Trox Technik AWT Manuel utilisateur

03/2017 – DE/en

Ventilation grilles for instal-

lation into walls, sills or rec-

tangular ducts

Type AWT

Ventilation grille with special profiled blades (rectangular cross section)

■Nominal sizes 325 × 125 – 1225 × 325 mm

■Volume flow rate range 17 – 950 l/s or 61 – 3420 m³/h

■Grille face made of aluminium with anodised finish

■Tested for installation in gymnasiums

■Front border with countersunk holes, 30 mm wide

Optional equipment and accessories

■Grille face in RAL CLASSIC colours

■Installation subframe

XXAWT testregistrierung

PD – AWT – 1

Ball impact resistant ventilation grille made of alumi-

nium, with fixed horizontal blades

Ventilation grilles for installation into walls, sills or rectangular ducts

General information

03/2017 –

AWT

DE/en

Type

AWT General information AWT – 2

Function AWT – 3

Technical data AWT – 6

Quick sizing AWT – 7

Specification text AWT – 8

Order code AWT – 9

Dimensions and weight AWT – 10

Product details AWT – 11

Installation examples AWT – 12

Installation details AWT – 13

Commissioning AWT – 14

Basic information and nomenclature AWT – 15

Application

– Type AWT ventilation grille to be used for

supply air or extract air

– For gymnasiums

– Meets the requirements for impact resistance

of DIN 18032, part 3

– Directed supply air discharge for mixed flow

ventilation

– For variable and constant volume flows

– For supply air to room air temperature

differences from –12 to +4 K

– For installation in walls, sills and rectangular

ducts

Special characteristics

– Fixed blades

– Countersunk holes

Nominal sizes

– Nominal length: 325, 425, 525, 625, 825, 1025,

1225 mm

– Nominal height: 125, 225, 325 mm

Other dimensions upon request

Parts and characteristics

– Rectangular profile border sections with

rounded edges

– Fixed horizontal blades

– Factory fitted perimeter seal

– Vertical centre mullion for nominal lengths over

625 mm

Attachments

– AG, AS, D, DG: For volume flow rate balancing

and for air direction control

Accessories

– Installation subframe: For the fast and simple

installation of ventilation grilles

Construction features

– Robust blades

– Front border with countersunk holes

Materials and surfaces

– Border and blades made of aluminium

– Border and blades anodised, E6-C-0, natural

colour

– P1: Border and blades powder-coated, RAL

CLASSIC colour

Standards and guidelines

– Sound power level of the air-regenerated noise

measured according to EN ISO 5135

Maintenance

– Maintenance-free as construction and

materials are not subject to wear

– Inspection and cleaning to VDI 6022

Page

PD – AWT – 2

Application

Description

Ventilation grilles for installation into walls, sills or rectangular ducts

Function

03/2017 – DE/en

AWT

Functional description

Ventilation grilles are air terminal devices for the

supply air and extract air of ventilation and air

conditioning systems.They direct the supply air

into the room.Ventilation grilles with adjustable

blades allow for adapting the discharge direction

to the local conditions.The result is a mixed flow

ventilation in comfort zones and industrial zones,

with good overall room ventilation.

Induction slows the airflow down, i.e. the airflow

velocity decreases as the distance from the grille

increases.The distance at which the airflow

velocity reaches a certain defined value, e.g.

0.2 m/s, is called throw distance. The supply air jet

from wall grilles that are installed near the ceiling

achieves a larger throw distance than a free jet

(from a grille that is not installed near the ceiling).

Single grilles, groups of grilles and continuous

horizontal runs all achieve different throw

distances.

In cooling mode it is necessary to take account of

the jet deviation towards the occupied zone, which

increases as the supply air to room air

temperature difference increases and the

discharge velocity decreases. In heating mode the

supply air jet deviates towards the ceiling.This

has no negative effect on the airflow velocity in the

occupied zone, but it may affect the complete

ventilation of the room.

PD – AWT – 3

Schematic illustration of a ventilation grille with longitudinal blades

①

②

③

①Frontborder

②Longitudinalblades

③Centremullion

Air pattern in cooling mode, with ceiling

effect, sectional view

Distancefromceiling≤0.3m

Air pattern in cooling mode, without ceiling

effect, sectional view

Distancefromceiling≤0.8m

Ventilation grilles for installation into walls, sills or rectangular ducts

Function

03/2017 –

AWT

DE/enPD – AWT – 4

Air pattern with ceiling effect, top view

Air pattern without ceiling effect, top view

Air pattern with ceiling effect, sectional view

Distancefromceiling≤0.3m

Air pattern without ceiling effect, sectional

view

Distancefromceiling≤0.8m

Air pattern with ceiling effect, group of grilles,

top view

Distancebetweensinglegrilles≥0.15×lS

Air pattern without ceiling effect, group of

grilles, top view

Distancebetweensinglegrilles≥0.2×lS

Ventilation grilles for installation into walls, sills or rectangular ducts

Function

03/2017 – DE/en

AWT

PD – AWT – 5

Several single grilles arranged in a row and with not

much distance between them have the same effect

as a continuous horizontal run.

