Refrigerant Pre perfusion Step 1 Connect the high pressure gauge pipe to the detection opening of the liqui...

Page 103: ...o sufficient refrigerant and the calculated quantity of refrigerant is not fulfilled for the system record the current total perfusion quantity m m1 m2 m3 m4 mn 1 mn Quantity of refrigerant to be perfused during running m M m M is the required total quantity If the pre perfusion quantity m reaches the required total quantity for the system turn off the valve of the refrigerant tank immediately to ...

Page 104: ...oning is automatically is completed for the system Step 6 Remove the pressure gauge to finish refrigerant perfusion Because R410A is a mixture of refrigerant therefore it must be charged in a liquid form Otherwise unit will not work stably and effectively Do not expose the R410A refrigerant tank to direct sunlight Otherwise the internal pressure may get too high and cause explosion Pipeline for th...

Page 105: ...stallation and maintenance operations must comply with design requirements of this product and national and local security operation requirements Rule breaking operations are prohibited 2 PRECAUTIONS FOR THE USE OF REFRIGERANTS The GMV5 serial unit is a refrigerating system of R410A working substances Pay attention to the following points The refrigerating system of R410A working substances has a ...

Page 106: ... compressor at the first time when an exception occurs SA4 I M E 1 compressor module emergency operation DIP switch Provides aftersales emergency settings for 1 compressor module 00 It is better not to use the emergency function Replace the compressor at the first time when an exception occurs SA5 FAN E Fan emergency operation DIP switch Provides aftersales emergency settings for fans 00 It is bet...

Page 107: ...dr CC indicates the centralized control address required when different refrigerating systems are controlled in a centralized manner The default factory setting is 00000 If it is not required to use centralized control between multiple refrigerating systems this DIP switch can retain the factory settings without being changed If it is required to use centralized control between multiple refrigerat...

Page 108: ... the master mode system is set to cooling it for the indoor units of other systems cannot be set to heating 3 1 3 Compressor Emergency Operation DIP Switch SA3_COMP E Corresponding to 2 6 compressors the compressor emergency operation DIP switch SA3_COMP E is used for aftersales emergency settings when an exception occurs on a compressor It can shield the operation of the abnormal compressor in a ...

Page 109: ...on the IDU 1 6 compressors are defined from right to left facing the front of the unit 3 1 4 1 Compressor Module Emergency Operation DIP Switch SA4_I M E The 1 compressor module emergency operation DIP switch SA4_I M E is used for aftersales emergency settings when an exception occurs on the 1 compressor module It can shield the operation of the abnormal compressor module in a short time and guara...

Page 110: ...24 hours in compressor emergency operation status Once 24 hours are exceeded the entire unit will be forcibly stopped and the limited operation code Ad is displayed on the IDU The system cannot continually run for more than 48 hours in module emergency operation status Once 48 hours are exceeded the entire unit will be forcibly stopped and the limited operation code Ad is displayed on the IDU 1 6 ...

Page 111: ...ure 0 Pa low static pressure 30 Pa medium static pressure 50 Pa and high static pressure 82 Pa can be set according to the design of air ducts The setting methods are as follows Outdoor Fan Static Pressure Setting DIP Switch SA6_ESP_S DIP1 DIP2 Static Pressure Range 0 0 0 Pa 0in W G 1 0 30 Pa 0 12in W G 0 1 50 Pa 0 2in W G 1 1 82 Pa 0 328in W G The default factory setting is 00 Note that the DIP s...

Page 112: ...ry setting is 00 master unit status Master module must be set correctly otherwise units cannot be started up 3 1 9 DIP Switch Example 1 Explanation of DIP switch positions On the DIP switch ON indicates 0 status and the opposite direction indicates 1 status The position of white lever indicates the position to be set to 2 Example The following takes master unit settings as an example Assume that a...

Page 113: ...n Code Function Name Function Meaning Factory Settings Remark Code Meaning A2 Refrigerant recovery operation Fully or partially recovers refrigerants in a faulty module or IDU pipeline according to the system pressure after automatic startup during maintenance It can only be set A6 Unit cooling heatin g function Sets the unit to cooling heating single cooling single heating or air supply mode for ...

Page 114: ...Description of Functions 1 A2 Refrigerant recovery operation This function partially recovers refrigerants in a faulty module or IDU pipeline during unit maintenance The refrigerant recovery volume of each basic module is as follows Model of Basic Module Maximum Refrigerant Recovery Volume GMV Q72WM B F U 9 6kg 21 16LBS GMV Q96WM B F U 11 2kg 24 69LBS GMV Q120WM B F U 11 7kg 25 79LBS GMV Q72WM B U...

Page 115: ...e This function is used when users require lower environment noises including nighttime automatic silent mode and forcible silent mode For the nighttime automatic silent mode the system automatically judges the highest daytime environment temperature and then starts silent operations in a certain interval to guarantee nighttime low noise operations The nighttime automatic silent mode falls into ni...

Page 116: ... then automatically runs based on system conditions 7 n4 Conservation control 2 The highest capacity output limitation is set when users require forcibly limiting the system power consumption The setting scope is as follows Code Highest Output Capacity 10 100 factory settings 09 90 08 80 Note The cooling or heating effect may fall off after the capacity limitation is set 8 n5 Indoor unit project n...

Page 117: ...ion Code Display Mode Current Progress Display Mode Current Status Display Mode A7 Blinking 00 Blinking 00 Blinking A6 Blinking 00 Blinking 00 Blinking A2 Blinking 00 Blinking 00 Blinking A8 Blinking 00 Blinking 00 Blinking n0 Blinking 01 Blinking 00 Blinking n3 Blinking 00 Blinking 00 Blinking n4 Blinking 00 Blinking 00 Blinking n5 Blinking 00 Blinking 00 Blinking After selecting the functions to...

Page 118: ...09 Blinking OC Blinking A7 On 10 Blinking OC Blinking A7 On 11 Blinking OC Blinking A7 On 12 Blinking OC Blinking Step 3 Press SW7 to confirm selecting the mode The master unit is displayed as follows LED1 LED2 LED3 Function Code Display Mode Silent Mode Code Display Mode Current Status Display Mode A7 On 00 On OC On A7 On 01 On OC On A7 On 02 On OC On A7 On 03 On OC On A7 On 04 On OC On A7 On 05 ...

Page 119: ...On nH On A6 On nA On nA On A6 On nF On nF On On the master unit press SW6 to return to the upper level press SW6 in setting status to return to the upper level press SW6 after settings are completed to restore the normal operating status of the unit If no button operations are performed on the master unit for five minutes the function setting automatically quits and the unit restores the current s...

Page 120: ...s after refrigerant recovery Basic module refrigerant recovery Step 3 Set the basic module requiring refrigerant recovery to module emergency operation status and close the liquid tube stop valve of the emergency status module Select 02 as in step 2 to enter basic module refrigerant recovery The display is as follows LED1 LED2 LED3 Function Code Display Mode Current Progress Display Mode Current S...

Page 121: ...D2 LED3 Function Code Display Mode Code Display Mode Current Status Display Mode n0 On 01 Blinking OC Blinking Step 2 Select a corresponding mode by pressing SW1 UP or SW2 DOWN LED1 LED2 LED3 Function Code Display Mode Code Display Mode Current Status Display Mode n0 On 01 Blinking OC Blinking n0 On 02 Blinking OC Blinking Step 3 Press SW7 to confirm selecting the mode The master unit is displayed...

Page 122: ...Blinking OC Blinking n4 On 08 Blinking OC Blinking Step 3 Press SW7 to confirm selecting the mode The master module is displayed as follows LED1 LED2 LED3 Function Code Display Mode Highest Output Capacity Display Mode Current Status Display Mode n4 On 10 On OC On n4 On 09 On OC On n4 On 08 On OC On If no button operations are performed on the master unit for five minutes the function setting auto...

Page 123: ... the master unit The master unit is displayed as follows Other modules are displayed in normal status LED1 LED2 LED3 Function Code Display Mode Current Progress Mode Display Mode Current Status Display Mode n8 On 00 On 00 On Regardless of the current display status of wired controllers or display panels of all IDUs the current display status is all switched to the IDU project number However it doe...

Page 124: ...r driver module J9 Over low pressure ratio protection PF Charge circuit failure of inverter compressor driver J8 Over high pressure ratio protection HL DC bus line over low voltage protection for inverter outdoor fan driver J7 Gas mixing protection of 4 way valve HH DC bus line over high voltage protection for inverter outdoor fan driver E5 High temperature protection of compressor 1 H6 Inverter o...

Page 125: ...irmation status for parameter query The display is as follows LED1 LED2 LED3 Function Code Display Mode Module Address Display Mode Current Status Display Mode n7 On 01 Blinking 00 Blinking n7 On 02 Blinking 00 Blinking n7 On 03 Blinking 00 Blinking n7 On 04 Blinking 00 Blinking Select a module for parameter query by pressing SW1 UP or SW2 DOWN and then press SW7 The display is as follows LED1 LED...

Page 126: ... of outdoor fan 2 C 25 Outdoor unit heating EXV1 PLS 26 Outdoor unit heating EXV2 PLS 27 Subcooler EXV PLS 28 Defrosting temperature C 29 Liquid extracting temperature of subcooler C 30 Outlet temperature of accumulator C 31 Oil return temperature C This parameter is invalid for the GMV5 series 32 Inlet tube temperature of condenser C This parameter is invalid for the GMV5 series 33 Outlet tempera...

Page 127: ...ode and Pc indicates the controller bar code After confirming the module select a bar code sequence by pressing SW1 or SW2 The display sequence is as follows Entire unit bar code bits 1 13 and controller bar code bits 1 13 that is entire unit bar code header entire unit bar code bits 1 6 entire unit bar code bits 7 12 entire unit bar code bit 13 controller bar code header controller bar code bits ...

Page 128: ...sic Operations Basic Operations Operation Method Remark Starting engineering commissioning Press and hold SW7 on the master unit for more than five seconds Selecting no wired controller commissioning mode Press SW4 and SW5 simultaneously in any commissioning progress after the unit enters the commissioning status In this mode the system does not detect the communication status between the IDU and ...

Page 129: ...e incorrect unit will run abnormal and compressor may even be damaged PART 2 COMMISSIONING PROCESS NOTICE It is forbidden to directly connect the compressor with power supply and forcibly power it on during commissioning and maintenance Engineering commissioning operations must be performed on the GMV5 serial unit Otherwise the unit cannot properly run Before commissioning is completed the main bo...

