Rectangular Duct Fans - aeolosfans.com

Rectangular Duct FansRK • RKC

web-version

2

The fan company

DEVELOPMENT

C.A. Östberg in Avesta is one ofEurope´s largest manufacturer of fansfor the ventilation market. Productionstarted in 1981. New thinking is animportant ingredient in the company´sbusiness concept, which has resulted incontinuous development of products,quality, production and turnover.

As long ago as the 1970´s Hans Östberg

invented the world´s first circular inline

centrifugal duct fan with an external rotor

induction motor. Another revolutionary

invention, the rectangular duct fan, came

a few years later. Inexpensive, versatile

and easy to fit, the design revolutionised

the market in its field.

Continuous product development has

ensured that the products maintain the

highest quality on the market.

The company produces some 300 000 fans

annually and employs 140 people in a

plant covering 10000 m2.

The company is certified according to

ISO 9001 and ISO 14001.

IN THE MIND OF AN INVENTOR

33

RATIONALPRODUCTIONAND HIGHPROPORTIONFOR EXPORT

IN A CLASS OF THEIR OWN

The assembly line forrectangular duct fansat C.A. Östberg.

C.A. Östberg has probably Sweden´s highest proportion of production exported in the

ventilation industry. We export as much as 85 % of what we make to customers all over the

world. We believe our success, both at home and abroad, is due to the high quality and

reliability of our produts. Long series and rational production methods mean that we can

offer the market competitive prices.

Fans are supplied fully-wired with built-in capacitor and in asealed installation unit.

Ball-bearing-mounted external rotor induction motors of thehighest quality. Excellent cooling allows 0-100 % speed control.

Guide plate for higher pressure and flow.

Housings are made of strong galvanised steel.

Swing-out design.

RK Duct fan, for rectangular ducts

RKC Duct fan, for cylindrical ducts

4

Explanations to sound dataThe sound data have been compiled by means of sound measurement methods as follows:Pressure and flow: ISO 5801Determination of acoustic sound level in duct: ISO 5136Determination of acoustic sound level in reverberation room: ISO 3741

DesignationsLWA tot: Total A-weighted sound power level dB(A) (ref 10-12 W)=the sum of the sound power level in the octave ranges. LWA: A-weighted sound power level in octave range dB(A) (ref 10-12 W).LpA: A-weighted sound pressure level in dB(A) according to normed A-weightening correction and relating to an effective absorption area of 20 m2 with half spherical translation at a distance of 3 meters.

RK and RKC duct fans have straight throughflow with connections for either rec-tangular or cylindrical ducts. The fans have a rigid housing of galvanised steel. Theyare compact, high-capacity fans, operate quietly and can be built-in in any position.RK fans have forward or backward-curved impellers (see table). They are designedto cope with high pressures and long ducts with a minimum of noise. The motorsare maintenance-free, why the only service required is cleaning the impellers.Motors with impellers can be swung out for inspection and cleaning (swing-out).

All fans are supplied fully-wired and ready to fit in a sealed installation unit. Theyare moisture-proofed and approved for use in outdoor applications. The duct fansare not recommended for transporting grinding dust, soot, flour or similar.All fans are fitted with a built-in thermo-contact protector (see page 5).

• 11 sizes, in approx. 50 different executions.• Rectangular or circular connection.• Reliable, maintence-free ballbearing-mounted external rotor induction

motor of the very highest quality.• High pressure.• Minimum of noise.• Speed-controllable from 0-100 %.• Can be built-in in any position.• Any voltage and frequency quoted on request.• All models are fitted with an approved thermo-contact protector as

standard.• RK and RKC can be supplied with ready-fitted thermo-contact leads, e.g. for

alarm function.• All RK fans are supplied with an universal guide rail for easy fitting to rectangular

duct.

The sides can be supplied separately for connecting RK fans to RKC cylindrical ducts.

