Installation manual
Contents
1. MANUAL 2 CONTENTS FG 16 Introduction Electrical Installation Mechanical Installation Operating limitations Maintenance Legal Information REC Peak Energy Series Installation Manual Revision G 2 July 2011 INTRODUCTION Thank you for choosing REC photovoltaic modules The REC Peak Energy series modules are ideal for solar systems designed to deliver long lasting and reliable power output These modules have been created through smart design and manufactured to the highest quality and environmental standards With proper installation and maintenance REC modules will provide you with clean renewable energy for several decades Please read this manual carefully It contains critical information on safety as well as detailed instructions for installing operating and maintaining this module Review the instructions and safety notes carefully before beginning any work on the system Failure to do 50 can lead to personal injury or damage to property 4 ELECTRICAL INSTALLATION Caution Only qualified personnel should perform work on PV systems such as installation A commissioning maintenance and repairs Be sure to follow the safety instructions for all system components It is also important to observe relevant local codes and regulations for health and safety and accident prevention A ELECTRICAL REQUIREMENTS Application Class Modules are rated for use in application class A general access hazar2. Erik L kke w Sr Vice President Operations REC Peak Energy Series Installation Manual Revision G 2 July 2011 MODULE SPECIFICATIONS 3902201 5 991 2 5 ea 067 I o N 006 S ZF S99T EY SE 0 S9 S9 0 800 sajoy Bununoy i Sajoy Bununoy 3 026 0 08 0 79 0 02 I 9091 4 measurements in mm measurements in inches MECHANICAL DATA Dimensions 1665x991x38mm 65 55x39 02x15 in ve TET Fe 070 GENERAL DATA Cell Type 6 14 x 6 14 in multi crystalline cells 60 in series Glass High transparency solar glass with antireflection surface treatment by Sunarc Technology REC Renewable Energy Corporation ASA Kj rboveien 29 PO Box 594 NO 1302 Sandvika Norway Tel 4767574450 Fax 476757 44 99 www recgroup com
3. 500 At low irradiation of 200W m AM 1 5 and cell temperature 25 C at least 97 of the STC module efficiency will be achieved MAXIMUM RATINGS IEC 61730 u IEC 61215 Operational Temperature vere System Voltage EEE EEE EE Maximum Load Ter Speed ENE ie Rating EEE Max Reverse Current Maximum ratings IEC 40 80 1000V 551kg m 5400 Pa 197 km h safety factor 3 15A DC 15A DC MAXIMUM RATINGS UL 1703 Operational Temperature Maximum System Voltage Besgnl Fr es Rating EEE EE Max Reverse Current Maximum ratings UL REC Peak Energy Series Installation Manual Revision G 2 July 2011 40 80 C 600V KE 2 lbs ft 3600 Pa 15A DC 15A DC Values at NOCT Nominal Operating Cell Temperature Underwriters Laboratories Information U S and Canada only PEAK POWER 215WP 220WP 225WP 230WP 235WP MPP Values at NOCT Irradiance level 800W mz2 spectrum AM 1 5 wind velocity 1m s Tamb 20 C NOCT Nominal Operating Cell Temperature 47 9 2 C 235W Rated Module 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 l4 and Voc marked on this module should be multiplied by a factor of 1 25 when determining component voltage ratings conductor ampacities fuse sizes and size of controls connected to the PV output Refer to se
4. ction 690 8 of the US National Electric Code NEC for an additional multiplying factor of 125 80 derating which may be applicable The multiplying factor for the open circuit voltage of the module Voc is according to Table 690 7 of the NEC code C ELECTRICAL SAFETY Allrelevant electrical installation codes and regulations should be referred to and observed A copy of these instructions should be included in the system documentation Preventing the system from generating current Solar modules automatically generate current electricity when exposed to light To prevent this shield the system with a non transparent cover during installation maintenance or repair work Unique Hazards of DC Electricity Solar modules generate direct current DC electricity Once the current is flowing breaking or opening a connection e g disconnecting a DC cable from the inverter can cause a DC electrical arc Unlike arcs occurring in conventional low voltage AC wiring DC arcs are not self extinguishing They are a potentially lethal burn and fire hazard capable of creating high temperatures that can destroy contacts and connectors Always e Follow the module and inverter manufacturer s installation handling and operating instructions e Remove open the inverter AC fuse circuit breaker before you disconnect the inverter from the public grid Switch off or disconnect the inverter and wait for the time specified by the manufacturer before wo
