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46

DC Inverter Multi
VRF Service Manual

DPOUSPM

Installation Table

Table 3 Installation Table

Region No.

Indoor unit no.

Present indoor unit no.

Indoor unit location

08

03

08-03

No.3 indoor unit in Room B Floor A

Note:

1 ) Region no. indicates online region no.1-64, displayed by the centralized controller.
2 ) Indoor unit no. indicates online indoor unit no., 1-16, displayed by centralized controller.
3 ) Present indoor unit no. indicates present indoor unit no. displayed by centralized controller.
4 ) Indoor unit location indicates actual location of centralized controller, which is expressed by No.___
indoor unit, Room____, Floor ______.

7.2.8 Attachment

Error Code List:

Error code list of GMV VRF

Error Code

Malfunction

E1

High pressure protection of compressor

E2

Antifreezing protection of indoor unit

E3

Low pressure protection of compressor

E4

Discharge temperature protection of compressor

E5

Overcurrent protection, overload protection of compressor, drive malfunction

E6

Communication malfunction

E7

0RGHVFRQÀLFW

E8

Indoor fan motor protection

E9

:DWHURYHUÀRZSURWHFWLRQFDVVHWWHW\SHXQLW

EH

E-heater protection

F0

Ambient temperature sensor malfunction of indoor unit

F1

Malfunction of coil pipe inlet sensor of indoor unit

F2

Malfunction of coil pipe intermediate sensor of indoor unit

F3

Malfunction of coil pipe outlet sensor of indoor unit

F4

Ambient temperature sensor malfunction of outdoor unit

F5

Malfunction of coil pipe inlet sensor of outdoor unit

F6

Malfunction of coil pipe intermediate sensor of outdoor unit

F7

Malfunction of coil pipe outlet sensor of outdoor unit

F8

0DOIXQFWLRQRIGLVFKDUJHWHPSHUDWXUHVHQVRU¿[HG

F9

Malfunction of discharge temperature sensor 2 (digital)

FA

0DOIXQFWLRQRIRLOWHPSHUDWXUHVHQVRU¿[HG

Fb

Malfunction of oil temperature sensor 2 (digital)

Fc

High pressure sensor malfunction

Fd

Low pressure sensor malfunction

H6

PG Motor Stalling Protection

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49
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51
52
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Summary of Contents for GMV-PD100W/NAB-K

Page 1: ...DCINVERTERMULTIVRF SERVICE MANUAL T1 R410A 50Hz GC201112 CENTRAL AIR CONDITIONERS...

Page 2: ...Z63351F Z63151F 17 4 2 Wired Controller XK02 19 5 REGIONAL CONTROLLER 23 5 1 Function 23 5 2 Operation View 24 5 3 Display View 25 5 4 Connection Between Controller and Unit 26 6 SMART ZONE CONTROLLE...

Page 3: ...5 5 INSTALLATION OF REFRIGERANT PIPING 66 5 1 Flow Chart of Installation 66 5 2 Three Principles of Refrigerant Piping Installation 67 5 3 Installation of Metal Embedded Pipe 67 5 4 Installation of Ca...

Page 4: ...e middle and tube exit sensor error with room sensor tube inlet tube middle and tube exit sensor and exhaust casing top sensor error with the compressor bottom sensor 104 2 8 No energization to the un...

Page 5: ...1 DC Inverter Multi VRF Service Manual PRODUCT QSPEVDU...

Page 6: ...051 220 240V 50Hz GMV Pd140W NaB M CN850W0150 47768 52545 380 415V 3N 50Hz GMV Pd160W NaB M CN850W0140 54592 60051 380 415V 3N 50Hz 2 NOMENCLATURE GMV L Pd 120 W Na B K 1 2 3 4 5 6 7 8 9 NO Descriptio...

Page 7: ...Select Thermo Sensor Hot Start Timer Selector For Easy Construction and Maintenance Fresh Return air inlet Directly from The Unit Drain Pump Long Life Filter Ultra Long life Filter Option Mold Resista...

