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HomeMy WebLinkAboutINSTALLATION GUIDEvcanft�va ::�'SMMOUNT� le Cc) ryINSTALLATION GUI---------- DE ---------- ----------------------------------------------------- TABLEbF CONTENTS A -SYSTEM COMPONENTS B- MODULE COMPATIBILITY C- SYSTEM LAYOUT D- FIRE SYSTEM COMPLIANCE NOTES E-ROOF ATTACHMENT & L-FEET F-SPLICE & THERMAL BREAK G-ATTACH RAILTO L-FEET H-MICROINVERTER MOUNTING I -SYSTEM GROUNDING 1- ENDCLAMP,TRIM & FIRST MODULE K-BONDING MIDCLAMP & TRIM L- REMAINING MODULES &.TRIM M- BONDING CONNECTION GROUND PATHS N- BONDING CONNECTION. GROUND PATHS-- MAINTENANCE 0-TRIM RETROFIT INSTALLATION I P.UB2016APR1S S;;SMSOLAR STANDARD SYSTEM COMPONENTS: E on MOUNT INSTALLATION GUIDE ; PAGE Wrenches and Torque Wrench Size Recommended Torque (ft-Ibs) 1/4" Hardware aeo 7/16" *10 3/8" Hardware a 9/16" '30 a12 Hardware © 5/16" 10 Torques are not designed for use with wood connectors 'w/Anti-Seize. Stainless steel hardware can seize up,a process called galling.To significantly reduce its likelihood: 1. Apply minimal Lubricant to bolts, preferably Anti -Seize commonly found at auto parts stores 2. Shade hardware prior to installation, and 3. Avoid spinning stainless nuts onto bolts at high speed. ORAIL: Supports PV modules. Use at least two per row of modules. Aluminum extrusion, available in mill, clear anodized, or dark anodized. ORAILSPLICE: Non structural splice joins,aligns,and electrically bonds rail sections into single Length of rail. Forms either a rigid or thermaLexpansion joint, 4 inches long, pre -drilled (see page F). Anodized aluminum extrusion available in clear or dark. OSELF-DRILLING SCREW: (No. 12 x 3/4� — Use 4 per rigid splice or 2 per expansion joint. Stainless steel. Supplied with splice. In combination with rigid splice, provides rail to rail bond. OIL -FOOT: Use to secure rails through roofing materiaLto building structure. Referto loading tables or U-Builder for spacing. OL-FOOT T BOLT: (3/8" x 3/4") Use one per L-foot to secure rail to L-foot. Stainless steel. Supplied with L--foot. In combination with flange nut, provides electrical bond between rail and L foot. OSERRATED FLANGE_ NUT (3/8"): Use one, .per L-foot .to secure and bond rail to L foot. Stainless steel. Supplied with L-foot: OMODULE ENDCLAMP: Provides bond from rail to endclamp. Pre -assembled aluminum clamp available in clear or dark finish. Supplied washer keeps clamp and bolt upright for ease of assembly. OMODULE MIDCLAMP: Pre -assembled clamp provides module to module and module to rail bond. Stainless steel clamp and T-bolt. Available in clear or dark finish. O.MICROINVERTER MOUNTING BOLT: Pre -assembled bolt and nut attaches and bonds microiriverter to rail. Washer at base keeps bolt upright for ease of assembly. NOTE - POSITION INDICATOR:'T--bolts have a slot in the hardware end corresponding to the direction of the T-Head. NMI SOLAR L _ TI B I LITY won SMMODU E COMPA ■■ ; MOUNT INSTALLATION GUIDE PAGE E SIZE F SIZE ENDCLAMP D SIZE K SIZE ENDCLAMP C SIZE ENDCLAMP ENDCLAMP B SIZE ENDCLAMP ENDCLAMP ° P3ut u!c T?Fict:nss , 50mm to 51mm zt I-. 45mm to 47mm ` J .977n to 3A uh F.jc'-„ia ThicE:rt r #oOlc T;iicltn> ;n Mrsdule Nm"llus5 38mm to 40mm ; 39mm to 41mm m•771a ec U5111 totitily rr, Irt;rQ_ 33mm to 36mm ° c I.50+..