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Home My WebLink AboutPLANS, Solar PV PlansGodwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com R-1 # Modules (18) Pitch: 18° Azimuth: 181°5'-6" 3'-3" R-1 FRONT OF HOUSE 7.22.2020 GM . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 1st Responder Access minimum of 36" unobstructed as per Section R324 of the 2015 IRC Customer Info: S-1 Date: Drawn by: Checked by: Rev #: 00 Rev Date: Page: Represents all Fire Clearance including Alternative methods Utility Meter 2017 FL Residential Code & FBC, 6th Edition (2015 International Residential Code - 2nd Printing modified by the FL Building Standards and Codes 2017 Uniform Code Supplement), 2015 International Energy Conservation Code, County of Saint Lucie Code, 2014 National Electric Code. Legend First responder access Sheet IndexS-1 Cover Sheet / Site Plan S-2 Detail E-1 One - Line S-1A Mounting Plan Utility Meter PV Disconnect Vent Pipe Chimney Satellite FRONT OF HOUSE N -COGEN Disconnect Located adjacent to Utility meter Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7 (18) Hanwha Q.Peak 315W Q-Rail Light 5,670W Comp Shingles 7 to 27 Deg Use Roof Tech Mini's Layout Subject to Change Based on Site Conditions Meets All Editions of Florida Fire Prevention Code 6th Edition Compass for Aerial General Notes: -Enphase IQ7 Micro Inverters are located on roof behind each module. -First responder access maintained and from adjacent roof. -Wire run from array to connection is 40 feet. System meets the requirements of NFPA 1 2015 Edition, Chapter 11.12 Install will be done to Manufacturer Spec Marcel Residence 1003 Enders Rd. Fort Pierce, FL 34982 2' Access Pathway Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 7.22.2020 GM . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141Designed as per ASCE7-10 Modules mounted flush to roof no higher than 6" above surface. Customer Info: S-2 Roof Section Pitch Roof Rafter and Spacing Overhang Notes: R1 4/12 2"x4" @ 24 O.C.20" Date: Drawn by: Checked by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7 (18) Hanwha Q.Peak 315W Q-Rail Light 5,670W Comp Shingles 7 to 27 Deg Use Roof Tech Mini's Truss General Notes: - Roof Tech Mini's are secured to rafters @ 48" O.C. using (2) M5 x 60mm stainless steel Lag bolts. - Subject roof has One layer. - All penetrations are sealed. Install will be done to Manufacturer Spec Marcel Residence 1003 Enders Rd. Fort Pierce, FL 34982 Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 7.22.2020 GM . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 61 76.3 80 <4 3 18 22.5 30 <4 10 #12 AWG THWN for Home runs under 100' #10 AWG THWN for Home runs over 100' (1) Line 1 (1) Line 2 Per Circuit #8 AWG THWN (1) EGC Inside @ least 3/4" Conduit (tbd on site) Photovoltaics: (18) Hanwha Q.Peak 315W Inverters: (18) Enphase IQ7 Micro Inverters Circuits: (2) circuits of (9) Modules Maximum Inverters Per 20A Circuit (16)Roof Enphase Combiner Box Enphase Trunk Cable Meter Line Side Tap 60A Service Rated Fused Disconnect Neutral to Ground Bond AC Disconnect (1) - 15A Breaker Per Circuit 30A Fuse #10 AWG THWN (1) Line 1 (1) Line 2 (1) Neutral #8 (1) EGC in @ least 3/4" Conduit Typically #6 AWG THWN (1) Line 1 (1) Line 2 (1) Neutral in @ least 3/4" Conduit Typically Disconnect Customer Info: (1)#8 AWG EGC & GEC E-1 Date: Drawn by: Checked by: Rev #: 00 Rev Date: Page: In Case of Emergency Call Sun Tec Solar Energy at 727-571-4141 AC Max Output Current AC Max Output Current * 1.25% Overcurrent Protection (A) No. of Current Carrying Cond Conductor Gauge (AWG) 9 11.3 15 <4 20 Enphase Output Ckt Per String To Overcurrent Protection