Greenheck Fan manual GB-091 G-099, Maximum BHP AT a Given RPM = RPM/27033

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Roof Downblast Exhaust

Belt & Direct Drive

GB-091G-099

2438

(619)

 

 

 

 

 

 

 

(Pa)

 

 

 

 

*23

34

 

(603)

Pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

438 (111)

 

 

 

Static

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

134 (44)

 

 

 

 

 

19

(483)

Damper Size = 12 x 12 (305 x 305) Roof Opening = 141/2 x 141/2 (368 x 368) Shroud Thickness = 0.051 (1.3) Motor Cover Thickness = 0.040 (1.0) Curb Cap Thickness = 0.064 (1.6)

^Approximate Unit Weight G/GB = 54/61 lbs. (24/28 kg)

All dimensions in inches (millimeters).. *May be greater depending on motor. ^Weight shown is largest cataloged Open Drip-Proof motor.

 

 

 

 

 

 

 

 

 

 

 

 

RPM (Belt)

 

 

 

 

 

 

 

 

 

 

 

 

RPM (Direct)

 

 

 

 

 

 

 

 

 

 

 

 

RPM (Vari-Green)

 

 

 

 

 

 

 

 

 

 

 

 

HP

 

 

 

 

 

 

 

 

 

 

 

Density

0.075 lb/ft3

 

 

 

 

 

 

 

 

 

 

E

Density 1.2 kg/m3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

U

 

 

wg)

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

(in.

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

Pressure

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

Static

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

O

T

 

 

 

 

 

 

 

 

 

T

T

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

E

L

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

Volume (cfm)

Volume (m3/hr )

Direct Drive RPM

 

 

 

C-860 RPM

B-1140 RPM

A-1725 RPM

VG-1725 RPM

 

 

Motor HP

Fan

 

Belt

Direct

RPM

091

099

 

 

 

 

 

720

 

 

VG-

790

 

 

1/4

 

 

 

 

 

 

 

 

 

 

 

 

 

C-1/8

860

 

0

0..125

CFM

546

403

BHP

0..02

0..02

Sones

3..6

3..5

CFM

599

471

BHP

0..02

0..02

Sones

4..2

4..1

CFM

652

536

BHP

0..03

0..03

Sones

4..9

4..7

 

Static Pressure in Inches wg

 

 

 

 

 

0..25

0..375

0..5

0..625

 

0..75

0..875

1

1..125

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAXIMUM BHP AT A GIVEN RPM = (RPM/2703)3

 

 

 

 

 

MAXIMUM RPM - GB-091=1710, G-099=1725

 

291

 

 

 

 

TIP SPEED (ft/min) = RPM x 2.929

 

 

0..02

 

 

 

 

MAXIMUM MOTOR FRAME SIZE = 56

 

 

 

 

 

 

 

 

3..9

 

 

 

 

 

 

 

 

 

 

 

400

 

 

 

 

 

 

 

 

 

 

 

0..03

 

 

 

 

 

 

 

 

 

 

 

4..5

 

 

 

 

 

 

 

 

 

 

 

1/4

VG -Vari-Green is a direct drive brushless DC motor.

930

1000

1070

B-1/6 1140

1285

1435

1580

A-1/4 1725

CFM

705

598

BHP

0..04

0..04

Sones

5..6

5..5

CFM

758

659

BHP

0..04

0..05

Sones

6..4

6..2

CFM

811

718

BHP

0..05

0..06

Sones

7..3

7..1

CFM

864

777

BHP

0..07

0..07

Sones

8..3

8..1

CFM

974

897

BHP

0..09

0..10

Sones

9..5

9..4

CFM

1087

1018

BHP

0..13

0..14

Sones

10..7

10..6

CFM

1197

1135

BHP

0..17

0..18

Sones

12..1

12..0

CFM

1307

1250

BHP

0..23

0..23

Sones

13..6

13..5

481

0..04

5..1

552414

0..05 0..05

5..8 5..6

621512

0..06 0..06

6..7 6..3

687

590

457

 

 

 

 

 

0..07

0..07

0..07

 

 

 

 

 

7..6

7..1

6..8

 

 

 

 

 

819

736

647

526

 

 

 

 

0..10

0..10

0..11

0..10

 

