LINEAR SLOT DIFFUSERS - technalco · 2019. 7. 13. · 1) Model ‘TL’ : 16 mm slot width 2) Model...

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SLO

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RS TECNALCOLINEAR SLOT DIFFUSERS

CHAPTER-5LINEAR SLOT DIFFUSERS INDEXo Supply,Return,Linear Slot Diffusers

o Construction Details and Dimensions

o Plenum Box Detail

o Engineering and Performance Data

o Possible Combinations Of Air Dffusion

o Air Induction and Sound Levels

o Smok Diffusion Pattern Pictures

o Test Results From ETL

o Selection Tables

o Easy Selection Graphs

o Linear Slot Diffusers Fixing Details

o Ordering Data

SUPPLY, RETURN, DUMMY LINEAR SLOT DIFFUSERS

TECNALCO modulinear slot diffusers are specially designed to provide supply or return air in heating, cooling or ventilating systems. Constructed of extruded aluminium, these diffusers can be used in virtually any type of ceiling.Available in 3 different slot widths, from 1 through 8 slots, modulinear diffusers permit complete control of flow rate without disturbing the selected air pattern.

Types available:

Type Supply Return Dummy

Available in 2 defferent types:

1) TECNALCO2) TECNALCO3) TECNALCO

standard type ‘TS’type TS-(EF)‘ER’ type T’ER’

T‘S’ SLD RLD DLD

T‘ER’ SLD RLD DLD

TS-EF SLD RLD DLDFeatures:

NOTE:

Each piece incorporates brackets and strips foralignment and suspension purposes.

Standard sizes:

No. of Slots In Number of Pieces

1 pc. 2 pcs. 3 pcs.

1, 2 & 3 slots

4 slots

5 slots

6 slots

7 slots

8 slots

4 met.

4 met.

3.5 met.

3.5 met.

3 met.

2.5 met.

4 met.

4 met.

3.5 met.

3.5 met.

3 met.

2.5 met.

6 met.

6 met.

5 met.

5 met.

4.5 met.

4.5 met.

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<

<

<

<

<

<

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<

<

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All types of models are designed to give full flexibility in volume and air pattern control.

Single or multiple slot arrangement will provide full 180° adjustable air diffusing patterns.

Air diffusion pattern can be made horizontal along the ceiling, vertically downwards or intermediate.

Deflecting vanes and integral volume damper can be adjusted from the face of the diffuser. By adjusting the integral damper flow volume can be adjusted. The flow control does not affect the air pattern.

The integral volume control damper is designed in a unique way that it can be used as an equalizing grid.

Positive alingment of adjacent sections using alignment strips, provided with each diffuser.

The diffuser is constructed from high quality aluminium extrusions.

Material construction:

Slot diffuser is made of extruded aluminium in natural anodised finish.

Face section is available in powder coated finish also.

Air pattern controlling deflectors (Hit and miss damper) are in black matt finish.

Integral volume damper is in mill finish, available on request in black matt finish.

Plenum is made of galvanised sheet steel and internal insulation (acoustic liner) is of mineral fibre are

optional.

Balancing damper, made of galvanised sheet steel.

TECNALCOLINEAR SLOT DIFFUSERS

3 4

TECNALCOLINEAR SLOT DIFFUSERSERS


SLD 'TS'

RLD 'TS'

DLD 'TS'

TECNALCO Model T-S Type

1) Model ‘TL’ : 16 mm slot width2) Model ‘TM’ : 20 mm slot width3) Model ‘TH’ : 25 mm slot width

More than 8 slots available on request.

TECNALCO Standard Models - 'TS':

TECNALCO 'ER' Models:

Model 'TL' 'TM' 'TH'

T’S’Standard

T’ER’

1-8 Slots 1-8 Slots 1-8 Slots

1-8 Slots1-8 Slots1-8 Slots

T’S’-EF 1-8 Slots1-8 Slots1-8 Slots

Available from 1 through 8 slots with 3 different slot widrhs for low, medium and high capacity requirements.