Page 8: ...wer Lines mm2 N 4 3 4 3 6 3 6 3 Compressor type DC inverter dual rotor type DC inverter dual rotor type DC inverter dual rotor type DC inverter dual rotor type Moisture protection IP24 IP24 IP24 IP24...

Page 9: ...pe Moisture protection IP24 IP24 Climate Type T1 T1 Connection Pipes Gas Pipe mm Inch 5 8 3 4 Liquid Pipe mm Inch 3 8 3 8 Connection Method Flare Connection Flare Connection Dimensions of Unit Width m...

Page 10: ...r Electronic expansion valve Capillary Electronic expansion valve Heat exchanger with centrifugal fan Indoor side Stop valve cooling heating Compressor 1 way valve Outdoor side Oil separator Capillary...

Page 11: ...7 DC Inverter Multi VRF Service Manual CONTROL DPOUSPM...

Page 12: ...t Stop Is The Protecting Is The Start Indicating Display The Last Setting s Of Air Start Display Flickering Abnormality Code Display Press The Start Stop Switch Start Indicating Light ON Air Volume Se...

Page 13: ...ere Is Not There Is Yes No Temperature Adjustment In The Process Of Preventing Restart Operation 3 Minutes Guide Louver Cooling Operation Guide Louvers Swing Fan Motor Operation Electronic Expansion V...

Page 14: ...ng Restart Operation 3 Minutes In The Operation Of Defrosting Temperature Adjustment Fan Motor As Per Set Air Supply Speed In The Process Of Preventing Cold Air Electronic Expansion Valve Capacity Con...

Page 15: ...state i A Rated capacity of indoor unit in OFF state i A 6HWWLQJ WHPSHUDWXUH FRUUHFWLRQ RI LQGRRU DQG RXWGRRU DPELHQW WHPSHUDWXUH i B DSDFLW FRPSHQVDWLRQ XQGHU KHDWLQJ ZKHQ LQGRRU XQLW LQ 2 VWDWH 2 Co...

Page 16: ...ation Conversion controller 4 way valve Fan ODU EXV IDU EXV 0 Step 180 s Initialization 250 step Initialization 300 step When the high and low pressure is higher than or equal to 3kg cm2G energize the...

Page 17: ...speed after 3 minutes Pressure section Absolute pressure value for discharge P 37 37 P 48 3 Heating Turn up one grade Remain Turn down one grade 4 Defrosting Function Defrosting Start Conditions Keep...

Page 18: ...ion Compressor frequency 4 way valve Outdoor fan Electronic expansion valve Inside electronic expansion valve Indoor fan Gas by pass fx Px Px 40HZ 40HZ 70HZ ON OFF ON ON OFF High fan speed 580P 300P O...

Page 19: ...1 Press the ON OFF button after the unit is energized then the unit starts operating 2 Press MODE button to choose the desired operation mode 3 Press FAN button to set the fan speed 4 Press button to...

Page 20: ...16 DC Inverter Multi VRF Service Manual DPOUSPM 3 2 Wireless Remote Controller YB1FA optional Operation Mode Display AUTO COOL DRY FAN HEAT Sleep Mode Display Temperature Type Display...

Page 21: ...351F Z60151F Various Components of Wired Remote Controller 1 Operating mode display Cool Dry Fan Heat 9 On Off button 2 Sleep mode display 10 Timer button 3 Environmental temp display Malfunction disp...

Page 22: ...mode display 10 Timer button 3 Environmental temp display Malfunction display 11 Swing button 4 Fan control display automatic high media low 12 Swing display 5 Set Temp display 13 Fan control button...

Page 23: ...tallation with power on Get one end of the 4 core communication cable put it through the rectangular hole on the base board on the wire remote controller ROG WKH EDVH ERDUG RI FRQWUROOHU RQ WKH ZDOO W...

Page 24: ...low or auto fan speed of the indoor unit Twinkle It blinks under on state of the unit without operation of any button F Temperature Ambient preset temperature value Timing Timing state SHIELD SHIELD...

