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Summary of Contents for ET Solar ET-P660250AC
- Page 1 AC Module Installation Guide Content for ET-P660250AC...
- Page 2 May 9, 2012 © 2011- 2012 ET Solar Group All Rights Reserved. No part of this publication may be reused in any manner nor in any form or format without prior written permission from ET Solar Group. ET Solar Group...
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Page 3: Table Of Contents
www.etsolar.com Content Read this First! ......................2 IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS ..2 FCC Compliance ..............4 Introduction ........................6 Components of an AC Module ........... 6 Grounding in the AC Cables ............. 7 Three-Phase Installation ............ -
Page 4: Read This First
www.etsolar.com Read this First! This document contains important information and instructions to safely install an array of alternating current photo-voltaic (AC) solar modules. Failure to follow these instructions can result in equipment damage or failure, or personal injury, and might void the system warranty. The following symbols are used throughout this document to alert you to important safety information that you will need during the installation: This symbol indicates that failure to follow instructions may result in serious hardware failure. - Page 5 www.etsolar.com power. Proper safety procedures must be followed when installing or accessing the dedicated branch circuit wiring, which includes unplugging the AC Modules from the dedicated branch circuit. • The AC module interconnecting cable system includes an internal equipment grounding conductor (EGC) connected to each module through pluggable connectors with a longer ground pin.
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Page 6: Fcc Compliance
www.etsolar.c • • For a 24 40 V split pha ase system, n no more than n 16 AC mod dules can be connected to single ded dicated branc ch circuit. Fo r a 208 V sys stem, no mor re than 14 AC C modules ca an be... - Page 7 www.etsolar.com Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
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Page 8: Introduction
www.etsolar.c troducti solar modul e you are ab bout to instal l is equipped d with a sola r microinvert ter that conv verts direct curren nt (DC) powe er generated by a photov voltaic (PV) m module into t the alternatin curr ent (AC) pow... -
Page 9: Grounding In The Ac Cables
www.etsolar.com Grounding in the AC Cables The AC cable attached to the microinverter and all accessory cables are fully insulated and contain an equipment grounding conductor (EGC). The full ground path from the transition cable to the module frame follows: •... -
Page 10: Three-Phase Installation
www.etsolar.c A be est practice f for all solar m module instal llers, especia ally those in a areas with fr requent light ning, is to o secure the module supp port rails and d hardware u using ground ing hardware e that has be cert ified to meet... -
Page 11: Module Layout Diagram
www.etsolar.com • 16 amps /1.14 nominal current = 14 modules per branch circuit • 1.14 x 14 modules= 15.96 amps ≤ 16 amps Module Layout Diagram A module layout diagram is a paper model describing the configuration of the array and the placement of each module in the array. - Page 12 w w ww.etsolar.c c om Table 1: Mod dule Layout D Diagram...
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Page 13: Connecting Latching Cables
www.etsolar.c onnecting g Latchin ng Cable . Align and insert the fe emale conne ctor into the latch male c connector. Each conn nector has a lignment gro oves and ridg ges that ensu ure the conne ectors canno ot be plugged t together inco orrectly. -
Page 14: Disconnecting Latching Cables
www.etsolar.c sconnect ting Latc ching Ca ables the provided d disconnect tool to safel ly release the e latching co onnectors. . Insert the e ends of the tool into the e latch recess ses as shown in the image es below. -
Page 15: Module Preparation
www.etsolar.com Module Preparation The preparation steps described in this section apply to a large majority of the modules you will install. Occasionally, however, situations will dictate that the cables be routed differently. Or, your individual experiences will determine steps or cable management techniques that work better for you or, more importantly, for your inspectors. -
Page 16: Preparing The Modules
www.etsolar.c cable to c connect the m module into a a junction or transition bo ox and wire a according to local and NEC o or CEC stand dards. preparation and installat tion instructio ons included in this sectio on are genera al instruction ns for insta... -
Page 17: Preparing The Last Module In The String
www.etsolar.c eparing t the Last Module in the St tring last module in the string g will require a slightly dif fferent prepa aration. last module will have an n unused AC connector. O One end or th he other will not be plugg into a neighborin... -
Page 18: Module Installation
www.etsolar.com Module Installation This section describes how to lay down and interconnect AC modules on a previously installed mounting system. No attempt is made to describe how to install the mounting system on the roof or how to use module clamps. Before installing the mounting system, ensure that mounting rails will be positioned below the microinverter once the module is installed. - Page 19 www.etsolar.c . Connect t the transition n cable to the e junction or r transition bo ox according g to NEC/CEC C and local stan dards. . Install the e first module e, nearest to o the transitio on box, acco ording to rack king system instructio...