TECNALCO model SLD ‘TS’ is a supply linear slot diffuser with integral volume control damper also called as (Hit and miss damper ) and set of deflection blades that on fully adjustable from the face of the diffuser.

TECNALCO model RLD ‘TS’ is a return or extract linear slot diffuser with air pattern controlling deflector blades.This are fully adjustable from the face of the diffuser.* single hit and miss damper provided on option.

TECNALCO model DLD ‘TS’ is a dummy or non active linear slot diffuser with diflector blades a blanking plateto replace hit and miss dampers.


SLD 'TS'-EF

RLD 'TS'-EF

DLD 'TS'-EF

TECNALCO Model TS-EF (Extra Flange) Type

1) Model ‘TL’ : 16 mm slot width2) Model ‘TM’ : 20 mm slot width3) Model ‘TH’ : 25 mm slot width

More than 8 slots available on request.

Available from 1 through 8 slots with 3 different slot widrhs for low, medium and high capacity requirements.

TECNALCO model SLD ‘TS‘-EF is a supply linear slot diffuser with extra flange on the face and integral volume control damper and hit and miss air straightening deflectors. Hit and miss air straighteners and integral damper are fully adjustable from the face of the diffuser.

TECNALCO model RLD ‘TS’-EF is a return or extract linear slot diffuser with air pattern controlling deflector blades.This are fully adjustable from the face of the diffuser.* single hit and miss damper provided on option.

TECNALCO model DLD ‘TS’-EF is a dummy or non active linear slot diffuser with diflector blades a blanking plateto replace hit and miss dampers.


5 6



TECNALCO Model T-ER Type

CONSTRUCTION DETAILS AND DIMENSIONS T-S TYPE

SLD 'TER'

RLD 'TER'

DLD 'TER'

Coding:

For T’S’ and T’ER’ type models:

1. Slot diffuser2. Slot width3. Integral damper4. Hit and miss damper5. Diffuser flange

N = Nominal size = Duct size = L x WN = L x No. of SlotsW = Width of the plenum, indicated in No. of SlotsL = Length of the Slot DiffuserA = Neck size = Width of the slot diffuser neckB = Overall width from the face side of the slot diffuser (flange to flange width)S = Slot width = 16 mm / 20 mm / 25 mm of models TL / TM / TH respectively

TECNALCO model SLD ‘TER’ is a supply linear slot diffuser with integral volume control damper and hit and miss air straightening deflectors. Hit and miss air straighteners and integral damper are fully adjustable from the face of the diffuser.

TECNALCO model RLD ‘TER’ is a return or extract linear slot diffuser with air pattern controlling deflectors (Hit and miss damper). Hit and miss damper is fully adjustable from the face of the diffuser.

TECNALCO model DLD ‘TER’ is a dummy or non active linear slot diffuser with hit and miss damper and a blanking plate to replace integral damper.

N = Nominal size = L x W

L = Length of linear slot diffuser

W = Width of linear slot diffuser

indicated in No. of Slots

Slot diffuser dimensions:TECNALCO Standard 'TS' type models:

1

2

3

4

5

6

7

8

37

70

104

138

172

206

240

274

80

114

148

182

216

250

284

318

41

78

116

154

192

230

268

306

84

122

160

198

236

274

312

350

45

88

131

174

217

260

304

347

89

132

175

218

261

304

347

390

No. of Slots Model 'TL' Model 'TM' Model 'TH'Slot

A A AB B B

16 mm Slot 20 mm Slot 25 mm

False ceiling opening size = (B - 30) mm.

Error correction = 1% due to manual work.


