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HomeMy WebLinkAbout1740 BUENA VISTA WAY; ; CB091472; Permit09-17-2009 City of Carlsbad 1635 Faraday Av Carlsbad, CA 92008 Electrical Permit Permit No: CB091472 Building Inspection Request Line (760) 602-2725 Job Address: Permit Type: Parcel No: Reference #: PC#: Project Title: 1740 BUENA VISTA WY CBAD ELEC 1561420800 Lot#: JOLLY: ROOF MOUNT. PV SYSTEM AND UPGRADE ELECT PANEL FROM 125 TO 200 AMP Status: ISSUED Applied: 09/08/2009 Entered By: JMA Plan Approved: 09/17/2009 Issued: 09/17/2009 Inspect Area: Applicant: N B BAKER ELECTRIC INC 1298 PACIFIC OAKS PL 92029 760 745-2001 Owner: JOLLY HENRY R LIVING TRUST 09-11-02 1740 BUENA VISTA WAY CARLSBAD CA 92008 Electric Issue Fee Single Phase per AMP Three Phase per AMP Three Phase 480 Per AMP Remodel/Alteration per AMP Remodel Fee Temporary Service Fee Test Meter Fee Other Electrical Fees Additional Fees 0 0 0 75 $10.00 $0.00 $0.00 $0.00 $18.75 $0.00 $0.00 $0.00 $110.00 $0.00 TOTAL PERMIT FEES $138.75 Total Fees:$138.75 Total Payments To Date:$138.75 Balance Due:$0.00 Inspector: FINAL APPROVAL Date:Clearance: NOTICE: Please take NOTICE that approval of your project includes the "Imposition" of fees, dedications, reservations, or other exactions hereafter collectively referred to as "fees/exactions." You have 90 days from the date this permit was issued to protest imposition of these fees/exactions. If you protest them, you must follow the protest procedures set forth in Government Code Section 66020(a), and file the protest and any other required information with the City Manager for processing in accordance with Carlsbad Municipal Code Section 3.32.030. Failure to timely follow that procedure will bar any subsequent legal action to attack, review, set aside, void, or annul their imposition. You are hereby FURTHER NOTIFIED that your right to protest the specified fees/exactions DOES NOT APPLY to water and sewer connection fees and capacity changes, nor planning, zoning, grading or other similar application processing or service fees in connection with this project. NOR DOES IT APPLY to any fees/exactions of which you have previously been given a NOTICE similar to this, or as to which the statute of limitations has previously otherwise expired. Building Permit Application .W;'* 1635 Faraday Ave., Carlsbad, CA 92008 "•^ CITY OF 760-602-2717/2718/2719 {"* ADI C R A fl Fax 76°-602-8558 V-» f\ IV I— <J D/\ L/ www.carlsbadca.gov JOB ADDRESS 1740 Buena Vista Way CT/PROJECT# LOT* PHASE* # OF UNITS # BEDROOMS SUITE#/SPACE#/UNIT# # BATHROOMS TENANT DESCRIPTION OF WORK: Include Square Feet of Affected Area(s) Roof mounted PV system EXISTING USE PROPOSED USE GARAGE (SF) CONTACT NAME (If Different Font Applicant) ADDRESS CITY STATE ZIP PHONE FAX EMAIL PROPERTY OWNER NAME Hank Jolly ADDRESS 1740 Buena Vista Wav CITY STATE ZIP Carlsbad CA 92008 PHONE FAX 760-729-5518 EMAIL hjolly@sbcglobal.net ARCH/DESIGNER NAME & ADDRESS STATE LIC. # NB Baker Electric PATIOS (SF) DECKS (SF APPLICANT NAME ADDRESS Plan Check No. C&O^ l<-f72_ Est. Value Plan Ck. Deposit Date <a £>f0 ^ ^J^l/W APN BUSINESS NAME CONSTR. TYPE OCC. GROUP |*YAf ) FIREPLACE AIR CONDITIONING FIRE SPRINKLERS YES | fr Nd| | YES^NOQ YES| |Np| | NB Baker Electric 1298 Pacific Oaks Place CITY STATE ZIPEscondido CA 92029 PHONE FAX 760-745-2001 760-745-8214 EMAIL kfrost@baker-electric.com CONTRACTOR BUS. NAME _ _NB Baker Electric ADDRESS 1298 Pacific Oaks Place CITY STATE ZIPEscondido CA 92029 PHONE FAX 760-745-2001 760-745-8214 EMAIL kfrost@baker-electric.com STATE LIC.# CLASS CITY BUS. LIC.# 858088 C-10 1221102 (Sec. 7031.5 Business and Professions Code: Any City or County which requires a permit to construct, alter, improve, demolish or repair any structure, prior to its issuance, also requires theapplicant for such permit to file a signed statement that he is licensed pursuant to the provisions of the Contractor's License Law (Chapter 9, commending with Section 7000 of Division 3 of theBusiness and Professions Code) or that he is exempt therefrom, and the basis for the alleged exemption. Any violation of Section 7031.5 by any applicant for a permit subjects the applicant to acivil penalty of not more than five hundred dollars {$500}). COMPENSATION Workers' Compensation Declaration: / hereby affirm under penalty of perjury one of the following declarations: I 11 have and will maintain a certificate of consent to self-insure for workers' compensation as provided by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. I* 11 have and will maintain workers' compensation, as required by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. My workers' compensation insurance carrier and policy number are: Insurance Co PA Manufaclurore Association Insurant Company p0|jcy No. WC1M004500 Expiration Date nH'm This section need not be completed if the permit is for one hundred dollars ($100) or less. I | Certificate of Exemption: I certify that in the performance of the work for which this permit is issued, I shall not employ any person in any manner so as to become subject to the Workers' Compensation Laws of California. WARNING: Failure to secure workers' compensation coverage is unlawful, and shall subject an employer to criminal penalties and civil fines up to one hundred thousand dollars (&100,000), in addition to the cost of compensation, damages as^pjoW«UoijnSection 3706 of the Labor code, interest and attorney's fees. , _ JS$ CONTRACTOR SIGNATURE '"C'^^C-^ ^"^"^ DATE *? /,f *7 / / hereby affirm that I am exempt from Contractor's License Law for the following reason: | | I, as owner of the property or my employees with wages as their sole compensation, will do the work and the structure is not intended or offered for sate (Sec. 7044, Business and Professions Code: The Contractor's License Law does not apply to an owner of property who builds or improves thereon, and who does such work himself or through his own employees, provided that such improvements are not intended or offered for sale. If, however, the building or improvement is sold within one year of completion, the owner-builder will have the burden of proving that he did not build or improve for the purpose of sale). I | I, as owner of the property, am exclusively contracting with licensed contractors to construct the project (Sec. 7044, Business and Professions Code: The Contractor's License Law does not apply to an owner of property who builds or improves thereon, and contracts for such projects with contractorfs) licensed pursuant to the Contractor's License Law). [ | I am exempt under Section Business and Professions Code for this reason: 1.1 personal!/ plan to provide the major labor and materials for construction of the proposed property improvement. I lYes I JNo 2.1 (have / have not) signed an application for a building permit for the proposed work. 3.1 have contracted with the following person (firm) to provide the proposed construction (include name address / phone / contractors' license number): 4.1 plan to provide portions of the work, but I have hired the following person to coordinate, supervise and provide the major work (include name / address / phone / contractors' license number): 5.1 will provide some of the work, but I have contracted (hired) the following persons to provide the work indicated (include name / address / phone / type of work): ^PROPERTY OWNER SIGNATURE DATE Is the applicant or future builtfing occupant required to submit a business plan, acutely hazardous materials registration form or risk management and prevention program under Sections 25505,25533 or 25534 of the Presley-Tanner Hazardous Substance Account Act? I I Yes I / iNo Is the applicant or future building occupant required to obtain a permit from the air pollution control district or ainjuality management district? I lYes f/1 No Is the facility to be constructed within 1,000 feet of the outer boundary of a school site? I lYes l/lNo IF ANY OF THE ANSWERS ARE YES, A FINAL CERTIFICATE OF OCCUPAN EMERGENCY SERVICES AND THE AIR POLLUTION CONTROL DISTRICT. I hereby affirm that there is a construction lending agency for the performance of the work this permit is issued (Sec. 3097 () Civil Code). Lender's Name Lender's Address fm 0 >P Vt C aft *l TF ^4 C Jk T 1 "&m • • I certify that I have read the application and state that the above information is correct and that the information on the plans is accurateJ agree to com ply v^ all t^otdirances and State lavreidatingtobullding construction. I hereby authorize representative of the City of Carlsbad to enter upon the above mentioned property for inspection purposes. I ALSO AGREE TO SAVE, INDEMNIFY AND KEEP HARMLESS THE CITY OF CARLSBAD AGAINST ALL LIABILITIES, JUDGMENTS, COSTS AND EXPENSES WHICH MAY IN ANY WAY ACCRUE AGAINST SAID CITY IN CONSEQUENCE OF THE GRANTING OF THIS PERMIT. OSHA: An OSHA permit is required for excavations over 5'0' deep and demolition or construction of structures over 3 stories in height. EXPIRATION: Every permit issued by the Building Official under the provisions of this Code shall expire by limitaSonand-Becorne null and void if the building or work authorized by such permit is not commenced within •jpO days from the date of such permit or pie buildinjjor work authgdzSBby such permit is suspendedjyfeariSSned at any time after the work is commenced for a period of 180 days (Section 106.4.4 Uniform Building Code). J / ^APPLICANT'S SIGNATURE DATE City of Carlsbad Bldg Inspection Request For: 02/03/2010 Permit* CB091472 Title: JOLLY: ROOF MOUNT. PV SYSTEM Description: AND UPGRADE ELECT PANEL FROM 125 TO 200 AMP Inspector Assignment: PC 1740 BUENA VISTA WY Lot: 0 Type: ELEC Sub Type: Job Address: Suite: Location: APPLICANT N B BAKER ELECTRIC INC Owner: JOLLY HENRY R LIVING TRUST 09-11-02 Remarks: FINAL P V SYSTEM Phone: 7608026569 Inspector: |V[^ Total Time: CD Description 39 Final Electrical Act Comments Requested By: JOSH Entered By: CHRISTINE Com ments/Notices/Holds Associated PCRs/CVs Original PC# Inspection History Date Description Act Insp Comments 10/06/2009 33 Service Change/Upgrade AP PC EMR - FINAL WILL BE CALLED IN WHEN PV WORK IS DONE City of Carlsbad Bldg Inspection Request For: 10/06/2009 Permit* CB091472 Title: JOLLY: ROOF MOUNT. PV SYSTEM Description: AND UPGRADE ELECT PANEL FROM 125 TO 200 