Мультизональная система GMV5 с высокоэффективными DC-инверторными компрессорами имеет четыре особенности, которые отличают ее от традиционных инверторных кондиционеров и позволяют обеспечить самое качественное кондиционирование воздуха: энергосбережение, комфорт, надежность и точность поддержания температуры.
Максимальная производительность — 246 кВт
Максимальная производительность одиночного наружного блока достигает 61,5 кВт, а максимальная производительность мультизональной системы из 4 наружных блоков — 246 кВт.
Компактные размеры
Компактные размеры позволяют поднимать наружный блок при помощи лифта, не применяя дорогостоящие подъемные средства.
Новое исполнение рабочей сети — CAN
Завод Gree одним из первых внедрил технологию неполяризованной рабочей сети CAN, которая обеспечивает большую по сравнению с обычными сетями скорость связи, более удобную установку и отладку, а также высокую надежность передачи данных.
Широкий диапазон рабочих параметров
• Система GMV5 может работать на охлаждение при температуре наружного воздуха от –5 до 52°С, а на обогрев — от –20 до 24 °С.
• Система GMV5 может работать в диапазоне 320-460 В, который шире, чем национальный стандарт — 342–420 В. Такая система будет хорошо работать даже при больших колебаниях напряжения.
Широкий выбор места расположения
В одну систему GMV5 может быть объединено до 4 наружных и до 80 внутренних блоков. Это особенно удобно для офисных зданий и гостиниц.
Технология хранения и распределения хладагента
Система GMV5 сконструирована без жидкостного ресивера, и избыток хладагента остается в трубах, что позволяет минимизировать объем хладагента в системе и увеличить точность охлаждения.
Новая технология энергосберегающей работы
Для мультизональных систем GMV5 предусмотрено два режима энергосбережения:
Режим 1:
Параметры кондиционирования изменяются автоматически в соответствии с рабочим режимом.
Таким образом, затраты электроэнергии могут быть снижены на 15%.
Режим 2:
Система принудительно ограничивает потребляемую мощность. Таким образом, затраты электроэнергии могут быть снижены на 20%.
Интеллектуальная разморозка
В мультизональных системах GMV5 реализуется технология интеллектуальной разморозки. Время включения и длительность режима разморозки определяются в соответствии с температурой наружного воздуха и рабочим статусом системы, что обеспечивает низкие потери производительности и высокий уровень комфорта.
Более подробно о мультизональной системе Gree GMV5 Вы можете узнать из каталога. Данный каталог Вы можете скачать во вкладке «скачать».
Обновленные настенные блоки Gree GMV 5
1. Комфортный воздушный поток.
2.Классический белый дизайн.
3. Защита от подачи холодного воздуха.
Данную модель настенного типа чаще используют в доме или в офисе. Для максимального удобства обслуживания и эксплуатации он обладает легкосъемной передней панелью и пультом дистанционного управления с LCD. Блок оснащается тройным воздушным фильтром. Поэтому теперь вы очень легко сможете очистить воздух от пыли и бактерий. А благодаря широкому углу подачи воздух равномерно распределяется по всему помещению. Аппарат работает как на охлаждение так и на обогрев.
Модель настенного типа оснащена компактным классическим дизайном, который позволяет максимально быстро создавать комфортную температуру в помещении.
Равномерно распределяя поток воздуха, кондиционер обеспечивает наилучшую циркуляцию.
Удобный монтаж, красивый дизайн.
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Contents
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Table of Contents
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Troubleshooting
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Photovoltaic Direct-driven Inverter Multi VRF
（GMV5 Solar）
For North America
(GC202005-I)
Capacity: 72000Btu/h~360000Btu/h
Rated Frequency: 60Hz
Operation Range: Cooling: 23~125.6℉
Heating: -4~75.2℉
Related Manuals for Gree GMV5
Summary of Contents for Gree GMV5
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Page 1
Photovoltaic Direct-driven Inverter Multi VRF （GMV5 Solar） For North America (GC202005-I) Capacity: 72000Btu/h~360000Btu/h Rated Frequency: 60Hz Operation Range: Cooling: 23~125.6℉ Heating: -4~75.2℉… -
Page 2: Table Of Contents
Contents CHAPTER 1 INTRODUCTION TO BASIC FEATURES OF UNITS································ 6 1 MODELS LIST ································································································· 6 2 BASIC OPERATING PRINCIPLE ········································································ 6 3 INTERNAL PIPING DESIGN OF THE UNITS ···························································· 7 3.1 Piping Diagram of GMV-Y72WM/C-F(U) 、GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U) ····························································································································7 3.2 Names and Main Functions of Components ·······························································8 4 BASIC PARAMETERS ······················································································…
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5.3 Allowable Pipe Length and Drop Height among Indoor and Outdoor Units ······················ 40 5.4 Connection Pipe among Outdoor Modules······························································· 42 5.5 Fitting pipe between Outdoor Unit and the First Manifold ············································ 43 6 PIPE INSTALLATION AND INSULATION ···························································· 48 6.1 Pipe Installation for the Cooling System ··································································… -
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3.2 Method and Notice for Replacement of Compressor ················································ 260 3.3 Disassembly and Assembly Procedure of Outdoor Unit Main Parts ····························· 284 3.4 Maintenance of Photovoltaic Parts ······································································· 296 4 APPENDIXES ····························································································· 301 4.1 Minutes about a Debug Solution Confirmation Meeting ············································ 301 4.2 Visual Inspection Checklist of the Debug System ····················································… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units PREFACE This manual specifies safe operation requirements for Photovoltaic Direct-driven Inverter Multi VRF units from perspectives of engineering and installation, commissioning and maintenance, as well as basic principles and implementation methods. Professional operators must abide by relevant national (local) safety requirements and technical specifications set forth in this manual during operations;… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units SAFTY PRECAUTIONS To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. -
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• If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by GREE are used, fire or explosion may result. Ventilate before operating air conditioner when gas leaked out. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Installation Always check for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of product. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units or personal injury. Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual. • A bad connection may cause water leakage. Safely dispose of the packing materials. -
Page 10: Chapter 1 Introduction To Basic Features Of Units
GREE Photovoltaic Direct-driven Inverter Multi VRF Units CHAPTER 1 INTRODUCTION TO BASIC FEATURES OF UNITS 1 MODELS LIST Capacity Power Model Product Code Ref. Appearance Cooling Heating Supply (Btu/h) (Btu/h) 208/240V GMV-Y72WM/C-F(U) CN870W0240 72000 81000 R410A 3~60Hz 208/240V GMV-Y96WM/C-F(U) CN870W0220…
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Page 11: Internal Piping Design Of The Units
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3 INTERNAL PIPING DESIGN OF THE UNITS 3.1 Piping Diagram of GMV-Y72WM/C-F(U) 、GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U)
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Page 12: Names And Main Functions Of Components
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.2 Names and Main Functions of Components Name Main Function Adjusts its own rotational speed based on the actual requirement of the Compressor system to implement capacity control. Maintains a proper oil temperature in the compressor when the…
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Page 13: Basic Parameters
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Name Main Function Stop valve, closed when the unit is delivered from the factory and will be Liquid valve opened after installation. Stop valve, closed when the unit is delivered from the factory and will be Gas valve opened after installation.
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Page 14
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Outdoor Units_Heat Pump 6Ton 8Ton 10Ton － GMV-Y72WM/C GMV-Y96WM/C GMV-Y120WM/C Model － -F(U) -F(U) -F(U) Size of liquid pipe Φ3/8 Φ3/8 Φ1/2 Size of oil-balanced pipe Φ3/8 Φ3/8 Φ3/8 Outline 36-5/8×30 52-3/4×30 52-3/4×30… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Outdoor Units_Heat Pump 18Ton 20Ton 22Ton － Model GMV-Y216WM/C-F(U) GMV-Y240WM/C-F(U) GMV-Y264WM/C-F(U) － GMV-Y72WM/C-F(U)+ GMV-Y96WM/C-F(U)+ GMV-Y120WM/C-F(U)+ Module (combinated) GMV-Y96WM/C-F(U)+ － GMV-Y120WM/C-F(U) GMV-Y120WM/C-F(U) GMV-Y96WM/C-F(U) Cooling capacity Btu/h 216000 240000 264000 Heating capacity Btu/h 243000 270000… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Outdoor Units_Heat 24Ton 26Ton 28Ton 30Ton － Pump Model GMV-Y288WM/C-F(U) GMV-Y312WM/C-F(U) GMV-Y336WM/C-F(U) GMV-Y360WM/C-F(U) － GMV-Y96WM/C-F(U) GMV-Y96WM/C-F(U) GMV-Y96WM/C-F(U) GMV-Y120WM/C-F(U) Module (combinated) + GMV-Y96WM/C-F(U) +GMV-Y96WM/C-F(U) +GMV-Y120WM/C-F(U) +GMV-Y120WM/C-F(U) － +GMV-Y96WM/C-F(U) +GMV-Y120WM/C-F(U) +GMV-Y120WM/C-F(U) +GMV-Y120WM/C-F(U) Cooling capacity Btu/h… -
Page 17: Basic Parameter Of Photovoltaic Parts And Components
Power factor -0.8~0.8 Ambient Temperature -20℃—50℃ Ingress Protection TYPE 3 UL 1741 Certifications IEEE 1547 Note: The product can work in different modes by configuring Grid voltage. Manufacturer: GREE Energetic & Environmental Technologies Co., Ltd. of Made in China Zhuhai…
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Page 18: Electrical Parameters
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5 ELECTRICAL PARAMETERS Outdoor Unit (208V) Minimum Circuit Maximum Overcurrent Power Supply Fuse Capacity Ampacity Protection Outdoor units V/ Ph /Hz 208V 3~ 60Hz 35.3 GMV-Y72WM/C-F(U) 208V 3~ 60Hz 43.6 GMV-Y96WM/C-F(U) 208V 3~ 60Hz 44.8…
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Page 19: Circuit Diagram
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 6 Circuit Diagram 6.1 Circuit diagram of GMV-Y72WM/C-F(U)
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Page 20: Circuit Diagram Of Gmv-Y96Wm/C-F(U) And Gmv-Y120Wm/C-F(U)
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 6.2 Circuit diagram of GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U) NOTICE! This drawing is just for reference; please always refer to the electric wiring stuck to the unit for actual wiring. When conducting maintenance based on above circuit diagrams, units must be power-off. Please strictly following the circuit diagrams when reconnecting the wires, otherwise, electric shock may occur.
