ns9 – swirl diffusers with movable vanes · revision6.0.0 ns9 – swirl diffusers with movable...

7
revision6.0.0 NS9 – Swirl diffusers with movable blades 1 Intended Use: NS9 swirl diffusers are designed for low and medium pressure ventilation systems. 6.0.0 NS9 SWIRL DIFFUSERS WITH MOVABLE BLADES Intended Use Movable blades allow forming the supply air flow freely and obtaining swirl air supply. They are particularly recommended for 2.6 to 4 m high rooms, when the difference in temperature between the supply air and the air in the room is up to 10 K. They come with a round or square front panel. Design NS9 diffusers are equipped with blades made of plastic that generate swirling air flow. They are movable and positioned individually. Normally the blades are black. The front panel of the diffuser can be round or square. It is made of powder- coated steel, painted with RAL9010 white paint. Other RAL colour painting and a stainless steel version are available to special order. The diffusers can be made in supply version “Z” (with blades made of plastic) or as exhaust variant “A” (without blades made of plastic). Installation Depending of the version of the front panel, the diffusers can by installed in the following way: • square panel, blades in circular arrangement: KR1 instal- lation with a single bolt led through the opening in central section of the diffuser ( installation method for 310 – 625 sizes) • square panel, vanes in circular arrangement: KR4 instal- lation with four screws led through the openings in the dif- fuser corners (for the “800” size, installation requires eight screws) • round panel, RR1 installation with a single bolt led through the opening in the central section of the diffuser • square panel, blades in square arrangement: KK1 installa- tion with a single bolt led through the opening in the central section of the diffuser ( installation method for 310 – 625 sizes) • square panel, blades in square arrangement: KK4 installation with four screws led through the openings in the diffuser corners (for the “800” size, installation requires eight screws) For the diffusers with a square front panel, 600, 625, 800 size , we recommend KK4 and KR4 installation. Adjustment and blades settings versions NS9 diffuser blades can be adjust to the left, right or straight position. Intermediate positions are also possible. Swirled left* Left Right Left Right Left Right Straight Swirled right One-sided Double-sided Straight Figure 1. Adjustment and blades settings versions. * – “Swirled left” setting is a factory setting. Presented characteristics apply to this blades setting only. NS9 diffuser dimensions NS9-KR1 or NS9-KR4 310 400 500 600, 625 800 NS9-RR1

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Page 1: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0NS9 – Swirl diffusers with movable blades1

Intended Use: NS9 swirl diffusers are designed for low and medium pressure ventilation systems.

6.0.0

NS9SWIRL DIFFUSERS WITH MOVABLE BLADES

Intended UseMovable blades allow forming the supply air flow freely and obtaining swirl air supply. They are particularly recommended for 2.6 to 4 m high rooms, when the difference in temperature between the supply air and the air in the room is up to 10 K. They come with a round or square front panel.

DesignNS9 diffusers are equipped with blades made of plastic that generate swirling air flow. They are movable and positioned individually. Normally the blades are black. The front panel of the diffuser can be round or square. It is made of powder-coated steel, painted with RAL9010 white paint. Other RAL colour painting and a stainless steel version are available to special order. The diffusers can be made in supply version “Z” (with blades made of plastic) or as exhaust variant “A” (without blades made of plastic).

InstallationDepending of the version of the front panel, the diffusers can by installed in the following way:

• square panel, blades in circular arrangement: KR1 instal-lation with a single bolt led through the opening in central section of the diffuser ( installation method for 310 – 625 sizes)

• square panel, vanes in circular arrangement: KR4 instal-lation with four screws led through the openings in the dif-fuser corners (for the “800” size, installation requires eight screws)

• round panel, RR1 installation with a single bolt led through the opening in the central section of the diffuser

• square panel, blades in square arrangement: KK1 installa-tion with a single bolt led through the opening in the central section of the diffuser ( installation method for 310 – 625 sizes)

• square panel, blades in square arrangement: KK4 installation with four screws led through the openings in the diffuser corners (for the “800” size, installation requires eight screws)

For the diffusers with a square front panel, 600, 625, 800 size , we recommend KK4 and KR4 installation.

