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G rillesType AR AE

1/1.5/EN/2

Trox Espa a , S .A. Telfono 9 76 /50 02 50Telefax 976/50 0904

P o lg o no Ind us tria l C a rtuja B a ja w w w .t ro x. es

E-50720 Za ra goza e-ma il [email protected]

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Content Description Ejec uciones

2

Description 2

Cons truction 2

Ma teria l 3

Technica l Da ta 3Order deta ils 5

Description

G rilles a nd linea r grilles a re suitable for duc t, w a ll and floor

insta llation. They ma y be fitted straight into the duc t se ction,or alternatively, an installation subframe may be used, e.g.for installation into builders work.

To optimise a ir distribution, b a sic co nstruction . . .-A ma y b e

given with a rear a ir flow regula tor ...-AG , w ith blad es incoppo sitting the front.

Construction

Type ARReturn air grilles with fixed horizontal profiled blades.Available on request with spring clip fixing

Type AEReturn air grilles w ith front bo rder w ith fixed g rid b la de s .Available on request with spring clip fixing

Type AR

Type AE

Rear Assemblies Standard sizes

. . .-AG

H/L

H/L

20

13

13

13

27

11

11

38

38

27

3,5

22

17

H+5/L+5

H+28/L+28

H+30/L+30

225 325 425 525 625 825 1025 1225

125

225

325

425

525

L e nmm

Hen mm

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Materia l Technica l da ta

3

Material

Linea r grilles a re ma de from extrude d a luminium s ecions, with anatural a nodised finish E6-C-0, except AE, mad e in anod ise daluminium natural color.

The rear as se mblies are ma de from formed s heet s teel. Thesurface is phosphated treated and stove enamelled black(RAL 9005) using electro-dipcoat process.The insta llation sub fra mes a re mad e from formed, g alvanisedsheet steel (DIN 17 162).

Determination of volume flowThe volume flow ca n be d etermined by me a suring the a ir veloc ity usinga rotating vane anemometer. Measurements of air velocity should bemade between the blades at a number of positions to determine anarithmetic mean value veff.mean.

The vo lume flow is then:

[l/s] = veff.mean [m/s] x Aeff [m2] x f x 1000

[m3/h] = veff.mean [m/s] x Aeff [m2] x f x 3600

Nomenclature

in l/s : Tot a l volume flow

in m 3/h: Tota l volume flow

veff in m/s : Effective jet velocity

Aeff in m2: Effec tive outlet a rea

LWA in dB (A): S ound po wer level in dB (A) referto Aeff = 0,1 m2

LWNC : NC rating of sound power level

LW in dB /Oct.: Oc ta ve s ound pow er level ofregenerated noise ba sed onAeff = 0,1 m2

LpA, LpNC : A-weight ing NC rating in dB (A) or

NC L pA LWA 8 dBLpNC LWNC 8 dB

Effective outlet area

L x H Aeff in m 2

in mm AR AE

225 x 125 0,006 0,017

325 0,009 0,026

425 0,012 0,035

525 0,015 0,043

625 0,018 0,052

825 0,024 0,0701025 0,030 0,087

1225 0,036 0,104

325 x 225 0,020 0,053

425 0,027 0,070

525 0,033 0,088

625 0,040 0,106

825 0,053 0,141

1025 0,067 0,177

1225 0,080 0,212

425 x 325 0,042 0,106

525 0,052 0,133

625 0,063 0,160

825 0,083 0,213

1025 0,105 0,266

1225 0,125 0,320

625 x 425 0,086 0,213

825 0,113 0,285

1025 0,140 0,356

1225 0,170 0,428

1025 x 525 0,180 0,446

1225 0,210 0,535

Correction Factor -f-

Type f

AR 3,2

AE 1,6

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Tec hnica l da taType AR

4

1 Sound power level and pressure drop

2 Octave band sound power levels with hitand miss damper



Example

Data given:AR-AG /1025 x 125Effective outlet Area A

eff= 0,030 m2

Tota l volume flow = 200 l/sDa mper se tting 100 %

Dia gram 1: S ound pow er level and press ure drop

veff =

veff = = 6,7 m/s

LWA = 37 Pa (LWNC = 31 NC)!p t = 21 Pa

Ta ble pa ge 3: co rrec tion va luesLWA = 37 6 = 31 dB (A)LWNC = 31 6 = 25 NC

Aeff 1000

200

0,030 1000

Damper s etting 25 %

LWAen

dB(

A)

veff in m/s

Pressuredrop!p

tinPa


Octave band centre frequency in Hz

So

undpowerlevelL

W

indB/oct.



So

undpowerlevelL

W

indB/oct.



SoundpowerlevelL

Win

dB/oct.

Correction Values for Aeff

Aeff in m2 0,005 0,01 0,02 0,05 0, 1 0,2 0,4

LWA /LWNC 13 10 7 3 + 3 + 6

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Technica l da taType AE

5 Sound power level and pressure drop





LWAen

dB(

A)

veff in m/s

Pressuredrop!p

tin

Pa



SoundpowerlevelL

W

indB/oct.



So

undpowerlevelL

W

indB/oct.



SoundpowerlevelL

Win

dB/oct.

Correction values for Aeff

Aeff in m 2 0,005 0,01 0,02 0,05 0,1 0,2 0,4

LWA /LWNC 13 10 7 3 + 3 + 6

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Order details

Designchangesreserved

Allrightsreserved

TroxGmbH(2/2008)

6

Order codes These c odes need not to be c ompleted for sta nda rd products

/ / / / /

Type ARAE

Rea r Ass emb lies A AG

AR-AG 625 x 125 0 B11 S2 E4-C-32

Example

Make: TROX

Type: AR-AG /625 x 125

IEEOEEP

IEEOEEP

IEEOEEP

0 sta nda rd finish E6-C-0S1 powder coated to RAL...1)

S2 anod ised ac cording to Euro1)

Standard E4-C-31 to C-35

1) AE blades available only in grey color

IEEEEEEEOEEEEEEEP

0 Concealed fixing (Standard)A11 Conterpunched borderB11 Spring clip fixingIE

EEEEOEEEEEP

Statecolour

IEEOEEP

0 w ithout installation sub fra meA1 with installation subframe

Specification TextG rilles, a nd linear g rilles suitab le fo r supply o r return a ir forinstallation in walls, floors or cills. Borders (except for grille cores)with corner mitres and rear perimeter sealing strip -horizontal orvertical profiled front blades individually adjustable or fixed. Knockdown installation subframes for assembly on site by others,installation by visible screw fixing. For optimum air distribution,rear as semb lies are fitted to g rilles which ca n be ad justed directlyat the grille fac e w ithout demounting the face .

Material:

Grilles are ma de from e xtruded aluminium sec tions, with a naturalano dised finish E6-C-0, except AE blad es, mad e in anod iseda luminium na tural co lor.The rear a sse mblies are ma de from formed sheet steel. Thesurface is phosphated treated and stove enamelled black(RAL 9005) using electro-dipcoat process, resistant to saturatedenvironment for minimum of 100 hours without deterioration(DIN 50 017)

125 225 325 425 525

225

325

425

525

625

825

1025

1225

HL

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1_1-5_EN_2_AR_AE