Air pattern, group of grilles, top view

b < 0.1 × lS

Ventilation grilles for installation into walls, sills or rectangular ducts

Technical data

03/2017 –

AWT

DE/enPD – AWT – 6

Geometric free area

L [mm]

325 425 525 625 825 1025 1225

Ageo

mm m²

125 0.013 0.018 0.023 0.028 0.037 0.047 0.057

225 0.031 0.042 0.054 0.065 0.087 0.109 0.132

325 0.066 0.084 0.102 0.136 0.171 0.206

Effective air discharge area (supply air)

L [mm]

325 425 525 625 825 1025 1225

Aeff

mm m²

125 0.015 0.020 0.025 0.031 0.040 0.050 0.060

225 0.031 0.040 0.050 0.060 0.078 0.097 0.116

325 0.060 0.073 0.086 0.116 0.152 0.174

Effective area of extract air grille

L [mm]

325 425 525 625 825 1025 1225

Aeff

mm m²

125 0.011 0.015 0.018 0.023 0.029 0.036 0.043

225 0.023 0.029 0.036 0.043 0.057 0.071 0.078

325 0.043 0.052 0.063 0.083 0.104 0.122

Nominal sizes 325 × 125 to 1225 × 325 mm

Minimum volume flow rate 17 – 275 l/s or 61 – 990 m³/h

Maximum volume flow rate, with LWA max. 40 dB(A)

without attachments 95 – 950 l/s or 342 – 3420 m³/h

Supply air to room air temperature difference –12 to +4 K

Volume flow rates apply to supply air

Ventilation grilles for installation into walls, sills or rectangular ducts

Quick sizing

03/2017 – DE/en

AWT

PD – AWT – 7

× LWA = 40 dB(A) with unrestricted airflow+ LWA = 40 dB(A) with airflow restricted by 50 %

AWT, volume flow rate ranges

1225 × 325

1025 × 325

825 × 325

625 × 325

525 × 325

425 × 325

1225 × 225

1025 × 225

825 × 225

625 × 225

525 × 225

425 × 225

325 × 225

1225 × 125

1025 × 125

825 × 125

625 × 125

525 × 125

425 × 125

325 × 125

225 × 125

m3/h60 200100 500 1000 2000 5000

l/s15 20 50 100 200 500 1000 1500

Nenngröße

Ventilation grilles for installation into walls, sills or rectangular ducts

Specification text

03/2017 –

AWT

DE/en

This specification text describes the general

properties of the product.Texts for variants can be

generated with our Easy Product Finder design

programme.

Ball impact resistant ventilation grilles,

rectangular, made of aluminium, for supply and

extract air. Rectangular profile border sections

with rounded edges Preferably for wall and sill

installation but also suitable for rectangular ducts.

Ready-to-install component which consists of a

border and fixed horizontal blades.

Countersunk holes for fixing the grille to the

installation surface.

Meets the requirements of DIN 18032, part 3.

Sound power level of the air-regenerated noise

measured according to EN ISO 5135.

Special characteristics

– Fixed blades

– Countersunk holes

Materials and surfaces

– Border and blades made of aluminium

– Border and blades anodised, E6-C-0, natural

colour

– P1: Border and blades powder-coated, RAL

CLASSIC colour

Technical data

– Nominal sizes: 325 × 125 to 1225 × 325 mm

– Minimum volume flow rate (supply air):

17 – 275 l/s or 61 – 990 m³/h

– Maximum volume flow rate (supply air), at LWA

max. 40 dB(A) without attachments: 95 – 950 l/

s or 342 – 3420 m³/h

– Supply air to room air temperature difference:

–12 to +4 K

Sizing data

–  ____________ _______________________

[m³/h]

– Δpt___________ _______________________

[Pa]

Air-regenerated noise

– LWA___________ _______________________

[dB(A)]

PD – AWT – 8

Ventilation grilles for installation into walls, sills or rectangular ducts

Order code

03/2017 – DE/en

AWT

PD – AWT – 9

AWT

    

AWT – AG / 825×225 / A1 / P1 – RAL ...

Type

AWT Single grille

Attachments

AWithout (grille face only)

AG Damper unit, opposed action blades

DAir direction control, blades installed at 90°

to the front blades, independently

adjustable

DG D combined with AG

Nominalsize[mm]

L × H

Installationsubframe

No entry: none

A1 With

Exposedsurface

No entry: anodised, E6-C-0, natural colour

P1 Powder-coated, specify RAL CLASSIC

colour

Gloss level

RAL 9010 50 %

RAL 9006 30 %

All other RAL colours 70 %

Order example: AWT-AG/625×225/A1

Attachments Damper unit, opposed action blades

Nominal size 625 × 225 mm

Installation subframe With installation subframe

Exposed surface Anodised, E6-C-0, natural colour

Ventilation grilles for installation into walls, sills or rectangular ducts

Dimensions and weight

03/2017 –

AWT

DE/en

The weight table shows the available nominal

sizes

PD – AWT – 10

AWT

L [mm]

325 425 525 625 825 1025 1225

mm kg

125 1.3 1.6 2.0 2.3 3.0 3.6 4.3

225 1.9 2.4 2.9 3.4 4.4 5.4 6.4

325 3.2 3.8 4.5 5.8 7.1 8.5

Weights apply to ventilation grilles without attachments

AT, 30 mm wide front border

16,7

H + 5

H + 27

L + 27

45 7

L Nominal length

Vertical centre mullion if L > 625 mm

H Nominal height

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