GDL Air Systems Ltd Product/Technical Catalogue

CUSTOMER INFORMATION GRILLES DIFFUSERS LOUVRES DAMPERS SOLAR SHADING

technical catalogue

GDL AIR SYSTEMS LTD

ACCESSORIES

www.gdl.co.uk

NATURAL VENTILATION

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

TECHNICAL CATALOGUE GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

GDL Air Systems Ltd is a privately owned manufacturer and supplier of air distribution products, servicing the construction industry both Nationally and in Europe.

Since 1980 GDL has offered a vast wealth of experience in technical, manufacturing and product development fields, ensuring our customers are supplied with a choice of products most suited to their requirements, manufactured to the highest quality.

We are fully focused on ensuring 100% customer satisfaction.

Our internationally recognised accreditations, including ISO 9001 and ISO 14001 demonstrate that quality and customer service are of paramount importance to us.

Our specialist manufacturing capability means we can offer bespoke non-standard product variations. Approximately 50% of the products we supply are tailored to meet our customers exact requirements and we are proud to have been involved in some of the UK’s most complex and prestigious building projects.

GDL's Technical Catalogue is also available online at: www.gdl.co.uk

GDL AIR SYSTEMS LTD

www.gdl.co.uk

CONTENTS 1 . CU STOM ER I NFOR MATI ON Customer Charter and Contact Information

Page 1

2 . GR ILLES Single Deflection Grille Double Deflection Grille Heavy Duty Single Deflection Grille Heavy Duty Double Deflection Grille Fixed Blade Supply / Extract Grilles Selection Data for Sidewall Mounted Grilles Technical Data Sidewall Mounted Supply Air Grilles Pressed Steel Register Technical Data Pressed Steel Register Eggcrate Core Grille Flat Cover Grille Technical Data Sidewall Mounted Extract Air Grilles 45째 Fixed Blade Grille Perforated Face Grille Technical Data Sidewall Mounted Extract Air Grilles Non Vision Door Transfer Grille Acoustic Air Transfer Grilles Flush Mounting Door Grille Technical Data Sidewall / Door Mounted Air Transfer Grilles Pressed Steel Grille Technical Data Pressed Steel Grille Security Grille High Security Grille Selection Table Steel Security Grille Fixing Options Frame Style Options Core Options Economy Fixed Linear Bar Grilles Fixed Linear Bar Grilles Economy Linear Bar Floor Grilles Technical Data Linear Bar Grilles Heavy Duty Linear Bar Grilles Heavy Duty Linear Bar Floor Grilles Technical Data Heavy Duty Linear Bar and Floor Grilles Computer Room Floor Grilles Technical Data Computer Room Floor Grilles

Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 10 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47

3 . DI FFUS ER S High Induction Slot Diffusers Technical Data Linear Slot Diffusers (High Induction) Supply Linear Slot Diffusers Technical Data Linear Slot Diffusers (Y - Model) Technical Data Linear Slot Diffusers (Y - Model) Supply Technical Data Linear Slot Diffusers (Y - Model) Extract Narrowline Slot Diffusers Two-way Narrowline Slot Diffusers Technical Data Narrowline Slot Diffusers (Q - Model) Adjustable Jet Nozzles Rota-Jet Diffusers Technical Data Rota-Jets Circular Face Air-Jets Air-Jets Technical Data Air-Jets Multi-Cone Ceiling Diffusers Multi-Cone Tile Replacer Diffusers Multi-Cone Ceiling Diffusers Multi-Cone Ceiling Diffusers Set Into Lay In Ceiling Panel Multi-Cone Ceiling Diffuser Core Options Technical Data Multi-Cone Diffusers Technical Data Multi-Cone Diffusers (Extract) Perforated Diffusers Technical Data Perforated Diffusers Curved Vane Diffusers Angled Vane Diffusers Curved Vane Diffuser Core Options Angled Vane Diffuser Core Options Technical Data Curved / Angled Vane Diffusers Circular Multi-Cone Diffusers Technical Data Circular Multi-Cone Diffusers Economy Circular Multi-Cone Diffusers Performance Data Economy Circular Multi-Cone Diffusers Fixed Circular Diffusers Technical Data Fixed Pattern Circular Diffusers 92000 / 92100 Air Valves Air Valves Extract / Supply

Page 49 Page 50 Page 51 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 61 Page 62 Page 66 Page 67 Page 69 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 80 Page 81 Page 82 Page 84 Page 85 Page 86 Page 86 Page 87 Page 88 Page 89 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96

Polypropylene Air Valves Laminar Flow Diffusers Technical Data Laminar Flow Diffusers Fixed Blade Swirl Diffusers Swirl Diffusers Perforated Face Swirl Diffusers High Capacity Swirl Diffusers Floor Swirl Diffusers Floor Swirl Diffusers - DN200 + Selection Data Displacement Diffusers

Page 97 Page 98 Page 100 Page 101 Page 103 Page 108 Page 109 Page 111 Page 112 Page 113

4. LOU VRES 30mm Weather Louvres 50mm Single Bank Weather Louvres Technical Data 50mm Single Bank Weather Louvres Louvre Screening 50mm and 75mm Weather Louvre Multi-Panel Options 50mm Double Bank Weather Louvres Combined Intake / Discharge Louvres 60mm Weather Louvres 75mm Single Bank Weather Louvres Weather Louvre Fixing Options Louvre Doors Double Leaf Louvre Doors Single Leaf Louvre Doors Screen Louvre Doors Turret / Penthouse Louvres Technical Data Turret / Penthouse Louvres Site Assembly Clip-On Louvres Acoustic Weather Louvres Technical Data Acoustic Louvres Movable Blade Louvres Movable Blade Louvre Actuation Options Steel Security Bar Grille

Page 115 Page 117 Page 119 Page 119 Page 120 Page 121 Page 122 Page 124 Page 125 Page 127 Page 129 Page 130 Page 131 Page 132 Page 133 Page 135 Page 137 Page 139 Page 140 Page 141 Page 142 Page 143

5. DAMPERS VOLU ME CONTROL Duct Dampers Heavy Duty Duct Dampers Fully Sealed Slimline Duct Dampers Low Leakage Insulated Dampers Technical Data Volume Control Dampers Heavy Duty Back Draught Dampers Lightweight Pressure Relief Unit

Page 145 Page 146 Page 147 Page 148 Page 149 Page 151 Page 153

FI R E DAM PER S Fire Dampers Low - Medium Velocity Fire Dampers Medium - High Velocity Technical Data Fire Dampers Intumescent Fire Block Fire & Smoke Control Dampers Options and Weight Charts Fire / Smoke Control Dampers Technical Measurements Fire / Smoke Control Dampers Testing and Conformities Fire / Smoke Control Dampers Elevated Temperature and Smoke Control Dampers Combined Fire Damper / Plenum Box

Page 155 Page 157 Page 159 Page 160 Page 161 Page 162 Page 163 Page 164 Page 165 Page 167

6 . S OLAR S H ADI NG Intelishade - Solar Shading Horizontal Fixed System Intelishade - Solar Shading Vertical Solar Systems

Page 169 Page 171

7 . N ATU R AL VENT I L AT I ON Natural Ventilation - Intelivent Range Intelivent Range - Wall Mounted Units Intelivent Range - Technical Data Intelivent Range - Penthouse Turrets Intelivent Range - Solarstore Intelivent Range - Solarstore Unit With Plate Heat Exchange Option Product Selection Table Intelivent Range

Page 173 Page 175 Page 176 Page 177 Page 178 Page 179 Page 180

8 . ACC ESSOR I ES Grille and Diffuser Plenum Boxes Linear and Slot Diffuser Plenum Boxes Accessories 9 . N OMEN CL AT UR E

Page 181 Page 182 Page 183

CUSTOMER INFORMATION

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

customer information www.gdl.co.uk

GDL AIR SYSTEMS LTD

2

customer satisfaction THE GDL CUSTOMER CHARTER At GDL, customer satisfaction means everything to us, to that end we strive to make the following pledge to all our customers.

4 4 4 4

To supply the highest quality products.

A fair and consistent price on our full product range.

Dedicated technical support and industry expertise.

100% Commitment to customer satisfaction.

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

Customer Contact Information If you would like to know more about any of the products in our range, please contact us on: SALES T. 01457 861538 CUSTOMER SERVICES T. 01457 891764 TECHNICAL ENQUIRIES T. 01457 891762 ACCOUNT ENQUIRIES T. 01457 862053 FAX T. 01457 866010 EMAIL sales@gdl.co.uk WEBSITE www.gdl.co.uk

T. 01457 861 538

HEAD OFFICE Woolley Bridge Road | Hadfield Glossop | Derbyshire | SK13 1AB T. 01457 861538 F. 01457 866010 E. sales@gdl.co.uk

LONDON OFFICE Davenport House | 16 Pepper Street London | E14 9RP T. 0207 5109506 F. 0207 5109507 E. sales@gdl.co.uk

SOUTH WEST OFFICE Newton House | 32 Alexandra Road Clevedon | Somerset | BS21 7QH T. 01275 341322 F. 01275 343633 E. uasltd@btconnect.com

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GRILLES

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

grilles www.gdl.co.uk

GDL AIR SYSTEMS LTD

Single Deflection Grille

T. 01457 861 538

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Double Deflection Grille

4

T. 01457 861 538

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Heavy Duty Single Deflection Grille

T. 01457 861 538

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Heavy Duty Double Deflection Grille

6

T. 01457 861 538

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Fixed Blade Supply / Extract Grilles

T. 01457 861 538

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Selection Data For Sidewall Mounted Grilles Basis of Technical Data

Correction Factors

8

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Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

10

0°

45°

3.7 2 2.66 4.3 3 3.6 6 6 20 4.43 7.7 8 29 5.32 9 12 34 6.21 11 16 38 7.1 13 21 44 8 14 27 46 9 16 31 50

2 3 3.43 2.7 6 19 4.58 3.7 11 26 5.72 4.4 17 35 6.87 5 26 40 8 6.6 32 45 9.16 7.7 41 51 10.3 8 50 53 11.44 9 66 -

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2 1.8 3 2 2.41 4 3 3 4.9 5 16 3.62 5.9 5 21 4.22 7 8 28 4.82 8 10 32 5.42 9 11 36 6.03 9.7 19 40 6.63 10 18 42 7.23 11 25 45 7.84 12 26 47 8.44 12.8 31 49 9 13.8 37 52

0°

45°

1.27 2.6 1.69 3.7 2 2.12 4.7 3 2.54 6 3 14 2.96 7 4 17 3.38 7 5 22 3.8 8 7 24 4.23 9 7 30 4.65 10 10 32 5.08 11 11 36 5.5 12 11 38 5.92 13 13 42 6.39 13 15 43

1.63 1.2 2 2.18 2.1 3 2.73 2.6 5 15 3.27 3.2 6 18 3.82 3.5 7 23 4.36 4.4 11 29 4.9 5.2 13 31 5.45 5 15 36 6 5.6 18 38 6.54 5.8 22 43 7.09 6.3 25 45 7.63 6.9 27 48 8.18 7.6 33 50

F. 01457 866 010

1.45 2.6 2 1.82 3 2 2.19 4 2 2.6 4.8 3 15 2.92 5 4 17 3.28 5.8 5 20 3.65 6.8 6 24 4 7.7 8 27 4.38 7.7 8 31 4.74 8.2 10 34 5.1 9.5 10 35 5.47 10 13 37

u

0°

45°

1.32 3 1.58 4 1.85 5 2 2.1 5.3 2 2.37 6 3 14 2.64 6.8 3 16 2.9 7.3 4 18 3.16 7.7 5 20 3.43 8.4 5 24 3.69 9 5 26 3.95 9.5 6 28