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Page 21: Chapter 2 Installation
GREE Photovoltaic Direct-driven Inverter Multi VRF Units CHAPTER 2 INSTALLATION 1 ENGINEERING INSTALLATION PREPARATION 1.1 Installation Safety Personnel and property safety are highly concerned during the entire installation process. Installation implementation must abide by relevant national safety regulations to ensure personnel and property safety.
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Page 22: Cooperation Between Different Professions
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Installation Problem Possible Consequence Water drainage from the Residual water in IDUs can affect the normal operation of the system. The condensate water pipe is not possible water leakage can damage the IDU’s decoration.
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units If the pipe needs to go through a bearing beam, a steel casing must be prepared. 1.3.2 Requirements for cooperation with decoration engineering The air conditioning installation should not damage the bearing structure or the decorative style. Air conditioning pipes should be laid out along the bottom of the beam as possible. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Construction Air-conditioning Engineering allocation Engineering cooperation meeting Engineering meeting about socket installation and insertion Working drawing preparation Iron frame socket installation Pipe laying Indoor unit installation Frame reinforcement Refrigerant piping Water drainage piping… -
Page 25: Onsite Review Of Design Drawing
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 1.4 Onsite Review of Design Drawing Installation personnel must carefully read and understand the design scheme and drawings provided by engineering designers, and prepare detailed and feasible construction organization design after reviewing the onsite status.
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Page 26: Construction Organization Process
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 1.5 Construction Organization Process Design disclosure Material purchasing Review of onsite installation places Connecting pipe Outdoor unit installation Indoor unit installation installation Welding Remote Communication Drain pipe Power cable Power cable control cables…
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Page 27: Material Selection
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2 MATERIAL SELECTION 2.1 Requirement for Selecting Construction Materials The materials, equipment and instruments used during air conditioning engineering construction must have certifications and test reports. Products with fireproof requirements must be provided with fireproof inspection certificates and must meet national and relevant compulsory standards.
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.2.3 Insulation material (1) Rubber foam insulation material. (2) Flame retardancy level: B1 or higher. (3) Refractoriness: at least 120℃. (4) The insulation thickness of condensate water pipe: at least 10 mm. (5) When the diameter of copper pipe is equal to or greater than Φ15.9 mm, the thickness of insulation material should be at least 20 mm;… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.2.6 Other requirements Properties of the above-mentioned materials and the rest of materials that are used for the construction and installation must comply with local rules and regulations. Wall thickness of copper pipe shall be consistent with above requirements and the design operating pressure shall not be lower than 3.8MPa (551psi). -
Page 30: Installation Space Requirement
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3 INSTALLATION SPACE REQUIREMENT 3.1 Place Selection for Installing ODU The widely-used VRF units are applicable for various scenarios. In residential areas, especially in rooms where elderly and infants live, a higher refrigerating performance and noise control is required.
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units External and installation dimensions of GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U): Unit: mm(in.) -
Page 32: Installation Space Requirement For Odu
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.3 Installation Space Requirement for ODU 1. If all sides of the ODU (including the top) are surrounded by walls, process according to the following requirements for installation space: (1) Installation space requirements for the single-module unit Unit: mm(in.)
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Page 33
GREE Photovoltaic Direct-driven Inverter Multi VRF Units (3) Installation space requirements for triple-module unit Unit: mm(in.) 2. When there is wall (or similar obstruction) above 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 (See Fig.1). -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Space dimension for multiple-module unit For keeping good ventilation, make sure there is no obstruction 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. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Anti-monsoon installation requirement for unit connecting exhaust duct 4. Considering snow in outdoor unit installation 5. During the installation of the ODU, induced and exhaust pipes must be connected. In addition, the aperture opening rate of shutters must be at least 80%, and the angle between the shutters and the horizontal plane should be less than 20°. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units the ODU, three basic parts are required: 1) ODU; 2) canvas; and3) steel-plate ventilating duct. The ODU must be interconnected with the ventilating duct through canvas to prevent abnormal vibration and noise generated by the steel-plate ventilating duct. The joint part must be tightly sealed with tin foil to avoid air leakage. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 3 Step 4 Step 5 Step 6 Method 2 1) Install the ODU (2) and steel-plate ventilating duct (1). Take out the grille from the top of the top case component. Use the prepared canvas casing inside out (4) to cover the surroundings over the top of the unit. -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units damaged. As a result, the anti-corrosion performance of the unit top case will be reduced. Step 1 Step 2 Step 3 Step 4 6. When the effective area of air intake is less than 70% of the total air intake area of all ODUs, an induced draft fan is also required. -
Page 39: Requirements On Foundation Installation
GREE Photovoltaic Direct-driven Inverter Multi VRF Units packaging bag may suffocate children to death. • When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make Outdoor Unit unstable, resulting in a fall.
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Page 40: Odu Fixing
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Install where it can sufficiently support the weight of the outdoor unit. If the support strength is not enough, the outdoor unit may drop and hurt people. Install where the outdoor unit may not fall in strong wind or earthquake. If there is a fault in the supporting conditions, the outdoor unit may fall and hurt people.
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Page 41: Piping Connection
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5 PIPING CONNECTION 5.1 Schematic Diagram of Piping Connection…
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Page 42: Schematic Diagram Of Piping Sequence
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5.2 Schematic Diagram of Piping Sequence GMV-Y72WM/C-F(U) GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U).
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Page 43
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Pipe connection diagram of outdoor modules Each ODU system can be connected to multiple IDUs. Detailed information about the number of units to be connected and capacity ranges is shown in the following table:… -
Page 44: Allowable Pipe Length And Drop Height Among Indoor And Outdoor Units
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5.3 Allowable Pipe Length and Drop Height among Indoor and Outdoor Units Y type branch joint is adopted to connected indoor and outdoor units. Connecting method is shown in the figure below. Remark: Equivalent length of one Y-type manifold is about 0.5m (1-3/4feet).
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Page 45
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Allowable Value R410A Refrigerant System Fitting Pipe m(ft.) Equivalent length from the first branch to the furthest ≤40(131-1/4) L6+L7+L8+L9+j piping (1) Height difference Outdoor unit at upper(2) ≤90(295-1/4) —— between outdoor Outdoor unit at lower(2) ≤90(295-1/4) -
Page 46: Connection Pipe Among Outdoor Modules
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5.4 Connection Pipe among Outdoor Modules Unit: m(ft.) NOTICE! When the distance between outdoor units exceeds 2m (6-1/2ft.), U-type oil trap should be added at low pressure gas pipe. a+c≤10m(32-7/8ft.);b+c≤10m(32-7/8ft.);d≤10m (32-7/8ft.). The pipeline between outdoor units should be installed as follows:…
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Page 47: Fitting Pipe Between Outdoor Unit And The First Manifold
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5.5 Fitting pipe between Outdoor Unit and the First Manifold 1. For single module system, pipe size (between outdoor unit and the first manifold) is determined by that of outdoor unit. Pipe size of basic outdoor module is shown as follows:…
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Pipe between module and branch of ODU Basic Module Gas Pipe mm(in.) Liquid Pipe mm(in.) GMV-Y72WM/C-F(U) Φ19.05(3/4) Φ9.52(3/8) GMV-Y96WM/C-F(U) Φ22.2(7/8) Φ9.52(3/8) GMV-Y120WM/C-F(U) Φ28.6(1-1/8) Φ12.7(1/2) Select the branch of outdoor module: Model Select the branch of outdoor module ML01/A Branch of outdoor module must be a Y-type manifold. -
Page 49
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Pipe size between manifolds Total capacity of upstream modules Q(Btu/h) Gas Pipe mm(inch) Liquid Pipe mm(inch) Ф34.9(1-3/8) Φ15.9(5/8) 216000<Q≤240000 240000<Q≤336000 Ф34.9(1-3/8) Φ19.05(3/4) 336000<Q Φ41.3(1-5/8) Φ19.05(3/4) 4. Fitting pipe between the first manifold from indoor unit and the end manifold from outdoor unit… -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units Total rated capacity of outdoor Pipe between ODU and the first branch of IDU modules (multi-modular system) Gas pipe size mm(in.) Liquid pipe size mm(in.) GMV-Y264WM/C-F(U) Ф34.9(1-3/8) Ф19.05(3/4) GMV-Y288WM/C-F(U) Ф34.9(1-3/8) Ф19.05(3/4) GMV-Y312WM/C-F(U) Ф34.9(1-3/8) Ф19.05(3/4) -
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units 6. Fitting pipe between manifolds Pipe size (between two manifolds at indoor unit side) is based on the total capacity of upstream indoor unit(s). Dimension of the pipe of indoor branch Total capacity of downstream indoor unit(s) C(Btu/h) Gas Pipe mm(in.) -
Page 52: Pipe Installation And Insulation
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Pipe between indoor branch and IDU Rated capacity of indoor unit C(Btu/h) Gas Pipe mm(in.) Liquid Pipe mm(in.) 48500<C≤72000 Φ19.05(3/4) Φ9.52(3/8) 72000<C Φ22.2(7/8) Φ9.52(3/8) 6 PIPE INSTALLATION AND INSULATION 6.1 Pipe Installation for the Cooling System 6.1.1 Precautions on Pipe Direction Design…
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GREE Photovoltaic Direct-driven Inverter Multi VRF Units be reserved for maintenance. (5) The riser should be installed in the air conditioning tube well, and the horizontal pipe should be placed in the ceiling, if possible. Always careful not to leak the refrigerant during welding. -
Page 54
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Precautions: During bending, there must be no corrugation or deformation inside the pipe. The welding point of the pipe should not be at the bending part. The distance between the nozzle welding joint and the bending part should be less than 100 mm (3.94inch). -
Page 55
GREE Photovoltaic Direct-driven Inverter Multi VRF Units (2) Construction of fixing bolts for devices Ensure sufficient rigidity for the devices. Take anticorrosive measures for exposed part of built-in fittings. If the foundation must be waterproof, takes waterproof measures. (3) Construction of steel casings Equip a steel casing for all pipes which are led through the wall or floor. -
Page 56
GREE Photovoltaic Direct-driven Inverter Multi VRF Units The pipe led through a wall or beam must be fixed by a support, hanger, or bracket on both ends at the position 300 mm (11-7/8inch) away from the hole. 6.1.3.4 Pipe Connection (1) Flaring Connection The refrigerant pipes and IDUs are connected by using the flare opening. -
Page 57
GREE Photovoltaic Direct-driven Inverter Multi VRF Units The nitrogen flow is above 4-6 L/min (pressure of 0.02 to 0.05 Mpa) and must be regulated based on the pipe caliber. During welding, nitrogen-filling protection must be conducted; otherwise, the remaining substance in pipeline will cause blockage or leakage to the system (e.g. -
Page 58
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Unit: mm(in.) (5) Fixing of manifolds. There must be three fixing point for both horizontal and vertical installation of the 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 pipe from the welding point… -
Page 59
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Seal the branch Seal the branch which are not used which are not used Inlet Inlet Outlet Outlet B view A view A view B view gas side liquid side A view °… -
Page 60
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5) The downstream of T-type manifold pipe cannot connect with Y-type manifold pipe and T-type manifold pipe Equivalent length of one Y-type manifold pipe is about 0.5m (19-11/16in.). Equivalent length of branch of IDU is 0.5m (19-11/16in.). -
Page 61
Then insert the copper pipe to proper depth. A concave bag for positioning is available to the manifold purchased from Gree. (9) Because the manifold structure is complex, perform with care to ensure tight insulation. -
Page 62
GREE Photovoltaic Direct-driven Inverter Multi VRF Units When all of the pipes of indoor unit finish welding, dry nitrogen must be used to blow and clean the pipes. Otherwise, the remaining substance in pipeline will cause blockage or leakage to the system (e.g. -
Page 63: Pipe Installation For The Condensate Water System
GREE Photovoltaic Direct-driven Inverter Multi VRF Units heating mode for 24 hours: (1) Power off all units. (2) Turn off the two stop valves of the liquid pipe. (3) Remove the drier filter. (4) Short connect with a copper pipe with the same caliber and vacuumize the pipe.
