Roof Downblast Exhaust
Belt & Direct Drive
GB-071 • G-097
243⁄8
(619)
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| *23 | 3⁄4 | |||||
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| (603) | Pressure | ||||
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| 43⁄8 (111) |
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| 13⁄4 (44) |
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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 = 54/60 lbs. (24/27 kg)
All dimensions in inches (millimeters).. *May be greater depending on motor. ^Weight shown is largest cataloged Open
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| RPM (Direct) |
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| RPM |
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| HP |
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| Density 0.075 lb/ft3 |
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| E | Density 1.2 kg/m3 |
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wg) |
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(in. |
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Pressure |
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Static |
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| C | T | T |
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| D |
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Volume (cfm)
Volume (m3/hr )
Direct Drive RPM |
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| Motor HP |
| Fan | |||
| Belt |
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| Direct |
| RPM | |
071 | 097 | 720 | |||||
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| VG- | 790 | ||
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| 1/4 |
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| 860 | ||
| 0 | 0..125 |
CFM | 157 | 107 |
BHP | 0..01 | 0..01 |
Sones | 1..8 | 2..0 |
CFM | 172 | 128 |
BHP | 0..01 | 0..01 |
Sones | 2..3 | 2..3 |
CFM | 187 | 148 |
BHP | 0..02 | 0..02 |
Sones | 2..8 | 2..7 |
| Static Pressure in Inches wg |
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0..25 | 0..375 | 0..5 | 0..625 |
| 0..75 | 0..875 | 1 |
| 1..125 | |||
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| MAXIMUM BHP AT A GIVEN RPM = (RPM/3371)3 |
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| MAXIMUM RPM - |
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70 |
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| TIP SPEED (ft/min) = RPM x 2.929 |
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0..01 |
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| MAXIMUM MOTOR FRAME SIZE = 56 |
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2..2 |
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101 |
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0..02 |
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2..7 |
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1/6
or
1/8
VG
930
1000
1070
1285
1435
1580
CFM | 203 | 166 |
BHP | 0..02 | 0..02 |
Sones | 3..3 | 3..4 |
CFM | 218 | 184 |
BHP | 0..03 | 0..03 |
Sones | 3..9 | 4..0 |
CFM | 233 | 202 |
BHP | 0..03 | 0..03 |
Sones | 4..6 | 4..7 |
CFM | 248 | 220 |
BHP | 0..04 | 0..04 |
Sones | 5..3 | 5..4 |
CFM | 280 | 255 |
BHP | 0..06 | 0..06 |
Sones | 6..8 | 6..7 |
CFM | 313 | 292 |
BHP | 0..08 | 0..08 |
Sones | 8..0 | 8..0 |
CFM | 344 | 324 |
BHP | 0..10 | 0..10 |
Sones | 9..5 | 9..5 |
CFM | 376 | 356 |
BHP | 0..13 | 0..13 |
Sones | 11..3 | 11..2 |
124 |
0..02 |
3..2 |
146100
0..03 0..02
3..9 3..6
167130
0..03 0..03
4..5 4..2
187 | 152 | 109 |
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0..04 | 0..04 | 0..03 |
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5..1 | 4..9 | 4..7 |
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228 | 197 | 166 | 127 |
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0..06 | 0..05 | 0..05 | 0..05 |
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6..6 | 6..3 | 6..0 | 5..9 |
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265 | 240 | 212 | 185 | 151 |
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0..08 | 0..08 | 0..08 | 0..07 | 0..07 |
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7..9 | 7..6 | 7..3 | 7..1 | 6..9 |
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302 | 281 | 255 | 230 | 205 | 177 | 140 |
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0..10 | 0..10 | 0..10 | 0..10 | 0..10 | 0..09 | 0..09 |
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9..4 | 9..1 | 8..8 | 8..5 | 8..3 | 8..1 | 7..9 |
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339 | 316 | 297 | 273 | 250 | 227 | 205 | 171 |
0..13 | 0..13 | 0..13 | 0..13 | 0..13 | 0..13 | 0..12 | 0..12 |
11..2 | 10..8 | 10..5 | 10..2 | 9..9 | 9..7 | 9..5 | 9..3 |
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.
18