1.7 1.2 2 2.04 2.2 2 2.38 2.6 3 2.72 3 5 16 3.06 3.4 5 18 3.4 3.7 6 22 3.74 4 7 26 4.08 4.6 9 29 4.42 4.8 11 30 4.75 5.3 12 32 5.1 5.6 14 34

sales@gdl.co.uk

Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

0°

45°

1.25 3 1.46 3.8 1.66 4.7 1.87 5.5 2.08 6.1 2 2.29 6.7 3 2.5 7.4 3 17 2.71 7.5 4 18 2.92 7.7 4 20 3.12 8.1 5 21

1.61 1.5 2 1.88 1.8 2 2.15 2.8 3 2.41 3.1 3 2.65 3.4 4 16 3 3.9 5 19 3.22 4 5 22 3.5 4.1 6 24 3.76 4.5 7 26 4.03 4.7 9 27

1.31 2.2 1.5 3.1 1.7 3.8 1.88 4 2 2.07 4.6 3 2.25 5 3 2.45 5.6 3 16 2.64 5.8 4 17 2.32 6.2 5 19

T. 01457 861 538

0°

45°

22°

0°

45°

1.14 3.8 1.27 3.8 1.4 4.1 1.52 4.6 1.65 5.1 1.77 5.6 1.9 6 2 -

1.5 2 2 1.63 2.2 2 1.8 2.2 3 1.96 3 3 2.12 3.2 3 2.29 3.2 4 15 2.38 3.5 4 16

1.09 2.6 1.2 3 1.3 3.1 1.4 3.5 1.5 3.5 -

1.04 3.1 1.11 3.5 -

1.34 1.7 2 1.43 2 2 -

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Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

12

0°

45°

14 19 45 7.61 15 25 48 8.45 17 30 53 9.3 17.8 35 56

8 38 53 9.82 8.8 50 10.9 9 58 12 10 63 -

T. 01457 861 538

9.7 13 40 6.56 12 17 44 7.29 12.6 20 48 8 13 23 51 8.75 15 28 54 9.48 17 33 55 10.2 17.5 40 -

0°

45°

9.2 8 31 4.74 12.7 10 36 5.27 12.6 10 38 5.79 13 10 41 6.3 15 13 45 6.85 16 14 47 7.37 17 18 50 7.9 17.7 20 52 8.42 18.5 23 53

5.3 15 37 6.11 6.5 20 43 6.79 6.8 23 46 7.47 7 28 48 8.15 8 31 51 8.82 9 37 54 9.5 9 39 10.19 10 50 10.86 10.2 58 -

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7.6 6 25 4 8.5 7 29 4.54 9 9 33 5 10 9 37 5.45 11 10 38 5.9 12.3 13 41 6.36 13 15 45 6.81 13.6 17 47 7.26 15 20 50 7.72 16 20 52 8.17 17 32 54

u

0°

45°

7.6 3 19 3.1 8.7 4 22 3.45 10 5 26 3.79 10.5 5 29 4.14 11.3 5 32 4.5 12 6 35 4.88 13 8 38 5.17 14 8 39 5.52 15.5 9 43 5.86 16 10 45 6.21 17 13 46 6.9 19.5 15 51 7.6 20 25 53

3.7 7 25 4 4.6 8 29 4.45 5.2 9 33 4.9 6.2 11 37 5.34 6.5 13 39 5.78 6.8 14 42 6.23 7.2 18 45 6.7 7.7 20 46 7.12 8 23 50 7.56 8.8 30 52 8 9 32 54 8.9 10.2 38 9.8 11 53 -

sales@gdl.co.uk

Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

6.2 2 15 2.28 7.4 3 17 2.54 8 3 19 2.79 8.7 3 20 3.04 9.5 4 23 3.3 10 4 25 3.56 11 5 27 3.8 12 5 30 4.06 13 6 33 4.31 13.6 6 35 4.57 14 7 38 5.08 15 8 41 5.58 16.5 9 44 6.09 18 14 47

3.7 4 18 2.95 4.6 5 22 2.27 4.7 5 25 3.6 5 5 26 3.92 5.2 8 29 4.25 5.8 9 32 4.58 5.8 10 34 4.91 6.8 12 36 5.23 7 13 39 5.56 7.2 14 42 5.89 8.2 16 45 6.54 8.8 19 48 7.2 8.7 25 51 7.84 10 30 55

4 2 1.8 4.8 2 2 5.2 2 2.2 5.8 3 15 2.4 6.4 3 15 2.6 7.3 4 20 2.8 7.4 4 21 3 8 4 24 3.2 8.3 6 25 3.4 9 6 26 3.6 10 6 29 3.99 10.6 7 32 4.4 10.8 8 36 4.8 13 8 40

T. 01457 861 538

1.33 4.3 1.48 5 1.63 5.5 1.8 6.5 1.92 7.3 2.07 8 3 2.22 8.6 2 18 2.38 9 3 20 2.5 10 3 21 2.67 11 3 22 2.96 11 4 25 3.26 12 5 28 3.56 14 5 30

1.72 2.5 2 1.91 2.5 2 2.1 3 2 2.3 3 3 18 2.5 3.9 4 20 2.67 4 5 21 2.88 4.8 4 24 3.06 5 6 25 3.25 5.4 7 27 3.44 5.9 7 29 3.82 5.8 8 32 4.2 6.7 9 34 4.58 7 10 36

1.33 3.4 1.45 4 1.56 4.7 2 1.69 5.5 2 1.81 5.7 2 1.93 6 3 15 2.05 6.8 3 16 2.18 6.8 4 17 2.41 7 4 20 2.51 8 4 23 2.9 8.5 5 26

F. 01457 866 010

1.12 4.9 1.21 5 1.29 5.5 1.37 6 1.45 6.7 2 1.61 7 2 1.73 7.5 2 15 1.94 9 3 17

u

1.46 2.5 2 1.56 2.5 2 1.66 3 3 1.76 3 3 14 1.87 3.2 3 15 2.08 4 4 16 2.28 4.4 4 21 2.5 5 4 23

sales@gdl.co.uk

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Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

14

0°

45°

23 25 -

13 63 -

T. 01457 861 538

16 18 50 7.75 17.5 20 53 8.3 18.5 23 54 9.12 20 29 -

0°

45°

16 9 40 5.12 17.5 9 41 5.5 18.5 9 45 6.04 20 10 47 6.75 22 13 49 7.33 23 15 52

9.2 18 47 6.61 10 20 48 7.08 10 22 52 7.8 11 25 54 8.75 12 32 56 9.45 13 38 -

F. 01457 866 010

11 7 33 4.53 12 8 36 4.85 13 9 40 5.33 14 11 42 6 15.7 13 45 6.46 17 15 49 7.43 19 20 53

u

0°

45°

11 3 25 3.1 12.3 3 27 3.32 13 4 29 3.65 14 4 31 4.09 15.7 5 35 4.43 17 6 40 5.08 20 10 44 5.75 23 15 47 6.63 26 20 54

6.3 5 32 4 6.8 6 34 4.28 7 8 36 4.7 8 10 38 5.28 8.6 15 42 5.7 9 22 46 6.56 11 38 50 7.41 11.7 45 54 8.55 13 50 -

sales@gdl.co.uk

Technical Data Sidewall Mounted Supply Air Grilles

APERTURE A x B (mm)

0°

45°

10 2 18 2.25 11 3 20 2.41 12 4 22 2.66 12.4 4 24 2.98 13.5 4 27 3.23 15 5 30 3.7 16 6 34 4.19 18 11 37 4.83 22 15 46 5.63 27 16 51 6.45 34 19 54

5.7 5 24 2.91 6 5 27 3.12 6.7 7 28 3.42 7 9 31 3.84 7 12 34 4.15 8 13 36 4.78 8.6 20 41 5.4 9.3 25 44 6.23 11 38 53 7.28 14 43 8.3 18 50 -

6 2 15 1.93 6.8 3 15 2.06 7.3 4 17 2.28 8 5 19 2.55 9.2 6 22 2.75 10 7 25 3.17 11 8 28 3.58 12.3 12 32 4.13 15 15 38 4.82 17 18 44 5.51 24 25 49 6.54 29 30 7.5 31 37 9 37 48 -

T. 01457 861 538

0°

45°

22°

0°

45°

5.6 2 1.39 6.8 3 1.5 7.3 3 1.65 8.3 3 1.83 9 3 15 2 10 4 18 2.28 12 5 20 2.57 13 6 25 2.92 15 7 30 3.46 18 9 35 3.95 24 11 41 4.7 33 15 48 5.5 35 19 6.4 38 25 -

3 3 1.79 3.3 4 16 1.91 3.8 5 17 2.1 4.4 5 18 2.35 5 6 22 2.55 5.7 10 25 2.93 6.7 12 27 3.31 7 15 31 3.82 8.2 19 38 4.46 10.3 28 43 5.1 13 32 48 6.05 17 24 55 7 19 40 8.3 22 48 -

1.28 4 2 1.37 4 3 1.5 4.3 3 1.68 5 4 1.82 5.6 4 15 2.09 6.9 5 18 2.36 8.5 8 21 2.73 10 9 28 3.19 11 13 31 3.68 16 14 36 4.32 22 18 44 5 25 24 5.9 28 25 -

1.79 8 2 2.02 9 4 19 2.33 9.3 4 24 2.72 12 5 27 3.11 18 7 30 3.7 23 9 38 4.3 26 13 48 5 29 16 -

2.31 4.3 8 21 2.61 5 10 26 3 6.2 13 30 3.5 7.5 18 34 4 9 25 37 4.77 12 27 44 5.5 14 29 55 6.5 16 34 -

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Pressed Steel Register

T. 01457 861 538

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Technical Data Pressed Steel Register

18

T. 01457 861 538

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Eggcrate Core Grille

T. 01457 861 538

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Flat Cover Grille

20

T. 01457 861 538

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Technical Data Sidewall Mounted Extract Air Grilles

T. 01457 861 538

F. 01457 866 010

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45o Fixed Blade Grille

22

T. 01457 861 538

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Perforated Face Grille

T. 01457 861 538

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Technical Data Sidewall Mounted Extract Air Grilles

24

T. 01457 861 538

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Non Vision Door Transfer Grille

T. 01457 861 538

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Acoustic Air Transfer Grilles Description

For air transfer applications, the channel section core with integral noise absorption material provides an effective solution when transfer ventilation is required but noise transmission through the grille needs to be reduced.

Construction

From extruded aluminium sections with Pyrosorb acoustic infill to all blades. Screw holes in the flanges are provided as standard as there is no access through the grille to facilitate secret fixing.

Size and Weight

From 150 x 150 to 900 x 600.

Single bank grilles type ATG00 will suit door or wall thicknesses from 44mm to 55mm.

Double bank grilles type ATG20 will suit wall thicknesses above 110mm.

For wall thicknesses between 55mm and 110mm, specify the ATG30 type.