Device Enphase Total Output Ckt AC Max Output Current AC Max Output Current * 1.25% Overcurrent Protection (A) No. of Current Carrying Cond Conductor Gauge (AWG) Refer to NEC 312.8 for Conditions on taps in switch and over current devices Enclosures. If the conditions are not met a tap box will need to be installed. GEC NOTES Provide a grounding electrode system for an ungrounded system per 690.47(C)(3). - GEC must be installed per 250.64 - GEC must be continuous un-spliced or irreversibly spliced from inverter to existing service ground system or continuous from the arrays to the existing service ground system. - If GEC is not continuous from the array to the existing service ground an additional ground system must be provided from the arrays to a grounding electrode per 690.47(D) - GEC must be min #8 AWG and installed in conduit Figure 690.56(C)(1)(a) Label for PV Systems that Shut down the array and the conductors leaving the array Main Distribution Panel 200A Main System meets the requirements of NFPA 1 2015 Edition, Chapter 11.12 NEC LABEL NOTES: 1. THE WARNING SIGN(S) OR LABEL(S) SHALL COMPLY WITH NEC 110.21(B) 2. LABELS SHALL BE SUITABLE FOR THE ENVIRONMENT WHERE THEY ARE INSTALLED. 3. LABELS TO BE A MIN LETTER HEIGHT OF 3/8" AND PERMANENTLY AFFIXED. 4. LABELS SHALL ALSO COMPLY WITH THE SPECIFIC REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION. PHOTOVOLTAIC SYSTEM AC DISCONNECT NOMINAL OPERATING VOLTAGE: VAC RATED AC OUTPUT CURRENT: Amps 240 18 WARNING ELECTRIC SHOCK HAZARD DO NOT TOUCH TERMINALS. TERMINALS ON BOTH THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION WARNING: DUAL POWER SUPPLY SOURCES: UTILITY GRID AND PV SOLAR ELECTRIC SYSTEM WARNING: INVERTER OUTPUT CONNECTION: DO NOT RELOCATE THIS OVERCURRENT DEVICE PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN WARNING: DEDICATED SOLAR PANEL DO NOT CONNECT ANY OTHER LOADS WARNING:PHOTOVOLTAIC POWER SOURCE Manual Lockable Disconnect Install will be done to Manufacturer Spec Note: -All wiring to meet the 2014 NEC and Florida electric codes. 60A Disconnect -Type of conduit to be determined on site by contractor. Including the label below NEMA 3R Junction BoxBlack - L1 Red - L2 Green - Ground Marcel Residence 1003 Enders Rd. Fort Pierce, FL 34982 Located Adjacent to Utility Meter In Compliance with NEC 705(D)(2) Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 14' 7' Splice Bar 4 Mounts Mids 36 30 2 4' Ends/End Caps 12 Ground Lugs 1 3 17'4 Combiner 17'-6" 47'-0" 35'-0" L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L 5'-6" 3'-3" 7.22.2020 GM . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 Customer Info: S-1A Date: Drawn by: Checked by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7 (18) Hanwha Q.Peak 315W Q-Rail Light 5,670W Comp Shingles 7 to 27 Deg Use Roof Tech Mini's Max cantilever is 16" as per manufacturer spec. Max Cantilever = Max Span * (13)=48*(13)=16" Install will be done to Manufacturer Spec Marcel Residence 1003 Enders Rd. Fort Pierce, FL 34982 Plans satisfy zones FBC-1510.7.1 GODWIN ENGINEERING AND DESIGN, LLC 8378 Foxtail Loop, Pensacola, FL 32526 | (850)712-4219 | chad@godwineng.com July 23, 2020 To: St. Lucie County Building Division 2300 Virginia Avenue Ft. Pierce, FL 34982 Re: Marcel – Residential PV Roof Mount Installation 1003 Enders Rd. Fort Pierce, FL 34982 Plan Reviewer, This letter is regarding the installation of a new roof mounted Solar PV System on the existing residential structure at the address above. I have reviewed the attachment plan and have determined that the roof mounted PV system is in compliance with the applicable sections of the following Codes