amca publication 211 proportionality dimensions · · 2016-06-20amca publication 211...

Rev. 9/07

AMCA Publication 211 Proportionality Dimensions

W

ABD

A Diameter at Blade TipB Diameter at Blade HeelW Blade Width at DischargeD Minimum Diameter at Inlet ConeN Number of Blades

Figure A-1 Backward inclined centrifugal impeller

Model No./Size Dimensions

A

B W D N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


D B A

W

A Diameter at Blade Tip

B Diameter at Blade Heel

W Blade Width at Discharge

D Minimum Diameter at Inlet

N Number of Blades

Figure A-2 Forward curved centrifugal impeller


A

B W D N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


D B A

W

Figure A-3 Radial centrifugal impeller

A Diameter at Blade TipB Diameter at Blade HeelW Blade Width at DischargeD Inlet DiameterN Number of Blades


A

B W D N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


A

W

D B

Figure A-4 Mixed flow impeller

A Major Diameter at Discharge1 A Minor Diameter at Discharge

B Major Diameter at Blade HeelW Blade Width at DischargeD Minimum Diameter at Inlet ConeN Number of Blades

1 A


A

A1 B W D N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


A HG

Figure A-5 Vaneaxial propeller

A Diameter at Blade TipH Hub DiameterG Blade Width at Discharge

Pitch Angle at Tip or at a Designated RadiusN Number of Blades"

"


A

H G α N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


A HG

A Diameter at Blade TipH Hub DiameterG Blade Width at Tip" Pitch Angle at Tip or at a Designated RadiusN Number of Blades

Figure A-6 Tubeaxial propeller

"


A

H G α N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


A HG

A DiameterH Blade Root Diameter, May be 20% less than CataloguedG Blade Width at a Designated Radius" Pitch Angle at a Designated RadiusN Number of Blades

Figure A-7 Fabricated propeller

"


A

H G α N

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Tip Clearance

InsideSurfaceof Casing

Design tip clearance is defined as thedifference between the design radius ofthe impeller and the design internalradius of the fan casing. Measured tipclearance is defined as the average ofthe tip clearance measurement for allblades taken at eight locations(45 intervals) around the fan casing.o

Figure A-8 Tip clearance


Tip Clearance

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


C

A or A

B or B

A Width of Discharge (or Evase, as applicable)B Height of Discharge (or Evase, as applicable)C Point of Inlet Radius or Inlet Collar Diameter

Figure A-9 Centrifugal fan housing SI-DI

Model No./Size Dimensions A

B C

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


A L

B

S

S Shaft Diameter if Shaft Extends Through BoxA Inlet HeightB Inlet WidthL Inlet Box Length

Figure A-10 Inlet box


S

A B L

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Q

CQ Shaft Height above BaseC Inlet Diameter at Tangent Point of Inlet Radius or Inlet Collar Diameter

Figure A-11 ARR. 3 plenum fan


Q

C

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Q

CQ Shaft Height above Base

C Inlet Diameter at Tangent Point of Inlet Radius or Inlet Collar Diameter

Figure A-12 ARR. 1 plenum fan


Q

C

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


P C

P Panel SizeC Inlet Diameter at Tangent Point of Inlet Radius or Inlet Collar Diameter

Figure A-13 Plug fan


P

C

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


U

TE

B1B2

NV

JU Drum Diameter or Square SizeB1 Interior Drum SizeB2 Interior Drum Size at DischargeT Length to Belt TubeJ Belt Tube SizeE Length of VanesNV Number of Vanes

Figure A-14 In-line centrifugal fan

Model

No./Size

Dimensions

U

B1 B2 T J E NV

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


U

TE

J

B

NV

U Diameter - IDB Interior Drum DiameterT Length to Belt TubeE Length of VanesNV Number of Vanes

Figure A-15 Vaneaxial fan belt drive

J Belt Tube Size


U

B T E NV J

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


U

E

B

NV

U Diameter - IDB Inside Diameter of VanesE Length of VanesNV Number of Vanes

Figure A-16 Vaneaxial fan direct drive


U

B E NV

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


U

T J

B

U Diameter - IDB Size of Drive TubeT Length to Belt TubeJ Belt Tube Size

Figure A-17 Tubeaxial fan belt drive


U

B T J

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


UU Diameter

Figure A-18 Tubeaxial fan direct drive


U

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


P

K

O

R

O Orifice DiameterK Orifice DepthR Orifice RadiusP Panel or Ring Size

Figure A-19 Propeller fan


O

K R P

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


V

N

FCI

M

N Hood HeightV Hood Diameter or SizeF Discharge Area or SizeC Inlet Collar Size (if provided)I Recommended Inside Curb Dim.M Minimum Height Above Roof

Figure A-20 Centrifugal PRV exhaust-down discharge Model No./Size Dimensions

N

V F C I M

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


C

V

F

I

V Housing Diameter or SizeF Discharge Area or SizeC Inlet Collar Size (If Provided)I Recommended Inside Curb Dim.