Page 25: ...of the unit will be displayed on the wired controller for the cooling only unit while will be displayed on the wired controller for the cooling and heating unit 2 6 Upon startup of the unit without ma...

Page 26: ...ion under the guidance of Fig 4 2 3 Cut off power supply before install the electrical components it is forbidden to carry out the installation with power on Get one end of the 4 core communication ca...

Page 27: ...ts control is subject to that of the long distance monitor In the same group one of the region controllers can be used as region monitoring controller and matches one or more region wired controller w...

Page 28: ...N OFF of the indoor unit 2MODE and 7 ON OFF Lock Under single central control press MODE and ON OFF buttons simultaneously to start stop the lock of operation to buttons of wired controller for select...

Page 29: ...d timer time During timer inquiry integer of setting time of timer is displayed During timer setting integer of setting time of timer is displayed Set temp value is displayed when the unit is not duri...

Page 30: ...he indoor unit into region controller wiring terminal CN1 or CN2 and then connect the other wiring terminal CN2 or CN1 with the main board of indoor unit If there is no wired controller with indoor un...

Page 31: ...ndoor unit and display it by LCD Controlled items are mode timer fan speed temperature of a single unit centralized setting and shield etc 6 2 Operation View 1 17 2 3 4 5 6 9 7 8 10 11 12 13 14 15 16...

Page 32: ...7 All on off It is used to start stop all indoor units 6 3 Display View 1 2 3 4 5 7 9 6 8 10 Fig 6 3 No Name Description 1 Fan speed It displays the fan speed of the indoor unit high medium low and au...

Page 33: ...r unit which it connects can t exceed 16 sets 6 4 2 Relationship of simple centralized controller remote monitoring and centralized controller Communication Module Communication Module Max 16 Central...

Page 34: ...20 15 5 5 61 Fig 6 5 1 Installation Dimensions Diagram 6 5 1 2 Interfaces See Fig 6 5 2 for the interfaces of the display board and see Fig 6 5 3 for the interfaces of the power supply module GND 9 8V...

Page 35: ...of the indoor unit c Preparation and connection of the communication line for the duct type unit 1 The communication line for the duct type unit is the two core line provided by Gree one end is the t...

Page 36: ...32 DC Inverter Multi VRF Service Manual DPOUSPM Fig 6 5 5 Concealed Cable Installation 2 up down wiring Fig 6 5 6 Installation Diagram...

Page 37: ...ill not be saved See Fig 6 5 7 for the debugging operation Fig 6 5 7 shows the indoor unit 1 and indoor unit 2 both of which are connected with the port COM2 The address of one is 01 and the other is...

Page 38: ...Q EH E heater protection F0 Ambient temperature sensor error of the indoor unit F1 Error of coil pipe inlet sensor of the indoor unit F2 Error of coil pipe intermediate sensor of the indoor unit F3 Er...

Page 39: ...mer On Off time by central single or select control Both Timer On time and Timer Off time can be set at the same time and it is available to set the timer to which day among the 7 days from Sunday to...

Page 40: ...rol mode press this button after setting state of indoor unit control to indoor unit would be conducted by corresponding control mode 10 GROUP Press button under checking state to begin information ch...

Page 41: ...displayed 9 System time Displays present time format is Y M D H M and week 10 Timer setting Timer On Off on when Timer On Off is set to present indoor unit 11 Pre set temperature Displays value of pre...

Page 42: ...parameters of indoor units from long distance Single group center weekly timer is to set TIMER ON OFF of the air conditioner from long distance Clock setting is to set week hour and minute and let th...

Page 43: ...ng to cancel the setting For example press CANCEL button when CENTER CONTROL has been set the state will go back to slection of control method 10 UP DOWN LEFT RIGHT For direction indication For exampl...

Page 44: ...rature display 7 SHIELD All terperature mode on off shield from long distane 8 Timer setting display Weekly timer display 9 PROCESSING Displayed during sending out control command 10 GROUP NO Group No...