Page 130: ... units pre commissioning scheme determination meeting minutes commissioning personnel record tables commissioning system appearance check record tables commissioning data record tables and commissioning reports See attached tables for file formats 3 ENGINEERING COMMISSIONING PROCEDURES 3 1 Pre commissioning Preparations 3 1 1 Overall Commissioning Plan Before commissioning the person in charge sho...

Page 131: ... made for providing an analysis basis during refrigerating system testing Refrigerant pipes and condensing drainage pipes should not be exposed If any pipe is exposed an immediate amendment is required to avoid serious loss 3 2 2 Refrigerating System Check 1 Before commissioning make sure that the stop valve of each module reaches the maximum opening degree Check whether there is any refrigerator ...

Page 132: ...ironment 1 The air conditioning unit can neither share the same power supply system with the equipment containing variable frequency drives nor reside near the equipment generating high electromagnetic interference Otherwise the air conditioning unit may fail to properly work due to interference If this case exists records should be made In the case of serious influence the air conditioning unit m...

Page 133: ...and For a large scale unit power cable terminals of the patch panel and cable terminals connected with connectors must be tightened with a sleeve spanner or screwdriver and tightened once more after two months of normal operation Auxiliary contacts of AC connectors cannot be removed because they have been debugged upon factory departure 6 Check the input power 1 Power consistency check Measure the...

Page 134: ...Spot Check Item Qualified 1 Is the engineering design diagram complete 2 Does the construction comply with the design diagram 3 Is the rated capacity of the IDU ODU of a single refrigerating system within 50 135 4 Is the number of connected IDUs in a single refrigerating system within 80 5 Is the access capacity of a fresh air unit within 30 6 Does the difference of level between IDUs and ODUs com...

Page 135: ...ith an air exhaust vent 30 Is MASTER stuck to the wired controller or panel of the master IDU 31 Does appending refrigerants to the system comply with requirements 32 Does the ODU run with static pressure Has a static pressure value been set 33 Has the ODU been preheated for more than eight hours before commissioning 3 3 Commissioning Operation 3 3 1 Precautions 1 Before starting commissioning mak...

Page 136: ...it setting detection db On 01 On A0 On The system is in non commissioning status db On 01 On CC On The system does not set any master unit and a master unit should be set db On 01 On CF On The system sets more than two master units and a master unit should be set again db On 01 On OC On The system successfully sets a master unit and automatically enters the next step 02_Unit address assignment db ...

Page 137: ...e next step 06_Internal component detection for basic modules db On 06 On Corresponding fault code On The system detects component failure of ODU db On 06 On OC On The system detects that no ODU component fails and automatically enters the next step 07_Component detection for IDU db On 07 On XXXX Corresponding fault code On The system detects component failure of IDU XXXX indicates the project num...

Page 138: ...on db On 12 On AP Blinking The system waits for a unit commissioning startup command db On 12 On AE On The unit is set to manually calculated refrigerant perfusion commissioning operation status 13_ No meaning 14_ No meaning 15_Cooling operation by manual perfusion db On 15 On AC On The system is in cooling mode commissioning operation the system automatically selects the commissioning operation m...

Page 139: ... completion status 01 04 On OF On OF On The unit has completed commissioning and in standby status LED1 displays the module address LED2 and LED3 display OF NOTE In commissioning status press and hold SW3 and SW4 simultaneously for more than five seconds to enter the no wired controller commissioning mode In this mode the system does not detect the communication status between the wired controller...

Page 140: ...s of all modules of ODU and the wired controller of each IDU displays A0 it indicates that the unit is in non commissioning status Step 6 Find the module with its address being 01 which is the master unit On the master unit press and hold SW7 for more than five seconds to enter unit commissioning Step 7 Wait for the unit to automatically operate commissioning steps 01 and 02 Exception 1 If the mas...

Page 141: ...displayed quantity is consistent with the number of actually connected modules press SW7 on the master unit to confirm The main board is displayed as follows and the unit automatically enters commissioning step 04 Progress Commissioning Code Progress Code Status Code LED1 LED2 LED3 Code Display Status Code Display Status Code Display Status 03_Module quantity confirmation db On 03 On OC On If the ...

Page 142: ...ommissioning Code Progress Code Status Code Meaning LED1 LED2 LED3 Code Display Status Code Display Status Code Display Status 05_Internal communication detection db On 05 On OC On The system completes detection and automatically enters the next step If an exception is detected the unit retains the current status and waits for manual troubleshooting Corresponding faults include Progress Commission...

Page 143: ...tep 11 Unit commissioning step 07 is component detection for IDU If no exception is detected the main board is displayed as follows and the unit automatically enters the next commissioning step Progress Commissioning Code Progress Code Status Code Meaning LED1 LED2 LED3 Code Display Status Code Display Status Code Display Status 07_Component detection for IDU db On 07 On OC On The system detects t...

Page 144: ...ing period is less than eight hours Before starting commissioning the outdoor unit must be power on for more than 8 hours Otherwise compressor may be damaged During daily operation please keep the outdoor unit power on at any time If unit is power off for more than 24 hours it must be preheated for at least 8 hours before operation Step 13 Unit commissioning step 09 is pre startup refrigerant conf...

Page 145: ...ODU valves are completely opened After confirming that all valves are completely opened press SW7 to enter the next commissioning step If it is detected that the unit valve status is normal the main board is displayed as follows and the unit automatically enters the next commissioning step Progress Commissioning Code Progress Code Status Code Meaning LED1 LED2 LED3 Code Display Status Code Display...

Page 146: ... follows Progress Commissioning Code Progress Code Status Code Meaning LED1 LED2 LED3 Code Display Status Code Display Status Code Display Status 15_Cooling commissioning operation db On 15 On AC On The system is in cooling mode commissioning operation the system automatically selects the commissioning operation mode without needing manual settings db On 15 On Corresponding fault code On A fault o...

Page 147: ...8 is displayed after three seconds For example if a U8 fault occurs on IDU 100 LED3 will circularly display 01 00 two seconds later and U8 two seconds later Step 18 If no exception occurs when the unit continuously operates for 40 minutes the system automatically confirms commissioning completion stops the entire unit and restores the standby status The main board is displayed as follows Progress ...

Page 148: ...e setting method see the Outdoor Fan Static Pressure Setting DIP Switch SA6_ESP_S section Step 4 In power off status of ODU set one module of ODU to master unit For details about the setting method see the Master Unit Setting DIP Switch SA8_MASTER S section Step 5 Power on all outdoor and IDUs In this case all modules of ODU display that the unit is in non commissioning status Step 6 Switch the co...

Page 149: ...passed on the phase For the phase with OK displayed a manual confirmation is required for entering the next commissioning step Click to display relevant information detected on this phase which provides references for selection Click Close to close the information the number of commissioning units is displayed in 3 Confirm ODU Basic Module NO and 4 Confirm IDU NO the preheating period is displayed...

Page 150: ...xt step if no OK exists or click OK to enter the next step Click to display relevant information detected on this phase which provides references for troubleshooting Click Close to close the information During commissioning click Stop to stop commissioning and then click Start to continue commissioning till commissioning ends Back and Skip are provided in 10 ODU Valves Check Before ...

Page 151: ...for step 10 If a U6 fault valve exception occurs in step 10 users can click Skip to skip the fault For other faults Skip is unavailable Commissioning steps 11 13 and 14 are reserved Steps 13 14 15 and 16 are parallel steps one of the four steps will be selected according to the actual unit At last engineering commissioning is completed when is displayed on Project Debug ...

Page 152: ...Portable Commissioning Tool Step 1 Connect the Portable Commissioning Tool Please refer to the operation manual of Portable Commissioning Tool for the connection method Step 2 Setting DIP of ODU address You must set this DIP in main control ODU The setting code SA8 of main control unit shall be set to 00 Otherwise it is invalid Step 3 On the home page press Unit Debug to enter into the page of eng...

Page 153: ... there s malfunction on is displayed when the unit is displayed Warning After finishing operating this product the wiring of air conditioner must be resumed Otherwise it may affect the actual operation of user 3 3 4 Operations after Commissioning Sort and save data Make detailed records of exceptions and troubleshooting methods during commissioning for later maintenance and query At last make a co...

Page 154: ...mperature and system operation capacity the system high pressure value is 10 40 C 50 104 F higher than the environment temperature The higher the environment temperature the less the temperature difference When the system runs for cooling with the environment temperature being 25 35 C 77 95 F the system high pressure value is 44 53 C 111 127 F When the system runs for heating with the environment ...

Page 155: ... lower than the outlet tube temperature of the same IDU in heating mode 11 Outlet tube temperature of indoor heat exchanger C F 12 Opening degree of indoor electronic expansion valves PLS The opening degree automatically changes between 0 and 2000 PLS or between 0 and 480 PLS 13 Communication parameter Communication data The commissioning software shows that the number of IDUs ODUs is consistent w...

Page 156: ... Malfunction of indoor CO2 sensor LL Malfunction of water flow switch dF Malfunction of upper water temperature sensor of water tank LE Rotation speed of EC DC water pump is abnormal dJ Malfunction of backwater temperature sensor LF Malfunction of shunt valve setting dP Malfunction of inlet tube temperature sensor of generator LJ Setting of functional DIP switch code is wrong dU Malfunction of dra...

Page 157: ...oil return temperature sensor 1 P1 Driving board of compressor operates abnormally bH Clock of system is abnormal P2 Voltage protection of driving board power of compressor bE Malfunction of inlet tube temperature sensor of condenser P3 Reset protection of driving module of compressor bF Malfunction of outlet tube temperature sensor of condenser P4 Drive PFC protection of compressor bJ High pressu...

Page 158: ...tting of ODU s capacity code jumper cap C7 Abnormal communication of converter U3 Power supply phase sequence protection C8 Emergency status of compressor U4 Refrigerant lacking protection C9 Emergency status of fan U5 Wrong address for driving board of compressor CA Emergency status of module U6 Alarm because valve is abnormal CH Rated capacity is too high U8 Malfunction of pipeline for IDU CC No...

Page 159: ... nE Negative code AP Debugging confirmation when starting up the unit nF Fan model AU Long distance emergency stop nJ High temperature prevention when heating Ab Emergency stop of operation nU Eliminate the long distance shielding command of IDU Ad Limit operation nb Bar code inquiry An Child lock status nn Length modification of connection pipe of ODU Note Previous faults in the system can be que...

Page 160: ...ING 1 How to locate a faulty IDU promptly Use the IDU project number enquiry and faulty IDU locating function to locate a faulty IDU or wired controller s corresponding IDU as follows when multiple IDUs are running in one place C01 Indoor project number and fault enquiry ...

Page 161: ...oor capacity code setting 1 The capacity code is wrong 2 The dial component is faulty 1 Modify the capacity code setting 2 Replace the main board U3 Power phase sequence protection 1 The three phase power cable is not connected correctly 2 The main board s detection circuit is faulty 1 Check connection of the power cable 2 Replace the control board UL Wrong emergency operation dial code 1 The dial...