� .a .57in 1,S }ir, to 1,61in ° 30mm to 32mm 1.50i.z io l.Zin ^ ° %.Hintis;.7Gin --------------------------------------------- =------------------------------------------------=---------------------------------------------- EF SIZE MIDCLAMP DK SIZE 2.5in ;I m.3 T bust MIDCLAMP ° BGSIZE 2.25ins ngT-belt ° MIDCLAMP ; 21n Ong T-ho1L ° ° � ®•� SOLAR ' ago,SYSTEM LAYOUT 1 an SM MOUNT INSTALLATION GUIDE ; PAGE PLANNING YOUR SOLARMOUNT INSTALLATIONS LAYING OUT L-FEET FOR TOP CLAMPS The. installation can be Laid out with rails parallel to the rafters or perpendicular L:feet, in conjunction with proper flashing equipment and techniques, can be to the rafters. Note that SOLARMOUNT rails make excellent straight edges for used for attachment through existing roofing material, such as asphalt shingles, doing layouts. sheathing or sheet metal to the building structure. 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 and fire codes require minimum clearances around such installations, and the instaLLer should check local building code requirements for compliance. The length of the installation area is equal to: • the total width of the modules, • plus 1/4" inch for each space between modules (for mid- clamp), • plus approximately 3 inches (11/z inches for each Endcl'amp) RAILS. MAY BE PLACED PARALLEL OR PERPENDICULAR TO RAFTERS Peak-(Ridge).,T. i -�-; l f - - - - ---.� t IF ,y -• �'-,-'-r T 141 m'. HIGH PROFILE LOW t i : PROFILE _ eft; MODE y;._L IJ" [ 1 MODE _ ,J (_ t? E t l i J _, r? " Locate and mark the position of the L-feet lag screw holes within the installation area as shown below. Follow manufacturer module guide for rail spacing based on appropriate mounting locations. 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 below as closely as possible. Refer Im 1111mc D&E- a3Uile ,7• U-Cuiidcr for iRuvjabi i2 Spm and Canitilz2vers. LAYOUT WITH RAILS PERPENDICULAR TO RAFTERS (RECOMMENDED) t If ?Foot spacuig + 1 t .RaRSpan.0 I r Rail' '� _, -- _ s f• � - i + i { T i Lower Rod. Edge i r 1 i. T } t r ' ,. Ra rs(Bullding Structure) ITS_, f 4 �. I I Note: Modules must be centered'symmetrically-on'the rails'(#/- 2"); 1- ■� SOLAR 1 CODE CO N OTES1®®:; an 1 MOUNTINSTALLATION GUIDE ;PAGE _________--------------------------------------------------------------- __ SYSTEM LEVEL FIRE CLASSIFICATION The system fire class rating requires installation in the manner specified in the SOLARMOUNT Installation Guide. SOLARMOUNT has been classified to the system level fire portion of UL 1703. This U1,1703 classification has been incorporated into our UL 2703 product certification. SOLARMOUNT has achieved system level performance for steep sloped roofs. System level fire performance is inherent in the SOLARMOUNT design, and no additional mitigation measures are required. The fire classification rating is only valid on roof pitches greater than 2:12 (slopes 3 2 inches per foot, or 9.5 degrees). There is no required minimum or maximum height limitation above the roof deck to maintain the system fire rating for SOLARMOUNT. Module Types & System Level Fire Ratings are listed below: RailType Module Type System Level Fire Rating Rail Direction Module Orientation Mitigation Required Standard Rail Type 1,Type 2, Type 3 & Type 10 Class A, Class B & Class C East-West Landscape OR Portrait None Required North -South Landscape OR Portrait None Required Light Rail Type 1 & Type 2 Class A, Class B & Class C I East-West Landscape OR Portrait None Required North -South Landscape OR Portrait None Required UL2703 CERTIFICATION MARKING LABEL :Unirac-SOLARMOUNT is listed to UL'2703. Marking Labels are shipped with