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Plans • PROJECT NOTES 1. 303.2-PV SYSTEMS AND SUPPORTING STRUCTURE SHALL 6. ...CONTINUED...SECTION IS LARGER THAN 150 FEET MEASURED 10. PER 305.4 ITEM 3-TOTAL SYSTEM WEIGHT SHOULD NOT COMPLY WITH REQUIREMENTS OF OSSC CHAPTER 6 OR THE. IN LENGTH OR WIDTH.EXEMPTION 1A:WHERE PV ARRAY DOES EXCEED 4.5 PSF.PV MODULES AND RACKING SHALL BE ORSC AS APPLICABLE NOT EXCEED 25%AS MEASURED IN PLAN VIEW OF TOTAL ROOF DIRECTLY ATTACHED TO ROOF FRAMING.ATTACHEMENTS 2. 303.3-ALL PV MODULES TO BE UL 1703 LISTED AREA OF THE STRUCTURE,A MINIMUM OF 12"UNOBSTRUCTED SPACING WILL BE 48"ON CENTER MAX,WHEN ATTACHMENT IS 3. 303.5-PV SYSTEM SHALL HAVE A FIRE CLASSIFICATION THAT PATHWAY SHALL BE MAINTAINED ALONG EACH SIDE OF ANY LOCATED WITHIN 3'OF ROOF HIP,EDGE,EAVE,AND RIDGE IS EQUAL TO OR GREATER THAN THE ROOF ASSEMBLY HORIZONTAL RIDGE. SHALL BE 24"ON CNETER MAX REQUIRED BY OSSC SECTION 1501.1 7. ROOF STRUCTURE IS CONVENTIONAL LIGHT FRAMED WOOD 11. MAX MODULE HEIGHT WILL NOT EXCEED 12"OFF ROOF 4. 303.6-ALL COMPONENTS OF THE PV SYSTEM SHALL BE CONSTRUCTION WITH 2X4 TRUSSES AT 24"ON CENTER MAX SURFACE RATED FOR THEIR USE. EXEMPT FROM ALLOWABLE SPAN REQUIREMENTS IN TABLE 12. SECTION 304.7-MECHANICAL EQUIPMENT CLEARANCES OF 30" 5. 303.4-303.8-PV LAYOUT SHALL NOT RESTRICT EGRESS. 305.4.1 MINIMUM ON ROOF. LIGHT,VENTILATION,OR ROOF DRAINAGE 8. 304.9.5-DISCONNECTS,J-BOXES,COMBINER BOXES OR 6. 304.9.1 GERNERAL PATHWAYS REQUIREMENTS EXEMPTION I: GUTTERS SHALL NOT BE PLACED IN ANY REQUIRED PATHWAYS ATTACHMENTS EVERY 24"ON CENTER ON STRUCTURE WITH A PV ARRAY AREA OF 1,000 SF OR LESS OR CUTOUTS WHEN UNDER 36"FROM ANY HIP,EAVE, INSTALLED ON A ROOF WITH A SLOPE THAT EXCEEDS 2:12 9. ROOF MATERIAL IS COMPOSITION ROOF,IF METAL,FOLLOWS VALLEY.ATTACHMENTS ARE EVERY AND WITH AN INTERSECTING ADJACENT ROOF WHERE NO PRECRIPTIVE PATH IN 2010 OREGON SOLAR CODE RIDGE,OR VALL LL WHEN OVER 36" VALIDITY OF PERMIF 1�'+ OFFICE COP THE ISSUANCE OF A PERMIT F L J = ,..,„ >, ,::.'ll. BASED ON CONSTR ION s„ezd°" PMepPaP°1DOCUMENT ' , a OT ER JUN 2 5 2020 S�0°C�plf. �•Pc DATA NOT PREY: Toff (-F '' ' ��°tStaY Met�°Gt - CODE OFFICIAL FR 3UiL.CIa�<0 L.. ,. ,.,'': `OP + ' 4.: AtL p4s°O' L. 4: ` - REQUIRING THE CORRECT•N ..,r , - P OF ERRORS.ORSC 105.=° ii.,:, ,y Approv: • •lane® 6 ` _shall be o • a Sit,2 S{ ik . o', o�NF ' yo' d T ` t • azelwoo•''-oo0 CITY O ' RDA N0"R� \ • c'• r t �`"`; ,; REVIEWED FOR COD ; COMPLIANCE + , • Approved: [ �`A ° o-" �' L OTC: [ 1 a ..- - ' �' 0.. Fcrmit #• mTT2-o2- — ,'�Z-1 b �` ' ,`, ,'' r .,� Address: \\�bp : • t zen1 LIABILITY , •t �' Pe The City of Tigard and its . , „ t., -, I;. - Suite #: — employees shall not be By: A-n- Date - G� J.2.0 responsible for discrepancies x which may appear herein. . ENERGY SOLUTIONS,LLC SUSAN MURRAY N PO BOX 887 11600 SW HAZELWOOD LOOP / BEAVERCREEK,OR 97004 TIGARD OR 97223 ENERGY 503.680.3718 971.285.1528 W 4110b1- E CCB#202002 5.4 KW SOLAR ARRAY-RESIDENTIAL Solutions Ir '- ENLARGED ROOF PLAN s Inside: 150 Amp MSP AC Combiner Panel Outside: Utility Meter AC Disconnect 00 ❑ o ❑ 3 0' L9WEST R DING D 13'6" AI 4 0 • 0 O 0 0 p 0 Ti j 1 • O • 0 0 •, 7 1 1 20' 1 1 dt0 a • ❑ s'• 0 0I • 14. 