Page 162: ...1 Project numbers conflict with each other 1 Change conflicting project numbers and ensure that no IDU s project number is repeated C6 Outdoor unit number inconsistency warning 1 Communication cables between ODUs are loose 2 Communication cables between ODUs are broken 3 Communication cables between ODUs are poorly connected 4 The control board is faulty 1 If the communication cable is loose recon...

Page 163: ...ject number conflict When multiple systems are controlled in a centralized way if two or more IDUs share the same project number the engineer number conflict occurs In that case IDUs cannot be switched to varied modes or be turned on or off The whole device cannot be started before the conflict is solved The commissioning software will show the following page Figure 1 ...

Page 164: ...bers in multiple systems Choose Setting Parameter Settings as shown in Figure 2 Figure 2 If project commissioning is finished and the IDU where the conflict occurs needs to be set separately Click Project Number Conflict as shown in Figure 3 The pop up box comprises two parts conflicting IDU box showing the IDU s project number system number and time setting box showing the IDU project number sett...

Page 165: ...licting IDU box shown in Figure 3 and click Set in the setting box Choose a value in the pop up box shown in Figure 4 and click Set Figure 4 If the conflict is solved the system will return to the normal status and IDUs can be operated as shown in Figure 5 Figure 5 ...

Page 166: ...on the communicator and remote controller When the project number conflict occurs you can use the communicator or remote controller to revise project numbers and solve the conflict See the manual of the communicator or remote controller for the method Setting of auto project number deviation on ODU s main board recommended 1 You can set auto IDU project number deviation via the ODU s main board as...

Page 167: ...applies to conflicting IDUs and does only affect other IDUs project numbers In case of many conflicting IDUs auto deviation is recommended This method is faster but may change project numbers of normal IDUs This method applies for the first commissioning after installation Fault code Fault Possible reasons Solution C2 Communication failure between main control board and inverter compressor drive 1...

Page 168: ...ssor drive board is faulty 1 Replace the compressor drive board PF Compressor drive recharging circuit fault 1 Is the voltage of the input power cable of the whole system lower than 200 V 2 The compressor drive board is faulty 1 Elevate the voltage of the input power cable to the required range 2 Replace the compressor drive board PJ Inverter compressor starting failure 1 The drive board is damage...

Page 169: ... The fan drive board is faulty 1 Replace the fan drive board HJ Variable frequency fan starting failure 1 The drive board is damaged 2 The fan s UVW cable is not connected properly 3 The fan is damaged 1 Replace the fan drive board 2 Reconnect the fan s UVW cable 3 Replace the fan 2 1 2 System faults 1 System exhaust temperature exception Fault code Fault Possible reasons Solution Primary reason S...

Page 170: ...erature protection 3 The system pipeline is blocked The system s exhaust temperature rises and the low pressure is too low compared with the reference value 3 1 The fluid pipe is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large or part of the pipe is frosting Replace and solder the pipe 3 2 The gas pipe is blocked Replace ...

Page 171: ...emperature required for safe operation The outdoor ambient temperature exceeds 50 C 122 F Measure the ambient temperature It is a normal phenomenon caused by the protection function Fault code Fault Possible reasons Solution Primary reason Secondary reason Tertiary reason Description Confirmation method Description Confirmation method Description Confirmation method E2 Low exhaust temperature prot...

Page 172: ...3 2 The body of the valve is faulty Replace the body of the electronic expansion valve Fault code Fault Possible reasons Solution Primary reason Secondary reason Tertiary reason Description Confirmation method Description Confirmation method Description Confirmation method E2 Low exhaust temperature protection 2 The IDU s electronic expansion valve is not working properly When the system is workin...

Page 173: ... Other reasons Incorrect quantity of refrigerant is injected Check the necessary amount of refrigerant and discharge the unneeded refrigerant slowly via the stop valve of the fluid pipe 2 Pressure exception Fault code Fault Possible reasons Solution Primary reason Secondary reason Tertiary reason Description Confirmation method Description Confirmation method Description Confirmation method E1 Hig...

Page 174: ... pipe is frosting 2 4 1 The block is caused by solder Cut off the pipe and check it Replace and solder the pipe 2 4 2 The pipeline is blocked by impurities Replace and solder the pipe Fault code Fault Possible reasons Solution Primary reason Secondary reason Tertiary reason Description Confirmation method Description Confirmation method Description Confirmation method E1 High pressure protection 3...

Page 175: ... pressure and low pressure sensors are connected reversely Connect the stop valve of the module fluid pipe and gas pipe to the high and low pressure gauges and transform the readings into corresponding temperatures Compare them to the high and low temperatures tested by the system If the difference is larger than 5 C 9 F it is exceptional Reconnect the high and low pressure sensors 5 The high pres...

Page 176: ...y Manual check 6 2 1 The fan motor is not properly connected with the control board of the motor with the power cable Manual check Reconnect it properly 6 2 2 The fan motor is not properly connected with the control board of the motor with the signal feedback cable Manual check Reconnect it properly 6 2 3 The control board of the fan s motor is damaged Manual check Replace the control board of the...

Page 177: ...line is blocked The system s exhaust pressure rises and the low pressure is too low compared with the reference value 2 1 The system gas pipeline is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large 2 1 1 The block is caused by solder Cut off the pipe and check it Replace and solder the pipe 2 1 2 The pipeline is blocked by...

Page 178: ...is lower than 25 C 13 F in the heating mode Measure the outdoor ambient temperature It is a normal phenomeno n caused by the protection function 4 The pressure sensor is faulty 4 1 The low pressure sensor is faulty Stop the whole system Test the system s balance pressure 20 minutes later and convert the pressure into the corresponding saturation temperature Compare it with the outdoor ambient temp...

Page 179: ...rature s tested by the system If the difference is larger than 5 C 9 F it is exceptional Reconnect the high and low pressure sensors 5 The fan is not working properly A The IDU s fan does not work in the cooling mode B The ODU s fan does not work in the heating mode 5 1 The IDU s fan is faulty Manual check 6 1 1 The power cable connecting the motor and main board is loose Manual check Reconnect th...

Page 180: ... board of the motor with the communicati on feedback cable Manual check Reconnect it properly 6 2 3 The control board of the fan s motor is damaged Manual check Replace the control board of the motor 6 2 4 The main board of the fan s motor is damaged Other reasons Replace the motor 6 Not enough refrigerant Other reasons Incorrect quantity of refrigerant is injected Check the necessary amount of re...

Page 181: ...f refrigerant to feel the temperature difference The difference is large 2 1 1 The block is caused by solder Cut off the pipe and check it Replace and solder the pipe 2 1 2 The pipeline is blocked by impurities Replace and solder the pipe 2 2 The fluid pipe is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large or part of the...

Page 182: ... in the cooling mode is higher than 40 C 104 F Measure the outdoor ambient temperature It is a normal phenomenon 3 3 The ambient temperatur e of the IDU that works in the heating mode is lower than 12 C 54 F Measure the outdoor ambient temperature 3 3 1 The system has worked for less than 2 hours It is a normal phenomenon 3 3 2 An improper system is selected Choose another system with larger power...

Page 183: ...king in the cooling mode and the electronic expansion valve is opened to 2000PLS the exhaust temperature of the IDU s coil is more than 15 C higher than the intake temperature when the IDU is working in the heating mode and the electronic expansion valve is opened to 2000PLS the intake temperature of the IDU s coil is 2 1 The controlling of electronic expansion valve by main board of indoor unit i...

Page 184: ...is large or part of the pipe is frosting Replace and solder the pipe 3 2 The air pipe is blocked Replace and solder the pipe 3 3 The pipe that connects the IDU is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large or part of the pipe is frosting 3 3 1 The block is caused by solder Cut off the pipe to see if it is blocked Rep...

Page 185: ...nt temperature It is a normal phenomenon caused by the protection function E2 Low exhaust temperature protection 1 The ODU s electronic expansion valve is not working properly When the system is working in the heating mode and the ODU s electronic expansion valve is opened to 100PLS the intake temperature of the corresponding liquid air separator is more than 1 C lower than the 1 2 The controlling...

Page 186: ...he intake pipe s temperature and the difference between the compressor s exhaust temperature or cover temperature and the high pressure temperature is smaller than 10 C 2 1 The controlling of electronic expansion valve by main board of indoor unit is abnormal Reset the IDU Listen to the sound and touch the tube to see if the electronic expansion valve is reset If it is set it is normal Otherwise i...

Page 187: ...locked The system s exhaust pressure rises and the low pressure is too low compared with the reference value 2 1 The system air pipeline is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large 2 1 1 The block is caused by solder Cut off the pipe and check it Replace and solder the pipe 2 1 2 The pipeline is blocked by impuriti...

Page 188: ...omenon caused by the protection function 4 The pressure sensor is faulty 4 1 The high pressure sensor is faulty Stop the whole system Test the system s balance pressure 20 minutes later and convert the pressure into the corresponding saturation temperature Compare it with the outdoor ambient temperature If the difference is larger than 5 C it is exceptional Replace the high pressure sensor 4 2 The...

Page 189: ...he pressure switch 6 The fan is not working properly A The ODU s fan does not work in the cooling mode B The IDU s motor does not work in the heating mode 6 1 The IDU s fan is faulty Manual check 6 1 1 The power cable connecting the motor and main board is loose Manual check Reconnect the motor with the power cable 6 1 2 The electric capacity is not connected or is damaged Manual check Connect or ...

Page 190: ...ect quantity of refrigerant is injected Check the necessary amount of refrigerant and discharge unneeded refrigerant slowly via the stop valve of the fluid pipe JL Low high pressure protection 1 The ambient temperature exceeds the range 1 1 The outdoor ambient temperature in the cooling mode is lower than 10 C Measure the outdoor ambient temperature It is a normal phenomenon caused by the protecti...

Page 191: ...e and check it Replace and solder the pipe 2 1 2 The pipeline is blocked by impurities Replace and solder the pipe 2 2 The fluid pipe is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large or part of the pipe is frosting Replace and solder the pipe 2 4 The pipe that connects the IDU is blocked Touch the pipe along the flowing...

Page 192: ...sure and low pressure sensors are connected reversely Connect the stop valves of the module high and low pressure air pipes to the high and low pressure gauges and transform the readings into corresponding temperatures Compare them to the high and low temperature s tested by the system If the difference is larger than 5 C it is exceptional Reconnect the high and low pressure sensors 6 The fan is n...