7 8


CONSTRUCTION DETAILS AND DIMENSIONS T-ER TYPE

N = Nominal size = L x WL = Langth of linear slot diffuserW = Width of linear slot diffuser indicated in No. of Slots

Slot diffuser dimensions:TECNALCO Standard 'ER' type models:



1

2

3

4

5

6

7

8

36

70

104

138

172

206

240

274

72

106

140

174

208

242

276

310

40

78

116

154

192

230

268

306

76

114

152

190

228

266

304

342

45

88

131

174

217

260

303

346

81

126

167

210

253

296

339

382


A A AB B B


CONSTRUCTION DETAILS AND DIMENSIONS T-S-EF TYPE

N = Nominal size = L x W

L = Length of linear slot diffuser

W = Width of linear slot diffuser

indicated in No. of Slots

Slot diffuser dimensions:TECNALCO Standard TS-EF type models:

1

2

3

4

5

6

7

8

37

70

104

138

172

206

240

274

80

114

148

182

216

250

284

318

41

78

116

154

192

230

268

306

84

122

160

198

236

274

312

350

45

88

131

174

217

260

304

347

89

132

175

218

261

304

347

390


A A AB B B




CONSTRUCTION DETAILS AND DIMENSIONS CONSTRUCTION DETAILS AND DIMENSIONS

For positive alignment of adjacent sections alignment strips provided with each diffuser.

Type T'S' & TS-EF

A with End Cap

Type T'ER'

90 corner piece

B with End Flange

300

300

300

300

C with open ends

D with one side End Cap/Flange (DA/DB)

E with both side End Caps/Flanges (EA/EB)

SLD-'T‘S'-T'M' -DA SLD-'T'S'-T 'M'-C SLD-'T'S'-T'M'-DA

o

135 corner pieceo

Construction Details and DimensionsPlenum box details:

Material:

TECNALCO acoustically lined plenum box is used for evenly distributing cool air over the surface of thelinear diffuser with minimum noise turbulance, thereby maintaining correct performance characteristics.If saves fabrication and installation labour.

Plenums are manufactured to suit the full range of linear diffusers from 1 to 8 slots.All joints are welded and sealed for air tight functioning which adds to maintain rigidity.Internal baffles are perforated sheet or splitters to suit the design, or a combination of both in special cases.Maximum one piece length is 1500 mm. Above this length plenum are supplied in multiple sections of everlength each provided with an intel spigot.

Plenum box is manufactured from galvanised sheet steel of 0.7 mm thickness and internally lined insulationis of 25 mm thickness mineral fibre.

Plenum dimensions with insulation:

NOTE:

No. ofSlots D H x y

Plenum dimensions without insulation:

1

2

3

4

5

6

7

8

150

200

200

250

250

315

315

315

300

300

300

300

300

365

365

365

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

x + 100

x + 100

x + 100

x + 100

x + 100

x + 100

x + 100

x + 100

No. ofSlots D H x y

1

2

3

4

5

6

7

8

150

200

200

250

250

315

315

315

275

275

275

275

275

340

340

340

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

*A + 10

x + 50

x + 50

x + 50

x + 50

x + 50

x + 50

x + 50

x + 50

* A = slot diffuser neck size Thickness of the insulation = 25 mm

NOTE:

* A = slot diffuser neck size


9 10


ENGINEERING AND PERFORMANCE DATA ENGINEERING AND PERFORMANCE DATA

With Type SLD T'S' :

With Type SLD T'ER' :

Possible combinations of discharging of air by adjusting the Hit and miss damper.

50% horizontal along theceiling 50% vertically downwards



100% vertically downwards

100% horizontal along theceilling


With Type SLD TS-EF :


100% horizontal along theceilling


In ceiling application, the air induction ratio for slotdiffusers without any blade setting is low, comparedto air induction with ceiling diffusers.Air induction increases very rapidly with the adjust-ment of the deflection blades.

For such reason, no deflection should be applied withfalse ceiling height of more than 4.00 meter.For low ceiling height the deflection becomes neces-sary and throw must be adapted accordingly.With slot diffusers, flow pattern can be adjusted toany local situation.Influence on air induction with and without blade set-ting is shown on opposite graphs and photos aremade under following conditions:- three-slot diffuser TECNALCO model SLD ‘TS’ ‘TM’ standard model with 20 mm slot width- no deflection setting- deflection blades adjusted to 45 angle setting.- no restriction on air flow- diffuser length 1000 mmThis model gives an air flow pattern which is adjustable from full left to full right by simply adjustingthe deflection blades (Hit and miss damper). This can be easily done before or after insallation.This high capacity unit has been designed to serve the performance oriented market of today.Air flow capacity can be controlled by the integral volume damper or intel spigot damper in the plenum box.