1 - 48' MODULE END CLAMP RAFTER or PRE-ENGINEERED TRUSSES I J_ _; i �_J_L-� r_J_L I I I I 1 I 1 1 t 1 1 1 1 11 I 11I I 11 1 1 1 1 I 1 1 I 1 1 1 11 m 1 n cr. 1 M[DULE CLAMP iii�. III, - COMPOSITION ROOF 1 VS �� --FOOT PV MODULE TYP. P 16 I MODULE MID CLAMP L-FOOT RACKING RAIL STANDARD RAIL i FLASHING 1 ASNINc 1 r 1 r I �.� r 11 ill79 1 ]m 1 CLW:%SC-[]N�'a%SCE[! :9- .� ul I I i 5� 1,±4" 11 I I I I 11 11 11 11 11 11 11 II 11 11 11 II 11 11 11 48"MAXIMUM,BETWEEN ATTACHMENTS A MOUNTING PLAN VIEW(PORTRAIT) ®MOUNTING DETAIL PV"8 SCALE 1'=1'-6" SCALE 1'=2'-0' 5.25" aooNaoo ®�� . coMeoS ,: ; ra osiosi2o2o �L,ice/� RAFTER OR TRUSS 24"ON CENTER to �y4'� PROF""0�,�, GINFh,,R% _� f� C 85997 i N 4,OR 0 Sltv. EXPIRES9b- -2 2D B MOUNTING METHOD STRUCTURALASP PV-8 SCALE 1"=7-0" ECTS ONLY System Information Labels PV Module Ratings Inverter Ratings Photovoltaic AC Disconnect Module Make Solaria Inverter Make Enphase AC Output Current = 18.2 A ENERGY Module Model PowerXT-360R-PD Inverter Model IQ7PLUS-72-2-US Nominal AC Voltage = 240 V Max Power = 360 W Max. Output Power = 290 W Solutions Open Circuit Voltage = 47.7 V Max. DC Voltage = 60 V Max Power Point Voltage = 39.5 V Norminal AC Voltage = 240 V P.O. Box 887 Short Circuit Current = 9.56 A Max. AC Current = 1.21 A Beavercreek,Oregon 97004 Max Power Point Current = 9.13 A CEC Inverter Efficiency = q37.0% Phone: 503-680-3718 Meter Base UTILITY ERVIC O©© \ ©O ., © Main OCPD 1150A O 7 Modules w!It - — J-Box AC Micro inverters (at array) Main Solar Branch#1 Combiner AC Panel-- I Disconnect 25A 8 Modules w! w/(2)20A _J___ Unfused Circuit — Main I Micro-inverters Breakers (@ Meter) /,, G Service Branch#2 _ __ — Panel 150A Bus O _ BUILDING Service = GROUNDING ELECTRODE PV System meets requirements for Rapid Shutdown as defined in 690.12 EQUIPM ENT SCHEDULE RE1 DESCRIPTION PN NOTES 1 SOLAR P1 MODULE POWERXT-360R PD SOLARIA 360W MONOCRYSTALLINE MODULE Notes: 2 ACIDC MICRO-IWENiEN IQ7PLUS-72-2-US ENPHASE290W MICROINVERTER o Equipment, conductors and conduit 3 ARRAY HARDWARE TBD FLUSH MOUNT ROOF RACKING as listed or equivalent. 4 JUNCTION BOX TBD FOR'TRANSITION FROM TRUNK CABLE TO NM CABLE(ROND() o DC side of the Micro-Inverter is 5 AC COMBINER PANEL X-IQ-AM1-240-2 ENPHASE IQ COMBINER+PANEL W/IQ BW OY, 125A BUS BAR isolated. A DC CEG is not required. 6 BRANCH CIRCUIT OCPD BRK-20A-2-240 EATON BR220,20A,2-POLE,240V CIRCUrr BREAKER(BACK-FED) ONE-LINE STANDARD ELECTRICAL DIAGRAM 7 MAIN SOLAR AC DISCONNECT DU222NRB SQUARED,SAFETY SWITCH,60A,240V,2-POLE,UNFUSED PROJECT REF: Murray,Susan 8 MAIN SOLAR OCPD TBD 25A,240V,2-POLE CRCUIT BREAKER(BACK-FED) SITE ADDRESS: 11600 SW Hazelw ood Loop, 9 MAIN SERVICE PANEL NSA 150A MAIN BREAKER W/150A BUS,240V(EXISTING) Tigard,OR 97223 SYSTEM SIZE 5.4 kW CONDUIT&CONDUCTOR SCHEDULE REF DESCRIP./CONDUCTOR TYPE CONDUCTOR GAUGE NUMBER OF CONDUCTORS CONDUIT TYPE CONDUIT SIZE 1 Branch of 7&1 