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8/10/2019 ASLI 03 Return Air Grilles Set

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RETURN AIR GRILLES CONTENTS

RM Louver

RC Curve Blade Return Air Grille

RV Single Deflection Return Air Grille

RJ Curve Blade Return Air Grille

RY Transfer Grille RG Eggcrate Type Return Air Grille

RF Perforated Face Return Air Diffuser

CR Vent Louver

RK & RKC Perforated Face Return Air Diffuser

Return Air Grilles Accessories

CONTENTS

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

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RETURN AIR GRILLES

Materials RM-T Frame 0.7mm, blade 0.5mm SPGC galvanized steel. RM-S Frame 0.7mm, blade 0.5mm stainless steel SUS. 304. RM-A Extruded aluminium A6063.

Surface Finish RM-T Baked white powder coat as standard. RM-S Stainless steel original colour. RM-A Baked white powder coat or natural anodized.

Features RM-A weather louver type return air grille is an architectural exterior decoration

louver with is aero-dynamics blade design. Used commonly in outdoor air application, i.e. fresh air & exhaust air where

rain-proof is a concern. It is also used in door as return air application both

mounted on ceiling and wall. Blade spacing ranges from 33mm to 42mm. The grille will come in more sections for blade length that is more than 600mm. Approximately 50% free area.

Accessories G1 Opposed blade damper. R6 Insect nettings. D2 Square to round adapter.

RM Construction Illustrations

RM Louver

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RM Physical Dimension Unit:mmThickness D

Face Size

W+54H+54

W+60H+60

Frame BladeOrder Key

RM - T + 350 x 150 x G1

ModelMaterials

Accessories

HW

Materials

SPGC Steel

Stainless Steel SUS. 304

Extruded Aluminium A6063

Model

RM-T

RM-S

RM-A

0.7

0.7

1.0

0.5

0.5

1.0

BWall Size

W+20H+20

ADuct Size

W+10H+10

RM page 1 of 2

Locking mechanism underneathlouver blade at both sides of frame

Optional-RM(Removable)

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RETURN AIR GRILLES

RM Louver

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RM Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

800 X 600

1000 X 600

1200 x 600

1000 x 800

900 X 1000

1000 X 1000

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

62.213.554044648478644997250

108081

129652

16203

194454

216055

259256

276557

291658

388859

583262

777667

1036867

1296069

1555270

1728071

1944072

2160073

NC value is based on a room absorption of 10 dB, re 10 -12 watts.

51.559.64503854041720438104490045

108046

135047

162048

180049

216050

230451

243052

324053

486057

648061

864062

1080063

1296065

1440065

1620066

1800067

41.08.2360334323657638648397204086441

108042

129643

144044

172845

184346

194447

259248

388852

518456

691257

864058

1036860

1152060

1296061

1440062

3.50.757.031530378335043556736630377563894539

113440

126041

151242

161243

170044

226845

340248

453651

604853

756054

907255

1008056

1134057

1260058

30.555.72702632429432314863254033648348102597236

108037

129638

138239

145840

194441

291545

388847

518449

648050

777652

864053

972053

1080054

2.50.44.0225242702636028405294503054031675328103390034

108035

115235

121536

162037

243040

324042

432044

540045

648046

720047

810048

900049

20.252.61801821620288223242336024432255402664827720288642992229

97230

129631

194433

259237

345638

432039

518440

576041

648042

720043

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

0.48

0.6

0.72

0.8

0.9

1.0

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 200

1200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300

450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RM page 2 of 2

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RETURN AIR GRILLES

Materials RC-A Extruded aluminium A6063. RC-T Galvanized steel.

Surface Finish Baked white powder coat or natural anodized.

Features The shape of the curved blade is approximately one eighth of the circumference

of a circle. Suitable to install on wall for return air application. The grille will come in more sections for blade length that is more than 600mm.

Approximately 48% free area.

Accessories R6 Insect nettings. D2 Square to round adapter.