the-Midclarrmps.After the racking system is fully assembled, a single Marking LabeLshould be applied to the.SOLARMOUNT rail at the edge of the array. Note: The sticker label should be placed such that it is visible, but not outward facing. r. • • • • • UNIRACSOLARMOUNT f4M nUIORTUM1eWPAM 1 WX$V=%Ah4*4XW WW R„�„ sv�.rwaww�rwtp+.uca Uiw"m 'nswnqutrrewla9aRer�rwearo r � SM STANDARO RAIL SM LIGHT RAIL • • � UNp7AC SOLARMOUNT rrolalmn W.r.ID�1W��r9�Rr� yrratn��uaaatenl WIR+ rvvwr r 10-1wa-local-"OMlw ULWZrm nilta�atrruw�arwRRAeme+e�e r m;;?$MSOLAR ROOF ATTACHMENT&L-FEET;■ MOUNT INSTALLATION GUIDE I PACE ROOF PREPARATION: Layout and install flashing at rafter locations determined per Design and Engineering Guide. is - DRILL PILOT HOLES: Center the roof attachment over the rafter and drill a pilot holes) for the lag bolt(s). NQ T S; IMAQDI R@ L-3 d-ptn_ Quid-k tip: Pre-dAtt Ole pito; <Iol n x:+r; Quoh th—a zl« 91_shing Lag 1­4 3ccaiirn fot ca.slc r 2 PIECE ALUMINUM STANDOFF WITH FLASHING & L-FOOT: • If necessary cut an opening in.the roofing material over rafter to accommodate the flashing riser. • Installthe standoff, ensuring that both lag bolts are screwed into the rafter. • Insert the flashing under the shingle above and over the shaft of the standoff. (No-CalkTm collar does not require sealing of the flashing and standoff shaft) • Add L-Foot to top with bolt that secures the EPDM washer to the top of the standoff. See StandcHs L FLashings Instatiation Manual 907.3 for Additional Details. FIAT FLASHING INSTALLATION: Insert the Flat Flashing so the top part is under the;next row of shingles and the hole lines up with the pilot hole. INSTALL LAG BOLTS -& L-FOOT: Insert the tag bolt through the L-Foot in the order shown in the illustration. Verify proper orientation before tightening lag bolts. See Unirac flat Ftaslrinq Nlanuai for Addit::onal Detai:s. TOP MOUNT TILE HOOK & L-FOOT: • Remove or slide up the roof tile, position the roof hook above the roof -rafter • Place Tite Hook in the middle of the underlying interlocking tile's valley. Drill 3/16 inch pilot holes through the underlayment into the center of the rafters. Securely fasten each tile hook to the rafters with two 5/16" x 3'h" lag screws. Slide down or re-insert the tile. • Attach L.Foot to tile roof hook. Sep Tile Hoof; Universal T4oun=� Install;:tion Manual forAdditional infornii titian. Now: SOLAR SSPLICE & THERMAL BREAK N ■• MOUNT INSTALLATION GUIDE PAGE SPLICE INSTALLATION (IF REQUIRED PER SYSTEM DESIGN) If your installation uses SOLARMOUNTsplice bars,attach the rails together before mounting to the L-feet/footings. Use splice bars only with flush installations or those that use Low -profile tilt legs. A rail should always be supported by more than one footing on both sides of the splice. There should be a gap between rails, up to 3/16" at the splice connections. T-bolts should not be placed less than a distance of 1" from the end of the rail regardless of a splice. TORQUE VALUE (Sea Note on Hen is-.