Branch of 8 Nodules/Inverters (Solaria 360W/Enphase IQ7-Plus) A ENPHASEQ-12-20-200 CABLE #12 2(Per Cable) IN FREEAIR B BARE CU #6 1 IN FREE AIR Sheet 1 of 3 C NM or NMC(Rorrex) #12/#10 2/1 (x 2) IN FREE AIR Date: June 25, 2020 6 THWN-2 #10/#8 3/1 EMT 1" NOT TO SCALE PORTLAND/HILLSBORO Elev. High Temp Distance above roof !Extreme ENERGY 0.4% 2%Avg. 0.5" 3.5" 12" Min 62 m 37 °C 32 °C 54°C 4=i 'C 46 °C -8 °C _ Solutions Correction Temperatures Voltage Droo calculations: vossionmonms °° 887 ♦]Void=-8°C-25°C=-33°C t,Th°i=(37°C+ 35°C)-25°C=47°C DC voltage drop is insignificant because of micro-inverters mounted at P.O.Box ( ) Beavercreek, Oregon 97004 Flush Roof Mount PV modules. Phone: 503-680-3718 Module Voltaae Calculations Per Enphase Technical Brief on Calculating AC Line Voltage Rise for Solaria 360W Mono (PowerZT-360R-PD) IQ-Series Micros with Q Cable for center termination of IQ7+,240V, Voc=47.7V Vmp=39.5V Voc Temp Coefficient=-0.29%/°C portrait trunk cable, Branch Circuit AC voltage drop for: Isc=9.56A Imp=9.13A Pmax Temp Coefficient=-0.39%/°C 7 or 8 micro-inverters is given as 0.09%. Cold Voc=47.7V+(47.7V x-0.29%/°C x-33°C)=47.7V+4.56V=52.3V Worst case branch circuit drop on branch of 8. Hot Vmp=39.5V+ (39.5V x-0.39%/°C x 47°C)=39.5V-7.24V=32.3V AC conductor run from junction box to ac combiner is 65 ft(estimated) Micro-inverter output voltage is 240V, 1.21A x 8=9.7A Enphase IQ7PLUS-72-2-US (2 x 65ft x 9.7A x 1.984/kft x 100)/(1000fUkft x 240V)= 1.04% Max DC Input Voltage: 60V Max DC Isc: 15A AC conductor run from AC Combiner to Interconnection is 30 ft(est) DC Operating range: 16V-60V Peak Power Tracking Voltage: 27V-45V Micro-inverter output voltage is 240V, 1.21A x 15= 18.2A AC output voltage:240V AC output current: 1.21A (2 x 30ft x 18.2A x 1.24U/kft x 100)/(1000ft/kft x 240V)=0.56% Max Branch Circuit Size: 13 Max Branch Circuit OCPD: 20A 0.09%+ 1.04%+0.56%= 1.69%total worst case voltage drop Conductor Amoacitv.OCPD&Disconnects Branch Circuit: 1.21Ax8x125%=12.1A Conditions of use-3 branch circuits in nonmetallic sheathed cable(2 current carrying conductors per)not on the roof: 12.1A+ 1.0= 12.1A #12 AWG NM(rated for 20A into 60°terminals and required OCPD) 20A,240V,2-Pole Back-Fed Circuit Breaker in AC Combiner Panel AC Combiner Output Circuit: 1.21A x 15 x 125%=22.7A #10 AWG(rated for 35A into 75°terminals and required OCPD) 25A,240V,2-Pole Circuit Breaker(Back-Fed)in the MSP. 30A,2-Pole,240V, Unfused AC Disconnect adjacent to the utility meter. Table 1.10:Internal Q Cable VRlse(Portrait Cable, Q-12-10-240) 11K +' 240V I P I IQ 7+Microinverters per branch ELECTRICAL CALCULATIONS PROJECT REF: Murray,Susan 1 2 3 4 5 6 7 8 9 10 11 12 13 SITE ADDRESS: 11600 SW Hazelwood Loop, Tigard,OR 97223 Current(A) 1.2 2.4 3.6 4.8 6.0 7.3 8.5 9.7 10.9 12.1 13.3 14.5 15.7 SYSTRvI SIZE 5.4 kW 1 Branch of 7&1 Branch of 8 Modules/Inverters VRise(V) 0.02 0.06 0.12 0.20 0.31 0.43 0.57 0.73 0.92 1.12 1.35 1.59 1.86 (Solaria 360W/Enphase IQ7-Plus) Sheet 2 of 3 VRIse(%) 0.01 0.03 0.05 0.09 0.13 0.18 0.24 