AMP Inspector Assignment: 1740 BUENA VISTA WY Lot: 0 Type: ELEC Sub Type: Job Address: Suite: Location: APPLICANT N B BAKER ELECTRIC INC Owner: JOLLY HENRY R LIVING TRUST 09-11-02 Remarks: Phone: 7608026569 Inspector: Total Time:Requested By: JOSH Entered By: CHRISTINE CD Description 33 Service Change/Upgrade Comments/Notices/Holds Associated PCRs/CVs Original PC# Inspection History Date Description Act Insp Comments PLANNING/ENGINEERING APPROVALS PERMIT NUMBER CB 09-1472 DATE 9/8/9 ADDRESS 1740 Buena Vista Way RESIDENTIAL ADDITION- MINOR (<17,000.00) RETAINING WALL VILLAGE FAIRE POOL/SPA TENANT IMPROVEMENT COMPLETE OFFICE BUILDING OTHER solar panels PLANNER Chris Sekton DATE 9/8/9 DATE H:\ADMIN\COUNTER/PLANNINC/ENCINEERING APPROVALS EsGil Corporation In (Partnership with government for QSuiftfing Safety DATE: 9/15/20O9 a 'JURIS. JURISDICTION: Carlsbad cTPDtfTREViEWER a FILE PLAN CHECK NO.: 09-1472 SET: I PROJECT ADDRESS: 1740 Buena Vista Way PROJECT NAME: Jolly 6,000 Watt Solar Photovoltaic XI The plans transmitted herewith have been corrected where necessary and substantially comply with the jurisdiction's building codes. The plans transmitted herewith will substantially comply with the jurisdiction's building codes when minor deficiencies identified below are resolved and checked by building department staff. The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck. The check list transmitted herewith is for your information. The plans are being held at Esgil Corporation until corrected plans are submitted for recheck. The applicant's copy of the check list is enclosed for the jurisdiction to forward to the applicant contact person. The applicant's copy of the check list has been sent to: XI Esgil Corporation staff did not advise the applicant that the plan check has been completed. Esgil Corporation staff did advise the applicant that the plan check has been completed. Person contacted: Telephone #: Date contacted: (by: ) Fax #: Mail Telephone Fax In Person REMARKS: By: Eric Jensen Enclosures: EsGil Corporation D GA D EJ D PC 9/9 9320 Chesapeake Drive, Suite 208 + San Diego, California 92123 + (858)560-1468 + Fax (858) 560-1576 Carlsbad 09-1472 9/15/2009 [DO NOT PAY- THIS IS NOT AN INVOICE] VALUATION AND PLAN CHECK FEE JURISDICTION: Carlsbad PLAN CHECK NO.: 09-1472 PREPARED BY: Eric Jensen DATE: 9/15/2009 BUILDING ADDRESS: 1740 Buena Vista Way BUILDING OCCUPANCY: TYPE OF CONSTRUCTION: BUILDING PORTION Air Conditioning Fire Sprinklers TOTAL VALUE Jurisdiction Code AREA ( Sq. Ft.) cb Valuation Multiplier By Ordinance Reg. Mod. VALUE ($) Plan Check Fee by Ordinance }J Type of Review: D Complete Review I Repetitive FeeRepeats D Other m Hourly EsGil Fee $107.50 $86.00 Structural Only Hr. $86.00 Based on hourly rate Comments: Sheet 1 of 1 macvalue.doc + A Division of NB Baker Electric Inc V BAKER ELECTRIC SOLAR Permit Application Residential Photovoltaic System Jolly Residence 1740 Buena Vista Way Carlsbad, CA 92008 1) Property/Homeowner A^v>2) Location Map X" xA ^\P^<A $*^J1K ^ 3) Roof Panel Location Plan ^ V 4) One Line Diagram 5) Equipment Specification Sheet - Inverter (Sunpower SPR-6000m) 6) Equipment Specification Sheet - PV Module (Sunpower SPR-230-WHT) 7) Mounting System - (Unirac) 8) Placards/Signage 9) Contractor's License www.bakerelectricsolar.com 1298 Pacific Oaks Place, Escondido, California 92029 877.5.GET.SOLAR [877.543.8765] fax 760.745.8214 ***«* BAK1R ELECTRIC SOLAR Contact Information Name:Hank Jolly Summary Sheet Address: 1740 Buena Vista Way Zip Code: 92008 County: D Phone Number: 760-729-5518 City:Carlsbad Email Address: hjol I v@sbcglobal.net City: D System Information System Size: 6.4kW Sunpower Modules: SPR-230-WHT Sunpower Inverter: SPR-6000m Quantity: 28 Quantity: 1 Roof Type: Composite Shingle Company Information NB Baker Electric, Inc. 1298 Pacific Oaks Place Escondido, CA 92029 760-745-2001 Contact: Mark Johnson License Number: C10-858088 Insurance Information General Liability Peerless Insurance Company Policy #CB08516688 Expires: 10/01/09 Workers' Comp PA Manufacturers Association Insurance Co. Policy #WC104004500 Expires: 10/01/09 "System not to be energized until approved by utility* BEST COPY 146° true ROOF MOUNTED SOLAR PANELS .,,-1 SECTION SCALE: 1/4" = 1'-0" TOP MOUNTING CLAMP SOLAR MOUNT RAIL SEAL SOLAR BASE UNIT TO ROOE PER MANUFACTURES SUGGESTION—^' rSOLAR PANEL EXISTING ROOFING MATERIAL. EXISTING ROOF DECKING MATERIAL MOUNTING DETAIL OLAR MOUNT BASE UNIT -LAG BOLT SIZED PER MANUFACTURES SUGGESTION EXISTING ROOF JOIST INVERTER SCALE: 1 1/2" = 1'-0" ALL DC SYSTEM RACEWAYS SHALL BE LABELED "CAUTION DC CIRCUIT" EVERY 5 FEET AC DISCONNECT SWITCH EXISTING METER & PANEL - REPLACE WITH 200A METER & PANEL WITH 200A/2P MAIN BREAKER ROOF MOUNTED SOLAR PANELS (TYP) LABEL FOR INVERTER FOR Array A DC OPERATING CURRENT: 22.44 DC OPERATING VOLTAGE: 287 DC MAXIMUM SYSTEM VOLTAGE: 340.9 i DC SHORT CIRCUIT CURRENT: 23.96 ADC VDC VDC ADC LABEL @ DISCONNECT SWITCH WARNING ELECTRIC SHOCK HAZARD DO NOT TOUCH TERMINALS Terminals on both the LINE and LOAD sides may be energized in the open position. LABEL @ MAIN PANEL INTERACTIVE PHOTOVOLTAIC POWER FLOWING THROUGH THIS PANEL AC OPERATING CURRENT: 31.25 Amps AC OPERATING VOLTAGE: 240 Volts NB Baker Electric, Inc. 1298 Pacific Oaks Place Escondido, CA 92029 (760) 745-2001 C10-858088 Exp. 4/30/2011 JOLLY RESIDENCE 1740 Buena Vista Way Carlsbad, CA 92008 SCALE: 1/8"= 1'0' JOB #: S1164 PHOTOVOLTAIC ROOF PLAN BAKES ELECTRIC Q n \ A P REV DATE: REV DATE: REV DATE: DATE: 9/1/2009 BY: she PHOTOVOLTAIC ARRAY ARRAY JUNCTION BOX r NB Baker Electric, Inc. 1298 Pacific Oaks Place Escondido, CA 92029 (760) 745-2001 C10-858088 Exp. 4/30/2011 -"-T^T 0 ffi ,.4 1:: i ft A INVERTER AC DISCONNECT SWITCH MAIN METER & PANEL L1 L1 L2 12 ALL DC SYSTEM RACEWAYS SHALL BE LABELED "CAUTION DC CIRCUIT" EVERY 5 FEET PHOTOVOLTAIC TABLE 1 SUNPOWER PANELS PEAK POWER (STC) RATED VOLTAGE (Vmo) RATED CURRENT Clmo) OPEN CIRCUIT VOLTAGE (Voc) SHORT CIRCUIT CURRENT (Isc) Number of Strings Modules in Series Total Modules Power CSTC) Voltaqe (Vmp STC) Open Circuit Voltaae (Voc STC) Current Max Power (Imp STC) Short Circuit Current (Isc STC) Amp Design SPR-230-WHT 230 41 5.61 48.7 5.99 ARRAY A 4 7 28 6,440 287 340.9 22.44 23.96 37.44 Zip Code 92008 Averaae High (T) 74 Record Low (Tl 20 Exposed Conduit No System Total Watts (STC) 2 3 4 5 6 7 8 9 10 11 12 Conductor to J-Box (USE-2) Array Junction Box Distance to Inverter (feet) Conductor to Inverter (THWN-2) Vlin Conduit Size Percent Voltage Drop SUNPOWER INVERTER AC Power (watts) AC Max Output Current DC Voltage Range Min Conductor Ampacity Distance to Disc Sw (feet}_ Conductor to AC Disc Sw (THWN-2) Min Conduit Size Percent Voltage Drop AC Disconnect Switch Size Distance to Panel (feet) Conductor to Panel (THWN-2) Min Conduit Size Percent Voltage Drop Main Service Voltage Panel Bus Ratina (Amps) 120% of Bus Rating Main Breaker Size Capacity Available for Solar Breaker Solar Breaker Size (Amps) Utility Electric Meter Ground Electrode 6,440 #10 40 8#10 & 1#10G 3/4" EMT 0.19% SPR-6000m 6000 25 250 - 600 31.25 10 3#8 & 1#8G 3/4" EMT 0.20% 60A/2P 6 3#8 & 1#8G 3/4" EMT 0.12% 240 A = 200 240 200 40 35A/2P JOLLY RESIDENCE 7740 Buena Vista Way Carlsbad, CA 92008 SCALE: NONE JOB #: S1164 PHOTOVOLTAIC SINGLE LINE DIAGRAM BAKES EtECTRJC A R REV DATE: REV DATE: REV DATE: DATE: 9/1/2009 BY: she 2 I 1 iii SUNPOWER 5000m, 6000m & 7000m INVERTERS EXCEPTIONAL RELIABILITY AND PERFORMANCE BENEFITS FSrfS? : Reliable and Robust Design Proven track record for durability and longevity Effective Power Range Enables most systems to use a single : inverter rather than multiple units Commercial Use Flexible AC volkn-e output and scalable building "blocks create an easy solution for commercial applications High Efficiency Weighted CEC efficiency over 95.5% and peak efficiency over 97% Reduced installation Cost Integrated AC-DC disconnect with fuses lowers material costs and labor requirements Attractive Aesthetics Integrated disconnect eliminates need for visible conduiis to inverter The SunPower inverters 5000m, 6000m & 7000m provide exceptional reliability and market-leading design flexibility. The SPRm line of Solar Inverters can be easily applied in residential or commercial installations. All models come with a 10-year warranty. SPR-5000m; SPR-6000m & SPR-7000m www.sunpowercorp.com SUN POWER 5000m, 6000m & 7000m INVERTERS EXCEPTIONAL RELIABILITY AND PERFORMANCE Electrical Data SPR-5000m SPR-6000m SPR-7000m AC Power 5000 W 6000 W 7000 W AC Max Output Current (@ 208V, 240V, 277V): AC Nominal Voltage / Range 24A, 20.8A, 18A 29A, 25A, 21.6A 34A, 29A, 25.3A 183-229V 6208 VAC 183-229V 6 208 VAC 183-229V 6 208 VAC 211-264V6240VAC 211 -264V@240VAC 211-264V « 240 VAC 244-305V 6277 VAC 244-305V 8 277 VAC 244 - 305 V @ 277 VAC 60Hz/59.3Hz- 60Hz/59.3Hz- 60Hz/59.3Hz- 60.5 Hz 60.5 Hz 60.5 Hz 97.0% 95.5 % 6 208 V 95.5 % @ 240 V 96.0 % e 277 V 97.1% 96.0 % 8 208 V 96.0% 6240V 96.0 % ffl 240V 7500 W 250-600V 250-600V 250-600V 250-480V 250-480V 250-480V 30 A Recommended Array Input Power |DC@srq Power Consump: Standby / Nighttime Standard; Complies with NEC Standards SPRm Efficiency Curves 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% % of Rated Output Power HH^BHMHHHWgMHHH8HHHMMfl^^^^H^^HBH^H^HH8Bffii| Mechanical Data Shipping Dimensions W x H x D inches 23.5" x 31.0" x 16.0" Unit Dimensions W x H x D inches 18.4" x 24.1" x 9.5" Inverter Weight 143 IBs Shipping Weight 154 Ibs Cooling Forced Air / Seated Electronics Enclosure Enclosure Mounting Ambient temperature Range NEMA3R Wall Mount Bracket Standard -13to+113°F Warranty Certifications Warranty and Certificate 10 year limited warranty Compliance: IEEE-929, IEEE-1547, UL 1741-2005, UL1998, FCC Part 15 A&B SunPower designs, manufactures and delivers high-performance solar electric technology worldwide. Our high-efficiency solar cells generate up to 50 percent more power than conventional solar cells. Our high-performance solar panels, roof tiles and trackers deliver significantly more energy than competing systems. 