HUMIDIN

CENTRIFUGAL BLOWER EAGFC SERIES]D I DW (Double Inlet Double Width) With Forward Curved Impeller

When Quality Speaks For Itself

As a leading manufacturer of Centrifugal Blower Forward Curved ACFC Series, today Humidin enjoys an enviableposition in customer mind-space.

Humidin boasts of a modern plant & a talented team of qualified professionals who sets an exacting standards ofquality for themselves.

In sum, Humidin stands for quality & customer satisfaction that are instrumental in bringing them on par with whatthe world calls the world class.

The ACFC series Centrifugal Blower (Forward Curved) consist of Double Inlet Double Width (DIDW) centrifugal fans.These fans have forward curved impellers with forward curved blades having special profile to give you maximumefficiency at low noise levels. These impellers are statically and dynamically balanced. The fans are suitable for variousapplications, where high volume air displacement is required like Air Cooling, General Ventilation, Pressurization etc., incommercial process and industrial HVAC systems

Available Sizes : The ACFC Series is available in wheel size 500mm to 1120mm diameter.

TYPE

HUMIDIN ACFC series fans are designed for various duty application and are available in various type of construction,however, here in this catalogue, we shall present only type-A

TYPE - A

The ACFC series is availbale in type A where strong side frame (M.S.) in welded construction are provided to supportthe Bearing and for wheel assembly

Fan size : 500 to 1120Volume : 1000 to 100000 m3/hTotal Pressure: 1 OOPa to 1600 Pa

ACFC Twin Fan

HUMIDIN also manufactures the twin fan mounted on single shaft.

For easiness in selection, please, make use of single fan curves, given in this catalogue with following factors:

Volume x2Absorbed Powerx 2.15Speed xl.05Noise x 3 db

Type A2

Size : 500 to 630Vol. :1500 to 65000 m3/h

Doub’e Inlet Forward Curved Centrifugal Blower

Note-Fan performance for twin fan are not licensed byAMCA International

H UMIDIN ACFC series impellers have forward curved blades manufactured in GI steelsheet. The blades are die formed. The Impellers are statically and dynamicallybalanced to ISO 1940 and AMCA 204-G2.5 standards

SIDE SUPPORTING FRAME (MS)

CASING

The casing for all sizes is manufacuted in GI steel sheet and are Pittsburg locked withoutany surface coating (optional)

The side supporting frames are fabricated out of MS section steel. The surface isfinished with enamel/epoxy coatings.

GRIN DED SHAFT

The shaft used for the fan are made of EN-8/SAE-1 040 carbon steel and machined to theprescribed tolerances with standard keyways. The Shaft are grinded for betterperformance and finish. The Shafts are coated with Varnish/Laquer after assembly.

BEARINGS

HUMIDIN forward curved blower have bearings of international standard. TheBearings are either deep groove ball bearings or spherical roller bearings withaccentric locking collars/adaptor sleeve sealed at both sides. The Bearings are prelubricated and are maintenance free.

Drain Plug in casing - optional.Outlet Flanges - optional.Inspection Doors - optional (one position).Guards at Inlet or outlet are optional

INLETCONE

The Standard Inlet Cones are made of FRP, however for bigger sizes the fabricated InletCones, made of sheet steel material are provided. The Inlet Cones are designedAerodynamically for better efficiency.

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IMPELLER

ø

The rotation and discharge of the fan is in accordance with AMCA standard 99-2406-03.The direction of rotation is determined from the drive end of the fan

CW - clockwise rotationCCW - counter-clockwise rotation

S

S

0

Motor Selection

The power curve shown on each performancecurve represents the absorbed power at theshaft of the fan measured in kw.

To determine the power of the motor to beinstalled, a correction factor should be appliedto compensate for transmission losses.

For conversion to horsepower (HP), usemultiplying factor 1 .34.

Motor Position

The position of the motor for belt drivecentrifugal fan is in accordance with AMCAstandard 99-2407-03.

Location of motor is determined by facing thedrive side of fan and designating the positionsby letters W, X, Y & Z.

Motor Position

.11Fx

Fan Rotation and Discharge

Fan rotation and discharge

Y

Motor power output (KW)

Recommended for compensation

The dynamic pressure and outlet air velocity shownon each curved are calculated on the full airdischarge area, i.e. ducted outlet conditions.