- Page 20 www.etsolar.com 4. Install the second module. 5. Reach under the top edge of the first module and plug in the AC cable from new module. Close the latch. NOTE: For end- or edge-mount racking systems, it might be necessary to lift the top of the module slightly above the frame to reach the plug.
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Page 21: Examples
www.etsolar.c xamples diagrams in this append dix provide ex xamples of a array configu rations you m might encoun nter the types of f cables nece essary for eac ch configura tion. The gra aphics in this s appendix vi front of the module as yo ou would see... -
Page 22: Junction Box - Top Left
w w ww.etsolar.c c om Jun nction B Box - Top p Left... -
Page 23: Two Strings - Two Rows Each
w w ww.etsolar.c c om Tw wo String gs – Two rows ea... -
Page 24: Two Strings - Single Rows
w www.etsolar.c c om Tw wo String gs – Sing gle Rows... -
Page 25: Landscape - Two Strings
w w ww.etsolar.c com Lan ndscape e – Two S Strings... -
Page 26: Three-Line Diagram
www.etsolar.c hree-line e Diagra This s appendix in ncludes the fo ollowing thre ee-line diagra ams for insta alling AC mod dules. • • Single-ph ase 240V for r residential installations • • Three-pha ase 208V for r light comme ercial installa ations ngle-Pha... -
Page 27: Three Phase 208 V Diagram
www.etsolar.c AC Mo odule Intercon nnecting Cable es: Exterior-ra ated AC cable with equipme ent grounding conductor (EGC) ) integrated in nto the AC mod dule. Cables a are rated for d isconnect und er load and ca an be used as an NEC disconne ect device. - Page 28 www.etsolar.c Exter ior-rated elect trical work box x with distribu ution block or t terminal strip minimally rate ed for 208 V VAC 20A (supp plied by install ation contract tor). Groun nding lugs and d external gro und wires: The A AC cable provi des equipmen...
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Page 29: Ac Wiring Accessories
www.etsolar.c C Wiring g Acces ssories following AC C wiring acce essories are a available to a assist in any array config uration you will enco ounter. Part t Name Model Numbe Descript tion Stan dard T-AC-CCS • ttaches to the e edge of the Cable e Clip... - Page 30 www.etsolar.c Part t Name Model Numbe Descript tion Tran nsition T-TCF-5 • emale cable co onnector on o Cable nd and 100 mm m of stripped wires T-TCF-10 n the other. • 0A, exterior-ra ated 4-wire (L1 1, L2, , and Ground ) cable.
- Page 31 www.etsolar.c Part t Name Model Numbe Descript tion Exte nsion T-ECMF-5 • emale cable co onnector on o Cable nd and latch m male cable T-ECMF-10 onnector on th he other. • 0A, exterior-ra ated 4-wire (L1 1, L2, , and Ground ) cable.
- Page 32 www.etsolar.c Part t Name Model Numbe Descript tion T ACK-01 Use this k kit with high-e efficiency solar modules. Conv version • 9" conversion cable with fem male able receptacle e on one end atch male cabl e connector o n the ther end.
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Page 33: Technical Specifications
www.etsolar.com Technical Specifications Parameter 208V 240V Peak Power (Pmax) 250W Module Efficiency 15.37% Maximum Power Voltage (Vmp) 30.02V Maximum Power Current (Imp) 8.33A Open Circuit Voltage (Voc) 37.58V Short Circuit Current (Isc) 8.98A Power Tolerance ±3% Maximum System Voltage DC1000V Normal Operating Cell Temperature 45.3±2℃... - Page 34 www.etsolar.com Parameter 208V 240V Maximum units per 2-pole 20 amp dedicated branch circuit Maximum output fault current (ac) and duration 11.9 Apk, 0.31 Arms, total duration 1.2 ms Maximum output overcurrent protection 20 A 20 A Dimension 1640x992x57.5mm 64.57x39.06x2.26 inch Weight 21.59kg 47.59 lbs...
- Page 35 www.etsolar.c com ility Inter raction a - N on-adjustable m maximum clearin ng times b - N ominal voltage equals 120V ph hase to neutral c - Tr rip limit accurac cy: Voltage - ±2 2.5% based on 1 120V nominal, f frequency- ±0.1 1 Hz...
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