SnapNrack S100 Bedienungsanleitung

| SnapNrackTM

SERIES 100

Roof MounT InSTallaTIon Manual

| i

SERIES 100 ROOF MOUNT

CODE COMPLIANT

INSTALLATION

MANUAL |2012

Table of Contents

1. INTRODUCTION....................................................................................................................................................3

1.1 OVERVIEW OF THE SNAPNRACK SYSTEM..........................................................................................3

1.2 OVERVIEW OF THIS MANUAL................................................................................................................4

1.3 YOUR RESPONSIBILITY AS INSTALLER ................................................................................................4

1.4 SUPPORT.......................................................................................................................................................5

2. PREPARE FOR THE INSTALLATION...............................................................................................................6

2.1 IDENTIFY TYPE OF ROOF.........................................................................................................................6

2.2 IDENTIFY SNAPNRACK COMPONENTS...............................................................................................6

2.3 OBTAIN INSTALLER SUPPLIED TOOLS AND MATERIALS ...............................................................9

2.4 SURVEY THE SITE .......................................................................................................................................9

2.5 LAY OUT SYSTEM ON THE ROOF........................................................................................................10

3. FLUSH MOUNT ON COMPOSITION ROOFS (USING L-FEET)...........................................................13

3.1 INTRODUCTION .......................................................................................................................................13

3.2 LOCATE ATTACHMENT POINTS...........................................................................................................14

3.3 DRILL PILOT HOLES.................................................................................................................................14

3.4 SECURE BASE.............................................................................................................................................15

3.5 INSTALL FLASHING..................................................................................................................................15

3.6 ATTACH L-FOOT........................................................................................................................................16

4. FLUSH MOUNT ON OTHER ROOF TYPES (USING STANDOFFS)....................................................17

4.1 INTRODUCTION .......................................................................................................................................17

4.2 DETERMINE TYPE AND SIZE OF ATTACHMENT AND FLASHING..............................................18

4.3 STANDOFF BASE OPTIONS.................................................................................................................. 20

4.4 LOCATE ATTACHMENT POINTS.......................................................................................................... 20

4.5 MARK ATTACHMENT POINTS.............................................................................................................. 20

4.6 DRILL PILOT HOLES................................................................................................................................ 20

4.7 SECURE THE BASE....................................................................................................................................21

4.8 ATTACH STANDOFF AND INSTALL FLASHING............................................................................... 22

5. INSTALL ON OTHER TYPES OF ROOF PENETRATIONS .................................................................... 22

5.1 INSTALLATION WITH HANGER BOLTS.............................................................................................. 22

5.2 DETERMINE LENGTH OF HANGER BOLT......................................................................................... 23

5.3 LOCATE & MARK ATTACHMENT POINTS......................................................................................... 23

5.4 DRILL PILOT HOLES AND INSERT HANGER BOLTS....................................................................... 23

5.5 FASTENING HANGER BOLT CLAMP ...................................................................................................24

5.6 INSTALLATION WITH CORRUGATED ROOF BLOCK ......................................................................24

5.7 LOCATE, MARK & DRILL ATTACHMENT POINTS ........................................................................... 25

5.8 INSTALL CORRUGATED ROOF BLOCK.............................................................................................. 25

5.9 INSTALLATION WITH STANDING SEAM CLAMPS......................................................................... 25

5.10 IDENTIFICATION OF SEAM TYPE........................................................................................................ 26

5.11 DETERMINE CLAMP LAYOUT AND HARDWARE........................................................................... 26

5.12 INSTALL CLAMP AND HARDWARE.................................................................................................... 26

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SERIES 100

Roof MounT InSTallaTIon Manual

6. TILT MOUNT (USING STANDOFFS AND EXTENSIONS) .....................................................................27

6.1 INTRODUCTION .......................................................................................................................................27

6.2 DETERMINE TYPE OF TILT ASSEMBLY...............................................................................................27

6.3 SHALLOW TILT KITS.................................................................................................................................27

6.4 FULL TILT KITS.......................................................................................................................................... 28

6.5 INSTALLING ON L-FEET ......................................................................................................................... 30

7. INSTALL RAILS.................................................................................................................................................... 30

7.1 SNAP IN CHANNEL NUTS ..................................................................................................................... 30

8. INSTALL RAIL SPLICES .................................................................................................................................... 30

8.1 SNAP IN SPLICE INSERT......................................................................................................................... 30