as amended and adopted by the jurisdiction: 2017 Florida Building Code 6th Edition, FBC ASCE 7 Min. Design Loads for Buildings & Other Structures Per 2017 FBC, the Roof Mounted PV system will be subject to the following design criteria: Design Wind Speed(Vult) - 160mph 3sec gust, Exposure Category – B The PV System consist of the modules, railing, and connection hardware. The system will add a dead load of approximately 3 psf to the roof. The existing roof covering is Asphalt Shingle with min. ½” plywood decking and 2” x 4” roof trusses 24” O.C. The roofing, decking, and roof trusses are in good condition. The existing structure will be adequate for supporting the additional PV dead load and wind loads. The securement method of the PV system is to be flush mounted to the asphalt shingle roof with the Quickmount Q-rail Lite railing and flashings/attachments. The flashings/attachments are the RT mini mounts and can be attached up to 48” apart. The mounts should be staggered, where possible, to allow distribution of the design loads evenly to the structure. The mounts shall be installed with 2 x M5 x 60mm stainless lag screws directly to the roof truss. Please see attached documents and contact me should you have any questions. Sincerely, D. Chad Godwin, PE 81360 Exp. 02/28/2021 BUILDING DESIGN PROPERTIES SYMBOL VALUE UNIT BASIC WIND SPEED V mph Figure 26.5‐1C, page 249a ROOF PITCH Ѳ degrees MEAN ROOF HEIGHT h 30 ft ROOF SETBACK a 4 ft ADJUSTMENT FACTOR FOR BUILDING HEIGHT AND EXPOSURE λ 1.00 Figure 30.5‐1, pg 347 TOPIGRAPHICAL FACTOR Kzt 1 Figure 26.8‐1, pg 252 EXPOSURE EFFECTIVE WIND AREA sf ZONE 1 ZONE 2 ZONE 3 VARIABLE DESCRIPTION SYMBOL VALUE VALUE VALUE UNIT REFERENCE: ASCE 7‐10 NET DESIGN WIND PRESSURE (UPLIFT) Pnet30 ‐37 ‐64.5 ‐95.4 psf Figure 30.5‐1, pg 346 NET DESIGN WIND PRESSURE (DOWN)Pnet30 20.3 20.3 20.3 psf Figure 30.5‐1, pg 346 NET DESIGN WIND PRESSURE (UP)Pnet up ‐37.00 ‐64.50 ‐95.40 psf Calculation: Pnet up = λ x Kzt x Pnet30 NET DESIGN WIND PRESSURE (DOWN)Pnet down 20.30 20.30 20.30 psf Calculation: Pnet down = λ x Kzt x Pnet30 DESCRIPTION SYMBOL VALUE VALUE VALUE UNIT DEAD LOAD D 33 3psf SNOW LOAD S 00 0psf DESIGN WIND LOAD W ‐37.00 ‐64.50 ‐95.40 psf ASD DESIGN LOAD (UPLIFT )Pdesign ‐26.34 ‐47.64 ‐71.57 psf Calculation: Pdesign = D+SQRT(0.6)W (asd) DOWNFORCE CASE 1 Pdesign 33 3psf Calculation: Pdesign = 1.0D+1.0S DOWNFORCE CASE 2 Pdesign 23.30 23.30 23.30 psf Calculation: Pdesign = 1.0D+1.0W DOWNFORCE CASE 3 Pdesign 18.23 18.23 18.23 psf Calculation: Pdesign = 1.0D+0.75S+0.75W DESCRIPTION SYMBOL VALUE VALUE VALUE UNIT MODULE LENGTH C ft MODULE WIDTH B ft DESIGN LOAD PER MODULE T ‐463.63 ‐838.62 ‐1259.98 lbs Calculation: T = Area * W DISTRIBUTED LOAD (UPLIFT)w ‐71.33 ‐129.02 ‐193.84 plf Calculation: w = T/B*2 *Assumes 2 rails per row DISTRIBUTED LOAD (DOWNFORCE)w 37.86 37.86 37.86 plf Calculation: w = PB/2 *Assumes 2 rails per row RAIL SPAN BETWEEN ANCHORS POINTS L 44 2ft POINT LOAD (UPLIFT )R ‐285.31 ‐516.08 ‐387.69 lbs Calculation: R = PLB/2 *Assumes 2 rails per row POINT LOAD (DOWNFORCE )R 151.45 151.45 75.73 lbs Calculation: R = PLB/2 *Assumes 2 rails per row L‐FOOT CONNECTED BY WOOD SCREW Specific Gravity, Rafter G 0.5 0.5 0.5 Table 11.2A, NDS 2005, page 68 (Southern Pine) Min. Dia. of Lag Screw, 1/4 D 0.25 0.25 0.25 In Pullout Value of W 225 225 225 lbs/in W=1800 G3/2 D3/4 # of Lag screws 22 2 Thread Length Td 1.5 1.5 1.5 In Table L2, NDS 2005 Design Pullout Value per Mount Wt 675 675 675 Wt = W * # of Lags *Td SAFTEY FACTOR SF 2.37 1.31 1.74 Calculation: SF=Wt/R (Uplift) ` DESIGN FACTORS & CALCULATIONS FOR THE USE OF L‐FOOT TO ROOF TRUSS 5.42 3.25 150 > 7 to 27 B 10 15