Gree GMV-224WL/C-X Owner'S Manual Download

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Owner's Manual

Original Instructions

Commercial Air Conditioners

DC Inverter Multi VRF System

Models:
GMV-H224WL/A-X
GMV-H280WL/A-X
GMV-H335WL/A-X
GMV-224WL/C-X
GMV-280WL/C-X
GMV-335WL/C-X
GMV-280WL/C1-X
GMV-335WL/C1-X

Summary of Contents for GMV-224WL/C-X

Page 1: ...Manual Original Instructions Commercial Air Conditioners DC Inverter Multi VRF System Models GMV H224WL A X GMV H280WL A X GMV H335WL A X GMV 224WL C X GMV 280WL C X GMV 335WL C X GMV 280WL C1 X GMV 335WL C1 X ...

Page 2: ... model according to actual using environment otherwise it may impact the using convenience 4 This product has gone through strict inspection and operational test before leaving the factory In order to avoid damage due to improper disassembly and inspection which may impact the normal operation of unit please do not disassemble the unit by yourself You can contact with the special maintenance cente...

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: ... Unit and Mounting Hole 6 4 2 Connection Pipe 7 4 3 Installation of Connection Pipe 11 4 4 Vacuum Pumping Refrigerant Adding 16 4 5 Electric Wiring 17 5 Check Items after Installation and Test Operation 20 5 1 Check Items after Installation 20 5 2 Test Operation and Debugging 21 6 Common Malfunctions and Troubleshooting 26 7 Error Indication 28 8 Maintenance and Care 30 8 1 Outdoor Heat Exchanger ...

Page 5: ... of IEC 60335 2 40 2018 and must only be connected to other units that have been confirmed as complying to corresponding partial unit requirements of this international standard The electrical interface shall comply with electrical security requirement voltage shall be 380 415V 50 60Hz current shall be referred to the table of Selection of circuit breaker and power cord in Section 4 5 2 and safety...

Page 6: ...m Never plug in or unplug the power plug directly to turn on or turn off the air conditioner Once the air conditioner is turned on it can be turned off only after it has operated for 5min at least otherwise it will affect the oil return of compressor Do not allow children to operate this air conditioner Do not operate this air conditioner with wet hands The air conditioner can be cleaned only when...

Page 7: ...ion Install units according to national wiring codes If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard An all pole disconnection device which has at least 3mm clearances in all poles and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules Gree Electric Applianc...

Page 8: ...l start operation as per required capacity When all indoor units stop outdoor unit will be shut off 2 3 Operating Range Cooling Outdoor temperature 5 52 C Heating Outdoor temperature 20 27 C 3 Preparation before Installation NOTE Graphics here are only for reference Please refer to actual products Unspecified dimensions are all in mm 3 1 Standard Parts Please use the supplied standard parts as req...

Page 9: ...it can stand still and erect The installation position should withstand strong wind typhoon and earthquake The unit must be installed stably Please keep the unit away from inflammable explosive and corrosive gas or waste gas Make sure the location has space for heat exchange and maintenance so that unit can operate reliably with good ventilation ODU and IDU should stay as close as possible to shor...

Page 10: ...Graphics here are only for reference Please refer to actual products Unspecified dimensions are all in mm 4 1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension mm Fig 4 1 Unit mm Model A B C D E GMV H224WL A X 940 320 1430 632 350 GMV H280WL A X 940 460 1615 610 486 GMV H335WL A X 940 460 1615 610 486 GMV 224WL C X 940 320 1430 632 350 GMV 280WL C X 940 460 1615 6...

Page 11: ...DC Inverter Multi VRF System 7 4 2 Connection Pipe 4 2 1 Schematic Diagram of Piping Connection Fig 4 2 ...

Page 12: ...ection Pipe Piping parameters of GMV H224WL A X GMV H280WL A X GMV H335WL A X GMV 224WL C X GMV 280WL C X GMV 335WL C X GMV 280WL C1 X GMV 335WL C1 X Allowable value Fitting pipe Total length actual length of fitting pipe 300m L1 L2 L3 a b c d Length of farthest fitting pipe m Actual length 120m L1 L2 L3 d Equivalent length 150m From the 1st branch to the farthest indoor pipe 40m L2 L3 d Height di...

Page 13: ... GMV H280WL A X Φ22 2 Φ9 52 GMV H335WL A X Φ25 4 Φ12 7 GMV 224WL C X Φ19 05 Φ9 52 Welding connection GMV 280WL C X Φ22 2 Φ9 52 GMV 335WL C X Φ25 4 Φ12 7 GMV 280WL C1 X Φ22 2 Φ9 52 GMV 335WL C1 X Φ25 4 Φ12 7 4 2 4 Selection of Indoor Branches Select indoor branches according to the total capacity of downstream indoor units If the capacity exceeds that of the outdoor unit capacity of outdoor unit pr...

