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TABLE 12: SUPPLY AIR BLOWER PERFORMANCE (20 TON) - COOLING ONLY 240 MBH - BOTTOM DUCT CONNECTIONS
| MOTOR |
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| AIRFLOW |
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BLOWER |
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PULLEY |
| 2.80 m3/s |
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| 3.30 m3/s |
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| 3.80 m3/s |
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| 4.10 m3/s |
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| 4.40 m3/s |
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SPEED, |
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(TURNS |
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(RPM) |
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OPEN)* | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input | |
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| (Pa) |
| (kW) |
| (kW) | (Pa) |
| (kW) |
| (kW) | (Pa) |
| (kW) |
| (kW) | (Pa) |
| (kW) |
| (kW) | (Pa) |
| (kW) |
| (kW) |
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HIGH STATIC DRIVE (m3/s) |
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895 | 6.0 | 312 |
| 3.5 |
| 4.0 | 268 |
| 3.7 |
| 4.3 | 198 |
| 4.2 |
| 4.8 | 143 |
| 4.6 |
| 5.2 | 79 |
| 5.1 |
| 5.8 |
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930 | 5.0 | 362 |
| 3.7 |
| 4.3 | 318 |
| 4.0 |
| 4.5 | 248 |
| 4.5 |
| 5.1 | 193 |
| 4.9 |
| 5.6 | 129 |
| 5.4 |
| 6.2 |
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970 | 4.0 | 421 |
| 4.0 |
| 4.5 | 377 |
| 4.2 |
| 4.9 | 306 |
| 4.8 |
| 5.5 | 252 |
| 5.2 |
| 6.0 | 187 |
| 5.8 |
| 6.6 |
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1005 | 3.0 | 473 |
| 4.2 |
| 4.8 | 429 |
| 4.5 |
| 5.1 | 359 |
| 5.1 |
| 5.8 | 304 |
| 5.6 |
| 6.4 | 240 |
| 6.1 |
| 7.0 |
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1045 | 2.0 | 535 |
| 4.4 |
| 5.0 | 491 |
| 4.8 |
| 5.5 | 420 |
| 5.4 |
| 6.2 | 365 |
| 5.9 |
| 6.8 | - |
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1080 | 1.0 | 590 |
| 4.6 |
| 5.3 | 546 |
| 5.0 |
| 5.8 | 475 |
| 5.7 |
| 6.5 | 420 |
| 6.2 |
| 7.1 | - |
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| - |
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| MOTOR |
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| AIRFLOW |
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BLOWER |
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PULLEY |
| 5930 CFM |
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| 6990 CFM |
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| 8050 CFM |
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| 8685 CFM |
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| 9320 CFM |
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SPEED, |
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(TURNS |
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(RPM) | OPEN)* | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input | ESP |
| Output |
| Input |
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| (iwg) |
| (bhp) |
| (kW) | (iwg) |
| (bhp) |
| (kW) | (iwg) |
| (bhp) |
| (kW) | (iwg) |
| (bhp) |
| (kW) | (iwg) |
| (bhp) |
| (kW) |
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HIGH STATIC DRIVE (CFM) |
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895 | 6.0 | 1.3 |
| 4.7 |
| 4.0 | 1.1 |
| 5.0 |
| 4.3 | 0.8 |
| 5.6 |
| 4.8 | 0.6 |
| 6.1 |
| 5.2 | 0.3 |
| 6.8 |
| 5.8 |
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930 | 5.0 | 1.5 |
| 5.0 |
| 4.3 | 1.3 |
| 5.3 |
| 4.5 | 1.0 |
| 6.0 |
| 5.1 | 0.8 |
| 6.6 |
| 5.6 | 0.5 |
| 7.2 |
| 6.2 |
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970 | 4.0 | 1.7 |
| 5.3 |
| 4.5 | 1.5 |
| 5.7 |
| 4.9 | 1.2 |
| 6.4 |
| 5.5 | 1.0 |
| 7.0 |
| 6.0 | 0.8 |
| 7.8 |
| 6.6 |
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1005 | 3.0 | 1.9 |
| 5.6 |
| 4.8 | 1.7 |
| 6.0 |
| 5.1 | 1.4 |
| 6.8 |
| 5.8 | 1.2 |
| 7.4 |
| 6.4 | 1.0 |
| 8.2 |
| 7.0 |
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1045 | 2.0 | 2.1 |
| 5.9 |
| 5.0 | 2.0 |
| 6.4 |
| 5.5 | 1.7 |
| 7.3 |
| 6.2 | 1.5 |
| 7.9 |
| 6.8 | - |
| - |
| - |
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1080 | 1.0 | 2.4 |
| 6.2 |
| 5.3 | 2.2 |
| 6.8 |
| 5.8 | 1.9 |
| 7.7 |
| 6.5 | 1.7 |
| 8.4 |
| 7.1 | - |
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NOTES: 1.Blower performance includes fixed outdoor air, 2” T/A filters, a dry evaporator coil and no electric heat. 2.Refer to Table 16 for additional static resistances.
ESP = External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the total static pressure of the blower.
*Do NOT close the pulley below 1 turn open.
**Factory setting.
Johnson Controls Unitary Products | 29 |