Bryant 581A Installation And Service Instructions Manual page 19

Table 7 — Fan Performance — 581A155300 (High Heat Units with Standard Indoor Fan Motor
CFM 0.2
Rpm Watts Bhp
3750 753 915 1.05
4000 764 1006 1.16
4250 798 1147 1.32
4500 832 1301 1.50
4750 868 1467 1.69
5000 903 1648 1.89
5250 939 1842 2.12
976 2050 2.36
5500
5750 1012 2273 2.61
1049 2511 2.89
6000
CFM 1.2
Rpm Watts Bhp
3750 1227 1973 2.27
4000 1241 2120 2.44
1258 2281 2.62
4250
4500 1275 2454 2.82
1295 2642 3.04
4750
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5000
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5250
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5500
5750 — —
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6000
LEGEND
Bhp — Brake Horsepower
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
*Standard low-medium static drive range is 834 to 1064 rpm. Alternate
high-static drive range is 1161 to 1426. Other rpms require a field-
supplied drive.
NOTES:
1. Maximum continuous bhp for the standard motor is 3.13. The maxi-
mum continuous watts is 2700. Do not adjust motor rpm such that
motor maximum bhp and/or watts is exceeded at the maximum
operating cfm.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Rpm Watts Bhp
844 1077 1.24
872 1211 1.39
901 1357 1.56
931 1516 1.74
962 1688 1.94
994 1873 2.15
1026 2073 2.38
1059 2286 2.63
1093 2514 2.89
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AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm Watts Bhp
1310 2218 2.55
1323 2368 2.72
1337 2531 2.91
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0.6
Rpm Watts Bhp Rpm
949 1287 1.48 1047
972 1425 1.64 1067
997 1576 1.81 1089
1024 1739 2.00 1112
1051 1916 2.20 1136
1079 2106 2.42 1161
1109 2309 2.66 1188
1139 2528 2.91 —
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1.6
Rpm Watts Bhp Rpm
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1390 2471 2.84
1400 2623 3.02 —
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2. Static pressure losses (i.e., economizer) must be added to external
static pressure before entering Fan Performance table.
3. Interpolation is permissible. Do not extrapolate.
4. Fan performance is based on wet coils, clean filters, and
casing losses. See Table 13 for accessory/FIOP static pressure
information.
5. Extensive motor and drive testing on these units ensures that the full
bhp and watts range of the motor can be utilized with confidence.
Using your fan motors up to the watts or bhp rating shown will not
result in nuisance tripping or premature motor failure. Unit warranty
will not be affected.
6. Use of a field-supplied motor may affect wiring size. Contact your
Bryant representative for details.
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0.8 1.0
Watts Bhp Rpm Watts
1507 1.73 1139 1735
1648 1.90 1156 1880
1803 2.07 1175 2038
1970 2.27 1195 2209
2151 2.47 1217 2393
2345 2.70 1240 2590
2553 2.9 — —
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1.8 2.0
Watts Bhp Rpm Watts
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Bhp
2.00
2.16
2.34
2.54
2.75
2.98
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Bhp
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