With free outlet conditions, the velocity pressure ishigher. To determine this new value, multiply thevelocity pressure of the ducted outlet obtained fromthe fan curve by the following correction factor 11K”.

Fan performances calculat with this correction factorsare not licensed by AMCA International.

The performance data shown on each diagram hasbeen tested and measured in accordance to AMCAStandard 210.

Ratings are referred to the standard air density with thetotal pressure as a function of the air volume, usinglogarithmic scales.

It is essential that, the same installation type and teststandard are used at all times, when comparing fan

NOISE

[K=26]

The nose level shown on each diagram refer to the sound power “A-weighted” and the data on the inlet side hasbeen measured in accordance with AMCA Standard 300 configuration “B”. The noise level of the fans aredetermined as follows:

Sound power level - (“A” scale) : Lw (A) as catalogue

Octave band spectrum: Lw = Lw(A) + Lw rel. Db [refer to Humidin for more details)

Sound pressure level:

(I)freefieldLp(A) = Lw(A) - (2Olog10d)-1 1

(II) Room ConditionsLp(A) Lw(A) - (2Olog,0d)-7

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DYNAMIC PRESSURE PERFORMANCE

Example of Selection

ACFC-500

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TOTAL EFFICIENCY. 0(N)2400

2050

DENSITY, Po 1.2kg/nI’

02 07 62 60.5 51 38

pt7F7’

L

EA

I)

a.:

1000

950

850700

700

650

\

± II\ /

Air volume

Outlet Velocity

Velocity Pressure

Total Pressure

Fan Speed

Absorbed Power

Total Efficiency

Sound Power Level

0

-

2

L

v k

cj; L

.,.

‘-

u:Z

Q = 16 000 m3/h

V= 11.2 mIs

Pv74Pa

C

Ps=750Pa480

0

N = 943 Pa305

H = 5.5 kW

200

r = 60.5 %

Lw(A) = 90.5 dB(A)

ISO

• P.,no.,n.noe o..tIT.d I. too hr*t.Babontyp. B- Fr.. 04.1 OuoMdouhoL

W(doa.notA05de2000

• Pwtgmen rEutg, do ndIr&4, B,..ff.d. nO ap ooten.no.. .opeooode.).

• The A-weighted sorelid m&ns shownhi,. been catcuitatad perA840AInt,nratlcnst Standard 001.

• 500cc. shown era ton host LOIS .ourdpower lena/i tot Installs/ont00. Bnra. Inlet, duo/ad coast.

___________I

A II v I I

_________

- 1300

— 0200

850

700

700

r 650

1 650

1 500

500

400

AIR VOLUME 0 (role)

MR VOLUME 0 (mA)

OUTLET VEL. V (ode)

2 3 5 10 20 30 55 000 200 305 500 1000 VEL. PRESSURE Pu (Pa)

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Ill/SI/i3000 5000 10000 25000 35000 50000

• I 1 I Ill ltItIlI(l2 3 4 5 TO 25 30 4E 50

10

Co0

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DC/)Cl)Ui

0

0I-

DENSITY, P 1,2kg/mC

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ACFC-500

TOTAL EFFICIENCY, Ti (%) 52 57 62 60 51 38

L / J I!

.-

/1UJ

/

/ //1

/

v

2400

2000

1000

900

800

700

600

500

400

300

200

100

1300

1200

1100

1000

900

800

750

700

650

600

550

500

450

—____

1rS

H------fl4:7\) ------

/\ !-X\\/ \ 8

\ /\ \i’0.3,

4 1 —

--

w( (inliB A>

2 3 4 5Performance certified is for installationtype B - Free inlet, Ducted outlet.Power rating (kW) does not inciudtransmission losses. 2000Performance ratings do not include theeffects of appurtenances (accessories>.

____________________

* The A-weighted sound ratings shownhave been calculated per AMCAInternational Standard 301.Values shown are for inlet LwiA soundpower ievels for Installation type B:free inlet, ducted outlet.

