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Home My WebLink About8232 Sandpine Cir - Solar PV PlansGodwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 3'-3" 5'-6" R-1 # Modules (20) Pitch: 26° Azimuth: 90° FRONT OF HOUSE R-1 4/12/2021 PB . . 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 2018 IRC Customer Info: S-1 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Represents all Fire Clearance including Alternative methods 2020 FL Residential Code & FBC, 7th Edition (2018 International Residential Code) - 2nd Printing modified by the FL Building Standards , 2018 International Energy Conservation Code, County of Saint Lucie Code, 2017 National Electric Code. Legend First responder access Sheet Index S-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 Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7-60-2-US (20) Hanwha Q-Cells 315W Q-Rail Light 6,300W Composition Shingles 20 to 27 Deg Roof Tech Mini's Layout Subject to Change Based on Site Conditions Meets All Editions of Florida Fire Prevention Code 7th Edition Compass for Aerial General Notes: -Enphase IQ7-60-2-US 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 70th Edition, Chapter 11.12 Install will be done to Manufacturer Spec Elizabeth Packer 8232 Sandpine Cir. Port Saint Lucie, FL 34952 Ground Access Point 2' Access Pathway Utility Meter -COGEN Disconnect Located adjacent to Utility meter Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 4/12/2021 PB . . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 -Designed as per ASCE7-16 -Modules mounted flush to roof no higher than 6" above surface. -Per 2020 FBC, the Roof Mounted PV System will be subject to the following design criteria: Design Wind Speed(Vult) - 160mph 3 sec gust, Exposure Category - C Customer Info: S-2 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7-60-2-US (20) Hanwha Q-Cells 315W Q-Rail Light 6,300W Composition Shingles 20 to 27 Deg Roof Tech Mini's Install will be done to Manufacturer Spec Elizabeth Packer 8232 Sandpine Cir. Port Saint Lucie, FL 34952 General Notes: - Roof Tech Mini's are secured to rafters @ 24" O.C. in Zone 1, @ 24" O.C in Zone 2e @ 24" O.C. in Zone 2r, @ 24" O.C in Zone 3 using (2) M5 x 60mm stainless steel Lag bolts. - Subject roof has One layer. - All penetrations are sealed. Roof Section Pitch Roof Rafter and Spacing Overhang Notes: R1 6/12 2"x4" @ 24 O.C.12"Truss Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 4/12/2021 PB . . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 In Case of Emergency Call Sun Tec Solar Energy at 727-571-4141 #10 AWG THWN for Home runs (1) Line 1 (1) Line 2 Per Circuit #8 AWG THWN (1) EGC Inside @ least 3/4" Conduit (tbd on site) Photovoltaics: (20) Hanwha Q-Cells 315W Inverters: (20) Enphase IQ7-60-2-US Micro Inverters Circuits: (2) circuits of (10) Modules Maximum Inverters Per 20A Circuit (16) Roof Enphase Combiner Box Meter Line Side Tap 60A Service Rated Fused Disconnect Neutral to Ground Bond AC Disconnect (1) - 20A 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: #10 AWG THWN (2) Hot (1) Neutral #8 AWG EGC in @ least 3/4" Conduit Typically 30A Main Service 150A 150A Bus Optional load side connection (when available) Per 705.12(B)(2)(3)(b) Use Matching or equivalent approved breaker if derating (1)#8 AWG EGC & GEC E-1 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Busbar