ATG00+1C

26

T. 01457 861 538

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Flush Mounting Door Grille

T. 01457 861 538

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Technical Data Sidewall / Door Mounted Air Transfer Grilles

T. 01457 861 538

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Pressed Steel Grille

30

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Technical Data Pressed Steel Grille

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Security Grille

32

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High Security Grille

Specify ‘d’ dimension wall depth separately

F Flap Damper

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Selection Table Steel Security Grille Grille Size 150 x 150 q (l/s)

20

25

30

35

Lt (M)

4.1

5.0

5.9

7.0

40 8.0

NC

22

27

30

35

40

Vk (M/s)

5.3

6.6

7.9

9.2

10.52

Vn (M/s)

1.17

1.47

1.76

2.06

2.35

PS (Pa)

15

25

35

45

52

q (l/s)

20

25

30

35

40

45

50

55

Lt (M)

3.1

3.9

4.5

5.0

5.8

7.0

7.5

8.3

9.1

NC

17

18

20

24

27

30

34

38

40

Vk (M/s)

2.7

3.4

4.1

4.8

5.5

6.2

6.8

7.5

8.2

Vn (M/s)

0.62

0.78

0.93

1.09

1.25

1.40

1.56

1.71

1.85

Ps (Pa)

5

8

10

15

20

25

30

35

40

q (l/s)

30

35

40

45

50

55

60

65

70

75

80

85

90

Lt (M)

3.5

4.2

5.0

5.5

6.0

7.0

7.5

8.1

9.0

9.5

10.0

11.0

12.0

NC

10

17

20

24

25

27

30

33

35

37

38

40

43

Vk (M/s)

2.5

2.9

3.4

3.8

4.2

4.6

5.0

5.5

5.9

6.3

6.7

7.1

7.6

Vn (M/s)

0.56

0.66

0.75

0.85

0.94

1.03

1.13

1.22

1.32

1.41

1.50

1.60

1.69

Ps (Pa)

4.5

6

9

10

14

16

19

22

27

32

36

40

45

q (l/s)

40

45

50

60

70

80

90

100

110

120

130

Lt (M)

4.1

4.5

5.0

6.0

7.5

8.5

9.5

11.0

12.0

13.0

14.0

NC

15

18

19

24

25

30

35

37

38

43

45

Vk (M/s)

2.3

2.6

2.8

3.4

4.0

4.5

5.1

5.7

6.3

6.8

7.4

Vn (M/s)

0.51

0.57

0.64

0.76

0.89

1.02

1.15

1.28

1.41

1.53

1.66

Ps (Pa)

4

4.6

6

10

13

15

20

27

35

38

42

q (l/s)

50

60

70

80

90

100

120

140

160

180

Lt (M)

4.5

5.5

6.5

7.5

8.5

9.5

11.0

13.0

14.5

17.0

NC

16

18

22

25

28

31

37

40

45

50

Vk (M/s)

2.0

2.4

2.8

3.3

3.7

4.1

4.9

5.7

6.5

7.3

Vn (M/s)

0.45

0.55

0.64

0.73

0.82

0.91

1.10

1.28

1.46

1.65

Ps (Pa)

4

5

7

9

12

15

20

30

40

50

q (l/s)

60

80

100

120

140

160

180

200

220

Lt (M)

4.5

6.0

8.0

9.5

12.0

13.0

14.0

16.0

18.0

NC

15

20

25

30

33

39

42

45

50

Vk (M/s)

1.8

2.5

3.0

3.7

4.3

4.9

5.5

6.2

6.7

Vn (M/s)

0.41

0.55

0.69

0.83

0.97

1.11

1.25

1.38

1.53

Ps (Pa)

3

5

8

12

15

24

30

35

45

200 x 200 60

250 x 250

300 x 300

350 x 350

400 x 400

EXTRACT + 5 Pa + 5 Nc LT Figure is at 0.5 M/s Vt

34

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Fixing Options Fixings

+ 1

Flange Holes

Countersunk flange holes for frames S & A to take zinc plated No. 6 self tapping screws.

Colour coded screws are provided where B & C finish is specified. +’1’ Fixing ‘S’ Frame

+ 2

+’1’ Fixing ‘A’ Frame

+ 3

Neck Fixings

Concealed spring friction clips at regular spacings.

O n l y s u i ta b l e f o r mounting into window cill or perimeter casing etc....

Concealed fixing through the neck of grille by others.

External fixing where access allows.

Internal fixings for hinged and removable core products.

External Neck Fixings

+ 4

Internal Lugs

Internal rear fixing brackets to take suspension wires or 6.0mm drop rods.

Only suitable for hinged and removable core products.

+ 6

Clip-In T-Bar

Frame clips to snap into concealed split T - Bar metal tile systems.

Can be produced to suit bevel or square tile systems.

Check compatibility of clips with factory prior to specifying

+ 7

Internal Neck Fixings

+ 9

External Lugs

External rear fixing brackets to take suspension wires or 6.0mm drop rods.

+ 5

Spring Friction Clips

Bevel Edged Tile System

Sub - Frame

Factory fitted quick release quarter turn fasteners and corresponding rear subframe of heavy gauge galvanised steel.

T. 01457 861 538

Square Edged Tile System

+ 8

Lay - In Tile Replacer

Inverted lay-in T- Bar system.

Rear suspension lugs are fitted to round neck tile replacement products as standard.

Refer to product information for appropriate weights.

Concealed Rear Bracket

Concealed rear fixing bracket method, suitable for wall, cill, ceiling or floor mounted products.

Tw o pa r t b r a c k e t supplied, complete with machine screw and threaded insert.

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Frame Style Options

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Core Options

38

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Economy Fixed Linear Bar Grilles

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39

Fixed Linear Bar Grilles

40

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Economy Linear Bar Floor Grilles

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41

Technical Data Linear Bar Grilles

42

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Heavy Duty Linear Bar Grilles

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43

ProductDuty Heavy name Linear Bar Floor Grilles

44

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Technical Data Heavy Duty Linear Bar & Floor Grilles

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45

Computer Room Floor Grilles Description

For supply or extract applications, the grilles are designed to integrate with the most popular raised access floor systems.

Available in both Light and Extra Heavy duty grades to BS-EN 13264:2001.

Construction

Manufactured from heavy gauge aluminium extrusions, the frames are of fully welded construction. Extra heavy duty versions incorporate rear reinforcement mullions to maintain full structural integrity.

The grille core is constructed from extruded aluminium bars with a face thickness of 6mm, and is welded into the retaining frame.

The frame profile is designed to sit directly in contact with the floor pedestal earth terminal, removing the need for additional earth bonding connections and their associated expense.

Certification

Independently tested by the University of Salford, the R77 exceeds the requirements of BS-EN 13264:2001 for extra heavy duty applications.

Size and Weight

600 x 600 tile module size as standard, though other sizes are available on request.

Light duty grille 8.5 kg Extra heavy duty grille 14.0kg Optional OBD 2.0kg

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How To Specify

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE. Eg 10Qty R77LV+BD 600 x 600 x 36 thick.

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Computer Room Floor Grilles

Technical Data Computer Room Floor Grilles

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47

DIFFUSERS

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

diffusers www.gdl.co.uk

GDL AIR SYSTEMS LTD

High Induction Slot Diffusers

f Slot Qty

b c1 c2 d e f

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1 1xf 31 32 37 35 65 17

2 2xf 63 65 70 67 98 17

u

3 3xf 96 97 102 100 130 17

4 4xf 128 130 135 131 163 17

5 5xf 161 162 167 165 195 17

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49

Technical Data Linear Slot Diffusers (High Induction) Supply qm (l/s) (1000mm)

f=1>6 (Slot Quantity)

Ps (Pascals)

NR

Note

20

1xf

6

18

1xf

14

29

2xf

4

13

1xf

26

37

2xf

6

21

This diffuser utilises high induction airflow principles which ensure that the supply air velocity rapidly decreases to within 0.25 m/s just 0.5 metre from the diffuser.

As such the usual air throw pattern typical of a standard slot diffuser does not apply and therfore is not shown.

3xf

3

11

2xf

10

27

3xf

4

17

4xf

3

10

2xf

14

32

3xf

6

22

4xf

4

16

2xf

20

37

3xf

9

27

4xf

5

20

2xf

26

40

3xf

11

31

4xf

6

24

5xf

4

18

3xf

14

34

4xf

8

27

5xf

5

22

6xf

4

17

3xf

18

37

4xf

10

30

5xf

6

25

6xf

4

20

4xf

16

36

5xf

10

31

6xf

7

27

4xf

23

41

5xf

14

36

6xf

10

32

5xf

20

41

6xf

14

36

5xf

26

44

6xf

18

40

30

40

50

60

70

80

90

100

125

150

175 200

Selection Example: Required Air Volume: Length of Slot Available: Max. Pressure Differential: Max. Noise Level:

350 l/s 5.0 metres 10 pa NR 30

Divide the required air volume of 350 l/s by the maximum length of Slot available.

350 = 70 l/s/m 5 From the technical data table we can select a 3 Slot diffuser which gives 9 pa and NR 27 both within the set requirements.

1 Qty. Y4H3B+8C 5000mm Long

High Induction Slot Diffuser

Fixings High Induction Slot Diffuser Fixings

Installation into G7010+80 plenum box +8 Concealed Rear Brackets

G7010+80 plenum box

50

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Linear Slot Diffusers

Slot Quantity

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51

Linear Slot Diffusers

52

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Technical Data Linear Slot Diffusers (Y - Model)

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53

Technical Data Linear Slot Diffusers (Y - Model) Supply

54

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Technical Data Linear Slot Diffusers (Y - Model) Extract

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55

Narrowline Slot Diffusers

56

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Two-way Narrowline Slot Diffusers

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57

Technical Data Narrowline Slot Diffusers (Q- Model)

58

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Adjustable Jet Nozzles

Size A(160) B(200) C(250) D(315) E(400)

A 158 198 248 313 398

B 170 210 260 325 410

C 216 273 318 400 483

D 82 108 136 174 230

E 21 30 39 52 71

F 95 111 143 166 199

Please contact the office for detailed technical specification.

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59

Rota-Jet Diffusers

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61

Technical Data Rota-Jets

62

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Technical Data Rota-Jets

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63

Technical Data Rota-Jets 64

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Technical Data Rota-Jets

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65

Circular Face Air-Jets

66

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Air-Jets

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67

Air-Jets

68

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Technical Data Air-Jets

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69

Technical Data Air-Jets

70

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Multi-Cone Ceiling Diffusers

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71

Multi-Cone Tile Replacer Diffusers

72

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Multi-Cone Ceiling Diffusers

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73

Multi-Cone Ceiling Diffusers - Set Into Lay In Ceiling Panel

Max Neck Size = C x D - 200

74

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Multi-Cone Ceiling Diffusers Core Options

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75

Technical Data Multi-Cone Diffusers

76

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Technical Data Multi-Cone Diffusers

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77

Technical Data Multi-Cone Diffusers

78

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Technical Data Multi-Cone Diffusers

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79

Technical Data Multi-Cone Diffusers (Extract)

80

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Perforated Diffusers

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81

Technical Data Perforated Diffusers

82

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Technical Data Perforated Diffusers

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83

Curved Vane Diffusers

84

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Angled Vane Diffusers

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85

Curved Vane Diffuser Core Options

Angled Vane Diffuser Core Options

86

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Technical Data Curved / Angled Vane Diffusers S240V Curved Vane Diffusers S940V Angled Vane Diffusers - Multiply Throw x 0.8 and -2NC

T. 01457 861 538

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87

Circular Multi-Cone Diffusers

88

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Technical Data Circular Multi-Cone Diffusers

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89

Technical Data Circular Multi-Cone Diffusers

90

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Fixed Circular Diffusers

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91

Technical Data Fixed Pattern Circular Diffusers 92000 / 92100

92

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Air Valves

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93

Air Valves Extract

94

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Air Valves Supply

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Polypropylene Air Valves

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95

Laminar Flow Diffusers

96

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Laminar Flow Diffusers

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97

Technical Data Laminar Flow Diffusers

98

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Fixed Blade Swirl Diffusers

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99

Fixed Blade Swirl Diffusers

100

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Swirl Diffusers

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101

Swirl Diffusers

102

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Swirl Diffusers

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103

Swirl Diffusers

104

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Swirl Diffusers

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105

Perforated Face Swirl Diffusers

106

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High Capacity Swirl Diffusers

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107

High Capacity Swirl Diffusers

* Note 88H20 and 88B20 H= D + 175 88P20 H= D + 150 1

108

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Floor Swirl Diffuser Description

Designed for supply air applications, the floor swirl diffuser is suitable for installing into floors with a pressurised void, or can be ducted using an additional plenum box.

