Solar Mounting Solutions Ultra Rail Residential Roof Mount System Installation Manual snapnrack.
An Intro to SnapNrack Ultra Rail snapnrack.com SnapNrack Ultra Rail Solar Mounting System offers a low profile, visually appealing, photovoltaic (PV) module installation system. This innovative system simplifies the process of installing solar PV modules, shortens installation times, and lowers installation costs.. SnapNrack systems, when installed in accordance with this manual, will be structurally adequate for the specific installation site and will meet the local and International Building Code.
Table of Contents snapnrack.com Step 1: Project Plans Certification Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Component Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pre-Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Step 2: Roof Attachment L Foot Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
snapnrack.com Certification Details SnapNrack Ultra Rail system has been evaluated by Underwriters Laboratories (UL) and Listed to UL/ANSI Standard 2703 for Grounding/Bonding, Mechanical Loading, and Fire Classification. Grounding/Bonding The Ultra Rail system has been designed in compliance with UL Standard 2703 Section 9.1 Exception, which permits accessible components that are not part of the fault current ground path to not be electrically bonded to the mounting system (e.g.
snapnrack.com Fire The Ultra Rail system has been evaluated for a Class A System Fire Classification for a Steep-Sloped Roof using Type 1 and Type 2 modules. In order to maintain the System Classification, modules are clamped to the mounting rails between 0 and 12 inches from the top and bottom edges of the module. The Ultra Rail system has been evaluated for a Class A System Fire Classification for a Low-Sloped Roof using Type 1 and Type 2 modules.
Component Details snapnrack.
Component Details snapnrack.
Component Details snapnrack.com Hardware Torque Specifications Hardware Description Torque Specification SnapNrack Ground Lug model 242-02101 to Grounding Electrode Conductor (6-12 AWG Solid Copper) SnapNrack Ground Lug model 242-92202 to Grounding Electrode Conductor and Module Frame 16 ft-lbs (192 in-lbs) 8 ft-lbs (96 in-lbs) Ilsco Lay-in Lug GBL-4DBT to Rail or Module Frame 2.92 ft-lbs (35 in-lbs) Ilsco Lay-in Lug GBL-4DBT to Grounding Electrode Conductor (10-14 AWG Solid Copper) 1.
Pre-Installation Requirements snapnrack.com Site Survey ò Measure the roof surfaces and develop an accurate drawing, including any obstacles such as chimneys and roof vents. ò If plans are available, check to make sure that the plans match the final structure. ò Identify any roof access areas or keep-out areas as required by the local AHJ (i.e. fire lanes). ò Identify any construction issues that may complicate the process of locating roof framing members from the roof surface.
Pre-Installation Requirements snapnrack.com Design Guidance 1) Layout the modules in the available roof area. Adjacent modules in the same row are spaced 1/2” apart by Mid Clamps. Adjustable End Clamps require an additional 1” of rail extending past module frame, while Universal End Clamps require no extra rail. When installing multiple rows of modules, a minimum spacing gap of 1/8” should be used between rows.
Pre-Installation Requirements snapnrack.com Design Note: Ultra Rail allows for multiple mounting configurations. Modules can be mounted in portrait (long side of module perpendicular to ridge) or landscape (long side of module parallel to ridge) orientations. In addition, modules can also be short side-mounted (module clamps on short side) or long side-mounted (module clamps on long side). Long-side mounting is recommended for maximum material efficiency.
Pre-Installation Requirements snapnrack.com System Layout 1) Transfer the array layout to the roof using a roof marking crayon to mark the inside and outside corners of the array. 2) Locate the estimated roof framing member positions and mark them in the array area with a roof marking crayon. 3) Transfer rail locations using a chalk line. 4) Mark roof attachment locations on the roof, noting that attachments will be located at intersections of rails and roof framing members.
L Foot Mount snapnrack.
L Foot Mount snapnrack.com INSTALLATION INSTRUCTIONS 1) Using roof attachment locations drawn during system layout, drill a pilot hole through the roofing material into the roof framing member. 2) Apply roofing sealant in and around the pilot hole, and directly onto the lag screw to ensure a water tight seal. 3) Pry up shingles with a breaker bar and install flashing underneath shingle course above pilot hole and, position flashing so cone is in line with pilot hole.
Tile Replacement snapnrack.
Tile Replacement INSTALLATION INSTRUCTIONS B A 1) Using roof attachment locations drawn during system layout, remove roof tile where the roof attachment will be installed. Slide riser assembly into base channel and snug by hand. 2) Locate base over rafter using riser position and Diagram 1 with measurements found in Table 1, then drill two pilot holes through the roofing material into the roof framing member.
Tile Replacement INSTALLATION INSTRUCTIONS 6) Install flashing into place on top of riser, allowing stud to come through hole in Tile Replacement flashing. 7) Install L Foot onto stud with Umbrella Nut, and tighten hardware.
