Polar Bear - Model East/West - Flat Roof Mounting System Brochure

panelclaw.com QIMS.E339731 Polar Bear FR Gen II QIMS2.E339731 Module Mounting Attachment Polar Bear® East/West for 10 Degree Installation Manual 9910022 Rev A Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 2 Revision History Rev ECO # Date Description of Changes Approved By A C00270 21-MAY-13 INITIAL RELEASE CA Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 3 Table of Contents Revision History ............................................................................................................................................ 2 Table of Contents .......................................................................................................................................... 3 Introduction .................................................................................................................................................. 4 Document Objective ..................................................................................................................................... 4 Polar Bear East/West 10 Degree Components ............................................................................................. 5 Required Tools .............................................................................................................................................. 6 Installation .................................................................................................................................................... 6 Step 1: Mark Array Perimeter and Assemble Supports ................................................................................ 6 Step 2. Lay Out Supports and Add Ballast .................................................................................................... 7 Step 3. Attach Claws to Module ................................................................................................................. 11 Step 4. Mount Modules to Supports .......................................................................................................... 12 East/West Support ...................................................................................................................................... 13 Step 5. Electrical Grounding ....................................................................................................................... 14 Technical Support ....................................................................................................................................... 16 Appendix A: Alternate Claw Attachment to Module .................................................................................. 17 Appendix B: Safety ...................................................................................................................................... 23 Appendix C: Spacer Sticks ........................................................................................................................... 25 Appendix D: Electric Grounding (UL 2703 not applicable).......................................................................... 26 Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 4 Introduction Polar Bear East/West 10 Degree is designed to maximize array construction speed and minimize construction risk. Polar Bear’s patent pending, innovative, streamlined construction features: ? Just two major components plus only one nut and bolt size ? Several labor saving factory-installed features ? A modular, adaptable design with a single-module tilt-up feature The Polar Bear system has been extensively tested, undergoing individual component finite element analysis, computational fluid dynamics modeling, static load modeling, and wind tunnel testing. All testing has been independently conducted by third parties and provided to PanelClaw, Inc. (“PanelClaw”). PRIOR TO COMMENCING THE INSTALLATION OF THE POLAR BEAR EAST/WEST 10 DEGREE PHOTOVOLTAIC MOUNTING SYSTEM, IT IS IMPERATIVE THAT YOU FIRST READ THE SAFETY PROVISIONS ATTACHED ON Appendix B HERETO. Document Objective This installation manual has been put together to assist in the proper steps required to build a Polar Bear East/West 10 Degree flat roof mount system array. The manual covers the order of assembly for the construction of the roof mount array and contains detailed notes and tips for a successful assembly. PRIOR TO INSTALLATION, READ THE SAFETY PROVISIONS ATTACHED ON APPENDIX B AND REVIEW THE INSTALLATION MANUAL IN ITS ENTIRETY. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 5 Polar Bear East/West 10 Degree Components This is a parts list for a ballasted Polar Bear® East/West 10 Degree installation not requiring mechanical attachment. Please refer to the PanelClaw Roof Connector Installation Manual, available at www.panelclaw.com, for instructions on mechanical attachment of the system. Major Components ? EW Support ? Low Support ? Standard Claw Other Materials ? Fastener Kit ? Ballast Block (Customer supplied) ? EW Support Supports modules at the high side of the tilt and holds up to (6) 4x8X16” ballast. Options May come with preinstalled recycled rubber roof protection pad and or grounding lug. May be constructed of either aluminum or G90 steel. ? Low Support Supports modules at the low side of the tilt and holds up to (2) 4x8x16” ballast. Options May come with preinstalled recycled rubber roof protection pad and or grounding lug. May be constructed of either aluminum or G90 steel. ? Standard Claw Includes pre-installed fastener to mount claw to module frame, 3/8-16 x 1.0”L. ? Fastener Kit Stainless Steel 3/8-16 x 1.25” screw and 3/8-16 serrated flange nut to attach a module with claws to supports. ? Ballast Block Customer supplied solid cap concrete roof paver. Block should conform to ASTM C 1491-03 standard. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 6 Required Tools Tools Required 9/16” Wrench or socket Installation Polar Bear East/West 10 Degree can be installed in 5 easy steps. Step 1: Mark Array Perimeter and Assemble Supports No tools are required for Support assembly. 1. Mark the array perimeter using a chalk line or similar method. See site’s Ballast Layout Drawing provided by PanelClaw for array dimensions. 2. Assemble the thru-hole flange and slotted flange units to form the EW Support. The slotted flange unit has hemlocks that will encapsulate the thru-hole unit. Lower the hemlocks of the slotted unit over the thru-hole unit as seen in Figure 1 below. Figure 1 EW Support Assembly Thru-hole Flange Slotted Flange Hemlocks Assembled Support Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 7 3. Low Supports are assembled as shown in Figure 2. Note: When the Supports are assembled correctly, the portions of the roof protection pad that protrude from each half of the Support tray will be aligned. Figure 2 Low Support Assembly Step 2: Lay Out Supports and Add Ballast Deploy the Supports along the marked array perimeter. 1. Ensure module Supports are properly spaced in the array using the Spacer Sticks provided. 2. Remove the hardware from each Spacer Stick to set the correct length. 3. Reference the Ballast Layout Drawing to determine the proper stick length. The “Project Details” section of the Ballast Layout will contain lengths for the longer, slotted Spacer Stick – A, and Spacer Stick -F with PEM® studs. 4. The lengths indicated in the Ballast Layout reflect the length between the two slots on the Spacer Stick - A and between the center of each of the two PEM studs on the Spacer Stick - F. 5. Set the Spacer Sticks to the correct length and then replace and tighten the hardware to secure the Spacer Sticks in position. Note: The Spacer Stick lengths can also be established by using the procedure found in Appendix C. Note correct pad orientation Spacer Stick - F 3/8” Studs Spacer Stick - A Slots Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 8 6. Pick a starting corner on the North West end of the array and place Supports as shown below in Figure 3. The first East West support should be laid out with the high end to the West and the low end to the East 7. Each additional East West Supports will be laid out with the low end to the West and high end to the East (Figure 4, Figure 5). PanelClaw recommends starting the array in a corner with low complexity and moving outwards in a direction that best suits the individual array you are building (e.g. rows and columns with the least number of interruptions/breaks). Note: Supports without the optional integrated roof protection pad ensure that a proper roof protection pad is installed. Center the pad under the Support such that the roof protection pad extends beyond the edge of the Support by an equal amount on all sides (E-W and N-S). 8. Use the properly configured Spacer Stick - A (the longer stick) to position the Supports apart in the North South direction. Place the notch in the Spacer Stick - A, over the low end of the Support at the edge of the array and position the Support directly to the North or South (depending on build direction) so that the notch at the other end of the spacer stick fits over the low end of the adjacent Support. 9. The distance between Supports in the East/West direction is set using the Spacer Stick - F. The 3/8” studs in the Spacer Stick are placed in the proper Claw mounting hole of a Low Support and an East West support to properly space out supports. This process can be continued to lay out the remainder of the array. To determine the proper holes to use with the Spacer Stick on the high and low end of the Support for this array, please refer to the Ballast Drawing (typical examples shown in Figure 4, Figure 5 and Figure 6). Figure 3 Support Positioning West Side Note Orientation Note Positioning West Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 9 Figure 4 Completed Support Assembly West Side Figure 5 Support Positioning Middle Note Orientation Note Positioning West Position 1 (Standard or Multi-piece Claws) or 2 (Long Claw) on High Side (Note Supports Orientation) Position “A” on Low Exterior Side (East Or West Side) Position “A” (Standard or Multi-piece Claws) or “B” (Long Claw) (Note Support Orientation) Position “D” (Note Support Orientation) West Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 10 Figure 6 Completed Support Assembly Middle 10. Place ballast on each support based on Ballast Layout Drawing. Each Support will accommodate up to six Solid Cap Concrete blocks as ballast (not provided). Each block has nominal