5002 slot3 slot4 slot5 slot

1,000

1,500

2,000

2,4002.52.01.51.0

3

0.5

per m. length

Induced air ratio to m3 /h supply air.

Air �

owm

/h.

Air Induction

Technical data

Induced Air Flow

Symbols

Outlet air velocityTerminal air velocitySupply air flow rateInduced air flow rateTotal air volume at end of throw

Induction ratioSupply air temperatureRoom temperatureAir temperature in the jet axis at a distance ‘x’Supply air temparature differentialTemparature defferential at a distance ‘x’ t ratio( t)

tx

tx

tr

t0

t0

VtV = V + V

m/sm/s

Formulae

L i

vt

v0

VV

i

y

y( )

t

t

y( )t

= 0.8 . t0

tx

txtx

trtr

t0

t00

t0

t0

.

x

tx

m3 /h or m3 /s

m3 /h or m3 /sm3 /h or m3 /s

oC

i = VL

VxV0

Vi

oCoC

KK

=

=

= = tr


11 12



The sound level of a linear slot diffuser is in direct ratio to the velocity of the air passing through it. due to the reduced sound level of SLD diffusers, air passing through a properly selected outlet will not add any appreciable noise to the sound level of the general air conditioning system. When hit and miss damper or integral damper is partially closed for balancing pyrposes, noise level can increase in function of the importance of the air distributing network. For distrivuting network extending more than 50 meter, basic balancing should be made by volume control dampers in the ducting. adjustment of deflection blades does not add any complementary sound level. Final should attenuation in the distributing system can be obtained inside sound insualation in the plenum boxes.

Sound level

Effect of damper adjustment on noise generation

Symbols

Formula

In order to obtain reasonable sound level, velocity in the outlet should be selected as follows:

Ceiling height

3 m - max 3 m/sec.4 m - max 4 m/sec.4.5 m. - max 5 m/sec.

NR2 = NR1 + NR

Total pressure drop through register, with Pawith damper fully open ( read from selectiondiagram)

Total pressure drop through register, Pawith damper partially open

Ratio of pressure drops

Noise level with damper fully open(c.f. selection diagram)

Noise level with damper partially open

Increase in noise level

P1

P2

NR1

NR

NR2

P1

P2

Discharging of air pattern can be observed from the smoke test results.

Smoke tests conducted by ETL Testing Laboratories Inc. An ADC certified lab.

Model: SLD-T‘S’-T‘M’ 1 slot x 1000 mmDischarging of air horizontal along the ceiling

Model: SLD-T‘S’-T‘M’ 1 slot x 1000 mmDischarging of air 45 downwards

Model: SLD-T‘S’-T‘M’ 3 slot x 1000 mmDischarging of air horizontal along the ceiling

Model: SLD-T‘S’-T‘M’ 6 slot x 1000 mmDischarging of air 45 downwards


13 14



Linear Slot Diffusers Correction factors for other lengths:

Area Factor Ak

Manufacturer: tecnalco

Product: linear slot diffuser - 6 slot

Flow meter equipment: 305 mm metering station

152 mm sharp edged orifice

Outlet/inlet type & size: 305 mm diameter

Neck area: 729 cm

Anemometer: alnor velometer type 6000p

Type & serial number: 6077al

L (m)

Throw (m)

N.C.

Test Results from ETL

1

x 1

+ 0

2

x 1.05

+ 1

3 - 5

x1.1

+ 4

6 - 10

x 1.15

+ 8

2

READINGSRunNo.