I I I I t II I I I j I I I

3000 5000 10000 20000 30000 50000

10 20 AIR VOLUME Q(mCIs>

I I I I I I 11 IiII r I

2 3 4 5 10 20 30 40 50 OUTLET VEL. V(m/s>

AIR VOLUME 0 (m’/h)

I lttlTI IIItIll11IIl jtIiF[IIti(

10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv (Pa>

Q(nIs)Perforrrrance certified is for installationtype B - Free inlet, Ducted outlet.

* Power rating (kW) does not include I I I I I I I I I I Itransmission losses. 3000 5000 10000 20000 30000 50000 100000 AIR VOLUME C (m*/h)Performance ratings do not include theeffects of appurtenances (accessories).

I I I I I III I 11ITheA-weighledsoundralingsshown 2 3 4 5 10 20 30 40 50 OUTLET VEL. V(m/s)have been calculated per AMCAInternational Standard 301.

• Values shown are for inlet LwiA soundIllilIllIll Jpower levels for Installation type 8:

free inlet, ducted ouriet. 1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv (Pa)

2400

2000

ACFC-560DENSITY, P = 1 .2kg/m*

TOTAL EFFICIENCY, 1(%) 52 57 62 60 51 38

m0

a,

Dcit0ci

0-J

I0I—

1000

900

800

700

600

500

400

300

200

100

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1000

900

800

700

600

500

400

DENSITY, P = 1.2kg/mr

1000

900

850

800

750

700

650

600

550

500

450

400

1001 2 3 4 5 10 20 30 AIR VOLUME Q (m’/s)

Performance certifIed is for installationtype B - Free inlet, Ducted outlet.Power rating (Icif?) does not include I I I I I I I I I

transmission losses. 3000 5000 10000 20000 30000 50000 100000 AIR VOLUME 0 (mr/h)Performance ratings do sot include theeffects of appurtenances (accessories).

II I I Ill I II(TheA-weightedsoundraungsshown 2 3 4 5 10 20 30 40 50 OUTLET VOL. VIm/n)have been calculated per AMCAInternational Standard 301.

* Values shown are for inlet LwiA sound I I I I I I I I I Ipower levels for Installation type B:free inlet ductnd outlet. 1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv(Pa)

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ACFC-630

TOTAL EFFICIENCY, °1(%)2400

2000

52 57 62 60 51 38

Ba

zLDUiIiia5)

CsaaUiI1D5)CI)LUUia

300

200

350

1000

900

800

700

600

500

400

DENSITY, P = I 2kg/m

Sa

zwLfJ00

900

850

800

750

700

650

600

550

500

450

400

260

1002 3 4 5 10 20 30 40 AIR VOLUME Q(m’Is)

• Performance certified is for installationtype B - Free inlet. Ducted outlet.Power rating (kN) does not include I I I I I I I I I I I I I I I

transmission losses. 5000 10000 20000 30000 50000 100000 AIR VOLUME 0 (ms/h)• Performance ratings do not include the

effects of appurtenances (accessories).I II I I I II I II I I

* The A-weighted sound ratings shown 2 3 4 5 10 20 30 40 OUTLET VEL. V (mis)have been calculated per AMCAInternational Standard 301.Values shown are for inlet LwiA sound I I I I I I I I I I I I I I I I I I I I I I I I I Ipower levels for Installation type B:free inlet, ducted outlet. 1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv (Pa)

ACFC-710

TOTAL EFFICIENCY, 11(%)

2400

2000

52 58 66 71 58 41

a

aw

Dat(I)uJ

a-J

I0I-

300

200 350

300

DENSITY, P= 1.2kg/rn

66 71 58 41

1002 3 4 5 10 20 30 40 50 AIR VOLUME 0 (mIs)

Performance certified is for installationtype B - Free inlet, Dueled oulletPower rating (kIA!) does not include I I I I I I I I I I I I

transmission losses. 5000 10000 20000 30000 50000 100000 AIR VOLUME Q (n’Ih)* Performance ratings do not include the

effects of appurtenances (accessories).I II Ill III I I

TheA.weightedsoundratingsshown 2 3 4 5 10 20 30 40 OUTLET VEL. V(m/s)have been calculated per AMCAInternational Standard 301.