Page 193: ...f the motor Manual check Reconnect it properly 6 2 2 The fan motor is not properly connected with the control board of the motor with the communicati on feedback cable Manual check Reconnect it properly 6 2 3 The control board of the fan s motor is damaged Manual check Replace the control board of the motor 6 2 4 The main board of the fan s motor is damaged Other reasons Replace the motor 7 Not en...

Page 194: ...on of refrigerant to feel the temperature difference The difference is large 2 1 1 The block is caused by solder Cut off the pipe and check it Replace and solder the pipe 2 1 2 The pipeline is blocked by impurities Replace and solder the pipe 2 2 The fluid pipe is blocked Touch the pipe along the flowing direction of refrigerant to feel the temperature difference The difference is large or part of...

Page 195: ...ent temperature 3 3 1 The system has worked for less than 2 hours It is a normal phenomenon 3 3 2 An improper system is selected Choose another system with larger power 3 4 The outdoor ambient temperatur e in the heating mode is lower than 7 C Measure the outdoor ambient temperature It is a normal phenomenon 4 Poor airflow distribution design 4 1 The air intake and return inlet of the ODU are too ...

Page 196: ...e engineering debugging is not completed the unit will display this code at this time the unit cannot startup for operation Possible reason Troubleshooting status code no troubleshooting 2 2 4 2 A2 Refrigerant recovery operation status Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method This code is status code which means t...

Page 197: ...ch means the system has entered into cooling and heating function setting status At this time cooling heating mode nA cooling only mode nC heating only mode nH and supply air mode nF are selectable Possible reason Troubleshooting status code no troubleshooting 2 2 4 6 A7 Quiet mode setting status Error display ODU mainboard will display Error judgment condition and method This code is status code ...

Page 198: ... condition and method This code is status code which means the system has entered into supply air mode at this time all IDUs can only be operated under supply air mode Possible reason Troubleshooting status code no troubleshooting 2 2 4 11 AE Manual refrigerant charging status Error display ODU mainboard will display Error judgment condition and method This code is status code which means the syst...

Page 199: ...cannot start up the unit for operation Possible reason Troubleshooting status code no troubleshooting 2 2 4 15 Ab Emergency stop operation status Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method This code is status code which means ODU mainboard has received the external emergency stop signal unless the status is removed ...

Page 200: ...emperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 18 b2 Defrost temperature sensor 1 error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge...

Page 201: ...dition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between temperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abnormal Troubl...

Page 202: ...perature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 21 b5 Malfunction of gas temperature sensor of sub cooler Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting ci...

Page 203: ...Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between temperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit ...

Page 204: ...ct between temperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 24 b8 Malfunction of outdoor humidity sensor Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting c...

Page 205: ...udgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between temperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abno...

Page 206: ... report the error Possible reason Poor contact between temperature sensor and terminal in mainboard interface Temperature sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 27 C0 IDU and ODU IDU wired controller communication error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method If no communication be...

Page 207: ... control board IDU light board and wired controller all report C0 please check the network between ODU and IDU and the network between IDU and wired controller if only wired controller reports C0 please check the network between IDU and wired controller and the wired controller quantity and address settings 2 2 4 28 C2 main control and inverter compressor drive communication error Error display OD...

Page 208: ... drive board is abnormal Mainboard is abnormal Troubleshooting 2 2 4 29 C3 main control and inverter fan drive communication error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method If ODU hasn t received inverter fan drive board data in continuous 30s report the error Possible reason Communication wire between ODU mainboar...

Page 209: ...DU wired controller and IDU receive light board will display Error judgment condition and method If ODU hasn t received inverter fan drive board data in continuous 30s report the error Possible reason Communication wire is in poor connection Power supply of IDU is cut off IDU mainboard is abnormal Troubleshooting ...

Page 210: ...that is ever used in other system Troubleshooting You can reset the conflict IDU project codes through the following ways Reset project codes through debugging software Reset project codes through wired controller Reset project codes through debugging remote controller Reset this mainboard through the reset button on IDU mainboard and let the system reallocate the code 2 2 4 32 C6 Outdoor unit qua...

Page 211: ...us of fan Error display ODU mainboard will display Error judgment condition and method If any fan in the module is set with emergency operation status the mainboard will display C9 to indicate that the system has entered compressor emergency operation status during operation Possible reason Troubleshooting status code no troubleshooting 2 2 4 35 CA Emergency operation status of module Error displa...

Page 212: ... capacity of online IDUs and ODUs When the ratio between total rated capacity of IDUs and total rated capacity of ODUs is less than 0 5 the unit will limit unit on and report this error Possible reason Total rated capacity of IDUs is less than 0 5 time of total rated capacity of ODUs Troubleshooting Rearrange project design to increase IDU capacity or decrease ODU capacity 2 2 4 38 CC No master co...

Page 213: ...trolling unit to judge if it is master controlling unit When multiple master controlling units are detected in the communication network of multiple modules system it will report this error Possible reason DIP switch of master controlling unit is abnormal there are multiple master controlling units in the network Detecting circuit is abnormal Troubleshooting 2 2 4 40 CJ System address code conflic...

Page 214: ...r systems shall be set in different codes DIP switch is abnormal or mainboard is abnormal Troubleshooting 2 2 4 41 CP Multiple master wired controller error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method There are two or more wired controllers in one HBS network are set as the master wired controller Possible reason Whe...

Page 215: ...s 4 IDU quantity in the system exceeds 80 After replacing the IDU and ODU mainboard ODU is not de energized Troubleshooting 2 2 4 43 d1 Indoor circuit board error Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Check if the reading of address chip and memory chip of IDU mainboard is normal If the data of address chip and memory chip c...

Page 216: ...r and terminal in mainboard interface Ambient temperature sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 45 d4 Inlet pipe temperature sensor error Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD valu...

Page 217: ... method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value If the sampling AD value exceeds upper limit and lower limit in 5 seconds continuously report the error Possible reason Poor contact between outlet pipe temperature sensor and terminal in mainboard interface Outlet pipe temperature sensor is abnormal Detecting circuit is a...

Page 218: ...per limit and lower limit in 5 seconds continuously report the error Possible reason Poor contact between humidity sensor and terminal in mainboard interface Humidity sensor is abnormal Detecting circuit is abnormal Troubleshooting 2 2 4 48 d9 Jumper cap error Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Possible reason If jumper c...

Page 219: ... chip and IP address if address chip cannot be read IDU IP is 0 or IP is in conflict report the error Possible reason ODU allocated address is wrong IDU treatment is wrong Address chip is abnormal Troubleshooting 2 2 4 50 dH wired controller circuit board error Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Wired controller IIC commu...

Page 220: ... the error Possible reason Capacity DIP switch is set to the wrong position Detecting circuit is abnormal Troubleshooting 2 2 4 52 dL Air outlet temperature sensor error Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value...

Page 221: ...DU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Judge through high pressure sensor detecting system real time high pressure or action of high pressure switch If the sensor detects that high pressure is bigger than 65 C or high pressure switch is cut off it is judged that high pressure is too high and the system stops operation for prot...

Page 222: ...HR HEAT RECOVERY UNITS 218 System pipeline is blocked Troubleshooting 2 2 4 55 E2 Compressor low discharge temperature protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 223: ...fference between discharge temperature and high pressure value is lower than 10 C the unit will stop for protection Possible reason Exhaust temperature sensor failure In cooling mode The IDU s electronic expansion valve is not working properly In heating mode The ODU s electronic expansion valve is not working properly Too much refrigerant Troubleshooting ...

Page 224: ...compressor suction pressure through low pressure sensor When pressure value is lower than 41 C the unit will stop for protection Possible reason Cut off valve of ODU is not fully opened Low pressure sensor is abnormal Outdoor or indoor fan is not working properly IDU filter or air duct is blocked cooling mode Ambient temperature is too low Refrigerant charging amount is insufficient System pipelin...

Page 225: ... if electronic expansion valves of indoor and outdoor units work properly Check if the return air filter of the indoor unit is dirty or blocked The pipeline is blocked Clean the filter Replace electronic expansion valves or main board Set the indoor unit s rating capacity in the permitted range Check output signals of the swing motor and main board Replace the swing motor or main board Check the i...

Page 226: ...through compressor discharge pipe and shell top temperature sensor If the tested temperature value is higher than 118 C the unit will stop for protection Possible reason Cut off valve of ODU is not fully opened Electronic expansion valve is abnormal Outdoor or indoor fan is not working properly IDU filter or air duct is blocked cooling mode Ambient temperature exceeds allowable operation range Ref...

Page 227: ...GREE GMV5 HR HEAT RECOVERY UNITS 223 Troubleshooting ...

Page 228: ...abnormal Troubleshooting 2 2 4 59 F1 High pressure sensor error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Sample the AD value of high pressure sensor through sensor detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the err...

Page 229: ... of low pressure sensor through sensor detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between low pressure sensor and terminal in mainboard interface Poor contact between low pressure sensor and pressure detection position of unit low pressure sensor is abnormal D...

Page 230: ...ndition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circuit is ab...

Page 231: ...gment condition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circu...

Page 232: ...gment condition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circu...

Page 233: ...gment condition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circu...

Page 234: ...gment condition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circu...

Page 235: ...gment condition and method Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between discharge temperature sensor and terminal in mainboard interface Discharge temperature sensor is abnormal Detecting circu...

Page 236: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 237: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 238: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 239: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 240: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 241: ...ror judgment condition and method Sample the AD value of current sensor through detecting circuit and judge the range of AD value if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously report the error Possible reason Poor contact between circuit sensor and terminal in mainboard interface Small board of circuit sensor is abnormal Detecting circuit is abnormal ...

Page 242: ... condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value If the sampling AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between shell top temperature sensor and terminal in mainboard interface Shell top temperature sensor is abnormal Detecting c...

Page 243: ... condition and method Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value If the sampling AD value exceeds upper limit and lower limit in 30 seconds continuously report the error Possible reason Poor contact between shell top temperature sensor and terminal in mainboard interface Shell top temperature sensor is abnormal Detecting c...

Page 244: ...ard displays H7 Fan drive IPM high temperature protection Nixie tube on ODU main control board displays H8 Fan drive current detecting circuit error Nixie tube on ODU main control board displays HC Fan drive charging circuit error Nixie tube on ODU main control board displays HF Inverter fan non synchronism protection Nixie tube on ODU main control board displays H9 Inverter fan startup failure Ni...

Page 245: ...tion Error display IDU wired controller will display Error judgment condition and method Check the error code on IDU wired controller If IDU wired controller displays H2 you should also check the error code on nixie tube of ODU main control board Judge the detailed error of fan drive board according to the error code on main control board and arrange troubleshooting accordingly Possible reason Fan...