1

1

2

3

24.89

44.80

69.69

1.88

2.44

3.10

1.73

2.34

2.90

1.73

2.34

2.90

1.73

2.29

2.90

1.77

2.35

2.95

3.24

5.72

8.96

75

100

125

1.03

1.37

1.72

0.75

1.24

1.74

3.98

6.97

10.70

0.042

0.043

0.042

2 3 4 Ave.

Discharge velocity in m/sec. StaticPressure

Pa

Flow1/s

NeckVel.M/s

NeckV.P.P/a

TotalPress.P/a

Area factor( Ak )

FlowMeter p

pa

Calculations

Average 0.042

The tests were conducted, by the ETL Testing Laboratories on the selected sizes of the Linear slot Diffusers. The Linear Slot Diffusers had nominal 20 mm wide slots. Each slot was equipped with 2 deflector vanes (Hit and Miss Damper) which could be adjusted to provide air flow in any direction from horizontal to vertical. The intel to each slot contained a sloted slide damper (Integral volume damper). The dampers were set to the full open position for all tests. The test results include Total pressure, Area factor, Throw pattern and Soundpowder level.

Test method :

v

-12

The diffusers were tested in accordance with Air Diffusion Council Test Code for Grilles,Registers and Diffusers ADC 1062: GRD-84. The diffusers were installed in the ADC facilityand supplied with measured volumes of air. The static Pressure was measured 1-1/2 ductdiameters upstream of the diffuser intel.Air volumes are given in Lt/sec.The throw values given in the tables are related to the ceiling diffuser placed nearer to theceiling.Three throw values are given for each q to the corresponding terminal velocities Vt.Minimum Throw 0.75 m/sec. VtMiddle Throw 0.50 m/sec. VtMaximum Throw 0.25 m/sec. VtNoise data is given in terms of NC levels. These have been derived from sound power leveldata (dB re 10 watts) by subtracting 10 dB ( Room effect) from the sound power levels.

Outlet sizes are mentioned on the left side of each row in terms of number of slots x 1 mlength.

Air volume q :

Throw T :NC values :

NC values :

NC values :

Outlet size :

v

Throw Test Data

Distance from Outlet (m)

Velocity in m/s.

Distance from Outlet (m)

Velocity in m/s.

Run No. 2 Air Volume L/s 100

cm 0 0.5

2.5

7.5

15

22

30

45

60

90

120

1.85

1.07

-

-

1.89

1.04

1.04

0.79

-

-

0.91

0.84

0.89

0.91

0.53

0.46

-

0.86

0.74

0.74

0.74

0.48

0.51

-

0.71

0.58

0.56

0.56

0.41

0.46

0.25

-

0.66

0.53

0.48

0.51

0.36

0.48

-

0.53

0.46

0.43

0.43

0.30

0.38

-

0.33

0.30

0.28

0.28

-

-

-

-

-

-

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Product: Linear Slot Diffuser - 6 Slot

Run No. 1 Air Volume L/s 75

cm 0 0.5

2.5

7.5

15

22

30

45

60

90

120

2.21

1.68

-

-

-

1.52

1.42

1.37

1.07

0.25

-

1.32

1.22

1.27

1.24

0.74

0.51

-

1.14

1.02

1.04

0.99

0.61

0.56

0.28

-

0.94

0.76

0.74

0.74

0.53

0.69

0.33

-

0.81

0.66

0.58

0.56

0.43

0.53

0.38

-

0.71

0.61

0.58

0.58

0.43

0.46

0.30

-

0.61

0.53

0.53

0.53

0.38

0.46

0.30

0.28

-

0.46

0.41

0.36

0.38

0.28

0.33

0.28

-

0.36

0.33

0.30

0.30

0.25

0.25

0.28

-

0.28

0.25

-

-

-

-

-

-

-

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0


15 16



Sound Test Data

Octave BandCenter Frequency

Hertz

Linear Slot Diffuser - 6 Slot

Discharge Sound Power Level Lw

125

250

500

1000

2000

4000

8000

1

49.5

41.5

37.0

29.0

23.5

21.5*

27.5*

55.0

47.5

45.0

38.5

33.0

23.5*

27.5*

60.5

53.5

52.0

47.0

44.0

35.0

27.5*

64.0

58.0

56.5

52.5

50.5

43.5

29.0*

32 4

Total Air Volume L/sIntel Total Pressure, Pa

**Noise Criteria

200

26

30

250

41

37

300

58

42

150

15

21

dB re 10 Watt-12

* Sound power level data marked with an asterisk has reached ambient levels in the test room. Actual

levels are less than or equal to the levels indicated.