9. LEVEL RAILS .........................................................................................................................................................31

9.1 OVERVIEW...............................................................................................................................................................31

9.2 ADDITIONAL LEVELING FOR L-FOOT MOUNTED RAILS ............................................................31

9.3 ADDITIONAL LEVELING FOR STANDOFF MOUNTED RAILS ......................................................32

10. INSTALL MODULES ON RAILS ......................................................................................................................33

10.1 PREPARE CLAMPING HARDWARE ......................................................................................................33

10.2 SET FIRST MODULE ................................................................................................................................ 34

10.3 CONNECT WIRING.................................................................................................................................. 35

10.4 CONNECT GROUNDS............................................................................................................................. 36

10.5 TRIM RAILS................................................................................................................................................ 36

11. FINAL CHECK....................................................................................................................................................... 36

11.1 CHECK ALL BOLTS................................................................................................................................... 36

11.2 CHECK WIRES AND GROUNDING...................................................................................................... 36

11.3 INSTALL END CAPS..................................................................................................................................37

12. ARRAY EDGE SCREEN.......................................................................................................................................37

12.1 EDGE SCREEN OVERVIEW......................................................................................................................37

12.2 MEASURE ARRAY PERIMETER..............................................................................................................37

12.3 INSTALL ARRAY EDGE SCREEN CLIPS ................................................................................................37

12.4 TRIM AND INSTALL EDGE SCREEN.....................................................................................................37

13. APPENDIX............................................................................................................................................................. 38

13.1 ENGINEERING CERTIFICATION LETTER............................................................................................ 38

13.2 RAIL SPAN TABLES...................................................................................................................................47

13.3 SNAPNRACK WARRANTY ..................................................................................................................... 78

| SnapNrackTM

SERIES 100

Roof MounT InSTallaTIon Manual

| 3

1. Introduction

1.1 Overview of the SnapNrack System

SnapNrack Series 100 PV Mounting System oers a low prole, visually appealing, photovoltaic

(PV) module installation system. This innovative system simplies 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 specic installation site and will meet the local building code and the

International Building Code.

The SnapNrack installation system is a set of engineered components that can be assembled

into a wide variety of PV mounting structures. It is designed to be installed by qualied solar

installation technicians. With SnapNrack you will be able to solve virtually any PV module

mounting challenge.

Figure 1.0 - Placing modules on S100 standard rails installed on L-Feet

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SERIES 100

Roof MounT InSTallaTIon Manual

4 |

1.2 Overview of this Manual

This manual describes the installation procedures for standard roof mounting for common

photovoltaic (PV) arrays. It guides you through the correct procedures for mounting the

SnapNrack PV module racking system on the major types of roof structures and materials. It

also provides layout guidelines, installation tips and directions.

Review this entire manual before installing the SnapNrack system.

Throughout this manual you will see highlighted notes which will provide you with dierent

types of information:

4NOTICES indicate important information to help with the installation or to avoid

potential damage to the structure or components.

8 CAUTIONS indicate a potential for property damage, personal injury, or death.

For help with your installation, call SnapNrack technical support. Visit www.snapNrack.com

and click Contact in the top menu bar.

For information on Ground Mount installation procedures, refer to SnapNrack Ground Mount

Installation Manual. It can be downloaded from www.snapNrack.com

1.3 Your responsibility as installer

Comply with all applicable local or national building codes, including any that may supersede

this manual.

• MakesurethattheSnapNrackcomponentsandotherproductsareappropriateforthe

particular installation and the installation environment.

• Makesurethattheroof,itsrafters,connections,andotherstructuralmemberscan

support the array in compliance with all applicable code requirements.

• UseonlySnapNrackpartsandcomponents.

• Makesurethatlagscrewsorroofattachmentfastenersareproperlyandsecurely

attached to the roof rafters or structural members and that roof members are structurally

sound.

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Roof MounT InSTallaTIon Manual

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• Maintainthewaterproofintegrityoftheroof,includingtheproperuseofroong

sealant and selection of appropriate ashings for post type installations (see section 4

for ush-mount installations using standos and section 6 for tilted installations using

standos).

4Note: L-foot type mounting assembly includes ashing material.

• EnsuresafeinstallationofallelectricalaspectsofthePVarray.

8All installers working on any roof surface must always follow necessary and

applicable precautions for working in a rooftop environment including

maintaining a secure attachment to a regulation fall protection safety harness

that conforms to OSHA standards.