Flat Tile Hook snapnrack.
Flat Tile Hook snapnrack.com INSTALLATION INSTRUCTIONS 1) Using roof attachment locations drawn during system layout, remove roof tile where the roof attachment will be installed and drill two pilot holes through the roofing material into the roof framing member. 2) Apply roofing sealant and attach the Tile Hook with (2) 5/16” lag screws, drive lag screws for minimum 2.5” embedment into the roof framing member. 4) Replace the roof tiles.
Ultra Rail Mounting Hardware snapnrack.
Ultra Rail Mounting Hardware INSTALLATION INSTRUCTIONS 1) Disassemble Ultra Rail Mounting Hardware components, taking note of their installation order and orientation.
Installing and Leveling Rails snapnrack.com Required Tools ò Level ò String Line or Spare Rail ò Socket Wrench ò 1/2” Socket ò Pitch Meter Materials Included - Installing and Leveling Rails q SnapNrack Ultra Rail w SnapNrack Ultra Rail Splice e Pre-Installed SnapNrack Roof Attachments Install on standing metal seam roofs (L Foot Mount, Tile etc.) that the seam clamp fitsReplacement, over.
Installing and Leveling Rails snapnrack.com INSTALLATION INSTRUCTIONS 1) Set rails into the attachments by dropping and snapping into the mounts. Connect multiple lengths of rail end to end using the SnapNrack Ultra Rail Splice (see “Ultra Rail Splice” section). Install Note: 2) Level the bottom rail of the array to the roof and tighten attachment points. Best Practice: Set attachments in the middle of available leveling range to start.
Leveling Components snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack L Foot Extension 2) Remove bolt from L Foot Extension and install onto preinstalled roof attachment, then set desired height and tighten hardware. 1) Remove Ultra Mount components from roof attachment, taking note of their installation order and orientation.
Ultra Rail Splice snapnrack.com INSTALLATION INSTRUCTIONS 1/8" 1) Align sections of rail so that ends butt up to each other. 2) Install rail splice assembly onto bottom of rail, making sure both rails are seated in grooves of splice and that the splice is centered. Install Note: Leave approximately 1/8” gap between rails to allow for thermal expansion of rail. 3) Tighten splice hardware. Install Note: Gap between rails must land between bonding clips on splice.
Module Installation snapnrack.
Module Installation snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack Mid Clamp 1) Snap the channel nut into the top channel of the rail. Best Practice: Backing channel nut off bolt will ease installation into rail channel. 2) Slide the clamp flush to the module with the top lip of the mid clamp over the top edge of the module frame. Install Note: Take care to avoid having wires pinched between modules and rails, as this can lead to system failure and be dangerous. 4) Tighten hardware.
Module Installation snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack Adjustable End Clamp 1) Snap the channel nut into the top channel of the rail. Install Note: Adjustable End Clamps require extra rail to ensure that channel nut is fully engaged. 2) Slide the clamp flush to the module with the top lip of the end clamp over the top edge of the module frame. Install Note: Take care to avoid having wires pinched between modules and rails, as this can lead to system failure and be dangerous.
Module Installation snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack Universal End Clamp 1) Slide the preassembled Universal End Clamp (UEC) into the end of the rail. 2) Lift the module and slide the clamp far enough under the module to pass the lip of the bottom edge of the module frame. Install Note: Take care to avoid having wires pinched between modules and rails, as this can lead to system failure and be dangerous. 4) Install end cap to finish.
Rail Finishing snapnrack.com Required Tools ò Reciprocating Saw or Portable Band Saw Materials Included - Rail Cutting Tool and Rail End Cap q (1) SnapNrack Rail Cutting Tool w (1) SnapNrack Ultra Rail End Cap q w 1 9/16" 6" 4 3/8" 1 5/8" FOR 1 1/2" 1/16" Dimensioned Rail Cutting Tool Dimensioned Ultra Rail End Cap Install on standing metal seam roofs Application Note: that the seam clamp fits over. Use to cut rail flush to module frame when using Universal End Clamps (UEC).
Rail Finishing snapnrack.com INSTALLATION INSTRUCTIONS 1) Slide the Rail Cutting Tool over the end of the rail and place it so that the upper lip is safely covering the edge of the module (optional). 2) Use the reciprocating saw or band saw to cut off the end of the rail (optional). 4) Insert SnapNrack Ultra Rail End Cap into the cut end of the rail to create a flush finish to the array. 30 3) Remove the Cutting Tool from the rail (optional).
Wire Management snapnrack.com Required Tools ò Reciprocating Saw or Chop Saw (Rail Cover) ò Socket Wrench (Wire Clamp) ò 1/2” Socket (Wire Clamp) Materials Included - Rail Cover q 48" (1) SnapNrack 48” Rail Cover Install on standing metal seam roofs Application Note: that the seam clamp fits over. Install to protect any conductors that are exposed to sunlight that are not approved for use in UV light.
