INSTALLATION MANUAL
Contents
1. Parallel for more current Module Wiring Each module has two 12 AWG standard 90 C sunlight resistant output cables each terminated with plug amp play connectors The cable is suitable for applications where wiring is exposed to the sunlight directly We recommend that all wiring and electrical connections comply with the National Electrical Code NEC For field connections use the solar cable with appropriate cross section according to TUV 2 PfG 1169 or use the minimum 12 AWG copper wires insulated for a minimum of 90 C and sunlight resistant as well According to IEC 60189 the insulation material used for internal wiring should have a temperature rating of minimum 90 C Wire Type PV module interconnections should be 90 C wet rated conductors An allowable wire type is using USE 2 single conductor cable and PV wire for exposed applications Commissioning amp Maintenance All work in commissioning and maintenance of a system must be performed by a qualified PV technician Bypass Diode Modules have bypass diodes integrated in the junction box and are wired in parallel with series string In the unlikely event of diode failure it is recommended to contact with NSP or local agent for checking replacing bypass diodes Be cautious of electricity shocks while commissioning and maintaining the solar power system Testing Test all electrical and electronic components of the system before commissioning Maintenance Clean the2. bonding means depends upon screw threads two or more screws or two full threads of a single screw must engage the metal The array frame shall be grounded in accordance with NEC requirements for grounding solar electrical system The module frame must be properly electrically grounded The grounding wire must be properly fastened to the module frame to assure good electrical contacts Each long side frame has 3 grounding holes with 4 mm diameter and marked with a symbol G or adjacent to their location for ground contact In addition there is a grounding hole at each short side frame in order to increase operation friendly The location of grounding holes are shown on Fig 3 1 NS PTO FoR IRAE NEO SOLAR POWER 8 x Grounding Hole Dimension of 4 mm Fig 3 1 Grounding wires must be connected to the module frame at one of these locations Great care should be exercised to ensure that corrosion caused by the grounding means is avoided Corrosion can increase the resistance of the grounding connection on the module or can even cause the grounding connection to fail entirely Corrosion can be caused by the effects of weather humidity dirt and so on Corrosion can also be caused when two dissimilar metals contact each other galvanic action All grounding hardware nuts bolts washers screws etc mu
3. module glass when it s dirty use water and a soft sponge or cloth for cleaning A mild non abrasive cleaning agent can be used to remove sticky dirt Check the electrical and mechanical connections regulatory to verify they are clean secure and undamaged nS PT O FoR IRAE NEO SOLAR POWER Disclaimer of Liability The use of this manual the installation conditions or methods operation use and maintenance of PV modules are beyond NSP s control NSP does not accept responsibility and expressly disclaims liability for loss damage or expense arising out of or in any way connected with such installation operation use or maintenance Noresponsibility is assumed by NSP for any infringement of patents or other rights of third parties which may result from use of the PV modules No license is granted by implication or under any patent or patent rights This manual information is based on NSP s knowledge and experience and is believed to be reliable Such information including product specification without limitations and suggestions do not constitute a warranty expresses or implied NSP reserves the right to change the manual the PV product the specification or product information sheet without prior notice 13 a g Ver 0 1
4. 2 AWG copper conductor e g ILSCO GBL 4DBT Burndy CL50 1TN Length of bolts should not be more than 20mm in order to avoid contacting the back sheet of the module The star washers must be used to make the electrical connection between grounding hardware and module frame by scraping off the anodized film of Al frame To the grounding hole secure the lug with stainless steel hardware consisting of bolt flat washer star washer and nut as shown in Fig 3 3 Laminate Nut Stainless steel Frame aig Longer side Flat washer Stainless steel Star washer Stainless steel So o Nut Stainless steel Ground hole diameter 4mm f Cupwasher Stainless steel go Star washer Stainless steel Frame a Ground wire 12AWG Longer side a pe Wound around the bolt Flat washer Stainless steel Spring washer Stainless steel Length 25mm L 16mm ee St ma Stainless steel Fig 3 2 Flat washer Stainless steel Wire Lug ae Bolt M4 Stainless steel Wire insert gt Set screw Fig 3 3 Ver 0 1 A SCRE IRE EZ NEO SOLAR POWER Series and Parallel Wiring Modules can be wired in series to increase voltage Connect wires from the positive terminal of one module to the negative terminal of the next module Illustration A as below shows 4 modules connected in series lf modules are connected in series the total voltage is equal to the sum of the individual