** Npise Criteria ratings were determined by subtracting 10 dB (room effect) from the Sound Power Levels.

Noise level for Linear Diffusers Model T'S' ‘'TM',TS-EF/T 'ER'‘'TM'

NC

45

40

35

30

25

20

1 slo

t

1 slot 2

slot

2 slot

3 slo

t

3 slo

t4

slot

5 slo

t6

slot

4 slo

t

5 slo

t6

slot

100

‘TS’ ‘TM’ T‘ER’ ‘TM’

150 200 300 400 500 700 1000 1500 2000 3000

Air flow m /h 3

Sele

ctio

n ta

bles

for L

inea

r Slo

t Diff

user

s

Type

s T'S

',TS-

EF a

nd T'

ER' o

f mod

el 'T

L' - s

lot w

idth

= 1

6 m

m

30

10.

0056

Pt (P

a)

Thro

w (m

)20

3.6-

5.4-

7.8

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

NC

NC

NC

NC

NC

NC

NC

NC

0.01

12

0.01

68

0.02

24

0.02

8

0.03

36

0.03

92

0.04

48

2 3 4 5 6 7 8

4050Li

ters

/ Se

cond

/ M

eter

7510

012

515

020

025

030

0

21

36

5.4-

6-9.

6

2633

46

5612

77.

2-9-

14.4

6-7.

2-11

.4

3.6-

4.8-

8.4

4.8-

6.6-

10.2

3.6-

6-8.

45.

4-8.

4-12

7.2-

9.6-

159-

11.4

-16.

810

.2-1

2.6-

19.2

6.6-

8.4-

13.2

7.8-

10.2

-15.

610

16 716 10

15 1119 12

1932

5172

2646

72

2740

704.

2-7.

2-12

6.6-

9-14

.4

4.8-

7.2-

13.8

6.6-

10.8

-16.

2

5.4-

9.6-

16.2

7.8-

11.4

-17.

4

6-10

.8-1

7.4

4.8-

10.8

-16.

89.

6-13

.2-1

9.2

12-1

5.6-

22.8

13.2

-16.

8-25

.2

10.2

-13.

8-20

.412

-15.

6-23

.413

.8-1

6.8-

25.8

10.8

-14.

4-20

.412

.6-1

6.2-

2414

.4-1

7.4-

26.4

8.4-

12-1

7.4

11.4

-14.

4-20

.413

.2-1

6.8-

25.2

7.8-

11.4

-16.

29.

6-12

-18

12-1

4.4-

20.4

2944

62

3562

2021

3342

2230

3743

20

2023

2332

3944

3138

44

20

2025 14 21 11

2030

44 4033

252937

43

2539

56

3441

46

20

No. of

Slot

s

Are

aFa

ctor

Ak


17 18



Sele

ctio

n ta

bles

for L

inea

r Slo

t Diff

user

s

Type

s T'S

', TS

-EF

and

T'ER'

of m

odel

'TL'

- slo

t wid

th =

20

mm

30

10.

007

Pt (P

a)

Thro

w (m

)16 3.

0-4.

5-6.

5

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

NC

NC

NC

NC

NC

NC

NC

NC

0.01

4

0.02

1

0.02

9

0.03

6

0.04

2

0.05

0

0.05

7

2 3 4 5 6 7 8

4050Li

ters

/ Se

cond

/ M

eter

7510

012

515

020

025

030

0

17

29 4.5-

5.8-

8.0

2229

42

4510

26.

0-7.

5-12

.05.

0-6.

0-9.

