Redland DuoPlain Manuale utente

SOLAR PV TILES

Installation Instructions for Redland DuoPlain Solar PV Tiles

Version: 3

Date: July 2012

Author: Kevin Ley / Michael McHugh / Graham Faulkner

Department: Redland Technical Solutions / Marketing

Solar PV Tiles – Installation Instructions 18 July 2012

Page 1 of 13

TABLE OF CONTENTS

Table of Contents 1

1 INTRODUCTION 2

1.1 Health & Safety 2

1.2 Equipment Required 3

2 PRELIMINARIES 4

2.1 Circuit Diagram & Layout 4

2.2 Felt & Battens 5

2.3 Marking Position 5

2.4 Rafter Pitches & Lengths 5

2.5 Fixing 6

2.6 Installation 7

3 DUOPLAIN 8

4 CONNECTIONS TO INVERTER 11

5 REPLACING A PV LAMINATE 13

Solar PV Tiles – Installation Instructions 18 July 2012

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1 INTRODUCTION

It is highly recommended that you read all the guidance and

installation notes before starting the installation to ensure that the

Redland Solar PV tiles and system are installed safely.

1.1 HEALTH & SAFETY

1.1.1 GENERAL GUIDANCE

•Ensure most up to date Construction (Design and Management) Regulations (CDM) and

general construction site training are followed.

•Any person handling PV tiles should be trained in correct manual handling practice. Please

note also that PV tiles can have sharp edges and so appropriate safety gloves should be

worn when handling panels.

•All appropriate Health and Safety regulations should be followed correctly.

•Avoid installing the system in poor weather conditions, including strong wind, rain, ice or

snow.

•Do NOT walk on the PV tiles at any time.

•The slating and tiling should be carried out in accordance with the current version of British

Standard BS 5534, Code of practice for slating and tiling (including shingles) and current

Redland Solar PV tile fixing instructions.

•Install all components as specified within this guide to ensure weather-tightness and wind

uplift security.

1.1.2 ELECTRICAL HAZARDS

Photovoltaic (PV) tiles do not present a risk as long as appropriate safety practices are

followed at all times during installation. In particular, you must be aware of the following:

•PV tiles produce a DC voltage whenever exposed to light. This voltage cannot be switched

off.

•All work must be carried out with the system disconnected from the main electrical supply.

•PV tiles are pre-wired with insulated connectors to prevent an electrical shock during

general handling. However, care must be taken not to cut or damage PV tile cable

insulation or expose bare wire.

•Ensure all PV tile cable connectors are dry and free of dirt before making connections.

•Ensure no PV tile cable ends are left exposed to the weather during pauses in the work

schedule or after completion of the works.

1.1.3 INSTALLATION PREPARATION

Follow the guidance below to ensure the Redland PV tiles are installed and handled

correctly:

•Use this installation guide alongside your PV tile layout and circuit diagram to determine

the location and layout of the Redland Solar PV tiles and associated PV tile cables on the

roof.

Solar PV Tiles – Installation Instructions 18 July 2012

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•Keep the Redland PV tiles in a weatherproof environment prior to installation.

•Carry the Redland PV tiles with both hands by the frame, avoiding touching or scratching

the face of the panels.

•Only load as many Redland PV tiles onto the roof as you expect to install during the work

session.

•Secure or remove any uninstalled PV tiles before leaving the roof to avoid possible wind

damage or theft.

•Do not leave tools or unsecured materials above the Redland PV tile installation area, to

avoid potential damage to the PV tiles.

1.2 EQUIPMENT REQUIRED

•Screwdriver or hand-held power screwdriver with pozi-drive head.

•Voltmeter to check PV tile cable connections (Note: It is recommended to test the voltage

across every 4 connected PV tiles as the installation proceeds to check the integrity of the

PV tiles and their electrical connections).

Solar PV Tiles – Installation Instructions 18 July 2012

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2 PRELIMINARIES

2.1 CIRCUIT DIAGRAM & LAYOUT

Before starting please check the circuit diagram to confirm the required layout of the PV tile

array and the associated electrical connections between PV tiles and also back to the DC to

AC Inverter. Redland Solar PV tiles are connected in electrical series in strings with each

string having its own connections back to the inverter. The PV tile connectors and cables

provided must be used for the series connection of the PV tile columns. PV tiles come with

pre-wired connectors for tile-to-tile connections within a PV column. Additional PV tile cables

are available in two lengths – 2 m cables for tile-to-tile connections between columns and 10

m cables for tile-to-inverter connections. A circuit diagram showing the recommended cabling

plan (not to scale) for a single string array of 8 PV tiles is shown below.

