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PERMIT Solar 990 N Saint Vrain Ave 2019-09-09
U:/Building Division/Forms-Logs/IRC Application pg 1 Revised 7/25/2019 - ks Received Date ____________ Town of Estes Park Permit Number ______________ Received By ______________ IBC Application / Building Permit Division of Building Safety 170 MacGregor Avenue P.O. Box 1200 Estes Park, CO 80517 Application Expires _____________ General Information (970) 577-3726 ▪ FAX (970) 586-0249 ▪ www.estes.org SEE REVERSE SIDE BEFORE PROCEEDING Permit Expires ______________ Job Address: ___________ Vacation Home? No Yes #Bedrooms______ Lot: Block: Subdivision: ____________________________________________ Parcel #:____________________________ Owner Name: _________ Phone: ____________________________ Address:___________________________________________________________________________________________________ (Street) (City) (State) (Zip Code) Contractor: ___ Town License #: ____ Phone:______________________ Address:___________________________________________________________________________________________________ (Street) (City) (State) (Zip Code) Email Address (REQUIRED): __________________________________________________________________________________ The Following Applies to New Work Only – Complete all that apply: New Building Alteration Addition Master Plan# Building Use(s): Owner / Residence B & B Short-term Rental – Less than 30 days. Existing use: ___________________ Proposed use: _____________________ ; # of New Dwellings: ______ ; # of New Kitchens: ______ Sewer: Estes Park Sanitation Upper Thompson Sanitation Private Septic – Requires Applicant to first go to the Health Department. Plumbing Involved: No Yes – State and Town Licenses Required Fixtures: Add Relocate Replace Demolish Water Service: Existing New - # of Meters: ________ . Meter Size: ______ inches Electric Involved No Yes – State & Town License Required. State Permit and Inspection Required. Phase ___________ Volts ____________ Service: Existing New: Overhead Underground; # of Meters: _________ ; Meter Size: _______ amps; Temp Meter: No Yes Type of Heat: Gas Furnace Electric Boiler Fuel Gas Involved: No Yes – Qualifications and System Sizing Required. Type: Natural Gas LPG # of Gas Appliances / Outlets:_______ Building Height: Existing Grade Ft. # Floors #Bdrm Basement (sf) Fin _________ Unfin _______ 1st Floor (sf) Fin __________ Unfin_________ 2nd Floor (sf) Fin __________ Unfin ________ Garage / Carport (sf) Attached _______ Detached _______ Porch w/ Roof (sf) Deck w/o Roof (sf) Job Description: Total Valuations (Labor & Materials) $ I certify this application is true and correct and agree to perform the work described according to plans/specifications submitted, reviewed and approved, and comply with local ordinances, state and federal laws as well as building codes. I certify that I have the property owner’s authority and permission to apply for this permit. Additionally, I UNDERSTAND THAT I AM RESPONSIBLE FOR ANY FEES OR EXPENSES INCURRED FOR PLAN REVIEW, PERMITS, INSPECTIONS AND OTHER FEES ASSOCIATED WITH THIS APPLICATION. Contractor Owner Owner’s Agent Tenant Signature Date ________ Print Name _________________________________________________________ Office Use Only Job Description: Dept. Approved Disapproved Fees Applicable Code(s): Registered VH Registered LVH? Public Works Water # Bedrooms/Occ. Load Floor Load: psf Elevation ft./Roof Load/ Pg Light & Power Planning Variances: Building Plan Review Setbacks Front Side Rear River County Tax Cert. of Occupancy Zoning Lot Size Hazards: Geo Wildfire Flood Fire Permit Fire Impact Building Official Date Total 990 N St Vrain Ave Estes Park, CO 80517 Keith Kreycik 4048278558 Solar Side Up 3032710656 9360 Gold Mine Rd Loveland CO 80538 jeff@solarsideup.com X 990 N St Vrain Ave 80517COEstes Park Installation of a 20 Panel 6.5kW, flush, roof mounted PV solar system 19,000 X Jeff Fleischman DWELLINGS REGULATED BY THE 2015 INTERNATIONAL BUILDING CODE (IBC) USE THIS APPLICATION FOR ALL LEGALLY EXISTING AND NEW DWELLINGS WHEN ANY OF THE FOLLOWING APPLY. NEW = SUBMITTALS FOR PERMIT APPLICATIONS RECEIVED ON OR AFTER JULY 01, 2017. CIRCLE ALL NUMBERS & LETTERS THAT APPLY. ITEM 1. DWELLINGS NOT constructed / designed in compliance with the scoping provisions of the IRC. THIS FORM IS REQUIRED FOR DWELLINGS WHICH MEET ANY OF THE FOLLOWING CONDITIONS: a.EXISTING AND NEW Dwellings in buildings with more than 2 Dwellings not meeting the definition of Townhouses. Townhouses are three or more attached dwellings in which each unit extends from the foundation to the roof and with a yard or public way on not less than two sides. b.EXISTING AND NEW Dwellings in mixed use buildings. c.EXISTING AND NEW Dwellings with more than three stories. d.EXISTING AND NEW sleeping units only (no kitchens). DWELLINGS NOT USED AS VACATION HOMES OR LARGE VACATION HOMES DO NOT NEED TO COMPLY WITH ITEMS 2 AND 3 UNLESS THEY ARE USED AS SUCH IN THE FUTURE. IF A DWELLING IS USED AS A VACATION HOME, IT MUST COMPLY WITH ITEM 2. IF A DWELLING IS USED AS A LARGE VACATION HOME IT MUST COMPLY WITH ITEM 3. ITEM 2. VACATION HOMES = Dwellings rented to a group of less than 9 occupants for 30 days or less (maximum occupant load based on 2 per bedroom + 2). THIS FORM IS REQUIRED FOR DWELLINGS WHICH MEET ANY OF THE FOLLOWING CONDITIONS: a.EXISTING Dwellings located where new Large Vacation Homes are allowed, and where a 2017 Vacation Home registration was not applied for by April 01, 2017, and exceeds 2200 square feet. b. NEW Dwellings where new Large Vacation Homes are allowed, exceeding 2200 square feet of enclosed floor area, excluding garages. Currently applies in the following zone districts: A, A-1, I-1, CO, CD, CH, O. c.NEW Dwellings where Large Vacation Homes are allowed, constructed under development plans approved prior to July 01, 2017 and revised to increase floor areas in excess of 2200 square feet or increase the number of bedrooms to more than 3 beyond the approved development plans. ITEM 3. LARGE VACATION HOMES = Dwellings rented to a group of 9 or more occupants for 30 days or less (maximum occupant load based on 2 per bedroom + 2). THIS FORM IS REQUIRED FOR DWELLINGS WHICH MEET ANY OF THE FOLLOWING CONDITIONS: a.EXISTING Dwellings where a 2017 Vacation Home registration was not applied for prior to April 01, 2017. Applies in all zone districts. b.EXISTING Dwellings increasing the maximum allowable occupant load beyond the load