-:3 {r c,? = _ siae 5iii 6'- Du not exceed i0 f',-)bs. Dc. riot use Aiiti-Seize. Mnx lan t cv" �-PRCk­J sail is 40 ft. An " cpansion jniirz is r L�quired i 4-0 ft. EXPANSION JOINT USED AS THERMAL BREAK Expansion joints prevent buckling of rails due to thermal expansion. Splice bars may be used for thermal expansion joints. To create a thermal expansion joint, slide the splice bar into the footing slots of both rail Lengths. Leave approxi- mately 1/2" between the rail segments. Secure the splice bar with two screws on one side only. Footings (such as L-feet or standoffs) should be secured normally on both sides of the splice. No PV module or mounting hardware component should straddle the expansion joint. Modules must clearly end before the joint with mounting hardware (top mount Endclamps) terminating on that rail.T-bolts should not be placed less than a distance of 1"from the end of the rail regard- less of a splice. The next set of modules would then start after the splice with mounting hardware beginning on the next rail. Athermal break is required every 40 feet of continuously connected rail - For additional concerns on thermal breaks in your specific project, please consult a licensed structural engineer. Runs of rail less than 40 feet in length,with more than two pairs spliced together, are an acceptable installation for the SOLARMOUNT systems. gamiling connection for splice used as a thermal brea". Option shazvn uses two iiscc lugs (NondcA ln. C-C-i-4DBT P/H 0l.-4D9T- see; product data sheet for more 6-tail5} anal solid cnp?xer wire. •;; SMSOLAR ATTACH RAIL TO LTEET; ■ on MOUNT INSTALLATION GUIDE I PACE PLACE T BOLT INTO RAIL & SECURE BOLT: Insert 3/8" T bolt into rail at L-foot Locations. Apply Anti -Seize to bolt..Rotate T-bolt into position. ALIGN RAILS: Align one pair of rail ends to the edge of the installation area. The opposite pair of rail ends will overhang installation area. Do not Trim them off until the installation is complete. If the rails are perpendicu= La.r to the rafters, 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, the aligned end of the rails, must face the lower edge of the roof. Securely tighten- all hardware after alignment is complete. 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. SECURE TBOLT: Apply Anti -Seize to bolt. Rotate T bolt into position. i lvcatiuvla for sr. . • : DO NOT USE I LIGHTRAIL i ;. al ��•Y � f X..... 00 NOT USE ' 4 - �� ya i a SM LIGHT RAID`' SM STANDARD RAIL: Use SM LIGHT RAIL: For a lower profile array when using either slot to connect SM Light rail, rotatethe L-foot to orient the side with the L foot to the rail to only one (1) slot against the rail. Only use the slot obtain the desired height location closet to the rail to connect the lag bolt to and alignment when the flashing / roof on the side with two (2) slots. using SM Standard rail. NOTE: Use only the top slot to connect the L-foot to the rail to obtain the desired height and alignment when using SM Light rail. ALIGN POSITION INDICATOR: Hand tighten nut until "rail alignment is complete. Verify that position indicator on bolt is vertical (perpendicular to rail) TORQUE VALUE (See Note or, PG. A) 3f3" neat to 30 ft-lbs Smsou�R MICROINVERTER MOUNTING; m man MOUNT INSTALLATION GUIDE I PAGE 2 INSTALL MICROINVERTER MOUNT T BOLT: Apply Anti -Seize and install pre-assembled'/a" dia. bonding T-bolts into top 1/a" rail slot at microinverter Locations. Rotate bolts into position. 