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Page 64
GREE Photovoltaic Direct-driven Inverter Multi VRF Units (8) The condensate water pipe cannot be tied with the refrigerant pipe. (9) A ventilation hole must be provided on the top of the drain pipe to ensure smoother discharge of condensate water. -
Page 65
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Install drain trap connectors as shown in the following figure. Install a drain trap connector for each unit. The drain trap connector shall be installed in a way that facilitates trap cleaning. (5) During condensate water pipe installation, ensure a distance above 500mm (19-5/8in.) between the pipe and the electric box of the unit for maintenance. -
Page 66: Requirements On Independent Drainage For Each Idu
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2) The lifting pipe for drainage must be provided as shown in the following figure. Unit: mm (in.) 3) The drain pump shall be fixed securely. Otherwise, abnormal noises will be generated. 6.3. Requirements on Independent Drainage for Each IDU Requirements on independent drainage design for each IDU are as follows: (1) There must be a proper inclination for the drain pipe.
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Page 67
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 6.4.1.1.3 Procedure of Insulation (1) Select insulation materials based on design requirements. (2) Wear the insulation sleeve before connecting refrigerant pipes. Users cannot cut the insulation material apart and then wrap up with ties after connecting the pipes by welding. -
Page 68: Electric And Controller Installation
GREE Photovoltaic Direct-driven Inverter Multi VRF Units the air duct. 7 ELECTRIC AND CONTROLLER INSTALLATION Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. Make sure to use specified wires for connections so that no external force is imparted to terminal connections.
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Page 69: Installation Of The Power Cable
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Elaborate the method with the installation personnel on site no matter which method is adopted. 7.2 Installation of the Power Cable 7.2.1 Precautions (1) The air conditioning unit is category 1 electrical appliance which requires reliable grounding.
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Page 70
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 7.2.2 Requirements on Power Cable Configuration Configure a circuit breaker to each unit for short circuit and overload protection. In addition, configure a general circuit breaker to both the indoor and ODUs to switch on or switch off the general power of the IDU or ODU. -
Page 71
GREE Photovoltaic Direct-driven Inverter Multi VRF Units NOTE: The maximum number of connected IDUs (n) is determined based on the capacity of the ODU. For details, see the description on unit capacity configuration. (2) External Connection for Modularly Connected Units… -
Page 72
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 7.2.3 Procedure for Installing the Power Cable (1) Knock off the knockouts used for threading the external power cable, fit the threading rubber ring to the hole, and thread the power cable through the hole. Connect L1, L2, L3, of the power cable, and the grounding cable to L1, L2, L3, on the power terminal block and the grounding screw next to the terminal block respectively. -
Page 73
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 7.3 INSTALLATION OF THE COMMUNICATION SYSTEM The CAN communication network is adopted for Photovoltaic Direct-driven Inverter Multi VRF system. Manual DIP or identification on polarities of the communication power is not required for the IDU. -
Page 74
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 7.3.2 Connection of Communication Cables The communication bus of indoor and ODUs must be connected in series instead of in star mode. The last IDU of the bus shall be connected to a matching resistor (placed in the package of the ODU). -
Page 75
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 7.3.3 Communication Cable Connection Method and Procedure 7.3.3.1 Communication cable connection between the IDUs and ODUs The communication cable between the IDUs and ODUs is connected via interface D1/D2 on the terminal block XT2. Connection modes for the single-module system and multi-module system are shown in the following figures. -
Page 76
GREE Photovoltaic Direct-driven Inverter Multi VRF Units NOTICE! ① If there are multiple modules for the modular ODU, the master unit must be the first ODU module on the communication cable and cannot be connected to the IDU. (The master unit is set by SA8 on the main board of the ODU.) -
Page 77
GREE Photovoltaic Direct-driven Inverter Multi VRF Units One wired controller controlling multiple IDUs Two wired controllers controlling multiple IDUs 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. -
Page 78: Installation Of Photovoltaic System
GREE Photovoltaic Direct-driven Inverter Multi VRF Units values. Below are user’s parameter settings: Parameter Parameter Default Parameter scope Remark code name value Set up 01: master wired When 2 wired controllers control one or more address for controller IDUs, they shall have different addresses.
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Page 79
GREE Photovoltaic Direct-driven Inverter Multi VRF Units input circuit; any connection point between air conditioner and grid may cause fire hazard or electric shock. (2) The air conditioner may have unrecoverable damage due to electric discharge of internal component. When operating this device, please follow the static power protection regulation. -
Page 80: Installation Project Of Photovoltaic System
② Above configuration shall be done by the professional engineering personnel who is accredited by Gree. Customer shall not change the configuration; otherwise unit malfunction may be caused. 8.2 Installation Project of Photovoltaic System The system construction is as below. The installation of photovoltaic system mainly includes the installation of Photovoltaic Array and GMV, the lay-out of cable and power device.
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Page 81
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 8.2.2 Installation of Photovoltaic Module The photovoltaic module shall be checked by related department of Party A before using. Common photovoltaic module is shown as below. Place it carefully during transportation to avoid collision among photovoltaic sub-accessories and among photovoltaic sub-accessories and supports. -
Page 82
GREE Photovoltaic Direct-driven Inverter Multi VRF Units operation power voltage are in accordance with the related requirement. Finally, adjust the overcurrent circuit breaker of cabinet, relays and mechanical linkage. 8.2.5 Installation of Intelligent Converter Step 1: Use a “cross” screwdriver to loosen the panels of the air conditioner unit and remove the panels. -
Page 83
GREE Photovoltaic Direct-driven Inverter Multi VRF Units GMV-Y72WM/C-F(U) GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U): Step 3: Remove the Intelligent Converter from the box and remove bolts(four M5X30 bolts and two M6X16 bolts) and nuts(two M6 nuts) from the packaged materials of the air conditioner. Then assemble… -
Page 84
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 4:Place the Intelligent Converter upstanding and put into the air conditioner unit. GMV-Y72WM/C-F(U): GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U):… -
Page 85
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 5:In order to fix the Intelligent Converter, a total of 11 M6 bolts are needed. You are advised to get these bolts from the packaged materials of the air conditioner and fix the bolts with the sleeve tool. -
Page 86
GREE Photovoltaic Direct-driven Inverter Multi VRF Units GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U): Step 6:Assemble the panels after wiring. GMV-Y72WM/C-F(U) -
Page 87
GREE Photovoltaic Direct-driven Inverter Multi VRF Units GMV-Y96WM/C-F(U) and GMV-Y120WM/C-F(U):… -
Page 88: Vacuumization And Desiccation For The Refrigerant System
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 9 VACUUMIZATION AND DESICCATION FOR THE REFRIGERANT SYSTEM Works for the refrigerant system include cleaning and desiccating the pipes, performing an air-tightness test, and perfusing refrigerant. 9.1 Air-Tightness Test 9.1.1 Importance of the Air-tightness Test Air-tightness of the multi-module air conditioning system mainly refers to the tightness of the refrigerant pipes, which ensures secure and reliable running of the air conditioner.
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Page 89: Vacuumization And Desiccation For The System
GREE Photovoltaic Direct-driven Inverter Multi VRF Units simultaneously for pipes on outdoor sides and cannot be increased for pipes on one side. Before performing the air-tightness test, do not conduct insulation or wrapping at the welding joints，Otherwise, leak source cannot be detected quickly.
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Page 90: Refrigerant Perfusion
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 9.2.2.2 Precautions: (1) The gas pipe and liquid pipe must be vacuumized at the same time. (2) Turn off the valve before powering off the vacuum pump. (3) Keep vacuuming for 2 hours. The vacuum meets the requirement if the pressure displayed by the vacuum gauge does not increase.