Page 246: ...will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If H5 is displayed it indicates inverter fan overcurrent protection Possible reason Poor contact of fan UVW wire Fan is broken Fan blade is blocked Fan blade is blocked and motor shaft is rusty Fan drive board is abnormal ...

Page 247: ...will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If H6 is displayed it indicates Drive IPM module protection of fan Possible reason Poor contact of fan UVW wire Fan is broken Fan blade is blocked Fan blade is blocked and motor shaft is rusty Fan drive board is abnormal ...

Page 248: ...e temperature sensor error Error display ODU mainboard will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If H7 is displayed it indicates fan drive temperature sensor error Possible reason Fan drive board is abnormal ...

Page 249: ...condition and method Check the error code on nixie tube of ODU main control board If H8 is displayed it indicates fan drive IPM high temperature protection Possible reason Thermal grease of IPM module hasn t been spread or thermal grease is not spread evenly or thermal grease is dry Screw of IPM module is not tightened Fan drive board is abnormal Troubleshooting ...

Page 250: ...or judgment condition and method Check the error code on nixie tube of ODU main control board If H9 is displayed it indicates Desynchronizing protection of inverter compressor Possible reason Poor contact of fan UVW wire Fan is broken Fan blade is blocked Fan blade is blocked and motor shaft is rusty Fan drive board is abnormal Troubleshooting ...

Page 251: ... input voltage of drive of inverter fan Possible reason Fan drive board is abnormal Troubleshooting 2 2 4 85 HH fan drive DC bus high voltage protection Error display ODU mainboard will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If HH is displayed it indicates fan drive DC bus high voltage protection Possible reason Power supply voltage...

Page 252: ... Possible reason Power supply voltage is lower than 320V Fan drive board is abnormal Troubleshooting 2 2 4 87 HJ Failure startup of inverter fan Error display ODU mainboard will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If HJ is displayed it indicates Failure startup of inverter fan Possible reason Poor contact of fan UVW wire Fan is b...

Page 253: ...ve light board will not display Error judgment condition and method In multiple modules system if any module causes system stoppage the modules without errors will display this error to indicate other module has error which causes unit stoppage Possible reason Other module has error for stoppage Troubleshooting Eliminate the error of other modules ...

Page 254: ...tion and method Check the operation current of compressor through current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 90 J2 Compressor 2 overcurrent protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 255: ... current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 91 J3 Compressor 3 overcurrent protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 256: ... current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 92 J4 Compressor 4 overcurrent protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 257: ... current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 93 J5 Compressor 5 overcurrent protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 258: ... current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 94 J6 Compressor 6 overcurrent protection Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 259: ...current sensor or circuit When current exceeds the limit the unit will stop for protection Possible reason System parameters are abnormal Drive module is abnormal Compressor is abnormal Troubleshooting 2 2 4 95 J7 Gas mixing protection of 4 way valve Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 260: ...tem high pressure and low pressure is lower than 0 1MPa after starting operation the unit will stop for protection Possible reason Coil or connection wire is abnormal Mainboard is abnormal Internal part of 4 way valve is abnormal Troubleshooting 2 2 4 96 J8 System high pressure ratio protection Error display ODU mainboard IDU wired controller and IDU receive light board will display ...

Page 261: ...ient temperature exceeds the requirement Troubleshooting 2 2 4 97 J9 System low pressure ratio protection Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method Check the system high pressure and low pressure through pressure sensor When the ratio between system high pressure and low pressure is smaller than 1 8 after starting ...

Page 262: ... IDU receive light board will display Error judgment condition and method Check if the rotation speed of IDU is too slow or it stops rotation or protection signal of outdoor fan is transferred If yes it is judged that indoor fan protection occurs Possible reason Motor stops operation or it is blocked IDU mainboard is abnormal ...

Page 263: ...ing 2 2 4 99 L3 Water full protection Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Check the status of IDU float switch When water level is too high float switch is activated so water ...

Page 264: ...REE GMV5 HR HEAT RECOVERY UNITS 260 full protection happens Possible reason IDU is installed improperly Drainage pump is broken Float switch operates abnormally IDU mainboard is abnormal Troubleshooting ...

Page 265: ...ly conducting wire of wired controller is short circuited IDU mainboard is abnormal Mainboard of wired controller is abnormal Troubleshooting 2 2 4 101 L5 Freeze protection Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Check IDU pipe temperature When pipe temperature is too low freeze protection will be activated to prevent freezing...

Page 266: ...lay IDU wired controller and IDU receive light board will display Error judgment condition and method No master IDU error will happen when there is no master IDU in the system Possible reason Master IDU is offline The mainboard of master IDU is replaced The mainboard of master IDU has error ...

Page 267: ...group controlled IDU quantity Possible reason IDU quantity connected with one wired controller exceeds 16 sets Actually connected IDU quantity is inconsistent with the set group controlled IDU quantity Troubleshooting 2 2 4 104 LA Group controlled IDU series inconsistency Error display IDU wired controller and IDU receive light board will display Error judgment condition and method Wired controlle...

Page 268: ...ng status Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method This code is function setting status code which indicates that the system has entered energy saving setting status 00 is the control with priority of comfort 01 is the control with priority of energy savings in which energy savings can reach 15 Possible reason Tro...

Page 269: ... Pay attention that IDU error and ODU error shall be inquired separately Possible reason Troubleshooting status code no troubleshooting 2 2 4 110 n7 Unit parameter inquiry status Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method This code is the inquiry status code which indicates that the system has entered the unit param...

Page 270: ...g only model status Error display ODU mainboard will display Error judgment condition and method This code is the heating only model status code which indicates that the system has been set to heating only unit status The IDUs can only operate in heating mode Possible reason Troubleshooting status code no troubleshooting 2 2 4 115 nC Cooling only model status Error display ODU mainboard will displ...

Page 271: ...ard Then arrange troubleshooting accordingly Possible reason Compressor drive module reset protection P3 is displayed on the nixie tube of ODU main control board Compressor drive temperature sensor error P7 is displayed on the nixie tube of ODU main control board Compressor drive IPM high temperature protection P8 is displayed on the nixie tube of ODU main control board Compressor drive current de...

Page 272: ...lay IDU wired controller will display Error judgment condition and method Check error code through IDU wired controller If IDU wired controller displays P2 please also check the error code displayed on the nixie tube of ODU main control board Detailed error of compressor drive board can be judged according to the error code on main control board Then arrange troubleshooting accordingly Possible re...

Page 273: ...or judgment condition and method Check the error code on nixie tube of ODU main control board If P5 is displayed it indicates inverter compressor overcurrent protection Possible reason Poor contact of compressor UVW wire Connection sequence of compressor UVW wire is wrong Compressor is broken System is blocked Compressor drive board IPM module is broken ...

Page 274: ...sor IPM protection Error display ODU mainboard will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If P6 is displayed it indicates inverter compressor overcurrent protection Possible reason Poor contact of compressor UVW wire ...

Page 275: ...ion sequence of compressor UVW wire is wrong Compressor is broken System is blocked Compressor drive board IPM module is broken Troubleshooting 2 2 4 124 P7 Compressor drive board temperature sensor error Error display ODU mainboard will display ...

Page 276: ...mainboard will display Error judgment condition and method Check the error code on nixie tube of ODU main control board If P8 is displayed it indicates compressor drive board IPM high temperature protection occurs Possible reason Screw of IPM module is not tightened Thermal grease of IPM module hasn t been spread or thermal grease is not spread evenly or thermal grease is dry Fan drive board is ab...

Page 277: ...ITS 273 Check the error code on nixie tube of ODU main control board If P9 is displayed it indicates Desynchronizing protection of inverter compressor Possible reason Compressor is broken Fan drive board is abnormal Troubleshooting ...

Page 278: ... compressor drive current detecting circuit error Possible reason Compressor drive board is abnormal Troubleshooting 2 2 4 128 PH Compressor drive DC bus high voltage protection Error display ODU mainboard will display Error judgment condition and method If the mainboard detects that input power cord voltage exceeds 460V it will report high voltage protection Possible reason Power supply voltage i...

Page 279: ... will report low voltage protection Possible reason Power supply voltage is lower than 320V Compressor drive board is abnormal Troubleshooting 2 2 4 130 PJ Inverter compressor startup failure Error display ODU mainboard will display Check the error code on nixie tube of ODU main control board If PJ is displayed it indicates inverter compressor startup failure Poor contact of compressor UVW wire Co...

Page 280: ...GREE GMV5 HR HEAT RECOVERY UNITS 276 Troubleshooting 2 2 4 131 U0 Insufficient compressor preheating time Error display ODU mainboard IDU wired controller and IDU receive light board will ...

Page 281: ...ainboard detects that the capacity code doesn t comply with the actual unit capacity or ODU mainboard detects that the jumper cap value doesn t comply with the actual unit Possible reason Capacity DIP switch is wrong or jumper cap is wrong for those models without jumper cap it won t be detected DIP switch or jumper cap is broken Detecting circuit is abnormal Troubleshooting 2 2 4 133 U3 Power pha...

Page 282: ...gh pressure and low pressure through pressure sensor When the system high pressure and low pressure is lower than 5 of outdoor ambient temperature before starting operation the unit will stop for protection Possible reason Refrigerant charging amount is insufficient System pipeline is leaked Troubleshooting 2 2 4 135 U6 Valve error Error display ODU mainboard IDU wired controller and IDU receive l...

Page 283: ...ard will display Error judgment condition and method During commissioning check if IDU pipeline is blocked through detecting IDU pipeline If the parameter is abnormal it will indicate t Possible reason Electronic expansion valve doesn t operate normally IDU pipeline is blocked Troubleshooting 2 2 4 137 U9 ODU pipeline error Error display ODU mainboard IDU wired controller and IDU receive light boa...

Page 284: ...tting of master IDU is done Possible reason Troubleshooting 2 2 4 139 UL Compressor emergency operation DIP switch error Error display ODU mainboard IDU wired controller and IDU receive light board will display Error judgment condition and method If setting of compressor emergency operation DIP switch is not within the setting range it will indicate this error Possible reason Troubleshooting Reset...

Page 285: ...ent condition and method 1 When electronic expansion valve is opened to 2000PLS in cooling operation of IDU and IDU coil outlet pipe temperature is 5 C higher than inlet pipe temperature 2 When electronic expansion valve is opened to 2PLS in heating operation of IDU and IDU coil outlet pipe temperature is 12 C lower than saturated temperature corresponding to high pressure Possible reason ODU cut ...

Page 286: ...GREE GMV5 HR HEAT RECOVERY UNITS 282 Troubleshooting ...