 

 

 

9..0

8..5

8..2

7..9

 

 

 

 

949

877

801

721

615

404

 

 

0..14

0..14

0..15

0..15

0..15

0..12

 

 

10..4

10..0

9..6

9..3

9..0

8..4

 

 

1072

1009

941

872

799

707

583

 

0..19

0..19

0..19

0..20

0..20

0..20

0..19

 

11..9

11..5

11..2

10..9

10..6

10..3

9..8

 

1192

1135

1076

1013

949

883

806

707

0..24

0..24

0..25

0..25

0..26

0..26

0..26

0..25

13..4

13..2

12..9

12..6

12..3

12..0

11..8

11..5

Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: free inlet hemispherical sone levels.

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Contents Centrifugal Roof Downblast Exhaust Fans Codes and Certifications Models G and GBModel Comparison Construction Features Models G and GBModel GB Belt Drive Problems after a seismic event ApplicationsEmergency Smoke Control GB Seismic G and GBHigh Wind and Hurricane G and GB Constant Volume Load Shape OptionsVari-GreenMotor Model G HypotheticalVari-GreenControls Demand Control VentilationOptions and Accessories Roof CurbsSpeed Controllers for Standard Motors Wheel Rotation Typical InstallationsGeneral Clean Air figure Model Number Code GB 240 HP VG/5/AFan Inlet Connections RPM Roof Downblast Exhaust Direct Drive060 G-065 070 G-075 080 G-085 090 G-095 Roof Downblast Exhaust Belt & Direct Drive GB-071 G-097Maximum BHP AT a Given RPM = RPM/33713 Maximum Motor Frame Size =GB-081 G-098 Maximum BHP AT a Given RPM = RPM/29853GB-091 G-099 Maximum BHP AT a Given RPM = RPM/27033GB-101 G-103 Maximum BHP AT a Given RPM = RPM/25933 Maximum RPM =GB-101HP G-103HP Maximum BHP AT a Given RPM = RPM/31653GB-121 G-123 Maximum BHP AT a Given RPM = RPM/21703 Maximum RPM =GB-131 G-133 Maximum BHP AT a Given RPM = RPM/20473Maximum Motor Frame Size = 145T GB-141 G-143Maximum BHP AT a Given RPM = RPM/16763 GB-141HP G-143HP Maximum BHP AT a Given RPM = RPM/23513GB-161 G-163 Maximum BHP AT a Given RPM = RPM/1355Maximum BHP AT a Given RPM = RPM/1708 Roof Downblast BeltExhaustDrive SizeBelt-Drive GB H-GBGB-161HP Maximum Motor Frame Size = 184T GB-180 G-183Maximum BHP AT a Given RPM = RPM/1149 Maximum BHP AT a Given RPM = RPM/1325 Roof Downblast Exhaust Belt DriveGB-180HP GB-200 G-203 Maximum BHP AT a Given RPM = RPM/938GB-220HP Maximum BHP AT a Given RPM = RPM/1106GB-220 Maximum BHP AT a Given RPM = RPM/782Maximum BHP AT a Given RPM = RPM/838 GB-240 Maximum BHP AT a Given RPM = RPM/715GB-240HP Maximum BHP AT a Given RPM = RPM/845GB-260 Maximum BHP AT a Given RPM = RPM/572GB-300 Maximum BHP AT a Given RPM = RPM/517GB-300HP Maximum BHP AT a Given RPM = RPM/613Maximum Motor Frame Size = 215T GB-330Maximum BHP AT a Given RPM = RPM/405 GB-360 Maximum BHP AT a Given RPM = RPM/394GB-360HP Maximum BHP AT a Given RPM = RPM/431GB-420 GB-480 Maximum BHP AT a Given RPM = RPM/245GB-500 Maximum Motor Frame Size = 256TGB-540 Maximum BHP AT a Given RPM = RPM/202Vari-GreenControls Specification SpecificationsVari-GreenMotor Specification Direct Drive Specifications Model GDirect Drive, Severe Duty Specifications High Wind SpecificationsBelt Drive Specifications Model GBBelt Drive, Severe Duty Specifications Smoke Control Specifications071-091 097 5-10 101101HP 5-10 103HP 121 123