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Page 91
GREE Photovoltaic Direct-driven Inverter Multi VRF Units (2) ∑Refrigerant charging amount B of every module. Refrigerant charging amount B of every module Rated Capacity(1000Btu/h) kg(Pounds) IDU/ODU rated capacity Quantity of collocation ratio C included IDUs(N) N<4 50%≤C≤90% N≥4 0.5(1.1) 0.5(1.1) 0.5(1.1) -
Page 92
GREE Photovoltaic Direct-driven Inverter Multi VRF Units After confirming that there is no leakage from the system, when the compressor is not in operation, charge additional R410A with specified amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit. -
Page 93: Method For Perfusing Refrigerant
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 10.2 Method for Perfusing Refrigerant Refrigerant perfusion for the VRF system is classified into pre-perfusion and perfusion during running. 10.2.1 Refrigerant Pre-perfusion Step 1: Connect the high pressure gauge pipe to the detection opening of the liquid pipe, the low pressure gauge pipe to the detection opening of the gas pipe, and the medium gauge pipe to the vacuum pump.
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Page 94
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 5: Turn on the valve of the high pressure gauge (while keep the valve of the high pressure gauge turned off) and then perfuse refrigerant to the system. Record the change of weight of the refrigerant tank. -
Page 95
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 2: Turn on the valves for the liquid and gas pipes of each module completely. For the modular unit, the oil-equalizing valve of each module also needs to be turned on. Step 3: Make the system to run in commissioning mode via the commissioning software or the main board of the ODU. -
Page 96: Chapter 3 Commissioning Operation
GREE Photovoltaic Direct-driven Inverter Multi VRF Units CHAPTER 3 COMMISSIONING OPERATION 1 SECURITY REQUIREMENTS 1.1 precautions for Construction All commissioning and maintenance personnel must learn and strictly comply with construction security specifications. Security measures must be taken especially for outdoor operations.
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Page 97
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Name Meaning Factory Settings Remark Switch SA1_ca Capacity DIP Defines the rated Defined based on The factory settings cannot be changed. pacity switch capacity of the unit. the model. Defines and differentiates The address DIP switch is used only when… -
Page 98
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Meanings and setting methods of function DIP switches are as follows: 1.3.1.1 Unit Capacity DIP Switch (SA1_capacity) The unit capacity DIP switch (SA1_capacity) has been set upon factory departure. It is unnecessary to further set the DIP switch. In addition, users are not allowed to change the DIP switch settings. -
Page 99
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 6) Suppose the centralized control address (SA2-Addr-CC) of the master unit for one GMV system is set to “1 1 1 1 X”, this system is the master mode system and its running mode will take the priority. -
Page 100
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Precautions: ① When the DIP switch setting is not covered in the above scope, a DIP switch setting exception fault may occur. ② Only one compressor can be set to emergency mode on a module. -
Page 101
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ② Only one compressor can be set to emergency mode on a module. ③ The compressor emergency operation mode is valid only in a single-module multi-compressor system. ④ The module emergency operation mode is valid only in a system with more than two modules connected in parallel. -
Page 102
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ③ The default factory setting is “00”. ④ The system cannot continually run for more than 120 hours in fan emergency operation status. Once 120 hours are exceeded, the entire unit will be forcibly stopped and the limited operation code “Ad”… -
Page 103
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Master module must be set correctly; otherwise units cannot be started up. 1.3.1.9 DIP Switch Example (1) Explanation of DIP switch positions On the DIP switch, “ON” indicates “0” status and the opposite direction indicates «1” status. -
Page 104
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Function Button Name and Meaning Button Code Function Meaning Indicates the upward selection button. DOWN Indicates the downward selection button. FUNCTION Indicates the function button, used for function settings. CHECK Indicates the query button, used for function query. -
Page 105
GREE Photovoltaic Direct-driven Inverter Multi VRF Units If above function settings are incorrect, unit will run abnormal and compressor may even be damaged. (2) Description of Functions 1) A2 Refrigerant recovery operation This function partially recovers refrigerants in a faulty module or IDU pipeline during unit maintenance. -
Page 106
GREE Photovoltaic Direct-driven Inverter Multi VRF Units low-noise operations. The nighttime automatic silent mode falls into nine categories: Starting the Silent Mode X Hours Stopping the Nighttime Silent Silent Code after the Daytime Temperature Mode after Continual Operations Noise Degree… -
Page 107
GREE Photovoltaic Direct-driven Inverter Multi VRF Units consumption. The setting scope is as follows: Code Highest Output Capacity 100% (factory settings) Note: The cooling or heating effect may fall off after the capacity limitation is set.
n5 Indoor unit project number offset… -
Page 108
GREE Photovoltaic Direct-driven Inverter Multi VRF Units After selecting the functions to be set, press «SW7» to confirm entering function settings. The master unit is displayed as follows: LED1 LED2 LED3 Function Code Display Mode Current Progress Display Mode Current Status… -
Page 109
GREE Photovoltaic Direct-driven Inverter Multi VRF Units LED1 LED2 LED3 Function Code Display Mode Silent Mode Code Display Mode Current Status Display Mode On the master unit, press «SW6» to return to the upper level (press «SW6» in setting status to return to the upper level;… -
Page 110
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 1: Confirm entering the A2 refrigerant recovery operation settings. The master unit is displayed as follows: LED1 LED2 LED3 Refrigerant Function Code Display Mode Display Mode Current Status Display Mode Recovery Code… -
Page 111
GREE Photovoltaic Direct-driven Inverter Multi VRF Units If no operations are performed after the high-pressure value displayed on LED3 continually blinks for three minutes, the entire unit will be forcibly stopped. On the master unit, press «SW6» to return to the upper level for restoring the standby status of the entire unit (press «SW6″… -
Page 112
GREE Photovoltaic Direct-driven Inverter Multi VRF Units If no button operations are performed for five minutes, the function setting automatically quits and the unit restores the current status. (Press «SW6» in setting status to return to the upper level; press «SW6″… -
Page 113
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 2: Press «SW7» to send the project number offset command. The master module is displayed as follows: LED1 LED2 LED3 Function Code Display Mode Current Progress/Mode Display Mode Current Status Display Mode After 10 seconds, the system quits this mode and restores the normal operation mode. -
Page 114
GREE Photovoltaic Direct-driven Inverter Multi VRF Units The digital LED2 displays the number of IDUs (thousands-place hundreds-place) and the digital LED3 displays the number of IDUs (tens-place ones place). For example, if the number of IDUs is 75, «0075» is displayed. -
Page 115
Operation frequency of compressor 2 Operation frequency of outdoor fan Module high-pressure °C Module low-pressure °C Discharge temperature of compressor 1 °C Discharge temperature of compressor 2 °C This parameter is invalid for the Discharge temperature of compressor 3 °C GMV5 series. -
Page 116
Parameter Name Unit Remark This parameter is invalid for the Discharge temperature of compressor 4 °C GMV5 series. This parameter is invalid for the Discharge temperature of compressor 5 °C GMV5 series. This parameter is invalid for the Discharge temperature of compressor 6 °C… -
Page 117
GREE Photovoltaic Direct-driven Inverter Multi VRF Units LED1 LED2 LED3 Function Code Display Mode Current Progress/Mode Display Mode Current Status Display Mode Blinking Blinking Blinking Press «SW7» on the master unit to enter the next-level menu selection. The display is as follows:… -
Page 118
GREE Photovoltaic Direct-driven Inverter Multi VRF Units LED1 LED2 LED3 Parameter Code Display Mode Parameter Code Display Mode Parameter Code Display Mode Blinking Blinking ↓ LED1 LED2 LED3 Parameter Code Display Mode Parameter Code Display Mode Parameter Code Display Mode ↓… -
Page 119: Commissioning Process
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 1.3.5.2 Restoring Factory Settings Restoring Factory Prompt for Successful Setting Method Remark Settings Settings Press and hold «SW8» on All LEDs blink for All factory settings of the ODU are restored Restoring setting 1 the master unit for more three seconds.
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Page 120: Required Files And Tools For Engineering Commissioning
(1) Make sure that the following tools or instruments are prepared before commissioning. (2) Make sure that the commissioning software is correct before commissioning. (3) The professional aftersales commissioning software provided by GREE should be used for commissioning of GREE VRF system.