Page 287: ...osition DIP setting position DIP setting position Master module state Slave module state 2 AP1 LED When a master module is powered on LED1 is displayed as 01 For a slave module LED1 is displayed as 02 03 or 04 as shown in the figure below LED1 display state Master module state LED1 display state Slave module state LED1 display state Slave module state LED1 display state Slave module state Or Or 1 ...

Page 288: ...g in part II chapter III 1 1 3 Cautions on Replacement of Slave ODU AP1 Before replacing slave module AP1 set DIP identical to that of the faulty AP1 check wiring and then power on the AP1 After replacing the main board of master module the complete unit must start commissioning again If the main board of slave module is replaced there is no need to start commissioning for the complete unit 1 2 Ca...

Page 289: ...alues 2 If the IDU is configured with wireless control use the special control YV1L1 to set P35 and P36 to default values 3 If the IDU is configured with wireless control and special control you can restore engineering settings through the AP1 SW1 button After AP1 is powered on press and hold SW1 for 5 seconds If a tick sound is heard release the button 1 2 3 Cautions on Replacement of Master IDU ...

Page 290: ...l to that of a unit within the network Manually change it to the original number of the faulty AP1 or a unique number There are three methods to change project number Method 1 If the IDU is configured with wired control set P42 to a new project number Method 2 If the IDU is configured with lamp board use the special control YV1L1 to set P42 to a new project number Method 3 If the IDU is configured...

Page 291: ...efer to section 2 3 Cautions on Replacement of Master IDU AP1 to address the issue 1 3 Cautions on Wired Control Replacement 1 3 1 Cautions on Wired Control XK46 Replacement 1 If the wired control to be replaced controls only one IDU directly replace the control 2 If the wired control to be replaced controls multiple IDUs perform the steps below first Set the wired control parameter P14 to change ...

Page 292: ...control to digital end neglect switch 2 2 If the wired control needs an access control system set switch 1 for DIP S1 at the bottom of the wired control to ON neglect switch 2 and connect the access control card interface to ports N and L or ports VCC and GND of the wiring terminal The following should be noted 1 Ports N and L are power interfaces of 100 240V 50 60Hz access control 2 Ports VCC and...

Page 293: ...ure below shows current curves that change with evaporating temperature and condensing temperature while the compressors work at 60 Hz The figure below shows current curves that change with evaporating temperature and condensing temperature while the compressors work at 90 Hz NOTE You can infer from the preceding figures the current of the compressors operating at other frequency bands ...

Page 294: ... with evaporating temperature and condensing temperature while the compressor works at 60 Hz The figure below shows current curves that change with evaporating temperature and condensing temperature while the compressor works at 90 Hz NOTE You can infer from the preceding figures the current of the compressor operating at other frequency bands Step 2 Check whether the compressor sounds sharp or ru...

Page 295: ...es 1 and 2 are normal Touch the pipelines next to the return capillary tubes to check whether there is oil flowing Check method for each part 1 Electric expansion valve This valve will reset for each power on or power off action Touch the valve and you will feel its vibration during the reset action A crack sound will be heard as well Description of electric expansion valve ...

Page 296: ...of gas separator C connects to condenser When the system is cooling the pipe at side C works at high pressure high temperature the pipes at sides E and S work at low pressure low temperature when the system is heating the pipe at side E works at high pressure high temperature the pipes at sides C and S work at low pressure low temperature The pipe at side D connects to exhaust and it is always wor...

Page 297: ... Test the compressor drive namely the IPM module to see whether it is normal 1 Disconnect the power supply Five minutes later remove the line of the faulty compressor 2 Set a multimeter to gear diode As shown in the figure below put the black test probe to pad P on the left of pad U BL and the red test probe to pad U BL make sure the moisture proof tape is removed In normal cases the multimeter sh...

Page 298: ... to pad P and the red test probe to pad W RD make sure the moisture proof tape is removed In normal cases the multimeter should read 0 39 0 3 V If it is 0 or infinitely great the IPM module is faulty 5 As shown in the figure below put the black test probe to pad U BL and the red test probe to pad NU make sure the moisture proof tape is removed In normal cases the multimeter should read 0 39 0 3 V ...

Page 299: ...al cases the multimeter should read 0 39 0 3 V If it is 0 or infinitely great the IPM module is faulty 2 1 2 Precondition Units cannot be normally started Step 1 Disconnect the power supply of the units and open the electric junction box of the compressor to see whether wiring of the compressor is intact Step 2 Measure resistance between two wiring terminals U V W The resistance value range should...

Page 300: ... reconnect them in a correct manner after clearing The removed electric box must be covered and protected from wind and sun For GMV5 HR series only GMV Q120WM B F U units are configured with the left electric box which contains mainly the drive of the compressor E405DHD 38A2YG After the box is removed take care with the removal of electric parts lines DO NOT pull the lines with excessive force or ...

Page 301: ...iable frequency units their compressors are both inverter compressors differing in models The one close to the condenser is compressor 1 E706DHD 72A2YG and the other close to the liquid separator head is compressor 2 E405DHD 38A2YG The removal procedure is basically the same Low pressure check valve Liquid pipe High pressure gas pipe Low pressure gas pipe Refrigerant should be released from the hi...

Page 302: ...s with tapes They should be kept intact for further analysis Step 5 Check system parts If system oil is contaminated check unit parts including oil separator gas liquid separator and storage tank 1 Check oil separator Remove the oil separator For the removal procedure refer to step 4 Tilt the separator to draw oil out into a container Block the container for further factory inspection 1 Inlet of i...

Page 303: ...olours and block the container for further factory inspection Note If the compressor needs replacement the gas liquid separator needs replacement as well regardless whether the separator contains impurities or has faults or not 2 Check oil return pipes Remove oil return pipes and check oil volume and impurity 1 Weld the inlet and outlet pipes of the gas separator 3 Remove thegas liquid pipe 2 Unsc...

Page 304: ...er analysis Note Volumes of oils drawn out from the oil separator and gas separator should be recorded After faulty compressors and parts are replaced you should fill new oils of equivalent amount into the compressors and parts Step 6 Clear pipeline system Check pipelines for abnormalities Charge nitrogen into the main pipeline and clear the pipeline system ...

Page 305: ...parations 1 Prepare new parts In the course of moving compressors do not lay them down or put them upside down The tilt angle should be less than 30 Make sure oil will not overflow from the oil balance opening The inlet and outlet should be blocked If the sealing rubber is not available cover them with tape to prevent direct contact of oil and air 1 remove the oil return filter to see whether it i...

Page 306: ... should be 2 0 MPa at least 2 Prepare welding rods In addition to ordinary welding rods you should also prepare special welding rods containing 5 or more silver Compressors inlets and outlets are made of copper plated steels which require special welding rods and materials 3 Prepare gases for welding Oxygen and acetylene of proper amount should be determined with consideration of actual welding po...

Page 307: ... Make sure nitrogen can smoothly flow through the gas separator Step 9 Install a new oil separator The original oil separator if is found to have no impurities or other objects can be used further more This part serves as a container and it does not have complex structure However if it contains impurities or other objects replace it This is because a dirty oil separator cannot be thoroughly cleane...

Page 308: ...ct You are advised to replace them one after another Note Keep wiring identical to factory installation Control varies with compressors Wrong wiring or inverse connection of the compressors may cause damage to units 1 Weld the inlet of inverter compressor 2 Weld the outlet of inverter compressor 3 Screw the compressor 1 Weld the inlet of inverter compressor 2 Weld the outlet of inverter compressor...

Page 309: ...ge through all valves Nitrogen pressure should be larger than 20 kgf Then charge soapsuds into the system and check specially the weld joints for leakage 3 Finally charge nitrogen into the system again for pressure check Close all valves and keep system pressure up to 25 kgf for more than 12 hours If the pressure remains unchanged you can extract all air Otherwise you should find the leakage point...

Page 310: ...ng valve The lubricant will be pressed into the low pressure side of units 5 If the lubricant is added portion by portion close the oil checking valve first and then measure another portion of lubricant In the course of repeated measuring and adding keep the extraction action 6 After a required amount of lubricant is added close the oil checking valve to ensure tightness Note Lubricant is of great...

Page 311: ...Measure and check the pressure of the entire refrigerant product against the saturation pressure temperature list Verify temperature parameter If the difference between the actual temperature and the parameter value is 3 C 37 4 F or more the refrigerant quality is unsatisfactory 2 If the refrigerant is proved satisfactory fill refrigerant of the combined amount of the rated amount specified on the...

Page 312: ...Set a mark beside the power supply for warning 2 Measure compressor drive DC bus voltage between two wire terminals of P U V W and N Set the multimeter to the DC voltage gear and measure the voltage between P and N The voltage should be lower than 36 V If no multimeter is available wait for 20 minutes before performing the steps below 3 Disconnect all lines of the compressor drive including compre...

Page 313: ...fan drive compressor drive output 18 VDC bridge rectifier output P bridge rectifier output N compressor drive output 540 VDC reactor s wiring terminal bridge rectifier input AC inlead compressor drive s mains terminal See the figure below ...

Page 314: ...GREE GMV5 HR HEAT RECOVERY UNITS 310 4 Loosen the screws on the compressor drive as shown in the figure below ...

Page 315: ...GREE GMV5 HR HEAT RECOVERY UNITS 311 5 Replace the compressor drive Before the replacement apply some silicone tape onto the IPM module 6 Install a new compressor drive screw and wire it ...

Page 316: ...ting belt top temperature sensor and discharge air temperature sensor Remove the sound proof sponge from the compressor Use a screwdriver to unscrew the power line Remove the power line Remove the electric heating belt top temperature sensor and discharge air temperature sensor Note Before removing the power line mark the colours of the line and corresponding wiring terminals 3 Loosen the nuts of ...

Page 317: ... pipes by acetylene welding and then install the pipes During welding charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure Avoid nearby materials from being burnt during welding 8 Connect the power line to the compressor and install the electric heating belt top temperature sensor and discharge air temperature sensor Put the power line in a prop...

Page 318: ...ew the electric box 2 Remove the electric box Disconnect internal and external connecting lines of the electric box Protect the internal parts during the disassembly 3 Disassemble the four way valve Use a screwdriver to unscrew accessories of the four way valve Remove the accessories Heat the connecting pipes of the four way valve by acetylene welding and then remove the pipes Record the direction...

Page 319: ...ng cover the valve with wet cloth to avoid internal slide from being burnt and prevent water from flowing in the pipeline During welding charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure 6 Fix and wire the electric box Put the electric box back to original position and screw it Connect all lines 7 Check and install the front panels Check vari...

Page 320: ...ottom of the electric box Use a screwdriver to unscrew the electric box 2 Remove the electric box Disconnect internal and external connecting lines of the electric box Protect the internal parts during the disassembly 3 Disassemble the electric expansion valve Remove the coil from the electric expansion valve Heat the connecting pipes of the electric expansion valve by welding and remove the pipes...

