SFM SUN FRAME MICRORAIL™ INSTALLATION GUIDE TABLE OF CONTENTS A —TOOLS & SPECIFICATIONS B —SYSTEM COMPONENTS C —SYSTEM COMPONENTS D —SYSTEM COMPONENTS E —FLASHLOC COMPONENTS F —SYSTEM LAYOUT G —THERMAL EXPANSION LIMITS H —FLASHKIT MOUNTING I —FLASHLOC MOUNTING J —1ST ROW INSTALLATION K —TRIMRAIL & MICRORAIL INSTALLLATION L —MODULE MOUNTING M —MODULE MOUNTING N —FLOATING TRIMRAIL INSTALLATION O —MICROINVERTER & WIRE MANAGEMENT P —MICROINVERTER & WIRE MANAGEMENT Q —FINISHING TOUCHES R —FINISHING TOUCHES S
SFM SUN FRAME MICRORAIL™ TECHNICAL SPECIFICATIONS: Material Types All extruded components: 6005A-T61 or 6061-T6 Aluminum Hardware: Stainless Steel Bonding and Grounding: Integrated in MicrorailTM (TrimraillTM and row to row bonding require additional components) TOOLS & SPECIFICATIONS A INSTALLATION GUIDE PAGE TOOLS REQUIRED OR RECOMMENDED FOR LAYOUT, FLASHINGS & ROOF ATTACHMENTS: • Hammer • Marker / crayon • Measuring tape • Drill • Pilot drill bit • Pry bar • String line TOOLS FOR MODULE INSTALL: •
SFM SYSTEM COMPONENTS SUN FRAME MICRORAIL™ INSTALLATION GUIDE PAGE B SUNFRAME Microrail™ - 2" SUNFRAME Microrail™ 6.5" Splice SUNFRAME Microrail™ 8" Attached Splice Sub-Components: Sub-Components: Sub-Components: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
SFM SYSTEM COMPONENTS SUN FRAME MICRORAIL™ INSTALLATION GUIDE PAGE TrimrailTM and Module Clips Sub-Components: 1. 2. 3. 4.
SFM SYSTEM COMPONENTS SUN FRAME MICRORAIL™ INSTALLATION GUIDE PAGE Module-to-Module N-S Bonding Sub-Components: 1. 2. 3. 4. Clamp Bonding Pins (2) 5/16" Socket Head Cap Screw Clamp Base Functions/ Features: • • • Row to row bonding Single Use Only Fits module sizes 30-40mm SFM Slider Flashkit Sub-Components: 1. 2. 3.
SFM SUN FRAME MICRORAIL™ FLASHLOC COMPONENTS INSTALLATION GUIDE PAGE 1 1 2 3 2 Flashloc Trim Attachments Sub-Components: 1. Trim Assembly 2. Hardware (Hex Bolt) 3. Plastic Cap Functions: • Attach TrimrailTM to roof attachment E Flashloc SFM Slider Sub-Components: 1. Structural Screw & SS EPDM washer 2.
SFM SYSTEM LAYOUT SUN FRAME MICRORAIL™ F INSTALLATION GUIDE PAGE 1. Determine appropriate array location on roof. NOTE: Consult local AHJ regarding setback requirements 2. Select starting course of shingles (or tiles) 3. Mark next row of attachments and repeat for remaining rows N 4. Locate 1st rafter closest to array edge (and inside array footprint) and mark S N 5.
SFM SUN FRAME MICRORAIL™ THERMAL EXPANSION LIMITS INSTALLATION GUIDE PAGE NORTH-SOUTH THERMAL EXPANSION LIMITS: • 12 Rows of modules - Landscape orientation • 7 Rows of modules - Portrait Orientation EAST-WEST THERMAL EXPANSION LIMITS: • 33ft. with no module gap (butted modules) • 100ft. with a minimum module gap of 1/8" MAX ROWS LANDSCAPE = 12 PORTRAIT =7 1" N/S GAP SET BY SFM SYSTEM GEOMETRY INSTALLED E/W MODULE GAP 0.