5. dous voltage hazardous power applications according to IEC 61730 System Requirements REC photovoltaic PV modules should only be used in systems where they meet the specific technical requirements of the system as a whole Ensure that other system components will not cause mechanical or electrical damage to the modules Connection Ifthe modules are to be connected together in series they should have the same amperage e If the modules are to be connected in parallel they should have the same voltage String configuration If you use string configuration plan and execute it according to the inverter manufacturer s instructions The number of modules connected to an inverter should be within the inverter voltage limits and operating range The design of the string configuration s should comply with the inverter s manufacturer s guidelines and must create a voltage less than the permitted total system voltage Wiring layout and configuration In order to minimize voltage surges which could be induced by indirect lightning strikes DC cables of the same string should be bundled together so that loops are kept as small as possible String configurations should be checked before system commissioning If the open circuit voltage Voc and the short circuit current Isc deviates from the specifications this could indicate a configuration fault Correct DC polarity should be observed at all times Connection of plug connectors All connect
6. e safety guidelines when installing REC PE series modules RECPE Series modules have a Class C Fire Rating e Check with local authorities for guidelines and requirements concerning fire safety for any building or structure that the modules will be mounted on or attached to e The system design should ensure that fire fighting personnel can access the system in the event of a building fire Check with local authorities for any applicable regulations concerning setbacks or other placement restrictions that may apply for roof mounted PV arrays e We recommend that you use DC Ground Fault Interrupters This may also be required by local and national codes Allelectrical appliances are subject to fire risk The module should therefore be mounted over a fire retardant roof covering rated for the application and the minimum distance to the roof top should be 4 inches 10 cm B ORIENTATION To maximize system output install the modules at optimum orientation and tilt angles The specifics of this depend on the location and must be calculated by a qualified system designer The ideal angle for mounting the module should result in the sun s rays falling perpendicular i e at a 90 angle to the module surface In each series string all the modules should have the same orientation and tilt This will ensure that they do not under perform as a result of mismatching of each module s outputs The modules should not be exposed to artificially co
7. he star washer between the frame and the nut use Size 10 stainless steel screw washer and locking nut to mount the lug to the module frame and tighten with 5 ft lbs 6 8 Nm torque e The grounding wire size should be between 4 AWG and 14 AWG 21 2mm 2 1 mm Canada The installation shall be in accordance with CSA C22 1 safety standard for electrical installations Canadian electrical code part 1 The torque for wire fastening should be in accordance with the following table GROUNDING DIMENSIONS AND TORQUE Wire size AWG Cross section mm Type Torque Torque Torque fin lbs ft lbs Nm e UNDER oe ver EE TNT na 10 14 53 21 Stranded Solid 25 2 1 2 8 GROUNDING ES Laminate Star Washer EC Peak Energy Series Installation Manual fevision G 2 July 2011 B RATINGS Values at Standard Test Conditions See Electrical data table for STC Characteristics Irradiance level 1000 W m Cell temperature 25 C spectrum AM 1 5 Values for I Voc and P ELECTRICAL DATA STC Peak Power Watts Pax Wp 225 Power Output Tolerance Puy W 0 0 5 i Maximum Power Voltage V ver 29 1 ee et T A pe Open Circuit Voltage Ve V 368 Module Efficiency OG 136 mep at STC are within tolerance of 10 REC225PE REC230PE REC235PE REC240PE REC245PE REC250PE Values at Standard Test Conditions STC C Airt Mass AM 1 5 Irradiance 1000 JOW m2 cell temperature 25
