Instruction Manual for Lindab models including: PCS, Perforated Diffuser, PCS Perforated Diffuser, Diffuser

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PCS
Perforated diffuser

lindab | we simplify construction
PCS
Dimensions

L

M8

Ø d1

H

30

Description
PCS is a circular diffuser with integrated box for visible installation. The diffuser has a perforated face plate and can be used for both supply and extract air.
The diffuser has a built-in damper and a measuring device for adjustment. PCS is equipped with a M8 threaded rod at the top for suspending the diffuser.
The diffuser is suitable for the horizontal supply of cooled air.
· Can be used for both supply and extract air. · Can be connected regardless of straight ducting
before the diffuser. · Supplied with integrated M8 rivet nut for suspension. · Detachable damper for cleaning of duct.

Ø D

SSiizzee [[mmmm]]
112255 116600 220000 225500 331155

ØØDD ØØdd11 LL

HH

[[mmmm]] [[mmmm]] [[mmmm]] [[mmmm]]

224400 112255 334400 221155

330000 116600 336600 226600

336600 220000 339900 330000

446600 225500 442200 335500

554400 331155 446600 442200

WWeeiigghhtt [[kkgg]]
33.,44 44.,66 66.,99 99.,66 1111.,44

Maintenance
The face plate can be detached and the damper removed to enable cleaning of the internal parts or the duct. The visible parts of the diffuser can be wiped with a damp cloth.

Order code
Product Type
PCS 2
Size
Ø125-315
Version
A
Example: PCS 2 - 160 - A

PCS 2

aaa A

Materials and finish

Material: Standard finish: Standard colour:

Galvanised steel Powder-coated White, RAL 9003 or 9010, gloss 30

The diffuser is available in other colours or unpainted. Please contact Lindab's sales department for further information.

Lindab reserves the right to make changes without prior notice

1

2020-12-16

lindab | we simplify construction
Perforated diffuser

PCS

Technical data
Capacity
Volume flow qv [l/s] and [m3/h], total pressure pt [Pa], throw l0.2 [m] and sound power level LWA [dB(A)] can be seen in the diagrams.
Frequency-related sound effect level
The sound effect level in the frequency band is defined as LWA + Kok Kok values are given in charts beneath the diagrams on the following pages.

Quick selection

Supply air
Size
125 160 200 250 315

Minimum

Pi=5 Pa l/s m3/h

20

73

34

122

53

190

79

286

121

437

pt=50 Pa LWA=30dB(A) l/s m3/h

30

106

48

173

65

235

109

393

-

-

pt=50 Pa LWA=35dB(A) l/s m3/h

36

131

59

212

81

292

135

484

188

675

Extract
Size
125 160 200 250 315

Minimum

Pi=5Pa l/s m3/h

20

73

34

122

53

190

79

286

121

437

Pt=50 Pa LWA= 30 dB(A)
l/s m3/h

29

104

32

117

63

225

109

391

-

-

Pt=50 Pa LWA= 35 dB(A)
l/s m3/h

43

156

62

222

104

376

146

525

191

687

Throw l0.2
The throw is specified at a terminal velocity of 0.2 m/s.

l0.2 [m] PCS-2 6 5
4
3

125 160 200 250
315

2

1 30

40 50 60 70 80 100

150

150

200

300

400 500

200 700

l0.2 [m]
qV [l/s] 300
qV [m3/h] 1000

Sound attenuation
Sound attenuation of the diffusers L from duct to room, including end reflection, see table below.

Size
125 160 200 250 315

Centre frequency Hz

63 125 250 500 1K 2K 4K 8K

21 16

6

19 14 12 11 17

15 11

9

21 15 12 13 16

12 8

6

15 15

9

11 14

19 15 12 17 12

9

11 14

16 13 11 14 12

9

12 13

Balancing

Balancing data is contained in a separate brochure.