For Redland Solar PV tiles, the recommended direction of cabling within a string is in column

fashion, from bottom to top, then top to bottom in adjacent column, and then bottom to top

again, and so on as you work across the PV array with the PV tile columns running from right

to left. The pre-wired connectors attached to the PV tiles should be used for all the electrical

connections up or down a column. 2 m cables should be used for connecting PV tile columns

to each other; connections between adjacent PV tile columns should be made top-to-top,

then bottom-to-bottom, then top-to-top, and so on as you work across the PV array. The 10 m

cables should be used to connect the first and last PV tiles in the string to the inverter. As a

rule of thumb, the 10m cables should be long enough for the connections to the inverter for

PV tile arrays up to 4 columns of PV tiles wide; for wider PV tile arrays it may be necessary

to use longer inverter cables. Monier Limited can also supply 25m inverter cables if required.

Note that for all electrical connections the pre-wired connectors and cables are used to

connect from the + terminal to the - terminal in electrical series.

Solar PV Tiles – Installation Instructions 18 July 2012

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Additional strings of PV tiles connected in electrical series can be connected to the inverter

using the other sets of + and – inputs available on the inverter box. Note the maximum

number of PV tiles that can be connected to the inverter is only limited by the capacity of the

inverter. Check that the inverter has sufficient capacity for the size of the array being

connected. For large projects more than one inverter may be required.

The circuit diagram below shows the recommended cabling plan (not to scale) for 2 strings of

4 PV tiles each connected to a single inverter.

2.2 FELT & BATTENS

Felt and batten the roof in the normal manner ensuring the roofing underlay is laid with an

approximate 10mm drape between rafters and that the tiling battens are laid at the

appropriate gauge for the PV tile type to be used (see relevant section to follow for the

specific PV tile being installed).

2.3 MARKING POSITION

To make sure the PV tile array is installed in the correct position of the roof, it is

recommended that you first mark out the area where the PV tiles are to go before you begin.

It is also recommended that the position of the inverter(s) within the building in relation to the

PV array is (are) identified.

2.4 RAFTER PITCHES & LENGTHS

For Cambrian Slate, Mini Stonewold, Mockbond Mini Stonewold, Landmark Double Pantile,

Grovebury, Landmark Double Roman, 50 Double Roman, DuoPlain, Richmond 10, Saxon 10,

Landmark Slate 10, MockBond Richmond 10, Natural Slate and Plain Tiles (including

Rosemary Clay Plain Tiles) follow the appropriate PV tile installation instructions in following

sections. The maximum rafter length for flat interlocking tiles and slates at minimum rafter

pitch is 10 m. (9 m for Natural Slate in moderate exposure areas, 6 m in severe). Please

contact Technical Solutions for further advice on rafter lengths. Note that the minimum and

maximum rafter pitch for use of each of the Redland Solar PV tiles is shown in the table

below:

Solar PV Tiles – Installation Instructions 18 July 2012

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REDLAND SOLAR

PV TILE

RAFTER PITCH

(MIN - MAX)

Natural Slate (500

x 250 mm) 25 - 69

Cambrian 25 - 69

Richmond 10 22.5 - 69

Saxon 10 22.5 - 69

Landmark Slate 10 22.5 - 69

MockBond

Richmond 10 27.5 - 69

Mini Stonewold 22.5 - 69

Mockbond Mini

Stonewold 22.5 - 69

Landmark Double

Pantile 20 - 69

Grovebury 20 - 69

Landmark Double

Roman 20 - 69

50 Double Roman 20 - 69

DuoPlain 25 - 69

Plain Tiles (incl.

Rosemary Clay

Plain Tiles) 35 - 69

2.5 FIXING

The fixing instructions in the following sections are those that apply where the supporting

rafters/frame or tiling batten supports are spaced at no more than 600mm centres and the

tiling battens used are 50 x 25 mm (38 x 25 mm for Plain Tiles (incl. Rosemary Clay Plain

Tiles)) in dimension. For other configurations please contact Redland Technical Solutions

(Tel. 08708 702595) for advice before proceeding.