8. ions should be secure tight and electrically and mechanically sound Accessories and materials UV resistant cables and connectors approved for outside use should be used Ensure that they are electrically and mechanically sound Conductor gauge should be chosen so as to ensure that DC power losses voltage drop are kept to aminimum less than 1 is preferred National Electrical Code NEC and regulations need to be followed when selecting cables For field connections use minimum 4 mm or 12 AWG copper wires insulated for a minimum of 90 C Protecting the cables Cables should be secured to the array mounting system using UV resistant cable ties or other sunlight REC Peak Energy Series Installation Manual Revision G 2 July 2011 resistant device Loose and unsecured cables should be protected from mechanical damage Avoid as far as possible exposing the cables to direct sunlight and permanent tension Grounding USA and Canada only You must ground all PV modules using an electrical connection from the module frames to the ground This must be done according to the following standards UseaUL listed grounding lug such as the tin plated versions of ILSCO GBL 4DB or CMC CL 50 DB lay in lugs or their equivalent Attach the grounds to the existing grounding holes in the module frames To ensure a conductive connection use a combination of screw star washer and lock nut to mount the grounding lug onto the frame Place t
9. lkali window cleaner or cleaned with denatured spirits and finished cleaning with rinse with water Cleaning liquid agents which are acidic solutions low pH value lt 5 can therefore also be used in diluted form to remove as example calcium except hydrofluoric acid Always finish cleaning with rinse with plenty of water For removal of moss or fungi and bacteria on the glass surface the use of cleaning agent with active component benzalkoniumchlorid could be used Rodalone sold through the company Brenntag is recommended Please do not use any of the following Alcalic pH value gt 9 cleaning liquid agents Hydrofluoric acid HF Harsh cleaning materials such as scouring powder steel wool and cloth with course metal treads in the weave scrapers or other sharp instruments The system should be inspected regularly to ensure that e Fasteners are secure tight and free of corrosion Electrical connections are secure tight clean and free of corrosion The mechanical integrity of the cables is intact e Bonding points to Earth Ground are tight secure and free of corrosion which could break the continuity between the modules and ground REC Peak Energy Series Installation Manual Revision G 2 July 2011 LEGAL INFORMATION A LIABILITY DISCLAIMER REC Solar AS accepts no liability for the usability and functionality of its solar modules if the instructions inthis guide are not followed Since compliance with thi
10. mm and a minimum thickness of load carrying walls of 0 16 inches 4 mm Use size 5 16 stainless steel bolted connections with 5 16 split washer The applied torque to fasten the clamps must be within the range of 9 ft lbs 12 Nm Approved types of clamps are the ones manufactured by SolaRak Module End Clamp part number 232 02018 or 232 02019 and Module Mid Clamp part number 232 02015 or 232 02016 Follow the mounting equipment manufacturer s instructions and recommendations at all times The clamps should be fastened to C or H channel rails RAIL SPECIFICATIONS Walls for mechanical connectors I Walls exposed to buckline load Thickness of walls for mechanical connections min 0 156 inch 4 0mm Thickness of walls exposed to buckling load min 0 08 inch 2 0mm Moment of Inertia for profile area about X X min 0 4 inch 19 2cm REC Peak Energy Series Installation Manual Revision G 2 July 2011 There are three ways of mounting the modules to the mounting structure Option 1 Long side mounting using clamps The clamps should be fastened between 8 2 and 16 4 inches 208 416 mm from the corner of the mod ule See drawing below Long side mounting The distance between the end clamp and the end of the rail should be minimum 1 in 25 mm LONG SIDE MOUNTING Option 2 Short side mounting using clamps The modules can be fixed on the short side given the following constraints Modules must be fixed in a way
11. ncentrated light Even minor or partial shading of the modules array will reduce array system output A module is considered shade free when it is both e Free from shade or shadows all year round e Exposed to several hours of direct sunlight even during shortest days of the year 10 C ENVIRONMENTAL FACTORS The modules are designed to be installed in moderate temperate climatic conditions The modules are not suitable for installation in potentially hazardous locations The modules should not be installed at the following locations Near sources of flammable gases and vapors such as gas petrol stations gas storage containers spray paint facilities Near open flames Underwater or in a fountain or other similar