Rating 150 150 30 30 30 Load Side Connection Main Breaker Size Bus Rating *1.2-Main Break Size Max Allowable Load Side Load Size Breaker Size AC Max Output Current AC Max Output Current * 1.25% Overcurrent Protection (A) No. of Current Carrying Cond Conductor Gauge (AWG) 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 - Ungrounded system per 690.41(A)(4) - 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. - GEC must be min #8 AWG and installed in conduit - If GEC is not in conduit, it must be #6 min per NEC 690.54 Utility PV AC Disco 30A Non-Fused Disconnect Main Distribution Panel 150A Main Manual Disconnect 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. 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 2017 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 Elizabeth Packer 8232 Sandpine Cir. Port Saint Lucie, FL 34952 Located Adjacent to Utility Meter In Compliance with NEC 705.12(B) Enphase IQ Trunk Cable Q-12-240 #12AWG THHN-THWN-2 UL 9703 Grounding Conductor to be bare #8 Awg #X-IQ-AM1-240 Solar Combiner Box 10 12.5 20 <4 10 240V Inverter Type: Enphase IQ7-60-2-US PV Panel: (20) Hanwha Q-Cells 315W Total Wattage: 6,300W SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN THE ARRAY. SOLAR ELECTRIC PV PANELS 3/8 IN MIN. TEXT 3/16 IN MIN. TEXT ! WARNING ! POWER SOURCE OUTPUT CONNECTION: DO NOT RELOCATE THIS OVERCURRENT DEVICE PHOTOVOLTAIC SYSTEM ! AC DISCONNECT ! RATED AC OUTPUT CURRENT: 20A NOMINAL OPERATING VOLTAGE: 240VAC 2 Circuits 10A Breaker for Envoy System meets the grounding requirements of NEC 690.43 20 25 30 <4 10 Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 14' 7' Splice Bar 10 Q-Mount Mids 4' Q-Mount Ends/End Caps Q-Mount Ground Lugs Q-Rail Light 54 36 8 8 1 2 Hanwha Q-Cells 315WEnphase IQ7-60-2-US 20 20 Combiner 60A Fused Disconnect 1230A Fuses w/ reducers 220A Breakers 1Enphase Combiner Box Roof Tech Mini's R-1 # Modules (20) Pitch: 26° Azimuth: 180° 59'-11" 2'-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 LL L L L L L L L L 5'-6" 3'-3" 54'-3" 4/12/2021 PB . . 7300 Bryan Dairy Rd STE 400 Seminole, FL 33777 727-571-4141 Customer Info: S-1A Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Enphase IQ7-60-2-US (20) Hanwha Q-Cells 315W Q-Rail Light 6,300W Composition Shingles 20 to 27 Deg Roof Tech Mini's Install will be done to Manufacturer Spec Elizabeth Packer 8232 Sandpine Cir. Port Saint Lucie, FL 34952 Plans satisfy zones FBC-1510.7.1 Max cantilever is 8" as per manufacturer spec. Max Cantilever = Max Span * (13)=24"*(13)=8"Zone 1: Zone 2e:Max cantilever is 8" as per manufacturer spec. Max Cantilever = Max Span * (13)=24"*(13)=8" Max cantilever is 8" as per manufacturer spec. Max Cantilever = Max Span * (13)=24"*(13)=8"Zone 2r: Zone 3:Max cantilever is 8" as per manufacturer spec. Max Cantilever = Max Span * (13)=24"*(13)=8" GODWIN ENGINEERING AND DESIGN, LLC 8378 Foxtail Loop, Pensacola, FL 32526 | (850)712-4219 | chad@godwineng.com April 13, 2021 To: St. Lucie County Building Division 2300 Virginia Avenue Ft. Pierce, FL 34982 Re: Packer – Residential PV Roof Mount Installation 8232 Sandpine Cir. Port Saint Lucie, FL 34952 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: 2020 Florida Building Code 7th Edition, FBC ASCE 7 Min. Design Loads for Buildings & Other Structures Per 2020 FBC, the Roof Mounted PV system will be subject to the following design criteria: Design Wind Speed(Vult) - 160mph 3sec gust, Exposure Category – C 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 QRail railing and the RT mini mounts. The attachments can be attached up to 24” apart in roof zones 1, 2e, 2r, & 3. 