approved with a pre-April 01, 2017 registration application. Applies in all zone districts. c.NEW Dwellings MUST COMPLY WITH ITEM 2. NOTE: DWELLINGS WHICH MEET ANY OF THE ABOVE CONDITIONS, NOW OR IN THE FUTURE, SHALL BE REGULATED BY THE INTERNATIONAL BUILDING CODE, NOT THE INTERNATIONAL RESIDENTIAL CODE. Signature Date Print Name PV Module: 325W: Hanwha Solar 325W, Black Frame, 65.5 x 39.3 inch, 310W, 60 cell, 20 Panels Total kW Total: 6.5 kW Azimuth: 20 @ 185 Tilt Angle: 20 @ 45 Fixed System: Single Phase Electrical System Inverter: Enphase IQ 7 Installer: Solar Side Up LLC 9360 Gold Mine Rd Loveland Co 80538 303.271.0656 Electrician: Georey Vezzetti Licensed Master Electrician #28353 Golden, CO 970.390.8772 Keith Kreycik 990 N St Vrain Av Estes Park, CO 80517 4048278558 Kreycik@gmail.com Solar Side Up LLC Golden, CO (303) 271-0656 www.solarsideup.co Date: 08/22/2019 Name: Cheryl Lynn Davis Account No. 48389 9796 Application # Meter Number: Premise: Site Plan Property Line Roof Detail Solar Modules Legend# Property Line Road North < 1’ 20 20 Hanwha Solar 325W Black Frame 65.5 x 39.3 inch 325W, 60 cell Enphase IQ 7 PV Production Meter Existing Main Service PanelUtility Meter Solar Modules PV AC Disconnect House Driveway SOLAR SIDE UP 17852 W 59TH AVE GOLDEN CO 80403 E 1 E E1. 2 # 12 THHN/THWN-2 IN ENPHASE LISTED Q CABLE E2 E3 E4 4 # 10 THHN /THWN-2 AND 1 # 10 EG IN MIN 3/4” EMT E5 3 # 10 THHN/ THWN-2 AND 1 # 10 EG IN MIN 3/4” EMT E6 E7 1 #6 SOLID COPPER EG IN FREE AIR E 8 3 1/0 ALU SERVICE ENTRANCE 4 ENPHASE COMBINER AND DATA BOX E 5 A B A. ROOF TOP TRANSITIONAL J BOX B. ENPHASE Q COMBINER BOX C. 200 AMP LEVER BYPASS PV METER SOCKET D 30 AMP NON FUSED 240 VAC E F 150 AMP MAIN SERVICE PANEL G 200 AMP METER CONDUCTOR SCHEDULE EQUIPMENT SCHEDULE RESIDENCE METER ACAC AC AC AC AC AC AC AC AC AC AC AC AC AC AC ROOF TOP JUNCTION BOX AC AC MODULE SPECS E 1 30 AMP NON FUSED UTILITY DISCONNECT F E5 9,44 46.43 8.85 36.7 325 19.0 E 1 125 1 240 VAC TO XMFR E 8 HOUSE ARRAY PV DISCONNECT AND SERVICE GROUPING MAIN SERVICE PANEL 150 AMP D PAGE 1 10 MODULES 10 MODULES 25 20 HANWA Q CELL 325 WATT MODULES KEITH KREYCIK 990 N ST VRAIN AVE ESTES PARK CO 80517 6.5 KW PV SYSTEM ENPHASE IQ 7-60-2-US MICRO INVERTERS E 17 OCPD SCHEDULE CKT 1 10 X 1 . X 1.25 = 12.25 A 15 AMP OCPD CKT 2 10 X 1 . X 1.25 = 12.25 A 15 AMP OCPD MAIN FUSING 20 X X 125% = 25 A 25 AMP OCPD VOC 46.43 VOLTS DC NUMBER OF MODULES IN STRING 1 TEMP COEF VOC %/C ..34 STANDARD TEST CONDITIONS 25 DEGREE C RECORD LOW -23C +25 - -23 = 48 DEGREE C DIFFERENCE 48 X.34= 0.163% .163%X 46.43 VOC = 7.56V 46.43 + 7.56 = 53.99 MAX VOC # 10THHN/THWN-2 90D = 40 AMPS AMBIENT TEMP.91 TEMP ADDER 40D 1/2” ABOVE ROOF RACEWAY DERATE .71 40X.91X.71= 25.8 AMP AFTER CONDITIONS OF USE APPLIED RACEWAY FILL. 5 #10 THHN THWN-2 (0.1477 ). MAXIMUM ALLOWABLE IS (0.122) RACEWAY MIN IS 3/4 EMT ESTES PARK UTILITY VSE Project Number: U3349-0006-191 August 28, 2019 Solar Side Up ATTENTION: Jeff Fleischman 9360 Gold Mine Road Loveland, CO 80538 REFERENCE: Keith Kreycik Residence: 990 North Saint Vrain Avenue, Estes Park, CO 80517 Solar Array Installation To Whom It May Concern: Per your request,we have reviewed the existing structure at the above referenced site.The purpose of our review was to determine the adequacy of the existing structure to support the proposed installation of solar panels on the roof as shown on the panel layout plan.Based upon our review,we conclude that the existing structure is adequate to support the proposed solar panel installation. Design Parameters Code: International Building Code, 2015 Edition Risk Category: II Design wind speed: 175 mph (3-sec gust) per ASCE 7-10 Wind exposure category: C Ground snow load: 70 psf Existing Roof Structure Roof structure: 2x6 rafters @ 16" O.C. Roofing material: composite shingles Roof slope: 45° Connection to Roof Mounting connection: (1) 5/16" lag screw w/ min. 2.5" embedment into framing at max. 48" O.C. along rails Conclusions Based upon our review,we conclude that the existing structure is adequate to support the proposed solar panel installation. In the area of the solar array,other live loads will not be present or will be greatly reduced (2015 IBC,Section 1607.12.5). The member forces in the area of the solar panels are decreased;thus,the stresses of the structural elements are decreased. Therefore, the requirements of Section 807.4 of the 2015 IEBC are met and the structure is permitted to remain unaltered. 651 W. Galena Park Blvd., Ste. 101 / Draper, UT 84020 / T (801) 990-1775 / F (801) 990-1776 / www.vectorse.com VSE Project Number: U3349-0006-191 Keith Kreycik Residence 8/28/2019 The solar array will be flush-mounted (no more than 6"above the roof surface)and parallel to the roof surface.Thus,we conclude that any additional wind loading on the structure related to the addition of the proposed solar array is negligible. The attached calculations verify the capacity of the connections of the solar array to the existing roof against wind (uplift), the governing load case.Because the increase in lateral forces is less than 10%,this addition meets the requirements of the exception in Section 807.5 of the 2015 IEBC.Thus the existing lateral force resisting system is permitted to remain unaltered. Limitations Installation of the solar panels must be performed in accordance with manufacturer recommendations.All work performed must be in accordance with accepted industry-wide methods and applicable safety standards.The contractor shall notify Vector Structural Engineering,LLC should any damage,deterioration or discrepancies between the as-built condition of the structure and the condition described in this letter be found.Connections to existing roof framing must be staggered,except at array ends,so as not to overload any existing structural member.The use of solar panel support span tables provided by others is allowed only where the building type,site conditions,site-specific design parameters,and solar panel configuration match the description of the span tables.The design of the solar panel racking (mounts,rails,etc.),and electrical engineering is the responsibility of others.Waterproofing around the roof penetrations is the responsibility of others.Vector Structural Engineering assumes no responsibility for improper installation of the solar array. VECTOR STRUCTURAL ENGINEERING, LLC 08/28/2019 _______________________________________________________ Clifton Palmer, P.E. CO License: 51669 - Expires: 10/31/2019 Project Engineer