Related Manuals for Gree GMV-224WM/G-X
Summary of Contents for Gree GMV-224WM/G-X
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners GMV DC Inverter VRF Models: GMV-224WM/G-X GMV-280WM/G-X GMV-335WM/G-X …… GMV-2720WM/G-X...
- Page 2 (7) The final right to interpret for this instruction manual belongs to Gree Electric Appliances, Inc. of Zhuhai.
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product; (2) Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer;...
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Page 4: Table Of Contents
Contents 1 Safety Notices (Please be sure to abide) ·························································· 1 2 Product Introduction ······················································································ 5 2.1 Product Features ····························································································· 5 2.2 Product List ···································································································· 5 2.3 Names of Main Parts ························································································ 7 2.4 The Range of Production Working Temperature ······················································ 7 2.5 Standard Parts ································································································... -
Page 5: Safety Notices (Please Be Sure To Abide)
GMV DC Inverter VRF 1 Safety Notices (Please be sure to abide) WARNING: If not abide them strictly, it may cause severe damage to the unit or the people. NOTE: If not abide them strictly, it may cause slight or medium damage to the unit or the people. - Page 6 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 damaged and lead to electric shock or fire.
- Page 7 GMV DC Inverter VRF 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. Volatile liquid, such as diluent or gas will damage the unit appearance. Only use soft cloth ...
- Page 8 MUST TO DO User is not allowed to repair the unit. Fault service may cause electric shock or fire accidents. Please contact Gree appointed service center for help. Do not expose the unit to the moist or corrosive circumstances. ...
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Page 9: Product Introduction
2 Product Introduction 2.1 Product Features Gree Multi VRF Modular System adopts inverter compressor technology. According to change the displacement of compressor, stepless capacity regulation within range of 10%-100% can be realized. Various product lineup is provided with capacity range from 22.4kW to 272kW, which can be widely used in working area and especially applicable to the place with variable load change. - Page 10 2.2.2 Combinations of Indoor and Outdoor Units (1) The following table indicates the number of IDU for ODU： Max number of connectable Max number of connectable ODU model ODU model IDU (unit) IDU (unit) GMV-224WM/G-X GMV-1510WM/G-X GMV-280WM/G-X GMV-1565WM/G-X GMV-335WM/G-X GMV-1623WM/G-X GMV-400WM/G-X GMV-1679WM/G-X...
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Page 11: Names Of Main Parts
GMV DC Inverter VRF Max number of connectable Max number of connectable ODU model ODU model IDU (unit) IDU (unit) GMV-895WM/G-X GMV-2190WM/G-X GMV-950WM/G-X GMV-2245WM/G-X GMV-1015WM/G-X GMV-2295WM/G-X GMV-1064WM/G-X GMV-2350WM/G-X GMV-1119WM/G-X GMV-2414WM/G-X GMV-1175WM/G-X GMV-2470WM/G-X GMV-1230WM/G-X GMV-2525WM/G-X 80(85)* GMV-1295WM/G-X GMV-2590WM/G-X 80(90)* GMV-1360WM/G-X GMV-2655WM/G-X 80(95)* GMV-1399WM/G-X GMV-2720WM/G-X... -
Page 12: Standard Parts
GMV DC Inverter VRF 2.5 Standard Parts Please use the following standard parts supplied by Gree. Parts for Outdoor Unit Number Name Picture Quantity Remarks — Owner's Manual Must be connected to Wiring (match the last IDU of with resistance) -
Page 13: Outdoor Unit Installation
GMV DC Inverter VRF 3.2 Outdoor Unit Installation 3.2.1 Product Size Drawing The product photos are only for reference. Please refer to the actual product. Outline and Physical Dimension of GMV-224WM/G-X、GMV-280WM/G-X、 GMV-335WM/G-X unit. Unit: mm Fig.3.2.1... - Page 14 GMV DC Inverter VRF Pipe diameter Name GMV-224WM/G-X GMV-280WM/G-X GMV-335WM/G-X Gas pipe Φ19.05 Φ22.2 Φ25.4 ❶ Liquid pipe Φ9.52 Φ9.52 Φ12.7 ❷ Pipe and wiring passing 196×69 196×69 196×69 ❸ hole (L×W) Hoist hole Φ50 Φ50 Φ50 ❹ Outline and Physical Dimension of GMV-400WM/G-X、GMV-450WM/G-X、GMV-504WM/G-X、...