The diffuser includes an integral baffle, which can be adjusted to provide horizontal or vertical discharge patterns, along with a combined damper and dust basket.

Construction

The face plate and mounting ring are manufactured from cast aluminium, while the dust basket and baffle are formed from sheet mild steel.

The diffuser is supplied complete with fixing cleats to suit a floor thickness up to 45mm.

Finish

The face plate is plain cast aluminium as standard, or can be polyester powder coated as required. The rear dirt collection basket and baffle arrangement are powder coated matt black as standard.

Size and Weight

The diffuser is available in size 200mm dia only and weighs 1.4kg.

Size

ØA

ØB

ØC

E

200

236

190

160

19

ØD

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Floor Swirl Diffuser - DN200 + Selection Data

DN200 + SELECTION DATA

q (l/s)

14

16

20

25

30

40

Lt Horizontal (M)

0.5

0.6

0.7

0.9

1.1

1.4

Lt Vertical (M)

0.62

0.72

0.9

1.1

1.3

1.8

Ps (Pa)

13

16

26

40

60

105

NC Horizontal Throw

<15

15

22

26

32

45

NC Vertical Throw

<15

<15

15

20

25

33

Pressure drop figures given above are with the combined dust basket damper set to the fully open position and with the diffuser set to a horizontal throw pattern. Apply a correction factor of Ps X 0.9 for vertical throw settings.

Damper adjustment will influence the pressure drop and noise figures. Apply the following correction factors: Damper position

50% Open 25% Open

Ps X 1.4 + 2 NC Ps X 2.0 + 8 NC

Throw values given are at 0.5 M/s Vt and are valid for horizontal throws with a Td-10oC to 20oC. Vertical throws will reduce when used for cooling, in this case apply the following factors.

110

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Td 0o

Lt X 1

-4o

-6o

-8o

-10o

Lt x 0.7

Lt x 0.6

Lt x 0.5

Lt x 0.45

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Displacement Diffusers Description

GDL’s range of high quality displacement diffusers are designed to introduce cool clean air into the occupied zone at low level.

By introducing air at low level and at low velocity, the air ‘pools’ at floor level rather than mixing with the room air. As the room air is warmer than the incoming air it is displaced to high level where it can be extracted, thus creating a layer of cool clean fresh air at occupancy level.

Construction

Manufactured from perforated mild steel sheet with mild steel capping and plinth.

The units are polyester powder coated to RAL9010 white as standard, other colours are available on request. Stainless steel construction is available as an option, these will usually be manufactured in grade 304 Stainless and finished to a dull polish. All units can be reinforced for use in areas where a more robust diffuser is required.

Duct covers can be provided when required.

Size

A large selection of shapes and sizes are available, including square, round, half round and bow front, as well as column surrounds. We can also manufacture bespoke units to suit your application. Please contact our sales office to discuss your size and shape requirements.

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111

LOUVRES

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

louvres www.gdl.co.uk

GDL AIR SYSTEMS LTD

30mm Weather Louvres Description

For intake or extract air, the 45째 blades are fixed at 30mm centres and have excellent integral rain defence features. Suitable for external mounting and designed for smaller louvre panels.

Construction

From extruded aluminium sections, frame and blades 1.6mm thick. Hairline mitres mechanically held. Fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 150 x 150 to 1200 x 1200, concealed rear mullions when width exceeds 900mm.

Weight approximately 11.5kg/m2.

Free area 50%.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. WG050+0C 500 x 300.

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50mm Single Bank Weather Louvres Description

For intake or extract air, the 45째 blades are fixed at 50mm centres and have excellent integral rain defence features.

Heavy duty construction allows large panels to be produced with unbroken blades.

Larger areas can be covered using multiple panel assemblies which will incorporate concealed rear mullions to give continuous blade appearance throughout.

Construction

From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction.

Fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 600 x 600 to 3000 x 2000 in a single unit. Larger sizes are available in multiple units. Concealed rear mullions when width exceeds 1200mm.

Average weight: 12.5kg/m2.

Average free area: 48%.

Rain Defence

The 50mm louvre system has been tested by BSRIA to European standard EN13030:2002 and achieves Class C (80 - 94.9 % effectiveness).

Airflow Performance

Tested to EN13030:2002 the following aerodynamic coefficient is achieved : Intake ~ 0.253

Options

Matt black rear blanking panels Insulated blanking panels (Thermal & Acoustic) Mitred corners Guards: Insect screen (Fixed or Removable), Security Special shapes, Circular, triangular etc.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. W5050+0C 2500 x 1500

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50mm Single Bank Weather Louvres

Size is expressed as ‘A’ x ‘B’ and relates to the nominal opening size into which the louvre is to be offered. A manufacturing size reduction tolerance is provided. Dimension ‘A’ (Width) should be stated first followed by dimension ‘B’ (Height). * For louvres of 1200mm wide and over, heavy duty blade support mullions are incorporated to the rear. Louvre depth increases to dimension (*).

W5050

W5250

Flanged Frame

W4050

Recessed Frame

116

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Flanged Frame: Multi-Panel with continuous blade appearance

W4250

W1050

Recessed Frame: Multi-Panel with continuous blade appearance

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Reversed Angle Frame

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Technical Data 50mm Single Bank Weather Louvres i) Data is based upon louvres fitted with a rear bird guard / debris screen.

With an insect screen fitted the free area will be reduced by approximately 15%. ii) To minimise the risk of rain ingress, intake louvres should be selected against a max face velocity of 1.5M/s. iii) Pressure drops are total, given in Pascals, and based on air density of 1.2Kg/M3. iv) NC ratings shown are given for general guidance only.

Selection Procedure a)

Air Volume (M3/s) = Louvre Face Area (M2) Face Velocity (M/s) b) Determine the air volume flow rate required to pass through the louvre (M3/s). c) Determine the maximum acceptable pressure drop (pa). d) From the adjacent chart look up face velocity (M/s) against maximum pressure drop. e) Divide air volume by face velocity to give required louvre face area.

Selection Example

a) Size a W5 (50mm blade pitch) louvre to intake 2.0M3/s at 40 Pascals total pressure. b) At 40 Pa, a â&#x20AC;&#x2DC;Face Velocityâ&#x20AC;&#x2122; of 2.0M/s is given in the adjacent pressure drop graph; thus apply the formula as follows: 2.0 Air Volume (M3/s) = 1.0M2 Louvre Face Area 2.0 Face Velocity (M/s)

c) Select a square or rectangular size to give the above face area, e.g. 1100w. x 900h.

Louvre Screening 50mm & 75mm louvres can be manufactured to form visual screening enclosures for applications such as roof top plant installations or bin store compounds.

Depending on the size and application the screen can be either fixed back to an existing building structure, or providing a suitable base is available, a steel support framework can be offered to provide a free standing enclosure. Doors can be incorporated where access is required to a fully enclosed area.Other options include acoustic blanking, special shapes, openings for ductwork penetrations etc.

Louvre screening is supplied in multiple site assembled panels therefore there are virtually no size or shape constraints. Contact GDL technical sales to discuss specific applications.

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50mm & 75mm Weather Louvres Multi-Panel Options

1

2

118

Multi-Panel Narrow Line Face Mullion

Type

Dim ‘a’ (mm)

W51 W41 W11 W71 W61

10 10 10 14 14

Multi-Panel Concealed Rear Mullion

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Type

Dim ‘d’ (mm)

W52 W42 W12 W72 W62

118 114 90 118 114

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50mm Double Bank Weather Louvres Description

For intake or extract air, the 45째 blades are fixed at 50mm centres and arranged in double bank formation to offer higher levels of rain defence effectiveness.

Heavy duty construction allows large panels to be produced with unbroken blades. Larger areas can be covered using multiple panel assemblies which will incorporate narrowline visible mullions.

Construction

From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction.

Fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 600 x 600 to 3000 x 2000 in a single unit. Larger sizes are available in multiple units. Concealed rear mullions when width exceeds 1200mm.

Average weight: 25.0 kg/m2.

Average free area: 48%.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. 5WA4M+0C 2500 x 1800

5WA4M

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Combined Intake / Discharge Louvres Description

This unique louvre offers both air intake and discharge within the same panel.

The warm discharged air is directed upwards at 45° avoiding short cutting and cross contamination of the incoming supply air in the lower louvre section (see detail below).

Heavy duty construction allows large panels to be produced with unbroken blades.

Larger areas can be covered using multiple panel assemblies which will incorporate narrowline visible mullions.

Construction

From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction.

Fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 600 x 600 to 3000 x 2000 in a single unit. Larger sizes are available in multiple units. Concealed rear mullions when width exceeds 1200mm.

Average weight: 19.75kg/m2.

Average free area: 48%.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT AND DIM ‘C’ (VDT) e.g. 1 Qty. 57WA1M+0C

2500 x 1800 - 800 VDT

57WA1M

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60mm Weather Louvres Description

For intake or extract air, the 45째 blades are fixed at 60mm centres and have excellent integral rain defence features.

Suitable for external mounting and is economically priced.

Construction

From extruded aluminium sections, frame and blades 1.6mm thick. Hairline mitres mechanically held, fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 300 x 300 up to 2500 x 1800. Concealed rear mullions when width exceeds 1200mm.

Weight approximately 12kg/m2.

Free area 48%.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. WJ050+0C 1500 x 1000.

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75mm Single Bank Weather Louvres Description

For intake or extract air, the 45째 blades are fixed at 75mm centres and have excellent integral rain defence features.

Heavy duty construction allows large panels to be produced with unbroken blades.

Larger areas can be covered using multiple panel assemblies which will incorporate concealed rear mullions to give continuous blade appearance throughout.

Construction

From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction.

Fitted as standard with rear galvanised steel bird mesh screen.

Size and Weight

From 600 x 600 to 3500 x 3500 in a single unit. Larger sizes are available in multiple units. Concealed rear mullions when width exceeds 1200mm.

Average weight: 12.75kg/m2.

Average free area: 48%.

Rain Defence

The 75mm louvre system has been tested by BSRIA to European standard EN13030:2002 and achieves Class C (80 - 94.9 % effectiveness).