2007 SunPower Corporation All rights reserved Specification! included in this datasheet are subject to change without notice Document (1001-16967 Rev ' www.sunpowercorp.com I 230 SOLAR PANEL EXCEPTIONAL EFFICIENCY AND PERFORMANCE BENEFITS Highest Efficiency Panel •efficiency of 'I 8.5% is higher than any commercially available panel of similar size More Power Delivers up to 50% mart; power per unit area fhan conventional sotar panels and 100% more than thin film solar .panels: Reduces Installation Cost More power per panel means fewer panels per install. This saves both time and money. \ Reliable and Robust Design Proven materials, tempered front glass and a sturdy anbHizefil frame allow panel to operate reliably in mdfipb mounting Th« SunPower 230 Solar Panel provides today's highest efficiency and performance. Utilizing 72 next generation SunPower all-back contact solar cells and an optimized panel design, the SunPower 230 delivers an unprecedented total panel conversion efficiency of 1 8.5%. The 230 panel's reduced voltage-temperature coefficient and exceptional low-light performance attributes provide far higher energy delivery per peak power than conventional panels. SunPower's High Efficiency Advantage - Up to Twice the Power Compct Watts / Panel Efficiency kWs Thin Film 65 9.0% 90 Conventional 165 12.0% 120 230' 18.5% 185 SPR-230-WHT ce I US 230 SOLAR PANEL EXCEPTIONAL EFFICIENCY AND PERFORMANCE Peak Power (+/-5%) Rated Voltage Rated Current Open Circuit Voltage Short Circuit Current Maximum System Voltage Temperature Coefficients Series Fuse Rating Peak Power per Unit Area CEC PTC Rating n?, air mass 1.5g, atsd >:^ fes.-T.sruture 25" C 230 W 41.0V 5.61 A 48.7V 5.99 A 1 000 V, 600V Power Voltage (Voc) Current jlsc] -0.38% /°C -132.5 mV/°C 3.5 mA/°C 20A 185W/m2, 17.2W/TT2 213.5W 5.0 "X»W/m2 500 W/B.2 • ..... 4—41000 Wm1 of 50 0 10 20 30 40 50 60 Voltage (V) Current/voltage characteristics with dependence on irradiance and module temperature. Solar Ceils 72 SunPower all-back contact mono-crystalline Front Glass 3.2mm (1/8 in] tempered junction Box IP-65 rated with 3 bypass diodes Output Cables 900 mm length / Mulli-Contact connectors Frame Anodized aluminum alloy type 6063 Weight 15kg, 33 Ibs Temperature Max load Impact Resistance iii Warranty Certifications -40° C to +85° C (-40° F to +185° F) 50 psf (2400 Pascals] front and back Hail- 25mm (1 in) at 23 m/s [52 mph) 25 year limited power warranty 5 year limited product warranty IEC 61215 , Safer/ tested IEC 61730; UL listed (UL 1703), Class C Fire Rating Dimensions Z l— 8X06.6_ l.2|.16) READ AND THE Go to www.sunpowercorp.com/panels for details SunPower designs, manufactures and delivers high-performance solar electric technology worldwide. Our high-efficiency solar cells generate up to 50 percent more power than conventional solar cells. Our high-performance solar panels, roof tiles and trackers deliver significantly more energy than competing systems. © October 2007 SunPower Corporation. All rights reserved. Specifications included in this datasheet are subject to change without notic ^ A Printed on recycled paper Document #001-42189 Rev ' www.sunpowercorp.com &COMPANY 4900 LangAve. NE Albuquerque, NM 87109 P.O. Box 94000, 87199-4000 505-348-4000 505-348-4055 Fax Albuquerque Colorado Springs Denver Fort Worth Houston Kansas City Lenexa Omaha Pasadena Phoenix Rio Rancho Salina San Bernardino San Diego Wilson & Company Latin America, LLC 27 February, 2008 Applications Engineering Department UniRac, Inc. 1411 Broadway Boulevard NE Albuquerque, New Mexico 87102-1545 Re: Engineering Certification for UniRac's SolarMount Flush, Code-Compliant Installation Manual 227 WCEAFile: 08-100-20400 To Whom It May Concern: I have reviewed the portions of the subject manual pertaining to the structural calculation of applied loads and beam selection. Specifically, this consists of "Part L Procedure to Determine the Design Wind Load", and "Part II. Procedure to Select Rail Span and Rail Type." The procedures guide the user through the calculation of design wind force, load combinations, and beam selection. All calculations associated with the procedures have been checked and found to be in compliance with the codes listed in the next paragraph. The procedures are based on and in compliance with the following codes/standards: 1. 2M7 California Building Code (CBC), based on the 2006 International Building Code, by International Code Council, Inc., 2006. 2. Aluminum Design Manual: Specifications and Guidelines for Aluminum Structures, by The Aluminum Association, Washington, D.C,, 2000. Mechanical properties of the UNIRAC extruded rails and related components are based on data obtained from Walter Gerstle, P.E., Department of Civil Engineering, University of New Mexico, Albuquerque, NM. WILSON & COMPANY, INC., ENGINEERS & ARCHITECTS Page 2 &COMPANY I certify that the structural calculations in UniRac's SolarMount Flush, Code-Compliant Installation Manual 227 are in compliance with the above codes. WILSON & COMPANY Steven J. Metro, Executive Vice President, P.E. -gwk cc: Gary Kinchen, P,E. .»»»»*""*,•£•"??<&•. SOlARMOUNt Code-Compliant Installation Manual 227 U.S. Des. Patent No. 0496,2488,0496,2498. Other patents pending. Table of Contents i. Installer's Responsibilities . Part I. Procedure to Determine the Design Wind Load . Part II. Procedure to Select Rail Span and Rail Type. Part III. Installing SolarMount [3.1.] SolarMount rail components . [3.2.] Installing SolarMount with top mounting clamps. [3.3.] Installing SolarMount with bottom mounting clips [3.4.]Installing SolarMount with grounding clips and lugs . :::UNIRAC Bright Thinking in Solar Unirac welcomes input concerning the accuracy and user-friendliness of this publication. Please write to publications@unirac.com, ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount i. Installer's Responsibilities Please review this manual thoroughly before installing your SolarMount system. This manual provides (1) supporting documentation for building permit applications relating to Unirac's SolarMount Universal PV Module Mounting system, and (2) planning and assembly instructions for SolarMount SolarMount products, when installed in accordance with this bulletin, will be structurally adequate and will meet the structural requirements of the ffiC 2006, IBC 2003, ASCE 7- 02, ASCE 7-05 and California Building Code 2007 (collectively referred to as "the Code"). Unirac also provides a limited warranty on SolarMount products (page 26). SolarMount is much more than a product. It's a system of engineered components that can be assembled into a wide variety of PV mounting structures. With SolarMount you'll be able to solve virtually any PV module mounting challenge. It's also a system of technical support: complete installation and code compliance documentation, an on-line SolarMount Estimator, person-to-person customer service, and design assistance to help you solve the toughest challenges. Which is why SolarMount is PVs most widely used mounting system. The installer is solely responsible for: • Complying with all applicable local or national building codes, including any that may supersede this manual; • Ensuring that Unirac and other products are appropriate for the particular installation and the installation environment; • Ensuring that the roof, its rafters, connections, and other structural support members can support the array under all code level loading conditions (this total building assembly is referred to as the building structure); • Using only Unirac parts and installer-supplied parts as specified by Unirac (substitution of parts may void the warranty and invalidate the letters of certification in all Unirac publications); • Ensuring that lag screws have adequate pullout strength and shear capacities as installed; • Verifying the strength of any alternate mounting used in lieu of the lag screws; • Maintaining the waterproof integrity of the roof, including selection of appropriate flashing; • Ensuring safe installation of all electrical aspects of the PV array; and • Ensuring correct and appropriate design parameters are used in determining the design loading used for design of the specific installation. Parameters, such as snow loading, wind speed, exposure and topographic factor should be confirmed with the local building official or a licensed professional engineer. SolarMount Unirac Code-Compliant Installation Manual Si* L) NIRAC Part I. Procedure to Determine the Design Wind Load [1.1.] Using the Simplified Method - ASCE 7-05 The procedure to determine Design Wind Load is specified by the American Society of Civil Engineers and referenced in the International Building Code 2006. For purposes of this document, the values, equations and procedures used in this document reference ASCE 7-05, Minimum Design Loads for Buildings and Other Structures. Please refer to ASCE 7-05 if you have any questions about the definitions or procedures presented in this manual. Unirac uses Method 1, the Simplified Method, for calculating the Design Wind Load for pressures on components and cladding in this document. The method described in this document is valid for flush, no tilt, SolarMount Series applications on either roofs or walls. Flush is defined as panels parallel to the surface (or with no more than 3" difference between ends of assembly) with no more than 10" space between the roof surface, and the bottom of the PV panels. This method is not approved for open structure calculations. Applications of these procedures is subject to the following ASCE 7-05 limitations: 1. The building height must be less than 60 feet, h < 60. See note for determining h in the next section. For installations on structures greater than 60 feet, contact your local Unirac Distributor. 2. The building must be enclosed, not an open or partially enclosed structure, for example a carport. 3. The building is regular shaped with no unusual geometrical irregularity in spatial form, for example a geodesic dome. 4. The building is not in an extreme geographic location such as a narrow canyon or steep cliff. 5. The building has a flat or gable roof with a pitch less than 45 degrees or a hip roof with a pitch less than 27 degrees. 