dimensions of 4” x 8” x 16” and nominal weight of 26 lb. (11.8 kg). Blocks of various weights may be used in advance consultation with PanelClaw’s engineering department. Various possible Ballast Block configurations are shown below (Figure 7). Note: Blocks should not be stacked on top of each other. Position 1 (Standard or Multi-piece Claws) or 2 (Long Claw) on High Side Position “A” (Standard or Multi-piece Claws ) or “B” (Long Claw) (Note Support Orientation) Position “D” (Note Support Orientation) Position “D” (Note Support Orientation) West Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 11 Figure 7 Ballast Layout Step 3: Attach Claws to Module PanelClaw offers three Claw options to accommodate different frame types, Standard (Claw I), Multi-piece (Claw III), and Long (Longitudinal). The following directions are for the Standard Claw (Claw I), for Multi-piece and Long Claw mounting instructions please see Appendix A. 1. Place a PV module face down on protected work surface and place a Claw over the module frame flange on the short side of the module Two-block configuration Three-block configuration Six-block configuration Five-block configuration Four-block configuration One-block configuration (Low Support) Along North and South edges only Two-block configuration (Low Support) Along East and West edges only Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 12 2. Slide to the corner and tighten the 3/8-16 x 1.0” 18-8 hex head cap screw between 18 and 20 ft-lb (24.4-27.1 N-m). Ensure that the Claw is seated up against the flanges of both the long and short sides of the module as shown in Figure 8 below. 3. Each module must be fitted with the appropriate Claws. The module is now ready to be attached to the Supports. 4. At this point, it is a good time to prepare the module cables for connection per the module manufacturer’s specifications and install the module grounding mechanism (not included) per the module manufacturer’s specifications if necessary (see Step 5: Electrical Grounding, to determine array grounding requirements). Figure 8 Claw Attachment Step 4: Mount Modules to Supports Begin attaching modules to Supports moving from North to South (or South to North) starting at the Southwestern (or Southeastern) most corner of the array and moving East/West as each row is completed. For the steps below, assume the Southwestern most corner is the starting point. 1. Attach the module to the inside of the first two Low Supports, by inserting a 3/8-16 x 1.25” 18-8 hex head cap screw through the hole in the Claw and the Support. Please refer to the Ballast Layout Drawing for the proper hole choice, “A” or “D” (default) or “B” and “D” (long claw) on the low Support. Ensure that the hex head cap screws are inserted into the East/West Support mounting holes so the threaded end of each hex head cap screw faces the next Support to be installed (to the North or South). A 3/8-16 serrated flange nut should then be finger tightened on the Eastern (or Western)-most Support only to initially secure the module (Figure 9). Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 13 Figure 9 Attach Module to Low Support 2. Tilt the module back and attach the Claws to the high end of the East/West Support by inserting a 3/8-16 x 1.25” 18-8 hex head cap screw through the hole in the Claw and the Support (Figure 10). Refer to the Ballast Layout Drawing for the proper hole choice, “1” (default) or “2” (long claw) on the high end of the Support. 3. Ensure that the hex head cap screws are inserted into the Support mounting holes so the threaded end of each hex head cap screw faces the next Support to be installed (to the East) (Figure 10 and Figure 11). Figure 10 Tilt Module to Attach East/West Support PV Module Claw High End East/West Support Exterior Low Support Serrated Flange 3/8-16 Hex Nut 3/8-16 x 1.25 Hex Head Cap Screw Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 14 Figure 11 Tilt Module to Attach to East/West Support 4. Secure Claws to Supports using the 3/8-16 serrated flange nuts. The recommended torque is 28-30 ft-lb (37.9-40.7 N-m). 5. Continue building the array from North to South (or South to North) by bringing the next module into place. a. The bolts on the Northern (or Southern) sides of the array are already in place from the prior module mounting. b. Add bolts to the claws and supports that do not have bolts. c. Secure the bolt connecting two claws and a Support using the 3/8-16 serrated flange nuts. d. At the last module in a row or column, ensure that the bolt attaching one claw and support are secured using the 3/8-16 serrated flange nuts. e. Connect the module to module wiring. Repeat this process until all modules are mounted. Step 5: Electrical Grounding Please consult with national and local building code(s) for complete grounding requirements for your installation. The Polar Bear mounting system is UL and ETL listed to UL 2703 (Rack Mounting Systems and Clamping Devices for Flat-plate Photovoltaic Modules and Panels). Polar Bear mounting systems enable installers using modules included in PanelClaw’s UL 2703 listings to quickly and easily establish UL/ETL-certified electric bonds between all connected array components, including modules and mounting system components, without the use of additional grounding devices, e.g. ground lugs and copper wire. Multiple strings with a combined fuse rating of up to 125 amps can be grounded via a single ground lug acting as a Grounding Electrode Conductor (GEC). When grounding devices are installed according with the approved methodology and capacity below, the connections described above meet all the requirements outlined in NEC 690.43. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 15 All PanelClaw module mounting attachments (“Claws”) are certified as recognized components under UL 2703 for module-to-module and module-to-mounting system electric bonding. For projects using modules not currently included in PanelClaw’s UL 2703 listings, additional approvals from the module manufacturer and the relevant permitting authority may be necessary to utilize the UL 2703 electric bonding and grounding method below. Additional information regarding UL 2703 and the specific modules included in PanelClaw’s UL and ETL listings can be found in the PanelClaw UL & ETL Overview (UL 2703) document (available at www.panelclaw.com). For modules that are listed, please follow the instructions. For unlisted and unapproved modules follow the grounding instructions in Appendix E. Electrical Grounding Instructions – UL2703 Compliant Supports within the array are required to be electrically bonded to other DC grounding paths via the use of a compatible UL 467 listed grounding device acting as a GEC and either #8 or #6 AWG Cu bonding jumpers. 1. First determine the quantity of strings that a single bonding jumper connection can accommodate based on the module series fuse rating and bonding jumper size (Table 1). Note: Verify that all devices used in connecting this bonding jumper can accommodate the conductor being used. Table 1 Strings per Bonding Jumper 2. Once the quantity of strings per bonding jumper has been determined, a UL 467 listed grounding device must be attached to one Support within that group of strings. PanelClaw provides Supports with a multi-purpose tab to which a grounding device/lug can be attached (Figure 12). The multi-purpose tab has a hole that is .198” - .208” in diameter. Module Series Fuse Rating / DC String Fuse Rating (A) Size of Bare Cu Bonding Jumper (AWG) #8 #6 Allowable Ampacity of Conductor (A) 90 125 Number of Strings per Bonding Jumper 10 9 12 15 6 8 20 4 6 25 3 5 30 3 4 Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 16 Multi-purpose Tab NOTE: In some cases a grounding device/lug can come pre-installed, in this case, ensure that the pre-installed grounding device/lug is listed to UL 467 and can accommodate the size of conductor being installed. In an array that requires multiple bonding jumpers to satisfy the capacity requirements, each bonding jumper should be located and installed on a Support within the group of strings which will be grounded by that jumper. Figure 12 Install Grounding Device to Multi-purpose Tab 3. Attach a grounding device/lug to the support tab per the grounding lug/device instruction manual. 4. Once a grounding device/lug has been attached to the Support, a copper bonding jumper must be installed (as described in the grounding device/lug installation manual), from an acceptable DC grounded location outside of the array. 5. Verify every independent array section includes at least one grounding device/lug. Technical Support To contact PanelClaw Customer Technical Support, call +1 978.688.4900 or email technicalsupport@panelclaw.com. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 17 Appendix A: Alternate Claw Attachment to Module Long Claw (Longitudinal Claw) The Long Claw is used for PV modules that are not compatible with flange clamp style Claws. The Long Claw attaches at the module mounting holes. Please see the module manufacturer’s installation guide for screw torque specifications. Figure 13 Long Claw Detail 1. Place a PV module face down on a protected work surface ( 2. Figure 14). Figure 14 Place Module Face Down Module Mounting Holes* Module Grounding Holes* (when applicable) Support Mounting Tabs Module Drainage Holes* (when applicable) Module Flange Hems *Hole quantity and locations will vary per module Long Side Flange Short Side Flange Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 18 3. Orient a Long Claw parallel to the long side of the module. Ensure that the module flange hems are facing down and the support mounting tabs are facing outward. Once oriented, lower the Long Claw until the ends rest on the short side flanges of the module (Figure 15). Figure 15 Orient and Lower Long Claw 4. Continue by sliding the Long Claw toward the long side flange of the module until the hems slide past the module flange and the module mounting holes are aligned (Figure 16). Figure 16 Lower Long Claw onto Short Side Flanges 5. Secure the Long Claw with the hardware provided, ensuring that the bolt is inserted from the underside of the flange and facing up (Figure 17 and Figure 18). Torque the hardware to the module manufacturer’s specifications. Module Flange Hems Down Support Mounting Tabs Out Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 19 Figure 17 Install Hardware Figure 18 Cross Sectional Detail of Installed Long Clamp Long Claw Long Side Flange Bolt Nut Top Side of