Gree Ultra Heat GMV Multi VRF Series Owner'S Manual Download Page 62

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Ultra Heat GMV Multi VRF

Status:

Error Code

Content

Error Code

Content

Unit waiting for debugging

Shielding status

Refrigerant recovery operation of after-sales

SE operation setting of system

Defrosting

Compulsory defrosting

Oil-return

Limit setting for max. capacity/output

capacity

Heat pump function setting

Compulsory excursion of engineering code

of IDU

Quiet mode setting

Inquiry of malfunction

Vacuum pump mode

Inquiry of parameters

Heating

Inquiry of project code of IDU

Cooling

Check quantity of IDU on line

Charge refrigerant automatically

Heat pump unit

Charge refrigerant manually

Heating only unit

Fan

Cooling only unit

Cleaning reminding of filter

Negsative code

Debugging confirmation when starting up

the unit

Fan model

Long-distance emergency stop

High temperature prevention when heating

Emergency stop of operation

Eliminate the long-distance shielding

command of IDU

Limit operation

Bar code inquiry

Child lock status

Length modification of connection pipe of

ODU

Note: For detailed malfunction and maintenance, please refer to the engineering debugging and

after-sales maintenance manual.

8 Maintenance and Care

Regular check, Maintenance and care should be performed every six months by professional

personnel, which will prolong the unit life span. Disconnect the power supply before cleaning and

maintenance.

8.1 Outdoor Heat Exchanger

Outdoor heat exchanger is required to be cleaned once every six months. Use vacuum cleaner with

nylon brush to clean up dust and sundries on the surface of heat exchanger. Blow away dust by

compressed air if it is available. Never use water to wash the heat exchanger.

8.2 Drain Pipe

Regularly check if the drain pipe is clogged in order to drain condensate smoothly.

8.3 Notice before Seasonal Use

(1) Check if the inlet/outlet of the indoor/outdoor unit is clogged.

(2) Check if the ground wire is earthed reliably.

(3) Check if battery of remote wireless controller has been replaced.

Summary of Contents for Ultra Heat GMV Multi VRF Series

Page 1: ...ther notice GREE reserves the right to interpret this manual which will be subject to any change due to product Ultra Heat GMV Multi VRF R410ASystems Outdoor Unit Air Conditioners GMV V72W A F U GMV V96W A F U Thank you for choosing Air Conditioners please read this owner s manual carefully before operation and GREE Electric Appliances Inc of Zhuhai reserves the final right to interpret this manua...

Page 2: ...of malfunction and operation failure please examine the following items and contact our authorized service centers as soon as possible 1 Nameplate model cooling capacity product code ex factory date 2 Malfunction status detail description of conditions before and after malfunction occurs 7 All units have been strictly tested and proved to be qualified before ex factory To avoid unit damage or even...

Page 3: ...cturer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair maintain the unit without abiding by instruction manual or related regulations 6 After verification the problem or dispute is caused by the quality specification or performance of parts and components that...

Page 4: ...14 4 3 Installation of the Connection Pipe 20 4 4 Air Purging and Refrigerant Charge 24 4 5 Electric Wiring 27 4 6 System Communication 30 4 7 Connection Method and Steps for System Communication 34 4 8 External Electrical Wiring Diagram 39 5 Check Items after Installation and Trial Run 43 5 1 Check Items after Installation 43 5 2 Trial Run 43 6 Common Malfunctions and Troubleshooting 53 7 Error I...

Page 5: ...ngers or objects into air outlet inlet grille 10 Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas oil supplied heating equipment is used 11 Never start up or shut off the air conditioner by means of directly plug or unplug the power cord 12 Turn off the unit after it runs at least five minutes otherwise it will influence oil return of the compress...

Page 6: ...ant gas meets fire 26 Volatile liquid such as diluent or gas will damage the unit appearance Only use soft cloth with a little neutral detergent to clean the outer casing of unit 27 If anything abnormal happens such as burning smell please power off the unit and cut off the main power supply and then immediately contact Gree appointed service center If abnormality keeps going the unit might be dam...

Page 7: ...K Btu to 192K Btu which can be widely used in working area and especially applicable to the place with variable load change Gree air conditioner is absolutely your best choice 2 1 Names of Main Parts Fig 1 NO Name Fan Motor Electric Box Assembly Valve interface Communication code through hole Power cord through hole 2 2 Combinations of Outdoor Units Single Model GMV V192WM A F U Combined Model GMV...