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Page 121
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.2 Pre-commissioning Check Installation environment check covers the heat exchange environment of unit and electromagnetic radiant components. All requirements should comply with national and local electrical standards. For any installation incompliance, records should be made for providing an analysis basis during refrigerating system testing. -
Page 122
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Example: The outdoor environment temperature is 30°C(86℉) and the indoor environment temperature is 28°C(82℉). The pressure gauges connected with the system show that the high pressure value is 28°C(82℉) and the low pressure value is 27°C(81℉). The difference between the outdoor environment temperature and either pressure value is less than 5°C K. -
Page 123
GREE Photovoltaic Direct-driven Inverter Multi VRF Units power factor decreases. Therefore, the power capacity should not be less than the maximum power of the unit. 4) Check air switches and fuse links for their models and using methods. a. Commercial air conditioning units must be installed with independent air switches, fuse links, and similar protectors. -
Page 124
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.2.4 Communication System Check 1) The following communication contents must be checked again before commissioning: Do main boards correctly communicate with each other between outdoor unit modules? Are DIP switches of the master outdoor unit correctly set? -
Page 125
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Spot Check for Commissioning Spot Check Item Qualified Do the circuit breaker and leakage switch comply with unit design requirements? Is the spacing between the power cable and the TV set larger than 1 m? -
Page 126
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Cooling mode when the outdoor environment temperature is higher than 20°C(68℉). Heating mode when the outdoor environment temperature is lower than 20°C(68 ℉ ). (3) Before starting commissioning, make sure again that stop valves of all basic modules of the ODU have been completely opened. -
Page 127
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Progress Description for Commissioning Phases —— Commissioning Code Progress Code Status Code LED1 LED2 LED3 Meaning Progress Display Display Display Code Code Code Status Status Status The system detects communication failure between master unit and inverter compressor driver. -
Page 128
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Progress Description for Commissioning Phases —— Commissioning Code Progress Code Status Code LED1 LED2 LED3 Meaning Progress Display Display Display Code Code Code Status Status Status — — — — — — No meaning. -
Page 129
GREE Photovoltaic Direct-driven Inverter Multi VRF Units simultaneously displayed and historical data can be stored and queried with the second method. (For details about these methods, refer to respective instructions.) ③ Commissioning through the Portable Commissioning Tool(For details about these methods, refer… -
Page 130
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 6: Find the module with its address being “01”, which is the master unit. On the master unit, press and hold «SW7» for more than five seconds to enter unit commissioning. Step 7: Wait for the unit to automatically operate commissioning steps 01 and 02. -
Page 131
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Commissioning Code Progress Code Status Code Progress LED1 LED2 LED3 Code Display Status Code Display Status Code Display Status 03_Module quantity confirmation If the displayed quantity is inconsistent with the number of actually connected modules, check whether communication cables are correctly connected between modules in power-off status. -
Page 132
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Commissioning Code Progress Code Status Code Progress LED1 LED2 LED3 Meaning Code Display Status Code Display Status Code Display Status The system detects communication failure between master unit and inverter compressor driver. The system detects… -
Page 133
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Corresponding faults include: Commissioning Code Progress Code Status Code LED1 LED2 LED3 Progress Meaning Display Code Display Status Code Display Status Code Status XXXX/ The system detects 07_Component Corresponding component failure of detection for IDU fault code IDU. -
Page 134
GREE Photovoltaic Direct-driven Inverter Multi VRF Units requirements, «U4 lack of refrigerant protection» is prompted and the main board is displayed as follows. The unit cannot enter the next commissioning step. In this case, check for leakage or append refrigerants till the exception disappears. -
Page 135
GREE Photovoltaic Direct-driven Inverter Multi VRF Units If it is confirmed to enable the unit, press «SW7». The main board is displayed as follows and the unit automatically enters the next commissioning step. Commissioning Code Progress Code Status Code Progress… -
Page 136
Step 20: Deliver the unit for use and let users know the precautions. (2) Commissioning Through the Commissioning Software Step 1: Install commissioning software to the computer and connect monitoring communication cables (for details about the operation method, see the «GREE Central Air Conditioning Commissioning Software» section). -
Page 137
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 2: Completely cover the front panel of ODU. Step 3: In power-off status of ODU, set the ODU to a corresponding static pressure mode according to static pressure design requirements for outdoor engineering. For details about the setting method, see the «Outdoor Fan Static Pressure Setting DIP Switch (SA6_ESP_S)»… -
Page 138
GREE Photovoltaic Direct-driven Inverter Multi VRF Units For the phase with «OK» displayed, a manual confirmation is required for entering the next commissioning step. Click » » to display relevant information detected on this phase, which provides references for selection. Click «Close» to close the information (the number of commissioning units is displayed in «3 Confirm ODU Basic Module NO.»… -
Page 139
GREE Photovoltaic Direct-driven Inverter Multi VRF Units » » indicates that commissioning is not passed on the phase and troubleshooting is required (after troubleshooting, the unit automatically enters the next step if no «OK» exists or click «OK» to enter the next step). -
Page 140
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Startup». When an exception occurs in step 10, click «Back» to return to step 9 and then click «OK» in step 9 to perform commissioning again for step 10. If a U6 fault (valve exception) occurs in step 10, users can click «Skip»… -
Page 141
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Note: During commissioning, users must listen to the operating sound of outdoor and indoor fans and compressors to check for exceptions. (3) Commissioning Through the Portable Commissioning Tool Step 1: Connect the Portable Commissioning Tool. Please refer to the operation manual of Portable Commissioning Tool for the connection method. -
Page 142
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 5: Once it entered the engineering debugging, Portable Commissioning Tool will display current progress of engineering debugging (step#). As for step 3, 4, 8 and 12, it needs to click “OK” button to enter into the next step debugging. “Skip” can be selected for step 10. Detailed information check is available for step 3, 4, 5, 6 and 7. -
Page 143: References For Proper Unit Operation Parameters
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.4 References for Proper Unit Operation Parameters Commissioning Item Parameter Name Unit Reference Value °C/ Outdoor environment —— temperature ℉ ●When the system compressor is running, the normal discharge pipe or top temperature for cooling is 70-95°C(167-203 ℉ ), which is more than 10°C(18 ℉…
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Page 144
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Commissioning Item Parameter Name Unit Reference Value ●The drainage effect of IDU is smooth and thorough, and no Drainage adverse-slope water storage exists in condensing drainage —— — system pipes. The ODU can implement drainage completely from the drainage pipe, without drops from the unit foundation. -
Page 145: Chapter 4 Maintenance
GREE Photovoltaic Direct-driven Inverter Multi VRF Units CHAPTER 4 MAINTENANCE 1 SYSTEM FAILURE CODE TABLE Indoor: Error Code Content Error Code Content Malfunction of lower water temperature Malfunction of IDU sensor of water tank Malfunction of ambient temperature Protection of indoor fan…
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Page 146
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Outdoor: Error Code Content Error Code Content Malfunction of ODU PCB of wired controller is abnormal Current sensor of compressor 2 is High-pressure protection abnormal Current sensor of compressor 3 is Discharge low-temperature protection… -
Page 147
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Error Code Content Error Code Content Malfunction of temperature sensor of oil Drive PFC protection of compressor return 4 Over-current protection of inverter Malfunction of driving board of fan compressor Drive IPM module protection of… -
Page 148
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Debugging: Error Code Content Error Code Content Alarm because ODU quantity is Preheat time of compressor is insufficient inconsistent Wrong setting of ODU’s capacity Abnormal communication of converter code/jumper cap Power supply phase sequence protection… -
Page 149
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Status: Error Code Content Error Code Content Unit waiting for debugging Shielding status Refrigerant recovery operation of SE operation setting of system after-sales Defrosting Compulsory defrosting Limit setting for max. capacity/output Oil-return capacity… -
Page 150: Exception And Troubleshooting
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2 EXCEPTION AND TROUBLESHOOTING 2.1 How to Locate a Faulty IDU Promptly Use the IDU project number enquiry and faulty IDU locating function to locate a faulty IDU or wired controller’s corresponding IDU as follows when multiple IDUs are running in one place:…
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Page 151: Form Analyzing
GREE Photovoltaic Direct-driven Inverter Multi VRF Units NOTE: ① If the enquired IDU is normal, no fault code will be displayed in the temperature area; if the unit indoor has multiple faults, fault codes will be displayed in the temperature area at an interval of 3 seconds.
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Page 152
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Fault code Fault Possible reasons Solution 1) Check if the cable connecting the control board and the compressor’s drive board is loose. If yes, reconnect it; 1. The communication cable is not 2) Check if the cable connecting the control board Communication connected. -
Page 153
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Fault code Fault Possible reasons Solution The SA8 dial switch of the ODU is 1. Switch the SA8 dial switch of an ODU to 00; not switched to 00. No controlling unit 2. Replace the control board or switch an ODU’s The SA8 dial switch of the ODU is SA8 dial switch to 00. -
Page 154
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2) Solution of project number conflict: ① Manual setting on the commissioning software: Use the commissioning software to set IDUs’ project numbers separately in every system or reset projects numbers in multiple systems. -
Page 155
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Figure 4 If the conflict is solved, the system will return to the normal status and IDUs can be operated, as shown in Figure 5: Figure 5 If project commissioning is not finished and all the IDUs’ project numbers need to be reset, click Set… -
Page 156
GREE Photovoltaic Direct-driven Inverter Multi VRF Units All IDUs Project Number shown in Figure 2. As shown in Figure 6, the pop-up box comprises two parts: Systems Selection, where you can choose the system to be reset; Settings box, where you can give the resetting instruction. -
Page 157
GREE Photovoltaic Direct-driven Inverter Multi VRF Units LED1 LED2 LED3 Function Code LED Status Progress LED Status Status LED Status Flicker Flicker Flicker (2) Press SW2 (▼) on the controlling unit and select n5. Short press SW7 to show the following… -
Page 158
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Fault Fault Possible reasons Solution code 1. The compressor drive board is faulty; 1. Replace the compressor drive board; Compressor drive IPM 2. Thermal gel is not applied evenly 2. Apply thermal gel evenly on the IPM over-temperature on the IPM module;… -
Page 159: System Faults
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Fault Fault Possible reasons Solution code 1. Does the voltage of the input power 1. Lower the voltage of the input power Fan drive DC bus high cable of the whole system exceed 460 cable to the required range;…
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Page 160
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Confirmation Description Description Description method method method Touch the pipe along the flowing direction 3.1 The fluid Replace and solder ——… -
Page 161
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Confirmati Description Description Description method method on method 1.2.1 The When the system is control wire of working Connect the 1.2 The… -
Page 162
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.2 Pressure Exception Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Description Description Confirmation method Description method method 1. The stop valve of the Manual Fully open the ODU is not ——… -
Page 163
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Description Description Confirmation method Description method method Connect the stop valve of the module fluid pipe and air pipe to the high and 4.2 The high… -
Page 164
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Description Description Confirmation method Description method method 1.1 The outdoor ambient It is a normal temperature in Measure the outdoor phenomenon ——… -
Page 165
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Fault Primary reason Secondary reason Tertiary reason Fault Solution code Confirmation Confirmation Description Description Confirmation method Description method method Stop the whole system. Test the system’s balance pressure 20 minutes later and convert the pressure 4.1 The low… -
Page 166
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.3 Poor Cooling/Heating Performance Possible reasons Primary reason Secondary reason Tertiary reason Feedback from Exception Solution user Confirmati Confirmation Confirmation Description Description Description method method method 1. The stop valve of the Manual… -
Page 167
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reasons Primary reason Secondary reason Tertiary reason Feedback from Exception Solution user Confirmati Confirmation Confirmation Description Description Description method method method A. When the IDU 4.1 The air intake is working in the… -
Page 168
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reason：—— Troubleshooting: status code, no troubleshooting. 2.3.4.3 “A3” Defrosting status Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: This code is status code, which means the system has entered into defrosting status, the operating IDU fan will stop for 5-10 minutes. -
Page 169
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.7 “A8” Vacuum mode Error display: ODU mainboard will display Error judgment condition and method: This code is status code, which means the system has entered into vacuum mode, corresponding expansion valve and solenoid valve will open. -