5. a AFORE IRAE NEO SOLAR POWER This manual is for NSP photovoltaic modules listed above www nsp com 1 Ver 0 1 qQs A FoR IRA NEO SOLAR POWER Content General information Safety precaution for the installing solar PV system Fire safety Mechanical installation om A WwW W Electrical installation Commission amp Maintenance 12 Disclaimer of Liability 13 2 a o a Ver 0 1 nS A SCRE IRE EZ NEO SOLAR POWER Please read this manual carefully before installing the modules Non compliance with these instructions may void the modules warranty General Information This manual contains information regarding the installation and safe handling of NSP photovoltaic PV modules All instructions should be read and understood before attempting to install If there are any questions please contact your dealer or NSP for further information The installer should conform to all safety precautions in the manual when installing modules Before installing a PV system the installer should become familiar with mechanical and electrical requirement for the PV system All installations must be performed in compliance with all applicable regional and local codes or other national and international electrical standards Keep this manual in a safe place for future reference Safety Precaution for Installing Solar PV System NSP modules are qualified for Application Class A Hazardous voltage greater than 50 V DC or hazardo
6. be affected by the roof construction and installations Improper installation may cause hazards in the event of fire Consult with local authority for guidelines and requirements for building or structural fire safety For roof installation PV modules should be mounted over a fire resistant roof covering which is rated for the application Since sparks may be produced do not install modules near equipment or locations where flammable gases can be generated or collected In case of fire NSP modules on the roof are likely to produce dangerous DC voltage and may have potential hazard even in the case of e Low light intensity e Modules being disconnected from the inverter e Modules being partly or entirely destroyed When fire has been extinguished or for the duration of fire stays away from all elements of the PV system Have your installer perform the necessary steps to bring the PV system back into a safe condition 4 Ver 0 1 A A FoR IRAE NEO SOLAR POWER Mechanical Installation The design and installation of photovoltaic systems shall be in accordance with the National Electrical Code NEC and the Canadian Electrical Code CEC To install the modules in proper direction such as facing south in northern latitudes and north in southern latitudes for best power output Please note that any shadows cast by the modules do not fall on other modules behind them This can have adverse effects on overall system per
7. formance or may result in permanent damage to modules Donot modify the PV module frames mechanically or chemically It will void the warranty Clearance between the module frame and mounting surface may be required to allow the cool ambient air circulating behind the module It is necessary for optimum module performance All fasteners nuts bolts washers screws etc must be stainless steel made unless otherwise specified it should use corrosion proof fixing material The module mounting structure must be made of durable corrosion resistant and UV resistant material There are two approved methods to mount NSP modules to the supporting structure For all mounting methods a minimum gap between the modules of 5 mm is required to allow for thermal expansion Method 1 Attachment Using Screw Each long side frame has 4 mounting slots with dimension of 9 x 14 mm used to secure the module to supporting structure as shown in Fig 1 1 For normal installation modules must be securely attached to the mounting structure using at least symmetrical mounting holes as shown in Figure 1 2 for normal installation If additional wind or snow loads are anticipated for this installation lt 5400 Pa additional mounting holes are also used as shown in Fig 1 3 The module frame must be attached to a supporting structure using M8 stainless steel hardware together with spring washers and flat washers all fitting components must be corr
8. module voltage The maximum open circuit voltage of the system must not be greater than the specified maximum system voltage of the module Caution Do not connect modules with wire terminations in Series to increase voltage Toconnect modules in parallel to increase current Connect wires from the positive terminal of one module to the positive terminal on the next module Illustration B as below shows 4 modules connected in parallel lf modules are connected in parallel the total current is equal to the sum of individual module current Connecting modules in parallel the wiring and connectors can become overheated at high current Use system wiring with suitable cross section and connectors that are approved for use at the maximum short circuit current of the module The recommended cable is PV wire with a cross section of at least 4 mm Maximum number of series connected modules lt Maximum system voltage Voc of the module at STC lf fuse is used number of parallel connected modules lt Maximum fuse rating Isc of the module at STC Mi Note W It is recommended that paralleling modules be performed using an external junction box However a small number of modules may be paralleled using the junction box on the back of the modules Contact your local seller for more information 11 Ver 0 1 NS PT O FoR IRAE NEO SOLAR POWER w URE Illustration A Series for more voltage Illustration B
9. osion proof material as shown in Fig 1 4 The applied torque is about 8 N m Here the standoff method or the rack method is recommended The recommended stand off height is 140 mm as shown in Fig 1 5 5 Ver 0 1 MSS a SCRE IRE EZ NEO SOLAR POWER J Ut O Module Back Side 8 x Mounting Slot Module Back Side Dimension of 9 x 14 mm Normal Installation Heavy Snow or Wind Load lt 2400 Pa lt 5400 Pa Fig 1 1 Fig 1 2 Fig 1 3 Laminate Bolt M8 Stainless steel Frame men Longer side Spring washer Stainless steel Supporting Structure 140 mm Flat washer Stainless steel Thickness 3mm ba Supporting structure N Flat washer Stainless steel Fig 1 5 Ig L ie AA washer Stainless steel ami ng Nut Stainless steel Fig 1 4 Method 2 Attachment Using Clamp The modules may be mounted using clamps Clamp A and Clamp B designed for solar modules as shown in Fig 2 1 Modules must be mounted at 4 symmetrical quarter points by the means showed in Fig 2 2 amp Fig 2 3 6 Ver 0 1 5 gt A TCR IRAT HE NEO SOLAR POWER The clamp position could be in a range as shown in Fig 2 4 The clamps must be attached to a supporting structure using M8 stainless steel hardware all fitting components must be corrosion proof material The applied torque is about 8 N m The modules are supported parallel