Instructions for maintenance of RK(C) The duct fan is fitted with an asynchronus motor of external rotortype with enclosed maintenance-freeballbearings. Single-phase motors are equipped with an approved thermo-contact protector with automa-tic reset. 3-phase motors are ready-wired with thermo-contact leads. These must be connected over amotorprotector, or if speed control is used, over a thermo-contact relay, fitted as standard in our 3-phasetransformers. The thermo-contact breaks the current if the temperature in the motor windings becomesexcessive. In single-phase motors the thermo-contact is reset automatically when the temperature in themotor windings falls to the permitted level. In 3-phase motors, the thermo-contact is reset as follows:Turn off the mains power. Wait until the motor has cooled. Reconnect the mains power.The fan is intended for continuous operation and can be speed-controlled by voltage variation using exter-nal equipment. It is not designed for transporting explosive gases, grinding dust, soot, flour or similar.

Electrical installation:The fan may only be installed by a qualified electrican. All RK(C) fans are supplied fully-wired and ready tofit in a sealed installation unit.1. Check that the voltage, frequency, cycles etc. of the mains supply correspond with the

specifcations on the fan´s ID plate.2. All electrical wiring and connections must be carried out in compliance with your national safety

regulations.3. The fan must be earthed.

Installation and fitting:

The fan can be installed in any position. For the maximum temperature of transported air, refer to thediagram of the fan. The fan must be fitted to a duct or fitted with a protective grille.

Care and maintenance:The only maintenance required is cleaning. We recommend inspection of the impeller every six months ifthe fan is operated continuously. Before cleaning: Disconnent from the mains and block the mains switch.Wait until the motor and impeller have stopped rotating. Care must be taken during dismantling and cleaning so as not to disturb the fan´s balance. Strong deter-gents or cleaning agents must not be used for cleaning the fan. Internal insulation may be wiped clean witha damp cloth. Sharp or rotating tools must not be used as these may damage outer surfaces.

In case of breakdown: 1. Check that mains power is reaching the fan.2. Disconnect from the mains and ensure that the impeller is not blocked.3. Check the thermo-contact according to the description above. If the thermo-contact has

activated, the cause of overheating should be determined to prevent the same fault recurring.4. Check that the capacitor is connected (single-phase, refer to the wiring diagram).5. If the fault persist, change the capacitor. 6. If these steps do not help, contact your supplier.7. Should the fan need to be returned to us, the impeller must be cleaned and motor wiring

undamaged, and a written description of the fault enclosed.

5

Yellow-green

Black

Blue

Brown

N

LFAN

WIRING DIAGRAM (WD) No 1

Yellow-green

W 1

V 2

V 1

U 2

U 1

W 2

T W

T W

L 3

L 2

L 1FAN


Black

Brown

Blue

White TW

White TW

Yellow-green

N

LFAN


We preserve the right to changes without further notice.Sound data explanations; see page 4

h

b

o9

o

d

c

g

d c e

f

a

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Type of fan Phase V* kW A Rpm Impellar** a b c d Ø e f g h Kg WDRectangular Circular

RK 300x150 C1 RKC 160 C1 1 230 0,083 0,36 2300 B 300 150 30 375 160 192 342 148 213 7 1RK 400x200 A1 RKC 200 A1 1 230 0,107 0,47 2300 B 400 200 40 500 200 244 444 214 264 13 1

RK 400x200 B1 RKC 200 B1 1 230 0,158 0,69 2400 B 400 200 40 500 200 244 444 214 264 13 1

RK 400x200 E1 RKC 200 E1 1 230 0,188 0,83 2400 B 400 200 40 500 200 244 444 214 264 14 1

Technical data

Sound data

** B=backward curved impellar; F=forward curved impellar

* All types as standard for 50 Hz. Other voltages and frequences can be quoted on request.

Type of fan63 125 250 500 1k 2k 4k 8kRectangular Circular

RK 300x150 C1 RKC 160 C1 0,063Inlet duct 61 68 43 52 60 66 57 54 48 36

250Outlet duct 63 70 47 53 62 66 65 59 56 40

Fan room 51 58 30 30 44 55 51 49 47 35

RK 400x200 A1 RKC 200 A1 0,12Inlet duct 66 73 50 56 66 71 65 60 57 45

250Outlet duct 68 75 54 59 67 73 68 64 60 47

Fan room 55 62 37 38 52 61 53 52 47 37

RK 400x200 B1 RKC 200 B1 0,16Inlet duct 66 73 53 59 65 70 66 62 58 49

340Outlet duct 69 76 57 60 67 73 69 67 62 52

Fan room 56 63 39 43 51 62 53 51 46 41

RK 400x200 E1 RKC 200 E1 0,18Inlet duct 68 75 56 62 68 71 67 62 59 50

340Outlet duct 72 79 59 64 71 76 71 70 64 53

Fan room 59 66 44 40 49 54 52 50 46 40

Flow m3/sTotal pressure

LpAdB (A)