Page 170
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: status code, no troubleshooting. 2.3.4.12 “AJ” Filter dirty alarm Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: This code is status code, which means the indoor unit has entered filter dirty period, the filter need cleaning. -
Page 171
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.16 “Ad” Limited operation status Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: This code is status code, which means the system has set the emergency operation status, but emergency operation time has exceed the limited requirements, at this time, the unit is not allowed to conduct emergency operation. -
Page 172
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.18 “b2” Defrost temperature sensor 1 error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 173
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Poor contact between temperature sensor and terminal in mainboard interface ■Temperature sensor is abnormal ■Detecting circuit is abnormal Troubleshooting: 2.3.4.20 “b4” Malfunction of liquid temperature sensor of sub-cooler Error display: ODU mainboard, IDU wired controller and IDU receive light board will… -
Page 174
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.21 “b5” Malfunction of gas temperature sensor of sub-cooler Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 175
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.22 “b6” Malfunction of inlet tube temperature sensor of vapor liquid separator Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 176
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.23 “b7” Malfunction of exit tube temperature sensor of vapor liquid separator Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 177
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.24 “b8” Malfunction of outdoor humidity sensor Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 178
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.25 “b9” Malfunction of gas temperature sensor of heat exchanger Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 179
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.26 “bA” Malfunction of oil-return temperature sensor Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value;… -
Page 180
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.27 “C0” IDU and ODU, IDU wired controller communication error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: If no communication between ODU and IDU or between IDU and wired controller in continuous 30s, report the error. -
Page 181
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.28“C2” main control and inverter compressor drive communication error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: If ODU hasn’t received inverter compressor drive board data in continuous 30s, report the error. -
Page 182
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.29 “C3” main control and inverter fan drive communication error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: If ODU hasn’t received inverter fan drive board data in continuous 30s, report the error. -
Page 183
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.30 “C4” IDU missing error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: If ODU hasn’t received inverter fan drive board data in continuous 30s, report the error. -
Page 184
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.31 “C5” IDU project code conflict Error display: debugging software and long-distance monitoring software will display Error judgment condition and method: Check IDU project code. All IDUs with the same project codes will report this error. But this error will be displayed and require elimination only when debugging software, central controller and long-distance monitoring software are connected. -
Page 185
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.33 “C8” Compressor emergency operation status. Error display: ODU mainboard will display Error judgment condition and method: If any compressor in the module is set with emergency operation status, the mainboard will display “C8”… -
Page 186
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reason：—— Troubleshooting: status code, no troubleshooting. 2.3.4.36 “CH” Rated capacity ratio is too high Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: The system detects rated capacity of online IDUs and ODUs. -
Page 187
GREE Photovoltaic Direct-driven Inverter Multi VRF Units the network ■Detecting circuit is abnormal Troubleshooting: 2.3.4.39 “CF” Multiple master controlling units error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Mainboard detects the DIP switch (SA8) of master controlling unit to judge if it is master controlling unit. -
Page 188
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.40 “CJ” System address code conflict Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: When multiple refrigerant system is connected through CAN2 network of unit mainboard, it is allowable to have only one master system in this network. -
Page 189
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: Make sure there are two wired controllers in maximum to control one or several IDUs; when two wired controllers control one or several IDUs, enter wired controller parameter setting (P13) to set the address of one wired controller as 02, that is slave wired controller. -
Page 190
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reason： ■Address chip is abnormal ■Memory chip is abnormal. Replace main control board directly Troubleshooting: Replace main control board directly 2.3.2.44 “d3” Ambient temperature sensor error Error display: IDU wired controller and IDU receive light board will display… -
Page 191
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Inlet pipe temperature sensor is abnormal ■Detecting circuit is abnormal Troubleshooting: 2.3.4.46 “d6” Outlet pipe temperature sensor error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value. -
Page 192
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.47 “d7” Humidity sensor error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value. -
Page 193
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.49 “dA” IDU network address error Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Through testing the IDU address chip and IP address, if address chip cannot be read, IDU IP is 0 or IP is in conflict, report the error. -
Page 194
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Communication of wired controller touch button board and display board IIC is abnormal; ■Read and write of wired controller memory chip IIC is abnormal (when memory chip is existed); Troubleshooting: 2.3.4.51 “dC” Capacity DIP switch setting error… -
Page 195
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Poor contact between air outlet temperature sensor and terminal in mainboard interface ■Air outlet temperature sensor is abnormal ■Detecting circuit is abnormal Troubleshooting: 2.3.4.53 “db” Project debugging Error display: ODU mainboard, IDU wired controller and IDU receive light board will… -
Page 196
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Refrigerant charging amount is too much; ■System pipeline is blocked; Troubleshooting:… -
Page 197
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.55 “E2” Compressor low discharge temperature protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Test the compressor discharge temperature and high pressure value. If the difference between discharge temperature and high pressure value is lower than 10 ℃… -
Page 198
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.56 “E3” System low pressure protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Test compressor suction pressure through low pressure sensor. When pressure value is lower than -41 ℃… -
Page 199
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Low pressure sensor is abnormal; ■Outdoor or indoor fan is not working properly; ■IDU filter or air duct is blocked (cooling mode); ■Ambient temperature is too low; ■Refrigerant charging amount is insufficient; ■System pipeline is blocked;… -
Page 200
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: E3 system low pressure protection The low pressure sensor fails, Does the low pressure shown on the pressure gauge reach the Replace the pressure sensor protection value? Add refrigerant according to Is there enough refrigerant? the design and pipeline. -
Page 201
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.57 “E4” Compressor high discharge temperature protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Test the compressor discharge temperature through compressor discharge pipe and shell top temperature sensor. -
Page 202
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting:… -
Page 203
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.58 “F0” ODU mainboard error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check if the reading of address chip, memory chip and clock chip of ODU mainboard is normal. If the data of address chip, memory chip and clock chip cannot be read, it is abnormal. -
Page 204
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■High pressure sensor is abnormal ■Detecting circuit of sensor is abnormal Troubleshooting: 2.3.4.60 “F3” Low pressure sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of low pressure sensor through sensor detecting circuit and judge the range of AD value;… -
Page 205
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.61 “F5” Compressor 1 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 206
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.62 “F6” Compressor 2 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 207
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.63 “F7” Compressor 3 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 208
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.64 “F8” Compressor 4 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 209
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.65 “F9” Compressor 5 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 210
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.66 “FA” Compressor 6 discharge temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensors through temperature sensors circuit and judge the range of AD value;… -
Page 211
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.67 “FH” Compressor 1 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 212
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.68 “FC” Compressor 2 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 213
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.69 “FL” Compressor 3 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 214
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.70 “FE” Compressor 4 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 215
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.71 “FF” Compressor 5 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 216
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.72 “FJ” Compressor 6 current sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of current sensor through detecting circuit and judge the range of AD value; if the sampled AD value exceeds upper limit and lower limit in 3 seconds continuously, report the error. -
Page 217
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.73 “FU” Compressor 1 shell top temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value. -
Page 218
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.74 “Fb” Compressor 2 shell top temperature sensor error Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge the range of AD value. -
Page 219
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.75 “H0” Fan drive board error Error display: IDU wired controller will display Error judgment condition and method: Check the error code on IDU wired controller. If IDU wired controller displays H0, you should also check the error code on nixie tube of ODU main control board. -
Page 220
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.76 “H1” Fan drive board operation error Error display: IDU wired controller will display Error judgment condition and method: Check the error code on IDU wired controller. If IDU wired controller displays H1, you should also check the error code on nixie tube of ODU main control board. -
Page 221
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Fan drive board is abnormal. Troubleshooting: 2.3.4.79 “H5” Inverter fan overcurrent protection Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If H5 is displayed, it indicates inverter fan overcurrent protection Possible reason：… -
Page 222
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.80 “H6” Drive IPM module protection of fan Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If H6 is displayed, it indicates Drive IPM module protection of fan Possible reason：… -
Page 223
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.81 “H7” Fan drive temperature sensor error Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If H7 is displayed, it indicates fan drive temperature sensor error Possible reason：… -
Page 224
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.82 “H8” Fan drive IPM high temperature protection Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If H8 is displayed, it indicates fan drive IPM high temperature protection Possible reason：… -
Page 225
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.83 “H9” Desynchronizing protection of inverter compressor Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If H9 is displayed, it indicates Desynchronizing protection of inverter compressor Possible reason：… -
Page 226
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.84 “HC” AC input voltage of drive of inverter fan Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If HC is displayed, it indicates AC input voltage of drive of inverter fan Possible reason：… -
Page 227
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.86 “HL” Fan drive DC bus low voltage protection Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If HL is displayed, it indicates fan drive DC bus low voltage protection Possible reason：… -
Page 228
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.88 “J0” Other module protection Error display: ODU mainboard will display . IDU and IDU receive light board will not display. Error judgment condition and method: In multiple modules system, if any module causes system stoppage, the modules without errors will display this error to indicate other module has error, which causes unit stoppage. -
Page 229
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.89 “J1” Compressor 1 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 230
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.90 “J2” Compressor 2 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 231
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.91 “J3” Compressor 3 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 232
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.92 “J4” Compressor 4 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 233
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.93 “J5” Compressor 5 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 234
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.94 “J6” Compressor 6 overcurrent protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the operation current of compressor through current sensor or circuit. When current exceeds the limit, the unit will stop for protection. -
Page 235
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.95 “J7” Gas-mixing protection of 4-way valve Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the system high pressure and low pressure through pressure sensor. -