Figure A-21 Centrifugal PRV exhaust-up discharge


V

F C I

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


V

K

OCI

M

O Orifice DiameterV Hood Diameter or SizeF Discharge Size or AreaC Inlet Collar Size (If Provided)K Orifice Depth

R Orifice Radius

Figure A-22 Axial PRV supply or exhaust

M Minimum Height Above RoofI Recommended Inside Curb Dim.

R

F

Model

No./Size Dimensions

O

V F C K M I R

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Y

V

FM

N

V Hood SizeF Intake Size or AreaN Hood HeightY Body SizeM Height Above Base

See A9 for Blower Dimensions Required

Figure A-23 Centrifugal supply PRV


V

F N Y M

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


X

K

O

CI

R

X Windband DiameterC Inlet Collar Size (If Provided)O Orifice DiameterK Orifice DepthR Orifice RadiusI Recommended Inside Curb Dim.

Figure A.24 Axial upblast PRV


X

C O K R I

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


X

C

I

C Inlet Collar Size (If Provided)X Windband Diameter, InsideI Recommended Inside Curb Dim.

See Tubeaxial and Vaneaxial for Dim. Figures A-15 to A-18

Figure A-25 Axial upblast PRV


C

X I

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


V

N

C

I

M

F

Figure A-26 Axial supply/exhaust PRV

C Inlet Collar Size (If Provided)V Hood SizeF Discharge/Intake Size or AreaN Hood HeightM Height Above RoofI Recommended Inside Curb Dim.

See tubeaxial Figure A-17 and A-18for Required Fan Dim.


C

V F N M I

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


V

O

Y

N

M

F

R

V Hood SizeF Discharge/Intake Size of AreaN Hood HeightM Height Above RoofY Body SizeO Orifice DiameterK Orifice DepthR Orifice Radius

Figure A-27 Combination PRV exhaust-supply-circulate

Model No./Size

Dimensions

V

F N M Y O K R

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


X

K

O

Y

R

Y Body SizeK Orifice DepthO Orifice DepthR Orifice RadiusX Wind Band Diameter, Inside

Figure A-28 Combination PRV exhaust-circulate


Y

K O R X

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


See Figure A-19 for Dimensional Requirements for Propeller FansProvide All Dimensions Required to Define Inlet and/or Outlet Appurtenances

Figure A-29 Agricultural fans


1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


LB

Y

A

Z 2 Z 1

A Interior HeightB Interior Depth

L Interior Width

Y Shaft Center HeightZ Fan Spacing

See Tubeaxial and Vaneaxial Figures A-15 to A-18for Required Fan Dimensions

Figure A-30 Vane/tubeaxial air curtain


L

Z A B Y

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


X

Y

A

W

V

Z 3 Z 2 Z 1

Figure A-31 Centrifugal/tangential air curtain

L B

A Interior HeightB Interior DepthL Interior Width

W Centrifugal Fan/Housing WidthX Shaft Center DepthY Shaft Center HeigfhtZ Centrifugal Fan/Housing SpacingV Motor Spacing (where applicable)

Model No./Size

Dimensions

A

B L V W X Y Z

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


L B

Z 2 Z 1

W

O

Y

A

K

R

A Interior HeightB Interior Depth

L Interior Width K Orifice DepthR Orifice Radius

Y Shaft Center height

Z Axial Fan SpacingO Min. Diameter of Inlet ConeW Impeller Diameter at blade Tip

Figure A-32 Axial air curtain

Model No./Size

Dimensions

L

Z W A B K R O Y

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Figure A-33 Circulator fan

K

O

W

O Minimum Diameter of Inlet Orifice

W Tip Clearance

K Inlet Orifice Depth


K

O W

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


T 1

S 1T 2

N 2

N 1

Figure A-34 Circulator fan head with guard

N1 Number of RingsN2 Number of Radial SupportsT1 Ring ThicknessT2 Radial Support ThicknessS1 Ring Spacing


N1

N2 T1 T2 S1

1

2

3

4

5

6

7

8

9

10

11

12

Rev. 9/07


Di

Li L Lo

Dfi

Ri

D

NRo

Dfo Do

L Fan Length

Li Inlet Silencer Lenght

Lo Outlet Silencer Length

D Fan Diameter

Di Inlet Silencer DiameterDo Outlet Silencer DiameterDfi Inlet Fairing Diameter

Dfo Outlet Fairing DiameterRi Inlet Bell RadiusRo Outlet Bell RadiusN Number of Vanes

Figure A-35 Jet tunnel fan dimensions

Model No./Size

Dimensions

L Li Lo D Di Do Dfi

Dfo Ri Ro N

1

2

3

4

5

6

7

8

Rev. 9/07

Figure A-36 Induced Flow Fan Nozzle and Windband Dimensions

Model No./Size

A B C D E F G

1

2

3

4

5

6

7

8

amca publication 211 proportionality dimensions · · 2016-06-20amca publication 211...

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