RC Construction Illustrations

RC Curve Blade Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RC Physical Dimension Unit:mmThickness D

Face Size

W+58H+58

W+60H+60

Frame BladeOrder Key

RC - A + 350 x 150 x R6

ModelMaterials

Accessories

HW

Materials

Extruded Aluminium A6063

Galvanized Steel

Model

RC-A

RC-T

1.0

0.8

1.2

0.7

BWall Size

W+20H+20

ADuct Size

W+10H+10

RC page 1 of 2

Optional-RC(Removable)

Removable Mechanism

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RETURN AIR GRILLES

RC Curve Blade Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RC Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

62.29.354042648448644697246

108046

129648

162050

194451

216052

259254

276555

291655

388856

583257

777659

NC value is based on a room absorption of 10 dB, re 10 -12 watts. Dash (-) in space indicates NC value less than 10.

51.556.54503754039720428104290042

108044

135044

162045

180046

216048

230448

243048

324049

486050

648051

41.04.1360304323257634648347203486436

108036

129638

144039

172841

184342

194442

259242

388842

518444

3.50.753.131523378255042956729630297563194531

113434

126034

151235

161235

170035

226836

340236

453638

30.552.22701732418432234862354023648248102597227

108027

129629

138229

145829

194430

291530

388831

2.50.41.5225112701236015405154501554017675188101990020

108022

115223

121523

162023

243023

324025

20.250.9180

-216

-288

-324

-360

-432

-540

-648

-720118641292213

97213

129614

194414

259215

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 200

1200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300

450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RC page 2 of 2

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RETURN AIR GRILLES

RV Single Deflection Return Fresh Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

Materials RV-T Frame 1.0mm, blade 0.35mm SPGC galvanized steel. RV-S Frame 0.7mm, blade 0.3mm stainless steel SUS. 304. RV-A Extruded aluminium A6063.

Surface Finish RV-T Baked white powder coat as standard. RV-S Stainless steel original colour. RV-A Baked white powder coat or natural anodized.

Features Model RV-A is made up of one set of individually adjustable horizontal

air foil blades. Model RV-A can also be used as supply air grille. It is in the same series as model GV. The grille will come in more sections for blade length that is more than 500mm. Approximately 83% free area when blades are fully open.

Accessories G1 Opposed blade damper. R6 Insect nettings. D2 Square to round adapter.

RV Construction Illustrations

RV page 1 of 2

Enlargement of Removable Mechanism

Optional-RV(Removable)

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RETURN AIR GRILLES

RV Single Deflection Return Fresh Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RV Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/S

Vel. Press(mmAq)Neg. SP(mmAq)CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMH

NCCMHNC

CMHNC

CMHNC

6

2.26.754039648417564386445

108045

129646

162046

194447

216048

259249

276549

2916

50388851

583253

777655

NC value is based on a room absorption of 10 dB, re 10 -12 watts. Dash (-) in space indicates NC value less than 10.

5

1.554.64503054031630347203690036

108037

135037

162039

180040

216042

230442

2430

42324043

486045

648047

4

1.03.0360234322550426576287202886430

108030

129632

144033

172834

184334

1944

34259235

388837

518439

3.5

0.752.231517378194412150423630237562594525

113426

126028

151229

161229

1700

29226830

340232

453633

3

0.551.72701132412378144321654016648188101897221

108021

129623

138223

1458

23194424

291525

388826

2.5

0.41.2225

-270

-315

-360

-450

-54011675118101390014

108015

115216

1215

16162017

243017

324019

2

0.252.8180

-216

-252

-288

-360

-432

-540

-648

-720

-864

-922

-972

-1296

-1944

-259212

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 2001200 x 125

900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300450 x 300

400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RV page 2 of 2

RV Physical Dimension Unit:mm

Thickness ADuct Size

W+10H+10

BWall Size

W+20H+20

DFace Size

W+54H+54

W+60H+60

Frame Blade Order Key

RV - T + 350 X 150 - G1

ModelMaterials

Accessories

HW

Materials

SPGC Steel

Stainless Steel SUS. 304

Extruded Aluminium A6063

Model

RV-T

RV-S

RV-A

0.7

0.7

1.0

3.4

0.3

3.8

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Features The shape of the curved blade is approximately one eighth of the circumference

of a circle. Suitable to install on wall for return air application. The grille will come in more sections for blade length that is more than 600mm. Approximately 50% free area.