Page 14: ...7 Φ6 35 5 6 C 14 2 Φ15 9 Φ9 52 14 2 C 22 4 Φ19 05 Φ9 52 22 4 C 33 5 Φ25 4 Φ12 7 4 2 6 Dimension of Pipe between Indoor Branch and IDU Dimension of pipe between indoor branch and IDU should be consistent with the dimension of indoor pipe Fig 4 7 Rated capacity of IDU C kW Gas pipe mm Liquid pipe mm C 2 8 Φ9 52 Φ6 35 2 8 C 5 0 Φ12 7 Φ6 35 5 0 C 14 0 Φ15 9 Φ9 52 14 0 C 16 0 Φ19 05 Φ9 52 16 0 C 28 0 Φ...

Page 15: ...utter to cut the connection pipe in case it is unshaped 2 Keep the pipe downward in case cutting scraps get into the pipe Clear away the burrs after cutting 3 Remove the flared nut connecting indoor connection pipe and outdoor unit Then use flaring tool to fix the flared nut into the pipe as shown in Fig 4 8 4 Check if the flared part is flaring evenly and if there is any crack Fig 4 8 4 3 3 Pipe ...

Page 16: ...ipe 7 When connecting IDU with connection pipe do not pull the big and small joints of IDU with force in case the capillary tube or other tubes have cracks and cause leakage Fig 4 11 Fig 4 12 Pipe diameter Tightening torque Φ6 35mm 15 30 N m Φ9 52mm 35 40 N m Φ12 7mm 45 50 N m Φ15 9mm 60 65 N m 4 3 5 Outdoor Pipe Connection During engineering installation the connection pipe inside the unit must b...

Page 17: ... Fig 4 15 and Fig 4 16 open the front side plate rear side plate and connection board Then open the soundproof cotton Use a soldering gun to unsolder connection pipe 1 and connection pipe 2 Rotate them to a proper angle and install them to their respective position Seal the apertures with welding rod First weld connection pipe 1 liquid pipe and then weld connection pipe 2 gas pipe During welding i...

Page 18: ...4 17 2 Y type branch has several pipe sections with different dimension which facilitates to match with various copper pipes Use pipe cutter to cut in the middle of the pipe section that is of proper dimension and remove burrs as well See Fig 4 18 3 Y type branch must be installed vertically or horizontally ...

Page 19: ...n from the air 2 Thermal insulating material shall be able to bear the pipe temperature For heat pump unit liquid pipe should bear 70 C or above and gas pipe should bear 120 C or above For cooling only unit both liquid pipe and gas pipe should bear 70 C or above 3 Example Polyethylene foam bear 120 C or above foaming polyethylene bear 100 C or above 4 Joints of indoor and outdoor unit should be wr...

Page 20: ... indoor unit and connection pipe from the outdoor valve as shown in Fig 4 20 Fig 4 20 4 4 2 Refrigerant Adding 1 Refrigerant quantity of outdoor unit before delivery Model GMV H224WL A X GMV H280WL A X GMV H335WL A X GMV 224WL C X Refrigerant Qty kg 5 5 7 1 8 0 5 5 Model GMV 280WL C X GMV 335WL C X GMV 280WL C1 X GMV 335WL C1 X Refrigerant Qty kg 7 1 8 0 7 1 8 5 NOTES The refrigerant amount charge...

Page 21: ...t the unit in cooling startup and fill refrigerant from the low pressure check valve of the outdoor unit 3 Calculation example Fig 4 21 IDU No IDU IDU IDU IDU Model Duct type GMV ND71PL B T Duct type GMV ND50PL B T Duct type GMV ND36PL B T Duct type GMV ND25PL B T Liquid pipe No A B C D Pipe size mm Φ9 52 Φ9 52 Φ9 52 Φ6 35 Length m 10 5 5 5 No a b c d Pipe size mm Φ9 52 Φ6 35 Φ6 35 Φ6 35 Length m ...

Page 22: ...rcuit and overload 9 Grounding Requirements 1 Air conditioner belongs to class I electrical appliance so it must be securely grounded 2 The yellow green wire inside the unit is a ground wire Do not cut it off or secure it with tapping screws otherwise it will lead to electric shock 3 Power supply must include secure grounding terminal Do not connect the ground wire to the following Water pipe Gas ...