Page 8: ...art to work according to the capacity when all IDUs stop ODU will also stop 2 4 The Range of Production Working Temperature Cooling operation Ambient temperature 10ºC 14ºF 52ºC 125 6ºF Heating operation Ambient temperature 30ºC 22ºF 24ºC 75 2ºF When the indoor units are all VRF air processor the unit operating range is as follows Cooling operation Ambient temperature 16ºC 60 8ºF 45ºC 113ºF Heating...

Page 9: ... 2 Installation Site WARNING Install the unit at a place where is adequate to withstand the weight of the unit and make sure the unit would not shake or fall off Never expose the unit under direct sunshine and rainfall Install the unit at a place where is against dust typhoon and earthquake Try to keep the unit away from combustible inflammable and corrosive gas or exhaust gas Leave some space for...

Page 10: ...the unit keep the distance between the unit top and the wall at least 3000mm 118 1 8in 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 at least 1500mm 59in or above When space is limited within 1500mm 59in or the unit is not set in an open space air outlet pipe is required to be installed in order to ...

Page 11: ...e dimension for multiple module unit For keeping good ventilation make sure there are no obstructions above the unit When the unit is located at a half open space front and left right side is open install the unit as per the same or opposite direction ...

Page 12: ...Ultra Heat GMV Multi VRF 8 Fig 7 ...

Page 13: ...Ultra Heat GMV Multi VRF 9 Fig 8 3 2 4 Take seasonal wind into consideration when installing the outdoor unit 1 Anti monsoon installation requirements for unit not connecting exhaust duct Fig 9 ...

Page 14: ...Ultra Heat GMV Multi VRF 10 Fig 10 Fig 11 3 2 5 Take snow into consideration when installing the outdoor unit Fig 12 ...

Page 15: ...ts R410A Refrigeratn System Outer diameter mm inch Wall thickness mm Type Φ6 35 1 4 0 8 0 Φ9 52 3 8 0 8 0 Φ12 70 1 2 0 8 0 Φ15 9 5 8 1 0 0 Φ19 05 3 4 1 0 0 Φ22 2 7 8 1 2 1 2H Φ25 40 1 1 1 2 1 2H Φ28 60 9 8 1 2 1 2H Φ31 80 5 4 1 3 1 2H Φ34 90 11 8 1 3 1 2H Φ38 10 12 8 1 5 1 2H Φ41 30 13 8 1 5 1 2H Φ44 5 7 4 1 5 1 2H Φ51 4 7 4 1 5 1 2H Φ54 1 17 8 1 5 1 2H ...

Page 16: ...tion must be flat and have enough rigidity and strength to undertake the unit s weight during running The height of the foundation is 200mm to 300mm which is determined based on the size of the unit 2 Build a drainage ditch around the foundation to discharge the condensate water 3 If the air conditioner is installed on the roof check the intensity of the building and take waterproof measures 4 If ...

Page 17: ...Ultra Heat GMV Multi VRF 13 4 2 Physical Dimension of the Outdoor Unit and Mounting Hole Outline and physical dimension of GMV V72W A F U GMV V96W A F U Fig 14 ...

Page 18: ...nection pipe between indoor branchs Connection pipe between indoor branchs Connection pipe between indoor branch and indoor units Module1 Module2 Branch between outdoor units Fig 15 4 3 2 Schematic Diagram of Piping Sequence GMV V72W A F U GMV V96W A F U GMV V192WM A F U Fig 16 4 3 3 Allowable pipe length and drop height among indoor and outdoor units Y type branch joint is adopted to connect indo...

Page 19: ...Fitting Pipe Total length actual length of fitting pipe 1000 3280 3 4 L1 L2 L3 L4 L9 a b i j Length of farthest fitting pipe m feet Actual length 165 541 1 4 L1 L6 L7 L8 L9 j Equivalent length 190 623 1 4 Difference 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 40 131 1 4 L10 L11 Equivalent length from t...

Page 20: ...the pipe length from the first branch of IDU to the nearest IDU L10 L11 40m 131 1 4feet 2 When the outdoor unit is at upper side and height difference is more than 50m please consult company for the related technical requirement 3 When the maximum length of the main pipe from ODU to the first branch of IDU is 50m 164ft then adjust the pipe size Total rated capacity of ODU C Btu h Pipe between outd...

Page 21: ...ance between outdoor units exceeds 2m 6 1 2 feet U type oil trap should be added at low pressure gas pipe a 10m 32 7 8 feet b 10m 32 7 8 feet 4 3 5 Size requirement for branch pipe and piping 4 3 5 1 Connection sketch map of single module system Fig 20 a ...

