Related Manuals for Gree GMV-12WP/A-T
Summary of Contents for Gree GMV-12WP/A-T
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners DC Inverter Multi VRF System Model: GMV-12WP/A-T(U)
- Page 2 Preface For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: Instructions for installation and use of this product are provided by the manufacturer. Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only.
- 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 them) ............1 2 Product Introduction ....................2 2.1 Names of Main Parts ......................2 2.2 Combinations of Indoor and Outdoor Units ............... 2 2.3 Operating Range ......................3 3 Preparation before Installation ................. 3 3.1 Standard Parts ........................ -
Page 5: Safety Notices (Please Be Sure To Abide Them)
(19) Do not repair the unit by yourself. Wrong maintenance may cause electric shock or fire hazard. Please contact Gree appointed service center for help. (20) Before installation, please check whether the power supply is complied with that specified on the nameplate and check the safety of the power supply. -
Page 6: Product Introduction
(27) If there are any abnormal circumstances (such as burning smell, etc.), please turn off the unit and cut off the main power supply immediately, and then contact Gree appointed service center. If those abnormal circumstances still exit, the unit may be damaged and it may lead to electric shock or fire hazard. -
Page 7: Operating Range
DC Inverter Multi VRF System 2.3 Operating Range Cooling Outdoor temperature: -5°C~48°C(23°F~118.4°F) Heating Outdoor temperature: -20°C~27°C(-4°F~80.6°F) 3 Preparation before Installation NOTE Graphics here are only for reference. Please refer to actual products. Unspecified dimensions are all in mm/inch. 3.1 Standard Parts Please use the supplied standard parts as required. -
Page 8: Piping Work Requirements
DC Inverter Multi VRF System If the ODU is totally surrounded by walls, please refer to the following figures for space dimension: Unit: mm (inch) Fig. 2 Allow for wall finishing Allow for floor finishing Dimension Min.(mm/inch) Min. (mm/inch) Max. (mm/inch) No Accessories 6.35(1/4) 6.35(1/4) -
Page 9: Dimension Of Outdoor Unit And Mounting Hole
4.1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension. Fig.3 Unit: mm (inch) Model GMV-12WP/A-T(U) 1069(42-1/16) 406(16) 500(19-11/16) 4.2 Safety Notices for Installation, Maintenance and Relocation (1) Do not mix any substance other than refrigerant in the refrigerant circuit during installation or relocation. -
Page 10: Assembly Procedures
DC Inverter Multi VRF System Improper connection or fixing may cause a fire accident. (7) No connection is allowed in the middle of the wire. If the length of wire is not enough, please contact the designated service store to prepare a specialized wire with sufficient length. (8) In order to prevent small animals from entering, when the on-site pipe connection of outdoor unit is finished, you must keep the unit baffle and seal the knock-out hole properly with insulating material. - Page 11 DC Inverter Multi VRF System 4.3.3 Disassemble Injection Molding Panel Fig.6 NOTE Before installing the complete unit, remove the panel to prevent damage. 4.3.4 Install Main Unit Fig.7 Push the unit into the outer case Fig.8 Install the unit inside the metal outer case and then use screws to fix it NOTE After the main unit is installed, remember to check the horizontal status of the whole unit.
- Page 12 DC Inverter Multi VRF System 4.3.5 Install Power, Communication and Pipeline Fig.9 Fig.10 The diameter of drain pipe must be less than Φ15mm (Φ3/5inch). When the drain pipe is installed, the highest position of the drain pipe can’t exceed 3.5m (11-1/2feet) above the bottom of unit and a water loop must be set at the highest position.
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Page 13: Connection Pipe
DC Inverter Multi VRF System 4.3.6 Remove the Knockout Hole on the Panel Fig.11 4.3.7 Install Panel Fig.12 Install the panel on the unit, and press e buckle on both sides. 4.4 Connection Pipe 4.4.1 Schematic Diagram of Piping Connection Fig.13 4.4.2 Allowable Length and Height Difference of Connection Pipe Y type branch joint is adopted to connect indoor and outdoor units. - Page 14 DC Inverter Multi VRF System NOTE Equivalent length of one Y-type branch is 0.5m (1-5/8feet). Fig.14 Allowable Length and Height Difference of Connection Pipe Piping parameters of GMV-12WP/A-T(U) Allowable value — Fitting pipe feet Total length (actual length) of fitting pipe...
- Page 15 DC Inverter Multi VRF System 4.4.4 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 prevails. Fig.16 R410A Refrigerant system Total capacity of downstream indoor units C (Btu/h) Model C<68200...
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Page 16: Installation Of Connection Pipe
DC Inverter Multi VRF System 4.4.6 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. 18 Rated capacity of IDU C(Btu/h) Gas pipe (mm/inch) Liquid pipe (mm/inch) C≤9600 Φ9.52(Φ3/8) - Page 17 DC Inverter Multi VRF System (4) Check if the flared part is flaring evenly and if there is any crack. Fig. 19 4.5.3 Pipe Bending (1) Reshape the pipe by hand. Be careful not to damage the pipe. Fig. 20 Fig.