Page 236
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.96 “J8” System high pressure ratio protection Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the system high pressure and low pressure through pressure sensor. When the ratio between system high pressure and low pressure is bigger than 8 after starting operation, the unit will stop for protection. -
Page 237
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.98 “L1” Indoor fan protection Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Check if the rotation speed of IDU is too slow, or it stops rotation, or protection signal of outdoor fan is transferred. -
Page 238
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.99 “L3” Water full protection Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Check the status of IDU float switch. When water level is too high, float switch is activated, so water… -
Page 239
GREE Photovoltaic Direct-driven Inverter Multi VRF Units full protection happens. Possible reason： ■IDU is installed improperly ■Drainage pump is broken ■Float switch operates abnormally ■IDU mainboard is abnormal Troubleshooting:… -
Page 240
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.100 “L4” Power supply overcurrent protection Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: Check if the power supply current from IDU to wired controller is normal. If power supply current is too big, it is judged that the current is abnormal. -
Page 241
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.102 “L7” No master IDU Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: No master IDU error will happen when there is no master IDU in the system Possible reason：… -
Page 242
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.103 “L9” Group-controlled IDU quantity inconsistency Error display: IDU wired controller and IDU receive light board will display Error judgment condition and method: If the IDU quantity connected with wired controller exceeds 16 sets or actually connected IDU quantity is inconsistent with the set group-controlled IDU quantity. -
Page 243
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Make sure the IDUs connected with one wired controller belong to the same series. 2.3.4.105 “LC” Mismatch of IDU and ODU models Error display: IDU wired controller and IDU receive light board will display… -
Page 244
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Error judgment condition and method: This code is function setting status code, which indicates that the system has entered the limit setting status of max output capacity. “10” means max output capacity is 100%; “09” means max output capacity is 90%;… -
Page 245
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.112 “n9” Online IDU quantity inquiry status Error display: ODU mainboard will display Error judgment condition and method: This code is the inquiry status code. In this case, online IDU quantity can be inquired. -
Page 246
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Possible reason：—— Troubleshooting: status code, no troubleshooting. 2.3.4.117 “nF” Fan only model status Error display: ODU mainboard will display Error judgment condition and method: This code is the fan only model status code, which indicates that the system has been set to fan only unit status. -
Page 247
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Error judgment condition and method: Check error code through IDU wired controller. If IDU wired controller displays P1, please also check the error code displayed on the nixie tube of ODU main control board. Detailed error of compressor drive board can be judged according to the error code on main control board. -
Page 248
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.122 “P5” Inverter compressor overcurrent protection Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If P5 is displayed, it indicates inverter compressor overcurrent protection Possible reason：… -
Page 249
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting: 2.3.4.123 “P6” Inverter compressor IPM protection Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If P6 is displayed, it indicates inverter compressor overcurrent protection Possible reason：… -
Page 250
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ■Poor contact of compressor UVW wire; ■Connection sequence of compressor UVW wire is wrong; ■Compressor is broken; ■System is blocked; ■Compressor drive board IPM module is broken. Troubleshooting:… -
Page 251
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.124 “P7” Compressor drive board temperature sensor error Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If P7 is displayed, it indicates compressor drive board temperature sensor error Possible reason：… -
Page 252
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.126 “P9” Desynchronizing protection of inverter compressor. Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If P9 is displayed, it indicates Desynchronizing protection of inverter compressor. -
Page 253
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting:… -
Page 254
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.127 “PC” Compressor drive current detecting circuit error Error display: ODU mainboard will display Error judgment condition and method: Check the error code on nixie tube of ODU main control board. If PC is displayed, it indicates compressor drive current detecting circuit error Possible reason：… -
Page 255
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.129 “PL” Compressor drive DC bus low voltage protection Error display: ODU mainboard will display Error judgment condition and method: If the mainboard detects that input power cord voltage is lower than 320V, it will report low voltage protection. -
Page 256
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting:… -
Page 257
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.131 “U0” Insufficient compressor preheating time Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: If it is detected that the oil temperature preheating time of compressor before startup doesn’t reach 8 hours, it will report this error. -
Page 258
GREE Photovoltaic Direct-driven Inverter Multi VRF Units causes phase loss or reverse), it will report this error Possible reason： ■The power supply connected to the unit is incorrect, phase loss or reverse happens ■Detecting circuit is abnormal Troubleshooting: 2.3.4.134 “U4” Lack of refrigerant protection… -
Page 259
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Error judgment condition and method: During commissioning, check if ODU cut-off valve is opened through detecting system parameter by pressure sensor. If the parameter is abnormal, it will indicate that confirming the open of cut-off valve and then press SW5 to enter the next step after confirming. -
Page 260
GREE Photovoltaic Direct-driven Inverter Multi VRF Units parameter is abnormal, it will indicate this error. Possible reason： ■Electronic expansion valve doesn’t operate normally; ■ODU pipeline is blocked; Troubleshooting: 2.3.4.138 “UC” Setting of master IDU is done Error display: ODU mainboard, IDU wired controller and IDU receive light board will… -
Page 261
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2.3.4.140 “UE” auto charging of refrigerant is invalid Error display: ODU mainboard, IDU wired controller and IDU receive light board will display Error judgment condition and method: When outdoor ambient temperature exceeds the temperature range of auto charging of refrigerant (normal temperature range is 0~40 ℃… -
Page 262
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Troubleshooting:… -
Page 263: Maintenance Of Key Parts
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3 MAINTENANCE OF KEY PARTS 3.1Cautions on ODU AP1 Replacement 3.1.1Distinguishing Master Module from Slave Module Before replacing ODU AP1, determine the module is a master ODU or a slave ODU. They can be distinguished based on: ①…
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Page 264: Method And Notice For Replacement Of Compressor
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Inter-system IDU and ODU Main Power Running Reserved communication communication system System1 System1 M a i n — Power system System2 System2 If the LEDs flash, the ODU and IDUs normally communicate; if the LEDs are steadily on, communication is faulty.
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Page 265
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Evaporating Temp. (°C) The figure below shows current curves that change with evaporating temperature and condensing temperature while compressor works at 60Hz. Evaporating Temp. (°C) The figure below shows current curves that change with evaporating temperature and condensing temperature while compressor works at 90Hz. -
Page 266
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Electric expansion valve: This valve will reset for each power-on or power-off action. Touch the valve and you will feel its vibration during the reset action. A crack sound will be heard as well. -
Page 267
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Labels on the 4-way valve and their meanings: D – connects to exhaust; E – connects to evaporator of indoor unit; S – connects to intake of gas separator; C – connects to condenser; When the system runs in cooling, the pipe at side C works at high pressure and high temperature and the pipes at side E and S work at low pressure and low temperature;… -
Page 268
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.2.1.2 Unit cannot start normally Step 1: Disconnect power supply and open the electric junction box of compressor to see whether wiring of the compressor is intact. Step 2: Measure the resistance between two wiring terminals (U, V, W). The value of resistance should range within 0.5~2Ω:… -
Page 269
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 3: It’s also necessary to check the solenoid vlaves of system, including electric expansion valves, oil return valves, and oil balance valves. Please refer to the preceding section for the check method. -
Page 270
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Check the rubbers for oil separator, gas separator, oil balancer and drying filter. If they are lost during transportation, cover the parts with tape to kep the compressor dry and airtight inside. Caution! Compressor lubricant must be kept completely airtight. -
Page 271
GREE Photovoltaic Direct-driven Inverter Multi VRF Units two pairs of wrench, PVC insulation tape, and several pieces of cable tie. Step 2: Disconnect power supply Determine according to the previous conditions that the compressor needs to be replaced. Then turn off the power switch of outdoor units and disconnect the cable of power supply and the power cables of indoor units. -
Page 272
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 6: Remove the compressor Confirm the condition of faulty compressor, including its position and model. The handling procedure is stated below:… -
Page 273
GREE Photovoltaic Direct-driven Inverter Multi VRF Units After the compressor and oil separator are removed, check the oil quality. If oil is contaminated, replace the compressor, oil separator, and gas/liquid separator. If oil changes to black, check the oil of other modular units. -
Page 274
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 2) Check oil balancer… -
Page 275
GREE Photovoltaic Direct-driven Inverter Multi VRF Units After the gas separator is taken out, check whether it contains impurities. The check method is as below: Use a transparent container to hold the liquid. Check liquid impurities and colors and seal the container for further factory inspection. -
Page 276
GREE Photovoltaic Direct-driven Inverter Multi VRF Units regardless whether the separator contains impurities or is faulty. 4) Check oil return pipes Remove oil return pipes and balance pipes. Check the oil volume and impurity. Caution Confirm the parts that need to be replkaced. After they are removed, make sure that all their openings are sealed with adhesive tape. -
Page 277
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Components of oil balance valve 2… -
Page 278
GREE Photovoltaic Direct-driven Inverter Multi VRF Units ① Clear oil return pipes ③Check liquid pipe filter For other pipeline parts, clear them based on actual situation. If you do not replace the parts immediately after clearing the pipeline, make sure to seal the pipes with adhesive tape, which can… -
Page 279
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 9: Replace the compressor Cautions on replacement of compressors: 1) Before replacing a new compressor, remove the sealing rubbers and weld the compressor with corresponding pipes. During welding, charge nitrogen into the pipes. Because the gas inlet and outlet pipes are made of copper plated steels, you need to prepare special welding rods that contain 5% or more silver. -
Page 280
GREE Photovoltaic Direct-driven Inverter Multi VRF Units source to the inlet/outlet pipe. If the pipe is big, cover it with tape as well. Make sure nitrogen can smoothly flow through the gas separator. Step 11: Check/Replace oil balancer The original oil balancer, if is found to have no impurity or other objects, can continue to be used. -
Page 281
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 12: Check/Replace oil separator Detach the oil separator. If it is found to have contained impurities, replace it. -
Page 282
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 13: System leak test 1) Check each welding joint for abnormalities. Observe each welding joint whether it is smooth and doesn’t have obvious holes. 2) Then, charge high pressure nitrogen into the system for leak test. If you are only repair outdoor units and are sure that indoor units are normal, you can charge nitrogen into the system of outdoor unit only. -
Page 283
Photovoltaic Direct-driven Inverter Multi VRF Units Caution Lubricant is of great importance to the normal running of compressor. You should follow the requirements of Gree to add qualified lubricant of the specific trademark and ensure the correctness of charging amount. Step 15: Vacuum pumping After lubricant is properly added, keep evacuating until the internal pressure reaches the absolute pressure 0kgf/cm2 and the gauge pressure reaches -1kgf/cm2. -
Page 284
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 16: Charge refrigerant Before charging refrigerant, check its manufacturer, package, and print information. Besides, check refrigerant pressure and quality against the saturation pressure/ temperature list. Check method: Measure the pressure of the entire tank of refrigerant. Check it by referring to the saturation pressure/ temperature list. -
Page 285
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.2.3 Replacement and Notice for Compressor Drive Module Step 1: Make sure power is disconnected. Set a multimeter to AC voltage gear and measure voltage between two of the lines (L1, L2, L3). Continue the following steps as long as each result is 0V (Sometimes, a multimeter may have error and reads other than 0V). -
Page 286
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Step 4: Loosen the screws on compressor drive, as shown in the figure below: Step 5: Replace a new compressor drive. Before replacement, apply some silicone tape onto the IPM module. Apply some silicone tape on it evenly… -
Page 287
GREE Photovoltaic Direct-driven Inverter Multi VRF Units… -
Page 288: Disassembly And Assembly Procedure Of Outdoor Unit Main Parts
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.3 Disassembly and Assembly Procedure of Outdoor Unit Main Parts 3.3.1 Disassembly and Assembly of Compressor Removal procedure of compressor Note: Before removing the compressor, make sure no refrigerant is inside the pipeline and power has been disconnected.