Page 23: ... specification according to national standard The communication wire between the indoor unit and the outdoor unit should wind with a magnetic ring packed in the packing accessories The communication wire should wind the magnetic ring for 4 circles and the use the tie line to fix the magnetic ring at the meta sheet Please refer to the diagrammatic sketch as Fig 4 23 Only for the models whose packin...

Page 24: ...the unit is installed securely Unit may drop shake or emit noise Gas leakage test is taken or not Insufficient cooling heating capacity Unit gets proper thermal insulation or not There may be condensation and dripping Drainage is smooth or not There may be condensation and dripping Is the voltage in accordance with the rated voltage specified on the nameplate Unit may have malfunction or component...

Page 25: ...ll control circuits and wires are correctly and securely connected 3 Check whether the fixing loops for compressor foots are removed 4 All small pieces especially metal chips thread ends and forceps holder must be removed from the unit 5 Check whether unit s appearance and pipeline system has been damaged during transportation 6 Calculate the quantity of refrigerant that needs to be added accordin...

Page 26: ...ay will be on for 1min during which master IDU can be set manually If not system will set the unit with minimum IP address as the master IDU db On 02 On OC On Allocation is finished 2s later next step starts 03_ Confirm the quantity of ODU db On 03 On 01 Blink System is confirming 1s later next step starts db On 03 On OC On System finishes confirmation 2s later next step starts 04_ Confirm the qua...

Page 27: ...e ratio within range And restart debugging from progress 01 db On 05 On CL On Rated capacity ratio of IDU is too low Change the combination way of IDU and ODU to make the ratio within range And restart debugging from progress 01 06_ Detect outdoor components db On 06 On error code On Outdoor component s error LED3 will display the related error code After errors are eliminated system will start ne...

Page 28: ...em starts progress 10 automatically db On 09 On OC On Refrigerant is normal and unit will display as in the left for 2s Then next step starts 10_ Status judgments of outdoor valves before startup db On 10 On ON On Valves of ODU are being inspected Compressor will start operation for 2min or so and then stop The opening and closing status of outdoor valves are as below db On 10 On U6 On Outdoor val...

Page 29: ...parameters Outdoor temperature C 2 Compressor discharge temperature C When compressor starts discharge temp in cool mode is within 70 105 C and at least 10 C higher than the high pressure saturation temp As for temp in heat mode it is within 65 90 C and at least 10 C higher than the high pressure saturation temp 3 Defrosting temperature C In cool mode defrosting temp is 4 10 C lower than system s ...

Page 30: ...ed by software is the same with the actual number No communication error 14 Drainage system Indoor unit can drain water out completely and smoothly Condensate pipe has no backward slope of water Water of outdoor unit can be drained completely through drainage pipe No water drop from unit base 15 Others Compressor and indoor outdoor fan motor do not have strange noise Unit can operate normally 6 Co...

Page 31: ...high humidity air is cooled rapidly Noise is emitted When the power supply is connected there is small dada sound It is the sound of startup action of electronic expansion valve When the system is conducting cooling or defrosting there is continuous sa sound This is the sound of refrigerant flowing inside the unit When the system is switching cooling and heating modes during heating operation the ...

Page 32: ...ndoor unit will continue to work for 20 to 70 seconds to fully use the residual cooling or heat of the heat exchanger and to prepare for the next use Mode conflict Cooling or heating mode cannot start up When the selected operation mode of the indoor unit conflicts with the operation mode of the outdoor unit after five seconds the indoor unit error indicator flashes or the remote controller displa...

Page 33: ...erter compressor H6 Drive IPM module protection of fan H7 Malfunction of drive temperature sensor of fan H8 Drive IPM high temperature protection of fan H9 Desynchronizing protection of inverter fan HH High voltage protection of fan s drive DC bus bar HC Drive current detection circuit malfunction of fan HL Low voltage protection of fan s drive DC bus bar HE Phase lacking of inverter fan HF Drive ...

Page 34: ...apacity is too low CF Malfunction of multiple main control units CJ Malfunction of multiple main wired controllers CP Malfunction of multiple main wired controllers CU Communication malfunction between IDU and the receiving lamp plate Cb Overflow distribution of IP address Status Error Code Content Error Code Content A0 Unit waiting for debugging A1 Inquiry of compressor operation parameters A2 Re...

Page 35: ... authorized service center 8 4 Maintenance after Seasonal Use 1 Disconnect power of the entire system 2 Clean the air filter and outer case of indoor and outdoor units 3 Clean away the dust and obstacles on indoor and outdoor units 4 If outdoor unit has rust please apply some paint to it so as to prevent the rust from growing 8 5 Parts Replacement Parts and components can be obtained from nearby G...

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