- Page 15 GMV DC Inverter VRF Pipe diameter Name GMV-400WM/G-X GMV-450WM/G-X GMV-504WM/G-X Gas pipe Φ25.4 Φ28.6 Φ28.6 ❶ Liquid pipe Φ12.7 Φ12.7 Φ15.9 ❷ Pipe and wiring passing 234×69 234×69 234×69 ❸ hole (L×W) Hoist hole Φ50 Φ50 Φ50 ❹ Pipe diameter Name GMV-560WM/G-X GMV-615WM/G-X...
- Page 16 GMV DC Inverter VRF 3.2.2.1 Take seasonal wind into consideration when installing the outdoor unit (1) Anti-monsoon installation requirements for unit not connecting exhaust duct. When the exhaust duct is not connected, a protective cover should be installed according to the seasonal wind circumstances.
- Page 17 GMV DC Inverter VRF 3.2.2.2 Take snow into consideration when installing the outdoor unit When the unit is installed, the snow should be taken into consideration for the height of the base. Note: The photo is only for reference. Please refer to the installation locale. Fig.3.2.5...
- Page 18 GMV DC Inverter VRF 3.2.3 Installation Space Requirements The installation space of the unit should consider the maintenance space of the unit and the ventilation of the unit. Select an installation method according to the actual situation. Fig.3.2.6 Unit: mm Status A+B+C+D a≥300...
- Page 19 GMV DC Inverter VRF Status A+B+C+D a≥300 b≥100 c≥100 Status — d≥100 e≥200 f≥500 a≥300 b≥500 c≥100 Status — d≥500 e≥200 f≥900 Notes: (1) The installation space shown above is based on the cooling operation when the outdoor temperature is 35℃. If the outdoor temperature exceeds 35℃ or the heat load is large, and all outdoor units are operating at an excess capacity, the space at the suction side should be increased.
- Page 20 GMV DC Inverter VRF (5) If the wall exceeds the above value, increase the space as follows. Unit: mm Fig.3.2.8 (6) If there is an obstacle above the unit, install the unit as follows. In principle, the top of the unit is required to be more than 3000 mm from the top wall. If the space around the front, back, left and right sides of the unit is open space, the top of the unit is required to be 1500mm or more from the top wall, as shown in the fig.
- Page 21 GMV DC Inverter VRF 3.2.5 Diagram of installation foundation The concrete foundation of the ODU must be strong enough. Ensure that the drainage is smooth and that the ground drainage or floor drainage is not affected. Requirements on the concrete foundation are as follows: (1) The concrete foundation must be flat and have enough rigidity and strength to undertake the unit’s weight during running.
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Page 22: Pipeline Design
GMV DC Inverter VRF 3.3 Pipeline Design 3.3.1 Notices for Pipeline Design (1) Air-conditioning installation should not damage the load-bearing structure and decorative style of the building. (2) Air-conditioning pipes should be laid along the bottom of the beam. If the pipes meet at the same elevation, they should be treated as follows: 1) Drain pipes, ducts and pressure pipes avoid gravity pipes. - Page 23 GMV DC Inverter VRF 3.3.3 Allowable pipe length and height difference among indoor and outdoor units Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in the figure below. Unit: m Fig.3.3.1 L10: Length from the first branch to the farthest IDU; L11: Length from the first branch to the nearest IDU;...
- Page 24 Outdoor Model Gas pipe size(mm) Liquid pipe size(mm) GMV-224WM/G-X No need to enlarge pipe size No need to enlarge pipe size GMV-280WM/G-X No need to enlarge pipe size Φ12.7...