RETURN AIR GRILLES

Materials RJ-A Extruded aluminium A6063.

Surface Finish Baked white powder coat or natural anodized.

Accessories R6 Insect nettings. D2 Square to round adapter.

RJ Construction Illustrations

RJ Curve Blade Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RJ Physical Dimension Unit:mmThickness D

Face Size

W+54H+54

Frame BladeOrder Key

RJ - A + 350 x 150 x R6

ModelMaterials

Accessories

HW

Materials

Extruded Aluminium A6063

Model

RJ-A 1.0 3.5

BWall Size

W+20H+20

ADuct Size

W+10H+10

RJ page 1 of 2

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RETURN AIR GRILLES

RJ Curve Blade Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RJ Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

62.29.354042648448644697246

108046

129648

162050

194451

216052

259254

276555

291655

388856

583257

777659

NC value is based on a room absorption of 10 dB, re 10 -12 watts. Dash (-) in space indicates NC value less than 10.

51.556.54503754039720428104290042

108044

135044

162045

180046

216048

230448

243048

324049

486050

648051

41.04.1360304323257634648347203486436

108036

129638

144039

172841

184342

194442

259242

388842

518444

3.50.753.131523378255042956729630297563194531

113434

126034

151235

161235

170035

226836

340236

453638

30.552.22701732418432234862354023648248102597227

108027

129629

138229

145829

194430

291530

388831

2.50.41.2225112701236015405154501554017675188101990020

108022

115223

121523

162023

243023

324025

20.250.9180

-216

-288

-324

-360

-432

-540

-648

-720118641292213

97213

129614

194414

259215

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 200

1200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300

450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RJ page 2 of 2

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RETURN AIR GRILLES

Materials RY-A Extruded aluminium A6063.

Surface Finish Baked white powder coat or natural anodized.

Features The blade is in the form of inverted-V louver. It has a sight-proof core design. Widely used in doors and partitions to allow air flow into or out of space. They are also used in theatres or dark room where light is not permitted to penetrate through the grille. Model RY has a more rigid frame & blade assuring durability & long service.

The grille will come in more sections for blade length that is more than 600mm. Approximately 59% free area.

Accessories R6 Insect netting.

RY Construction Illustrations

RY Transfer Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RY Physcal Dimension Unit:mmThickness D

Face Size

W+54H+54

Frame BladeOrder Key

RY - A + 350 x 150 x R6

ModelMaterials

Accessories

HW

Materials

Extruded Aluminium A6063

Model

RY-A 1.0 1.0

BWall Size

W+20H+20

ADuct Size

W+10H+10

RY page 1 of 2

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RETURN AIR GRILLES

RY Transfer Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RY Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150

250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMH

NCCMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

4.51.2529.840562486636486472965810

6597266

121567

145868

162069

194470

207370

218770

291670

437470

583272

NC value is based on a room absorption of 10 dB, re 10 -12 watts.

41.023.636058432595766064861720

6186462

108063

129664

144065

172866

184366

194466

259266

388866

518467

3.50.7518.131556378575045856758630

587565994559

113460

126061

151262

161262

170062

226862

340262

453663

30.5513.327050324514325348654540

54648548105497255

108056

129657

138257

145857

194457

291557

388858

2.50.49.322546270473604840549450

4954050675508105090050

108051

115251

121551

162051

243051

324052

20.255.918038216402884132442360

4243243540436484472045864459224697246

129646

194446

259246

1.50.163.413529162302163124332270

323243340534486345403564836691367293697236

145836

194446

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 2001200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RY page 2 of 2

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RETURN AIR GRILLES

Materials Grille frame: Extruded aluminium A6063. Eggcrate blade: 0.5mm Aluminium sheet.

Surface Finish Baked white powder coat as standard.