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Page 289
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of compressor Note: Before removing the compressor, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure ●Remove the compressor from 5． Remove the the chassis. -
Page 290
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of compressor Note: Before removing the compressor, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure 9 . Check and ●Check various parts then install front connection wires;… -
Page 291
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of 4-way valve Note: Before removing the 4-way valve, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure Use a screwdriver to unscrew 3 、… -
Page 292
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of 4-way valve Note: Before removing the 4-way valve, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure ●Check various parts 7 、 Check and connection wires;… -
Page 293
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of electronic expansion valve Note: Before removing the electronic expansion valve, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure Disassemble ●Remove the coil from the electric electric expansion valve. -
Page 294
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of electronic expansion valve Note: Before removing the electronic expansion valve, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure Check ●Check various parts and install the front connection wires;… -
Page 295
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procesure of oil separator Note: Before removing the oil separator, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure 4. Remove the ●Remove the oil separator oil separator. -
Page 296
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.3.5 Disassembly and Assembly of Gas Liquid Separator Removal procedure of gas liquid separator Note: Before removing the gas liquid separator, make sure no refrigerant is inside the pipeline and power has been disconnected. -
Page 297
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of gas liquid separator Note: Before removing the gas liquid separator, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure 5. Install a new ●Put the gas liquid separator… -
Page 298
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.3.6 Disassembly and Assembly of Plate Type Heat Exchanger Removal procedure of plate type heat exchanger Note: Before removing the plate type heat exchanger, make sure no refrigerant is inside the pipeline and power has been disconnected. -
Page 299
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Removal procedure of plate type heat exchanger Note: Before removing the plate type heat exchanger, make sure no refrigerant is inside the pipeline and power has been disconnected. Step Diagram Operation Procedure 5. Install a new ●Screw the support of plate… -
Page 300: Maintenance Of Photovoltaic Parts
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.4 Maintenance of Photovoltaic Parts The photo-voltaic power generation system associates with large power, therefore it is necessary to conduct regular maintenance as required by the regular inspection period and fill the forms “Record of Regular Inspection”, “Record of Maintenance”…
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Page 301
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Angle of the photo-voltaic cell part array combining Overall situation of the building the building Waterproof of the rooftop with Anchoring structure photo-voltaic photo-voltaic system system Stressed part of the building Surrounding of the photo-voltaic… -
Page 302
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 1) Use dry or damp soft and clean cloth to wipe the surface. Never use corrosive dissolvant or a hard object to wipe the surface. 2) Clean when the irradiant is lower than 200W/m and do not use liquid whose temperature varies too much from the parts. -
Page 303
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 5 DC circuit breaker of the output bus terminal should be able to disconnect promptly and reliably. 6 Lightning arrester of the combining box should be effective. 3.5.3 AC Power Distribution Cabinet Before checking on the AC power distribution cabinet, please inform relevant staff of the start and end time of power cut and prepare all necessary tools. -
Page 304
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3.5.4 Wires and Cables of Photo-Voltaic Parts 1 Cables must not work under overload. Lead sheath of the cables should not get bulged or cracked. 2 The parts of cables in and out of equipment should be sealed well. There should not be any hole whose diameter is larger than 10mm. -
Page 305: Appendixes
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 3 The planted bars or rear bolts that are used to locate the photovoltaic cell array must not loose. Prefabricated base should be adopted to install the photovoltaic cell array and the base must be placed steadily, neatly and firmly.
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Page 306: Debug Parameter Record List
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 4.3 Debug Parameter Record List Project name Unit model Debugged by Date ODU rated capacity General IDU rated Total length of refrigerant (kW) capacity (kW) pipes (m) Maximum fall of IDUs Fill amount of refrigerant (kg)
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Page 307: Common Parameter Lists
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 4.4 Common Parameter Lists 4.4.1 R410A Refrigerant Pressure / Saturation Temperature List Corresponding Corresponding Corresponding Temperature Temperature Temperature saturation pressure saturation pressure saturation pressure °C °F °C °F °C °F -45.4 1.54 22.34 15.8…
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Page 308
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Resistance Voltage Temperature Resistance Voltage °C °F kΩ °C °F kΩ 121.6 0.362 165.2 2.28 2.865 0.381 2.205 2.877 108.7 168.8 2.133 2.889 102.9 0.42 170.6 2.064 2.901 97.4 0.44 172.4 1.997 2.912… -
Page 309
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Resistance Voltage Temperature Resistance Voltage °C °F kΩ °C °F kΩ 12.07 1.829 249.8 0.561 3.181 87.8 11.57 1.863 251.6 0.547 3.184 89.6 11.09 1.897 253.4 0.532 3.187 91.4 10.63 1.931 255.2 0.519… -
Page 310
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Resistance Voltage Temperature Resistance Voltage ℉ ℉ °C kΩ °C kΩ -18.4 319.2 0.195 154.4 3.729 2.781 -16.6 0.206 156.2 3.603 2.796 -14.8 282.2 0.218 3.481 2.811 265.5 0.231 159.8 3.364 2.825 -11.2… -
Page 311
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Resistance Voltage Temperature Resistance Voltage ℉ ℉ °C kΩ °C kΩ 66.2 26.17 1.429 0.8799 3.161 25.01 1.466 240.8 0.8562 3.165 69.8 23.9 1.503 242.6 0.8333 3.168 71.6 22.85 1.54 244.4 0.8111 3.171… -
Page 312
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 4.2.2.3 Voltage list of 50 kΩ discharge temperature sensors (including top temperature sensor, and discharge air temperature sensor) Temperature Resistance Voltage Temperature Resistance Voltage ℉ ℉ °C kΩ °C kΩ 911.56 0.036 141.8 11.736… -
Page 313
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Resistance Voltage Temperature Resistance Voltage ℉ ℉ °C kΩ °C kΩ 77.349 0.378 222.8 2.7922 2.58 60.8 73.896 0.393 224.6 2.715 2.595 62.6 70.503 0.41 226.4 2.6404 2.611 64.4 67.338 0.427 228.2 2.5682… -
Page 314
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 4.4.3 Voltage / Pressure Lists of Pressure Sensors 4.4.3.1 High-pressure sensor (R410A) Temperature Absolute pressure Voltage Temperature Absolute pressure Voltage ℉ ℉ °C °C 25.5 0.102 60.8 1300 188.5 -38.2 26.7 0.111 62.6 1337 193.9… -
Page 315
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Absolute pressure Voltage Temperature Absolute pressure Voltage ℉ ℉ °C °C 39.2 132.2 0.887 3849 558.1 4.018 136.3 0.917 141.8 3932 570.1 4.106 42.8 140.5 0.947 143.6 4017 582.5 4.197 44.6 144.9 0.979… -
Page 316
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Temperature Absolute pressure Voltage Temperature Absolute pressure Voltage ℉ ℉ °C °C -38.2 26.7 0.665 62.6 1337 193.9 2.971 -36.4 0.683 64.4 1375 199.4 3.047 -34.6 29.3 0.701 66.2 1413 204.9 3.123 -32.8 30.6… -
Page 317: Exploded Views And Spare Part List
GREE Photovoltaic Direct-driven Inverter Multi VRF Units 4.5 Exploded Views and Spare Part List Modle：GMV-Y72WM/C-F (U) Product Code: CN870W0240 Name of part Part code Quantity Rear Grill ‘01574105 Coping ‘01264100030P Diversion Circle ‘10474100 Axial Flow Fan Sub-Assy ‘10338702 Brushless DC Motor…
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Page 318
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Name of part Part code Quantity One way Valve ‘04324001 Electronic Expansion Valve ‘43044100172 Bidirection Strainer ‘07210044 Gas Tube Filter ‘072190511 Plate-Type Heat Exchanger ‘00904100005 Right Side Plate ‘01314713P Base Frame Assy ‘000043060031… -
Page 319
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Modle：GMV-Y96WM/C-F(U)、 GMV-Y120WM/C-F(U) Product Code：CN870W0220、CN870W0230 Name of part Part code Quantity Rear Grill ‘01574100002 Coping ‘01264100006P Diversion Circle ‘10474100002 Axial Flow Fan ‘10434100002 Brushless DC Motor ‘1570412404 Brushless DC Motor ‘1570412403 Nozzle for Adding Freon… -
Page 320
GREE Photovoltaic Direct-driven Inverter Multi VRF Units Name of part Part code Quantity Electronic Expansion Valve ‘43044100172 Bidirection Strainer ‘07210044 Gas Tube Filter ‘072190511 Plate-type Heat Exchanger ‘00904100005 Right Side Plate ‘01314713P Base Plate Sub-Assy ‘017000060052P Gas-liquid Separator ‘07424138 Oil Separator… -
Page 321
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Схема Gree U-Match R410a.pdf
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Схемы Gree Hummer GWCN07-12A2-3NK1-3AA GWHN07-12A2-3NK1-3AA.pdf
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Схема Gree Artful GWCN09AANK1A1AI.pdf
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Схема Gree Hummer GWHN24DCNK1A1AI.pdf
Схема Gree Hummer GWHN24DCNK1A1AO.pdf
Инструкция по монтажу Gree GMV.pdf
Инструкция по монтажу Gree канальный кондиционер.pdf
Инструкция по монтажу GREE GMV Rm.pdf
Инструкция по монтажу Gree GMV2 Pdm.pdf
Инструкция по монтажу Gree FGR5-7,5H(A-C) FGRD10H(A-C) FGR10-12H(A-G).pdf
Руководство по установке Gree FGR16-45.pdf
Руководство по установке Gree GPCN12A2NK3CA.pdf
Руководство по установке Gree FGR20-40BNA-M FGR25CNA-M.pdf
Коды ошибок Gree мультизональная система GMV.pdf
Сертификат соответcтвия GREE 2012-2017.pdf
Сертификат GREE 2015-2017.pdf
Сертификат соответcтвия Gree по 11.02.2015.pdf
Расстояние между кроншейнами для наружных блоков Gree.pdf
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