- Page 25 GMV DC Inverter VRF Outdoor Model Gas pipe size(mm) Liquid pipe size(mm) GMV-1565WM/G-X Φ44.5 Φ22.2 GMV-1623WM/G-X Φ44.5 Φ22.2 GMV-1679WM/G-X Φ44.5 Φ22.2 GMV-1734WM/G-X Φ44.5 Φ22.2 GMV-1790WM/G-X Φ44.5 Φ22.2 GMV-1845WM/G-X Φ44.5 Φ22.2 GMV-1910WM/G-X Φ51.4 Φ25.4 GMV-1975WM/G-X Φ51.4 Φ25.4 GMV-2040WM/G-X Φ51.4 Φ25.4 GMV-2069WM/G-X Φ51.4 Φ25.4 GMV-2129WM/G-X...
- Page 26 GMV DC Inverter VRF Fig.3.3.3 Fig.3.3.4 Fig.3.3.5 Fig.3.3.6...
- Page 27 (2) Pipe "A" between the outdoor unit and the manifold of outdoor unit. The pipe size is based on the capacity of upstream module. Pipe between ODU and the first branch of IDU Basic module Gas pipe(mm) Liquid pipe(mm) GMV-224WM/G-X Φ19.05 Φ9.52 GMV-280WM/G-X Φ22.2 Φ9.52 GMV-335WM/G-X Φ25.4...
- Page 28 GMV DC Inverter VRF Pipe between ODU and the first branch of IDU Basic module Gas pipe(mm) Liquid pipe(mm) GMV-615WM/G-X Φ28.6 Φ15.9 GMV-680WM/G-X Φ28.6 Φ15.9 (3) Fitting pipe "B" between outdoor unit manifold; fitting pipe "C" from outdoor unit to indoor manifold.
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Page 29: Pipeline Installation And Insulation
GMV DC Inverter VRF (6) Select the branch “①” of outdoor module. Total capacity of upstream module Q(kW) Model Q≤186 ML01/A Q>186 ML02/A (7) Select the manifold “②” at indoor side. Manifold at indoor unit side can be selected as per total capacity of downstream indoor unit(s). Refer to the following table. - Page 30 GMV DC Inverter VRF Align the expansion end of copper pipe with the center of threaded joint. Tighten the flare nuts with your hands. Tighten the flare nuts with torque wrench until you hear "click" sound. Use sponge to wrap the connecting pipe and joints without thermal insulation and tie it up with plastic tape.
- Page 31 GMV DC Inverter VRF Fig.3.4.3 The installation of the branch pipe has the following requirements. Please install it according to the angle shown in the figure below. Improper installation may lead to malfunction of the outdoor unit. Y-type manifold: Fig.3.4.4...
- Page 32 GMV DC Inverter VRF T- type manifold: Fig.3.4.5 Manifold 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. See the Fig. as below. Fig.3.4.6 The length of a straight pipe between two manifolds cannot be less than 500 mm.
- Page 33 GMV DC Inverter VRF Unit: mm Fig.3.4.7 3.4.3 Fixation of Manifold (1) There must be three fixing point for both horizontal and vertical installation of the Y-type manifold. Fixing point 1: 100 mm on the main inlet manifold from the welding point. Fixing point 2: 200 mm on the main branched pipe from the welding point.
- Page 34 GMV DC Inverter VRF Fig.3.4.9 (3) The branches of the manifold should be parallel and should not be overlapped. (4) The liquid pipe and the gas pipe should have the same pipe length and the same laying circuit. (5) Since the structure of the manifold is relatively complicated, it must be rigorous and careful for heat preservation to ensure the tight insulation.