Page 45: ...cation wire Make the communication wire through the wire hole of the electric box cover and insert it into the communication port Make the Power cord through the other wire hole on the electric box co...

Page 46: ...HG FRQWUROOHU LQWR WZR SDUWV IURP WKH EXFNOH DV VKRZQ LQ WKH IROOLZQJ JXUH upper cabinet and lower cabinet Lower cabinet Upper cabinet Buckle Fig 7 2 4 6 RQQHFW WKH HOHFWULF ER FRYHU DQG ORZHU FDELQHW...

Page 47: ...6 1 Skecth map of connection between centralized controller and communication module Note 1 Communication module s address can be set from 1 to 64 In order to avoid communication malfunction addresses...

Page 48: ...nication 7 2 7 Debugging In order to ensure normal operation of the centralized controller the address of communication module shall be set after installation work Refer to Communcation Module Instruc...

Page 49: ...ommunication module check if the setting is correct through the region no on the centralized controller For example the address is set to 01 the centralized shall display region no 01 If the region no...

Page 50: ...ge temperature protection of compressor E5 Overcurrent protection overload protection of compressor drive malfunction E6 Communication malfunction E7 0RGHV FRQ LFW E8 Indoor fan motor protection E9 DW...

Page 51: ...0 1 1 0 0 0 0 12 0 0 1 1 0 1 0 0 44 1 0 1 1 0 0 0 0 13 1 0 1 1 0 1 0 0 45 0 1 1 1 0 0 0 0 14 0 1 1 1 0 1 0 0 46 1 1 1 1 0 0 0 0 15 1 1 1 1 0 1 0 0 47 0 0 0 0 1 0 0 0 16 0 0 0 0 1 1 0 0 48 1 0 0 0 1 0...

Page 52: ...anagement and maintenance So this long distance monitoring system combining electronic communication and computer technologies is developed to collect the running state of the units and to monitor and...

Page 53: ...line A and line B Crystal head crystal head buckle is downwards 8 2 2 Wiring Diagram Description of above communication cables Cable Description D1 crystal head and the other end is XH 4 core pin conn...

Page 54: ...1 R232 R485 Optoelectronic Isolated Converter standard parts 1 Function Introduction R232 R485 optoelectronic Isolated converter is used to convert the signal 232 of PC COM and signal of bus 485 2 Dim...

Page 55: ...nstalled for independent power supply 3RZHU VXSSO VSHFL FDWLRQ a 9 P 8 3 2 Optoelectronic Isolated Repeater optional parts 1 Function Introduction Optoelectronic Isolated repeater is mainly used to co...

Page 56: ...socket must be installed for independent power supply a 9 P 3RZHU VXSSO VSHFL FDWLRQ a 9 P 8 3 3 Communication Module standard parts 1 Function Introduction Communication module is used for conversion...

Page 57: ...sure the specification of power adapter to avoid malfunction or damage to the communication module Ensure unique DIP address of each communication module in the project to avoid malfunction Ensure com...

Page 58: ...esigned according to quantity arrangement and put position of the communication modules before make of it Independent power supply for each communication module is needed so enough 220v AC sockets sho...

Page 59: ...ngs The AC will run when the customer plugs in the card and automatically stop when he plugs out the card which ensures unit off after leaving of persons and saves energy Fig 1 is about simple sketch...

Page 60: ...ace of it connects with the mainboard 9 4 Products Parameters Model MK03 gate controller Working Voltage AC 220 240V 50HZ or DC 5V 24V Power 1W Working temperature 10 48 9 5 Installation of Detection...

Page 61: ...ottom plate of the detection control board on the wall and then make it and front panel of detection control board together W ODVW WKH ERWWRP SODWH DQG IURQW SDQHO RI GHWHFWLRQ FRQWURO ERDUG WRJHWKHU...

Page 62: ...58 DC Inverter Multi VRF Service Manual INSTALLATION...

Page 63: ...ur dealer If no proper measures it might cause human suffocation in case of refrigerant leakage Please install at a position that is strong enough to support the weight of machine If the installing po...