Please note that in all cases the perimeter slates/tiles adjacent to the PV tile array must as a

minimum be screw-fixed in all the available nail-holes using the screw specified for the

Solar PV Tiles – Installation Instructions 18 July 2012

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slate/tile. The only exception is centre-nailed Natural Slate which can be fixed in the standard

way with two nail fixings, apart from the cut slate course directly below the bottom course PV

tiles, which must be secured using slate hooks. Slate hooks can also be used around the

sides and top of the PV tile array if so required .

2.6 INSTALLATION

Note that all Redland Solar PV tiles are fully integrated with the slates/tiles and as such are

designed to be installed from right to left (see instructions below). Redland Solar PV tiles are

designed to integrate with at least one slate or tile at the perimeter of the PV tile array to

ensure weather-tightness of the installation; this integration is achieved either directly by

interlocking with the slate/tile in the case of interlocking roof slates/tiles, or indirectly via

special proprietary soakers in the case of double lapped natural slates or plain tiles.

Information on the layout and positioning of the proprietary soakers for the Natural Slate and

Plain Tile PV tiles respectively is given at the start of the relevant sections that follow.

Solar PV Tiles – Installation Instructions 18 July 2012

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3 DUOPLAIN

Each DuoPlain PV tile replaces 6.5 DuoPlain Tiles. It is important to

note that the instructions below relate to the PV tile array and any

special detailing required around the array. Everywhere else on the

roof the fixing instructions for DuoPlain Tiles should be followed. For

DuoPlain Tile when installing Redland Solar PV tiles the tiling battens

should first be set out with spacing (gauge) of 188 mm (+0 mm, -5

mm) only. If the PV tiles are set out at a gauge less than this it is

possible that some PV cells will be partially covered or shaded by the

PV tiles in the course above.

i. Install the tiles in the course below the bottom PV tile

course ensuring that the tiles adjacent to the PV tiles

are screw fixed once using 38 x 4.2 mm countersunk

pozi-drive screws (9104).

ii. Before installing the bottom course PV tiles screw-fix

the fixing bracket provided (one for each PV tile

column) as shown above into each rafter using the

screws supplied. The fixing bracket is located flush

against the top of the tiling batten (for the DuoPlain

course below) with its right edge lined up

approximately against the edge of the DuoPlain tile

adjacent to the PV tile. The fixing bracket allows each

bottom course PV tile to be mechanically fixed at its

tail via the hook on the underside of the PV tile

preventing the PV tile from lifting under windy conditions.

iii. Lay the tiles in the course above in three-quarter bond

from right to left in the normal manner up to the

position where the first PV tile is to be fixed ensuring

the tile adjacent to the PV tile is screw-fixed.

Solar PV Tiles – Installation Instructions 18 July 2012

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iv. The bottom course PV tile is now ready to be

installed. Slide the PV tile down so that the fixing

hooks on the underside locate under the fixing bracket

shown in (ii) and that the metal nibs at the top of the

PV tile (on the underside) hang on the tiling batten as

shown. Screw-fix the PV tile to the tiling batten below

using the PV tile screws supplied (4 per PV tile).

Depending on the width (number of PV columns) of

the PV tile array install further PV tiles as required in

the same course working right to left.

v. Note that where an odd number (e.g. 1, 3, 5, 7 etc) of

PV tiles make up each course standard tiles will be

required at the left edge of the PV tile array to

maintain the bond of the tiling; where an even number

(e.g. 2, 4, 6, 8 etc) of PV tiles make up each course

then tile-and-a-halves will be required at the left edge

of the PV tile array.

vi. With the first PV tile and tiling course completed

proceed with the installation of the PV tiles and tiling

in the course above. First ensure that the pre-wired

connectors from the PV tile below are pushed up

between the tiling batten and roofing underlay and

connected to the correct pre-wired connectors of the

PV tiles above. Position the PV tile above at the

correct bond in relation to the PV tile below and slide

the PV tile down until the fixing hooks on the

underside of the PV tile locate under the head of the

PV tile below.

vii. Continue laying the PV tiles (following the cabling

plan) and tiles from right to left until the PV tile column

height required is achieved as per circuit diagram.

Indice

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