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Page 35: Static Pressure Ventilation Pipe Installation
GMV DC Inverter VRF 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. Joints at indoor and outdoor units should be wrapped with insulating material and leave no clearance between pipe and wall. - Page 36 GMV DC Inverter VRF Step Photo Operation instruction Note 1) Select installation position for the outdoor unit and then fix it well; 2) Determine the 1) Ventilation pipe installation position of the ventilation pipe material: steel plate according to the or iron sheet;...
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Page 37: Vacuum And Drying Of Refrigeration System
GMV DC Inverter VRF Step Photo Operation instruction Note 1) Pull the canvas casing upside down and press it on the butt flange of the steel pipe ventilation pipe with steel bars; 2) Drill holes with the Step 4 — manual drill and fix them with self- tapping screws;... - Page 38 GMV DC Inverter VRF It is not allowed to connect the pipeline of outdoor unit for test during the air tightness test. The test pressure for R410A system is 4.15 MPa. The air tightness test must use nitrogen as the medium and the nitrogen should be dried.
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Page 39: Additional Refrigerant Charging
GMV DC Inverter VRF Fig.3.6.2 When the vacuum pump is turned off to stop vacuuming, the valve should be closed at first and then cut off the power for the vacuum pump. Keep the vacuum for 2 hours and confirm that the pressure of the vacuum gauge has not risen. - Page 40 GMV DC Inverter VRF Notes: ① Rated capacity configuration rate of indoor unit and outdoor unit C = sum of indoor unit rated cooling capacity / sum of outdoor unit rated cooling capacity. ② If all indoor units are all fresh air indoor units, the added refrigerant amount for each module B is 0kg.
- Page 41 GMV DC Inverter VRF the joint and open the refrigerant tank valve. Step 4: If the refrigerant tank itself does not have a siphon, then the refrigerant tank needs to be inverted and placed on the electronic scale to record the current weight of m1; if the refrigerant tank itself has a siphon, the refrigerant tank should be kept in an upright state, and record the current weight of m1.
- Page 42 GMV DC Inverter VRF Step 7: Close the high pressure gauge valve and replace the refrigerant tank. Step 8: Re-execute "step 3". Step 9: Repeat "step 5" and "step 6" to record the weight of m3 before charging refrigerant and the weight of m4 after charging refrigerant.
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Page 43: Electrical Installation
GMV DC Inverter VRF Step 6: Once debugging is finished, disassemble the pressure gauge, etc., to complete the refrigerant-charging work. 3.7.3 Precautions on Refrigerant Leakage (1) 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. - Page 44 Capacity of Minimum cross- circuit breaker of sectional area of Recommended wire (cross- Model Combination method each grounding wire sectional area) (mm combination module (A) GMV-224WM/G-X — 2.5×5 GMV-280WM/G-X — 2.5×5 GMV-335WM/G-X — 4.0×5 GMV-400WM/G-X — 6.0×5 GMV-450WM/G-X —...
- Page 45 GMV DC Inverter VRF Capacity of Minimum cross- circuit breaker of sectional area of Recommended wire (cross- Model Combination method each grounding wire sectional area) (mm combination module (A) GMV-950WM/G-X 335+615 25+50 4.0+10.0 4.0×5+10.0×5 GMV-1015WM/G-X 400+615 40+50 6.0+10.0 6.0×5+10.0×5 GMV-1064WM/G-X 504+560 50+50 10.0+10.0...
- Page 46 GMV DC Inverter VRF ② Specification of power cord is based on the working condition where ambient temperature is 40℃ and multi-core copper cable with working temperature of 90℃ is lying on the surface of slot. If working condition changes, please adjust the specification according to national standard.
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Page 47: Communication Line Connection
GMV DC Inverter VRF Step 2: Tighten the cable with a cable tie. Step 3: Please refer to the engineering wiring mark on the unit for the power cord connection. WARNING! When the power cord and the communication line pass through the wire hole, they must be equipped with wire rubber ring. - Page 48 GMV DC Inverter VRF 3.9.2 Communication Material Selection NOTE! If the air conditioning unit is installed in a place with strong electromagnetic interference, the communication line between the indoor unit and the wired controller must adopts shielded wires; the communication line between indoor units (between indoor unit and outdoor unit) must use the shielded twisted pairs.
