Installation Manual for LONGi Solar PV Modules V10
Applicable Module Type LR6-60-***M Monofacial Module Bifacial Module LR6-72-***M Status Module Structure IEC、UL single glass LR6-60BK-***M LR6-72BK-***M IEC、UL single glass LR6-60HV-***M LR6-72HV-***M IEC、UL single glass LR6-60PB-***M LR6-72PB-***M IEC、UL single glass LR6-60PE-***M LR6-72PE-***M IEC、UL single glass LR6-60PH-***M LR6-72PH-***M IEC、UL single glass LR6-60MP-***M LR6-72MP-***M IEC single glass LR6-60MPH-***M LR6-72MPH-***M IEC single glass LR6-60HPH-***M LR6
Contents 3 1 / Introduction 3 2 / Laws and Regulation 4 3 / General Information 4 6 8 9 9 10 3.1 Modules Identification 11 4 / Installation Conditions 11 12 4.1 Installation Site and Working Environment 13 5 / Mechanical Installation 13 13 14 14 15 5.1 Regular Requirements 17 17 18 19 5.3 Bifacial module Mechanical Installation 21 6 / Electrical installation 21 22 23 23 23 6.1 Electrical Performance 24 7 / Grounding 25 8 / Operation and maintenance 25 26 26 8.1 Cleaning 3.
1 Introduction Electrical and mechanical installation information will be introduced in this installation manual, so please read and understand the information before installing LONGi modules. In addition, this manual also contains some safety information that you shall be familiar with. All contents in this manual are intellectual properties of LONGi which originates from long term of technical exploration and experience accumulation of LONGi.
3 General Information 3.1 Modules identification 3 labels on the modules contain 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. 2. Current classification label: Rated working current.(H indicates High, M indicates Medium, L indicates Low) 3.
1 2 12 3 4 7 5 8 9 11 10 Bifacial Modules (With Frame) 2 3 4 3 5 Bifacial Modules (Frameless) 1 Frame 2 Front Glass 3 EVA/POE 4 Solar Cell 5 Back Glass 6 Sealent 7 Junction Box 8 Name Plate 9 Mounting Holes 10 Grounding Holes 11 Drain Holes 12 Bar Code Figure 2 Regular Modules Mechanical Drawing （Please refer to section 3.2 for the location of the junction box. The specific version is subject to the corresponding specification.
3.2 Junction box style and wiring method Junction Box Location Icon Recommended Wiring Method Vertical Installation: Standard Cable Length (Note：One end of the single row needs to be extended. Horizontal Installation: Standard Cable Length Vertical Installation: Standard Cable Length (Note: One end of the single row needs to be extended.) Horizontal Installation：60 type PV module cable length ≥1.2m, 72 type PV module cable length ≥1.
Junction Box Location Icon Recommended Wiring Method Vertical Installation: Standard Cable length： (Note: An extension cord is required at the rotor head of the double row assembly and at the end of the single row.) Horizontal Installation: 60 type PV module cable length ≥1.2m, 72 type PV module cable length ≥1.4m, 78 type PV module cable length ≥1.5m Vertical Installation: Method 1: Standard cable length Method 2: Single component cable length ≥1.
Junction Box Location Icon Recommended Wiring Method Vertical installation: Method 1: Standard cable length Method 2: Single component cable length ≥1.2m Horizontal Installation: Standard cable length Figure 3 Junction Box Style and Wiring Method 3.
to fall protection, ladder or stair and personal protective measures. For your safety, please do not install or handle modules in unsafe conditions including but not limited to strong wind or gust, damp or sandy roofs. 3.4 Electrical Performance Safety PV modules can produce DC current under illumination, any contact of the exposed metal of the modules connection wires may result in electrical shock or burn. Any contact of 30V or larger DC Voltage can be fatal.
• • • Open modules outer Package when installation. Do not damage the package and do not drop packaged modules on the ground. Do not exceed the indicated maximum layer limit on the packaging carton when piling modules up. • Put packaging carton in the ventilated, water-proof and dry places before unpacking modules. • • • • • • • • • Follow unpacking instructions when Opening packaging carton. Carrying modules with the junction box or wires are strictly forbidden. Do not stand or walk on modules.
4 Installation Conditions 4.1 Installation Site and Working Environment • • • The modules cannot be used in space Do not manually focus sunlight with mirrors or magnifying glass onto modules. LONGi modules shall be installed on proper buildings or other appropriate places (such as ground, garage, building outer wall, roof, PV tracking system) but shall not be installed on any vehicles. • • Do not install modules at places that are possible to be flooded.
4.2 Selection of Tilt Angles Tilt angle of modules: Included angle between module surface and horizontal surface; the module will obtain the maximum power output in direct facing of sunlight. Sun Light Module Tilt Angle Modules are preferred to be south-facing in the north hemisphere and north-facing in the south hemisphere. Please refer to standard modules installation guideline or suggestions from experienced PV module installer, for the specific installation angle.
5 Mechanical Installation 5.1 Regular Requirements • Make sure that module installation mode and bracket system can meet the expected load, which is requisite assurance that the bracket installer must provide. 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.