10. ove any part of module Donot remove the attached nameplate or components Donot stand or walk on modules e It is recommended to reserve a service walkway when designing the solar PV system 3 Ver 0 1 NS A SCRE IRE EZ NEO SOLAR POWER Donot place heavy objects on modules Do not drop sharp objects on modules Do not lift or transport modules by grasping the junction box or electrical leads Do not drop the module down hard on any surface Do not perform any work if the cables connectors or junction box are wet due to the risk of electrical shock Donot work in rain snow or windy conditions Under normal conditions a photovoltaic module is likely to experience conditions that produce more current and or voltage than reported at standard test conditions Accordingly the values of Isc and Voc marked on this module should be multiplied by a factor of 1 25 when determining component voltage ratings conductor capacities fuse sizes and size of controls connected to the PV output Refer to Section 690 8 of the National Electrical Code of an additional multiplying factor of 125 percent 80 percent de rating which may be applicable Fire Safety NSP modules are rated as Fire Class C according to UL 790 Standard To use components such as earth ground fault circuit breakers fuses and circuit breakers as required by local authority in the PV system for fire prevention The fire safety of building may
11. st be stainless steel unless otherwise specified it should use corrosion proof fixing material as shown in Fig 3 2 The grounding wire should not be smaller than 12 AWG The grounding wire should be 2 meters in length multi conductor and rated of 105 C and 600V Recommended torque value is 2 3 N m 20 4 Ib in There are two approved methods to ground NSP modules Method 1 Grounding Using Bolt and Nut To the grounding hole secure the grounding wire with stainless steel hardware consisting of bolt spring washer flat washer cup washer star washer and nut as shown in Fig 3 2 Length of bolts should not be more than 25 mm in order to avoid contacting the back sheet of module The use of cup washer also called terminal cup washers is to prevent the grounding wire slipping out from under the screw head and or the flat washer 9 oe E ae a Ver 0 1 A TCR IRATE NEO SOLAR POWER To make sure the cup washer is placed between the wire and module frame Choose an adequate size for the cup washer and flat washer so the wire is fully clamped between them The star washers must be used to make the electrical connection between grounding hardware and module frame by scraping off the anodized film of Al frame Method 2 Grounding Using Grounding Lug To select a grounding lug listed for direct burial and outdoor use tin plated solid copper lay in lug with a stainless steel set screw capable of accepting a 4 1
12. to surface of the building wall or roof Sufficient clearance recommended is 140 mm between the module frame and mounting surface of the wall or roof is required to prevent wiring damage and allow cool air to circulate behind the module Solar module Mounting Structure Rail Roof Metal clamp A 2 places Metal clamp B 2 places Thickness gt 3mm Fig 2 1 Fig 2 2 Metal clamp B Ss Metal clamp A Bolt M8 Module Bolt M8 Nut M8 Nut M8 Mounting Structure Rail es Between modules End of module Fig 2 3 7 Ver 0 1 a AFORE IRAE NEO SOLAR POWER D max D min o gt odes Mourne an D6P_A1A D 6P_B1A D6M_B1A D6P_A2A D6P_B2A4 D6M_B2A 440 1040 300 D6P_A3A D6P_B3A DeM_B34 640 1240 300 D6P_A5A D6P_B5A4 D6M_B54 540 1140 300 Unit mm ko E EE J mounting area mounting area Fig 2 4 Electrical Installation Grounding All module frames and mounting racks must be properly electrically grounded in accordance with respective national electrical code and local authority A bolt screw or other parts used for bonding purposes within a module or panel shall not be intended for securing the complete device to the supporting surface or frame Electrically ground the frame of the module or array to avoid the hazards of electric shock and fire Bonding shall be by a positive means such as clamping riveting bolted or screwed connectors welding soldering or brazing If the
13. us power applications greater than 240 W where general contact access is anticipated Modules qualified for safety under IEC 61730 1 IEC 61730 2 and within this application class are considered to meet the requirements for Safety Class Il Installing PV systems should be performed only by qualified or licensed experts Ensure that the NSP modules are fastened to proper mounting systems designed for appropriate mechanical loads resulting from wind and snow and the proper weight of the modules Itis suggested that completely cover the module with an opaque material during installation to keep electricity from being generated Bevery careful when disconnecting wires connected to PV modules that are exposed to sunlight an electric arc may result Such arcs may cause burns may start fires and may create problems Artificially concentrated sunlight shall not be directed on the module or panel Use only insulated tools that are approved for working on electrical installations Routine maintenance of module shall not involve breaking or disturbing the bonding path All of installation and handling activities must be carried out with due care all collisions must be avoided Lift pallets by a fork lifter by a minimum of 70 of pallet length when loading and unloading from the length side of a pallet and 100 of pallet width when loading and unloading from the width side of a pallet Do not attempt to disassemble the module or rem
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