Features 12mm x 12mm x 12mm aliminum grid core. Model RG-A offers the largest free area for air transfer. Normally installed on ceiling. Approximetely 88% free area.

Accessories G1 Opposed blade damper. R6 Insect nettings. D2 Square to round adapter.

RG Construction Illustrations

RG Eggcrate Type Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RG Physical Dimension Unit:mmThickness D

Face Size

W+36H+36

Frame BladeOrder Key

RG - A + 150 x 150 x G1

ModelMaterials

Accessories

HW

Materials

Extruded Aluminium A6063

0.5 Aluminium Sheet

Model

RG-A 1.0 0.5

BWall Size

W+20H+20

ADuct Size

W+10H+10

RG page 1 of 2

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RETURN AIR GRILLES

RG Eggcrate Type Return Air Grille

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RG Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

62.26.154039648398643997239

108038

129638

162037

194437

216036

259236

276536

291635

388835

583234

777633

NC value is based on a room absorption of 10 dB, re 10 -12 watts.

51.554.24503854030720388103790036

108036

135035

162035

180035

216035

230434

243033

324033

486032

648031

41.02.7360364323657635648357203486434

108033

129633

144032

172832

184332

194431

259231

388830

518429

3.50.752.131534378345043456734630337563394532

113432

126032

151231

161230

170030

226829

340228

453627

30.551.52703332433432334863254031648318103097230

108030

129629

138229

145828

194428

291527

388826

2.50.41.1225312703136031405304503054029675298102890028

108028

115228

121527

162026

243025

324024

20.250.71802821628288283242826027432275402664826720268642592225

97225

129624

194423

259222

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 200

1200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300

450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RG page 2 of 2

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RETURN AIR GRILLES

Materials RF-T 0.5mm Perforated SPGC galvanized steel frame. RF-S 0.5mm Perforated stainless steel SUS. 304 frame. RF-A 0.5mm Perforated aluminium sheet frame.

Surface Finish RF-T Baked white powder coat as standard. RF-S Stainless steel original colour. RF-A Baked white powder coat or natural anodized.

Features A layer of pre-filter of thickness 6mm is on the perforated face of the diffuser. Suitable for the free return air application. Most suitable for T-bar ceiling installation. The model RF-A can just sit on the T-bar without any support. Approximetely 43% free area.

Accessories B-A Aluminium Ceiling Frame.

Standard Sizes 300 x 600(1' x 2'), 600 x 600(2' x 2')

RF Construction Illustrations

RF Perforated Face Return Air Diffuser

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RF Physical Dimension Unit:mmThickness Standard Size

(to suit T-bar)

300 x 600 (1' x 2')600 x 600 (2' x 2')

Frame BladeSPGC Steel

0.5 mmSPGC Steel

0.5 mmStainless Steel SUS.

304 0.5mm

Order Key

RF - A - G1

ModelMaterials

Accessories

Galvanized Steel

Aluminium A6063

Aluminium A6063

25 mm

15 mm

15mm

Model

RF-T

RF-A

RF-S

Frame Widht(W)

RF page 1 of 2

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RF Perforated Face Return Air Diffuser

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RF Performance Data

Neck Size mm

250 x 100200 x 125300 x 100200 x 150400 x 100250 x 150350 x 125300 x 150350 x 150250 x 200600 x 100400 x 150

NeckArea m2

Neck Vel. M/SVel. Press(mmAq)Neg. SP(mmAq)

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

CMHNC

62.212.854040648408644097240

108039

129639

162038

194438

216037

259237

276537

291636

388836

583235

777334

NC value is based on a room absorption of 10 dB, re 10 -12 watts.