6. If your installation does not conform to these requirements please contact your local Unirac distributor, a local professional engineer or Unirac If your installation is outside the United States or does not meet all of these limitations, consult a local professional engineer or your local building authority. Consult ASCE 7-05 for more clarification on the use of Method I. Lower design wind loads may be obtained by applying Method II from ASCE 7-05. Consult with a licensed engineer if you want to use Method II procedures. The equation for determining the Design Wind Load for components and cladding is: Pnet (psf) = AKzJpnet30 Pnet (psf) = Design Wind Load A = adjustment factor for height and exposure category Kzt = Topographic Factor at mean roof height, h (ft) I = Importance Factor Pnetao (psf) = net design wind pressure for Exposure B, at height = 30,1=1 You will also need to know the following information: Basic Wind Speed = V (mph), the largest 3 second gust of wind in the last 50years. h (ft) = total roof height for flat roof buildings or mean roof height for pitched roof buildings Effective Wind Area (sf) = minimum total continuous area of modules being installed Roof Zone = the area of the roof you are installing the pv system according to Figure 2, page 5. Roof Zone Setback Length = a (ft) Roof Pitch (degrees) Exposure Category [1.2.] Procedure to Calculate Total Design Wind The procedure for determining the Design Wind Load can be broken into steps that include looking up several values in different tables. Step 1: Determine Basic Wind Speed, V(mph) Determine the Basic Wind Speed, V (mph) by consulting your local building department or locating your installation on the maps in Figure 1, page 4. Step 2: Determining Effective Wind Area Determine the smallest area of continuous modules you will be installing. This is the smallest area tributary (contributing load) to a support or to a simple-span of rail. That area is the Effective Wind Area. —T ••* U NIR AC Unirac Code-Compliant Installation Manual SolarMount Miles per hour (meters per second) Figure 1. Basic Wind Speeds. Adapted and applicable to ASCE 7-05. Values are nominal design 3-second gust wind speeds at 33 feet above ground for Exposure Category C. 90(40) 100(45) /Il30<58) 110(49) 120(54} Step 3: Determine Roof/Wall Zone The Design Wind Load will vary based on where the installation is located on a roof. Arrays may be located in more than one roof zone. Using Table 1, determine the Roof Zone Setback Length, a (ft), according to the width and height of the building on which you are installing the pv system. Table I. Determine Roof/Wall Zone, length (a) according to building width and height a = 10 percent of the least horizontal dimension or 0.4h, whichever is smaller, but not less than either 4% of the least horizontal dimension or 3 ft of the building. Roof Height (ft 10 15 20 25 30 35 40 45 SO 60 Least Horizontal Dimension (ft) 10 3 3 3 3 3 3 3 3 3 3 /5 3 3 3 3 3 3 3 3 3 3 20 3 3 3 3 3 3 3 3 3 3 25 3 3 3 3 3 3 3 3 3 3 30 3 3 3 3 3 3 3 3 3 3 40 4 4 4 4 4 4 4 4 4 4 50 4 5 5 5 $ 5 5 5 5 5 60 4 6 6 6 6 6 6 6 6 6 70 4 6 7 7 7 7 7 7 7 7 80 4 6 8 8 8 8 8 8 8 8 90 4 6 8 9 9 9 9 9 9 9 100 4 6 8 10 10 10 10 10 10 10 125 5 6 8 10 12 12.5 I2.S 12.5 12.5 12.5 ISO 6 6 8 10 12 14 IS 15 15 15 175 7 7 B 10 12 14 16 17.5 17.5 17.5 200 8 8 8 10 12 14 16 18 20 20 300 12 12 12 12 12 14 16 18 20 24 400 16 16 16 16 16 16 16 18 20 24 500 20 20 20 20 20 20 20 20 20 24 Source: ASCE/SB 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, figure 6-3, p. 41. SolarMount Unirac Code-Compliant Installation Manual •••UNI RAC Step 3: Determine Roof Zone (continued) Using Roof Zone Setback Length, a, determine the roof zone locations according to your roof type, gable, hip or monoslope. Determine in which roof zone your pv system is located, Zone 1, 2, or 3 according to Figure 2. Figure 2. Enclosed buildings, wall and roofs Flat Roof h I; a - ,-a' Gable Roof ( 6 < 7°) h ;'<s fe'a v- Interior Zones Roofs - Zone I /Walls - Zone 4 Hip Roof (7° <6< IT)4* Gable Roof (7 < 6 < 45 End Zones Roofs - Zone 2/Walls - Zone 5 Corner Zones Roofs - Zone 3 Source: ASCE/SEI 7-05, Minimum Design Loads for Bui/dings and Other Structures, Chapter 6, p. 41. Step 4: Determine Wet Design Wind Pressure, Pnetso (psf) Using the Effective Wind Area (Step 2), Roof Zone Location (Step 3), and Basic Wind Speed (Step 1), look up the appropriate Net Design Wind Pressure in Table 2, page 6. Use the Effective Wind Area value in the table which is smaller than the value calculated in Step 2. If the installation is located on a roof overhang, use Table 3, page 7. Both downforce and uplift pressures must be considered in overall design. Refer to Section II, Step 1 for applying downforce and uplift pressures. Positive values are acting toward the surface. Negative values are acting away from the surface. ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount Table 2. pnet3o (psf) Roof and Wall Bos/c Wind Speed, V (mph)Roof 0 to 7 degreesRoof 7 to 27degreesRoof 27 to 45 degrees1 Zone \ 1 1 1 2 2 2 2 3 3 3 3 1 1 1 1 2 2 2 2 3 3 3 3 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 4 5 5 5 5 5 Effective W/ndAreo f«fl 10 20 SO 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 500 10 20 50 100 500 90 100 110 120 130 140 ISO 170 Downforee Uplift Downforce Uplift Dowrcforce Uplift Downforce Uplift Downforce Uplift Downfora Uplift Downforce Uplift Downforce Uplift 5.9 -14.6 7.3 -18.0 8.9 -21.8 10.5 -25.9 12.4 -30.4 14.3 -35.3 16.5 -40.5 21.1 -52.0 5.6 -14.2 6.9 -17.5 8.3 -21.2 9.9 -25.2 11.6 -29.6 13.4 -34.4 15.4 -39.4 19.8 -50.7 5.1 -13.7 6.3 -16.9 7.6 -20.5 9.0 -24.4 10.6 -28.6 12.3 -33.2 14.1 -38.1 18.1 -48.9 4.7 -13.3 5.8 -16.5 7.0 -19.9 8.3 -23.7 9.8 -27.8 11.4 -32.3 13.0 -37.0 16.7 -47.6 5.9 -24.4 7.3 -30.2 8.9 -36.5 10.5 -43.5 12.4 -51.0 14.3 -59.2 16.5 -67.9 21.1 -87.2 5.6 -21.8 6.9 -27.0 8.3 -32.6 9.9 -38.8 .11.6 -45.6 13.4 -52.9 15.4 -60.7 19.8 -78.0 5.1 -18.4 6.3 -22.7 7.6 -27.5 9.0 -32.7 10.6 -38.4 12.3 -44.5 14.1 -51.1 18.1 -65.7 4.7 -!5.8 5.8 -19.5 7:0 -23.6 8.3 -28.1 9.8 -33.0 11.4 -38.2 13.0 -43.9 16.7 -56.4 5.9 -36.8 7.3 -45.4 8.9 -55.0 10.5 -65.4 114 -76.8 14.3 -89.0 16.5 -102.2 21.1 -131.3 5.6 -30.5 6.9 -37.6 8.3-45.5 9.9 -54.2 11.6 -63.6 13.4 -73.8 15.4 -84.7 19.8 -108.7 5.1 -22.1 6.3 -27.3 7.6 -33.1 9.0 -39.3 10.6 -46.2 12.3 -53.5 14.1 -61.5 18.1 -78.9 4.7 -15.8 5.8 -19.5 7.0 -23.6 8.3 -28.1 9.8 -33.0 11.4 -38.2 13.0 -43.9 16.7 -56.4 8.4 -13.3 10.4 -16.5 12.5 -19.9 14.9 -23.7 17.5 -27.8 20.3 -32.3 23.3 -37.0 30.0 -47.6 7.7 -13.0 9.4 -16.0 11.4 -19.4 13.6 -23.0 16.0 -27.0 18.5 -31.4 21.3 -36.0 27.3 -46.3 6.7 -12.5 8.2 -15.4 10.0 -18.6 11.9 -22.2 13.9 -26.0 16.1 -30.2 18.5 -34.6 23.8 -44.5 5.9 -12.1 7.3 -14.9 8.9 -18. 1 10.5 -21.5 12.4 -25.2 14.3 -29.3 16.5 -33.6 21.1 -43.2 8.4 -23.2 10.4 -28.7 12.5 -34.7 14.9 -41.3 17.5 -48.4 20.3 -56.2 23.3 -64.5 30.0 -82.8 7.7 -21.4 9.4 -26.4 1.1.4 -31.9 13.6 -38.0 16.0 -44.6 18.5 -51.7 21.3 -59.3 27.3 -76.2 6.7 -18.9 8.2 -23.3 10.0 -28.2 11.9 -33.6 13.9 -39.4 16.1 -45.7 18.5 -52.5 23.8 -67.4 5.9 -17.0 7.3 -21.0 8.9 -25.5 10.5 -30.3 12.4 -35.6 14.3 -41.2 16.5 -47.3 21.1 -60.8 8.4 -34.3 10.4 -42.4 12.5 -51.3 14.9 -61.0 17.5 -71.6 20.3 -83.1 23.3 -95.4 30.0 -122.5 7.7 -32.1 9.4 -39.6 11.4 -47.9 13.6 -57.1 16.0 -67.0 18.5 -77.7 21.3 -89.2 27.3 -114.5 6.7 -29.1 8.2 -36.0 10.0 -43.5 11.9 -51.8 13.9 -60.8 16.1 -70.5 18.5 -81.0 23.8 -104.0 5.9 -26.9 7.3 -33.2 8.9 -40.2 10.5 -47.9 12.4 -56.2 14.3 -65.1 16.5 -74.8 21.1 -96.0 13.3 -14.6 16.5 -18.0 19.9 -21.8 23.7 -25.9 27.8 -30.4 32.3 -35.3 37.0 -40.5 47.6 -52.0 13.0 -!3.8 16.0 -17.1 19.4 -20.7 23.0 -24.6 27.0 -28.9 31.4 -33.5 36.0 -38.4 46.3 -49.3 12.5 -12.8 15.4 -15.9 18.6 -19.2 22.2 -22.8 26.0 -26.8 30.2 -31.1 34.6 -35.7 44.5 -45.8 12.1 -12.1 14.9 -14.9 18.1 -18.1 21.5 -21.5 25.2 -25.2 29.3 -29.3 33.6 -33.6 43.2 -43.2 13.3 -17.0 16.5 -21.0 19.9 -25.5 23.7 -30.3 27.8 -35.6 32.3 -41.2 37.0 -47,3 47.6 -60.8 13.0 -16.3 16.0 -20.1 19.4-24.3 23.0 -29.0 27.0 -34.0 31.4 -39.4 36.0 -45,3 46.3 -58.1 12.5 -15.3 15.4 -18.9 18.6 -22.9 22.2 -27.2 26.0 -32.0 30.2 -37.1 34.6 -42.5 44.5 -54.6 12.1 -14.6 14.9 -18.0 18.1 -21.8 21.5 -25.9 25.2-30.4 29.3 -35.3 33.6 40.5 43.2 -52.0 13.3 -17.0 16.5 -21.0 19.9 -25.5 23.7 -30.3 27.8 -35.6 32.3 -41.2 37.0 -47.3 47.6 -60.8 13.0 -16.3 16.0 -20.1 19.4 -24.3 23.0 -29.0 27.0 -34.0 31.4 -39.4 36.0 -45.3 46.3 -58.1 12.5 -15.3 15.4 -18.9 18.6 -22.9 22.2 -27.2 26.0 -32.0 30.2 -37.1 34.6 -42.5 44.5 -54.6 12.1 -14.6 14.9 -18.0 18.1 -21.8 21.5 -25.9 25.2 -30.4 29.3 -35.3 33.6 -40.5 43.2 -52.0 14.6 -15.8 18.0 -19.5 21.8 -23.6 25.9 -28.1 30.4 -33.0 35.3 -38.2 40.5 -43.9 52.0 -56.4 13.9 -15.1 17.2 -18.7 20.8 -22.6 24.7 -26.9 29.0 -31.6 33.7 -36.7 38.7 -42.1 49.6 -54.1 13.0 -14.3 16.1 -17.6 19.5 -21.3 23.2 -25.4 27.2 -29.8 31.6 -34.6 36.2 -39.7 46.6 -51.0 12.4 -13.6 15.3 -16.8 18.5 -20.4 22.0 -24.2 25.9 -28.4 30.0 -33.0 34.4 -37.8 44.2 -48.6 10.9 -12.1 13.4 -14.9 16.2 -18.1 19.3 -21.5 22.7 -25.2 26.3 -29.3 30.2 -33.6 38.8 -43.2 14.6 -19.5 18.0 -24.1 21.8 -29.1 25.9 -34.7 30.4 -40.7 35.3 -47.2 40.5 -54.2 52.0 -69.6 13.9 -18.2 17.2 -22.5 20.8 -27.2 24.7 -32.4 29.0 -38.0 33.7 -44.0 38.7-50.5 49.6 -64.9 13.0 -16.5 16.1 -20.3 19.5 -24.6 23.2 -29.3 27.2 -34.3 31.6 -39.8 36.2 -45.7 46.6 -58.7 12.4 -15.1 15.3 -18.7 18.5 -22.6 22.0 -26.9 25.9 -31.6 30.0 -36.7 34.4 -42.1 44.2 -54.1 10.9-12.1 13.4 -14.9 16.2-18.1 19.3 -21.5 22.7 -25.2 26.3 -29.3 30.2 -33.6 38.8 -43.2 Source: ASCE/SE/ 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, p. 42-43.Page SolarMount Unirac Code-Compliant Installation Manual K* U N i RAC Table 3. pnet3o (psf) Roof Overhang Roof 0 to 7 degreesRoof 7 to 27degrees| Roof 27 to 45 degreesZone 2 2 2 2 3 3 3 3 2 2 2 2 3 3 3 3 2 2 2 2 3 3 3 3 Effective Wind Area to 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 10 20 50 100 Basic Wind Speed V (mfth) 90 100 110 120 130 140 ISO 170 -21.0 -25.9 -31.4 -37.3 -43.8 -50.8 -58.3 -74.9 -20.6 -25.5 -30.8 -36.7 -43.0 -49.9 -57.3 -73.6 -20.1 -24.9 -30,1 -35.8 i -42.0 -48.7 •;; -55.9 -71.8 -19.8 -24.4 -29.5 -35.1 -41.2 -47.8 -54.9 -70.5 -34.6 -42.7 -51.6 -61.5 -72.! -83.7 -96.0 -123.4 -27.1 -33.5 -40.5 -48.3 -56.6 -65.7 -75.4 -96.8 -17.3 -21.4 -25.9 -30.8 -36.1 -41.9 -48.1 -61.8 -10.0 -12.2 -14.8 -17.6 -20.6 -23.9 -27.4 -35.2 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 -75.5 -96.9 -27.2 -33.5 -40,6 -48.3 -56.7 -65.7 -75.5 -96.9 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 -75.5 -96.9 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 -75.5 -96.9 -45.7 -56.4 -68.3 -81.2 -95.3 -110.6 -126.9 -163.0 -41.2 -50.9 -61.6 -73.3 -86.0 -99.8 -114.5 -147.1 -35.3 -43.6 -52.8 -62.8 -73.7 -85.5 -98.1 -126.1 -30.9 -38.1 -46.1 -54.9 -64.4 -74.7 -85.8 -IIO.I -24.7 -30.5 -36.9 -43.9 -51.5 -59.8 -68.6 -88.1 -24.0 -29.6 -35.8 -42.6 -50.0 -58.0 -66.5 -85.5 -23.0 -28.4 -34.3 -40.8 -47.9 -55.6 -63.8 -82.0 -22.2 -27.4 -33.2 -39.5 -46.4 -53.8 -61.7 -79.3 -24.7 -30.5 -36.9 -43.9 -51.5 -59.8 -68.6 -88.1 -24.0 -29.6 -35.8 -42.6 -50.0 -58.0 -66.5 -85.5 -23.0 -28.4 -34.3 -40.8 -47.9 -55.6 -63.8 -82.0 -22.2 -27.4 -33.2 -39.5 -46.4 -53.8 -61.7 -79.3 Source: ASCE/SB 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, p. 44. Step 5: Determine the Topographic Factor, Kzt For the purposes of this code compliance document, the Topographic Factor, Kzt, is taken as equal to one (1), meaning, the installation is on level ground (less than 10% slope). If the installation is not on level ground, please consult ASCE 7-05, Section 6.5.7 and the local building authority to determine the Topographic Factor, Step 6: Determine Exposure Category (B, C, D) Determine the Exposure Category by using the following definitions for Exposure Categories. The ASCE/SEI7-05* defines wind exposure categories as follows: EXPOSURE B is urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions having the size of single family dwellings. EXPOSURE c has open terrain with scattered obstruc- tions having heights generally less than 30 feet. This category includes flat open country, grasslands, and all water surfaces in hurricane prone regions. EXPOSURE D has flat, unobstructed areas and water surfaces outside hurricane prone regions. This catego- ry includes smooth mud fiats, salt flats, and unbroken ice. Also see ASCE 7-05 pages 287-291 for further explanation and explanatory photographs, and confirm your selection with the local building authority. ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount Step 7: Determine adjustment factor for height and exposure category, A Using the Exposure Category (Step 6) and the roof height, h (ft), look up the adjustment factor for height and exposure in Table 4. Step 8: Determine the Importance Factor, I Determine if the installation is in a hurricane prone region. Look up the Importance Factor, I, Table 6, page 9, using the occupancy category description and the hurricane prone region status. Step 9: Calculate the Design Wind Load, pnet (psf) Multiply the Net Design Wind Pressure, pmt30 (psf) (Step 4) by the adjustment factor for height and exposure, /\ (Step 7), the Topographic Factor, Kzt (Step 5) , and the Importance Factor, I (Step 8) using the following equation: = AKaIpnet30 Pnet (psf) = Design Wind Load (10 psf minimum) A = adjustment factor for height and exposure category (Step 7) Kzt = Topographic Factor at mean roof height, h (ft) (Step 5) / = Importance Factor (Step 8) Pnetso (psf) = net design wind pressure for Exposures, at height = 30,1=1 (Step 4) Use Table 5 below to calculate Design Wind Load. The Design Wind Load will be used in Part II to select the appropriate SolarMount Series rail, rail span and foot spacing. Table 4. Adjustment Factor for Roof Height & Exposure Category Exposure height (ft) 15 20 25 30 35 40 45 50 55 60 B .00 .00 .00 .00 .05 .09 .12 .16 .19 .22 C .21 .29 .35 .40 .45 .49 .53 .56 .59 .62 D .47 .55 .61 .66 .70 .74 .78 .81 .84 .87 Source: ASCEJSEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, p. 44. Table S.Worksheet for Components and Cladding Wind Load Calculation: IBC 2006.ASCE 7-05 Vbrioole Description Building Height ------ ; Building, Least Horizontal Dimension Exposure Category Bai^WWSpeexte,- , - Effective Roof Area Roof Zone Setback Length Roof Zone Location Net ^Design Wind Pressure, Topographic Factor adjustment factor for height and exposure category Importance Factor Total Design Wlni Load Symbol Vblue ft ;, - - V ' "" a pmt30 K-zt X A x / X Pnet Unit ' -- ft"' ft ^ - ".f: -decrees : mpti sf ft psf .., psf Step 6 ' "j| 2, 3 , 3 '- 4" 5 7 8 9 Reference -, ; .^- 'f' figure 1 „ ; VTabteJ,-, , Figure 2 Tabte2,3 Table 4 Table 5 8 SolarMount Unirac Code-Compliant Installation Manual ••"UNI RAC Table 6. Occupancy Category Importance Factor Category 1 II III IV Category Desicription Buildings and other structures that represent a low hazard to human life in the event of failure, including, but limited to: All buildings and other structures except those listed in Occupancy Categories 1, III, and IV. Buildings and other structures that represent a substantial hazard to human life in the event of a failure, including, but not limited to: Buildings and other structures designated as essential facilities, including, but not limited to: Bui/dingTyfje Examples Agricultural facilities Certain Temporary facilities Minor Storage facilities Buildings where more than 300 people congregate Schools with a capacity more than 250 Day Cares with a capacity more than 1 50 Buildings for colleges with a capacity more than 500 Health Care facilities with a capacity more than 50 or more resident patients Jails and Detention Facilities Power Generating Stations Water and Sewage Treatment Facilities Telecommunication Centers Buildings that manufacutre or house hazardous materials Hospitals and other health care facilities having surgery or emergency treatment Fire, rescue, ambulance and police stations Designated earthquake, hurricane, or other emergency shelters Designated emergency preparedness communication, and operation centers Power generating stations and other public utility facilities required in an emergency Ancillary structures required for operation of Occupancy Category IV structures Aviation control towers, air traffic control centers, and emergency aircraft hangars Water storage facilities and pump structures required to maintain water pressure for fire suppression Buildings and other structures having critical national defense functions Non-Hurricane Prone Regions and Hurricane Prone Regions with Basic Wind Speed, V = 85-100 mph, and Alaska 0.87 1 1.15 1.15 Hurricane Prone Re gions with Basic Wind Speed,V > lOOmph 0.77 1 1.15 1.15 Source: IRC 2006, Table 1604.5, Occupancy Category of Bui/dings and other structures, p. 28I;ASCEJSEI 7-05, Minimum DesignLoads for Buildings and Other Structures, Table 6-1, p. 77 ••" U NIRAC Unirac Code-Compliant Installation Manual SolarMount Part II. Procedure to Select Rail Span and Rail Type [2.1.] Using Standard Beam Calculations, Structural Engineering Methodology The procedure to determine the Unirac SolarMount series rail type and rail span uses standard beam calculations and structural engineering methodology. The beam calculations are based on a simply supported beam conservatively, ignoring the reductions allowed for supports of continuous beams over multiple supports. Please refer to Part I for more information on beam calculations, equations and assumptions. In using this document, obtaining correct results is dependent upon the following: 1. Obtain the Snow Load for your area from your local building official. 2. Obtain the Design Wind Load, pnet- See Part I (Procedure to Determine the Design Wind Load) for more information on calculating the Design Wind Load. 3. Please Note: The terms rail span and footing spacing are interchangeable in this document. See Figure 3 for illustrations. 4. To use Table 8 and Table 9 the Dead Load for your specific installation must be less than 5 psf, including modules and Unirac racking systems. If the Dead Load is greater than 5 psf, see your Unirac distributor, a local structural engineer or contact Unirac. The following procedure will guide you in selecting a Unirac rail for a flush mount installation. It will also help determine the design loading imposed by the Unirac PV Mounting Assembly that the building structure must be capable of supporting. Figure 3. Rail span and footing spacing are interchangeable. Step 1: Determine the Total Design Load The Total Design Load, P (psf) is determined using ASCE 7-05 2.4.1 (ASD Method equations 3,5,6 and 7) by adding the Snow Load1, S (psf), Design Wind Load, pnet (psf) from Part I, Step 9 and the Dead Load (psf). Both Uplift and Downforce Wind Loads calculated in Step 9 of Part 2 must be investigated. Use Table 7 to calculate the Total Design Load for the load cases. Use the maximum absolute value of the three downforce cases and the uplift case for sizing the rail. Use the uplift case only for sizing lag bolts pull out capacities (Part II, Step 6). p (psf) = l.OD + l.OS1 (downforce case 1) P (psf) = l.OD + l.Opnet (downforce case 2) p (psf) = l.OD + 0.75S1 + OJSpnet (downforce case 3) P (psf) = 0.6D + 1.0pmt (uplift) D = Dead Load (psf) S = Snow Load (psf) Pnet = Design Wind Load (psf) (Positive for downforce, negative for uplift) The maximum Dead Load, D (psf), is 5 psf based on market research and internal data. 1 Snow Load Reduction - The snow load can be reduced according to Chapter 7 of ASCE 7-05. The reduction is a function of the roof slope, Exposure Factor, Importance Factor and Thermal Factor. Please refer to Chapter 7 of ASCE 7-05 for more information. 