• Values shown are for inlet LwiA Sound 1111 I 1111111111 IllIllilIll 11111111power levels for Installation type B:free inlet, dueled outteL 1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv (Pa)

ACFC-800

TOTAL EFFICIENCY, 1(%) 52 582400

2000

Ina

acc

DCoCl)cc

a

1000

900

800

700

600

500

400

300

200

B

zDILU0.1aC/)

750

700

650

600

550

500

450

400

350

300

270

240

0

0wDLI,C,,wa

8ezwILlaLI,

200

AIR VOLUME 0 (rr?Is)

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ACFC-900

TOTAL EFFICIENCY, Ti (%)2400

2000

52 58 66 71 58 41

DENSITY, P 1.2kg/ni1

650

600

550

500

450

400

350

300

260

1000

900

800

700

600

500

400

300

200

100

* Performance certified Is for installationtype B - Free inlet, Ducled outlet.

* Power rating (kW) does not include I I I I I I I I I I I Itransmission losses. 6000 10000 20000 30000 50000 100000 200000 AIR VOLUME 0 (m1/h)

* Performance ratings do not include theeffects of appurtenances (accessories).

I I II I I I II• The A-weighted sound ratings shown 2 3 4 5 10 20 30 40 OUTLET VEL. V (rn/n)have been calculated per AMCA

International Standard 301.Values shown are for Inlet LwiPI sound

J I I I I I I I I I I I I I Ipower levels for Installation type B:freeinlet,ductedoutlel. 1 2 3 5 10 20 30 50 100 200 300 500 1000 VOL. PRESSURE Pv(Pa)

230

2 3 4 5 10 20 30 40 50

0

0wD5,(1)5,

0

DENSITY, P = 1.2kg/ms

E

zLiiLii0U)

ACFC-1 000

TOTAL EFFICIENCY, 11 (%)IT.I

52 58 66 71 58 41

F!

/ /I:z

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$,i22SE11 7 N ) b.

\

2400

2000

1000

900

800

700

600

500

400

300

200

100

* Performance certified is for installationtype 8-Free inlet, Ducted outlet.

* Power rating (kW) does not includetransmission losses.

* Performance ratings do not include theeffects of appurtenances (accessories).

* The A-weighted sound ratings shownhave been calculated per AMCAInternational Standard 301.

* Values shown are for mint LwiA soundpower levels for Installation type B:free inlet, ducted outlet.

/1 0(

A ,i\ 7

600

550

500

450

400

350

300

260

230

200

——

-12 I - - - - - - -

0.8/<!

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H

2 3 4 5

10000 20000 30000

10 20 30 40 50

50000 100000

I I I I I I I I I I I I II I I II I I I

2 3 4 5 10 20 30 40

AIR VOLUME C (n?is)

200000 AIR VOLUME Q (mIh)

I I1III Ill

1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL.PRESSURE Pv(Pa)

OUTLET VEL. V (mis)

1003 4 5 30 40 100 AIR VOLUME C (mrls)

* Performance certified is for installationtype B - Free islet, Ducted outlet.

I I II I I I I II I III I IPower rating (kW) does not includetransmission losses. 10000 20000 30000 50000 100000 200000 300000 AIR VOLUME 0 (rn’ih)* Performance ratings do not include theeffects of appurtenances (accessories).

I I I I I I III I II I* The A-weighted sound ratings shown 2 3 4 5 10 20 30 40 OUTLET VEL. V (mis)have been calculated per AMCA

International Standard 301.* Values shown are for inlet LwiA sound I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Ipower levels for installation type B;

free inlet, ducledoatlet. 1 2 3 5 10 20 30 50 100 200 300 500 1000 VEL. PRESSURE Pv(Pa)

ACFC-1 120

TOTAL EFFICIENCY, i(%) 52 582400

2000

DENSITY, P = 1.2kgirr?

66 71 58 41

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Size L W H L W H

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710 112 1484 1315 1380 1730 1315 1197132 1584 1315 1380 1830 1315 1197160 1659 1315 1380 1905 1315 1197180 1709 1315 1380 1955 1315 1197200 1759 1315 1380 2005 1315 1197225 1859 1315 1380 2105 1315 1197

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OVERALL DIMENSION - Type A” Series

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