Page 321: ... cover the valve with wet cloth During welding charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure Note Avoid nearby parts from being burnt during welding Install the coil on the electric expansion valve 6 Fix and wire the electric box Put the electric box back to original position and screw it Connect all lines 7 Check and install the front pa...

Page 322: ... electric box Use a screwdriver to unscrew the electric box 2 Remove the electric box Disconnect internal and external connecting lines of the electric box Protect the internal parts during the disassembly 3 Disassemble the oil separator Use a screwdriver to unscrew the oil separator Loosen the electric heating belt Heat the four pipe joints of the oil separator by welding and remove the connectin...

Page 323: ...ng charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure Note Avoid nearby parts from being burnt during welding Screw the oil separator Tighten the electric heating belt 6 Fix and wire the electric box Put the electric box back to original position and screw it Connect all lines 7 Check and install the front panels Check various parts and connec...

Page 324: ...the hooks at the bottom of the electric box Use a screwdriver to unscrew the electric box 2 Remove the electric box Disconnect internal and external connecting lines of the electric box Protect the internal parts during the disassembly 3 Disassemble the gas liquid separator Heat the connecting pipes of the gas liquid separator by acetylene welding and then remove the pipes Note Avoid nearby parts ...

Page 325: ...s and weld the pipes with the gas liquid separator During welding charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure Note Avoid nearby parts from being burnt during welding Screw the gas liquid separator 6 Fix and wire the electric box Put the electric box back to original position and screw it Connect all lines 7 Check and install the front p...

Page 326: ... unscrew the electric box 2 Remove the electric box Disconnect internal and external connecting lines of the electric box Protect the internal parts during the disassembly 3 Disassemble the heat exchanging board Heat the connecting pipes of the heat exchanging board by acetylene welding and then remove the pipes Note Avoid nearby parts from being burnt during welding The joints of the board must b...

Page 327: ...g welding charge nitrogen into the pipes The pressure should be controlled within 0 5 0 1 kgf cm2 relative pressure Note Avoid nearby parts from being burnt during welding 6 Fix and wire the electric box Put the electric box back to original position and screw it Connect all lines 7 Check and install the front panels Check various parts and connecting lines If no problem is found hook the front pa...

Page 328: ...e coil of solenoid valve and the coil of electronic expansion valve Remove screws used for fixing the coil of solenoid valve and then remove the coil of solenoid valve and the coil of electronic expansion valve Before removing those coils please note the installation position of each coil 5 Take out the pipeline sub assy and weld to remove the solenoid valve which should be replaced Wrap the solen...

Page 329: ...and outlets for blockage 2 Check whether they are properly earthed 3 Check batteries of the remote control 4 Check whether air filters have been properly installed 5 Turn the power switch on 8 hours beforehand to pre heat the outdoor compressor crankcase before the unit is restarted after being in idle status for a long time 6 Check ODU installation If an abnormality is found contact GREE s specia...

Page 330: ...al insulation of condensing pipes Electric system Power line diameter Cabling of power lines Air circuit breaker Communication system Materials of communication lines Connection of communication lines 3 DEBUG PARAMETER RECORD LIST Project name Unit model Debugged by Date ODU rated capacity kW General IDU rated capacity kW Total length of refrigerant pipes m Maximum fall of IDUs m Fill amount of re...

Page 331: ... psi 43 45 4 1 54 22 34 9 15 8 5 97 86 59 25 77 0 16 64 241 34 42 43 6 1 61 23 35 8 17 6 6 18 89 63 26 78 8 17 08 247 72 41 41 8 1 68 24 37 7 19 4 6 39 92 68 27 80 6 17 54 254 40 40 40 0 1 76 25 53 6 21 2 6 61 95 87 28 82 4 18 01 261 21 39 38 2 1 84 26 69 5 23 0 6 84 99 21 29 84 2 18 48 268 03 38 36 4 1 93 27 99 4 24 8 7 07 102 54 30 86 0 18 97 275 14 37 34 6 2 02 29 30 3 26 6 7 30 105 88 31 87 8 ...

Page 332: ...3 4 15 77 228 72 65 149 0 42 78 620 47 10 14 0 5 77 83 69 24 75 2 16 20 234 96 67 152 6 44 57 646 43 4 2 Resistance temperature lists of temperature sensors 1 Voltage list of 15 kΩ temperature sensors including ODU and IDU temperature sensors Temperature Resistance Voltage Temperature Resistance Voltage C F kΩ V C F kΩ V 20 4 144 0 311 71 159 8 2 523 2 825 19 2 2 138 1 0 323 72 161 6 2 439 2 838 1...

Page 333: ...3 161 25 77 15 1 65 116 240 8 0 642 3 165 26 78 8 14 36 1 686 117 242 6 0 625 3 168 27 80 6 13 74 1 722 118 244 4 0 608 3 171 28 82 4 13 16 1 758 119 246 2 0 592 3 175 29 84 2 12 6 1 793 120 248 0 577 3 178 30 86 12 07 1 829 121 249 8 0 561 3 181 31 87 8 11 57 1 863 122 251 6 0 547 3 184 32 89 6 11 09 1 897 123 253 4 0 532 3 187 33 91 4 10 63 1 931 124 255 2 0 519 3 19 34 93 2 10 2 1 964 125 257 0...

Page 334: ...cluding temperature sensors for defroster sub cooler gas liquid separator and IDU suction and discharge pipes Temperature Resistance Voltage Temperature Resistance Voltage C F kΩ V C F kΩ V 30 22 361 8 0 173 66 150 8 3 998 2 75 29 20 2 339 8 0 183 67 152 6 3 861 2 766 28 18 4 319 2 0 195 68 154 4 3 729 2 781 27 16 6 300 0 206 69 156 2 3 603 2 796 26 14 8 282 2 0 218 70 158 3 481 2 811 25 13 265 5 ...

Page 335: ...57 2 32 98 1 246 110 230 1 01 3 141 15 59 31 47 1 282 111 231 8 0 9825 3 145 16 60 8 30 04 1 319 112 233 6 0 9556 3 15 17 62 6 28 68 1 356 113 235 4 0 9295 3 153 18 64 4 27 39 1 393 114 237 2 0 9043 3 157 19 66 2 26 17 1 429 115 239 0 8799 3 161 20 68 25 01 1 466 116 240 8 0 8562 3 165 21 69 8 23 9 1 503 117 242 6 0 8333 3 168 22 71 6 22 85 1 54 118 244 4 0 8111 3 171 23 73 4 21 85 1 577 119 246 2...

Page 336: ...140 4 948 2 646 156 312 8 0 3164 3 249 61 141 8 4 773 2 664 157 314 6 0 3093 3 25 62 143 6 4 605 2 682 158 316 4 0 3024 3 251 63 145 4 4 443 2 7 159 318 2 0 2956 3 252 64 147 2 4 289 2 717 160 320 0 2891 3 253 65 149 4 14 2 734 3 Voltage list of 50 kΩ discharge temperature sensors including top temperature sensor and discharge air temperature sensor Temperature Resistance Voltage Temperature Resis...

Page 337: ...113 37 0 267 98 208 4 3 5143 2 442 8 46 4 107 96 0 28 99 210 2 3 4128 2 46 9 48 2 102 85 0 292 100 212 3 3147 2 478 10 50 98 006 0 306 101 213 8 3 22 2 496 11 51 8 93 42 0 319 102 215 6 3 1285 2 514 12 53 6 89 075 0 333 103 217 4 3 0401 2 531 13 55 4 84 956 0 348 104 219 2 2 9547 2 547 14 57 2 81 052 0 362 105 221 2 8721 2 564 15 59 77 349 0 378 106 222 8 2 7922 2 58 16 60 8 73 896 0 393 107 224 6...

Page 338: ...4 15 753 1 281 144 291 2 1 0667 2 982 54 129 2 15 173 1 311 145 293 1 0429 2 988 55 131 14 618 1 34 146 294 8 1 0197 2 995 56 132 8 14 085 1 37 147 296 6 0 9971 3 001 57 134 6 13 575 1 4 148 298 4 0 9752 3 007 58 136 4 13 086 1 429 149 300 2 0 9538 3 013 59 138 2 12 617 1 459 150 302 0 9331 3 018 60 140 12 368 1 475 4 3 Voltage pressure lists of pressure sensors 4 3 1 High pressure sensor R410a Te...

Page 339: ... 417 2 98 8 17 6 618 89 6 0 573 48 118 4 2944 426 9 3 053 7 19 4 639 92 7 0 596 49 120 2 3013 436 9 3 126 6 21 2 661 95 8 0 619 50 122 3083 447 3 201 5 23 684 99 2 0 644 51 123 8 3154 457 3 3 277 4 24 8 707 102 5 0 668 52 125 6 3226 467 8 3 353 3 26 6 730 105 9 0 693 53 127 4 3300 478 5 3 432 2 28 4 754 109 3 0 718 54 129 2 3374 489 2 3 511 1 30 2 779 113 0 745 55 131 3450 500 3 3 592 0 32 804 116...

Page 340: ...04 15 1 0 505 5 41 940 136 3 2 177 50 58 109 15 8 0 515 6 42 8 969 140 5 2 235 49 56 2 115 16 7 0 527 7 44 6 999 144 9 2 295 48 54 4 121 17 5 0 539 8 46 4 1030 149 4 2 357 47 52 6 127 18 4 0 551 9 48 2 1061 153 8 2 419 46 50 8 133 19 3 0 563 10 50 1096 158 9 2 489 45 49 140 20 3 0 577 11 51 8 1125 163 1 2 547 44 47 2 146 21 2 0 589 12 53 6 1159 168 1 2 615 43 45 4 154 22 3 0 605 13 55 4 1193 173 2...

Page 341: ...1 1 015 33 91 4 2048 297 4 393 22 7 6 373 54 1 1 043 34 93 2 2100 304 5 4 497 21 5 8 388 56 3 1 073 35 95 2153 312 2 4 603 20 4 403 58 4 1 103 36 96 8 2208 320 2 4 713 19 2 2 418 60 6 1 133 37 98 6 2263 328 1 4 823 18 0 4 434 62 9 1 165 38 100 4 2320 336 4 4 937 17 1 4 450 65 3 1 197 39 102 2 2377 344 7 5 051 16 3 2 467 67 7 1 231 40 104 2439 353 7 5 175 15 5 484 70 2 1 265 5 EXPLODED VIEWS AND SP...