Airflow Performance

Tested to EN13030:2002 the following aerodynamic coefficient is achieved : Intake ~ 0.258

Options

Matt black rear blanking panels Insulated blanking panels (Thermal & Acoustic) Mitred corners Guards: Insect screen (Fixed or Removable), Security Special shapes, Circular, triangular etc.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. W7050+0C 3000 x 2000

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75mm Single Bank Weather Louvres

Size is expressed as ‘A’ x ‘B’ and relates to the nominal opening size into which the louvre is to be offered.

A manufacturing size reduction tolerance is provided.

Dimension ‘A’ (Width) should be stated first followed by dimension ‘B’ (Height).

Louvre blades are supported at a maximum of 1200mm centres. Multi-Panel louvres and panels exceeding 1200mm, incorporate heavy duty rear mullions and blade support clips to give continuous line appearance from the face. These are accommodated within the frame shown above and do not increase the depth dimension of the louvre.

W7050 / W7250

W6050 / W6250

Flanged Frame

Recessed Frame

Technical Data

i) Data is based upon louvres fitted with a rear bird guard / debris screen.

With an insect screen fitted the free area will be reduced by approximately 15%. ii) To minimise the risk of rain ingress, intake louvres should be selected against a max face velocity of 1.5M/s. iii) Pressure drops are total, given in Pascals, and based on air density of 1.2Kg/M3. iv) NC ratings shown are given for general guidance only.

Selection Procedure a)

Air Volume (M3/s) = Louvre Face Area (M2) Face Velocity (M/s) b) Determine the air volume flow rate required to pass through the louvre (M3/s). c) Determine the maximum acceptable pressure drop (pa). d) From the adjacent chart look up face velocity (M/s) against maximum pressure drop. e) Divide air volume by face velocity to give required louvre face area.

Selection Example

a) Size a W7 (75mm blade pitch) louvre to exhaust 5.0M3/s at 70 Pascals total pressure. b) At 70 Pa, a ‘Face Velocity’ of 2.75M/s is given in the adjacent pressure drop graph; thus apply the formula as follows: 5.0 Air Volume (M3/s) = 1.8M2 Louvre Face Area 2.75 Face Velocity (M/s) c) Select a square or rectangular size to give the above face area, e.g. 1800w. x 1000h.

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Weather Louvre Fixing Options

Fixings by installers via positions indicated in situ.

From the face of the louvre it is possible to fix between the louvre blades via the side frames.

Use code +0 as the 6th digit of the product coding.

Final sealing by installers.

25mm or 28mm glazing bar welded around the perimeter of louvre frame.

Suitable for double glazing frame applications.

Available on louvre types ‘W4’ and ‘W6’.

Specify the overall glass size which the louvre is to replace and glass thickness (25mm or 28mm)

Pre-punched or drilled flange holes to take No.8 self-tapping screws.

Hole position at the discretion of the factory, unless stated otherwise.

Fixing style ‘+2’ is intended for the larger sized louvre panel with either flanged framing or recess style frame. Specially formed ‘Tee bolts’ traverse within the track at the rear of frame. Bolts and brackets supplied but quantity at the factory’s discretion.

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Fixing style ‘+4’ is ideal for small to medium sized louvre panels. Brackets are of 1.6mm galvanised sheet steel folded but undrilled. Screws and bolts supplied by others.

Brackets should be affixed direct to rear of louvre frame by self-tapping screws. The quantity of brackets is at the factory’s discretion (minimum 4 No.)

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Louvre Doors Description

For intake or extract air, the louvre doors are available in 50mm pitch or 75mm pitch blades and in single or double leaf.

Either with flanged frame or recessed frame, the louvre doors are robustly manufactured with optional threshold details.

Door furniture and ironmongery can generally be provided to suit specific needs and generally include optional mortice locks, door stays, panic push bars and handles.

Construction

From extruded aluminium sections, frame 5.0mm thick, blades 1.6mm thick. All frames are fully welded construction fitted as standard with rear galvanised steel bird mesh screen.

Euro profile cylinder mortice lock and stainless steel hinges with ball bearing washers are fitted as standard and plated brass shoot bolts are fitted as standard to one leaf of double doors.

Size and Weight

Generally to suit individual door openings or can be incorporated within large louvre sections.

Average weight: 20.0kg/m2.

Average free area: 40%.

Rain Defence

The 50mm & 75mm louvre systems have been tested by BSRIA to European standard EN13030:2002 and achieve Class C (80 - 94.9 % effectiveness).

Airflow Performance

Tested to EN13030:2002 the following aerodynamic coefficient is achieved: 50mm Intake ~ 0.253.

75mm Intake ~ 0.258.

Options

Matt black rear blanking panels Insulated blanking panels (Thermal & Acoustic) Guards: Insect screen (Fixed or Removable) Panic bars, door stays, master keying, keypad locks, door closers, etc.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. D7WC1FM+0C 1800 x 2100

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Double Leaf Louvre Doors

D7WC1FM

D7WA1FM

Threshold Options

D7WA1FM

D7WC1FM

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Single Leaf Louvres Doors

S7WA1FM

S7WC1FM

Recommended Fixing Options

S7WA1FM

S7WA1FM

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Screen Louvre Doors Description

Single or Double leaf doors can be incorporated within a louvre system where access is required through the louvred area i.e.

Plantrooms, Bin Compounds, Plant Enclosures etc.

Construction

From extruded aluminium sections, frame 5.0mm thick, blades 1.6mm thick. All frames are fully welded construction fitted as standard with rear galvanised steel bird mesh screen.

Design / Installation

Single or double leaf access doors can be incorporated at any point within a 50mm or 75mm louvre system.

Fixed louvre sections are supplied in panel kit form with the door section supplied as a complete unit.

All necessary bolts and bracketry are supplied for ease of installation.

GDL engineers are available to discuss specific site requirements and also carry out site surveys where required.

CAD manufacturing / installation drawings will be provided for client approval. A qualified installation team is available.

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Turret / Penthouse Louvres Description

For supply or extract air, designed to offer weather protection to roof-top openings. Neat welded mitred corners and all welded concealed frame ensure maximum rigidity whilst an attractive appearance is completed with its pitch roof construction.

Construction

From extruded aluminium sections, frame 3.0mm - 5.0mm thick, with 1.6mm thick Blades. Aluminium roof 1.5mm thick, fully welded construction.

Size and Weight

There are virtually no size constraints as large units are produced in multiple sections.

Average weight: 60.0kg/m3.

Average free area: 50%.

Options

Extended turned down base angle Access doors Matt black rear blanking panels Insulated blanking panels (Thermal & Acoustic) Guards: Insect screen (Fixed or Removable)

Product Specification

The 50mm & 75mm louvre systems have been tested by BSRIA to European standard EN13030:2002 and achieve Class C (80 - 94.9 % effectiveness). 3WT High Performance

Blade Meets Class B.

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. 5WTB1M+0C 1800 x 900 x 600 H.

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Rain Defence

Airflow Performance

Tested to EN13030:2002 the following aerodynamic coefficient

is achieved : 50mm Intake ~ 0.253.

75mm Intake ~ 0.258.

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Turret / Penthouse Louvres Base Style Options

Type 5WTA 7WTA

Dim ‘p’ (mm)

Dim ‘d’ (mm)

50 75

76 102

Style ‘A’ Base

Style ‘B’ Base

Multiple Section Units

Larger sized penthouse louvres are supplied in multiple sections for site assembly.

All connecting mullions and penthouse roof fixing points are pre-drilled for ease of assembly.

Full bolt kit is provided for louvre assembly.

Where transport or access restrictions are a consideration, any sized penthouse unit can be supplied in kit-form sections upon request.

Recommended Fixing Options

Code ‘+0’ fixings (Standard)

Fixings through base angle into kerb/upstand.

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Code ‘+1’ fixings

Internal extended corner posts.

Larger units also have intermediate extended posts for additional fixings.

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Technical Data Turret / Penthouse Louvres i) Data is based upon louvres fitted with a rear bird guard / debris screen. With an insect screen fitted the free area will be reduced by approximately 15%. ii) Low, wide turret louvres perform more efficiently and offer better weather protection than tall narrow units. iii) To minimise the risk of rain ingress, intake louvres should be selected against a max face velocity of 1.5M/s. iv) Pressure drops are total, given in Pascals, and based on air density of 1.2Kg/M3. v) NC ratings shown are given for general guidance only.

Selection Procedure a)

Air Volume (M3/s) Multiply x 1.2 = Nominal Louvre Area (M2) Face Velocity (M/s) b) Determine the air volume flow rate required to pass through the louvre (M3/s). c) Determine the maximum acceptable pressure drop (pa). d) From the adjacent chart look up face velocity (M/s) against maximum pressure drop. e) Divide air volume by face velocity & multiply x 1.2 to give required nominal louvre area.

Selection Example

a) Size a 5WT1M Turret louvre to intake 6.0M3/s at the recommended face velocity of 1.5M/s. b) Determine the pressure drop from the adjacent chart. At 1.5M/s a pressure drop of 21pa is given. b) Apply the formula as follows: 6.0 Air Volume (M3/s) 4 x 1.2 = 4.8M2 Nominal Louvre Area 1.5 Face Velocity (M/s) c) Select a square or rectangular base size and calculate an appropriate height to give the above nominal louvre area; e.g. 1500 x 1500 x 800 H. A range of sizes is given in the table below for general guidance. In between sizes and larger sized units than shown are also available.

‘Nominal Louvre Area’ Values in M2 For Turret Louvres 5WT & 7WT Nom. Opening Size A x B (mm) 300 x 300 400 x 400 500 x 500 600 x 300 600 x 450 600 x 600 700 x 400 700 x 500 700 x 700 750 x 750 800 x 400 800 x 600 800 x 800 900 x 450 900 x 600 900 x 900 1000 x 500 1000 x 750 1000 x 1000 1100 x 1100 1200 x 600 1200 x 900 1200 x 1200 1500 x 750 1500 x 1000 1500 x 1250 1500 x 1500 1800 x 900 1800 x 1200 1800 x 1800 2000 x 1000 2000 x 1500 2000 x 2000

300 0.36 0.48 0.6 0.54 0.63 0.72 0.66 0.72 0.84

400 0.48 0.64 0.8 0.72 0.84 0.96 0.88 0.96 1.12 1.2 0.96 1.12 1.28

450

500

600

700

0.9 0.81 0.95 1.08 0.99 1.08 1.26 1.35 1.08 1.26 1.44 1.22 1.35 1.62 1.35

1.0 0.9 1.05 1.2 1.1 1.2 1.4 1.5 1.2 1.4 1.6 1.35 1.5 1.8 1.5 1.75 2.0 2.2 1.8 2.1 2.4 2.25 2.5 2.75 3.0 2.7 3.0

1.2 1.08 1.26 1.44 1.32 1.44 1.68 1.8 1.44 1.68 1.92 1.62 1.8 2.16 1.8 2.1 2.4 2.64 2.16 2.52 2.88 2.7 3.0 3.3 3.6 3.24 3.6 4.32 3.6

1.96 2.1 1.96 2.24 2.1 2.52 2.1 2.45 2.8 3.08 2.52 2.94 3.36 3.15 3.5 3.85 4.2 3.78 4.2 5.04 4.2

Height Dimensions (mm) 750 800 900

2.25 2.4 2.25 2.7 2.25 2.63 3.0 3.3 2.7 3.15 3.6 3.38 3.75 4.13 4.5 4.05 4.5 5.4 4.5 5.25 6.0

2.56 2.88 2.8 3.2 3.52 2.88 3.36 3.84 3.6 4.0 4.4 4.8 4.32 4.8 5.76 4.8 5.6 6.4

3.24 3.15 3.6 3.96 3.24 3.78 4.32 4.05 4.5 4.95 5.4 4.86 5.4 6.48 5.4 6.3 7.2

1000

1100

1200

1300

1400

1500

3.5 4.0 4.4 4.8 4.5 5.0 5.5 6.0 5.4 6.0 7.2 6.0 7.0 8.0

4.84 5.28 5.5 6.05 6.6 5.94 6.6 7.92 6.6 7.7 8.8

5.76 6.0 6.6 7.2 6.48 7.2 8.64 7.2 8.4 9.6

7.8 9.36 7.8 9.1 10.4

8.4 10.08 8.4 9.8 11.2

9.0 10.8 9.0 10.5 12.0

Unless specified otherwise, unit sizes shown in the shaded areas above and larger sizes will be manufactured in multiple sections for site assembly.