LwAtot

LwA

7

5 4 3 2 1

1-phase V 230 165 135 110 80

RK 400x200 B1/RKC 200 B1

RK 300x150 C1/RKC 160 C1 RK 400x200 A1/RKC 200 A1

RK 400x200 E1/RKC 200 E1

Tot.

pres

sure

Pa

kW kW

kW kW

m3/h

m3/sTo

t. pr

essu

re P

a

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Pos. ontransfomer/curve

5

We preserve the right to changes without further notice.Explanations to sound data, see page 4

Sound dataType of fan

63 125 250 500 1k 2k 4k 8kRectangular Circular


213Outlet duct 63 70 57 60 62 64 65 60 59 50

Fan room 49 56 39 44 48 52 51 46 42 36


225Outlet duct 64 71 54 59 63 66 66 62 60 50

Fan room 49 56 34 45 48 50 51 47 43 37


300Outlet duct 71 78 55 67 69 75 68 70 64 54

Fan room 58 65 39 45 57 61 57 58 55 46

LpAdB (A)

LwAtot


LwA

h

b

o9

o

d

c

g

d c e

f

a

8

Type of fan Phase V* kW A Rpm Impellar** a b c d Ø e f g h Kg WDRectangular CircularRK 400x200 C1 RKC 200 C1 1 230 0,206 0,90 1200 F 400 200 40 502 200 244 444 214 264 11 1

RK 400x200 C3 RKC 200 C3 3 400 0,290 0,61 1300 F 400 200 40 502 200 244 444 214 264 13 4

RK 500x250 C1 RKC 250 C1 1 230 0,284 1,24 2400 B 500 250 40 600 250 294 544 148 314 16 1

Technical data

** B=backward curved impellar; F=forward curved impellar* All types as standard for 50 Hz. Other voltages and frequences can be quoted on request.

9

5 4 3 2 1

1-phase V 230 165 135 110 80

3-phase V 400 240 185 145 95

RK 500x250 C1/RKC 250 C1

RK 400x200 C1/RKC 200 C1 RK 400x200 C3/RKC 200 C3

5

40°C


Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kW

kW


h

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137Outlet duct 57 64 47 50 55 59 58 57 54 44

Fan room 44 51 34 42 43 45 44 41 39 33

RK 500x250 D1 RKC 250 D1 0,28Inlet duct 63 70 56 62 64 61 60 62 59 50

303Outlet duct 67 74 56 63 65 66 68 68 66 58

Fan room 53 60 39 50 54 52 52 51 49 42


303Outlet duct 68 75 57 62 66 67 69 69 66 58

Fan room 54 61 38 46 56 54 54 52 50 43

LpAdB (A)

LwAtot


LwA

Type of fan Phase V* kW A Rpm Impellar** a b c d Ø e f g h Kg WDRectangular CircularRK 500x250 B1 RKC 250 B1 1 230 0,180 0,86 850 F 500 250 40 532 250 294 544 148 314 16 5

RK 500x250 D1 RKC 250 D1 1 230 0,470 2,15 1300 F 500 250 40 532 250 294 544 148 314 17 5

RK 500x250 D3 RKC 250 D3 3 400 0,560 1,10 1310 F 500 250 40 532 250 294 544 148 314 17 4

Technical data


11

5 4 3 2 1

1-phase V 230 165 135 110 80

3-phase V 400 240 185 145 95

RK 500x250 D3/RKC 250 D3

RK 500x250 B1/RKC 250 B1 RK 500x250 D1/RKC 250 D1


Tot.