10 Note: Modules must be centered symmetrically on the rails (+/- 2*), as shown in Figure 3. If this is not the case, call Unirac for assistance. SolarMount Unirac Code-Compliant Installation Manual SS" U NIRAC Table 7. ASCE 7 ASD Load Combinations Description Dead Load Snow Load Design Wind Load Total Design Load Variable D S Pnet P Downforce Case 1 1,0 x I.Ox + Dwnfcnre Case 2 ^: Downfbfce Case 3 :: Uplift I.Ox I.Ox 0.6 x n'7.?v + 1 0 x + 0 75 x •*• - 1 1 0 v - units psf psf Dsf psf Note: Table to be filled out or attached for evaluation. Step 2: Determine the Distributed Load on the rail, w(plf) Determine the Distributed Load, w (plf), by multiplying the module length, B (ft), by the Total Design Load, P (psf) and dividing by two. Use the maximum absolute value of the three downforce cases and the Uplift Case. We assume each module is supported by two rails. w = PB/2 w = Distributed Load (pounds per linear foot, plf) B = Module Length Perpendicular to Raib (ft) P = Total Design Pressure (pounds per square foot, psf) Table 8. L-Foot SolarMount Series Rail Span Step 3: Determine Rail Span/ L-Foot Spacing Using the distributed load, w, from Part II, Step 2, look up the allowable spans, L, for each Unirac rail type, SolarMount (SM) and SolarMount Heavy Duty (HD). There are two tables, L-Foot SolarMount Series Rail Span Table and Double L-Foot SolarMount Series Rail Span Table. The L-Foot SolarMount Series Rail Span Table uses a single L-foot connection to the roof, wall or stand-off. The point load connection from the rail to the L-foot can be increased by using a double L-foot in the installation. Please refer to the Part III for more installation information. SM - SolarMount HD - SolarMount Heavy Duty Span (ft) 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 II 11.5 12 12.5 13 13.5 14 14.5 IS 15.5 16 17 w = Distributed Load (plf) 20 :SM SM SM SM SM SM " SM SM SM :SM SM SM SM SM SM SM SM SM SM SM HD HOll HD HD HD Hi) HO HD HD 25 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM HO HO HD HU j| HD HO HD HD HD HD 30 SM SM SM SM SM SM SM SM SM SM SM SM : SM SM SM SM HD HD HD HD HD HO HO HD HD HD HD 40 SM SM SM SM SM SM SM SM SM SM SM SM SM HO HD HD HD HO HO HD 50 SM SM SM SM SM SM SM SM SM SM SM SM. J HD HD HD HD I HD; : HD HD mum 60 SM SM SM SM SM SM SM SM SM SM HD HD HD HD HD HD HD HD 80 SM SM SM SM SM SM SM SM r: HO, HD HD HD HD HD HD 100 120 140 160 180 200 220 240 260 280 300 SM SM SM SM SM SM: SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM HD SM SM SM HD SM HD HD; HD"" HD HD HD HD:! HD HD 11 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount Table 9. Double L-Foot SolarMount Series Rail Span SM - SolarMount HD - SolarMount Heavy Duty Step 4: Select Rail Type Selecting a span and rail type affects the price of your installation. Longer spans produce fewer wall or roof penetrations. However, longer spans create higher point load forces on the building structure. A point load force is the amount of force transferred to the building structure at each connection. It is the installer's responsibility to verify that the building structure is strong enough to support the point load forces. Step 5: Determine the Downforce Point Load, R (Ibs), at each connection based on rail span When designing the Unirac Flush Mount Installation, you must consider the downforce Point Load, R (Ibs) on the roof structure. The Downforce, Point Load, R (Ibs), is determined by multiplying the Total Design Load, P (psf) (Step 1) by the Rail Span, L (ft) (Step 3) and the Module Length Perpendicular to the Rails, B (ft) divided by two. R (Tbs) = PLB/2 R = Point Load (Ibs) P = Total Design Load (psf) L = Rail Span (ft) B = Module Length Perpendicular to Rails (ft) 12 It is the installer's responsibility to verify that the building structure is strong enough to support the maximum point loads calculated according to Step 5. SolarMount Unirac Code-Compliant Installation Manual !•" U N 1 K AL Table 1 0. Downforce Point Load Calculation Total Design Load (downforce) (max of case 1 , 2 or 3) Module length perpendicular to rails Rail Span Downforce Point Load p B L R psf x ft X ft 12 Ibs Step 1 Step 4 Step 6: Determine the Uplift Point Load, R (Ibs), at each connection based on rail span You must also consider the Uplift Point Load, R (Ibs), to determine the required lag bolt attachment to the roof (building) structure. Table I I. Uplift Point Load Calculation Total Design Load (uplift) Module length perpendicular to rails Rail Span Uplift Point Load P B L R psf x ft X ft 12 Ibs Step 1 Step 4 Table 12. Lag pull-out (withdrawal) capacities (Ibs) in typical roof lumber (ASD) Lag screw specifications Douglas Fir, Larch Douglas Fir, South Engelmann Spruce, Lodgepole Pine (MSR I650f & higher) Hem, Fir, Redwood (close grain) Hem, Fir (North) Southern Pine Spruce, Pine, Fir Spruce, Pine, Fir (E of 2 million psi and higher grades of MSR and MEL) Specific gravity 0.50 0.46 0.46 0.43 0.46 0.55 0.42 0.50 s/it" shaft,* per inch thread depth 266 235 235 212 235 307 205 266 f ] \nThread : depth : L! y ^I ^sesa s ^=^s \7 Sources-American Wood Council, NDS 2005,Table I I.2A, 11.3.2A. Notes: (I) Thread must be embedded in the side grain of a rafter or other structural member integral with the building structure. (2) Lag bolts must be located in the middle third of the structural member. (3) These values are not valid for wet service. (4) This table does not include shear capacities. If necessary, contact a local engineer to specify lag bolt size with regard to shear forces. (5) Install lag bolts with head and washer flush to surface (no gap). Do not over-torque. (6) Withdrawal design values for lag screw connections shall be multiplied by applicable adjustment factors if necessary. See Table (0.3. / in the American Wood Council NDS for Wood Construction. *Use flat washers with lag screws. Use Table 12 to select a lag bolt size and embedment depth to satisfy your Uplift Point Load Force, R (Ibs), requirements. It is the installer's responsibility to verify that the substructure and attachment method is strong enough to support the maximum point loads calculated according to Step 5 and Step 6. 13 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount Part III. Installing SolarMount The Unirac Code-Compliant Installation Instructions support applications for building permits for photovoltaic arrays using Unirac PV module mounting systems. This manual, SolarMount Planning and Assembly, governs installations using the SolarMount and SolarMount HD (Heavy Duty) systems. [3.1.] SolarMount® rail components Figure 4. SolarMount standard rail components. Rail - Supports PV modules. Use two per row of modules. 6105-T5 aluminum extrusion, anodized. Rail splice - Joins and aligns rail sections into single length of rail. It can form either a rigid or thermal expansion joint, 8 inches long, predrilled. 6105-T5 aluminum extrusion, anodized. Self-drilling screw - (No. 10 x %") - Use 4 per rigid splice or 2 per expansion joint. Galvanized steel. L-foot - Use to secure rails either through roofing material to building structure or standoffs. Refer to loading tables for spacing. Note: Please contact Unirac for use and specification of double L-foot. L-foot bolt (3/8" x %") - Use one per L-foot to secure rail to L-foot. 304 stainless steel. Flange nut (3/8 ") - Use one per L-foot to secure rail to L-foot. 304 stainless steel. Flattop standoff (optional) (3/8 ") - Use if L-foot bolt cannot be secured directly to rafter (with tile or shake roofs, for example). Sized to minimize roof to rail spacing. Use one per L-foot. One piece: Service Condition 4 (very severe) zinc-plated-welded steel. Includes 3/8 " x W bolt with lock washer for attaching L-foot. Flashings: Use one per standoff. Unirac offers appropriate flashings for both standoff types. Note: There is also a flange type standoff that does not require an L-foot. Aluminum two-peice standoff (4" and 7") - Use one per L-foot. Two-piece: 6105-T5 aluminum extrusion. Includes 3/8" x 3/4" serrated flange bolt with EPDM washer for attaching L-foot, and two /16" lag bolts. Lag screw for L-foot (5/16") - Attaches standoff to rafter. Top Mounting Clamps Top Mounting Grounding Clips and Lugs Installer supplied materials: • Lag screw for L-foot- Attaches L-foot or standoff to rafter. Determine the length and diameter based on pull- out values. If lag screw head is exposed to elements, use stainless steel. Under flashings, zinc plated hardware is adequate. • Waterproof roofing sealant - Use a sealant appropriate to your roofing material. Consult with the company currently providing warranty of roofing. 14 SolarMount Unirac Code-Compliant Installation Manual ••" U NIRAC [3.2.] Installing SolarMount with top mounting clamps This section covers SolarMount rack assembly where the installer has elected to use top mounting clamps to secure modules to the rails. It details the procedure for flush mounting SolarMount systems to a pitched roof. Mid Clamp SolarMount Rail End Clamp SotarMount Rail Figure 5. Exploded view of aflushmount installation mounted with L-feet. Table 14. Clamp kit part quantities Modules 2 3 4 5 6 7 8 End clamps 4 4 4 4 4 4 4 M/d c/amfis 2 4 6 8 10 12 14 'A" module clamp bolts 6 8 10 12 14 16 18 safety bolts 2 2 2 2 2 2 2 r %" flange J nuts / 8 10 12 14 16 18 20 k Stainless steel hardware can seize up, a process \ called galling. To significantly reduce its an anti-seize lubricant, available at auto parts stores, (2) shade hardware prior to installation, and (3) avoid spinning on nuts at high speed. See Installation Supplement 910, Galling and Its Prevention, atwww.unirac.com. Table I S.Wrenches and torque Wrench Recommended size torque (ft-lbs) '/*" hardware Ve" hardware 15 30 Tonjues ore not designated for use with wood 15 "T"' ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount [3.2.1] Planning your SolarMount® installations •*•«#* The installation can be laid out with rails parallel to the rafters or perpendicular to the rafters. Note that SolarMount rails make excellent straight edges for doing layouts. Center the installation area over the structural members as much as possible. Leave enough room to safely move around the array during installation. Some building codes require minimum clearances around such installations, and the user should be directed to also check "The Code'. The width of the installation area equals the length of one module. The length of the installation area is equal to: • the total width of the modules, • plus 1 inch for each space between modules (for mid- clamp), • plus 3 inches (1V4 inches for each pair of end clamps). Peak High-profile mode Low-profile mode Gutter Figure 6. Rails maybe placed parallel or perpendicular to rafters. 16 SolarMount Unirac Code-Compliant Installation Manual •••UNI RAC [3.2.2] Laying out L-feet L-feet (Fig. 7) are used for attachment through existing roof- ing material, such as asphalt shingles, sheathing or sheet metal to the building structure. Use Figure 8 or 9 below to locate and mark the position of the L-feet lag screw holes within the installation area. If multiple rows are to be installed adjacent to one another, it is not likely that each row will be centered above the rafters. Adjust as needed, following the guidelines in Figure 9 as closely as possible. Figure? —1 XX" : """"V i / \ r.,_l i ' 'K I* | ; •. „ ],„ 1 ^ \ "7""~ ( ;4 ' :::' / j - " /' ' "^ ' Lower roof edges1 Fii___li : 11 11/IK H || -_ ^"sTSAtJ>3t-\ ^y"d"u !!