SM SOLAR MOUNT INSTALLATION GUIDE PUB16JAN05
SM SOLAR MOUNT STANDARD SYSTEM COMPONENTS INSTALLATION GUIDE PAGE RAIL: Supports PV modules. Use at least two per A SM STANDARD RAIL SM LIGHT RAIL Wrenches and Torque Anti-Seize* Wrench Size Recommended Torque (ft-lbs) 1/4” Hardware 7/16” *10 3/8” Hardware 9/16” *30 #12 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.
SM B SIZE ENDCLAMP MODULE COMPATIBILITY SOLAR MOUNT C SIZE INSTALLATION GUIDE PAGE D SIZE K SIZE ENDCLAMP E SIZE F SIZE ENDCLAMP ENDCLAMP ENDCLAMP ENDCLAMP Module Thickness 33mm to 36mm 1.30in to 1.42in Module Thickness 30mm to 32mm 1.18in to 1.26in Module Thickness 38mm to 40mm 1.50in to 1.57in Module Thickness 39mm to 41mm 1.54in to 1.61in Module Thickness 50mm to 52mm 1.97in to 2.05in Module Thickness 45mm to 47mm 1.77in to 1.
SM SYSTEM LAYOUT SOLAR MOUNT C INSTALLATION GUIDE PAGE PLANNING YOUR SOLARMOUNT INSTALLATIONS The installation can be laid out with rails parallel to the rafters or perpendicular to the rafters. Note that SOLARMOUNT rails make excellent straight edges for doing layouts.
SM CODE COMPLIANCE NOTES SOLAR MOUNT D INSTALLATION 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 UL 1703 classification has been incorporated into our UL 2703 product certification. SOLARMOUNT has achieved system level performance for steep sloped roofs.
ROOF ATTACHMENT & L-FEET E INSTALLATION GUIDE PAGE SM SOLAR MOUNT ROOF PREPARATION: Layout and install flashing at rafter locations determined per Design and Engineering Guide. DRILL PILOT HOLES: Center the roof attachment over the rafter and drill a pilot hole(s) for the lag bolt(s). NOTE: Determine lag bolt size and embedment depth. FLAT 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.
SM SPLICE & THERMAL BREAK SOLAR MOUNT F INSTALLATION GUIDE PAGE SPLICE INSTALLATION (IF REQUIRED PER SYSTEM DESIGN) If your installation uses SOLARMOUNT splice 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.
SM ATTACH RAIL TO L-FEET SOLAR MOUNT INSTALLATION GUIDE PAGE 3/8” T-bolt G OPTIONAL LOCATION 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 perpendicular to the rafters, either end of the rails can be aligned, but the first module must be installed at the aligned end.
SM MICROINVERTER MOUNTING SOLAR MOUNT H INSTALLATION GUIDE PAGE INSTALL MICROINVERTER MOUNT T-BOLT: Apply Anti-Seize and install pre-assembled ¼” dia. bonding T-bolts into top ¼” rail slot at microinverter locations. Rotate bolts into position. INSTALL MICROINVERTER: Install microinverter on to rail. Engage with bolt. INSTALL MICROINVERTER: TORQUE VALUE (See Note on PG.
SM SOLAR MOUNT MICROINVERTER SYSTEM GROUNDING 1I INSTALLATION GUIDE PAGE SM EQUIPMENT GROUNDING THROUGH ENPHASE MICROINVERTERS The Enphase M215 and M250 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 (EGC) is built into the Enphase Engage integrated grounding (IG) cabling.
SM ELECTRICAL GROUNDING W/ SOLAR ENPHASE MICROINVERTER FOR SPLICE & THERMAL BREAK I-2 INSTALLATION GUIDE PAGE MOUNT CONTINUOUS RAIL & ELECTRICAL BONDING SPLICE EXPANSION JOINT W/GROUNDING LUGS & COPPER JUMPER EXPANSION JOINT W/O ELECTRICAL BONDING CONNECTION Enphase Microinverter (MI) Requirements (Model No. M215 & M250) Enphase Microinverter (MI) Requirements (Model No. M215 & M250) Enphase Microinverter (MI) Requirements (Model No.
I-3 INSTALLATION GUIDE PAGE SM STANDARD SYSTEM GROUNDING SOLAR MOUNT ONLY ONE LUG PER ROW OF MODULES: Only one lug per row of modules is required. See Page F for additional lugs required for expansion joints. WEEBLUG CONDUCTOR - UNIRAC P/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.
SM ENDCLAMP & FIRST MODULE SOLAR MOUNT J INSTALLATION GUIDE PAGE INSTALL MODULE ENDCLAMPS: The Endclamp is supplied as an assembly with 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. 1/2" MIN. INSERT ENDCLAMP T-BOLT: Insert 1/4” T-bolt into rail. End clamps are positioned on rails prior to the first end module and installed after the last end module.
INSTALL MIDCLAMPS: Midclamp is supplied as an assembly with a T-bolt for module installation. Clamp assemblies may be positioned in rail near point of use prior to module placement. POSITION INDICATOR - SERRATED T-BOLT: Verify the T-bolt position indicator is perpendicular to the rail. K INSTALLATION GUIDE PAGE SM BONDING MIDCLAMP SOLAR MOUNT INSERT MIDCLAMP T-BOLT: Apply Anti-Seize and insert 1/4” T-bolt into rail.
INSTALLATION GUIDE PAGE FINISH MODULE INSTALLATION: Proceed with module installation. Engage each module with the previously positioned clamp assembly: • Install second module • Install remaining Midclamps & modules • Install Endclamps • Position alignment marks • Cut rail to desired length INSTALL REMAINING MID-CLAMPS: Proceed with module installation. Engage each module with previously positioned Midclamp assemblies.
LE 2 FRA ME FRA ND ING BONDING MIDCLAMP ASSEMBLY Stainless steel Midclamp points, 2 per module, pierce module frame anodization to bond module to module through clamp. 2 Serrated flange nut bonds stainless steel clamp to stainless steel T-bolt T-B O 3 Serrated T-bolt head penetrates rail anodization to bond T-bolt, nut, clamp, and modules to grounded SM rail.
SM SOLAR MOUNT TEMPORARY BONDING CONNECTION BONDING CONNECTION GROUND PATHS N INSTALLATION GUIDE PAGE REQUIRED ONLY FOR TEMPORARY BONDING DURING ARRAY MAINTENANCE 4 B- G oS lsc I MODULE REMOVED R PE BONDING MID CLAMPS MAINTAIN GROUND PATH LID E IR W P CO SO 4 B- G oS lsc I TEMPORARY BONDING CONNECTION DURING ARRAY MAINTENANCE When removing modules for replacement or system maintenance, any module left in place that is secured with a bonding Midclamp will be properly grounded.