Page 64: ...The centralized controller and communication module shall be installed free from the source of interference Power cord 7KH SRZHU FDEOH PXVW PHHW WKH VSHFL FDWLRQV The indoor units under the same syste...

Page 65: ...HVVXUH IRU KRXUV FHSW IRU WKH LQ XHQFH E WHPSHUDWXUH it is deemed acceptable if pressure drop is within 0 02MPa With the temperature change by 1 the pressure will change by approx 0 01MPa Vacuuming Es...

Page 66: ...wer cord Install air duct Install remote monitoring control Connect communication cable Weld Purge and leak test under pressure Heat insulation Connect indoor unit and outdoor unit Connect power cord...

Page 67: ...ted by the wastes or oil mist To meet the noise and vibration requirements the outdoor unit shall be installed by using rubber damping pad or spring damper The installing dimension shall comply with t...

Page 68: ...l 3 3 Dimensions Data Appearance of GMV L Pd100W NaB K GMV L Pd 120W NaB K GMV L Pd 140W NaB K GMV L Pd 160W NaB K GMV Pd 140W NaB M GMV Pd 160W NaB M 950 572 1250 378 340 3 4 Installation space requi...

Page 69: ...between indoor unit and outdoor unit 10m 4 3 Size of Connection Pipe 4 3 1 The size of the pipe main pipe from the outdoor unit to the 1st manifold is same as the size of outdoor pipe Size of Outdoor...

Page 70: ...Air pipe Liquid pipe 22 25 28 type 32 36 40 45 50 type 40 45 50 type 56 63 71 80 90 100 112 125 140 type Note When the capacity of indoor unit is less than 5KW if the distance from the nearest manifol...

Page 71: ...s is quick and correct Advance Installation of Metal Embedded Parts Please select according to local codes Subsequent Installation of Expansion Bolts In case that the metal embedded parts cannot be us...

Page 72: ...t To avoid the invasion of moisture or wastes a support higher than the ground must be built by using woods Care of pipe end during construction The pipe ends must be well cared during construction Ac...

Page 73: ...e of such tools once will make all works scrapped It is useless no matter how good the quality of other works It is best that all operators shall have one pipe cutter and at least one pipe cutter of b...

Page 74: ...HV PP PP Advantage Decrease the weld joint thus reduce the possibility of leakage and oxidization For example It can decrease the weld by 8 spots Please act now to improve the quality 1R MRLQW LV UHTX...

Page 75: ...pe might be deformed even if it is not bent Correct section Bend section Section Inner side wrinkled and deformed 5 5 6 Flaring 7KH DULQJ UHIHUV WR H SDQVLRQ RI SLSH RSHQLQJ 7KH FRSSHU SLSH LV LQVHUWH...

Page 76: ...pipe A B D Outer diameter of pipe D mm Minimum depth of penetration B mm Clearance between pipes A D 6 0 05 0 21 7 8 0 05 0 27 10 12 0 05 0 35 14 If the mounting clearance is too large the diameter of...

Page 77: ...branch connector please use the pipe cutter to cut from the middle of different connection pipes and remove the burrs Then insert the copper pipe to appropriate depth The branch pipes from Gree are a...

Page 78: ...nly shall be indicated j An application is necessary for use of open flame and shall be reviewed by on site safety officer for approval N QVWUXFWLRQV JLYHQ E UH DXWKRULWLHV VKDOO EH DFFHSWHG LQ DFFRUG...

Page 79: ...on 5 7 4 Operation order Basic procedures for welding Assemble copper pipes Cleaning Check whether clearance is proper Fill nitrogen 2 N Itrogen pressure 0 05 0 3Mpa Welding flux Acknowledge welding f...

Page 80: ...QJ GLI FXOW DQG SURQH WR SRUHV Nitrogen charge pipe Copper pipe Places requiring protection during welding Copper pipe Vent port Nitrogen N2 d Welding heating Notes UD H ZHOGLQJ LV DPH KDUG EUD H ZHOG...