pres

sure

Pa

m3/h

m3/sTo

t. pr

essu

re P

a

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kW

kW

h

b

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d c e

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12


RK 500x300 A1 RKC 315 A1 1 230 0,250 1,22 900 F 500 300 40 562 315 344 544 192 364 19 5

RK 500x300 B1 RKC 315 B1 1 230 0,630 3,00 1250 F 500 300 40 562 315 344 544 192 364 21 5

RK 500x300 B3 RKC 315 B3 3 400 0,850 1,60 1280 F 500 300 40 562 315 344 544 192 364 21 4

Technical data




170Outlet duct 63 70 52 56 59 66 62 63 60 47

Fan room 47 54 33 40 47 47 49 45 41 36


380Outlet duct 71 78 60 64 68 71 74 70 70 60

Fan room 56 63 38 52 56 55 58 54 51 46


385Outlet duct 72 79 59 66 69 71 75 72 71 61

Fan room 57 64 45 47 58 56 59 56 53 47

LpAdB (A)

LwAtot


LwA

5 4 3 2 1

1-phase V 230 165 135 110 80

3-phase V 400 240 185 145 95

Pos. ontransformer/curve

13

RK 500x300 B3/RKC 315 B3

RK 500x300 A1/RKC 315 A1 RK 500x300 B1/RKC 315 B1To

t. pr

essu

re P

a

m3/h

m3/sTo

t. pr

essu

re P

a

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kW

kW




RK 600x300 D1 RKC 315 D1 1 230 0,42 2,00 850 F 600 300 40 642 315 344 644 214 364 30 5

RK 600x300 D3 RKC 315 D3 3 400 0,50 0,85 750 F 600 300 40 642 315 344 644 214 364 30 4

RK 600x300 F1 RKC 315 F1 1 230 1,20 5,60 1240 F 600 300 40 642 315 344 644 214 364 32 5

RK 600x300 F3 RKC 315 F3 3 400 1,44 2,80 1300 F 600 300 40 642 315 344 644 214 364 32 4

Technical data



220Outlet duct 63 70 56 58 63 64 62 61 61 48

Fan room 51 58 38 49 51 51 53 46 47 39


225Outlet duct 65 72 57 60 62 67 65 67 64 52

Fan room 52 59 38 45 52 53 54 48 48 40

RK 600x300 F1 RKC 315 F1 0,46Inlet duct 70 77 66 69 69 68 69 71 67 58

445Outlet duct 73 80 64 68 71 73 74 74 72 63

Fan room 58 65 49 53 59 56 62 57 52 45


500Outlet duct 75 82 66 69 73 74 75 76 74 65

Fan room 60 67 48 54 61 57 62 59 55 48


Sound dataLpA

dB (A)LwAtot

LwA

h

b

o9

o

d

c

g

d c e

f

a

14

15

5 4 3 2 1

1-phase V 230 165 135 110 80

3-phase V 400 240 185 145 95

RK 600x300 F1/RKC 315 F1

RK 600x300 D1/RKC 315 D1 RK 600x300 D3/RKC 315 D3

RK 600x300 F3/RKC 315 F3


Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kWkWkW





297Outlet duct 65 72 52 60 65 66 64 63 62 49

Fan room 52 59 43 54 55 51 50 46 44 36


297Outlet duct 65 72 54 61 63 66 65 65 61 49

Fan room 51 58 43 48 51 53 51 49 44 37


622Outlet duct 73 80 61 70 71 72 76 73 71 61

Fan room 58 65 50 58 57 57 60 56 52 46


623Outlet duct 75 82 62 70 71 73 78 75 72 62

Fan room 59 66 49 57 56 57 61 58 55 47


Sound data


RK 600x350 C3 RKC 355 C3 3 400 0,90 1,9 870 F 600 350 45 717 355 394 644 252 414 38 4

RK 600x350 E1 RKC 355 E1 1 230 1,78 8,0 1200 F 600 350 45 717 355 394 644 252 414 42 5

RK 600x350 E3 RKC 355 E3 3 400 2,13 4,3 1250 F 600 350 45 717 355 394 644 252 414 42 4

LpAdB (A)

LwAtot

LwA

Technical data

h

b

o9

o

d

c

g

d c e

f

a

16

17

5 4 3 2 1

1-phase V 230 165 135 110 80

3-phase V 400 240 185 145 95

RK 600x350 E1/RKC 355 E1

RK 600x350 C3/RKC 355 C3

RK 600x350 E3/RKC 355 E3


RK 600x350 C1/RKC 355 C1To

t. pr

essu

re P

am3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW 2 kWkWkW

h

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220Outlet duct 65 72 56 59 64 66 63 64 62 49