51.559.04503954039720398103890037

108037

135036

162036

180036

216036

230435

243034

324034

486033

548032

41.05.8360374323757636648367203586435

108034

129634

144033

172833

184333

194432

259232

388831

518430

3.50.754.53153537835504355673563034

77563494533

113433

126033

151232

161231

170031

226830

340229

453628

30.553.32703432434432344863354032648328103197231

108031

129630

138230

145829

194429

291528

388827

2.50.42.4225322703236032405314503154030675308102990029

108029

115229

121528

162027

243026

324025

20.251.61802921629288293242936028432285402764827720278642692226

97226

129625

194424

259223

0.025

0.03

0.04

0.045

0.05

0.06

0.075

0.09

0.1

0.12

0.128

0.135

0.18

0.27

0.36

600 x 125500 x 150700 x 125550 x 150750 x 125660 x 150900 x 125750 x 150850 x 150600 x 200

1200 x 125900 x 150900 x 200750 x 250750 x 350660 x 4001200 x 300900 x 400

350 x 200300 x 250400 x 200350 x 250450 x 200400 x 250450 x 250350 x 300500 x 250400 x 300

450 x 300400 x 350600 x 300450 x 400600 x 450550 x 500750 x 450600 x 600

RF page 2 of 2

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Materials CR-A 1.0mm Aluminium sheet roll formed.

Features Natural anodized. CR vent louvers incorporated with louver blade and stainless steel insect netting. ASLI vent louvers are designed for ease of installation on any exhaust duct. There are four pieces of inverted spring hooks attached at the colar. Spring

hook will secure the vent louver onto the duct or wall. Common application for fresh air intake, exhaust outlets and ventilation for

interior and exterior locations. Widely used in homes, condominiums, apartments, warehouses, gymnasiums, etc.

Standard Sizes 3100(4"), 125(5"), 150(6")

CR Construction Illustrations

CR Vent Louver

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

CR page 1 of 2

CR Physical Dimension Unit:mmFree Area (m2)

0.00370.00460.00740.0130

RC Performance Data6.256.865.72

1. Derive the minimum free area from air flow rate with recommended maximum free area velocity of 3.8m/s. Given 150 CMH, minimum free area = (150/3600)/3.8 = 0.011 m2

2. From the dimension table, find the corresponding minimum louver size. Size 200 has free area of 0.013m 2.3. Check the static pressure drop from the table above. Face velocity of 3.8m/s has about 2.5 mmAq static pressure drop for air intake application.

5.04.453.43

4.53.682.92

4.02.672.16

3.52.031.57

3.01.521.14

2.51.020.84

2.00.640.53

1.50.360.30

Face Velocity (m/s)Static Pressure (mmAq)Static Pressure (mmAq)

IntakeExhaust

DB

C + 55C + 5

C97122147197

Size100125150200

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CR Vent Louver

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

CR page 2 of 2

CR-1A-125 Physical Dimension Unit:mmType

CR-1A-100CR-1A-125CR-1A-150

A148173208

B93104122

C242830

D97122147

L404158

CR-1A-125-FD Physical DimensionUnit:mmType

CR-1A-100-FDCR-1A-125-FDCR-1A-150-FD

A148173208

B93104122

C242830

D98123148

L767897

CR-2A-125 Physical Dimension Unit:mmType

CR-2A-100CR-2A-125CR-2A-150

A148173208

B93104122

C242830

D97122147

L404158

CR-2A-125-FD Physical DimensionUnit:mmType

CR-2A-100-FDCR-2A-125-FDCR-2A-150-FD

A148173208

B93104122

C242830

D98123148

L767897

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Materials Perforated face: 0.8mm SPGC galvanized steel. Diffuser frame: Extruded aluminum A6063.

Surface Finish Baked white powder coat standard.

Features Diffuser face is perforated. The perforated face is removable by unlocking the spring hatch. Face size for model RKC is 603mm x 603mm suitable for T-bar mounting. For ductwork connection, a square adapter or square to round adapter

to the frame.

Accessories D2 Square to round adapter.

RK & RKC Construction Illustrations

RK & RKC Perforated Face Return Air Diffuser

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RK Physical Dimension Unit:mm

RK & RKC page 1 of 2

D Face Size

W + 20H + 20

RKC Physical Dimension Unit:mmD Face Size603 x 603

C Neck Size563 x 563

B Ceiling Size

W + 10H + 10

C Neck Size

W x H

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RK & RKC + D2 Square to Round Adapter With D2 square to round adapter fitted to the RK, RKC diffuser it will enable easy installation of flexible duct. The D2 adapters are constructed of 0.6mm galvanized steel with baked black as standard finish.

