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Summary of Contents for LONGI LR5-66HTH M Series
- Page 1 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG PV Module Installation Manual...
- Page 2 •This manual elaborates on installation and safety use information for PV power generating modules (hereinafter referred to as module) of LONGi Solar Technology Co., Ltd. (hereinafter referred to as LONGi). Please abide by all safety precautions in this guide and local regulations.
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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: General Information
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 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. The specific version is subject to the corresponding specification.）...
- 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;...
- Page 9 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 According to the corresponding certification standards, the fire rating of LONGi Mono-facial modules is UL Type 1 or 2 or IEC Class C, the fire rating of LONGi bifacial modules is UL Type 29 or IEC Class C.
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Page 11: Installation Conditions
LONGi modules passed the IEC 61701 salt spray corrosion test, but the corrosion may still occur where the modules frame is connected to the bracket or where the grounding is connected. LONGi modules can be installed ≥50 m away from the ocean side. - Page 12 LONGi suggests that the modules be installed at a large angle, so module surface dust can be washed away easily by rainfall and frequency of cleaning can be reduced; For small Angle installation, it is recommended to increase the cleaning frequency according to the actual situation to avoid long-term accumulation of large amounts of dust, which will affect the appearance and performance of the modules.
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Page 13: Mechanical Installation
INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG MECHANICAL INSTALLATION Mechanical Installation 5.1 Regular Requirements Make sure that installation method and mounting structure are solid enough to meet the expected load-bearing requirement, which is requisite assurance from PV system installer. Installation bracket system shall be tested and inspected by the third party testing institution with static mechanical analysis capacity in accordance with local national standards or international standards. - Page 14 For specific enquiry, please consult LONGi's customer service.） 5.2.1 Bolts Mounting The LONGi’s module has mounting holes matching M6 and M8 bolts. See Figure 4 for installation details and corresponding hole positions. Mounting Diagram Applicable for modules 790mm(790hole）...
- Page 15 Suggestion 1: M8 bolt tightening torque range: 12-16 N•m M6 bolt tightening torque range: 8-12 N•m Suggestion 2: When using LONGi 30 mm height frame module, it is recommended to select overall length ≤ 25mm fasteners. (If there is a special model, consult LONGi customer service personnel).
- Page 16 INSTALLATION MANUAL FOR LONGi PHOTOVOLTAIC MODULES OF DG Clamp Bolt Laminated part Laminated part Bolt Washer Aluminum frame aluminum frame Washer Washer Clamp Spring washer Washer Bracket Spring washer Bracket Figure 6 Clamp Installation of Mono-facial Modules 5.3 Installation and Mechanical Load of Mono-facial Module Mono-facial modules can be mounted by bolts or clamps.
- Page 17 ﹢5400，-2400 ﹢5400，-2400 The above data is based on the static load requirements of IEC61215 standard (Tested by LONGi or third party certification institution) 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.
- Page 18 ±2400 ﹢5400，-2400 ﹢3600， -2400 LR5-72HGD-xxxM* ﹢5400，-2400 ﹢3600， -2400 ±2400 ﹢5400，-2400 ﹢3600， -2400 LR7-72HGD-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 19: 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 20 (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 21 LONGi PHOTOVOLTAIC MODULES OF DG 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.
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Page 22: 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 manufac-... -
Page 23: Operation And Maintenance
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 24 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 information are shown in the V16 version of LONGi PV Module Installation Manual.
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