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Site Assembly Clip-On Louvres Description

For intake or extract air, the 45째 blades are fixed at 100mm centres and have excellent integral rain defence features. The louvre blade is snapped into position via the sprung blade clip fitted onto the rear mullions giving an attractive, continuous appearance.

Excellent for large louvred areas.

Construction

From extruded aluminium sections, mullions 3.0mm thick, flashing sections 2.0mm thick, blades 2.0mm thick. Louvres can be supplied in kit format for site assembly or in manufactured panels to suit irregular shapes.

Size and Weight

From 600 x 600 to see technical sales office.

Average weight: 100mm louvre 16.5kg/m2.

Average free area: 48%.

Rain Defence

The louvre system has been tested by BSRIA to European standard EN13030:2002 and achieves Class C - (80 - 94.9 % effectiveness).

Options

Matt black rear blanking panels.

Insulated blanking panels (thermal and acoustic).

Doors.

Mitred corners.

Guards: Insect screen (fixed or removable), security.

Special shapes, circular, triangular etc.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 1 Qty. 1WS59+2C 15000 x 3000

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Site Assembly Clip-On Louvre System

1WS59 1WS59 (100mm) (100mm)

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7WS59 (75mm)

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* For louvres using heavy duty blade support mullions. Louvre depth increases to dimension (*).

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Acoustic Weather Louvres Description

For supply or extract air, the Acoustic Louvre is designed to attenuate medium and high frequency noise breakout from ductwork and plantroom openings. Available in single bank or, for higher levels of attenuation, double bank.

Construction

Cases and blades formed from aluminium sheet. The attenuation material is glass wool faced with perforated sheet.

Size and Weight

From 500 x 500 to 1200 x 2000 in a single panel, large units are available in multiple units which bolt together in situ.

Single bank 39kg/m2 Double bank 79kg/m2 Free area approximately 40%

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. AAW1M+1D 1000 x 800.

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Technical Data Acoustic Louvres Table .1.

Acoustic Louvre - Static Insertion Loss (dB) Octave Band Frequency (Hz)

63

125

250

500

1K

2K

4K

Single Louvre Bank (Standard)

6

7

12

13

14

13

13

11

Double Louvre Bank (Optional)

8

10

18

19

21

20

18

16

8K

Table .2.

Face Velocity And Pressure Drop M/s Face Velocity

Pascals Single Bank

Pascals Double Bank

0.50

2

2

0.75

4

4

1.00

6

7

1.25

9

10

1.50

14

15

1.75

17

19

2.00

23

25

2.25

29

31

2.50

35

39

2.75

43

47

3.00

50

56

Selection: Recommended Face Velocity is 1.5 - 2.0 M/s Air Volume / Face Velocity = M2 Area of Acoustic Louvre

Acoustic Louvres Fixing Options

The loose flange option can be used either as a fixing method as shown in figures A and B or cosmetically to mask irregularities in the builders work opening, or to perform both functions as depicted in Fig.C. In either event the flange component is finished to match the unit and is furnished undrilled unless otherwise requested.

For large sized units the flange is supplied in sections.

To specify use fixing code +1 for the single flange option and code +2 for the double arrangement. The flange gauge is dependant upon the unit size.

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Moveable Blade Louvres Description

For intake or extract air, the moveable blades, when fully open, are in the conventional 45째 position and offer the same excellent weather protection as our standard louvres. The blades can be positioned anywhere between open and fully closed to suit client requirements. Operation is through optional manual or motorised controllers.

Construction

From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction.

Plated fittings and nylon bearings as standard.

Size and Weight

From 300 x 300 to 1200 x 2000 in a single unit. Visible face mullions are incorporated when width exceeds 1200mm to a maximum width of 2500mm. Larger sizes are available in multiple units. Weight is approximately 22.5kg/m2.

Free area is 46% when fully open.

Product Specification

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. 5M7W-AM+2C 1200 X 500.

Rain Defence

The moveable blade louvre system achieves class D (less than 80% effectiveness) and therefore should only be considered for areas where water ingress can be contained and removed or is not important.

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Moveable Blade Louvres Actuation Options 0 M7W

Rear linkage only

1 M7W

Simple rear lever device

2 M7W

Window pole type operation

3 M7W

Rear hand locking quadrant

4 M7W

Remote cable actuation

5 M7W

Electric motor operation

Code .1. Hand Operation Simple rear hand lever furnished as standard. To specify use code ‘1’ as the first digit of product code.

1M7W

Code .2. Pole Operation

Optional rear lever for window pole type operation. To specify use code ‘2’ as the first digit of product code.

Code .3. Locking Quadrant

Hand locking rear quadrant device.

The required blade position can be selected and locked via a wing-nut.

To specify use code ‘3’ as the first digit of product code.

2M7W

Code .4. ‘Teleflex’ Operation

Remote winder and cable operation giving smooth and positive control from open through to closed. To specify use code ‘4’ as the first digit of product code.

3M7W

Code .5. Electric Motor

Electric motor operation (Belimo or similar) factory fitted. On / Off, modulating or Spring-Return.

To specify use code ‘5’ as the first digit of product code and state operating mode & voltage.

4M7W

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Steel Security Bar Grille Description

For protection of ventilation or window openings having horizontal and vertical steel bars to prevent entry of personnel.

Suitable for wall, window or duct mounting.

Construction

From 40 x 40mm steel angle frame with 12 x 12mm steel bars at 100mm horizontal centres. All of fully welded construction.

Size and Weight

From 200 x 200 in 50mm increments. Weight of grille approx 18kg/m2. Free area Z1R50 70% Free area Z1S50 85%.

How to Specify

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. Z1S50+2C 600 x 600.

Z1

40 x 40 Steel Angle

Mounting R Recess 5 Surface Flange S Mounting

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12 x 12 Steel Security Bars

0

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Neck Fixings

C

PPC BS / RAL Colour

Flange Holes

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DAMPERS

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

dampers www.gdl.co.uk

GDL AIR SYSTEMS LTD

Duct Dampers

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ProductDuty Heavy name Duct Dampers Description

For control and balancing of supply and extract air systems where high pressures and velocities may be experienced. All dampers are fitted with opposed blade action, airfoil blades as standard.

The angles are adjusted via the robust, hand operated, lockable quadrant or with an optional extended spindle suitable for motorisation. The linkage system is enclosed and positioned out of the airstream. Casing leakage conforms to HVCA specification DW144 and Eurovent 2/2 classes A-C.

Construction

The casing is available fully flanged or with square/rectangular, circular or flat oval spigots and is manufactured from 1.2mm galvanised mild steel. Stainless steel casing is optional in grades 304, 316 or 430. The blades are galvanised mild steel with the option of extruded aluminium airfoil section or stainless steel grades 304, 316 or 430. Low leakage model is complete with blade and side seal gasket.

Size

From 100 x 100 to 2500 x 2000 in one module.

Multiple assemblies can be supplied.

How to Specify

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. DH603+0M 300 x 150.

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Fully Sealed Slimline Duct Dampers

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Low Leakage Insulated Dampers Description

For the modulating control of our Intelivent Wall Mounted units, this damper gives a low air leakage rate of below 5m3/hr/m2 and an insulation value of 1.8 watts/m2/째c. The linkage is enclosed and positioned outside the air system.

Construction

The casing is available fully flanged and is manufactured from 1.2mm galvanised mild steel. Stainless steel casing is optional in grades 304, 316 or 430. The blades are extruded aluminium airfoil section and insulated with polystyrene sections.

This model is complete with blade and side seal gasket.

Size

From 100 x 100 to 1450 x 1400 in one module.

Multiple assemblies can be supplied.

How to Specify

STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT Eg. 10Qty DL533+3M 1000 X 1000

Standard Flange Fixing Holes

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Technical Data Volume Control Dampers

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Heavy Duty Back Draught Dampers

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Heavy Duty Back Draught Dampers

Type DP 200 + DP210 if the neck is to fit within a structural opening, order the damper â&#x20AC;&#x201C; 20mm smaller than the opening size.

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Lightweight Pressure Relief Unit

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Lightweight Pressure Relief Unit

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Fire Dampers Low - Medium Velocity Fire Dampers Low - Medium Velocity Description Our range of fire dampers are designed to stop the spread of fire through ductwork, walls, floors and ceilings. The slimline range is especially suitable for narrow partitions or in-duct mounting. All fire dampers are fire tested to BS 476 part 20:1987 for four hour duration and are available with optional installation frame.

Construction The casing is manufactured from 1.2mm galvanised mild steel; whilst blades are rollformed from 0.8mm galvanised mild steel as standard. Grade 430 stainless steel casing and blades are available as an option.

Size From 100 x 100 to 1525 x 1525 in one module.

Multiple assemblies can be supplied.

How to Specify STATE QUANTITY, THE PRODUCT CODING AND THE SIZE WIDTH X HEIGHT e.g. 10 Qty. D18G0+00 300 x 150.

D18

D18GF

80

D18G0

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Fire Dampers Low - Medium Velocity Specifications & Testing

Fire Tested European Standard EN 1366 - 2:1999 International Standard ISO 10294 - 1:1996(E) Horizontal Test Report for 4 Hour Duration TE 201814 Vertical Test Report for 4 Hour Duration TE 201633 Fire Tested to BS 476 Part 20:1987 for a 4 Hour Duration Warrington Report WFRC C43264 (Stainless Steel Blades) Warrington Report WFRC C43265 (Galvanised Blades) 28 Day Salt Corrosion Test Chatfield Reports C7217 and C7218 refer Conformance to DW144 and Eurovent 2/2 as Relevant

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Fire Dampers Medium - High Velocity

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Fire Dampers Medium - High Velocity

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Technical Data Fire Dampers

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Intumescent Fire Block

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Fire / Smoke Control Dampers Description

Our range of fire and smoke dampers are designed to stop the spread of both fire and smoke thorough ductwork, walls, floors and ceilings. All fire/smoke dampers are tested and conform to the standards listed on page 164. All are suitable to work in conjuction with the BMS system and suitable damper control panel.

Function

The fire and smoke damper will be held in the fully open position for as long as the power supply is maintained to the unit. In the event of a fire, the built in thermal fuse will trip and cut off the electrical supply to the motor, causing the built in return spring to drive the damper closed.

The thermal fuse consists of a duct mounted probe with a replaceable fuse to detect internal duct temperature, and a non replaceable fuse element which detects ambient room temperature. Both fuses are rated at 72oc. A test button is included in the fuse unit for local testing of the damper operation.