SFM SUN FRAME MICRORAIL™ FLASHKIT MOUNTING H INSTALLATION GUIDE PAGE INSTALL SLIDERS AND ROOF ATTACHMENTS: Follow manufacturer instructions for flashing installation procedures UP-SLOPE PILOT HOLES: Drill pilot holes for lag screws or structural screws (as necessary) at marked attachement points FLASHINGS: Place flashings Mod NS + 1" NOTE: If N-S module edge is within 1” of the shingle course above, you have the option to pivot / rotate slider at the attachment point to span the next course
SFM FLASHLOC MOUNTING SUN FRAME MICRORAIL™ INSTALLATION GUIDE DO : DO NT: PRE-INSTALL: STEP1:SECURE Clean roof surface of dirt, debris, snow and ice. Locate rafters and mark attachment locations. Drill 7/32" pilot holes for structural screw. Place FLASHLOC over backfilled pilot hole and drive structural screw until mount is held firmly in place. BACKFILL ALL PILOT HOLES WITH SEALANT. WARNING: Do not over-torque the structural screw.
SFM 1ST ROW INSTALLATION SUN FRAME MICRORAIL™ J INSTALLATION GUIDE PAGE ALIGN FRONT ROW: Align front row TrimrailTM roof attachments with string line TIP: Pull String-line across back (smooth) edge of attachments TIGHTEN SLIDER: Tighten front row lag screw and TrimrailTM roof attachment channel clamp socket head cap screw. TRIMRAIL PREPARATION: Determine overall length of TrimrailTM for front row. Determine splice locations (if any) and TrimrailTM lengths required.
K INSTALLATION GUIDE PAGE SFM TRIMRAIL & MICRORAIL INSTALLATION SUN FRAME MICRORAIL™ ATTACH TRIMRAIL TO ROOF ATTACHMENT: Attach rail using 3/8" hex bolt & Tri-drive or serrated flange nuts. Make sure TrimrailTM is level across all TrimrailTM roof attachments. After rail is level, tighten channel clamp bolts to secure TrimrailTM roof attachments to channels. INSTALL MODULE CLIPS ON TRIMRAIL: Attach module clips to Trimrail using 3/8" T-bolts and Tri-drive or serrated flange nuts.
LAY IN MODULE(S): Install first two (2) modules on bottom row. Install downhill end of module into the TrimrailTM and module clips first and then position uphill 2" microrails to support modules. LAY IN MODULE(S): Module should slide into catch features of the TrimrailTM and module clips. SEAT MODULE(S): Ensure that modules are properly seated in cap and base. ADJUST MICRORAIL CAP DOWN TO ENGAGE WITH MODULE: With microrail pressed against module 1.
SFM MODULE MOUNTING SUN FRAME MICRORAIL™ M INSTALLATION GUIDE PAGE Wire management is performed after each row of modules is installed. Refer to wire management section (pp. O & P) for detailed instructions. ATTACH SPLICE: Attach splice at intersection of two (2) modules. • Use attached splice if required per SFM D&E Guide. • Ensure minimum module engagement using indicator marks.
SFM FLOATING TRIM INSTALLATION SUN FRAME MICRORAIL™ TrimrailTM Roof Attachment or Floating Trim Clamp Acceptable N INSTALLATION GUIDE PAGE REQUIREMENTS FOR TRIMRAILTM ROOF ATTACHMENTS & FLOATING TRIM CLAMP: 1. TrimrailTM Flashkit Roof Attachments shall be used at rafters nearest to and under outside edges of array (unless noted per item 3). TrimrailTM Roof Attachment or Floating Trim Clamp Acceptable 2.
SFM SUN FRAME MICRORAIL™ PRE-INSTALL MLPE: Install MLPE in a location on the module that will not interfere with microrails or grounding lugs. To use trunk cable most efficiently, install MLPE components in the same locations on all modules in the same row. TORQUE VALUE: 20FT-LBS MICROINVERTER & WIRE MGMT. O INSTALLATION GUIDE PAGE MLPE MOUNTING LOCATION & WIRE MANAGEMENT: Install the MLPE Mount on the short side of the module when mounting in landscape orientation.
SFM SUN FRAME MICRORAIL™ MICROINVERTER: Before installing a row of modules place microinverter trunk cable. MICROINVERTER & WIRE MGMT. INSTALLATION GUIDE PAGE WIRE MANAGEMENT: Verify wire management is complete after each row is installed. EXAMPLES: MICROINVERTER TRUNK CABLE: The trunk cable can be managed securely by using stainless steel wire management clips attached to the module frame. P TIPS & TRICKS: Twisting the PV module wires and/or tying a loose knot can also help manage these wires.