Page 342: ...y Filter 07218769 1 07218769 1 22 Plate type Heat Exchanger 00904100005 1 00904100005 1 23 Right Side Plate 01314713P 1 01314713P 1 24 Chassis Assy 01194100097 1 01194100097 1 25 Accumulator 07424100036 1 07424100036 1 26 Electromagnetic Valve 43000055 1 43000055 1 27 Oil Separator 0742418601 1 0742418601 1 28 Cut off Valve 07334100011 1 07334100011 1 29 Cut off valve 07334100054 1 07334100054 1 3...

Page 343: ...32218000009 1 32218000009 1 55 Pressure sensor 32218000008 1 32218000008 1 56 Electric Heater Compressor 7651540713 1 7651540713 1 57 Left Side Plate 01314712P 1 01314712P 1 58 Filter 07218603 1 07218603 1 59 4 way Valve 43000339 2 43000339 2 60 Electric Box Assy 01394100567 1 01394100567 1 61 Filter Board 30228000032 1 30228000032 1 62 Rectifier 46018000014 1 46018000014 1 63 Main Board 302280000...

Page 344: ...n 10434100002 2 10434100002 2 5 Fan Motor 15704124 2 15704124 2 6 Nozzle for Adding Freon 43000054 5 43000054 5 7 4 way Valve 07415200002 4 07415200002 4 8 Filter 06120012 2 06120012 2 9 One way Valve 07335210 2 07335210 2 10 Electromagnetic Valve 061200101 1 061200101 1 11 Strainer 0112410009601 1 0112410009601 1 12 Rear Grill 01574100001 1 01574100001 1 13 Condenser Assy 07334100002 2 0733410000...

Page 345: ...544100003P 1 39 Front Panel right 01544100005P 1 01544100005P 1 40 Sensor Sub assy 39008000117G 1 39008000117G 1 41 Magnet Coil electromagnetic valve 4304000479 1 4304000479 1 42 Magnet Coil electromagnetic valve 4304000436 1 4304000436 1 43 Magnet Coil electromagnetic valve 4304000411 1 4304000411 1 44 Magnet Coil electromagnetic valve 4304000439 1 4304000439 1 45 Magnet Coil electromagnetic valv...

Page 346: ...8000002 1 49018000002 1 69 Rectifier 49018000001 2 49018000001 2 70 Main Board 42018000558 1 42018000558 1 71 Radiator 42011106 1 42011106 1 72 Electric Box Assy 300027000593 1 300027000593 1 73 Filter Board 42018000026 1 42018000026 1 74 Rectifier 01574100002 2 01574100002 2 75 Main Board 01264100006P 1 01264100006P 1 76 Radiator 10474100002 2 10474100002 2 77 Main Board 10434100002 2 10434100002...

Page 347: ...00002 2 4 Axial Flow Fan 02204102 1 5 Fan Motor 15704119 1 6 4 way Valve 43000339 1 7 Nozzle for Adding Freon 06120012 1 8 Filter 07218603 1 9 One way Valve 07335210 2 10 Upper Cover Plate back 01264100005P 1 11 Rear Grill 016001500381 1 12 Condenser Assy 01100250016201 1 13 Nozzle for Adding Freon 06130002 1 14 Strainer 07415200002 1 15 Nozzle for Adding Freon 061200101 1 16 Electromagnetic Valve...

Page 348: ... 1 38 Discharge Charge Valve 07334100002 1 39 One Way Valve 07130101 1 40 Gas Tube Filter 072190511 1 41 Plate type Heat Exchanger 00904100004 1 42 Reactor 4901800000201 1 43 Left Side Plate 012055500022P 1 44 One way Valve 04324001 1 45 Strainer 07210037 1 46 Electronic Expansion Valve 43044100190 1 47 Magnet Coil electromagnetic valve 4304000456 1 48 Magnet Coil electromagnetic valve 4304000461 ...

Page 349: ... Sub assy 39008000119G 1 67 Electric Box Assy 100002002650 1 68 Filter Board 30228000032 2 69 Main Board 30223000046 2 70 Radiator 49018000001 2 71 Terminal Board 42018000558 1 72 Main Board 30223000046 2 73 Terminal Board 422000060004 1 74 Main Board 300027060310 1 75 AC Contactor 44010265 2 76 Radiator 49010252 1 77 Radiator 49010252 1 78 Terminal Board 42018000558 1 79 Electric Box Assy 1000020...

Page 350: ... 20 Electromagnetic Valve 43000072 1 072190511 1 21 One way Valve 04324001 1 07218769 1 22 Bidirection Strainer 07210044 1 00904100004 1 23 Chassis Assy 01194100097 1 01314713P 1 24 Accumulator 07424100036 1 01194100095P 1 25 Electromagnetic Valve 43000055 1 07424100036 1 26 Oil Separator 0742418601 1 43000055 1 27 Cut off Valve 07334100011 1 061200101 1 28 Cut off valve 07334100054 1 0742418601 1...

Page 351: ...08 1 4304413204 1 56 Electric Heater Compressor 7651540713 1 32218000009 1 57 Left Side Plate 01314712P 1 32218000008 1 58 Filter 07218603 1 7651540713 1 59 4 way Valve 43000339 2 7651540714 2 60 Transformer 43118000023 1 01314712P 1 61 Filter Board 30228000015 1 00204100016 1 62 Reactor 4313017401 1 00204116 1 63 Main Board 300027000545 1 07333700032 1 64 Rectifier 46010604 1 4602000912 1 65 Main...

Page 352: ...00006P 1 3 Diversion Circle 10474100002 2 4 Axial Flow Fan 10434100002 1 5 Brushless DC Motor 15704124 1 6 Nozzle for Adding Freon 06120012 1 7 4 way Valve 43000339 1 8 Filter 07218603 1 9 One way Valve 07335210 1 10 Electromagnetic Valve 43000054 1 11 Strainer 07415200002 1 12 Rear Grill 01574100001 1 13 Condenser Assy 0112410009001 1 14 Discharge Charge Valve 07334100002 1 ...

Page 353: ...lectromagnetic Valve 43044100144 1 34 Gas liquid Separator 07424138 1 35 Nozzle for Adding Freon 06130002 1 36 Top Cover front 01264100004P 2 37 Handle 26904100016 2 38 Front Panel left 01544100003P 1 39 Front Panel right 01544100005P 1 40 Sensor Sub assy 39008000119G 1 41 Magnet Coil 4304000414 1 42 Magnet Coil 4304000438 1 43 Magnet Coil 4304000409 1 44 Magnet Coil 4304000411 1 45 Magnet Coil 43...

Page 354: ...394P 1 67 Transformer 43118000023 1 68 Reactor 43138004 1 69 Filter Board 30228122 1 70 Rectifier 46010058 1 71 Main Board 30228609 1 72 Radiator 49018000002 1 73 Electric Box Assy 01394100356 1 74 Electric Box Assy 100002003638 1 75 Filter Board 30228000015 1 76 Main Board 30228000010 1 77 Rectifier 46010604 1 78 Main Board 300027000545 2 79 Main Board 30229009 2 80 Radiator 49018000001 2 81 Reac...

Page 355: ...3 Pinboard 30270000002 1 4 Terminal Board 42018000026 2 5 Electromagnetic Valve 43000073 2 6 Chassis 01284100129P 1 7 Seal plate 01494100015P 1 8 Side Plate 01314100096P 1 9 Hook 02112446 4 10 Strainer 0741410000601 2 11 Electronic Expansion Valve 07334463 1 12 Strainer 07415200002 1 13 Electromagnetic Valve 43000054 1 14 Seal plate 01494100014P 1 15 Electric Expand Valve Fitting 4304413205 1 16 M...

Page 356: ...20 Temperature Sensor 390000372G 1 5 7 NCHS2B U No Name of part NCHS2B U Product Code EN01600010 Part code Quantity 1 Top Cover 012020060141P 1 2 Terminal Board 422000000014 1 3 Terminal Board 42018000026 2 4 Pinboard 300023000009 1 5 Chassis 012008000028P 1 6 Water Tray Sub_Assy 017055000063P 1 7 Electromagnetic Valve 43000073 2 8 Strainer 07415200002 1 9 Electromagnetic Valve 43000054 1 ...

Page 357: ...e 07334463 1 17 Seal Plate 012034000092 1 18 Magnet Coil electromagnetic valve 4304000469 1 19 Magnet Coil electromagnetic valve 4304000471 1 20 Magnet Coil electromagnetic valve 4304000466 1 21 Magnet Coil electromagnetic valve 4304000467 1 22 Magnet Coil electromagnetic valve 4304000470 1 23 Magnet Coil electromagnetic valve 4304000468 1 24 Magnet Coil electromagnetic valve 4304000465 1 25 Tempe...

Page 358: ...g 01264100058P 1 2 Terminal Board 420111451 1 3 Terminal Board 42018000026 3 4 Pinboard 30270000002 2 5 Chassis 01284100135P 1 6 Water Tray Sub Assy 01284100147P 1 7 Electromagnetic Valve 43000073 8 8 Strainer 07415200002 1 9 Electromagnetic Valve 43000054 1 10 Choke Plug of Drain Pipe 76712455 2 11 Seal plate 01494100018P 1 ...

Page 359: ...P 1 14 Strainer 0741410000601 2 15 Electronic Expansion Valve 07334463 1 16 Seal plate 01494100017P 1 17 Magnet Coil 4304000428 1 18 Magnet Coil 4304000448 2 19 Magnet Coil 4304000447 2 20 Magnet Coil 4304000449 2 21 Magnet Coil 4304000446 2 22 Tube sensor 3900012128G 1 23 Temperature Sensor 390000372G 1 24 Electric Expand Valve Fitting 4304413205 1 ...

Page 360: ...42P 1 2 Terminal Board 422000000014 1 3 Terminal Board 42018000026 5 4 Pinboard 300023000009 4 5 Chassis 01284100142P 1 6 Water Tray Sub Assy 01284100153P 1 7 Electromagnetic Valve 43000073 2 8 Strainer 07415200002 1 9 Electromagnetic Valve 43000054 2 10 Choke Plug of Drain Pipe 76712455 2 11 Seal plate 01494100018P 1 12 Hook 02112446 4 ...

Page 361: ...1 2 16 Electronic Expansion Valve 07334463 1 17 Seal plate 01494100017P 1 18 Magnet Coil 4304000428 1 19 Magnet Coil 4304000448 4 20 Magnet Coil 4304000447 4 21 Magnet Coil 4304000449 4 22 Magnet Coil 4304000446 4 23 Magnet Coil 4304000450 4 24 Magnet Coil 4304000451 4 25 Temperature Sensor 3900012139G 1 26 Temperature Sensor 3900012121G 1 27 Electric Expand Valve Fitting 4304413205 1 ...

Page 362: ...JF00302879 ...

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