Please note that where the dampers are for smoke evacuation purposes and are required to fail open, they wil not be fitted with thermal fuses.

Construction

The casing is manufactured from 1.2mm galvanised mild steel whilst the blades are double skin airfoil sections from 0.7mm galvanised mild steel or from 0.7mm stainless steel grade 430 or 316 optional.

Size

From 100 x 100 to 1000 x 1000 and from 100mm to 1000mm Ă&#x2DC;.

How to specify

STATE THE QUANTITY, THE PRODUCT CODING AND THE SIZE X WIDTH X HEIGHT e.g. 10 Qty. E3GHF+10+600x600

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Options And Weight Charts Fire / Smoke Dampers Control

3

5 6

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Technical Measurements Fire / Smoke Control Dampers

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Testing & Conformities Fire / Smoke Control Dampers

Testing & Conformities

Tested to EN1366-2 Tested/Assessed & Achieved Equivalent Classification to:

ES Classification (BS EN 1366-2/BS EN 13501-3) • BSB FSD-TD-HF fitted with HEVAC Frame ES240 (E240S) - Blockwork/Masonry wall ES240 (E240S) - Concrete floor • BSB FSD-TD-SA fitted with Sleeve & Angle Frame ES120 (E120S) - Dry Partition wall ES120 (E120S) - Blockwork/Masonry wall • BSB FSD-TD-BF fitted with Batt Frame ES120 (E1120S) - fitted with Firetherm Intubatt • BSB FSD-TD-CL fitted with Cleats ES120 (E20S) - Dry Partition wall • BSB FSD-TD-AF fitted with Angle Frame ES120 (E120S) - Dry Partition wall ES Classification (BS ISO 10294-1/2) • As BS EN 1366-2/BS EN 13501-3 above

Integrity Only (BS 476-20/22 - ADB - fan off) • BSB FSD-TD fitted with HEVAC Frame 240 mins - Blockwork/Masonry wall 240 mins - Concrete floor • BSB FSD-TD fitted with Sleeve & Angle Frame 120 mins - Dry Partition wall 120 mins - Blockwork/Masonry wall • BSB FSD-TD fitted with Cleats 120 mins - Dry Partition wall 120 mins - Blockwork/Masonry wall 120 mins - away from wall associated with fire resisting ductwork • BSB FSD-TD fitted with Z2000 Frame 240 mins - Concrete floor 240 mins - Blockwork/Masonry wall Corrosion Testing (ASTM B117) • Tested and satisfies LPS 1162

FSD-TD Blade Leakage (BS EN 1751) • Class 2

Casing Leakage (BS EN 1751) • Class C

Aerodynamic Testing (BS EN 1751) • Tested

Regulations and Standards Approved Document B: Fire safety (ADB) ADB is the UK government's guide to fulfilling the Building Regulations in terms of fire safety.

It is available as a free download from the planning portal website.

It gives clear guidance on where fire dampers are to be used and what their performance or classification shall be. The GDL Unit fulfils the ES classification and reference should be made to the model section to confirm exact time periods. These will generally be 120 minutes, but may be up to 240 minutes.

Health Technical Memo 05/02 (HTM05/02) HTM05/02 is the Department of Health Firecode - fire safety in the NHS: Guidance in support of functional provisions for healthcare premises.

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It basically underlines the requirements stated in ADB, requiring fire damper testing to BS EN 1366-2 and classification to BS EN 13501-3 - ES for escape routes etc).

It supersedes HTM81 and should be read in conjunction with HTM2025: Ventilation in healthcare premises, as it gives guidance on maintenance and testing.

Building Bulletin 100 BB100 is the Department for Children, Schools and Families document on Fire safety in schools.

It basically underlines the requirements stated in ADB, requiring fire damper testing to BS EN 1366-2 and classification to BS EN 13501-3 - ES for escape routes etc).

It also states: ‘For property protection, fire dampers should also satisfy LPS 1162’.

Regulatory Reform (Fire safety) Order (RRFSO) This is the regulatory requirement that allows people to self fire certificate their buildings.

There are requirements for keeping testing and maintenance records for all passive fire protection equipment, which includes fire dampers.

BS EN 1366-2 The fire resistance test standard for fire dampers.

BS EN13501-3 The fire resistance classification standard that includes fire dampers.

BS EN 1751 The standard for aerodynamically testing dampers. This includes both casing leakage (as DW 144 requirements), blade leakage, torque and heat transfer.

Other Publications

DW 144 (HVCA) This states the general requirements for HVAC ductwork, including the use of fire dampers. It also states ductwork leakage limits. The GDL Unit fulfils the requirements of classes A, B & C.

DW 145 (HVCA) This document will give guidance on the whole process of the selection and installation of fire dampers, with responsibilities and project planning and guidance.

The Grey Book (ASFP) This gives further guidance on the application and installation of fire dampers.

Scotland These are technical standards (AMD’s).

They give similar guidance to ADB.

They already include direct references to the application of European standards. They are obtainable as a free download from the Scottish Executive website.

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Elevated Temperature / Smoke Control Dampers Description

Our range of smoke control dampers are suitable for installing into low to medium velocity ductwork to perform as a volume control damper, and in the event of a fire, to prevent the spread of hot or cold smoke through the ventilation system. They can also be adapted for use in smoke ventilation shafts in both 1.0m2 and 1.5m2 free area sizes with matching grilles to suit.

The damper has been high temperature tested to 800 oC for 120 mins.

Construction

The case is manufactured from 1.2mm galvanised mild steel, whilst the blades are double skin aerofoil section with a fish tail interlocking design from 0.7mm galvanised mild steel.

Stainless steel blades in grade 430 or grade 316 are optional.

Size

Square and Rectangular sizes from 100mm x 100mm to 1200mm x 1200mm in infinite increments. Round and Flat Oval sizes from 100mm dia to 1200mm dia.

For larger sizes than those listed above the dampers will be supplied in multiple sections.

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Elevated Temperature / Smoke Control Dampers

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Combined Fire Damper / Plenum Box

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Combined Fire Damper / Plenum Box

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SOLAR SHADING

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

solar shading www.gdl.co.uk

GDL AIR SYSTEMS LTD

Intelishade Solar Shading - Horizontal Fixed System Intelishade – Solar Shading

We have developed a range of architectural standard and bespoke solar shading systems designed to enhance and shade the most elegant of buildings. Our Intelishade systems are a part of our ‘Inteligent Solutions’ range that offer low carbon, innovative alternatives powered purely using natural energy sources.

intelishade

*

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solar shading range by GDL Air Systems Ltd

horizontal

vertical

motorised

It Is increasingly important for buildings to run effectively and sustainably with low energy consumption and operating costs, yet maintain the required aesthetic design. Our Intelishade range meets all the crucial requirements necessary for an aesthetically pleasing low carbon solution.

Description

The Horizontal Solar Shading System provides excellent shading during the summer months primarily on the south elevations where the higher sun angles are blocked reducing both glare and solar heat gain.

Construction

Support frame manufactured from extruded aluminium in either a polyester powder finish or anodised finish.

Alternative support systems can be provided in polished or brushed stainless steel to cater for variation in loads and environmental conditions.

Traditional single skinned either extruded or fabricated blades have a lighter feel to them but as a consequence are less rigid. The reduction of rigidity makes them more applicable to short spans between supports (generally spans up to 1200mm).

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Horizontal Solar Shading Systems

Primarily used for Southern elevations to protect against high sun angles.

Side arms or in most cases referred to as side ‘cassettes’ are an integral part of the feature of the system.

The cassettes come in various profiles to suit the requirements of the architects and engineers. The side arms are usually made from 6 -10mm thick aluminium finished to the client’s specification.

Additional diagonal support arms are required for larger projections and higher wind loadings.

Support arms are available in either powder coated aluminium or stainless steel.

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Intelishade Solar Shading - Horizontal Fixed System

Blade

Profile

A

B

ISE150 ISE165 ISE200 ISE250 ISE300 ISE442 ISE617

A mm

B mm

150 165 200 250 300 442 617

34 30 34 40 50 68.6 68.6

86.89 138.11

75 75

86.89 138.11

75 75

B

A

ISL75 ISL150

B

A

ISLC75 ISLC150

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Intelishade Solar Shading - Vertical Solar Systems Description

The Vertical Solar Systems provide excellent shading to the east and west elevations of the building catering for the lower sun angles. The same blade options are available offering the architect flexibility to design an aesthetic facade to the building while still providing excellent vision through the glazing.

Fixed Vertical

Motorised Shading

Motorised systems are designed to give uncompromised shading and daylight entry at all times of the year by tracking the suns rays throughout the day.

The systems are vertically mounted and can be powered by the sun itself using our solar cell control systems.

Motorised System

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Intelishade Solar Shading - Vertical Solar Systems Control Options

GDL Brightness Transmitter and Solar Power Unit The solar blades can be moved into the optimum position by proportional voltage using information from 8 separate sensors set at 45ยบ segments.

Installation / Bracketry

Standard bracketry is available to affix the Intelishade systems to most building types including: Brickwork * Cladding * Steelwork * Blockwork * Glazing Bracketry * Steelwork and Cladding Bracket

Product Specification

Please specify width and projection. e.g. ISE-M24200BALG+P

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natural ventilation www.gdl.co.uk

GDL AIR SYSTEMS LTD

NATURAL VENTILATION

GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

Natural Ventilation - Intelivent Range Natural Ventilation

Our Intelivent natural ventilation products are a part of our ‘Inteligent Solutions’ range that offer low carbon, innovative alternatives powered purely using natural energy sources.

The fundamental difference between more commonly used mechanical ventilation and natural ventilation is the use of encapsulated wind power to fully ventilate the building.

Our Intelivent range of Natural Ventilation solutions significantly lowers energy consumption, operating and maintenance costs within buildings. The Intelivent range includes a choice of natural ventilation solutions that harness both wind and solar power to ventilate the buildings.

The Intelivent Range

Our natural ventilation range consists of three primary devises the ‘Wall Unit’, the ‘Penthouse Turret’ and the ‘Solarstore’. All the components within the range work together or as stand alone products depending on the height and layout of the building.

Our Intelivent systems are ideally suited for both commercial and educational buildings. The concept of the system is to create a stack effect through the space and to control the incoming air temperature via the wall mounted heating element.

The systems are preferably controlled by wireless CO2 and temperature sensors providing user friendly controls.

The systems can be connected to any existing BMS or internet system.

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intelivent natural ventilation range by GDL Air Systems Ltd *

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wallunit penthouseturret solarstore solarpipe

Cost Effective

• Natural ventilation reduces the need for mechanical air conditioning.

• Low energy consumption.

• Low operating costs.

• Low maintenance costs.

• Night purging reduces day time cooling by refreshing the room with cooler night time air.

Sustainable and Eco Friendly

• By harnessing wind power & temperature buoyancy to ventilate the building.

• Increased control significantly reduces energy usage by monitoring CO2 levels.

• No fuels are necessary significantly contributing to energy conservation and carbon emission reduction.

Health Benefits

• Cool fresh air increases concentration levels due to the fresh supply of oxygen continually replacing any stale air.

• The occupant can control the temperature of the room to meet their requirements.

• Eliminates ‘sick building syndrome’.

• Increased security as there are no open windows.

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Intelivent Range - Wall Mounted Units Description

This unique design works as a front line heating system drawing incoming air into the building and is controlled via CO2 and temperature sensors. The Winter scenario allows the lower damper arrangement to fully open passing the heating coil, in contrast the summer scenario allows the lower and upper damper sections to fully open allowing fresh air to pass through. The front attenuator baffle gives additional noise reduction to the units.