Enclosures CMP/jls 651 W. Galena Park Blvd., Ste. 101 / Draper, UT 84020 / T (801) 990-1775 / F (801) 990-1776 / www.vectorse.com 08/28/2019 JOB NO.:U3349-0006-191 SUBJECT:WIND PRESSURE PROJECT:Keith Kreycik Residence Label:Note: Calculations per ASCE 7-10 SITE-SPECIFIC WIND PARAMETERS: Basic Wind Speed [mph]:175 Notes: Exposure Category:C Risk Category:II Importance Factor, I: ADDITIONAL INPUT & CALCULATIONS: Height of Roof, h [ft]:15 (Approximate) Comp/Cladding Location:Hip?No Enclosure Classification: Zone 1 GCp:1.0 Figure 30.4-2C (enter largest abs. value) Zone 2 GCp:1.2 (enter largest abs. value) Zone 3 GCp:1.2 (enter largest abs. value) α:9.5 Table 26.9-1 zg [ft]:900 Table 26.9-1 Kh:0.85 Table 30.3-1 Kzt:1 Equation 26.8-1 Kd:0.85 Table 26.6-1 Velocity Pressure, qh [psf]:56.6 Equation 30.3-1 GCpi:0 Table 26.11-1 OUTPUT:Equation 30.9-1 Zone 1 Pressure, p [psf]:56.6 psf (1.0 W, Interior Zones*) Zone 2 Pressure, p [psf]:67.9 psf (1.0 W, End Zones*) Zone 3 Pressure, p [psf]:67.9 psf (1.0 W, Corner Zones* within a) (a= 3 ft) Solar Panel Array Gable Roofs 27° < θ ≤ 45° Enclosed Buildings Components and Cladding Wind Calculations ()()piphGCGCqp−= VECTOR STRUCTURAL ENGINEERS JOB NO.:U3349-0006-191 SUBJECT:CONNECTION PROJECT:Keith Kreycik Residence Lag Screw Connection Capacity:Demand: Lag Screw Size [in]:5/16 Cd:1.6 NDS Table 2.3.2 Embedment1 [in]:2.5 Grade: Capacity [lbs/in]:205 NDS Table 12.2A 1 33.9 4.0 11.0 373 Number of Screws:1 2 40.7 4.0 11.0 448 Prying Coefficient:1.4 3 40.7 4.0 11.0 448 Total Capacity [lbs]:586 Demand< Capacity:CONNECTION OKAY SPF (G = 0.42) Pressure (0.6 Wind) (psf) Max Tributary Width (ft) Max. Trib. Area2 (ft2) Max. Uplift Force (lbs) Zone 1. Embedment is measured from the top of the framing member to the beginning of the tapered tip of the lag screw. Embedment in sheathing or other material is not effective. The length of the tapered tip is not part of the embedment length. 2. 'Max. Trib Area' is the product of the 'Max. Tributary Width' (along the rails) and 1/2 the panel width/height (perpendicular to the rails). VECTOR STRUCTURAL ENGINEERS JOB NO.:U3349-0006-191 SUBJECT:GRAVITY LOADS PROJECT:Keith Kreycik Residence CALCULATE ESTIMATED GRAVITY LOADS ROOF DEAD LOAD (D) Increase due to pitch Original loading Roof Pitch/12 12.0 Composite Shingles 2.8 1.41 2.0 psf 1/2" Plywood 1.4 1.41 1.0 psf Framing 3.0 psf Insulation 0.0 psf 1/2" Gypsum Clg.0.0 psf M, E & Misc 0.0 psf DL 7 psf PV Array DL 3 psf ROOF LIVE LOAD (Lr) Existing Design Roof Live Load [psf]20 ASCE 7-10, Table 4-1 Roof Live Load With PV Array [psf]0 2015 IBC, Section 1607.12.5 SNOW LOAD (S):Existing w/ Solar Panel Array Roof Slope [x:12]:12.0 Roof Slope [°]:45 Snow Ground Load, pg [psf]:70 ASCE 7-10, Section 7.2 Terrain Category:C ASCE 7-10, Table 7-2 Exposure of Roof:Fully Exposed ASCE 7-10, Table 7-2 Exposure Factor, Ce:0.9 ASCE 7-10, Table 7-2 Thermal Factor, Ct:1.1 ASCE 7-10, Table 7-3 Risk Category:II ASCE 7-10, Table 1.5-1 Importance Factor, Is:1.0 ASCE 7-10, Table 1.5-2 Flat Roof Snow Load, pf [psf]:49 ASCE 7-10, Equation 7.3-1 Minimum Roof Snow Load, pm [psf]:0 ASCE 7-10, Section 7.3.4 Unobstructed Slippery Surface?No ASCE 7-10, Section 7.4 Slope Factor Figure:Figure 7-2b ASCE 7-10, Section 7.4 Roof Slope Factor, Cs:0.77 ASCE 7-10, Figure 7-2 Sloped Roof Snow Load, ps [psf]:37 ASCE 7-10, Equation 7.4-1 Design Snow Load, S [psf]:3737 12.0 45 70 C Fully Exposed 0.9 1.1 II 1.0 49 0 No Figure 7-2b 0.77 37 JOB NO.:U3349-0006-191 SUBJECT:LOAD COMPARISON PROJECT:Keith Kreycik Residence Summary of Loads Existing With PV Array D [psf]7 10 Lr [psf]20 0 S [psf]37 37 Maximum Gravity Loads: Existing With PV Array (D + Lr) / Cd [psf]22 11 ASCE 7-10, Section 2.4.1 (D + S) / Cd [psf]39 41 ASCE 7-10, Section 2.4.1 Maximum Gravity Load [psf]:39 41 Maximum Member Forces: LOCATION GEOMETRY Span(ft)13.0 (Approximate) Solar Panel Array Start, a (ft)5.2 (Approximate) Solar Panel Array Length, b (ft)7.8 (Approximate) Truss/Rafter Spacing (ft)1.3 MEMBER FORCES Shear Capacity With PV Array Vertical Reaction, V1 (lbs)743 344 OK Vertical Reaction, V2 (lbs)743 355 OK Existing With PV Array Moment @ Center, M (lbs-ft)1091 1141 OK The member forces in the area of the solar array are decreased; thus, the stresses of the structural elements are decreased. Therefore, the requirements of Section 807.4 of the 2015 IEBC are met and the structure is permitted to remain unaltered. (Cd = Load Duration Factor = 0.9 for D, 1.15 for S, and 1.25 for Lr) Ratio House 105% 46% 48% Ratio The high-powered smart grid-ready Enphase IQ 7 Micro™ and Enphase IQ 7+ Micro™ dramatically simplify the installation process while achieving the highest system efficiency. Part of the Enphase IQ System, the IQ 7 and IQ 7+ Microinverters integrate with the Enphase IQ Envoy™, Enphase IQ Battery™, and the Enphase Enlighten™ monitoring and analysis software. IQ Series Microinverters extend the reliability standards set forth by previous generations and undergo over a million hours of power-on testing, enabling Enphase to provide an industry-leading warranty of up to 25 years. Enphase IQ 7 and IQ 7+ Microinverters To learn more about Enphase offerings, visit enphase.com Data Sheet Enphase Microinverters Region: AMERICAS Easy to Install •Lightweight and simple •Faster installation with improved, lighter two-wire cabling •Built-in rapid shutdown compliant (NEC 2014 & 2017) Productive and Reliable •Optimized for high powered 60-cell and 72-cell* modules •More than a million hours of testing •Class II double-insulated enclosure •UL listed Smart Grid Ready •Complies with advanced grid support, voltage and frequency ride-through requirements •Remotely updates to respond to changing grid requirements • Configurable for varying grid profiles •Meets CA Rule 21 (UL 1741-SA) * The IQ 7+ Micro is required to support 72-cell modules. 1. No enforced DC/AC ratio. See the compatibility calculator at https://enphase.com/en-us/support/module-compatibility. 2. Nominal voltage range can be extended beyond nominal if required by the utility. 3. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. To learn more about Enphase offerings, visit enphase.com © 2018 Enphase Energy. All rights reserved. All trademarks or brands used are the property of Enphase Energy, Inc. 2018-05-24 INPUT DATA (DC) IQ7-60-2-US / IQ7-60-B-US IQ7PLUS-72-2-US / IQ7PLUS-72-B-US Commonly used module pairings¹235 W - 350 W +235 W - 440 W + Module compatibility 60-cell PV modules only 60-cell and 72-cell PV modules Maximum input DC voltage 48 V 60 V Peak power tracking voltage 27 V - 37 V 27 V - 45 V Operating range 16 V - 48 V 16 V - 60 V Min/Max start voltage 22 V / 48 V 22 V / 60 V Max DC short circuit current (module Isc)15 A 15 A Overvoltage class DC port II II DC port backfeed current 0 A 0 A PV array configuration 1 x 1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit OUTPUT DATA (AC) IQ 7 Microinverter IQ 7+ Microinverter Peak output power 250 VA 295 VA Maximum continuous output power 240 VA 290 VA Nominal (L-L) voltage/range²240 V / 211-264 V 208 V / 183-229 V 240 V / 211-264 V 208 V / 183-229 V Maximum continuous output current 1.0 A (240 V)1.15 A (208 V)1.21 A (240 V)1.39 A (208 V) Nominal frequency 60 Hz 60 Hz Extended frequency range 47 - 68 Hz 47 - 68 Hz AC short circuit fault current over 3 cycles 5.8 Arms 5.8 Arms Maximum units per 20 A (L-L) branch circuit³16 (240 VAC)13 (208 VAC)13 (240 VAC)11 (208 VAC) Overvoltage class AC port III III AC port backfeed current 0 A 0 A Power factor setting 1.0 1.0 Power factor (adjustable)0.7 leading ... 0.7 lagging 0.7 leading ... 0.7 lagging EFFICIENCY @240 V @208 V @240 V @208 V Peak CEC efficiency 97.6 %97.6 %97.5 %97.3 % CEC weighted efficiency 97.0 %97.0 %97.0 %97.0 % MECHANICAL DATA Ambient temperature range -40ºC to +65ºC Relative humidity range 4% to 100% (condensing) Connector type (IQ7-60-2-US & IQ7PLUS-72-2-US)MC4 (or Amphenol H4 UTX with additional Q-DCC-5 adapter) Connector type (IQ7-60-B-US & IQ7PLUS-72-B-US)Friends PV2 (MC4 intermateable). Adaptors for modules with MC4 or UTX connectors: - PV2 to MC4: order ECA-S20-S22 - PV2 to UTX: order ECA-S20-S25 Dimensions (WxHxD)212 mm x 175 mm x 30.2 mm (without bracket) Weight 1.08 kg (2.38 lbs) Cooling Natural convection - No fans Approved for wet locations Yes Pollution degree PD3 Enclosure Class II double-insulated, corrosion resistant polymeric enclosure Environmental category / UV exposure rating NEMA Type 6 / outdoor FEATURES Communication Power Line Communication (PLC) Monitoring Enlighten Manager and MyEnlighten monitoring options. Both options require installation of an Enphase IQ Envoy. Disconnecting means The AC and DC connectors have been evaluated and approved by UL for use as the load-break disconnect required by NEC 690. Compliance CA Rule 21 (UL 1741-SA) UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01 This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC-2014 and NEC-2017 section 690.12 and C22.1-2015 Rule 64-218 Rapid Shutdown of PV Systems, for AC and DC conductors, when installed according manufacturer’s instructions. Enphase IQ 7 and IQ 7+ Microinverters Enphase AC Combiner Box ® Enphase AC Combiner Box SMART - Includes Envoy-S for communication and control - Flexible networking supports Wi-Fi, Ethernet, or cellular The Enphase® AC Combiner Box with Envoy-S consolidates interconnection equipment into a single enclosure and streamlines PV installations by providing a consistent, pre-wired solution for residential applications. SIMPLE - Three pre-installed 20 A / 240 VAC circuit breakers - Pre-configured revenue-grade metering available RELIABLE - Durable NRTL-certified NEMA type 3R enclosure - Five-year warranty Enphase AC Combiner Box // DATA ®To learn more about Enphase Microinverter technology, visit enphase.com MODEL NUMBERS AC Combiner Box, Metered XAM1-120 AC combiner with Enphase® Envoy-S Metered for integrated revenue grade PV production metering (ANSI C12.20 +/- 0.5%, pending) and optional consumption monitoring (+/- 2.5%). ACCESSORIES (Order Separately) Enphase® Mobile Connect CELLMODEM-01 Plug and play industrial grade cellular modem with five-year data plan for residential sys- tems up to 12 kW. (Available in the US, Puerto Rico, and the US Virgin Islands.) Consumption Monitoring CT CT-200-SPLIT Split core current transformers enable whole home consumption metering (+/- 2.5%). ELECTRICAL SPECIFICATIONS Maximum system size 11.5 kW at 240 VAC Rating Continuous duty Maximum system voltage 240 VAC Rated output current 48 A Rated input current, each input 16 A Maximum fuse/circuit breaker rating (output)60 A Solar branch circuit breakers Three 2-pole 20A/240 VAC DIN rail-mounted breakers Production Metering CT 200A solid core pre-installed on solar busbar and wired to Envoy-S MECHANICAL DATA Dimensions (WxHxD)38.0 x 38.7 x 20.3 cm (15.0” x 15.3” x 8.0”) Weight 5.1 kg (11.2 lbs) Ambient temperature range -40º C to +46º C (-40º to 115º F) Cooling Vented, natural convection Enclosure environmental rating Outdoor, NRTL-certified, NEMA type 3R, polycarbonate construction Wire size 10 AWG for branch inputs 4 AWG for combined output (3 circuits) 6 AWG for combined output (2 circuits) Altitude To 2000 meters (6,560 feet) INTERNET CONNECTION OPTIONS Integrated Wi-Fi 802.11b/g/n Ethernet 802.3, Cat5 Ethernet cable (not included) Cellular Optional, order CELLMODEM-01 COMPLIANCE Compliance, Combiner Box UL 1741 Compliance, Envoy-S UL 916 CAN/CSA C22.2 No. 61010-1 47 CFR, Part 15, Class B, ICES 003 IEC/EN 61010-1:2010, EN50065-1, EN61000-4-5, EN61000-6-1, EN61000-6-2 Metering: ANSI C12.20 accuracy class 0.5 (Pending) © 2015 Enphase Energy. All rights reserved. All trademarks or brands in this document are registered by their respective owner.MKT-00105 Rev 1.0 Overcoming AHJ Objections AC Combiner Box The AC Combiner Box is an outdoor-rated, UL Listed NEMA type 3R, polycarbonate enclosure containing an Enphase™ Envoy-S, circuit breakers, and wiring for Envoy-S connections. The AC Combiner Box combines up to three AC branch circuits of Enphase Microinverters. This document is intended for installers and electricians. Covered in this document are misinterpreted code compliance object ions some electrical inspectors or authorities having jurisdiction (AHJs) have proposed when evaluating the AC Combiner installation . The intent is to share some of these objections reported to us by installers, and to provide some clarity and Enphase’s view rega rding certain types of objections; however, all installers and electricians must comply with any and all applicable laws, regulatio ns, codes, permits and AHJ objections delivered to an installer or electrician and remain liable for any deficiencies in thei r work. Topic 1: UL Listing of the Revenue Grade Meter - AHJ Objection: Many socket-mounted revenue grade meters (glass dome style meters) are not UL Listed and AHJs may push back on non-UL listed meter solutions. - AC Combiner Benefit: The Envoy-S Metered as well as the AC Combiner Box