0 INSTALL MICROINVERTER: Install microinverter on to rail. Engage with bolt. INSTALL MICROINVERTER: iC QQUFVAWE tyre Ivlote cin e-G-A) 114 'scut to 10 it-lbs 0 ALIGN POSITION INDICATOR: Verify that position indicator on bolt is perpendicular to rail. "gal ' SM SOLAR MICROINVERTER SYSTEM GROUNDING N an MOUNT INSTALLATION GUIDE PAGE SM EQUIPMENT GROUNDING THROUGH ENPHASE MICROINVERTERS The Enphase M215 and M2.50 microinverters have integrated grounding capabilities built in. In this case,the'DC circuit is isolated, from the AC circuit, and the AC equipment grounding conductor (EGQ is built into the Enphase Engage integrated grounding (IG) cabling. In order to ground the SOLARMOUNT racking system through the Enphase microinverter and Engage cable assembly, there must be a minimum of three PV. modules connected to the same trunk cable within a continuous row. Continuous row is defined as a grouping of modules installed and bonded per the requirements of this installation guide sharing the same two rails. The mic�oinverters are'bonded to the SOLARMOUNT rail via the mounting hardware. Complete equipment grounding is achieved through the Enphase Engage cabling with integrated grounding (IG). No additional EGC grounding cables are required, as-all"fault.current is. carried to ground through the Engage cable. RSOLARMOUNT INTEGRATED. BONDING ADVANTAGE OSE ALL THE COPPER & LUGS SOLAR ELECTRICAL GROUNDING W/ R SPLICE & THERMAL BREAK ■ ■ ®, �1lPHASEMICR0IMIERI� I� MI® : SM MOUNT INSTALLATION GUIDE ; PAGE w Enphase Microinverter (MI) Requirements Enphase Microinverter (MI) Requirements Enphase Microinverter (MI) Requirements (Model No.-M215 & M250) (Model No. M215 & M250) (Model No. M215 & M250) 3 Microinverters sharing same trunk cable & rails 3 or more Microinverters sharing same trunk cable & rails Min. 3 Microinverters on each side of thermal break MINIMUM LAYOUT REQUIREMENTS'—— Min. 3 microinverters sharing { same trunk cable & rails j RAIL SPLICE Min. 3 microinverters sharing same trunk cable & mils l � . '� /yam"-,+�' ^ ���'•,' _ j � j �}x ELECTRICAL BONDING SPLICE _J MINIMUM LAYOUTREQUIItEMENTS19 3 or more microinverters sharing same trunk cable &sits -L RAIL SPLICE -- � � TE-IER IAI' S R 5 A 1 EXPANSION.JOINT USED AS THERMAL BREAK W/ GROUNDING LUGS & COPPER JUMPER MINIMUM LAYOUT REQUIREMENTS ,11-7­7] Min. 3 microinverters on each side of thermal break t: RAILSPLICE THERMill. 8iREAIC L; Less than 3 microinverters NOT on each side of thermal break ACCEPTABLE W SPLICE EXPANSION JOINT USED AS THERMAL BREAK W/O ELECnUCALBONDING CONNECTION --------------------------------------------------------------------------------------------------------------------------------------------- NOTE:THE,ABCOVEIMt.GESARESAMPLEC{ONFIGIMATIONS10ILLUS RATET'HE-PL1,1UIREV,EMT5FORSM SYSTENGRO13ND! NGTHR0UG4Ea`iPHASEN11CROiNVERTE[iSDESCRIBED ONRA.GEF2 MENMI N ISM S��p STANDARD SYSTEM GROUNDING; � s� MOUNT INSTALLATION GUIUE ;I PACE GROUNDING LUG MOUNTING DETAILS: Details are provided for both the WEEB and Ilsco products. The WEEBLug has a grounding symbol located on the lug assembly.The Ilsco lug has a green colored set screw for grounding indication purposes. Installation must be in accordance with NFPA NEC 70, however the electrical designer of record should refer to the latest revision of NEC for actual grounding conductor cable size. Required if not using appT4-tVvd integra?-A grounding wirroinve ter 5 G OUNDING LUG - GROUND LUG BOLT SIZE & DRILL SIZE BOLT SIZE DRILL SIZE WEEBLug 1/4' N/A- Place in Top SM Rail Slot ILSCO Lug #10-32 7/32" • Torque value depends on conductor size. • See product data sheet for torque value. WEEBLUG Tw-l'M1 AL TGRglJ , Single Use Only r,ncztlt•ertoar lor',rid dwtntGuf� to 417s i�ltc.