Key Features

• Two section heater battery to give greater control and energy saving.

• Heater battery sited at low level to eliminate cold air sited at low level.

• Split damper giving greater control and reducing energy consumption.

• The units are controlled by CO2 emissions and temperature sensors or manual override.

• Optional noise attenuator.

• Bespoke wall sleeves to cover a range of wall thickness.

• Tamper proof fixings.

intelivent wallunit

*

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Options

Additional options ideally suited to the system include the controls package, the wire-less battery-less peripheral devices and the optional noise attenuator to further reduce noise levels.

Size and Weight

The Wall Mounted units can be manufactured to fit any bespoke size. For the purpose of obtaining test data the three ‘standard’ sizes are as follows: 1670 x 618 1360 x 618 910 x 618 For the Low Leakage Insulated Damper rates please see p148 for more information.

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A.

Weather Louvre

B.

Tight Shut-off Insulated Damper (vent)

C.

Tight Shut-off Insulated Damper (cooling)

D.

Acoustic Baffle

E.

Low Pressure Hot Water Heating Coil

F.

Fascia Grille

G.

Control Panel

H.

Low Pressure Hot Water Control Valve

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Intelivent Range Technical Data

intelivent

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Intelivent Technical Data

The data provided below is related to three unit sizes. The wall mounted units can be manufactured to fit any bespoke size.

1670 X 618

Entry Velocity of 0.45m/sec

Air Flow Ventilation Rate

0.15m3/sec

2.2 pa ∅p

Air Flow Cooling Rate

0.30m3/sec

4.2 pa ∅p

LPHW Heating Coil

4.5 KW

82°c - 72°c Water Flow

0.11 l/sec

1360 X 618

Entry Velocity 0.45m/sec

Air Flow Ventilation Rate

0.1m3/sec

2.2 pa ∅p

Air Flow Cooling Rate

0.19m3/sec

4.2 pa ∅p

LPHW Heating Coil

3.0kw

82°c - 72°c Water Flow

0.07 l/sec

910 X 618

Entry Velocity 0.45m/sec

Air Flow Ventilation Rate

0.07m3/sec

2.2 pa ∅p

Air Flow Cooling Rate

0.132m3/sec

4.2 pa ∅p

10.3k pa ∅p

6.5k pa ∅p

LPHW Heating Coil 2.5 KW All heating coils are sized to raise the ventilation rate by x 23C I.e –4°c to + 19°c.

82°c - 72°c Water Flow 0.06 l/sec 4.1k pa ∅p

Noise Resilience The chart below shows the noise reduction performance with 1 and 2 units installed in a facade wall of 15m wide x 3m high.

Damper Position

Number of Units 1 Unit

Within Facade 2 Units

Fully Open

24

21

Half Open

25

22

Fully Closed

34

31

These tests have been carried out on the A 1650 X 600 unit by the AIRO labs in Hertfordshire.

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Intelivent Range - Penthouse Turrets Description

Our natural ventilation split turrets are designed to offer a balanced supply of fresh air, whilst also having the ability to remove warm, stale air. Due to the effective internal split design within the turret unit and duct extension sleeve, the supply and extract air are kept separate, avoiding cross contamination.

intelivent penthouseturret

*

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The air is balanced through our motorised volume control damper which would be linked to our controls package.

The air is both distributed and extracted through a common adjustable blade, 4-way pattern diffuser. These units are ideally suitable in sports halls, gymnasiums and assembly areas.

Construction

From extruded aluminium sections, frame 3.0mm - 5.0mm thick, with 1.6mm thick blades. Aluminium roof 1.5mm thick fully welded construction.

Size & Weight

There are virtually no size restrictions on the units as manufacture of these can be undertaken in sections to facilitate both size requirements and location / lifting requirements.

Average Weight 60.0kg/m3 Average Free Area 40%

Penthouse Turret Technical Details

Rain Defence

Our high performance louvre blades will achieve Class A.

Airflow Performance

The air flow volume provided through the turret unit is dependant on the external wind speed but typically offer the following performance.

External Wind Speed M/S

Max Air Volume m3/sec/m2 of louvre.

2.0 4.0

0.2 0.6

Determination of Air Volume

This is determined by both the internal air temperature and CO2 Levels.

The intelligent controls & sensing devices determine the modulation and control of the dampers for the requirement of the given space area.

Options

Thermally lined internal splitter plates.

Guards (insect screen) removable.

Controls package (see separate data sheet).

Wireless battery-less peripheral devices.

User interfaces (separate data sheet).

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Intelivent Range - Solarstore Description

The Solarstore solution works on the same principal as our Penthouse Turret, however this option is powered by a photovoltaic cell located on the top of the turret.

The solar cell in this instance harnesses energy from the sun in order to drive the supply and extract fans allowing 24 hour ventilation.

intelivent solarstore

This innovative design breaks new ground in the solar energy free ventilation market.

Key Features

• • • • • •

Solar photovoltaic cell.

Power management module.

DC carbon fibre battery.

Dual DC reversible fan.

Wireless controller.

Wireless peripheral devices.

Standard Unit Complete with Solarstore Option

A.

Photovoltaic Solar Panel (South Facing)

B.

12v DC Extract Fan Unit Handling 0.5m3/Sec. Fitted to Rear of Extract Louvre

C.

High Performance Extract Louvre Mounted in Roof

D.

12v Rechargeable Battery

E.

Motorised Fully Sealed Insulated Low Leakage Damper

Diagram A

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Intelivent Product name Range - Solarstore Unit With Plate Heat Exchange Option

intelivent solarstore

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Diagram B

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Product Selection Table Intelivent Range

intelivent natural ventilation range by GDL Air Systems Ltd *

TM

wallunit penthouseturret solarstore solarpipe

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Intelivent Range - Solar Pipe Description

The roof mounted Solarpipe turret is designed to deliver natural daylight throughout buildings in areas such as corridors, stairwells, offices and class rooms. This system is often specified within educational, healthcare and commercial buildings.

intelivent solarpipe

*

TM

The purpose of this system is to diffuse natural light into the building eliminating the need for artificial lighting providing a sustainable an energy efficient alternative. Natural light enters the turret at roof level and is directed into the building via reflective tubing where the light is dispersed into the required areas.

The tube material is 99.7% reflective allowing maximum light transfer into the building. The Solarpipe is available in 250mm diameter to light upto 13sqm, 350mm diameter to light upto 22sqm and 530mm diameter to light upto 33sqm. Transition boxes are available to convert between sizes for drywalls and suspended ceilings.

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Intelivent Range - Solar Pipe Natural Ventilation & Lighting Combined

The Solarpipe can be used in conjunction with the penthouse turret to provide both lighting and ventilation requirements within the buildings. Our design team can size the turrets accordingly to meet the required light and ventilation needs for each specific space.

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Intelivent Range - Solar Pipe Penthouse Turret Components

Listed below are the components that comprise our Intelivent Penthouse Turrets inclusive of the Solarpipe system:

High Performance Natural Ventilation Turret

intelivent solarpipe

*

TM

Extruded aluminium 70mm high performance external weather louvre with extended turned down base angle and central apex roof.

Natural Ventilation Dampers

1.2mm aluminium blades with galvanised mild steel casing.

The depth of the damper is 120mm with 35mm flanges.

The damper includes a Belimo SM24-ASR fully modulating actuator with a maximum unit size of 1450mm x 1400mm.

Damper Connection Sleeve

Constructed from 1.2mm galvanised mild steel with fully welded and dressed joints. The casing is fully lined with 12mm Pyrosorb foam.

Internal Ceiling Grille

Our wide range of ceiling grilles and diffusers are available depending on the application, in most cases an eggcrate grille is used to diffuse the air and daylight.

The Solarpipe

The Solarpipe dome is located on the roof of the penthouse turret. The lens system in the dome captures as much natural daylight as possible this is then reflected down the tubing.

The Solarpipe system is available in 250mm diameter, 350mm diameter and 530mm diameter.

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Intelivent Range - Solar Pipe

intelivent solarpipe

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GRILLES | DIFFUSERS | LOUVRES | DAMPERS | SOLAR SHADING | NATURAL VENTILATION

accessories

GDL AIR SYSTEMS LTD

ACCESSORIES

www.gdl.co.uk

Grille & Diffuser Plenum Boxes

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Linear & Slot Diffuser Plenum Boxes

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Accessories

P

Also available as a Fixed Length Sleeve Type GF000+F0 with Flange at one end only and GF000+00 Plain Sleeve without Flanges.

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Nomenclature Volume

- q(l/s) - qm(l/s)

- Quantity of air in litres per second.

- Quantity of air per linear metre of long

Area

Velocity

- Vk(M/s)

- Vf(M/s)

- Vn(M/s) - Vt(M/s)

- Vr(M/s)

Throw

- Lt

- Air outlet jet velocity in metres per second

i.e. the velocity as measured with a velometer probe between the grille or diffuser vanes.

- The average face velocity as measured in metres per second across the gross core area.

- The average neck velocity in metres per second.

- Terminal velocity i.e. the air speed in metres per second measured at a given throw distance from an outlet source.

- Room velocity i.e. the air speed within the occupied zone which is approximately 50% of the terminal velocity value.

- Ld

- The gross core area (M ) of a product - Neck area (M ).

- The calculated free area of a product

- Ak

- Area factor (M ) relative to the outlet

2

2

(M2) +/-7.5% .

2

velocity Vk .

Pressure

-

Pa Pv Ps Pt Psn

Sound

- Pressure values (Pascals).

- Velocity pressure (Pascals).

- Static Pressure(Pascals).

- Total Pressure (Pv + Ps).

- Negative static pressure (Pascals).

- Isothermal termperature (the supply air

Temperature- Ti

- Td

being the same temperature as the room air).

- Temperature differential i.e. the difference in temperature range (°C) between the supply air and room air.

- Nc

- Noise criteria levels based on 8dB

- The length of throw distance in metres

of an airflow envelope from its source to a given Vt.

Drop

- Ac - An - Af

measured inside the frame.

length grilles and diffusers.

average room attenuation and sound power level (LW) 10-12 W.

- The drop distance of cool air mass as it

flows along its projected direction measured from the core centreline vertically to the lowest horizontal tangent to the air envelope (Vt 0.25M/s under isothermal conditions).

Deflection

- Da

- Deflection angle setting of adjustable

Size

- axb

- The aperture, nominal opening, duct or

grille vanes to deflect air flow.

plenum size to which the product is to be installed. A fitting tolerance is allowed for in manufacture.

Useful UsefulConversions Conversions

Useful UsefulEquations Equations Multiply By

Flow Rate - CFM CFM M3/s Litres/Sec

to to to to

M3/s Litres/Sec CFM CFM

0.00047 0.472 2119 2.12

Velocity

to to

M/Sec Feet/Min

0.0051 196.85

Pascals Inches W.G.

249 0.004

- Feet/min M/Sec

Pressure - Inches W.G to Pascals to

GDL AIR SYSTEMS LTD

www.gdl.co.uk

Q A V

= = =

VxA Q÷V Q ÷A

M3/S

=

KW 1.22 x

ACPH

=

Where Q is air volume M3/S. Where A is Area M2.

Where V is Velocity M/S. KW = M3/S x 1.22 x t

M3/S X 3600 Room Volume M3

t

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