8 If it is raining, or if you anticipate any potentially dangerous conditions, do not

proceed with the installation.

8 All tools and equipment used on the roof should be secured to avoid falling object

hazards.

8 All equipment should be properly maintained and inspected prior to use.

8 Any exposed studs should be protectively capped to help avoid injury.

1.4 Support

For help with your installation, call technical support. Visit www.snapNrack.com and click

Contact in the top menu bar.

Figure 1.1 - SnapNrack.com

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SERIES 100

Roof MounT InSTallaTIon Manual

6 |

2.1 Identify type of roof

Roofs on residential buildings are constructed

primarily of three types of material: asphalt

shingles (commonly known as composition

shingles), tile or slate (which we will refer to as

tile), and wood or shake shingles (which we

will refer to as shake).

PV array installations on composition roof

surfaces using the SnapNrack ashed L-foot

components as described in section 3,

oers the quickest and easiest SnapNrack

installation solution.

Installations on tile or shake roofs, or thicker

composition roofs that exceed a typical

1/8-inch material thickness (often called

presidential composition), should not use

SnapNrack L-feet and should instead use

standos as described in section 4.

Installation of PV arrays tilted at an angle to

the roof surface is described in section 6.

4 Sometimes stainless steel hardware

has a tendency to seize up when it

is exposed to sunlight and gets hot.

To reduce the possibility of seizing,

apply lubricant to bolts, shade the

hardware prior to installation, and

avoid spinning on nuts at high

speed.

2.2 Identify SnapNrack

components

Make sure you have all the necessary

SnapNrack system components needed to

complete the installation.

2. Prepare for the installation

Figure 2.0 - Common System Components

SnapNrack Standard Rail

Universal End Clamp Ver1&2

Standard Rail Splice

Snap-in Channel Nut

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SERIES 100

Roof MounT InSTallaTIon Manual

| 7

L-foot assembly —base, L-foot,

stamped steel ashing

L-Foot Base

L-Foot

Stando assembly —

base and stando shaft

Stando Clamp

Stando base

Figure 2.1 - Common System Components - Cont.

Top-mount End Clamp Mid Clamp Rubber end cap

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SERIES 100

Roof MounT InSTallaTIon Manual

8 |

Fig 2.2 - Alternate SnapNrack Hardware

Corrugate Roof Block

Heavy Duty (HD) Stando and Base

Four-Hole Stando Base and Standard Stando

Standard Base Seam Clamp

Wide Base Seam Clamp

Hanger Bolt Clamp

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SERIES 100

Roof MounT InSTallaTIon Manual

| 9

2.3 Obtain installer supplied tools

and materials

Make sure you have all the necessary

additional hardware components, tools, and

other material that are needed to complete

the installation. These include:

• Appropriateroofashingsforstando

installations

• Lagboltsandwashersforroof

attachments

• Waterproofroongsealant(suchas

Rainbuster) in a color to match the color

of the roof

• ½-inchbox/openendwrench

• 3/8-inchratchetwrenchwith½-inch

socket and short extension

• 3/8-inchtorquewrench

• Powerdrillwith3/16-inchx6-inchand

12-inch drill bits for lag bolt pilot holes

• 5/32-inchAllenkeyforlevelingspacers

on standos

• Toolsforattachinggroundinghardware

• Reciprocatingsaw(suchasaSawzall

or miter box) with correct blade for

trimming non-ferrous metal rails

• Metallefornishingtrimmedrails

• Chalklineandgreasepens(intwo

or three dierent colors) for marking

mounting locations on the roof material

• Tapemeasure

• Flatprybar

• Structuralplansforthebuildingwhen

available

• SnapNrack Rail Cutting Guide (Optional)

2.4 Survey the site

• Measuretheroofsurfacesanddevelop

an accurate drawing of the roof and any

obstacles such as chimneys and roof

vents.

• Ifplansareavailable,checktomake

sure that the plans match the nal

structure.

• Reviewtheshadingpatternacrossthe

roof surface from the residence itself,

from adjacent structures, and from

other nearby features such as trees.

• Identifyanyroofaccessareasor

keep-out areas as required by the local

jurisdiction.

• Conrmroofconstruction,type,and

condition.

• Assessroofraftersize,material,and

span to conrm that the structure is

sound and can support the additional

load of the array.

• Identifyanyconstructionanomalies

that may complicate the process of

locating rafters from the roof surface.

Figure 2.3 UEC Rail Cutting Guide

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