Page 81: ...such as over burning welding blockage crack rough surface of welding seam and burning through Welding seam should be free from defects such as pore slag inclusion XQGHU OO URVLQ MRLQW DQG RYHUODS Wel...

Page 82: ...ections of the piping between indoor unit and outdoor unit 5 8 2 Cleaning steps a Mount a pressure gauge on nitrogen cylinder Nitrogen bottle Outdoor side Liquid pipe Air pipe The opening of the pipe...

Page 83: ...24 hours Note During pressure maintaining after nitrogen is filled the pressure gauge shall not be dismantled because activities of dismantling or mounting pressure gauge would affect pressure change...

Page 84: ...a The pressure meter range of R410A system should be more than 4 5MPa b Record the pressure ambient temperature and testing hours F 3UHVVXUH PRGL FDWLRQ ZKHQ WKH WHPSHUDWXUH FKDQJHV IRU the pressure w...

Page 85: ...piping to obtain vacuum state Vacuum is dry capable to remove moisture in the system Under atmospheric pressure the boiling point of water is 100 But with increased vacuum degree created by vacuum pum...

Page 86: ...uge pressure 1kgf cm2 If the vacuum level reaches 0 1MPa gauge pressure or lower the vacuuming process is then ended Stop the vacuum pump and place still for 1 hour Then check the vacuum level for any...

Page 87: ...ched c Observe electronic balance or spring balance When required amount is reached the valve shall be closed very quickly and then source valve on the refrigerant valve shall be shut off d The amount...

Page 88: ...ing of horizontal pipe Main pipe Main pipe Main pipe 6 2 7 Do not tie the condensate pipe and refrigerant pipe together 6 2 8 To ensure smooth drainage of condensate a vent hole shall be set at the hi...

Page 89: ...ge pipe Drainage hose The auxiliary drainage pipe must be thermally insulated Thermal insulation of condensate pipe Pipe cover 7KH ORQJ GUDLQDJH SLSH PD EH HG E XVLQJ KDQJHU EROWV WKXV WR HQVXUH D JUD...

Page 90: ...one water trap for each unit Installation of water trap shall consider easy cleaning in the future Joint Joint Indoor unit Indoor unit 6 2 17 Connection of drainage branch pipe to the standpipe or ho...

Page 91: ...W 6HDO WKH RXWOHW RI GUDLQDJH SLSH ZLWK DGKHVLYH WDSH RU SOXJ 7KHQ OO ZDWHU LQWR WKH GUDLQDJH SLSH V VWHP IRUP LQGRRU XQLW VLGH 6WRS OOLQJ DIWHU HQVXULQJ WKDW DOO WKH GUDLQDJH SLSHV DUH OOHG ZLWK ZDWH...

Page 92: ...ly with the national standard GB17790 Reliable earthing terminal must be provided on the user s power supply Never connect the earthing wire to the following places Water pipe Gas pipe Sewage pipe Oth...

Page 93: ...ommunication Line 7 4 Dial up Gree DC Multi VRF unit is provided with three dial up i e function dial up address dial up and capacity dial up ou may adjust the function dial up to set the control mode...

Page 94: ...LGHG E WKH VODYH LQGRRU XQLW WKDW LV UVWO VWDUWHG KHQ RQO RQH LQGRRU XQLW LV VHW DV PDVWHU QR PDWWHU LI WKH PDVWHU LQGRRU XQLW LV UVWO VWDUWHG RU QRW WKH VODYH LQGRRU XQLW ZLOO JLYH RXW PRGH FRQ LFW H...

Page 95: ...ti VRF Service Manual IWHU GLDOLQJ XS SOHDVH PDUN WKH DGGUHVV FRGH RI WKH XQLW Address code S1 Functional dial switch S7 Capacity code S2 Mainboard of 5 bit functional dial up Functional dial switch S...

Page 96: ...ial the address code of wired controller to the position same as the address code on corresponding indoor unit The address code of wired controller is located on the back of wired controller Below is...