^rir�; WEEBLUG'CONDUCTOR - UNIRACP/N 008002S: Apply Anti Seize and insert a bolt in the aluminum rail and through the clearance hole in the stainless steel flat washer. Place the stainless steel flat washer on the bolt, oriented so the dimples will contact the aluminum rail. Place'the lug portion on the bolt and stainless steel flat washer. Install stainless steel flat washer, Lock washer and nut -Tighten the -nut until the dimples are completely embedded into the rail and lug. TORQUE VA1.f7 10 ft ib-, (':et? ; oYU on PG. A) See prcduci data sho-=t Scr morc62talls, Icdct NaWEEEB-LUG-&.7 � C.F:l 7t;f . mtaP uicl la...<::t Csr�iui.tx a3,d ',J 1,10 NUS-wh1q: 4-•G AVIG: 35 in-bas 71 70-14 AMrC::?0 in-ltS ILSCO LAY -IN LUG CONDUCTOR-UNIRAC P/N 008009P: Alternate Grounding Lug - Drill, deburr hole and bolt thru both raft walls per table. TOtz0(3E vALOE S if tbs. (5eu I "ote on r-G. A) Set ILSCO product d,",ta ,beat for more tip=.aits, rs odet N,). G8L-=IDB p. NOTE: ISOLATE COPPER FROM ALUMINUM CONTACTTO PREVENT CORROSION SMSoIAR ENDCLAMP, FIRSTMODUH URIM; ■ ■■ MOUNT INSTALLATION 6111Df I PAGE INSTALL MODULE ENDCLAMPS: The Endclamp is supplied as an assemblywith a T bolt,serrated-flange 'nut, and washer.The washer retains the clamp at the top of the assembly. This will enable the clamp to remain -upright for module installation. INSTALL FIRST MODULE- Install the first end module onto 'rails. Engage module frame with Endclamps. Verify that the position indicator & T bolt shaft are angled in the correct position. TORQUE VALUE (See dote oil PG. A) 1/4" nuts to 10 ft-ibs, w/Anti Seize .- V p r � f INSERT ENDCLAMP T BOLT: Insert 1/4" T bolt into rail. POSITION, INDICATOR - SERRATED T BOLTi Verify the T bolt position indicator is perpendicular to the rail. •P s `slF �, •� a � _ ROTATE ENDCLAMP T BOLT: Rotate T--bolt into position. Verify that. the position indicator & T-bolt shaft are angled in the correct position. End dartins are po-giidonco on rails pri3r ti'5 Viva, h�5m cnl module apd-installer] after the lose eta�l ��nr,ate, TRIM INSTALLATION INSTRUCTIONS TRIM ENDCLAMPS: Install Endclamps on Trim 'in like manner to module endclamps, per install instructions above. TORQUE VALUE (See Note on PG.1) 1/4" nuts to 10 ft-lbs w/ Anti Seize ■■;S�SouR BONDINCMIDCLAMP&TRIM; ii� � MOUNT INSTALLATION GUIDE PAGE '..: y� a A r INSTALL MIDCLAMPS: Midclamp is supplied as an INSERT MIDCLAMP T BOLT: Apply Anti -Seize and ROTATE MIDCLAMPTBOLT:-Rotate bolt into position assembly with a T-bolt for module installation. insert 1/4"T bolt -into rail and slide until bolt and clamp are against "module Clamp assemblies may be positioned in rail near frame. Do not tighten nut until next module is in point of use prior to module placement. position. Verify that the position indicator & T-bolt shaft are angled in the correct position. POSITION INDICATOR - SERRATED T BOLT: Verify the T-.bolt position indicator is perpendicular to the rail TRIM INSTALLATION INSTRUCTIONS 'TRIM MIDCLAMPS: Ensure Trim lip is in contact with module face and verify alignment marks .on T-bolts are in proper position, tighten midclamp on Trim, repeat at each gap between modules. TORQUE VALLIE (See Nate on PC. i) 1/4" nuts to 10 I-Ibs ,v/ Anti Seize m;; S�SOLAR REMAINING MODULES & TRIM; an MOUNT INSTALLATION GUIDE; PAGE ------------------------------------------------------------------------------------------------------ INSTALL REMAINING MID -CLAMPS: Proceed with module installation. Engage each module with previously positioned Midclamp assemblies. NOTE: Apple Anti-Seizt: ro et rh Reid Ct�Jmp pricrto in stall -neon. INSTALL ENDCLAMPS: Apply Anti -Seize and