- Page 49 GMV DC Inverter VRF Fig.3.9.3 3.9.3 Communication Line Connection Communication bus connection between indoor unit and outdoor unit must be connected in series, rather than star connection; the endmost indoor unit of communication bus between indoor unit and outdoor unit must connect with the communication matching resistor(in the outdoor unit plastic bag); the fresh air indoor unit is not recommended to be set as the main indoor unit.
- Page 50 GMV DC Inverter VRF Fig.3.9.6 3.9.4 Communication Address Setting The indoor unit and outdoor unit adopt automatic addressing technology. It is not necessary to manually set the address code. It only needs to set the main module and centralized control address (set it when centralized control of multiple refrigeration systems is required) 3.9.5 Communication Connection between IDU and ODU Communication between IDU and ODU is connected through the D1/D2 port of the...
- Page 51 GMV DC Inverter VRF Fig.3.9.7 Connection of single unit Fig.3.9.8 Connection of modular units NOTES! ① As for modular indoor unit, if there are multiple outdoor unit modules, the master module must be the first outdoor unit module on the communication line, and it must not connect to the indoor unit (main module is set by SA8 of indoor unit main board).
- Page 52 GMV DC Inverter VRF ② As for modular outdoor unit, if there are multiple outdoor unit modules, the indoor unit must be connected to the last outdoor unit’s slave module (slave unit is set by SA8 of indoor unit main board). ③...
- Page 53 GMV DC Inverter VRF Fig.3.9.12 Two wired controllers control multiple IDU When two wired controllers control multiple IDUs, the wired controller can be connected to any one IDU, provided that the connected IDU is of the same series. Meanwhile, one and only one of the wired controllers must be set as a slave controller.
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Page 54: Check Items After Installation
GMV DC Inverter VRF 3.10 Check Items after Installation Check Items Conditions Might Happen Check Has the unit been fixed firmly? The unit may drop, shake or emit noise. It may cause insufficient cooling/heating Have you done the gas leakage test? capacity. -
Page 55: Debugging And Operation
GMV DC Inverter VRF 4 Debugging and Operation NOTES! (1) Do set one (only one) module as the main module during debugging. (2) When there is no special requirement, the other functions do not need to be set, and it can be operated according to the factory settings. - Page 56 GMV DC Inverter VRF (3) When debugging, the front panel of the outdoor unit must be completely closed, otherwise it will affect the accuracy of debugging (as shown in the Fig as below). .4.2.2 Fig.4.2.2 (4) Display instruction for each stage progress at the time of debugging: Instruction for each stage progress at the time of debugging Debugging Progress code...
- Page 57 GMV DC Inverter VRF Instruction for each stage progress at the time of debugging Debugging Progress code Status code — code LED1 LED2 LED3 Meaning Progress Display Display Display Code Code Code status status status correspod The system has detected the fault of outdoor ing error 06_outdoor unit’...
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Page 58: Basic Introduction For Engineering Debugging
GMV DC Inverter VRF Debugging code Progress code Status code LED1 LED2 LED3 Meaning Display Display Display Code Code Code status status status The complete unit has conducted the debugging and the unit is under standby 01~04 status. LED1 displays module address; LED2 and LED3 displays “OF”. - Page 59 GMV DC Inverter VRF debugging after setting. During the assignment process, all module digital tubes displays are as below: — Debugging code Progress code Status code LED1 LED2 LED3 Progress Display Display Display Code Code Code status status status 02_allocate Flash addresses Step 6: When the unit is running to step 03, it displays the number of modules connected to the...
- Page 60 GMV DC Inverter VRF — Debugging code Progress code Status code LED1 LED2 LED3 Meaning Progress Display Display Display Code Code Code status status status Once the system 05_detect inspection is internal completed, it will enter communication into the next step automatically.