water feature Where they are exposed to salt Recommended distance from the sea 1600 feet 500 m Where they are exposed to sulfur such as near sulfur springs or volcanoes because of the danger of corrosion Where they can be exposed to corrosive chemicals D MODULE HANDLING Modules should be handled with care and the warnings and instructions on their packaging should be observed Follow these guidelines when unpacking transporting or storing the modules e Record the module serial numbers before installation and note the information in the system documentation e Carry the modules using both hands and avoid using the junction box as a grip Do not allow the modules to sag or bow under their own weight
12. oad of 551 kg m 5400 Pa IEC61215 Site specific loads such as wind and snow need to be taken into consideration to ensure that this weight loading is not exceeded The modules are built to withstand a downward force no greater than 551 Kg m 5400 Pa with long side mounting no greater than 245 Kg m 2400 Pa with short side mounting fig 4 Site specific loads such as wind or snow need to be taken into consideration to ensure that this limit is not exceeded NOTE In areas of snow build up modules can be subjected to forces in excess of the stated limit even when snow depth does not appear extreme thus causing damage to the framework If the installation is likely to be affected by this further suitable module support is recommended on the lower row of modules ARRAY REC Peak Energy Series Installation Manual 11 Revision G2 July 2011 Fastening the modules to the mounting structure Each module must be securely fixed to the mounting structure at a minimum of four points Clamps and rails CLAMP SPECIFICATIONS Grip length min 1 75 inch Grip length min 1 75 inch Grip depth Grip depth E Walls exposed to min 0 2 inch min 0 2 inch load min 0 156 inch Use clamps of extruded aluminum with minimum yield strength of 2089 ton ft 200 MPa and minimum tensile strength of 2610 ton ft 250 MPa i e 6005 T5 alloy with a minimum grip length of 1 75 inches 44 5 mm minimum grip depth of 0 2 inches 5
13. opriate for the local environment NOTE The warranty will be voided if additional holes are made in the frame All fixing and fastening materials should be corrosion resistant MOUNTING USING MOUNTING HOLES Preventing galvanic corrosion To avoid galvanic corrosion use of stainless steel fastening materials are the preferred choice but galvanized or hot dipped zinc plated fasteners are acceptable REC Peak Energy Series Installation Manual Revision G 2 July 2011 OPERATING LIMITATIONS REC PE Series modules are designed to be able to provide decades of durable and stable output in moderate temperate climatic conditions Operating temperatures should be between 40 and 80 C TEMPERATURE RATINGS 235 W RATED MODULE Nominal Operating Cell Temperature NOCT 47 9 C 2 0 Temperature Coefficient of PMMP 0 46 C Temperature Coefficient of Voc 0 32 C 16 MAINTENANCE REC PE Series modules have been designed for easy maintainance Normal rainfall will naturally clean the modules if the modules is installed in a position with a sufficient tilt The need for cleaning will vary with the location of the installation amount of rainfall and pollution To optimize the electrical output it is recommended to clean the modules when dirt can be seen on the glass surface If dirt remains on the module surfaces it will cause cell shading which can reduce system power output If necessary cleaning can be done as anormal glass with non a
14. rking on it its high voltage components need sufficient time to discharge Safety Requirements The voltage produced by individual modules and modules connected in series voltages are added together or in parallel currents are added together can give rise to dangerous voltage and current 8 Although the fully insulated plug contacts on the module s output cables provide touch safe protection you must observe the following points when handling the modules in order to avoid the risk of sparking fire hazard burn risk and lethal electric shocks e Exercise extreme caution when wiring the modules and look out for damaged cable ends split cable ends dirt etc Never insert metallic or otherwise conductive objects into the plugs or sockets Ensure that all electrical connections are completely dry before they are assembled Keep all materials tools and working conditions clean and dry e Always use appropriate safety equipment such as insulated tools and insulated gloves REC Peak Energy Series Installation Manual Revision G 2 July 2011 MECHANICAL INSTALLATION Caution Only qualified personnel should perform work on PV systems such as installation A commissioning maintenance and repairs Be sure to follow the safety instructions for all system components It is also important to observe relevant local codes and regulations for health and safety and accident prevention A FIRE GUIDELINES Utilize the following fir