Adjustment and blades settings versionsNS9 diffuser blades can be adjust to the left, right or straight position. Intermediate positions are also possible.

Swirled left*

Left Right Left Right Left Right Straight

Swirled right One-sided Double-sided Straight

* – “Swirled left” setting is a factory setting. Presented characteristics apply to this vane setting only.

Figure 1. Adjustment and blades settings versions.

* – “Swirled left” setting is a factory setting. Presented characteristics apply to this blades setting only.

NS9 diffuser dimensionsNS9-KR1 or NS9-KR4

310 400500 600, 625

800

NS9-RR1

310 400500 600, 625

800

Page 2: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0 NS9 – Swirl diffusers with movable blades 2

AIR CONTROL AND DISTRIBUTION

SL SN RAL

NS9-KK1 or NS9-KK4

310 400500 600, 625

800

Figure 2. NS9 diffuser dimensions.

Diffusers with a square front panel and a square SR(t) plenum box.

C x C

A x A A x A

C x C ØD

ØD1

ØD+20ØD

ØDØD

Ød

H1

H1

20

Ød

H1

H2

20

ØD1

ØD+20

Figure 3. NS9 diffuser dimensions.

Diffusers with a round front panel and a round SRR(t) plenum box.

C x C

A x A A x A

C x C ØD

ØD1

ØD+20ØD

ØDØD

Ød

H1

H1

20

Ød

H1

H2

20

ØD1

ØD+20

Figure 4. NS9 diffuser dimensions.

Table 1. NS9 diffuser dimensions.

Size A

[mm

]

ØD

1

[mm

]

ØD

[mm

]

C[m

m]

H1

[mm

]

H2

[mm

]

Ød

[mm

] Aeff [m2] Aeff [m2]

KR1/KR4/RR1

KK1/KK4

310 308 310 270 303 290 200 158 0,0071 0,0090400 398 400 370 393 330 300 198 0,0173 0,0196500 498 500 470 493 380 300 248 0,0284 0,0417

600 598 600 570 593 380 300 248 0,0442 0,0567

625 623 625 570 593 380 300 248 0,0442 0,0567800 798 800 770 793 450 300 313 0,0772 0,1052

Effective areas for „Swirled left” settings.

NS9 selection

Marking:

Vt [m3/h] – t airflow rateA, B [m] – distance between diffusersH1 [m] – 1 m distance from the ceiling to the zone where

people stayVh1 [m/s] – airflow speed at H1 heightL [m] – range of air streamVL [m/s] – airflow speed at L distanceΔtZ [K] – difference in temperature between the supply air

and the air in Z roomΔtL [K] – difference in temperature between the air in the

room and the supply air at L distance, where: L = A/2+H1

or L = B/2+H1

or L = X+H1

Δp [Pa] – local pressure dropLw [dB(A)] – sound power levelVeff [m/s] – effective outflow velocityAeff [m2] – diffuser effective area

H1

1.8m

Q Q∆t2∆t2

∆TL

VH1

vL

∆TLH

L A,B L

X

Figure 5. Adjustment and blade settings versions.

Page 3: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0NS9 – Swirl diffusers with movable blades3

The airflow speed depending on the stream range and the temperature ratio. Charts for the “Swirled left” setting.

Determination of A length [m]

NS9/KK size 310B > 4 m

H1 = 0.8

1

0.05

0.10

0.150.200.25

1 1.41.6 2

1.5 2 3 4

VH1

[m/s

]

Vt (m3/h)500

400300200

100

Chart 1.

Vt (m3/h)

500

400

300200

100

Determination of A length [m]

NS9/KK size 310B < 4 m

H1 = 0.8

1

0.05

0.10

0.150.200.25

1 1.41.6 2

1.5 2 3 4

VH1

[m/s

]

Chart 2.

Stream range L [m]

NS9/KK size 310

A1 = 1

10.5

0.05

0.15

0.20

0.30

0.400.50

2

1.5 2 3 4

VH1

[m/s

]

0.02

0.03

0.04

0.050.060.07

ΔtL

/Δtz

tem

pera

ture

ratio

Vt (m3/h)

ΔtL

ΔtZ

500300

200

100

Chart 3.