Page 97: ...of indoor units The 4 bit DIP switch marked with capacity below used for setting the capacity of indoor units is factory set before shipment of indoor unit while it is covered by sealant so that it c...

Page 98: ...94 DC Inverter Multi VRF Service Manual 0 1 1 0 50 0 1 1 1 60 1 0 0 0 224 1 0 0 1 70 1 0 1 0 80 1 0 1 1 90 1 1 0 0 100 1 1 0 1 112 1 1 1 0 140 1 1 1 1 280...

Page 99: ...95 DC Inverter Multi VRF Service Manual MAINTENANCE...

Page 100: ...e The drive board of variable frequency compressor is incurred to error For details on the error message please refer to the Display Code on Digital Tube of Outdoor Unit E6 Communication error Communi...

Page 101: ...e temperature sensor is disconnected If yes alarm will be sent otherwise no processing will be made If the controller of outdoor unit detects failure of outdoor sensor under open circuit short circuit...

Page 102: ...can work normally Check if the indoor outdoor filters or radiating fins are dirty or blocked The system pipe is blocked Refer to the Repair and Maintenance Engage the valve body with the coil Refer to...

Page 103: ...an work normally Check if the indoor outdoor filters or radiating fins are dirty or blocked The system pipe is blocked Refer to the Repair and Maintenance Engage the valve body with the coil Refer to...

Page 104: ...y When the exhaust temperature of compressor is higher than KHWKHU WKH RSHQQHVV RI FRUUHVSRQGLQJ indoor unit electronic expansion valve is increased Check if the electronic expansion valve is correct...

Page 105: ...is normal Refer to high voltage protection If the voltage is normal Contact the power supply company The communication resumes to normal Upon AC inverter startup overcurrent the indicator will display...

Page 106: ...Yes Yes Yes No No No Inspect match of indoor unit Within 135 Adjust the indoor unit to suitable capacity Inspect charging volume Adjust it to be within the permitted range Over charge Voltage of DC m...

Page 107: ...indoor and outdoor unit is connected c orrectly Check the orientation of plug and socket Check if the two ends of communication line are mounted with magnetic ring Please mount the included magnetic...

Page 108: ...inage pipe is unblocked and if the water flow is smooth If the drainage pump is running Check the drainage pump 2 7 Error with room sensor tube inlet tube middle and tube exit sensor error with room s...

Page 109: ...No Deenergizing of unit and mainboard Is power supply of wiring board L and N 220V Is air switch turned ON Is input of filter board energizing Is output of filter board energizing Replace mainboard I...

Page 110: ...circuit Restart the unit circuit work work 1 If it is affected by damp find out the reason and take some precautionary measures After drying the mainboard brush it with damp proof gumwater 2 If it is...

Page 111: ...d by damp find out the reason and take some precautionary measures After drying the mainboard brush it with damp proof gum water 2 If it is polluted find out the reason and protect it from dust If the...

Page 112: ...mainboard The system is abnormal Check the compressor wiring and winding for short circuit Mount the electric switch according to the capacity requirements It is recorded and reflected Leakage current...

Page 113: ...or is dirty or blocked the radiating will be worse It is recorded and reflected Is radiator dirty or blocked No Is module worse If the module is loose its temperature will be too high which may burn t...

Page 114: ...is recorded and reflected Does it occur during running of compressor How many times does it occur within 1 hour It is caused by interference Inspect wiring or interference source Take some actions o...

Page 115: ...er line while thin line represents the control line 3 2 Introduction of Major Electrical Elements Name Photo Function Introduction Filter board It used for GMV Pd100W NaB K GMV Pd120W NaB K GMV Pd140W...

Page 116: ...he DC bus voltage is applied to different stator windings of the compressor in different time section and the current is hence generated on the stator Meanwhile PDJQHWLF HOG LV LQGXFHG RQ WKH rotor wi...

Page 117: ...ervice Manual 3 3 Wiring diadram NOTE This drawing is just for reference please always refer to the electric wiring stuck to the unit for actual wiring GMV Pd100W NaB K GMV Pd120W NaB K GMV Pd140W NaB...