Wire Management snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack 48” Rail Cover 1) Measure the length of the SnapNrack 48” Rail Cover that is needed. 2) Cut the rail cover to length. 4) Snap Rail Cover into place, enclosing all conductors inside of rail channel. Install Note: SnapNrack Rail Cover is designed to stay in place once installed, use a flat blade screw driver if it needs to be relocated or removed. 32 3) Place all electrical conductors in the bottom of the rail channel.
Wire Management snapnrack.com INSTALLATION INSTRUCTIONS SnapNrack Wire Retention Clip 1) Place all electrical conductors in the bottom of the rail channel. 2) Install the Wire Retention Clip by snapping it into place on the rail. SnapNrack 4-Wire, Trunk Cable, or Universal Wire Clamp 1) Snap Wire Clamp into top or side rail channel. 2) With Wire Clamp loose, place conductors or cables in slots. 3) Tighten Wire Clamp with 1/2” socket, ensure cables and conductors are aligned in the clamp slots.
MLPE Installation snapnrack.com e Required Tools ò Torque Wrench q ò Socket Wrench ò 1/2” Socket w Materials Included - MLPE Rail Attachment Kit q (1) 5/16” X 1-1/2” X 0.
MLPE Installation snapnrack.
MLPE Installation snapnrack.com INSTALLATION INSTRUCTIONS - MLPE RAIL ATTACHMENT 1) Snap the SnapNrack MLPE Rail Attachment Kit channel nut into the desired location on the rail where the microinverter will be installed. 2) Install the microinverter mounting plate onto the bolt of the MLPE Rail Attachment Kit, ensuring that the large fender washer is between the rail and mounting plate. 3) Tighten hardware. Install Note: MLPE Attachment Kits are approved for bolt lengths between 1” and 1-1/2” long.
MLPE Installation snapnrack.com INSTALLATION INSTRUCTIONS - SOLAREDGE FRAME MOUNT 1) Locate the SolarEdge optimizer with Frame-Mounted Module AddOn at a location on the module frame that will not interfere with the SnapNrack rail. 2) Install the optimizer mounting plate onto the module frame and tighten hardware. 3) Connect the module leads to the input connectors on the optimizer.
Grounding Specifications snapnrack.com MID CLAMP ASSEMBLY System Bonding Methods q SnapNrack Mid Clamp w SnapNrack Adjustable End Clamp e SnapNrack Ultra Rail Splice SS BONDING PIN MODULE FRAME RAIL CHANNEL NUT SS BONDING CLIP (2 TOTAL) RAIL NOTE: Note: SnapNrack module clamps contain a SnapNrack Channel Nut with integral bonding pins in assembly to properly bond the system (except Universal End Clamps).
Grounding Specifications snapnrack.com Ilsco Lay-in Lug Assembly SNAPNRACK ULTRA SERIES RAIL #10 NUT SS WITH STAR WASHER ILSCO GBL-4DBT GROUND LUG #10 BOLT SS COPPER WIRE, TYP.
Grounding Specifications snapnrack.
Grounding Specifications snapnrack.com INSTALLATION INSTRUCTIONS - SNAPNRACK GROUND LUG 1) Snap the SnapNrack Ground Lug into the rail channel on one rail per module row. Install Note: SnapNrack Ground Lug may be used in side or top channel, and may be rotated 90 degrees relative to slot to facilitate running copper across top of rails. 2) Place grounding conductor into slot underneath split ring washer. 3) Tighten all hardware.
Grounding Specifications snapnrack.com Ultra Rail has been tested with the following UL Listed modules: The Ultra Rail System employs top-down clamps which have been evaluated for frame-to-system bonding, at specific mounting torques and with the specific modules listed below. The system has been assessed to a maximum Over-Current Device (OCD) protection level of 20 amps. The UL file number is included in parentheses below.
Grounding Specifications snapnrack.
Mechanical Loading Specifications snapnrack.
Mechanical Loading Specifications snapnrack.com ET Solar: Models ET-P660XXXBB where XXX is 200 to 265; ET-P660XXXWB where XXX is 200 to 265; ET-P660XXXWW where XXX is 200 to 265; ET-P660XXXWWG where XXX is 235 to 265. Hanwah Q Cells: Q.Pro BFR-G4-XXX where XXX is 205 to 295. Q.Pro BFR-G4.1-XXX where XXX is 245 to 295. Q.Plus BFR-G4XXX where XXX is 255 to 265. Q.Plus BFR-G4.1-XXX where XXX is 270 to 280; Q.PEAK-G3.1 XXX and Q.PEAK BLK-G3.1 XXX where XXX is 270 to 325; Q.PLUS BFR-G3.