install final Endclamps, in same manner as first Endclamps. Slide clamps against module. TORQ,ltE VALUE (See i Iote an PG. A) 1/4' mats to 10 rE-lbs: vi/Anti Seize POSITION TBOLT ALIGNMENT MARKS: Verify that the position: indicator(s) & T-bolt shaft(s) are angled in the correct'position. TGIRQ jE VALUE (Sep N otQ on PG. A) 1/4" nut:3 to 10 ;t-l.Ls. vi/1-Anti Seize POSITION T BOLT ALIGNMENT MARKS & CUT RAIL: Verify that the position indicator(s) & T-bolt shaft(s). are angled in the correct position. Trim off any excess rail, being careful not to cut into the roof. Allow 1/z" between the Endclamp and the end of the rail. FINISH MODULE INSTALLATION: Proceed with module installation. Engage each module with the previously positioned clamp assembly: • InstalL second module • Install remaining Midclamps & modules & position alignment marks • Install Endclamps & position alignment marks Cut rail to desired length TRIM INSTALLATION INSTRUCTIONS FINISH TRIM INSTALLATION, INSTALL ENDCLAMP & CUT EXCESS RAIL: Install final endclamp & Cut away excess Trim at end of array or where required for proper. cantilevers. Sri: D&E`Guide or U-BOIder stir allowable cantilevers. TORQUE VALUE (See Note on PCZ. 2) 1/4" nuts to 10 f'�-lbs ii Ariti. Seize r .. ;SMmouNT BONDING CONNECTION Mom Mv��CF eoHo� � I�GTB ••, BONDING MIDCLAMP ASSEMBLY Stainless steel Midclamp points, 2 per module, pierce module frame anodization to bond module to module through clamp. Serrated flange nut bonds stainless steel clamp to stainless steel T-bolt Serrated T-bolt head penetrates rail anodization to bond T-bolt, nut, clamp, and modules to grounded SM rail. ENDCLAMP ASSEMBLY Serrated flange nut bonds aluminum Endclamp to stainless steelT-butt Serrated T-bolt head penetrates rail anodization to bond T-bolt, nut, and Endclamp to grounded SM rail ,.:.... , w':td de. s not C:mdl BONDING MICROINVERTER BONDING RAIL MOUNT SPLICE BAR Option 1: Ground Through 0° W Enphase Trunk Cabtc d 5 u c W BONDING MIDCLAMP ASSEMBLY, _ �r®� • •�r �� r ' B 'A , D Option 2, Ground Lug wl RAILTO L-FOOT w/BONDINGT-BOLT Bare Copper Wire BONDING RAIL SPLICE BAR 'GROUND PATHS'� INSTALLATION GUIDE ;I PAGE --------------------------------------------- Stainless steel self drilling screws drill and tap into splice bar and rail creating bond between splice bar and each rail section Aluminum splice bar spans across rail gap to create rail to rail bond. Rail on at least one side of splice will be grounded. t::x 4i:d L�Citlad f:•�irs±: «t_a Wit. 'fir ;;;c:: ter iintitio-1 is r-1 BONDING MICROINVERTER MOUNT Hex nut with captive lock washer bonds metal microinverter flange to stainless steel T-bolt Serrated'T-bolt head penetrates rail anodization to bond T-bolt;nut,and L-footto grounded SM mil s;; : n gmi rrl inrlutitq cihcnj m:d ir::daics rr y chrcxt=yh tH rr rabto of a;-,prc.-.^d ni:r it r cr .. n3. y n I fcr d -t.::N RAIL TO L-FOOT W/BONDING T BOLT 19 Serrated flange nut removes L-foot anodization to bond L-Foot to stainless steelT--bolt Serrated T-bolt head penetrates rail anodization to bond T-bolt, nut, and L-foot to grounded SM rail RACK SYSTEM GROUND WEEB washer dimples pierce anodized rail to create.bond between rail and lug Solid copper wire connected to lug is routed to provide final system ground connection. ti_io ._ �� _tom used viti.