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. 02/28/2023 Risk Category II Table 1.5‐1 Load, PSf Basic Wind Speed (Ult) 160 Figure 26.5‐1B 3 Wind Speed (asd) 124 IBC 1609.3.1 0 Roof Angle 26 °0 Effective Wind Area 18.19 ft2 26.20 n/a Wind Load Parameters n/a Wind Directionality Kd 0.85 Table 26.6‐1 n/a Exposure Cat. B,C, or D C Section 26.7 n/a Topographic factor Kzt 1.00 26.8 or 26.8.2 n/a Ground Elevation Factor Ke 1.00 Table 26.9‐1 n/a Velocity Exposure Coefficient Kz 0.85 Table 30.3‐10 Array Edge Factor gE 1.50 29.4.4 *Modules are considered Exposed n/a Solar Panel Equalization Factor ga 0.70 Fig. 29.4‐8 see calc Velocity Pressure qp 28.41 psf qh=0.00256 KzKztKdKeV2 n/a Mean Roof Height h 20.00 ft h2 5inNot > 10in(height above roof) 0.4h 8.00 ft 2h2 10 in *min distance array shall be from the roof edge, Gable Ridge, or hip ridge 398 in 0.25 in min gap between all panels but not > 6.7ft 3.32 ft d1 1.00 ft Horizontal distance orthogonal to panel edge Roof Zone Set Back a 3.32 ft d2 0.25 ft Horizontal distance from edge of one panel to the nearest edge in the next row h/B 0.60 0.5h 10.00 ft 1.5Lp 8.30 ft 12r2e3 GCp ‐1.30 ‐1.80 ‐1.80 ‐1.80 uplift GCp 0.70 0.70 0.70 0.70 downward p = qh(GCp)(gE)(γa)‐38.56 ‐53.39 ‐53.39 ‐53.39 psf uplift p = qh(GCp)(gE)(γa)20.76 20.76 20.76 20.76 psf downward Module Length C(Lp)ft Module Width B ft Module Area A ft2 Total Design Load (Uplift)Pdesign ‐38.56 ‐53.39 ‐53.39 ‐53.39 psf Total Design Load (Downforce)Pdesign 20.76 20.76 20.76 20.76 psf Design Load per Module Tup ‐701.54 ‐971.37 ‐971.37 ‐971.37 lbs Tup = A * Pdesign Design Load per Module Tdown 377.75 377.75 377.75 377.75 lbs Tdn = A * Pdesign Distributed Load (Uplift)Pdist. Up ‐106.62 ‐147.62 ‐147.62 ‐147.62 plf Tup / B*2 Distributed Load (Down)Pdist. Down 57.41 57.41 57.41 57.41 plf Tdn / B*2 Railspan Between Anchor Points L 2 2 2 2 ft Point Load per Mount (Uplift) R ‐213.23 ‐295.25 ‐295.25 ‐295.25 lbs Point Load per Mount (Down) R 57.41 57.41 57.41 57.41 lbs Specific Gravity G 0.55 0.55 0.55 0.55 Table 11.2A, NDS 2005, page 68 (SYP) Diameter of Lag Screw D 1/4 1/4 1/4 1/4 In Pullout Value of W 259.5802 259.5802 259.5802 259.5802 lbs/in W=1800 G3/2 D3/4 # of Lag screws 2222 Thread Length Td 1.75 1.75 1.75 1.75 In Table L2, NDS 2005 Design Pullout Value per Mount Wt 447 447 447 447 Wt = W * # of Lags *Td SAFTEY FACTOR SF 2.10 1.51 1.51 1.51 Calculation: SF=Wt/R (Uplift) 12r2e3 Max Cantilever M 8 8 8 8 in Max rail span * 33% Snow, S Self‐Straining, T Wind, W Wind‐on‐Ice, Wi ASCE 7‐16 CHAPTER 29 WIND LOADS ‐ Rooftop Solar Panels Minimum Design Loads ‐ Part 1: Enclosed(Hip, h<60ft, 20°<θ<27°) Load Types Dead Load, D Weight of Ice, Di Rain, R Earthquake, E Fluid, F Roof Live, Lr Flood Load, Fa Lateral Earth psi, H Live Load, L Maximum Cantilever from Last attachment Table 1.1 ‐ Pullout Value, Max Span, Max Cantilever ‐ RT Mini 10% of least horizontal dim least horizontal dim 5.53 3.29 18.19 Figure 30.3‐2G(Hip roof, h<60ft, 20°<θ<27°) Zone Design Calculations for the Use of Attachment to Roof Truss/Rafter