*•**•*, :Overhang 25% L max Foot spacing/— »-} Rai'ipan "L". *1 » u R L f 1 P V" -~^ ^Jf''' Rafters (Building Structure) 25% of module width| !J H• 50% of module $ width (TYP) 1 Note: Modules must be centered symmetrically on the rails (+/- 2*). If this is not the case, call Unirac for assistance. Figure 8. Layout with rails perpendicular to rafters. Installing L-feet Drill pilot holes through the roof into the center of the rafter at each L-foot lag screw hole location. Squirt sealant into the hole, and on the shafts of the lag screws. Seal the underside of the L- feet with a suitable sealant. Consult with the company providing the roofing warranty. Securely fasten the L-feet to the roof with the lag screws. Ensure that the L-feet face as shown in Figure 8 and 9. For greater ventila- tion, the preferred method is to place the single-slotted square side of the L-foot against the roof with the double-slotted side perpen- dicular to the roof. If the installer chooses to mount the L-foot with the long leg against the roof, the bolt slot closest to the bend must be used. 25% of module width 50% of module width p- Lower roof edge Rafters (Building Structure) ~7'}"f Fcjot spacinia/ j ], Hail Span, L S ' ,.,! Overhang 25% L max Note: Modules must be centered symmetrically on the rails (+/- 2*;. If this is not the case, call Unirac for assistance. Figure 9. Layout with rails parallel to rafters. 17 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount [3.2.3] Laying out standoffs Standoffs (Figure 10) are used for flashed installations, such as those with tile and shake shingles. Use Figure 11 or 12 to locate and mark the location of the standoff lag screw holes within the installation area. Remove the tile or shake underneath each standoff location, exposing the roofing underlayment. Ensure that the standoff base lies flat on the underlayment, but remove no more mate- rial than required for the flashings to be installed properly. The standoffs must be firmly attached to the building structure. Figure 10. Raised flange standoff (left) and flat top standoff used in conjunction with an L-fooL Overhang 25% L max P^L Foot spacing/_J 25' !]_ RgJ!_Span,_L _!]__ _J 50% modulewidth (TYP) Lower roof edge I ^ Rafters * (Building Structure) Note: Modules must be centered symmetrically on the rails (+/- 2*). If this is not the case, call Unirac for assistance. Figure 11. Layout with rails perpendicular to rafters.perpendicular to rafters. Overhang 25% of -*\ module width (TYP) | 50% B typical Overhang 25% L,max Rafters (Building Structure) Note: Modules must be centered symmetrically on the rails (+/-2*). If this is not the case, call Unirac for assistance. If multiple high-profile rows are to be installed adjacent to each other, it may not be possible for each row to be centered above the rafters. Adjust as needed, following the guidelines of Fig. 12 as closely as possible. Installing standoffs Drill 3/16 inch pilot holes through the underlayment into the center of the rafters at each standoff location. Securely fasten each standoff to the rafters with the two 5/16" lag screws. Ensure that the standoffs face as shown in Figure 11 or 12. Unirac steel standoffs ( 1 5/8 " O.D.) are designed for collared flashings available from Unirac. Aluminum two-piece standoffs (11/8 " O.D.) take all-metal flashings, also available from Unirac. Install and seal flashings and standoffs using standard building practices or as the company providing roofing warranty directs. Figure 12. Layout with rails parallel to rafters. 18 SolarMount Unirac Code-Compliant Installation Manual K* U NIRAC [3.2.4] Installing SolarMount rails Keep rail slots free of roofing grit or other debris. Foreign matter will cause bolts to bind as they slide in the slots. Installing Splices. If your installation uses SolarMount splice bars, attach the rails together (Fig. 13) before mounting the rails to the footings. Use splice bars only with flush installations or those that use low-profile tilt legs. Although structural, the joint is not as strong as the rail itself. A rail should always be supported by more than one footing on both sides of the splice. (Reference installation manual 908.1, Splices/Expansion Joints.) If using more than one splice per rail, contact Unirac concerning thermal expansion issues. Figure 13. Splice bars slide into the footing bolt slots of SolarMount rail sections. Mounting Rails on Footings. Rails may be attached to either of two mounting holes in the L-feet (Fig. 14). Mount in the lower hole for a low profile, more aesthetically pleasing installation. Mount in the upper hole for a higher profile, which will maximize airflow under the modules. This will cool them more and may enhance performance in hotter climates. Slide the 3/s-inch mounting bolts into the footing bolt slots. Loosely attach the rails to the footings with the flange nuts. Ensure that the rails are oriented to the footings as shown in Figure 8, 9, 11, or 12, whichever is appropriate. Aligning the Rail Ends. Align one pair of rail ends to the edge of the installation area (Fig. 15 or Fig. 16). The opposite pair of rail ends will overhang the side of the installation area. Do not trim them off until the installation is complete. If the rails are perpendicular to the rafters (Fig. 15), either end of the rails can be aligned, but the first module must be installed at the aligned end. If the rails are parallel to the rafters (Fig. 16), the aligned end of the rails must face the lower edge of the roof. Securely tighten all hardware after alignment is complete (28-32 ft Ibs). Mount modules to the rails as soon as possible. Large temperature changes may bow the rails within a few hours if module placement is delayed. Edge of installation area Figure 14. Foot-to-rail splice attachment Edge of installation area Figure 15. Rails perpendicular to the rafters.Figure 16. Rails parallel to the rafters. 19 •5* U NIRAC Unirac Code-Compliant Installation Manual SolarMount [3.2.5] Installing the modules Pre-wiring Modules. If modules are the Plug and Play type, no pre-wiring is required, and you can proceed directly to "Installing the First Module" below. If modules have standard J-boxes, each module should be pre-wired with one end of the intermodule cable for ease of installation. For safety reasons, module pre-wiring should not be performed on the roof. Leave covers off J-boxes. They will be installed when the modules are installed on the rails. Installing the First Module. In high-profile installations, the safety bolt and flange nut must be fastened to the module bolt slot at the aligned (lower) end of each rail. It will prevent the lower end clamps and clamping bolts from sliding out of the rail slot during installation. If there is a return cable to the inverter, connect it to the first module. Close the J-box cover. Secure the first module with T-bolts and end clamps at the aligned end of each rail. Allow half an inch between the rail ends and the end clamps (Fig.18). Finger tighten flange nuts, center and align the module as needed, and securely tighten the flange nuts (15 ft Ibs). Installing the Other Modules. Lay the second module face down (glass to glass) on the first module. Connect intermodule cable to the second module and close the J-box cover. Turn the second module face up (Fig. 17). With T-bolts, mid-clamps and flange nuts, secure the adjacent sides of the first and second modules. Align the second module and securely tighten the flange nuts (Fig. 19). For a neat installation, fasten wire management devices to rails with self-drilling screws. Repeat the procedure until all modules are installed. Attach the outside edge of the last module to the rail with end clamps. Trim off any excess rail, being careful not to cut into the roof. Allow half an inch between the end clamp and the end of the rail (Fig. 18). Check that all flange nuts on T-bolts are torqued to 15 ft Ibs. J-boxes Figure 17 Figure 18 Module frames 1/4" module boltand flange nut . - ™ ,/,:•;,! I Mid damp Figure 19 High-lipped module (cross section)Low-lipped module (cross section) SolarMouni' rail SolarMount rail Figure 20. Mid clamps and end clamps for lipped-frame modules are identical. A spacer for the end clamps is necessary only if the lips are located high on the module frame. 20 —f"- SolarMount Unirac Code-Compliant Installation Manual JS* U NIRAC [3.3] Installing SolarMount with bottom mounting clips This section covers SolarMount rack assembly where the installer has elected to use bottom mounting clamps to secure modules to the rails. It details the procedure for flush mounting SolarMount systems to a pitched roof. Figure 21. SMR and CB components Table 16. Wrenches and torque Wrench Recommended size torque (ft-lbs) 'A~ hardware %" hardware 15 30 Note.Torque specifications do not apply to tog bo/t Stainless steel hardware can seize up, a process called galling. To significantly reduce its likelihood, (1) apply lubricant to bolts, preferably an anti-seize lubricant, available at auto parts stores, (2) shade hardware prior to installation, and (3) avoid spinning on nuts at high speed. See Installation Supplement 910, Galling and Its Prevention, atwww.unirac.com. 21 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount [3.3.1] Planning the installation area Decide on an arrangement for clips, rails, and L-feet (Fig. 22). Use Arrangement A if the full width of the rails contacts the module. Otherwise use Arrangement B. Caution: If you choose Arrangement B, either (1) use the upper mounting holes of the L-feet or (2) be certain that the L-feet and clip positions don't conflict. If rails must be parallel to the rafters, it is unlikely that they can be spaced to match rafters. In that case, add structural supports - either sleepers over the roof or mounting blocks beneath it. These additional members must meet code; if in doubt, consult a professional engineer. Never secure the footings to the roof decking alone. Such an arrangement will not meet code and leaves the installation and the roof itself vulnerable to severe damage from wind. Leave enough room to safely move around the array during installation. The width of a rail-module assembly equals the length of one module. Note that L-feet may extend beyond the width of the assembly by as much as 2 inches on each side. The length of the assembly equals the total width of the modules. Distance between — lag bolt centers «« — Dista module J, Distance between