are UL listed products. AC Combiner UL Listing on UL Website. An AHJ will accept this meter, if they only allow UL listed meters to be installed in the application. Topic 2: Breakers - AHJ Objection: An AC Combiner is installed with two branch circuits connected to two of the three combiner breakers. An AHJ requires that the unused breaker must to be removed. - Clarification: Breakers do NOT all have to be used and may be left in the combiner unused, however extra breakers may be removed if desired, and a blanking plate is provided to cover the dead front hole. Follow these instructions when removing a breaker. - AHJ Objection: An AC Combiner is installed with varying number of microinverters on each branch circuit. An AHJ requires that the combiner breaker must be downsized to the next smallest rated breaker, if total number of microinverters on a branch circuit is not maximized and total rated continuous current on that circuit allows it. Example, a branch circuit has 11 M215 microinverters (where 17 is the maximum allowed number of M215 microinverters on a 20 A circuit), resulting in 12.31 A of design current (calculations: 11 x (215 W / 240 V) = 9.85 A, so 9.85 A * 1.25 = 12.31 A). This would mean a 15 A breaker would be sufficient to protect this circuit, and the AHJ requires the breaker be downsized. - Clarification: The AC Combiner is a UL listed product pre-installed with 20 A combiner breakers designed for use with Enphase Microinverters and allows connecting branch circuits with microinverter quantities of 1 to the maximum allowed depending on microinverter model on a 20 A circuit breaker. - The breaker is NOT required to be downsized simply because there are less microinverters on a given branch circuit. Leaving a breaker unused is also allowed. - AHJ Objection: The installer is interconnecting the combined output of the AC Combiner to a breaker in an existing main service panel. The interconnection breaker is subject to NEC 2011 705.12 (D) (2), Point of Connection and Bus or Conductor Rating, limited to 120 percent of the rating of the busbar or conductor, based on the sum of the ampere ratings of overcurrent devices in circuits supplying power. This generally introduces a limitation of the maximum size the interconnection breaker can be, and per the NEC 2011 requirements the sum of the ampere ratings of the overcurrent devices including those in the AC combiner defines that breaker size. Therefore, an AHJ may require the combiner breakers be downsized, if number of microinverters on that branch circuit allow, such that the sum of the breakers is equal to or lower than the interconnection breaker in the main service panel. - Clarification: While down-sizing the combiner breakers is a technical solution to meet the NEC 2011 requirement, the NEC 2014 has changed these requirements 705.12 (D) (1) (b) and 705.12 (D) (3) (a) to 125 percent of the inverter(s) output circuit current. - If the AHJ where NEC 2011 is the prevalent code would accept the newer NEC 2014 code changes, this may be one approach to avoid downsizing the breakers. - If the AHJ insists on the NEC 2011 interpretation, down-sizing the combiner breakers in the AC Combiner IS allowed. The 20 A breakers that ship pre-installed with the AC Combiner may be replaced with smaller rated breakers. See Tech Brief “10A and 15A Circuit Breakers for the Enphase AC Combiner.” - Make sure to follow replacement instructions, properly seat buss bars and conductors in breaker terminals and tighten to the proper torque requirements. - Under NEC 2014, there is no need to downsize breakers as the calculations are based on the inverter(s) output circuit current. - AHJ Objection: The installer is interconnecting the combined output of the AC Combiner to a breaker in an existing main service panel. The interconnection breaker is subject to NEC 2011 705.12 (D) (2), Point of Connection and Bus or Conductor Rating, limited to 120 percent of the rating of the busbar or conductor, based on the sum of the ampere ratings of overcurrent devices in circuits supplying power. This generally introduces a limitation of the maximum size the interconnection breaker can be, and per the NEC 2011 req uirements the sum of the ampere ratings of the overcurrent devices including those in the AC combiner defines that breaker size. Therefore, an AHJ may require the combiner breakers be downsized, if number of microinverters on that branch circuit allow, suc h that the sum of the breakers is equal to or lower than the interconnection breaker in the main service panel. - Clarification: While down-sizing the combiner breakers is a technical solution to meet the NEC 2011 requirement, the NEC 2014 has changed these requirements 705.12 (D) (1) (b) and 705.12 (D) (3) (a) to 125 percent of the inverter(s) output circuit current. - If the AHJ where NEC 2011 is the prevalent code would accept the newer NEC 2014 code changes, this may be one approach to avoid downsizing the breakers. - If the AHJ insists on the NEC 2011 interpretation, down-sizing the combiner breakers in the AC Combiner IS allowed. - The 20 A breakers that ship pre-installed with the AC Combiner may be replaced with smaller rated breakers. See Tech Brief “10A and 15A Circuit Breakers for the Enphase AC Combiner.” Make sure to follow replacement instructions, properly seat buss bars and conductors in breaker terminals and tighten to the proper torque requirements. - Under NEC 2014, there is no need to downsize breakers as the calculations are based on the inverter(s) output circuit current. Topic 3: Integrated Accessories Outlet - AHJ Objection: The AC Combiner comes with an integrated outlet for Enphase Accessories only. When the AC Combiner is installed outdoors, an AHJ may require that outlet to be a GFCI type outlet. - Clarification: The integrated 120 V accessories outlet in the AC Combiner is part of the AC Combiner Box that is UL Listed for the application. - An AHJ may NOT require this to be a GFCI type outlet, as it is part of the UL listing. Additionally, the NEC 210.8 defines the GFCI requirements and it applies only to 125-volt, single-phase, 15- and 20-ampere receptacles. - The Enphase Accessory outlet is protected by a 5-ampere breaker and therefore is not subject to a GFCI NEC requirement. Topic 4: Conductor Sizing - AHJ Objection: The AC Combiner has a label that states “4 AWG for combined output,” and the AHJ may require that 4 AWG conductors be used as a result. - Clarification: The combined output