Page 22: ...own as follows For single module L pipe between outdoor unit and the first indoor branch Basic module Pipe between outdoor unit and the first indoor branch Gas pipe mm inch Liquid pipe mm inch GMV V72W A F U Φ28 6 1 1 8 Φ12 7 1 2 GMV V96W A F U Φ28 6 1 1 8 Φ12 7 1 2 For multi module L pipe between the terminal outdoor branch and the first indoor branch Basic module Pipe between outdoor unit and th...

Page 23: ...l capacity of downstream indoor unit s Please refer to the following table R410A refrigerant system Total Capacity of the Downstream Indoor Unit X Btu h Model Y type Branch Pipe C 68000 FQ01A A 68000 C 102000 FQ01B A 102000 C 239000 FQ02 A 239000 C FQ03 A T type Branch Pipe C 136000 FQ014 H1 136000 C 232000 FQ018 H1 232000 C FQ018 H2 4 3 5 6 Piping size among upstream branches b e Total rated capa...

Page 24: ...ments for welding process Rosin joints and pin holes are not allowable 3 When laying the pipes be careful not to deform them The radius of bending parts should be more than 200mm 7 7 8inch The pipes cannot be repeatedly bent or stretched otherwise the material will get harden Do not bend or stretch the pipe over three times at the same position 4 Please use a torque wrench to connect union nut on ...

Page 25: ...old has several pipe sections with different pipe size which facilitates to match with various copper pipe Use pipe cutter to cut in the middle of the pipe section with different pipe size and deburr as well Y type manifold must be installed vertically or horizontally Fig 24 a 3 T type manifold must be installed horizontally with inclination ...

Page 26: ...oid misconnection 2 At the manifold inlet at least leave 500mm 19 11 16inch straight pipe section and for FQ04 manifold keep it at least 800mm 31 1 2inch Fig 25 a Fig 25 b 3 There must be three fixing point for both horizontal and vertical installation of Y type manifold Fixing point 1 100mm 4in on the main inlet manifold from the welding point Fixing point 2 200mm 7 7 8in on the main branched man...

Page 27: ... manifold so that the outlet pipes are horizontal at the lower side Fig 27 a Fig 27 b 5 Thermal insulation for pipeline 1 To avoid condensate or water leakage on connecting pipe the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive pipe for insulation from the air ...

Page 28: ...rcle should cover half of the former one Don t wrap the tape so tightly otherwise the insulation effect will be weakened 6 After wrapping the pipe adopt sealing material to completely fill the hole so as to prevent wind and rain from entering the room 4 4 4 Support and protection for pipeline 1 Support should be made for hanging connection pipe Distance between each support cannot be over 1m 39 3 ...

Page 29: ...d pipe length Added refrigerant quantity for each meter inch of liquid pipe Diameter of liquid pipe mm inch 28 6 1 1 8 25 4 1 22 2 7 8 19 05 3 4 15 9 5 8 12 7 1 2 9 52 3 8 6 35 1 4 kg m 0 680 0 520 0 350 0 250 0 170 0 110 0 054 0 022 OZ inch 0 61 0 47 0 31 0 22 0 15 0 10 0 05 0 02 2 Refrigerant charging amount B of every module Refrigerant charging amount B of every module kg lb Rated Capacity 100...

Page 30: ...ns on refrigerant leakage Personnel related to air conditioning engineering design and installation operators must abide by the safety requirement for preventing refrigerant leakage specified in local laws and regulations Ultra Heat GMV series VRF units adopt the R410A refrigerant which is nonflammable and nontoxic However the space for refrigerant leakage must be sufficient to ensure that the ref...

Page 31: ...RNING 1 Wiring should conform to national rules All the parts materials electric work should be in accordance with local codes 2 Rated voltage and exclusive power supply should be used 3 Power cord should be fixed soundly and reliable Never forcibly pull the power cord 4 Wire size of power cord should be large enough The damaged power cord and connecting wire should be replaced by exclusive cable ...

Page 32: ...nal standard 3 Copper core cable must be used 4 The above sectional area is suitable for a maximum distance of 15m 49 1 5feet If it s over 15m 49 1 5feet sectional area must be expanded to prevent overload current from burning the wire or causing fire hazard 5 Specification of circuit breaker is based on the working condition where the ambient temperature of circuit breaker is 40ºC 104 If working ...

Page 33: ...ord connection 1 Knock off the cross through opening that s used for leading the external power cord with the cross through rubber ring on the opening Then lead the cable through the opening Connect L1 L2 L3 of power cord and ground wire separately to the positions on wiring board for power supply that are marked with L1 L2 L3 and the ground screw nearby Knock off the cross through opening that s ...