Module Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 20 6. Repeat Steps 1 through 4 for the other side of the module (Figure 19). The module is now ready to be attached to the Supports. At this point, it is a good time to prepare the module cables for connection per the module manufacturer’s specifications and install the module grounding mechanism (not included) per the module manufacturer’s specifications if necessary (see Step 5: Electrical Grounding, to determine array grounding requirements). Figure 19 Completed Long Claw Installation 7. Attach the module to the inside of the low end of the first two Supports by inserting a 3/8-16 x 1.25” 18-8 hex head cap screw through the hole in the Claw and the low Support. Please refer to the Ballast Layout Drawing for the proper hole choice, “A”, “B” or “D”. Ensure that the hex head cap screws are inserted into the Support mounting holes so the threaded end of each hex head cap screw faces the next Support to be installed. A 3/8-16 serrated flange nut should then be finger tightened on the array perimeter Support only to initially secure the module (Figure 20). Tilt the module back and attach the Claws to the high end of the Supports by inserting a 3/8-16 x 1.25” 18-8 hex head cap screw through the hole in the Claw and the Support (hole marked “2”). Ensure that the hex head cap screws are inserted into the Support mounting holes so the threaded end of each hex head cap screw faces the next Support to be installed (Figure 20). Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 21 Figure 20 Module Attachment to Support 3/8-16 Serrated Flange Nut 3/8-16 x 1.25 Hex Head Cap Screw EAST Mounting Hole Marked “2” Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 22 Multi-piece Claw (Claw III) The Multi-piece Claw is used when the PV module specified does not allow short-side PV frame flange mounting. For proper attachment, place a Claw over the module frame flange on the long side of the module; slide to the corner, and tighten the 3/8-16 x 1.25” 18-8 hex head cap screw between 18 and 20 ft-lb (24.4-27.1 N-m). Ensure that the “C” shaped portion of the Claw is seated up against the flange on the long side of the module and that the “L” shaped piece of the Claw is seated over the module frame, with the tab flush against the short side of the module as shown in the image below. Figure 21 Multi-piece Claw Detail Contact PanelClaw Customer Technical Support for additional information about alternative Claws. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 23 Appendix B: Safety General Installation Safety with PanelClaw Products: Safety is an essential part of every photovoltaic (PV) installation and every construction site. It is imperative to plan ahead for any safety concerns and hazards to promote safe work practices during installation. This section does not claim to address or support all safety concerns that may arise during the installation of PanelClaw mounting systems or any other aspect of the work being performed. Before beginning work, installers should refer to all local and federal safety, health, and regulatory requirements to assure compliance. Refer to OSHA Part 1926 and its related Subparts for federal construction related regulations and standards. The subsections below outline some of the obvious / major hazards that could exist during the installation of PanelClaw products, and are divided to bring a level of clarity to such hazards. Some sections do not apply to all PanelClaw product lines and such exclusions are noted within each section. Electrical Hazards: PanelClaw products are purely mechanical and do not contain any electrically live parts. When a photovoltaic module is exposed to sunlight it is electrically live and cannot be turned off. As soon as modules are installed using a PanelClaw system, an electrical shock hazard is present. All personnel on site should coordinate to ensure that such electrical hazards are clearly communicated. It is advised, at a minimum, that all personnel utilize caution and proper Personal Protective Equipment as outlined in that section. Only electrically qualified personnel should perform PV module installation. Refer to OSHA Part 1926 Subpart K – Electrical and NFPA 70E for additional information. Fall Hazards: This section only applies to Grizzly Bear®, Polar Bear®, and Kodiak Bear™ products installed on locations six feet or higher above grade. Proper fall protection should be in place at all work sites. There are many fall protection solutions readily available to help reduce exposure to fall hazards. These may include personal fall arrest systems, safety nets, guardrails, and flagged setbacks from all roof edges as outlined in OSHA Part 1926 Subpart M – Fall Protection. Trip Hazards: All PanelClaw arrays have elevated components that are installed above grade or above a roof surface. Such hazards should be identified and caution should be taken to avoid tripping over such components. Refer to the Fall Hazards section specifically if working with the Grizzly Bear, Polar Bear, and Kodiak Bear product lines. Make sure to pick up and not drag your feet when working on site, and always pay attention to your path of movement to note any obstructions that could create a trip hazard. Lifting Hazards: The PanelClaw installation process involves lifting of heavy items that could lead to personal injury and damage to property. All personnel should be trained in the proper procedures for manual lifting. Evaluate an object’s size and weight prior to lifting, and follow these general guidelines: 1. Assess the lift and know the object weight. 