terminal can accept 12 to 4 AWG copper conductors, as indicated by the AC Combiner Datasheet. - The conductor size shall be determined according to NEC requirements based on the interconnection over -current protection, total inverter ampacity and voltage rise considerations, and does NOT have to be 4 AWG conductor. References - AC Combiner Datasheet - AC Combiner Quick Install Guide - AC Combiner Installation Manual - AC Combiner UL Listing on UL Website - 10A and 15A Circuit Breakers for the Enphase AC Combiner Technical Brief TECHNICAL BRIEF © 2015 Enphase Energy Inc. All rights reserved. January 2015 1 NEC 2014 — Enphase System Code Compliance Overview This technical brief discusses new NEC 2014 requirements that apply to Enphase Microinverter Systems. It is useful for installers, electricians, and electrical inspectors or authorities having jurisdiction (AHJs) in understanding how code-compliance is handled where NEC 2014 is adopted. Main topics discussed in this document are: • NEC 2014 Section 690.12 Rapid Shutdown of PV Systems on Buildings • NEC 2014 Section 705.12 Point of Connection • NEC 2014 Section 690.11 DC Arc-Fault Circuit Protection NEC 2014 Section 690.12 Rapid Shutdown of PV Systems on Buildings Enphase Microinverter Systems fully meet the rapid shutdown requirement without the need to install additional electrical equipment. Properly labeling the PV system power source and rapid shutdown ability is required per NEC Section 690.56 (B) and (C). Solar electric PV systems with Enphase Microinverters have one utility-interactive inverter directly underneath each solar module, converting low voltage DC to utility grid-compliant AC. When the utility grid is available and the sun is shining, each microinverter verifies that the utility grid is operating within the IEEE 1547 requirements. Only then does it export AC power into the electric service for use by loads onsite or export power to the utility grid for others to use. When the utility grid has a failure, or the PV system AC circuits are disconnected from the utility service via an AC breaker, AC disconnect, or removal of the solar or main utility service meter, the microinverters stop producing AC power in fewer than six AC cycles. Enphase Microinverters are not capable of operating as an AC voltage source. This means that without an AC utility source, Enphase Microinverters are not able to energize connected wiring and no AC voltage or current can be injected into the inverter output circuits or the grid. When the AC utility source is removed from the inverter output circuits via any means, such as an AC breaker, AC disconnect or removal of the solar or main utility service meter, this equipment performs the rapid shutdown function per 690.12. With an Enphase Microinverter System this shutdown occurs well within the 690.12 required 10 seconds, and there are no other conductors energized more than 1.5 m (5 ft) in length inside a building or more than 3 m (10 ft) from a PV array. Code Reference 690.12 Rapid Shutdown of PV Systems on Buildings. PV system circuits installed on or in buildings shall include a rapid shutdown function that controls specific conductors in accordance with 690.12(1) through (5) as follows. (1) Requirements for controlled conductors shall apply only to PV system conductors of more than 1.5 m (5 ft) in length inside a building, or more than 3 m (10 ft) from a PV array. (2) Controlled conductors shall be limited to not more than 30 volts and 240 volt-amperes within 10 seconds of rapid shutdown initiation. (3) Voltage and power shall be measured between any two conductors and between any conductor and ground. (4) The rapid shutdown initiation methods shall be labeled in accordance with 690.56(B). (5) Equipment that performs the rapid shutdown shall be listed and identified. NEC 2014 — Enphase System Code Compliance © 2015 Enphase Energy Inc. All rights reserved. January 2015 2 NEC 2014 Section 705.12 Point of Connection (AC Arc-Fault Protection) In this section we explain how to comply with NEC 2014 Section 705.12 Point of Connection when installing Enphase Energy Systems with: • Supply Side Connection • Load-Side Connection to Single-Phase 120/240 Volt Services • Three-Phase 208/120 Volt Services Supply Side Connection Solution: No AC AFCI (Arc-Fault Circuit Interrupter) protection is required. Code Reference 705.12 Point of Connection The output of an interconnected electric power source shall be connected as specified in 705.12(A), (B), (C) or (D). Since the operator “OR” is used to define connection types, the code seems to intend that if one criteria is met, for example (A), the other criteria are not applicable. Code Reference 705.12(A) Supply Side. An electric power production source shall be permitted to be connected to the supply side of the service disconnecting means as permitted in 230.82(6). The sum of the ratings of all overcurrent devices connected to power production sources shall not exceed the rating of the service. 705.12(B) Integrated Electrical Systems. … 705.12(C) Greater Than 100 kW. … 705.12(D) Utility-Interactive Inverters. … 230.82(6) lists solar photovoltaic systems as eligible for equipment permitted to be connected to the supply side of the service disconnecting means. Since Enphase Energy Systems are solar photovoltaic systems, a supply side connection of an Enphase System may be accepted by AHJs to fully meet Code section 705.12. Since 705.12(A) requirements are met, it seems logical that the 705.12(D) requirements for connections to the load-side of the service disconnect means are not applicable. Load-Side Connection to Single-Phase 120/240 Volt Services Solution: Refer to section 90.4 and the previous code edition, NEC 2011. No listed backfeed capable AC AFCI solutions or acceptable equipment to enclose the cable harness exist. Until such products are generally available from manufacturers, when making load side connections, complying with NEC 2014 Section 705.12 (D) (6) is achieved by discretionary guidance per NEC 2014 Section 90.4. This means to refer to the previous code edition NEC 2011 Section 705.12, where AC Arc-Fault Circuit Protection is not a requirement for utility-interactive inverters. NEC 2014 Code Reference 705.12(D) Utility Interactive Inverters. The output of a utility-interactive inverter shall be permitted to be connected to the load side of the service disconnecting means of the other source(s) at any distribution equipment on the premises. Where distribution equipment, including switchgear, switchboards, or panelboards, is fed simultaneously by a primary source(s) of electricity and one or more utility-interactive inverters, and where this distribution equipment is NEC 2014 — Enphase System Code Compliance © 2015 Enphase Energy Inc. All rights reserved. January 2015 3 capable of supplying multiple branch circuits or feeders, or both, the interconnecting provisions for the utility-interactive inverter(s) shall comply with 705.12(D)(1) through (D)(6). 