�i cttwrcd N a ,•f sit^ rail. Scz paj,v i• 3 for denis , SMSOLAR BONDING CONNECTION.GROUND PATHS: M,. ii� � MOUNT INSTALLATION GUIDE I PAGE „`� � •IIIR ',. F Tf�'i�ENP�IRARY 'BONDING D RAYMAfNY A�NCE `� . lop TEMPORARY BONDING CONNECTION DURING ARRAY.MAINTENANCE When removing modules for replacement or system maintenance, any moduleleft in place that is secured with a bonding MidcLamp will be properly grounded. If a module adjacent to the end module of a row is removed or if any other maintenance condition .leaves a module without a bonding mid clamp, a temporary bonding connection must be installed as shown Attach Ilsco SGB4 to wall of rail Attach Ilsco SGB4 to module frame Install solid copper wire jumper to Ilsco lugs ELECTRICAL CONSIDERATIONS SOLARMOUNT is intended to be used with PV modules that have a system voltage less than or equal to 1000 VDC. For standard system grounding a minimum 10AWG, 105°C copper grounding conductor should be used to ground a 1000 VDC system, according to the National Electric Code (NEC). It is the installer's responsibiLityto check local codes,which mayvarySee belowfor interconnection information. INTERCONNECTION INFORMATION There is no size limit on how many SOLARMOUNT & PV modules can be mechanically interconnected for any given configuration, provided that the installation meets the requirements of applicable building and fire codes. GROUNDING NOTES The installation must be conducted in accordance with the National Electric Code (NEC) and the ,authority having jurisdiction. Please refer to these resources in your location for required grounding lug quantities specific to your project. The grounding / bonding components may overhang parts of the array to care must be made when walking around the array to avoid damage. Conductor fastener torque values depend on conductor size. See product data sheets for correct torque values. ,;; $Mso�aR TRIM,RETROFIT INSTALLATION'111111 an MOUNT INSTALLATION GUIDE : PAGE PREPARATION: At front edge of array, ensure at least 3.25 inches of space between modules androof surface and that modules are.alignedto within 3/8" Plan for Trim length so that Endclamps-can be -properly installed. INSERT MIDCIAMPS: Insert T bolt into slot and slide clamp (rotating Trim) into position between modules and leave loose. Continue to work down array, inserting Midclamps and positioning in gaps between modules. 1ST'MIDCLAMP: Position Trim in front of array Insert Midclamp into the Trim slot, aligned with the gap between the 1st two modules at either end of array. NOTE: Apply Awl-Scize tq Ll.cli Mid - Clamp. prior to insintlation FASTEN MIDCLAMPS: Return to each inserted. Midclamp: Ensuring Trim lip is in contact -with module face and verifying alignment marks on T=boLts are in proper position, tighten clamp. TORQUE VALUE (,ec Meta on �c,,1) 'a/4" nots to 10 ft-lbs vvl tApt; ii7,- MOUNT TRIM: Position Trim beneath modules by sliding T bolt into gap between modules and tighten. Midclamp should stay in position and support TrimTighten.snugly enough so that Trim is held firmly in place. TOPQUE VALUE' Do not excce spy'ac ic_d'iiSiqun,.VLatQz (110 ENDCIAMPS Install Endclamps per previous Endclamp install, instructions TO P1QUE VALUE [lea t.itie cn p ,1) 1/41'rauts to 10 ft-1 s w/ Anti SCI;yi� CLEAR 'TBOLT SLAT: Rotate unattached end of Trim out and away from array so T-bolt slot (at next T bolt insertion point) is clear of modules. This may require force to deflect the Trim slightly. Deflect only enough to insertT bolt. CUT EXCESS TRIM: Mark excess Trim and cut at end of array or where required for proper cantilevers.