Module boil ->f- Disiance between lag bolt centers «•— Distance between —i module mounting holes ••-1/4" o Figure 22. Clip Arrangements A and B 22 SolarMount Unirac Code-Compliant Installation Manual ••'UNI RAC [3.3.2] Laying out the installing L-feet L-feet are used for installation through existing low profile roofing material, such as asphalt shingles or sheet metal. They are also used for most ground mount installations. To ensure that the L-feet will be easily accessible during flush installation: • Use the PV module mounting holes nearest the ends of the modules. • Situate the rails so that footing bolt slots face outward. The single slotted square side of the L-foot must always lie against the roof with the double-slotted side perpendicular to the roof. Foot spacing (along the same rail) and rail overhang depend on design wind loads. Install half the L-feet: • If rails are perpendicular to rafters (Fig. 23), install the feet closest to the lower edge of the roof. • If rails are parallel to rafters (Fig 24), install the feet for one of the rails, but not both. For the L-feet being installed now, drill pilot holes through the roofing into the center of the rafter at each lag screw hole location. Squirt sealant into the hole and onto the shafts of the lag screws. Seal the underside of the L-feet with a sealant. Securely fasten the L-feet to the building structure with the lag screws. Ensure that the L-feet face as shown in Figure 23 or Figure 24. Hold the rest of the L-feet and fasteners aside until the panels are ready for the installation. 1J " SolarMoulit RaJts11 it Figure 23. Layout with rails perpendicular to rafters. nai ici»Tlj' -* •* -» -*• + •» m •*• §•«• -«• I.*-•*• • '«-"«- K— Rlnrkc • «- §«•4- ««" «- • «-«• - install u-reei First ~ 1Install I -Fe«»t Second Figure 24. Layout with rails parallel to rafters. 23 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount [3.3.3] Attaching modules to the rails Lay the modules for a given panel face down on a surface that will not damage the module glass. Align the edges of the modules and snug them together (Fig. 21, page22). Trim the rails to the total width of the modules to be mounted. Place a rail adjacent to the outer mounting holes. Orient the footing bolt slot outward. Place a clip slot adjacent to the mounting holes, following the arrangement you selected earlier. Assemble the clips, mounting bolts, and flange nuts. Torque the flange nuts to 15-foot-pounds. Wire the modules as needed. For safety reasons, module wiring should not be performed on a roof. For a neat installation, fasten cable clamps to rails with self-tapping screws. [3.3.4] Installing the module-rail assembly Bring the module-rail assembly to the installation site. Keep rail slots free of debris that might cause bolts to bind in the slots. Consider the weight of a fully assembled panel. Unirac recom- mends safety lines whenever lifting one to a roof. Align the panel with the previously installed L-feet. Slide 3/8 inch L-foot mounting bolts onto the rail and align them with the L-feet mounting holes. Attach the panel to the L-feet and finger tighten the flange nuts. Rails may be attached to either of two mounting holes in the footings (Fig. 25). • Mount in the lower hole for a low, more aethetically pleasing installation. • Or mount in the upper hole to maximize a cooling airflow under the modules. This may enhance perfor- mance in hotter climates. Adjust the position of the panel as needed to fit the installa- tion area. Slide the remaining L-feet bolts onto the other rail, attach L-feet, and finger tighten with flange nuts. Align L-feet with mounting holes previously drilled into the roof. Install lag bolts into remaining L-feet as described in "Laying out and installing L-feet" above. Torque all footing flange nuts to 30 pounds. Verify that all lag bolts are securely fastened. Clip slots Mounting slots Footing bolt slot Flange - nuf Figure 25. Leg-to-rail attachment 24 SolarMount Unirac Code-Compliant Installation Manual 58* U NIRAC •%»**>•[3.4] Installing SolarMount with grounding clips and lugs Clips and lugs are sold separately. UGC-I Conforms to UL Standard 447 f- Top Tmounting . . clamps i Module i I T-bolt s-——* UGC-1 w J ~. .*.' w9-**fx«~ SolarMount® rail (any type) Figure 26. Slide UGC-1 grounding clip into top mounting slot of rail Torque modules in place on top of clip. Nibs will penetrate railanod- ization and create grounding path through rail (seeFig.3, reverse side). UGL Serrations I^k UGLJL SolarMount® rail (any type) Figure 27. Slide '/i-inch hex bolt into top mounting slot of any SolarMount® rail (standard, HD, or light). Secure nut with 7/16-inch crescent wrench withsufficient torque for lug serrations to penetrate anodized surface of rail Figure 28. Place grounding clips, uigs, and copper wire (6—10AWG). Place a loop in the wire around splices to prevent tension. Be sure wiring between rails is not taut. | _ | KEY PV module n SolarMount rail (any type) A Rail splice X Grounding lug SSi Grounding clip - Copper wire Single grounding wire for entire array w ~ — , 1 \ i™ ., * I ate wiring ine splices t i A •„« x : — —-. 25 ••"UNI RAC Unirac Code-Compliant Installation Manual SolarMount 10 year limited Product Warranty, 5 year limited Finish Warranty Unirac, Inc., warrants to the original purchaser ("Purchaser") of product(s) that it manufactures ("Product") at the original installation site that the Product shall be free from defects in material and workmanship for a period of ten (10) years, except for the anodized finish, which finish shall be free from visible peeling, or cracking or chalking under normal atmospheric conditions for a period of five (5) years, from the earlier of I) the date the installation of the Product is completed, or 2) 30 days after the purchase of the Product by the original Purchaser ("Finish Warranty"). The Finish Warranty does not apply to any foreign residue deposited on the finish. All installations in corrosive atmospheric conditions are excluded. The Finish Warranty is VOID if the practices specified by AAMA 609 & 610-02 - "Cleaning and Maintenance for Architecturally Finished Aluminum" (www.aamanet.org) are not followed by Purchaser.This Warranty does not cover damage to the Product that occurs during its shipment, storage, or installation. This Warranty shall be VOID if installation of the Product is not performed in accordance with Unirac's written installation instructions, or if the Product has been modified, repaired, or reworked in a manner not previously authorized by Unirac IN WRITING, or if the Product is installed in an environment for which it was not designed. Unirac shall not be liable for consequential, contingent or incidental damages arising out of the use of the Product by Purchaser under any circumstances. If within the specified Warranty periods the Product shall be reasonably proven to be defective, then Unirac shall repair or replace the defective Product, or any part thereof, in Unirac's sole discretion. Such repair or replacement shall completely satisfy and discharge all of Unirac's liability with respect to this limited Warranty. Under no circumstances shall Unirac be liable for special, indirect or consequential damages arising out of or related to use by Purchaser of the Product Manufacturers of related items, such as PV modules and flashings, may provide written warranties of their own. Unirac's limited Warranty covers only its Product, and not any related items. 26 «SUNIRAC 1411 Broadway Boulevard NE Albuquerque NM 87102-1545 USA WARNING trie Shock Hazard. Do not touch terminals. Jermirwis o both the line and load sides may be energized in the open position. -, Photovoltaic ~j DC Disconnect rACAUTION: POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITHDISCONNECTS LOCATED AS SHOWN SOIAB - PHOTOVOLTAIC ON ROOF PHOTOVOLTAICINVERTER WITHATTACHEDPHOTOVOLTAIC CHSCONNECT PV SYSTEM DISCONNECT fOK UTILITY OPERATION Check aLicense or Home Improvement Salesperson (HIS) Registration - Contractors Stat... Page 1 of 1 Department of Consumer Affairs <*"'* ^ Contractors State License Board Contractor's License Detail - License # 858088 eta DISCLAIMER: A license status check provides information taken from the CSLB license database. Before relying on this information, you should be aware of the following limitations. x CSLB complaint disclosure is restricted by law (B&P 7124,6). If this entity is subject to public complaint disclosure, a link for complaint disclosure will appear below. Click on the link or button to obtain complaint and/or legal action information. * Per BSP 7071 17, only construction related civil judgments reported to the CSLB are disclosed. "'•> Arbitrations are not listed unless the contractor fails to comply with the terms of the arbitration. » Due to workload, there may be relevant information that has not yet been entered onto the Board's license database. License Number: Business Information: Entity: Issue Date: Expire Date: License Status: Classifications: 858088 Extract Date: 09/16/2009 N B BAKER ELECTRIC INC DBA BAKER ELECTRIC SOLAR 1298 PACIFIC OAKS PLACE ESCONDIDO, CA 92029 Business Phone Number: (760) 745-2001 Corporation 04/28/2005 04/30/2011 This license is current and active. All information below should be reviewed. CLASS DESCRIPTION C10 ELECTRICAL. CONTRACTOR'S BOND This license filed Contractor's Bond number 8790280 in the amount of $12,500 with the bonding company FIDELITY AND DEPOSIT COMPANY OF MARYLAND. Effective Date: 01/01/2007 Contractor's Bonding History BOND OF QUALIFYING INDIVIDUAL 1. The Responsible Managing Officer (RMO) THEODORE NEVILLE BAKER certified that he/she owns 10 percent or more of the voting stock/equity of the corporation. A bond of qualifying individual is not required. Effective Date: 04/28/2005 This license has workers compensation insurance with the PENNSYLVANIAMANU.FAC.TU.B£B^A$5QC.IAT!ON INSURANCE.CJDMPANLY Policy Number: WC104004500 Effective Date: 10/01/2008 Expire Date: 10/01/2009 Workers' Compensation History Personnel listed on this license (current or disassociated) are listed on other licenses. Bonding: Workers' Compensation: Conditions of Use | Privacy Policy Copyright © 2009 State of California https://www2. cslb.ca.gov/OnlineServices/CheckLicense/LicenseDetail.asp 09/16/2009