0.31 0.38 0.47 0.56 0.66 0.77 Date: June 25, 2020 Notes: • PV System compliant with requirements for Rapid Shutdown per 690.12. • Each microinverter is attached to the racking at the back of the ENERGY corresponding PV module. • Enphase Raw Q Cable(#12 AWG)may be used to span from the Enphase Q Trunk cable of each branch to the penetration through the roof. Once Solutions `ions below the roof, conductors are transitioned to Nonmetallic Sheathed Cable (Romex or equivalent). The Raw Q Cable is installed below the array and P.O.Box 887 attached to racking frame members. Beavercreek,Oregon 97004 • Branch circuits penetrate the roof where the transition from Enphase Raw Q Phone: 503-680-3718 Cable to Nonmetallic Sheathed Cable is made. • The Enphase AC Combiner Panel is located inside,adjacent to the Main Service Panel.The Main Solar AC Disconnect is located outside,adjacent to the Meter. • Nonmetallic Sheathed Cable will be run(per Code)in open space. No deratings for condition of use will be required. • Conductor sizing for the NMC is minimum required to meet ampacity calculations. Current carrying conductors will typically be upsized due to cable meeting the#10 AWG minimum ECG size. • Circuit breakers in the AC Combiner Panel serve as disconnecting means for each branch of microinverters. • The Q Cable will be connected in a"Center-Fed"configuration to minimize AC voltage drop in each branch. • Enphase recommends maintaining a total voltage drop for 2%or less from the array to the point of interconnection,and a less than 1%for the Q Cable. • Conductor run lengths and voltage drop to be confirmed. Conductors will be upsized as required to maintain 2%or less total voltage drop. • Interconnection via a back-fed circuit breaker in the Main Service Panel. Complies with 705.12. • If a 25A circuit breaker can not be sourced, a 30A circuit breaker may be used. Conductors will still be protected and it will still comply with 705.12. • Conductor sizing listed is minimum required based on NEC ampacity calculations for CU conductors or voltage drop calculations. • Conduit sizing based on listed conductors and NABCEP recommended maximum fill of 25%. Conduit sizing may need to be recalculated for conductors of a different type. Conduit may be sized to comply with NEC, Annex C. Minimum recommended conduit size is 3/4". • All electrical work must be made in accordance with the local and applicable National Electrical Code ANSI/NFPA 70. • PV System to be installed and labeled per National Electric Code. Specifically: -690.4(D) -690.31(B) -690.5(C) -690.35(C)and (F) DESIGN/BUILD NOTES -690.13(B) 690.5(C) PROJECT REF: Murray,Susan -690.17(E)rs 705.12(D)rid SITE ADDRESS: 11600 SW Hazelw ood Loop, • Inverters listed to UL-1741 for grid-interactive use and GFDI protection. Tigard,OR 97223 • All equipment,conductors&conduit as listed or equivalent. • All equipment used is UL listed. SYSTEM SIZE 5.4 kW 1 Branch of 7&1 Branch of 8 Modules/hverters (Solaria 360W/Enphase IQ7-Plus) Sheet 3 of 3 • Date: June 25, 2020