705.12 (D) (4) Suitable for Backfeed. Circuit breakers, if backfed, shall be suitable for such operation. 705.12(D)(6) Wire Harness and Exposed Cable Arc-Fault Protection. A utility-interactive inverter(s) that has a wire harness or cable output circuit rated 240 V, 30 amperes, or less, that is not installed within an enclosed raceway, shall be provided with listed ac AFCI protection. This NEC 2014 code section allows connection of an electric power source to the load side of service disconnect means and requires that the “interconnecting provisions for the utility-interactive inverter(s) shall comply with 705.12(D)(1) through (D)(6)”. Since the Enphase system contains one or more microinverters, which are the utility-interactive inverter(s), this section applies when connecting a system to the load side of a service disconnecting means. 705.12(D)(6) specifically requires that exposed AC cable systems, such as the Enphase Engage Cable, which is not feasibly run in enclosed raceway, to be protected by listed AC Arc-Fault Circuit Interrupter (AC AFCI) functionality. Given that utility-interactive inverters cannot operate without a utility service source, the location of the AC AFCI protecting the cable must logically be applied at the utility source side of the circuit. AC AFCI circuit breakers are the commonly available devices for single-phase branch circuits. No suitable for backfeed AC AFCI circuit breakers exist. Since Enphase Microinverters are utility-interactive inverters that backfeed into the electrical service through the overcurrent protection device, any AC AFCI circuit breakers must be specifically backfeed capable, per 705.12(D)(4). If terminals of circuit breaker AFCIs are marked “Line” and “Load,” then the AFCI product is not backfeed capable. No UL standard for backfeed testing exists for AC AFCI circuit breakers. Furthermore, 705.12(D)(6) requires that ac AFCI protection must be ”listed.” For a product or product category to become “listed,” a standard safety test procedure, such as a UL standard, must exist. The testing standard for AFCI circuit breakers is UL1699, which currently does not have provisions for testing this product category for backfeed applications. It is clear, that the code requirement is ahead of new product availability. Summary Until suitable for backfeed and listed AC AFCI circuit breakers become generally available, an AHJ is permitted to refer to 90.4, i.e., the previous code edition, NEC 2011. Code Reference 90.4 Enforcement. This Code may require new products, constructions, or materials that may not yet be available at the time the Code is adopted. In such event, the authority having jurisdiction may permit the use of the products, constructions, or materials that comply with the most recent previous edition of this Code adopted by the jurisdiction. NEC 2014 — Enphase System Code Compliance © 2015 Enphase Energy Inc. All rights reserved. January 2015 4 Three-Phase 208/120 Volt Services Solution: The compliance solution for systems interconnected to three-phase systems is to defer to NEC 90.4. There are no three-phase AC AFCI detection devices in existence. Until backfeed capable three- phase AC AFCI circuit breakers become generally available, an AHJ is permitted to refer to 90.4, i.e., the previous code edition, NEC 2011. Additionally, the NEC 210.12 code intention for any AC AFCI protection is for single-phase applications in dwellings or dormitory units and not meant for three-phase applications, example: Code Reference 210.12 Arc-Fault Circuit-Interrupter Protection. … 210.12(A) Dwelling Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits….. 210.12(B) Branch Circuit Extensions or Modifications — Dwelling Units. … 210.12(C) Dormitory Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits Although Chapter 7 applies to “Special Conditions,” the industry must be able to supply generally available equipment that is safe to use and meets the requirements for these special applications. For 705.12(D) (6) this is not the case for three-phase applications as there are no listed three-phase AC AFCI detection devices available. NEC 2014 Section 690.11 DC Arc-Fault Circuit Protection This requirement is for direct current (DC) Arc-Fault Circuit protection and only applies to systems with DC voltages above 80 VDC. Enphase Microinverter systems are exempted from this requirement as they always operate well below 80 VDC. The requirement is basically unchanged from the NEC 2011, and it is unnecessary to add DC AFCI to an Enphase Microinverter System installation. Code Reference 690.11 Arc-Fault Circuit Protection (Direct Current). Photovoltaic systems with dc source circuits, dc output circuits, or both, operating at a PV system maximum system voltage of 80 volts or greater, shall be protected by a listed (dc) arc-fault circuit interrupter, PV type, or other system components listed to provide equivalent protection. ® www.roof-tech.us info@roof-tech.us RT-MINI Self-flashing base for asphalt & metal roof-top PV mounting systems Dual bolt design: M8 or 5/16” for L-Foot & 1/4” for EMC 1/4” Hex Bolt upper channel Easy tapping screw guide M8 or 5/16” Hex Bolt bottom channel Flat lip for PV Cable clips RT-MINI is suitable for mounting any rail system with a conventional L-Foot. Call Now for more details 619-551-7029 ICC ESR 3575 RT-MINI Flexible Flashing certified by the International Code Council (ICC) Components RT2-00-MINIBK MINI base : 20 ea. Screw : 40 ea. Extra RT-Butyl : 10 ea. RT-Butyl is Roof Tech s flexible flashing used in 550,000 residential PV systems for the last 20 years. It is the first PV mounting system with Flexible Flashing certified by the ICC. ICC ESR-3575 ASTM2140 testing UV testing (7500 hrs.) www.roof-tech.us info@roof-tech.us 333 H Street, Suite 5000, Chula Vista, CA 91910 619.551.7029 Roof Tech Inc. Flexible Flashing 100% Waterproof Metal Flashing Retrofit Shedding water? ’ P.E. Stamped Letters available at www.roof-tech.us/support PAT : PENDING