RK & RKC A layer of filter of thickness 6mm is on the perforated face of the diffuser. To clean the air filter, pull the perforated face downward & remove the air filter.

RK & RKC Perforated Face Return Air Diffuser

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

RK & RKC Performance Data

RK & RKC page 2 of 2

260 x 260(0.0676)360 x 360(0.1296)460 x 460(0.2116)560 x 560(0.3136)

Neck Size mmArea m2

20.25

1.5486-

933-

1524-

2258-

3.50.75

4.285224

163327

266629

395130

2.50.4

2.2608-

1166-

1904-

282224

30.55

3.1730-

140024

228525

338626

41.0

5.597328

186631

304732

451634

51.55

8.3121734

233337

380939

564541

4.51.25

7.2109532

210034

342837

508038

Vel. M/SVel. Press(mmAq)

Neg. SP.(mmAq)CMHNC

CMHNC

CMHNC

CMHNC

NC value is based on room absorption of 10dB, re 10 -12 watts. Dash (-) in space indicates NC value less than 20.

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Materials B-A Extruded aluminium A6063.

Features Baked white powder coat or natural anodized. They are constructed of extruded aluminium and intended to be used as

removable frame for the mounting of various types of diffusers. They are normally used in non T-bar ceiling suspension systems. Not applicable for wall mounted grilles. When mount at ceiling, the grille or diffuser will rest on the

B type T-bar ceiling frame.

B Type Construction Illustrations

B Type T-Bar Ceiling Frame

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

B Type Physical Dimension Unit:mmD

Face Size

W+30H+30

Order Key

B - A - 600 x 600

ModelMaterials W H

Materials

ExtrudedAluminium

A6063

W x H

To suitgrilles ordiffusers

Thickness

12

Model

B-A

BCeiling Size

W+10H+10

RETURN AIR GRILLES ACCESSORIES page 1 of 3

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The G1 OBD damper is designed for even distribution of air over the entire face of diffuser. It is gear operated & can be adjusted from below by means of key or

screw driver. The damper can be set at fully open, half open & fully close. G1 damper are constructed of galvanized steel with baked black as standard finish. Height for G1-T: 60mm. Height for G1-A: 45mm.

Return Air Grille + G1 Opposed Blade Damper

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

With D2 square to round adapter fitted to the return air grilles it will enable easy installation of flexible duct. The D2 adapter are constructed of 0.6mm galvanized steel with baked black as standard finish.

Return Air Grille + D2 Square to Round Adapter

The insect netting is constructed of wire mesh of gauge 12 installed at the grille. R6 insect netting prevent scraps, debris and small animals from being sucked into the air duct. Three types of nettings: 1/4", 3/8", 1/2".

Return Air Grille + R6 Insect Netting

RETURN AIR GRILLES ACCESSORIES page 2 of 3

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Materials G1-T: Frame 0.6mm SPGC galvanized steel. Blade 0.5mm SPGC galvanized steel. G1-A: Extruded aluminium A6063.

Surface Finish G1-T Matt black as standard. G1-A Natural anodized. Maximum dimension is 500mm x 500mm damper size bigger than this will come in sections. Gear operated, can be set at fully open, half open and fully close.

G1 Opposed Blade Damper

Materials D2-T: 0.6mm SPGC galvanized steel. D2-P: ABS plastic.

Surface Finish Baked black.

Standard Sizes D2-T: Made to suit. D2-P: 200, 250, 300, 350.

D2 Square to Round Adapter

Materials Frame 0.6mm SPGC galvanized steel. Gauge 12 wire mesh. Wire mesh grid: 1/4", 3/8", 1/2". With return air grille, R6 is fixed directly to the back of the grille. When R6 is installed at the air duct, a frame will be added.

R6 Insect Netting