Determination of A length [m]

NS9/KR, KK size 310B > 4 m

H1 = 0.8

1

0.05

0.10

0.150.200.25

1 1.4 2

1.5 2 3 4

VH1

[m/s

]

Vt (m3/h)

500

200

100

300

400

500

Chart 4.

Vt (m3/h)

500

400

300200

100

Determination of A length [m]

NS9/KR, RR size 310B < 4 m

H1 = 0.8

1

0.05

0.10

0.150.200.25

1 1.41.6 2

1.5 2 3 4

VH1

[m/s

]

Chart 5.

Vt (m3/h)

ΔtLΔtZ

500

300200

100

Stream range L [m]

NS9/KR, RR size 310

A1 = 1

10.5

0.05

0.15

0.20

0.30

0.400.50

2

1.5 2 3 4

VH1

[m/s

]

0.02

0.03

0.04

0.050.060.07

ΔtL

/Δtz

tem

pera

ture

ratio

Chart 6.

Determination of A length [m]

NS9/KK size 310B > 4 m

H1 = 0.8

10.15

0.20

0.25

0.300.35

1 1.4 2

1.5 2 3 4

VH1

[m/s

]

Vt (m3/h)

500400300200

Chart 7.

Determination of A length [m]

NS9/KK size 400B > 4 m

H1 = 0.8

10.15

0.20

0.25

0.300.35

1 1.4 2

1.5 2 3 4

VH1

[m/s

]

Vt (m3/h)

500400300

200

Chart 8.

Vt (m3/h)

ΔtL

ΔtZ

500

200

300

Stream range L [m]

NS9/KK size 400

A1 = 1

10.5

0.05

0.15

0.20

0.30

0.400.50

2

1.5 2 3 4

VH1

[m/s

]

0.02

0.03

0.04

0.050.060.07

ΔtL

/Δtz

tem

pera

ture

ratio

Chart 9.

Vt (m3/h)

500400300200

Determination of A length [m]

NS9/KR, RR size 400B > 4 m

H1 = 0.8

1

0.05

0.10

0.15

0.25

1 1.4 2

1.5 2 3 4

VH1

[m/s

]

Chart 10.

Vt (m3/h) 500400300200

Determination of A length [m]

NS9/KR, RR size 400B < 4 m

H1 = 0.8

1

0.05

0.10

0.15

0.25

1 1.4 2

1.5 2 3 4

VH1

[m/s

]

Chart 11.

Vt (m3/h)

ΔtL

ΔtZ

500

200

Stream range L [m]

NS9/KR, RR size 400

A1 = 1

10.5

0.05

0.15

0.20

0.30

0.400.50

2 2.5

1.5 2 3 4

VH1

[m/s

] 0.04

0.03

0.02

0.08

0.06

0.100.12

0.160.20

ΔtL

/Δtz

tem

pera

ture

ratio

Chart 12.

Page 4: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0 NS9 – Swirl diffusers with movable blades 4

The airflow speed depending on the stream range and the temperature ratio. Charts for the “Swirled left” setting.

Determination of A length [m]

1

NS9/KK size 500B > 4 m

H1 = 0.8 1 1.4 2

1.5 2 3 4

0.15

0.20

0.25

0.30

0.35

VH1

[m/s

]

Vt (m3/h)

1000800600

300

Chart 13.

Determination of A length [m]

1

NS9/KK size 500B < 4 m

H1 = 0.8 1 1.4 2

1.5 2 3 4

0.15

0.20

0.25

0.30

0.35

VH1

[m/s

]

Vt (m3/h)

1000800600

400

Chart 14.

Vt (m3/h)

∆tL∆tZ 400

6001000

Stream range L [m]

1 21.5 3 4 50.10

0.15

0.20

0.30

0.400.500.600.70

VH1

[m/s

] 0.03

0.02

0.040.050.06

0.080.100.120.14

∆tL/

∆tz

tem

pera

ture

rat

io

NS9/KK size 500

A1 = 1 2.52

Chart 15.

Vt (m3/h)1000800

600300

Determination of A length [m]

1

NS9/KR, RR size 500B > 4 m

H1 = 0.8 1 1.4 2

1.5 2 3 4

0.05

0.10

0.15

0.25

VH1

[m/s

]

Chart 16.