Dimensions in (mm) Op"onal items RT2-04-SD5-60 Screws : 100 ea. RT2-04-BN30SL 5/16-18 Hex flange nut : 100 ea. 1-1/4 Hex bolt : 100 ea. Ra#er installa"on Deck installa"on (D Y H (D Y H Engineered to ASTM D 1761 (Standard Test Methods for Mechanical Fasteners in Wood) 5224 South 39th Street, Phoenix, Arizona 85040 tel: (602) 438-2500 fax: (602) 438-2505 www.smleng.com Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers Roof Tech, Inc. June 20, 2018 333 H Street, Suite 5000 Chula Vista, CA 91910 page 1 of 28 Attn: Mr. Takashi Chiyoda, General Manager Subject: Roof Tech RT-[E] Mount Mini – Structural Analysis SML Job No.: 471-13 Dear Mr. Chiyoda: We have analyzed the Roof Tech RT-[E] Mount Mini photovoltaic (PV) panel roof mount system and determined that, for the configurations and criteria described below, it is in compliance with the applicable sections of the following Reference Documents: Codes: ASCE/SEI 7-10 Min. Design Loads for Buildings & Other Structures International Building Code 2015 Edition International Residential Building Code 2015 Edition Other: Aluminum Design Manual, 2015 Edition The Roof Tech RT-[E] Mount Mini photovoltaic (PV) panel roof mount system is comprised of a 6000 series aluminum [E] Mount Mini base. An appropriately load rated ‘L-Foot’, by others, may be attached to the [E] Mount Mini base with a stainless steel SS304 8.0 mm bolt, and flange nut. An appropriately load rated rail, by others, may be attached to the ‘L-Foot’ per the rail manufacturer’s installation instructions. The installation of the RT-[E] Mount Mini must be with the long direction parallel to the roof framing and in accordance with Roof Tech’s Installation Manual. The system is attached to the roof wood substrate with SS304 5.0 mm x 60 mm wood screws. Three wood substrates were tested with the fasteners also passing through two layers of composite asphalt roof shingles and 2 layers of building paper. The first tested wood substrate consisted of 7/16” thick sheathing over a 2x4 DF #2 rafter (2x truss top chord OK by inspection), the second tested wood substrate consisted of 7/16” thick OSB only, and the third tested wood substrate consisted of 15/32” thick plywood only. See Exhibit ‘A’ – attached. Two wood screws are required at the rafter installations and five wood screws are required at the OSB and plywood only installations. Roof Tech, Inc. June 20, 2018 Mr. Takashi Chiyoda page 2 of 28 Roof Tech RT-[E] Mount Mini Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers - 2 - The testing data provided by Institute of Building Technology (IBT) report no.: 2426-18005 project no.: 29702 dated March 21, 2018, shows that the critical failure occurs in one of three ways; pullout of the wood screws from the 2x rafter, yielding of the attached components in shear, or pullout of the nails attaching the OSB/Plywood to the 2x rafter. Maximum allowable values for these failure conditions were derived using a safety factor of 2.0 on the ultimate loads resulting in aluminum failure and a safety factor of 3.0 on the loads resulting in wood failure. The testing was performed in general accordance with IAPMO Uniform Evaluation Services Evaluation Criteria for Joist Hangers and Miscellaneous Connectors, EC002 adopted June 2007, revised January 2016 and ASTM D1761-2012, Standard Test Methods for Mechanical Fasteners in Wood. Compression load capacity on the OSB and plywood installations were determined by testing conducted at Western Technologies Inc. (WT). The data is represented in job no. 2163XD260 event no. G260-3 (OSB) dated January 3, 2014 and job no. 2163XD260 event no. G260-6 (Plywood) dated May 30, 2014. The safety factor for downward compression on the sheathing is 2.0. The results of the above testing are presented below: The maximum allowable uplift and shear force for 7/16” thick sheathing over a 2x4 DF #2 rafter is 447 lb and 355 lb respectively. The maximum allowable uplift, down force, and shear force for 7/16” thick OSB only is 153 lb, 258 lb, and 192 lb respectively. The maximum allowable uplift, down force, and shear force for 15/32” thick plywood only is 180 lb, 556 lb, and 277 lb respectively. The attached tables below show the maximum spacing of the RT [E] Mount Mini for the combined loading criteria of wind speed, roof slope, and snow loads which produce reaction loads less than the allowable loads listed above. The effect of seismic loads (for all design categories A-F) have been determined to be less than the effect due to wind loads in all load conditions and combinations. The assumed topography is flat with a Kzt = 1.0. Therefore, the maximum allowable spacing for common load cases due to dead, wind and snow loads are the controlling load cases. ‘Rail Option’: The maximum height for the ‘Rail Option’ is measured from the bottom of the [E] Mount Mini base to the top of the rail. See Exhibit ‘A’ – attached, for the allowable ‘Rail Option’ PV panel layouts and ‘L-Foot’ and rail configuration. The maximum rail cantilever shall be limited to the smaller of 40% of the maximum rail span in the ‘Rail Option’ tables below and the rail manufacturer’s specified maximum cantilever. It is the responsibility of the contractor to verify that the ‘L-Foot’ and rails that are used have a span rating greater than that shown in the ‘Rail Option’ tables below. Provide thermal expansion splices along the rail at intervals not to exceed 14 feet and refer to the rail manufacturer’s thermal expansion splice detailing for proper installation. DRAWN BY: DESIGNED BY: DATE: JOB NO: 5224 S. 39th Street Phoenix, Arizona 85040 (602) 438-2500 fax. (602) 438-2505 Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers J.S. D.H. 7-3-18 471-13 ROOF TECH RT-[E] MOUNT MINI + RAIL STRUCTURAL ANALYSIS ROOF TECH, INC. 333 H STREET, SUITE 5000 CHULA VISTA, CA 91910 EXHIBIT A 2 OF 4 J.S. D.H. DRAWN BY: DESIGNED BY: 7-3-18 471-13 DATE: JOB NO: 5224 S. 39th Street Phoenix, Arizona 85040 (602) 438-2500 fax. (602) 438-2505 Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers ROOF TECH RT-[E] MOUNT MINI + RAIL STRUCTURAL ANALYSIS ROOF TECH, INC. 333 H STREET, SUITE 5000 CHULA VISTA, CA 91910 EXHIBIT A 3 OF 4 J.S. D.H. DRAWN BY: DESIGNED BY: 7-3-18 471-13 DATE: JOB NO: 5224 S. 39th Street Phoenix, Arizona 85040 (602) 438-2500 fax. (602) 438-2505 Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers ROOF TECH RT-[E] MOUNT MINI + RAIL STRUCTURAL ANALYSIS ROOF TECH, INC. 333 H STREET, SUITE 5000 CHULA VISTA, CA 91910 EXHIBIT A 4 OF 4