2

Lindab reserves the right to make changes without prior notice

2020-12-16

Perforated diffuser

lindab | we simplify construction
PCS

Technical data
Supply air

pt [Pa] PCS-2-125a 250 200
150

100 70 50
30 20 15 10
15 60

30 25 20

20 70 80

30 100

50 45 40 35

40 150

50 60 200

LWA dB(A)

70 80 300

qV [l/s] 100
qV [m3/h]

Hz 63 125 250 500 1K 2K 4K 8K

Kok

6

3

1 -4 -5 -10 -15 -17

Extract air

pt [Pa] PCS-2-125a 250 200 150
100
70
50

50 45 40 35

30

30

20 15
10 10 40

25

20

15

20

30

50 60 70 80 100

LWA dB(A)

40 50 60 70 80 100

150 200

300 400

qV [l/s] 150
qV [m3/h] 500

Hz 63 125 250 500 1K 2K 4K 8K

Kok

6

3

2 -3 -6 -10 -13 -16

pt [Pa] PCS-2-160a 250 200 150
100
70
50

30
20 15
10 20 80

30 100

50

45

40

35

30

25 20

40 150

50 60 200

70 80 300

LWA dB(A)

100 400

qV [l/s]
150 qV [m3/h]
500

Hz 63 125 250 500 1K 2K 4K 8K

Kok

6

3 -1 -4 -5 -9 -16 -17

pt [Pa] PCS-2-160a 250 200 150
100
70
50

30

20 15

10

15

20

60 70 80

30 100

50

45

40

35

30

25

20
40 150

50 60 200

70 80 300

LWA dB(A)

100 400

qV [l/s] 150
qV [m3/h] 500

Hz 63 125 250 500 1K 2K 4K 8K

Kok

5

2

0 -6 -5 -8 -13 -18

pt [Pa] PCS-2-200a 250 200
150

100 70 50
30 20 15 10
30

40 150

50

45

40

35

30

25 20

50 60 200

70 80 300

100 400

LWA dB(A)

150 500

qV [l/s]
200 qV [m3/h]
700

pt [Pa] PCS-2-200a 250 200
150

100

70

50 35

30

30

20

25

15

20

10 30

40 150

50 60 70 80 100

200

300

400

50 45 40

150 500

LWA dB(A)

200 700

qV [l/s] 250
qV [m3/h]

Hz 63 125 250 500 1K 2K 4K 8K

Kok

3

0 -2 -3 -4 -9 -17 -19

Hz 63 125 250 500 1K 2K 4K 8K

Kok

7

4 -1 -3 -4 -9 -15 -19

Lindab reserves the right to make changes without prior notice

3

2020-12-16

lindab | we simplify construction
Perforated diffuser

PCS

Technical data
Supply air

Extract air

pt [Pa] PCS-2-250a 250 200
150

100 70 50
30 20 15 10
50 60 200

50

45

40

35

30

25 20

70 80 300

100 400

150 500

200 700

LWA dB(A)
qV [l/s] 300
qV [m3/h] 1000

Hz 63 125 250 500 1K 2K 4K 8K

Kok

4

1 -3 -3 -4 -9 -17 -18

pt [Pa] PCS-2-250a 250 200 150
100
70
50

30

20 15

10 50 60 200

70 80 300

25 20
100 400

35 30
150 500

50 45 40

200 700

LWA dB(A)
qV [l/s] 300
qV [m3/h] 1000

Hz 63 125 250 500 1K 2K 4K 8K

Kok

8

5 -2 -3 -5 -9 -14 -16

pt [Pa] PCS-2-315a 250 200 150
100
70
50

30
20 15
10 80 300

100 400

25 20
150 500

35 30
200 700

50 45 40

LWA dB(A)

300 1000

qV [l/s] 400
qV [m3/h]

Hz 63 125 250 500 1K 2K 4K 8K

Kok

5

2 -2 -1 -5 -11 -17 -16

pt [Pa] PCS-2-315a 200
150

100 70 50
30 20 15 10
80 300

35 30 25 20

100 400

150 500

200 700

50 45 40

LWA dB(A)

300 1000

qV [l/s] 400
qV [m3/h]

Hz 63 125 250 500 1K 2K 4K 8K

Kok

6

3 -4 -3 -4 -8 -16 -22

4

Lindab reserves the right to make changes without prior notice

2020-12-16


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