SFM SUN FRAME MICRORAIL™ FINISHING TOUCHES INSTALLATION GUIDE PAGE POST INSTALL HEIGHT ADJUSTMENT: Height adjustment of each attached MicrorailTM assembly can be performed by rotating the height adjustment feature with a ¼” hex drive tool. Clockwise SECTION C-C rotation will adjust the MicrorailTM upward. Counter clockwise rotation will adjust the MicrorailTM downward. Insert hex drive tool through holes in caps to access the height adjustment feature. SCALE 1.
SFM FINISHING TOUCHES SUN FRAME MICRORAIL™ INSTALLATION GUIDE PAGE N/S Bonding N/S Bonding Clamp: Insert clamp between modules. Torque to 20 ft.-lbs. TRIMRAILTM Bonding TRIMRAILTM Bonding: Insert clamp and Tbolt into trimrail slot. Tighten tri-drive nut until bonding pin contacts module. Torque to 20 ft. lbs. R Trimrail Bonding Alternate Method: Attach a bonding clip from the TrimrailTM to an adjacent module.
SFM SUN FRAME MICRORAIL™ SYSTEM BONDING & GROUNDING S INSTALLATION GUIDE PAGE E-W BONDING PATH: E-W module to module bonding is accomplished with 2 pre-installed bonding pins which engage on the secure side of the MicrorailTM and splice.
SFM SUN FRAME MICRORAIL™ UL CODE COMPLIANCE NOTES SYSTEM LEVEL FIRE CLASSIFICATION The system fire class rating requires installation in the manner specified in the SUNFRAME MICRORAIL (SFM) Installation Guide. SFM has been classified to the system level fire portion of UL 1703. This UL 1703 classification has been incorporated into the UL 2703 product certification.
SFM SUN FRAME MICRORAIL™ UL CODE COMPLIANCE NOTES U INSTALLATION GUIDE PAGE LABEL MARKINGS • System fire class rating: See installation instructions for installation requirements to achieve a specified system fire class rating with Unirac . • Unirac SUNFRAME MICRORAILTM is listed to UL 2703. • All splices within a system are shipped with marking indicating date and location of manufacture.
SFM TESTED / CERTIFIED MODULE LIST SUN FRAME MICRORAIL™ V INSTALLATION GUIDE PAGE Manufacture Module Model / Series Manufacture Module Model / Series Manufacture Module Model / Series Aleo P-Series Eco Solargy Orion 1000 & Apollo 1000 LGxxxN2T-A4 CHSM6612P, CHSM6612P/HV, CHSM6612M, ET Solar ET-M672BHxxxTW LGxxx(A1C/E1C/E1K/N1C/N1K/N2T/N2W/ CHSM6612M/HV, CHSM6610M (BL)(BF)/(HF), FreeVolt Mono PERC Q1C/Q1K/S1C/S2W)-A5 CHSM72M-HC GCL GCL-P6 & GCL-M6 Series Astronergy Auxin AXN6M610
SFM Manufacture TESTED / CERTIFIED MODULE LIST SUN FRAME MICRORAIL™ Module Model / Series INSTALLATION GUIDE PAGE Manufacture TwinPeak 2 Series VBHNxxxSA17 & SA18, Panasonic REC (cont.) VBHNxxxKA01 & KA03 & KA04, Phono Solar PS-60, PS-72 Prism Solar P72 Series Plus, Pro, Peak, G3, G4, G5, G6(+), G7, G8(+) Pro, Peak L-G2, L-G4, L-G5, L-G6, L-G7 Q.
REMOVE 2" CAPS: 1.Remove capbolt 2. Separate cap from base by moving east/west 3. Remove cap INSTALLATION GUIDE PAGE X SFM MODULE MAINTENANCE SUN FRAME MICRORAIL™ REMOVE 8" CAPS: 1.Remove (2) cap bolts 2. Separate cap from base by moving east/west 3. Remove cap SLIDE FLOATING SPLICE: 1. Loosen (3) cap bolts approx. 3 turns. 2. Slide entire floating splice away from module being removed.
SFM SUN FRAME MICRORAIL™ CONSIDERATIONS & MAINTENANCE ELECTRICAL CONSIDERATIONS SUNFRAME Microrail is intended to be used with PV modules that have a system voltage less than or equal to that allowable by the NEC. A minimum 10AWG, 105°C copper grounding conductor should be used to ground a system, according to the National Electric Code (NEC). It is the installer’s responsibility to check local codes, which may vary.