2. Bend at the knees and get a good grip. 3. Keep back straight and lift straight up with legs without twisting. It is important to lift with the legs and not the back. 4. If an object is too large or heavy, ask for help and do not attempt to lift by yourself. In the case that mechanical assistance (e.g. crane, forklift, etc.) is required to complete the lifting operations, all machine operators of such devices should be licensed and trained. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 24 Material Handling: All PanelClaw parts and components are made of aluminum and steel alloys and utilize stainless steel assembly hardware. These materials are considered non-toxic and require no special handling procedures. Metal components may have sharp edges, so be sure to handle with care and utilize proper personal protection equipment, especially gloves, during handling. Refer to OSHA Part 1926 Subpart H – Materials Handling, Storage, Use, and Disposal for additional information. Personal Protective Equipment (PPE): All personnel should utilize and implement proper PPE per OSHA requirements. Refer to OSHA requirements for proper use and implementation of PPE. The following items are suggested as a minimum to avoid injury based on the installation procedure outlined in this manual: 1. Appropriate work clothing 2. Electrically insulated hard hat 3. Protective eyewear 4. EH rated safety boots 5. Gloves 6. High-visibility safety vest 7. Hearing protection If any PPE appears to be defective, stop the use of such equipment immediately, and ensure it is replaced before work continues. Refer to OSHA Part 1926 Subpart E – Personal Protective and Life Saving Equipment for additional information. Hand and Power Tools: Access to all hand and power tools should be regulated and controlled at all times on site to prevent improper use and related injuries. When not in use, all equipment should be stored in a secured location. Only personnel who have been properly trained in the safe operation of any potentially dangerous tool should be allowed access. All required tools to perform the installation of PanelClaw racking are outlined in the installation procedure. All tools should be inspected daily and before use by the operator. If any tool appears to be defective, stop the use of such equipment immediately, and ensure it is replaced before work continues. Electrical power tools should follow proper lock-out tag-out procedures per OSHA requirements. Refer to OSHA Part 1926 Subpart I – Tools – Hand and Power for additional information. Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 25 Appendix C: Spacer Sticks To assist in proper row and module spacing, PanelClaw makes Spacer Sticks available. These tools are easily employed to ensure module supports are properly spaced in the array. To assemble the Spacer Sticks please follow the directions below. a. Initial Claw Attachment to Module (One Module Only) Place a PV panel face down on protected work surface and place a Claw over the module frame flange on the short side of the module; slide to the corner and tighten the 3/8-16 x 1.0” 18-8 hex head cap screw between 18 and 20 ft-lb (24.4-27.1 N-m). Ensure that the Claw is seated up against the flanges of both the long and short sides of the module as shown in Fig. 16 below. Each module must be fitted with four (4) Claws. This process will be used later for attaching Claws to all modules. b. Spacer Stick - A To set the Spacer Stick -A to the correct length, first locate and remove the hardware from the longer, slotted spacer stick. Next, measure the distance between the protruding ends of the Claws attached to the long side of the module (North-South) and add 1/8”. Then set the Spacer Stick - A so that the slots in each end are at this distance, Fig. 3 above. c. Spacer Stick -F: Locate and remove the hardware from the shorter adjustable spacer stick with 3/8” studs. Position, reinsert, and tighten locking hardware with the shorter spacer stick in the mounting holes of the Claws on the short side (East-West) of the module. Figure 22 Claw Attachment 3/8” Studs East-West North-South Slots Spacer Stick - A Spacer Stick - F Polar Bear East/West 10 Degree Installation Manual 9910022 Rev A 26 Appendix D: Electric Grounding (UL 2703 not applicable) A Tyco solid wire grounding assembly, part number 2106831, manufactured by Tyco Electronics Corporation, has been pre-installed on each Support. As you run the copper wire necessary to ground each module (not provided), ensure the same copper wire is run through every Tyco solid wire grounding assembly and secured per Tyco Electronics Corporation, LLC specifications (www.te.com). Tighten each Tyco solid wire grounding assembly to torque of 45 in-lb (5.08 N-m), as in Figure 23 below. Please note that the pre-attached Tyco wire grounding assembly has been tightened to 25 in-lb (2.82 N-m). Figure 23 Electrical Grounding Copper Wire Tyco Lug