Determination of A length [m]

1

NS9/KR, RR size 500B < 4 m

1 1.4 2

1.5 2 3 4

0.05

0.10

0.15

0.25

VH1

[m/s

]

Vt (m3/h)

1000800600

300

H1 = 0.8

Chart 17.

Vt (m3/h)

∆tL∆tZ

400 6001000

0.10

0.15

0.20

0.30

0.400.500.60

0.80

VH1

[m/s

]

0.02

0.0.

0.04

0.06

0.080.100.12

0.160.20

∆tL/

∆tz

tem

pera

ture

rat

io

NS9/KK, RR size 600

A1 = 1 2.52

Stream range L [m]

1 21.5 3 4 5

Chart 18.

Vt (m3/h)1300

700

Determination of A length [m]

1

NS9/KK size 600B > 4 m

H1 = 1 1.4 2

2 3 4

0.10

0.20

0.15

0.300.40

0.500.60

VH1

[m/s

]

Chart 19.

Vt (m3/h)1300

700

Determination of A length [m]

1

NS9/KK size 600B < 4 m

H1 = 1 1.4 2

2 3 4

0.10

0.20

0.15

0.300.40

0.500.60

VH1

[m/s

]

Chart 20.

Vt (m3/h)

∆tL∆tZ

700 900

600

1300

0.10

0.15

0.20

0.30

0.400.500.600.70

VH1

[m/s

]

0.05

0.08

0.10

0.15

0.200.250.300.35

∆tL/

∆tz

tem

pera

ture

rat

io

NS9/KK size 600

A1 = 1 1.4 2

Stream range L [m]

1 21.5 3 4 5

Page 5: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0NS9 – Swirl diffusers with movable blades5

The airflow speed depending on the stream range and the temperature ratio. Charts for the “Swirled left” setting.

NS9/KR, RR size 600B > 4 m

H1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.35

0.30

0.25

0.20

0.15

1 1.5 2 3 4

1.4 2

1000

Vt (m³/h)1100900700

Chart 21.

1000

Vt (m³/h)900700500

B > 4 mH1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.35

0.30

0.25

0.20

0.15

1 1.5 2 3 4

1.4 2

NS9/KR, RR size 600

Chart 22.

1300

Vt (m³/h)

900700500

A1 = 1

VL [m

/s]

Stream range L [m]

ΔtL

/Δtz

tem

pera

ture

ratio

0.700.600.500.40

0.30

0.20

0.15

0.100.5

0.02

0.03

0.040.050.06

0.08

0.100.120.14

1.5 21 3 4

2NS9/KR, RR size 600

∆tL∆tz

Chart 23.

14002000

Vt (m³/h)

1100800500

B > 4 mH1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.40

0.30

0.20

0.15

1 2 3 4

1.6 2

NS9/KR, RR size 600

Chart 24.

1400

2000

Vt (m³/h)

1100800

500

B > 4 mH1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.40

0.30

0.20

0.15

1 2 3 4

1.6 2

NS9/KR, RR size 600

Chart 25.

A1 = 1

VL [m

/s]

Stream range L [m]

ΔtL

/Δtz

tem

pera

ture

ratio

0.80

0.600.500.40

0.30

0.20

0.15 20.02

0.03

0.04

0.050.06

0.08

0.100.120.14

3 4 5 6

2 2.5NS9/KR, RR size 600

20001100

Vt (m³/h)

500800

1700

∆tL∆tz

Chart 26.

14002000

Vt (m³/h)

1100800500

B > 4 mH1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.40

0.30

0.20

0.15

1 2 3 4

1.6 2

NS9/KR, RR size 600

Chart 27.

1400

2000

Vt (m³/h)

1100800

500

B > 4 mH1 = 0.8

VH1

[m/s

]

Determination of A distance [m]

1

0.40

0.30

0.20

0.15

1 2 3 4

1.6 2

NS9/KR, RR size 600

Chart 28.