Page 34: ...munication 4 7 1 Communication system include 1 Communication among outdoor basic modules 2 Communication between ODU and IDU 3 Communication among IDUs 4 Communication between IDU and wired controller 5 Connection between IDU and light board receiver ...

Page 35: ...agnetic interference the communication wire of IDU and wired controller must use shielded wire and the communication wire between IDU and IDU ODU must use shielded twisted pair 1 Select communication wire between IDU and wired controller Material type Total length of communication line between IDU unit and wired controller L m feet Wire size Remarks Light Ordinary polyvinyl chloride sheathed cord ...

Page 36: ... cord L 1000 3280 5 6 2 AWG18 1 If the wire diameter is enlarged to 2 AWG16 the total communication length can reach 1500m 4921 1 4feet 2 The cord shall be Circular cord the cores shall be twisted together 3 If unit is installed in places with intense magnetic field or strong interference it is necessary to use shielded wire Fig 36 NOTE All of the selected communication wire must be consistent wit...

Page 37: ... If a single communication wire is not long enough and needs to be connected the connected joint must be welded or pressure welded Do not simply twist the wires together 4 7 4 Communication address Auto addressing technology is adopted for Ultra Heat GMV IDU and ODU No need to set address Connection Screw Terminal Bend ...

Page 38: ...ect codes must be displaced Otherwise collision malfunction of the project codes will show For detail operation methods please refer to the Ultra Heat GMV Installation and Maintenance Manual 4 8 Connection Method and Steps for System Communication 4 8 1 Communication connection between IDU and ODU NOTICE The centralized controller can be installed when it is necessary Connection of communication f...

Page 39: ...n series The last IDU D1 D2 must be connected with the communication matched resistance supplied in the list of ODU spare parts The ODU D1 D2 must be connected with the communication matched resistance installed before factory 4 For modular outdoor units if there are multiple outdoor modules then the master unit must be the first outdoor module on the communication wire and should not connect with...

Page 40: ...system is shocking 8 For multi refrigeration systems when it is necessary to connect with a centralized controller the communication lines connecting with all the ODUs G1 G2 must be connected in series and the last refrigeration system master unit G1 G2 must be connected with the communication matched resistance supplied in the list of ODU spare parts 9 For multi refrigeration systems the address ...

Page 41: ...mode button to switch to setup of parameter values Then the parameter value will blink Press button or button to select code 02 And then press confirm cancel to finish setting Press confirm cancel to return to the previous display until you exit from the setup of parameter values Below are user s parameter settings Parameter code Parameter name Parameter scope Default value Remark P13 Set up addre...

Page 42: ... When light board remote receiver is used please use remote controller at the same time 4 8 4 Communication connection of central controlling units NOTICE The centralized controller can be installed when it is necessary Port connection G1 and G2 on the wiring board of master unit among each multi VRF system see below ...

Page 43: ...rcuit breaker for short circuit protection and exceptional overload protection In general circuit breaker is at OFF status 2 During operation all indoor units and outdoor units belonging to the same system must be kept energized status Otherwise the unit can t operate normally 4 9 1 External wiring diagram of a single unit ...

Page 44: ...ra Heat GMV Multi VRF 40 Fig 49 NOTICE Maximum number of IDU is based upon ODU capacity For details please refer to the introduction of units combination 4 9 2 External wiring diagram of modular connection ...

Page 45: ...Ultra Heat GMV Multi VRF 41 Fig 50 NOTICE Maximum number of ODU N and maximum number of IDU n are based upon the combination type of ODU For details please refer to the introduction of unit combination ...

Page 46: ...safe handling two metal parts are fixed at the feet of compressor before delivery shown as follows Fig 51 2 While installation please make sure the metal parts are taken down Then fasten the compressor fixed nuts again and re wrap the soundproof material Note if the unit is operating with the metal parts stay it may lead to compressor abnormal vibration even reduce the lifespan of the unit ...

Page 47: ...on malfunction might happen Has the communication line been connected correctly The unit cannot run normally Communication malfunction might happen Is the piping connection and valve status correct The unit cannot run normally The unit might be damaged Is the phase sequence of external power cord correct The unit cannot run normally Phase sequence error may happen Whether the engineering piping wo...

Page 48: ...according to the ambient temperature 1 When outdoor temperature is above 20ºC 68 F debugging shall be in cooling mode 2 When outdoor temperature is below 20ºC 68 F debugging shall be in heating mode 3 Before debugging confirm again whether the cut off valve of each basic module is fully turned on 4 During debugging front panel of the outdoor unit must be fully closed otherwise debugging accuracy w...