5

3.0-

4.0-

7.0

4.0-

5.5-

8.5

3.0-

5.0-

7.0

4.5-

7.0-

10.0

6.0-

8.0-

12.5

7.5-

9.5-

14.0

8.5-

10.5

-16.

0

5.5-

7.0-

11.0

6.5-

8.5-

13.0

813 6

13

814 9

15 1015

2641

58

2137

58

2232

563.

5-6.

0-10

.05.

5-7.

5-12

.0

4.0-

6.0-

12.0

5.5-

9.0-

13.5

4.5-

8.0-

13.5

6.5-

9.5-

14.5

5.0-

9.0-

14.5

4.0-

9.0-

14.0

8.0-

11.0

-16.

010

.0-1

3.0-

19.0

11.0

-14.

0-21

.0

8.5-

11.5

-17.

010

.0-1

3.0-

19.5

11.5

-14.

0-21

.5

9.0-

12.0

-17.

010

.5-1

3.5-

20.0

12.0

-14.

5-22

0

7.0-

10.0

-14.

59.

5-12

.0-7

.011

.0-1

4.0-

21.0

6.5-

9.5-

13.5

8.0-

10.0

-15.

010

.2-1

2.0-

17.0

2335

50

2850

1517

2938

1826

3339

15

1519

1928

3540

2739

40

15

1521 11 17 9

1624

35 3629

2125

3339

2031

45

3037

42

15

No. of

Slot

s

Are

aFa

ctor

Ak

Sele

ctio

n ta

bles

for L

inea

r Slo

t Diff

user

s

Type

s T'S

',TS-

EF a

nd T'

ER' o

f mod

el 'T

H' -

slot w

idth

= 2

5 m

m

30

10.

009

Pt (P

a)

Thro

w (m

)13 2.

4-3.

6-5.

2

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

Pt (P

a)

Thro

w (m

)

NC

NC

NC

NC

NC

NC

NC

NC

0.01

8

0.02

7

0.03

6

0.04

5

0.05

4

0.06

3

0.07

2

2 3 4 5 6 7 8

4050

Liter

s /

Seco

nd /

Met

er

7510

012

515

020

025

030

0

23 3.6-

4-6.

4

1926

39

3682

4-6-

9.6

4-4.

8-7.

6

2.4-

3.2-

5.6

3.2-

4.4-

6.8

2.4-

4-5.

63.

6-5.

6-8

4.8-

6.4-

106-

7.6-

11.2

6.8-

8.4-

12.8

4.4-

5.6-

8.8

5.2-

6.8-

10.4

610 5

10 611 7

12 812

2133

46

1730

47

1826

452.

8-4.

8-8

4.4-

6-9.

6

3.2-

4.8-

9.6

4.4-

7.2-

10.8

3.6-

6.4-

10.8

5.2-

7.6-

11.6

4-7.

2-11

.6

3.2-

7.2-

11.2

6.4-

8.8-

12.8

8-10

.4-1

5.2

8.8-

11.2

-16.

8

6.8-

9.2-

13.6

8-10

.4-1

5.6

9.2-

11.2

-17.

2

7.2-

9.6-

13.6

8.4-

14.3

-16

9.6-

11.6

-17.

6

5.6-

8-11

.67.

6-9.

6-13

.68.

8-11

.2-1

6.8

5.2-

7.6-

10.8

6.4-

8-12

8-9.

6-13

.6

1828

40

2240

1526

3515

15

1523

3036

15

1516

1625

3237

2431

37

15

1518 9 7

1319

28 3326

182230

36

1625

36

2734

39

1515

No. of

Slot

s

Are

aFa

ctor

Ak


19 20



Easy

sel

ectio

n gr

aphs

for L

inea

r Slo

t Diff

user

s

Type

s T'S

',TS-

EF a

nd T'

ER'

of M

odel

'TL'

- S

lot W

idth

= 1

6 m

m

2520

Thro

w (m

)1

2, 3

9070

5030 To

tal P

ress

ure

Pt(P

a)20

10

0

8

7

6

5

4

3

2

1

11

No.

of

Slot

s

10

350

987654350403020

2Vk

1520

3040

50

N.C.

