TABLE 5: STEAM COIL CAPACITY1, MBH@2 PSIG2
STEAM COIL | UNIT MODEL | CFM | DRY BULB TEMPERATURE OF AIR ENTERING COIL, ºF | ||||
MODEL | 10 | 30 | 50 | 70 | |||
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| 1600 | 104.0 | 94.0 | 83.9 | 73.9 | |
1NF0450 | 060 |
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2000 | 115.2 | 104.0 | 93.1 | 81.9 | |||
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| 2400 | 124.9 | 113.0 | 100.9 | 89.0 | |
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| 2400 | 172.2 | 155.5 | 139.1 | 122.4 | |
| 090 |
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| 3000 | 191.2 | 172.6 | 154.3 | 136.0 | ||
1NF0451 |
| 3600 | 207.5 | 187.1 | 167.4 | 147.4 | |
| 3200 | 196.4 | 177.6 | 158.8 | 140.0 | ||
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| 120 | 4000 | 217.3 | 195.3 | 175.3 | 154.8 | |
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| 4800 | 236.1 | 212.9 | 190.4 | 167.8 | |
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| 4800 | 298.2 | 268.4 | 236.7 | 211.5 | |
1NF0452 | 180 |
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6000 | 329.1 | 297.0 | 265.6 | 234.1 | |||
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| 7200 | 356.4 | 321.8 | 287.9 | 254.0 | |
1.These capacities do not include any blower motor heat.
2.Multiply these capacities by the following factors to correct for higher steam pressures.
| Steam Pressure, psig |
| 5 | 10 |
| 15 | 20 |
| 25 |
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| Capacity correction factor |
| 1.05 | 1.12 |
| 1.19 | 1.25 |
| 1.30 |
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| NOTE: Steam rate (lb./hr.) = | 1.025 x MBH |
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| CAUTION: Do NOT operate a motor above its nominal HP rating when a unit is equipped with a steam coil acces- |
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TABLE 6: HOT WATER CAPACITY1, MBH |
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WATER COIL MODEL | UNIT MODEL |
| GPM |
| CFM |
| ENTERING WATER TEMP. MINUS ENTERING AIR TEMP., ºF | |||||||||
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| 70 |
| 90 |
| 110 |
| 130 | 150 | ||||||
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| 1600 |
| 46.5 |
| 60.4 |
| 74.6 |
| 89.0 | 101.8 |
1HW0450 | 060 |
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| 10 |
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| 2000 |
| 51.7 |
| 67.2 |
| 83.0 |
| 99.2 | 113.4 | ||||
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| 2400 |
| 56.0 |
| 73.0 |
| 90.4 |
| 107.9 | 123.3 |
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| 2400 |
| 78.0 |
| 101.3 | 124.7 |
| 148.5 | 169.7 | |
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| 090 |
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| 15 |
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| 3000 |
| 87.7 |
| 113.3 | 139.6 |
| 166.6 | 190.4 | |||
1HW0451 |
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| 3600 |
| 95.5 |
| 124.0 | 153.0 |
| 182.1 | 208.1 | ||
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| 3200 |
| 90.3 |
| 117.1 | 144.6 |
| 172.1 | 196.6 | |||
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| 120 |
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| 15 |
| 4000 |
| 100.2 |
| 130.2 | 160.7 |
| 191.3 | 218.6 | |
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| 4800 |
| 108.3 |
| 140.9 | 174.3 |
| 207.5 | 237.4 | |
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| 4800 |
| 135.5 |
| 175.1 | 215.8 |
| 257.4 | 294.1 | |
1HW0452 | 180 |
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| 20 |
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| 6000 |
| 150.0 |
| 195.0 | 240.3 |
| 285.9 | 326.6 | |||||
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| 7200 |
| 162.4 |
| 210.8 | 260.4 |
| 309.8 | 354.3 | |
1. These capacities do no include any blower motor heat.
NOTE: Water Temperature Drop, 0F = 2 x MBH
CAUTION: Do NOT operate a motor above its nominal HP rating when a unit is equipped with a hot water coil accessory.
TABLE 7: PRESSURE DROP VS. GPM
1HW0450 | GPM | 10 | 20 | 30 | |
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Pressure Drop, PSI | .10 | .32 | .67 | ||
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1HW0451 | GPM | 15 | 30 | 45 | |
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Pressure Drop, PSI | .17 | .58 | 1.22 | ||
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1HW0452 | GPM | 20 | 40 | 60 | |
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Pressure Drop, PSI | .20 | .67 | 1.41 | ||
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TABLE 8: CAPACITY CORRECTION VS. GPM
1HW0450 | GPM | 20 | 30 | |
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Capacity Correction | 1.12 | 1.16 | ||
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1HW0451 | GPM | 30 | 45 | |
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Capacity Correction | 1.11 | 1.15 | ||
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1HW0452 | GPM | 40 | 60 | |
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Capacity Correction | 1.12 | 1.17 | ||
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8 | Unitary Products Group |