- Page 18 During engineering installation, the connection pipe inside the unit must be wrapped by insulation sleeve. Below is the piping diagram of GMV-12WP/A-T(U). According to customer requirement or space limit, outlet pipe can be installed from the front, right or rear side.
- Page 19 DC Inverter Multi VRF System Fig. 26 (4) Branch shall be isolated by insulating material that can bear 120° or even higher temperature. The attached foam of branch cannot be taken as insulating material. 4.5.7 Thermal Insulation for Pipeline (1) For multi VRF system, every copper pipe should be labeled so as to avoid misconnection. (2) At the branch inlet, leave at least 500mm (19-2/3inch) straight pipe section.
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Page 20: Vacuum Pumping, Refrigerant Adding
Fig. 28 4.6.2 Refrigerant Adding (1) Refrigerant quantity of outdoor unit before delivery: Model GMV-12WP/A-T(U) Refrigerant Qty (kg/oz) 0.8(28.2) The refrigerant amount charged before delivery doesn’t include the amount that needs to be added to indoor units and the connection pipeline. -
Page 21: Electric Wiring
DC Inverter Multi VRF System Diameter of liquid Φ22.2(Φ7/8) Φ19.05(Φ3/4) Φ15.9(Φ5/8) Φ12.7(Φ1/2) Φ9.52(Φ3/8) Φ6.35(Φ1/4) pipe(mm/inch) kg/m 0.35 0.25 0.17 0.11 0.054 0.022 oz/inch 0.314 0.224 0.152 0.099 0.048 0.020 First confirm that there is no leakage from the system. When compressor is not working, charge additional R410A with specific amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit. - Page 22 DC Inverter Multi VRF System rules. (8) Details of type and rating for fuse: Model: GMV-12WP/A-T(U). Ceramic 250V5A (front main board), ceramic 250V30A (front main board). Connect the unit to specialized grounding device and make sure it is securely grounded. It’s a must to install air switch and current circuit breaker that can cut off the power of the entire system.
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Page 23: Check Items After Installation And Test Operation
DC Inverter Multi VRF System Selection of circuit breaker and power cord in the above table is based upon unit’s maximum power (maximum current). Specification of power cord is based on the working condition where ambient temperature is 40°C (104°F) and multi-core copper cable (working temperature is 90°C (194°F), e.g. -
Page 24: Test Operation And Debugging
DC Inverter Multi VRF System 5.2 Test Operation and Debugging After finishing the first installation or replacing the main board of outdoor unit, it is necessary to perform test operation and debugging. Otherwise, unit won’t be able to work. Test operation and debugging must be performed by professional technicians or under the guidance of professional technicians. - Page 25 DC Inverter Multi VRF System 5.2.2 Test Operation and Debugging Description of test operation procedures and main board display of ODU Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status System is not debugged, hold main board’s SW3 button for 5s 01_Set master...
- Page 26 DC Inverter Multi VRF System Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status System detects error on indoor components. XX means the project code of IDU with error, e.g. no.1 IDU has d5 and d6 errors, meanwhile no.3 IDU displays error d6 and d7, then the 07/XX/error Display...
- Page 27 DC Inverter Multi VRF System Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status Debugging for cooling mode. If no malfunction occurs for Display 50min when compressor is running, then the system is 15/AC Cooling circularly...
- Page 28 DC Inverter Multi VRF System 5.2.3 Appendix: Reference of Normal Operation Parameters Debug item Parameter name Unit Reference Outdoor °C(°F) — temperature When compressor starts, discharge temp in cool mode is within 70~105°C (158~221°F) and at least 10°C (50°F) Compressor higher than the high pressure saturation temp.
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Page 29: Common Malfunctions And Troubleshooting
If there is abnormal condition (e.g. unpleasant smell), turn unit off and disconnect power immediately. Then contact Gree authorized service center. If unit continues operation despite the abnormal condition, it may get damaged and lead to electric shock or fire hazard. -
Page 30: Error Indications
DC Inverter Multi VRF System (2) Following circumstances are not malfunctions. Malfunction Reason Unit starts up immediately after it is Overload protection switch makes it run after a 3-min turned off. delay. Unit doesn’t run. Power is just turned on. Standby operation lasts for about 1min. - Page 31 Protection because of abnormal Malfunction of gas temperature sensor pressure of heat exchanger Water flow switch protection Malfunction of oil-return temperature (GMV-12WP/A-T(U) is Water Full sensor 1 Protection) Protection because high pressure is Clock of system is abnormal too low...
- Page 32 DC Inverter Multi VRF System Error Code Content Error Code Content Failure startup of inverter compressor Failure startup of inverter fan AC current protection of inverter AC current protection of inverter fan compressor Low temperature protection for drive — — module Debugging: Error Code...
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Page 33: Maintenance And Care
(6) Check whether outdoor unit is securely installed. If there is any problem, please contact Gree authorized service center. 8.4 Maintenance after Seasonal Use (1) Disconnect power of the entire system. -
Page 34: Parts Replacement
Otherwise, it may lead to danger. Use nitrogen or refrigerant to conduct the tests. 9 After-sales Service If there’s quality defect or other problems in the product, please contact Gree local after-sales service department for help. Warranty must be based on the following conditions: (1) Product’s initial startup must be performed by professional technicians from Gree service...