N.C. Pt (Pa)

48, 7, 6, 5 1-8

= N

o. o

f Slo

tsPe

rfor

man

ce c

hara

cter

istic

s ar

eb

ased

on

1 m

t. le

ngth

.

Vt

=

0

.25

met

./se

c.

1510

50

300

250

200

150

125

100

Air v

olum

e

V =

Lt./

sec.75

Easy

sel

ectio

n gr

aphs

for L

inea

r Slo

t Diff

user

s

Type

s T'S

' TS-

EF a

nd T

'ER'

of M

odel

'TM

' -

Slot

Wid

th =

20

mm

25

4030

2015

2Vk

Pt (Pa)

N.C.

Tota

l Pre

ssur

e

Pt(P

a)

3

30 40 50

100

125

Air

volu

me

V =

Lt./

sec.

150

200

250

300

350

87

65

43

No.

of

Slot

s21

4 5 6 7 8 9 100

1020

3040

6080

8

Thro

w (m

)V

t =

0.

25 m

et./

sec.

6, 7

14,

5 1-8

= N

o. o

f Slo

tsPe

rfor

man

ce c

hara

cter

istic

s ar

eb

ased

on

1 m

t. le

ngth

.

2, 3

2015

105

0

N.C

.


21 22


ENGINEERING AND PERFORMANCE DATA LINEAR SLOT DIFFUSERS FIXING DETAILS

25

8, 7

, 6 5, 4

1 2, 3

90

87

65

43

21

5030

2010

08765432

2015

105

0

Easy

sel

ectio

n gr

aphs

for L

inea

r Slo

t Diff

user

s

Type

s T'S

',TS-

EF a

nd T'

ER'

of M

odel

'TH'

- S

lot W

idth

= 2

5 m

m

40

3020

15

Vk

Pt (Pa)

N.C.

Tota

l Pre

ssur

e

Pt(P

a)

Air

volu

me

V =

Lt./

sec.

350

300

200

150

125

100

75504030

Thro

w (m

)V t

=

0.

25 m

et./s

ec.

1-8

= N

o. o

f Slo

tsPe

rfor

man

ce c

hara

cter

istic

s ar

eb

ased

on

1 m

t. le

ngth

.

N.C

.

Type ‘C’ fixing:

NOTE:

Available finishes for the accessories:

Concealed bracket type fixing

1. Plenum2. Hanging Bridge bracket3. Slot diffuser4. Supporting clamps5. Adjustable screw6. False ceiling

Recommended for ceiling and sillapplications.

Standard supply is Type ‘C’ fixing.Available finishes:

Ordering Data:

Specify

Natural anodised aluminium

Powder coated colour finish.

(Mention RAL colour number)

Golden anodised aluminium

Bronze anodised aluminium

Mill finish aluminium

Counter sunk screw type fixing is also available on

request.

Mill finish aluminiumPowder coated in black matt finish

1. TECNALCO type and model

2. Nominal size - L x W

3. Quantity

4. Type of fixing

5. Sufface finish

6. Remarks

NOTE:

Example:

1. 2. 3. 4. 5. 6.

Supply with insulated plenum boxes of 1500 mm lengths.

SLD‘TS’ -TM-EA 3000 x 3 slot 25 nos. Type ‘C’ fixing Powder coated finish

RAL 9016

DBlack matt

Damper

Alignment or joining clips are provided for all

staddard type sections of TECNALCO model

Linear Slot Diffusers, when supplied with open

ends for continuous installation


23 24


Two Long pices linear slot diffuser joining diagram

LINEAR SLOT DIFFUSERS - technalco · 2019. 7. 13. · 1) Model ‘TL’ : 16 mm slot width 2) Model...

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Transcript of LINEAR SLOT DIFFUSERS - technalco · 2019. 7. 13. · 1) Model ‘TL’ : 16 mm slot width 2) Model...