15. s guide and the conditions and methods of installation operation use and maintenance of the modules are not checked or monitored by REC Solar AS REC Solar AS accepts no liability for damage arising from improper use or incorrect installation operation use or maintenance This does not apply to damages due to 3 module fault in cases of loss of life bodily injury or damage to health or in the event of 3 grossly negligent breach of obligations on the part of REC Solar AS and or in the event of an intentional or grossly negligent breach of obligations by a legal representative or vicarious agent 18 B DECLARATION OF CONFORMITY REC EC Declaration of Conformity We REC Modules Pte Ltd 20 Tuas South Avenue 14 Singapore 637312 Singapore hereby declare that the following product line Peak Enery PE Series including the REC215PE REC215PE BLK REC220PE REC220PE BLK REC225PE REC225PE BLK REC230PE REC230PE BLK REC23SPE and REC235PE BLK models are in conformity with the provisions of the following EC directive LDV 2006 95 EC Low Voltage Directive The following references of standards and technical specifications have been applied for in this EC EEA declaration of conformity IEC 61215 2nd edition PV Modules Design qualification and type approval IEC 61730 Photovoltaic PV module safety qualification The product was first marked with the CE mark in 2010 Oslo Jaunary 31st 2010 RMU labda u lalu ve
16. that the lower short side of frame is supported by the mounting structure to reduce risk of damages due to sliding snow load Draining holes in frame to be completely open not in any way covered of mounting structure The clamps must be mounted in a distance between 4 9 and 9 8 inches 125 250 mm from the corner as shown in the figure below The distance between the end clamp and the end of the rail should be minimum 1 in 25 mm The mechanical load must not exceed 2400 Pa at short side mounting The minimum overlap between support rail and frame must be at least 6 mm SHORT SIDE MOUNTING REC Peak Energy Series Installation Manual B Revision G2 July 2011 14 Option 3 Mounting holes When mounting using the mounting holes the module should be supported by two rails transversely at the mounting holes The module should be mounted using lock nut and washer or lock nut with flange Additional electrical bonding to Earth Ground is required for the metal support structure see earlier description of grounding A torque wrench should be used to tighten nuts and bolts to specification The applied torque required when using 1 4 bolts as shown in the drawing below Mounting using mounting holes must be within a range of 9 ft lbs 12 Nm All four existing mounting holes in the frame should be used The under construction should be of aluminium or galvanized steel to avoid galvanic corrosion The under construction should be appr
17. when being carried Do not subject the modules to loads or stresses and avoid stepping on or dropping them Keep all electrical contacts clean and dry If you need to store modules temporarily keep them in a dry properly ventilated room Do not apply any forces to the backsheet Note that if the module front glass is broken or laminate back sheet damaged it can expose personnel to hazardous voltages Therefore e Ifyou must mark modules avoid using sharp or pointed objects e Never apply paints adhesives or detergents to the back of the laminate e Donotuse any solar module that is damaged or has been tampered with e Never attempt to disassemble the modules E MOUNTING REC PE Series modules are designed strictly for capturing solar radiation and are not suitable for installation as overhead or vertical glazing The distance between the modules and the installation surface must be at least 10 cmto ensure adequate cooling The array mounting structure should be able to withstand anticipated wind and snow loads At the bottom of the module frames there are openings which allow rain water to flow away NOTE Do not cover the corner draining holes shown in the draining holes illustration REC Peak Energy Series Installation Manual Revision G 2 July 2011 DRAINING HOLES The maximum load the module should be subjected to must not exceed the module design load of 75 2 Ib ft 3600 Pa UL1703 respectively maximum module l
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