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Related Manuals for LONGI LR7-54HVB M Series
Summary of Contents for LONGI LR7-54HVB M Series
- Page 1 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG LONGI PV MODULE INSTALLATION MANUAL...
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Page 2: Safety Note
Safety Note •This manual elaborates on installation and safety use information for PV power generating modules (hereinafter referred to as module) of LONGi. Please abide by all safety precautions in this guide and local regulations. • Installation of modules requires professional skills and knowledge and is to be carried out by qualified personnel. -
Page 3: Table Of Contents
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG CONTENTS INTRODUCTION LAWS AND REGULATION 3.1 MODULES IDENTIFICATION 3.2 JUNCTION BOX STYLE AND WIRING METHOD 3.3 REGULAR SAFETY GENERAL 3.4 ELECTRICAL PERFORMANCE SAFETY INFORMATION 3.5 OPERATION SAFETY 3.6 FIRE SAFETY 4.1 INSTALLATION SITE AND WORKING ENVIRONMENT INSTALLATION 4.2 SELECTION OF TILT ANGLES... -
Page 4: Introduction
LONGi will not take any responsibility if patent rights or the third party rights are infringed by use of modules. LONGi reserves the rights for modifying product manual or installation manual without advanced notice. It is recommended to visit our website regularly at www.longi.com for the latest version of this installation manual. -
Page 5: Laws And Regulation
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG LAWS AND REGULATION Laws and Regulation The mechanical and electrical installation of photovoltaic modules should comply with national laws, local regulations and industry standards, including the requirements of the Safety Production Law, Environmental Protection Law, national standards and electricity specifications, to ensure the human safety of people and the photovoltaic module system. -
Page 6: Modules Identification
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG GENERAL INFORMATION General Information 3.1 Modules Identification Three labels on the module contain the information below: 1.Nameplate: product type, rated power, rated current, rated voltage, open circuit voltage, short circuit current under testing conditions, certification indicator, maximum system voltage, etc. - Page 7 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG Drain Hole Mounting Hole Grounding Hole Frame Glass Solar Cell Backsheet Silica Gel Junction Box Name Plate Cable Connector Mounting Hole Grounding Hole Drain Hole Bar Code Figure 1 Typical Mechanical Drawing of Mono-facial Modules （Please refer to section 3.2 for the location of the junction box.
- Page 8 Figure3 Junction Box Style and Wiring Method 3.3 Regular Safety The application level of LONGi Solar module is Class Ⅱ, which can be used in systems operating at > 50 V DC or >240 W, where general contact access is anticipated;...
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Page 9: Operation Safety
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG 3.4 Electrical Performance Safety PV modules can produce DC current under sunlight. Any contact of exposed metal at module's wiring parts may result in electrical shock or burn. Any contact of 30 V or larger DC Voltage can be fatal. -
Page 10: Fire Safety
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG Before unpacking, please place the modules in a ventilated, dry, and rainproof site, avoid direct outdoor exposure and accompany with shading/rain shelter facilities. If it require a long term storage, please do not remove the original pack- aging and ensure that the original packaging is intact. -
Page 11: Installation Conditions
Do not install modules at places that are possible to be flooded. LONGi suggests that modules be installed in the working environment with the temperature of -40 ℃ to 40 ℃ of which is the monthly average highest and lowest temperature of the installation sites. The extreme working environment temperature for modules is -40 ℃... -
Page 12: Tilt Angle
If the modules output power meets the acquired load under the period of the worst irradia- tion in the year, the modules should be able to meet the load of the whole year. If the LONGi modules are used in... -
Page 13: Mechanical Installation
Module and bracket system connection can be realized by mounting holes, clamps or embedded systems. Installation shall follow the demonstration and suggestions below. If installation mode is different, please consult LONGi customer service personnel and obtain approval. Otherwise, modules may be damaged and limited warranty will be invalid. (* Note: regarding to Anti-Soiling modules only, short edge design has applied on prevention of dust from accumulating on modules, therefore , do not install at the short edge. - Page 14 Oval Washer, Flange nuts, bolts and clamps used together, and other reinforcement installation methods. For specific enquiry, please consult LONGi's customer 5.2.1 Bolts Mounting The LONGi’s module has mounting holes matching M6 and M8 bolts. See Figure 4 for installation details and corre- sponding hole positions. Mounting Diagram Applicable for modules 790mm(790 hole）...
- Page 15 For framed PV module, the length of the clamp be at least 50mm the clamp must maintain an overlap of 10-12 mm with the frame of the module (For clamp installation with an overlap of less than 10mm, LONGi technicians need to be consulted for assessment).
- Page 16 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG Thickness of clamp at least 4mm Length of the clamp at least 50mm Length of the clamp Overlap between clamp and at least 50mm frame as 10~12mm Overlap between clamp and frame as 10~12mm...
- Page 17 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG Clamps are mounted at the corners of short frame.(Method ⑤） Figure 7 Mono-facial Module Installation Position The maximum test load of framed mono-facial modules: Bolts Mounting Bolts Mounting Clamps Mounting Clamps Mounting...
- Page 18 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG 5.4 Installation and Mechanical Load of Bifacial module Bifacial modules can be mounted by bolts or clamps. The mounting method and maximum test load are shown as follow. (The unit of distance and length in the table below is millimeter (mm), and the unit of pressure is Pascal (Pa)).
- Page 19 Four-hole Type Method ② Method ① Method ③ Method ⑥ Method ⑤ LR7-72HVD-xxxM* ﹢5400，-2400 ﹢3600， -2400 ﹢5400，-2400 ﹢3600， -2400 The above data is based on the static load requirements of IEC61215 standard (Tested by LONGi or third party certification institution).
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Page 20: Electrical Installation
The open circuit voltage value under the expected lowest temperature shall not exceed the maximum system voltage value allowed by modules and other values required by DC electric parts. (LONGi modules maximum system voltage is DC1000 V/DC1500 V---actually system voltage is designed based on the selected module and inverter model) The correction value of VOC can be calculated by the following formula. -
Page 21: Cables And Wiring
(such as EN50618 approval). Need to select appropriate wire specifications to reduce voltage drop. LONGi requires that all wiring and electrical connections comply with the appropriate National Electrical Codes. When cables are fixed on the bracket, avoid mechanical damaging cables or modules. Do not press cables by force. -
Page 22: Bypass Diode
6.4 Bypass Diode LONGi solar module junction box contains bypass diode which is in parallel connection with the cell string. If hot spot occurred, the diode will come into operation to stop the main current from flowing through the hot spot cells in order to prevent module over-heated and performance loss. -
Page 23: Grounding
Mounting holes on modules that are not occupied can be used for installing grounding devices. The third party grounding device can be used for grounding of LONGi modules but such grounding method shall be proved to be reliable. Grounding device shall be operated in line with stipulations of the manufacturer. -
Page 24: Operation And Maintenance
Do not use acid and alkaline detergents to clean modules. Do not use tool with rough surface to clean in any case. In order to avoid potential risk of electrical shock or burn, LONGi suggests cleaning the modules during early morning or evening with low irradiance and low modules temperature especially for the hot regions. - Page 25 ①The "*" identifier behind the module model indicates that the height of the module frame is 30mm. ②LR4-xxx-xxxM module and LR5-xxxHIH/HIB/HIBB/HIBD-xxxM module installation load and certification informa- tion are shown in the V16 version of LONGi PV Module Installation Manual. LONGi DG Installation Manual V19 Draft 2025.1.23...
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