Fan room 51 58 36 42 51 53 51 49 47 37

RK 700x400 B3 RKC 400 B3 0,75 Inlet duct 66 73 61 64 65 64 65 67 63 53

390Outlet duct 71 78 63 66 70 72 72 71 69 58

Fan room 57 64 49 49 56 57 59 57 55 45


795Outlet duct 79 86 67 74 75 76 80 80 77 67

Fan room 66 73 54 57 65 67 66 64 62 54

LpAdB (A)

LwAtot


LwA

Type of fan Phase V* kW A Rpm Impellar** a b c d Ø e f g h Kg WDRectangular CircularRK 700x400 A3 RKC 400 A3 3 400 0,90 2,0 690 F 700 400 45 787 400 444 744 306 468 47 4

RK 700x400 B3 RKC 400 B3 3 400 1,50 2,7 870 F 700 400 45 787 400 444 744 306 468 54 4

RK 700x400 D3 RKC 400 D3 3 400 3,65 6,6 1300 F 700 400 45 787 400 444 744 306 468 60 4

Technical data



Sound data

19

5 4 3 2 1

3-phase V 400 240 185 145 95

RK 700x400 D3/RKC 400 D3

RK 700x400 A3/RKC 400 A3 RK 700x400 B3/RKC 400 B3


Tot.

pres

sure

Pa

m3/h

m3/sTo

t. pr

essu

re P

a

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kW

kW

h

b

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20


RK 800x500 E3 RKC 500 E3 3 400 2,80 5,25 870 F 800 500 50 882 500 544 844 306 568 78 4

RK 800x500 F3 RKC 500 F3 3 400 5,20 8,9 1390 F 800 500 50 882 500 544 844 306 568 81 4

Technical data




270Outlet duct 66 73 57 61 65 68 66 66 63 48

Fan room 54 61 46 48 54 56 55 52 46 37


475Outlet duct 75 82 66 68 72 76 75 75 72 61

Fan room 60 67 52 55 59 62 62 59 55 46


1050Outlet duct 83 90 70 78 80 82 85 85 81 70

Fan room 68 75 59 64 65 69 70 68 63 54

LpAdB (A)

LwAtot


LwA



21

RK 800x500 F3/RKC 500 F3

RK 800x500 C3/RKC 500 C3 RK 800x500 E3/RKC 500 E3

5 4 3 2 1

3-phase V 400 240 185 145 95

Pos. on transformer/curve

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kW kW

kW

h

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RK 1000x500 G3 RKC 500 G3 1,0Inlet duct 65 72 61 66 63 62 64 65 61 49

365Outlet duct 71 78 63 67 68 72 71 72 67 54

Fan room 58 65 49 53 56 62 56 53 49 41

RK 1000x500 H3 RKC 500 H3 1,13Inlet duct 70 77 66 68 67 67 70 72 66 58

635Outlet duct 76 83 69 71 72 76 77 78 73 63

Fan room 62 69 55 59 59 65 63 61 56 49

LpAdB (A)

LwAtot

Flöde m3/sTotaltryck

LwA

Type of fan Phase V* kW A Rpm Impellar** a b c d Ø e f g h Kg WDRectangular CircuklarRK 1000x500 G3 RKC 500 G3 3 400 1,70 5,25 680 F 1000 500 50 982 500 544 1044 294 568 90 4

RK 1000x500 H3 RKC 500 H3 3 400 4,00 7,0 870 F 1000 500 50 982 500 544 1044 294 568 90 4

Technical data



23

RK 1000x500 H3/RKC 500 H3

RK 1000x500 G3/RKC 500 G3

5 4 3 2 1

3-phase V 400 240 185 145 95

Pos. on transformer/curve

Tot.

pres

sure

Pa

m3/h

m3/s

Tot.

pres

sure

Pa

m3/h

m3/s

kWkW

Print

ed b

y Da

la Print

Med

ia, B

orlän

ge, S

wede

n. 02

06

AB C.A. ÖSTBERGINDUSTRIGATAN 2SE-774 35 AVESTASWEDEN

TEL +46 226-86 000FAX +46 226-86 005

e-mail: [email protected]

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