5.2.1 Bolts Mounting Apply bolts to fix modules on the bracket through mounting holes on the back frame. See details in Figure 4. 8 installation holes (4 inner, 4 outer) Use M8 bolts 4 400mm-span installation holes Use M6 bolts 400mm Figure 4 Bolt Installation of Monofacial Module Recommended accessories are as below : Accessories Model Material Note Bolt M8 (full thread recommended) M6 (full thread recommended) Q235B/SUS304 Accessories Washer 2*8 2*6（6.4*18-1.
laminated part bolt aluminum frame washer clamp washer spring washer nut bolt clamp laminated part washer aluminum frame washer bracket bracket nut spring washer Figure 5 Clamp Installation of Monofacial Module 5.2.3 Installation and Mechanical Load of Monofacial Module Monofacial modules can be installed with bolts into 4 outer installation holes, bolts into 4 inner installation holes, bolts into 400mm-span installation holes, and fixtures.
Load Capacities of Framed Monofacial Modules: Installation Method Installation with bolts 4 outer holes (beam perpendicular to long sides) 4 inner holes (beam perpendicular to long sides) 400mmspan holes 300 ≦ D ≦ 400 1/4L-50≤D≤1/4L+50 350≤D≤450 (beam (beam perpendicular (beam perpendicular perpendicular to long sides) to long sides) to long sides) 150≤E≤250 (beam perpendicular to short sides) LR6-60-***M ±2400 +5400，-2400 / +5400，-2400 / / ±2400 LR6-60HV-***M ±2400 +5400，-2400 / +5400，-24
Load Capacities of Frameless Monofacial Double-Glass Modules: Installation Method Module Type 60-type 72-type 300≤S≤400 400≤S≤500 LR6-60PD-***M ﹢5400，-2400 / LR6-60DG-***M ﹢5400，-2400 / LR6-60HPD-***M ﹢5400，-2400 / LR6-72PD-***M / ±2400 LR6-72DG-***M / ±2400 LR6-72HPD-***M / ±2400 5.3 Bifacial module Mechanical Installation Modules and mounting system can be connected by bolts, clamps or embedded systems. Installation shall follow the demonstration and suggestions below.
Recommended accessories are as below : Accessories Model Material Note Bolt M8 (full thread recommended) M6 (full thread recommended) Q235B/SUS304 Accessories Washer 2*8 2*6（6.4*18-1.6 ISO 7093） Q235B/SUS304 Spring Washer 8 6 Q235B/SUS304 Nut M8 M6 Q235B/SUS304 material selection should be based on application environment.
Framed PV Module EPDM Bolt Bolt Upper side clamp Lower side clamp Upper side clamp Frameless module Lower side clamp Bracket Bracket EPDM Frameless PV Module Figure 8 Clamp Installation of Bifacial Module 5.3.3 Installation and Mechanical Load of Bifacial Module Bifacial modules can be installed with bolts into 4 outer installation holes, bolts into 4 inner installation holes, bolts into 400mm-span installation holes, and fixtures.
Installation with bolts into 4 outer holes (Beam parallel to long sides) Installation with bolts into 4 outer holes (Beam perpendicular to long sides) D Installation with bolts into 4 inner holes (Beam parallel to long sides) Installation with bolts into 400mm-span holes (distance between frame and tube C≥55mm) (beam perpendicular to long sides) (clamp length≥40mm) H parallel to long sides) (clamp length≥40mm) (clamp length =150mm） Aluminum Frame Height(H) Figure 9 Bifacial Module Installation Ann
Load Capacities of Framed Bifacial Double-Glass Modules: Installation Method Installation with bolts 4 outer 4 outer holes holes (beam (beam parallel perpendicular to long sides) to long sides) 4 inner holes (beam parallel to long sides) 400mm- 1/4L-50≤D≤1/4L+50 350≤D≤450 span (beam parallel to long (beam parallel sides) to long sides) holes 350≤D≤450 (beam perpendicular to long sides) LR6-60BP-***M（40H/30H） ±2400 / +5400，-2400 / +5400，-2400 / / LR6-60BP-***M（25H） ±2400 / ±2400 / ±2400 /
String Connection Blocking Diode Parallel Connection Over Current Protection Device Connector Figure 10 Series Connection and Parallel Connection Circuit Diagram The maximum allowed quantity of modules in string connection shall be calculated according to relative regulations. 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.
6.3 Connector Please keep connectors clean and dry. Make sure connector caps are fastened before connection. Do not connect connectors under improper conditions of damp, dirty or other exceptional situations ）. Avoid connectors from direct sun light and water immersion or falling onto ground or roof. Incorrect connection may lead to electric arc and electric shock. Please make sure that all electric connection is reliable. Make sure all connectors are fully locked.
7 Grounding In design of modules, the anodized corrosion resistant aluminum alloy frame is applied for rigidity support. For safety utilization and to protect modules from lightning and static-electricity damage, the module frame must be grounded. The grounding device must be in full contact with inner side of the aluminum alloy and penetrate surface oxide film of the frame. Do not drill additional grounding holes on module frame.
Grounding Wire Grounding clamp Frame Mounting Slot Push Fasten nuts Grounding Frame Tooth washer Fixing end of grounding clamp Fasten base bolts and keep base and frame parallel Grounding line is at bottom of line slot Cover the base and the line is clamped tight. Grounding Wire Grounding bolt Grounding wire fastening bolt Figure 11 Clamp Grounding Method Note: TYCO. 1954381-1 (Recommended) is used in figures above.
During operation of modules, there shall be no environmental factors to shade modules fully or partially. These environment factors including other modules, module mounting system, birds dwelling, dust, soil or plants. These will significantly reduce output power. LONGi suggests that the module surface should not be shadowed in any case. Frequency of cleaning depends on dirt accumulation speed. In normal situations, rainwater will clean the module surface and reduce the cleaning frequency.
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