- Page 61 GMV DC Inverter VRF If there is no abnormality in the detection, the display is as below, and then it automatically enters the next step of detection. — Debugging code Progress code Status code LED1 LED2 LED3 Meaning Progress Display Display Display Code...
- Page 62 GMV DC Inverter VRF If there is no refrigerant in the system or the amount of refrigerant does not meet the requirements for starting operation, the unit will display U4 “Refrigerant-lacking protection”, as shown below. The unit will enter into the next step. At this time, it is necessary to check whether there is a leak or charge some refrigerant until the abnormality is eliminated.
- Page 63 GMV DC Inverter VRF — Debugging code Progress code Status code LED1 LED2 LED3 Meaning Progress Display Display Display Code Code status status status 12_reserved function — Step 16: After the unit debugging method is confirmed, the system automatically selects cooling or heating mode according to the ambient temperature.
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Page 64: Parameter Judgment Reference Value For Unit Normal Operation
GMV DC Inverter VRF 4.4 Parameter Judgment Reference Value for Unit Normal Operation Debugging Parameter Reference Value for DC Inverter VRF Unit Debugging item Parameter name Unit Reference value Remark Outdoor ambient — — ℃ temperature Discharge pipe temperature of inverter —... -
Page 65: Operation Instruction
GMV DC Inverter VRF Debugging Parameter Reference Value for DC Inverter VRF Unit Debugging item Parameter name Unit Reference value Remark Operation frequency of Hz ● Change among 20Hz~140Hz — inverter compressor IPM module ● IPM module temperature is lower than 80℃. -
Page 66: Maintenance
2 hours before starting the operation to preheat the outdoor compressor crankcase. (6) Check if the outdoor unit is installed firmly. If there is any abnormality, please contact Gree service center. 6.4 Maintenance at the End of Using Season (1) Cut off the main power of the air conditioning unit. -
Page 67: Troubleshooting
Too many heat resources in the room. Reduce heat resources. Filter is blocked and dirty. Clean the filter. NOTE: If problem cannot be solved after checking the above items, please contact Gree service center and describe the cases and models. - Page 68 GMV DC Inverter VRF ● Following circumstances are not malfunctions. Phenomenon Causes When unit is started immediately after it Overload protection switch makes it run after 3 minutes is just turned off delay Unit doesn’t run When power is turned on Standby operating for about 1 minute Mist comes from the unit Under cooling...
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Page 69: Error Indication
GMV DC Inverter VRF 7.2 Error Indication NOTE! For specific unit fault and maintenance, please refer to the engineering debugging and after-sales maintenance manual of DC inverter VRF unit. Error Error — Content Content Code Code Malfunction of IDU Protection of indoor fan Auxiliary heating protection Water-full protection Abnormal power supply for wired... - Page 70 GMV DC Inverter VRF Error Error — Content Content Code Code Malfunction of ODU High-pressure protection Discharge low-temperature Low-pressure protection protection High discharge temperature Drive IPM low temperature protection of compressor protection Malfunction of high-pressure Main board of ODU is poor sensor Malfunction of discharge Malfunction of low-pressure sensor...
- Page 71 GMV DC Inverter VRF Error Error — Content Content Code Code Driving board of compressor Voltage protection of driving board operates abnormally power of compressor Reset protection of driving module Drive PFC protection of of compressor compressor Over-current protection of inverter Drive IPM module protection of compressor compressor...
- Page 72 GMV DC Inverter VRF Error Error — Content Content Code Code Preheat time of compressor is Wrong setting of ODU’s capacity insufficient code/jumper cap Power supply phase sequence Refrigerant-lacking protection protection Wrong address for driving board of Alarm because valve is abnormal compressor Malfunction of pipeline for IDU Malfunction of pipeline for ODU...
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Page 73: After-Sales Service
Gree. Warranty should meet the following requirements: (1) First run of the unit should be operated by professional personnel from Gree appointed service center. (2) Only Gree manufactured accessories can be used on the machine.