A1 = 1

VL [m

/s]

Stream range L [m]

ΔtL

/Δtz

tem

pera

ture

ratio

0.80

0.600.50

0.40

0.30

0.20

0.15 0.02

0.03

0.04

0.050.06

0.08

0.100.120.14

3 42 5 6

2 2.5NS9/KR, RR size 600

2000

Vt (m³/h)

500

8001100

1600 1700

∆tL∆tz

Chart 29.

Page 6: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0 NS9 – Swirl diffusers with movable blades 6

A chart of the pressure loss and the sound power level (damper opening angle: 90° – open, 45° – half-open). Charts for the “Swirled left” setting.

50

45

40

35

30Lw

[dB(

A)]

100

150

200

300

400

450

NS9/K size 310

10

20

30405070

100

15045°

90°

Δp

[Pa]

Vt (m3/h)

Chart 30.

50

45

40

35

30Lw

[dB(A

)]

45°

90°

100

150

200

300

400

450

NS9/K size 310

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

Chart 31.

45

40

35

30

25Lw

[dB(

A)]

45°90°

100

150

200

300

400

450

NS9/K size 400

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

Chart 32.

4550

40

35

30

25 Lw [d

B(A)]

45°90°

100

150

200

300

400

450

NS9/K size 400

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

Chart 33.

45

40

35

30

Lw [d

B(A)]

300

400

500

600

700

800

1000

1200

NS9/K size 500

10

20

30405060

100

150

Δp

[Pa]

Vt (m3/h)

Chart 34.

45

40

35

30

Lw [d

B(A)]

300

400

500

600

700

800

1000

1200

NS9/K size 500

10

20

30405060

100

150

Δp

[Pa]

Vt (m3/h)

Chart 35.

45

40

35

30

Lw [d

B(A)]

400

500

600

800

1000

1500

NS9/K size 600

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

Chart 36.

45

40

35

30

Lw [d

B(A)]

300

400

500

600

800

1000

1500

NS9/K size 600

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

Chart 37.

100

650

800

1000

1500

2000

3000

NS9/K size 800

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

45

4035

30

Lw [d

B(A)

]

Chart 38.

100

650

800

1000

1500

2000

3000

NS9/K size 800

10

20

30405070

100

150

Δp

[Pa]

Vt (m3/h)

4540

3530

Lw [d

B(A)

]

Chart 39.

Page 7: NS9 – Swirl diffusers with movable vanes · revision6.0.0 NS9 – Swirl diffusers with movable blades 2 AIR CONTROL AND DISTRIBUTION SL SN RAL NS9-KK1 or NS9-KK4 310 400 500 600,

revision6.0.0NS9 – Swirl diffusers with movable blades7

NS9 – Swirl diffusers with movable bladesWhen ordering, please provide information in accordance with the following pattern:

NS9 - <C> - <X> - <W> - <P> <RAL> <KK> / <ADD>

Where:

C front panel and the installation method*

RR1 – round panel, installation with a single bolt

KK1 – square panel with blades in square arrangement, installation with a single bolt ( except for 800 size)

KK4 – square panel with blades in square arrangement, installation with four screws (f or 800 size installation with eight screws)

KR1 – square panel with blades in circular arrangement, installation with a single bolt ( except for 800 size)

KR4 – square panel with blades in circular arrangement, installation with four screws ( for 800 size installation with eight screws)

X diffuser intended use*

Z – supply diffuser ( with blades made of plastic)

A – exhaust diffuser ( without blades made of plastic)

P finish*

SL – painted steel

SN – stainless steel

RAL colour according to the RAL Colour Chart *

KK blades colour

none – black

B – white

ADD specify additional accessories here, as below:

Accessories**

Plenum box as per the configuration below:

<SR(R)> <I> - <H> - <K> <D> <R>

I insulation*

none - no insulation

t – insulated

H plenum box height in mm*

K connection pipe position*

b – side

g – top

D connection pipe diameter in mm*

R damper in the connection pipe*

none – no damper

P – damper adjusted from outside the box

Pc – damper adjusted from inside the box with a tie rod

Pd – damper adjusted from inside the box with a lever

* - optional values, if they are not provided, the default values will be used

** - more information about accessories accesories catalogue sheet

Example product marking: NS9-KK1Z-600-SL9010/SRt-430-b250P