Page 49: ...y of IDU Next step will start automatically 05_Internal communication detection C2 Light Communication between master ODU and inverter compressor driver has error C0 Light Communication between master ODU and IDUs has error db Light 05 Light oC Light System detection is done Next step will start automatically 06_Detect outdoor components Error code Light System detects that outdoor components have...

Page 50: ... the project code of IDU with error 3s later d3 will be displayed For instance if no 100 IDU has d3 error then the LED1 will display circularly as below 01 2s later 00 2s later d3 5 2 2 2 Debugging operation mode Ultra Heat GMV multi VRF system has two debugging modes one is direct operation on main board of outdoor units while the other is PC operation via special software In PC software debuggin...

Page 51: ...art progress 01 If no error is detected system will display as below and then start next progress Debugging code Progress code Status code progress LED1 LED2 LED3 Code Display status code Display status Code Display status 01_Set up master unit db Light 01 Light oC Light If unit have some errors progress 01 will show the following errors Debugging Code Progress Code Status Code Meaning Progress LE...

Page 52: ...ep 9 In progress 04 the quantity of IDUs needs to be confirmed manually Main board will display Debugging code Progress code Status code Progress LED1 LED2 LED3 Code Display status Code Display status Code Display status 04_Confirm the quantity of IDUs db Light 04 Light Quantity of connected IDUs Blink If the quantity displayed is the same with actual quantity then press SW4 confirmation button on...

Page 53: ... 06_Detect outdoor components Error code Light System detects that outdoor components have error Elimination methods of above errors can be found in Troubleshooting Step 12 Progress 07 is Detect indoor components If no error is detected system will display as below and then start next progress Debugging code Progress code Status code Progress LED1 LED2 LED3 Code Display status Code Display status ...

Page 54: ... Status code Progress LED1 LED2 LED3 Code Display status Code Display status Code Display status 08_Confirm preheated compressor db Light 08 Light U0 Preheat time Blink Step 14 Progress 09 is Refrigerant judgments before startup If the refrigerant quantity inside the system meets the requirement of operation startup system will display as below and start next progress Debugging code Progress code ...

Page 55: ...levant display is as below Debugging code Progress code Status code Meaning progress LED1 LED2 LED3 Code Display status code Display status Code Display status 15_Cooling debugging db Light 15 Light UC Light Debugging is enabled in cooling mode debugging mode auto selected by system Error code Light ODU Error occurs during debugging in cooling mode XXXX Error code Light System detects error in ind...

Page 56: ...d repeat again Step 17 If there s no error during operation for about 30min system will automatically confirm that debugging is finished and then stop System resumes standby condition Step 18 After debugging is finished some functions can be set up according to project s actual needs For specific details please refer to System Functions Setup If no special requirements skip this step Step 19 Deliv...

Page 57: ...proper temperature setting Adjust setting at wireless remote controller or wired controller Fan speed is set too low Adjust setting at wireless remote controller or wired controller Wind direction is not correct Adjust setting at wireless remote controller or wired controller Door or windows are opened Close the door or windows Direct sunshine Draw curtain or louver Too many people in the room Too...

Page 58: ...ng sound is heard when unit is operating and after operating That s sound caused by expansion of panel and other parts due to temperature change The unit blows out duct When unit runs after no operation for a long period Dust in indoor unit is blew out The unit emits odor Operating The room odor absorbed by the unit is blew out again Indoor unit still runs after switch off After every indoor unit ...

Page 59: ... mode dE 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 Malfunctio...

Page 60: ...oard of compressor bH Clock of system is abnormal P1 Driving board of compressor operates abnormally bC Protection because the temperature sensor at the top of compressor 1 is loose P2 Voltage protection of driving board power of compressor bL Protection because the temperature sensor at the top of compressor 2 is loose P3 Reset protection of driving module of compressor bE Malfunction of inlet tu...

Page 61: ...nsistent U2 Wrong setting 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 pi...

Page 62: ... 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 For detailed malfunction and maintenance please refer to the engineering debugging and after sales maintenance manual 8 Maintenance and Care Regular check Maintenance and care should be performed every six months by pro...

Page 63: ...ement Purchase parts from Gree appointed service center or dealer if necessary Note During airtight and leakage test never mix oxygen ethyne and other dangerous gas into refrigeration circuit In case of hazard it s better to use nitrogen or refrigerant to accomplish such test 9 After sales Service In case the air conditioning unit you bought has any quality problem or you have any inquiry please c...

Page 64: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add West Jinji Rd Qianshan Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E mail gree gree com cn www gree com ...

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