Page 118: ...114 DC Inverter Multi VRF Service Manual GMV Pd140W NaB M GMV Pd160W NaB M...

Page 119: ...using a screwdriver 2 Raise up the top cover upward DQG SODFH LW RQ WKH RRU KRUL RQWDOO 2 Dismount the front panel 5HPRYH WKH HG VFUHZV RQ WKH front panel by using a screwdriver 2 Remove the front pan...

Page 120: ...using a screwdriver 2 Remove the grille 2 Disassemble the outer casing 5HPRYH WKH HG VFUHZV RQ RXWHU casing by using a screwdriver 2 Remove the outer casing and SODFH LW RQ WKH RRU KRUL RQWDOO 3 Disa...

Page 121: ...5 Assemble the new motor 5HSODFH D QHZ PRWRU DQG WKH screws tightly by using a spanner 2 Connect the power cord to the motor 6 Assemble the whole unit Assemble the disassembled main parts as per the r...

Page 122: ...e power cable color and corresponding terminal thus to avoid error during reinstallation RRVHQ WKH QXWV LQJ WKH compressor onto foundation Heat by welding and pull the exhaust suction pipe out LUVWO K...

Page 123: ...the compressor Note During welding take care not WR OHW WKH DPH EXUQ RWKHU HOHPHQWV 7 Connect the power cables of compressor correctly Mark the power cable colors and corresponding terminal codes dur...

Page 124: ...WKH IRXU MRLQWV RQ ZD valve sub assembly by welding then pull out the connection pipe Note During welding take care not WR OHW WKH DPH EXUQ RWKHU HOHPHQWV 3 Replace the 4 way valve and weld the 4 way...

Page 125: ...en the two points Remove the coil of electronic expansion valve Loosen the connection pipe of electronic expansion valve by welding then pull out the connection pipe Note During welding take care not...

Page 126: ...Loosen the four points RRVHQ WKH WKUHH MRLQWV RQ RLO separator sub assembly by welding then pull out the connection pipe Note During welding take care not WR OHW WKH DPH EXUQ RWKHU HOHPHQWV 2 Loosen...

Page 127: ...Multi VRF Service Manual 5 Weld the oil separator to the connection pipe Weld the three joints HOG WKH WKUHH MRLQWV RQ RLO separator sub assembly Note During welding take care not WR OHW WKH DPH EXUQ...

Page 128: ...50W0022 Part List No Part Name Code Qty 1 Top Cover 01255013P 1 2 Electric Box Cover 01424235 1 3 Electric Box Assy 01395174 1 4 Motor Support Sub Assy 01804113 1 5 Clapboard Sub Assy 2 01244136 1 6 C...

Page 129: ...04104154 1 31 StrainerA 07210022 1 32 High pressure Accumulator 07228739 1 33 Cut off Valve 07103030 1 34 Cut off Valve 07130209 1 35 Condenser Assy 0112415801 1 36 Strainer 07212121 2 37 OHFWULF H SD...

Page 130: ...Strainer 07210037 1 21 Clapboard Sub Assy 1 01244111 1 22 RPSUHVVRU DQG WWLQJV 00205224 1 23 electrical heater 765152123 1 24 Chassis Sub assy 01194706P 1 25 Inhalation Tube Sub Assy 04674170 1 26 Co...

Page 131: ...ctor 43138004 1 55 Drainage Plug 06813401 3 56 Drainage Connecter 06123401 1 GMV Pd140W NaB M GMV Pd160W NaB M GMV Pd140W NaB M for CN850W0032 GMV Pd160W NaB M for CN850W0140 Part List No Part Name Co...

Page 132: ...ressure Protect Switch 4602000902 1 29 Oil Separator 07228302 1 30 Capillary Sub Assy 04104154 1 31 StrainerA 07210022 1 32 High pressure Accumulator 07228739 1 33 Cut off Valve 07130212 1 34 Cut off...

Page 133: ...JF00300208...

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