Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 39

581B120 (10 TONS) — STANDARD AND HIGH-STATIC MOTOR
AIRFLOW
0.2
(Cfm)
Rpm Bhp Rpm
3000 478 0.57 658
3100 500 0.62 669
3200 519 0.69 680
3300 537 0.77 692
3400 561 0.86 704
3500 592 0.98 715
3600 632 1.12 727
3700 677 1.20 748
3800 691 1.28 761
3900 705 1.37 773
4000 720 1.47 786
4100 734 1.56 800
4200 749 1.66 813
4300 764 1.77 826
840
4400 779 1.88
854
4500 793 1.99
4600 808 2.11 868
4700 822 2.24 882
4800 837 2.37 896
4900 852 2.51 910
5000 867 2.65 924
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. indicates high static motor and drive required.
3. Motor drive range is 860 to 1080 rpm for standard motors and 830 to 1130 for
high-static motors. All other rpms require a field-supplied drive.
581B150 (12 / TONS) — STANDARD MOTOR
1
2
AIRFLOW
0.2
(Cfm)
Rpm Bhp Rpm
3700 — — —
3800 — — —
3900 — — —
4000 — — —
4100 — — —
4200 — — —
4300 — — —
4400 — — —
4500 — — —
4600 — — 868
4700 — — 882
4800 — — 896
4900 — — 910
5000 867 2.65 924
5100 882 2.79 938
5200 896 2.95 952
5300 911 3.11 967
5400 926 3.27 981
5500 940 3.44 995
5600 955 3.62 1010
5700 970 3.80 1024
5800 985 3.99 1039
5900 1000 4.18 1053
6000 1015 4.39 1068
6100 1030 4.59 1083
6200 1046 4.81 —
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 2.)
2. Standard drive range is 900 to 1260 rpm.
3. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
EXTERNAL STATIC PRESSURE (in. wg)
0.4 0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.92 721 1.08 796 1.23
0.97 731 1.16 808 1.30
1.03 741 1.23 818 1.38
1.10 751 1.30 828 1.47
1.17 761 1.37 837 1.57
1.24 773 1.45 847 1.66
1.32 784 1.54 857 1.76
1.43 810 1.65 869 1.89
1.52 822 1.75 880 1.98
1.62 834 1.86 891 2.08
1.71 847 1.97 902 2.19
1.82 860 2.09 914 2.31
1.92 873 2.21 926 2.44
886 2.33 938 2.57
2.04
2.16 899 2.46 951 2.71
2.28 912 2.59 963 2.86
2.42 925 2.73 975 3.00
2.56 937 2.86 988 3.16
2.71 950 3.00 1001 3.32
2.86 963 3.15 1014 3.48
3.01 977 3.30 1027 3.65
EXTERNAL STATIC PRESSURE (in. wg)
0.4 0.6 0.8
Bhp Rpm Bhp Rpm Bhp
— — — 869 1.89
— — — 880 1.98
— — — 891 2.08
— — — 902 2.19
— 860 2.09 914 2.31
— 873 2.21 926 2.44
— 886 2.33 938 2.57
— 899 2.46 951 2.71
— 912 2.59 963 2.86
2.42 925 2.73 975 3.00
2.56 937 2.86 988 3.16
2.71 950 3.00 1001 3.32
2.86 963 3.15 1014 3.48
3.01 977 3.30 1027 3.65
3.17 990 3.46 1040 3.82
3.33 1003 3.63 1053 4.00
3.50 1017 3.80 1066 4.18
3.68 1030 3.98 1079 4.35
3.86 1044 4.17 1092 4.54
4.04 1058 4.38 1105 4.73
4.23 1072 4.59 1118 4.93
4.42 1086 4.80 1131 5.14
4.62 1100 5.02 — —
4.83 1114 5.25 — —
5.04 — — — —
— — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
851 1.50 898 1.78 942
861 1.57 907 1.86 951
873 1.65 916 1.95 960
884 1.72 925 2.03 969
896 1.82 934 2.12 978
907 1.92 945 2.22 987
917 2.03 957 2.32 996
928 2.17 984 2.43 1036
937 2.28 993 2.55 1046
947 2.39 1002 2.66 1055
957 2.50 1011 2.79 1064
967 2.60 1021 2.91 1072
978 2.71 1030 3.04 1081
989 2.83 1040 3.18 1090
1000 2.96 1050 3.31 1100
1012 3.09 1061 3.43 1109
1024 3.25 1071 3.56 1119
1036 3.42 1082 3.70 1129
1048 3.59 1093 3.86 1139
1060 3.76 1105 4.02 1150
1073 3.94 1117 4.20 1161
4. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
5. Maximum continuous bhp is 3.70 for standard motors and 5.25 for high-static
motors. Extensive motor and electrical testing on these units ensures that the
full range of the motor can be utilized with confidence. Using your fan motors
up to the ratings shown will not result in nuisance tripping or premature motor
failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data
tables on pages 41 and 42 for additional information.
6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
928 2.17 984 2.43 1036
937 2.28 993 2.55 1046
947 2.39 1002 2.66 1055
957 2.50 1011 2.79 1064
967 2.60 1021 2.91 1072
978 2.71 1030 3.04 1081
989 2.83 1040 3.18 1090
1000 2.96 1050 3.31 1100
1012 3.09 1061 3.43 1109
1024 3.25 1071 3.56 1119
1036 3.42 1082 3.70 1129
1048 3.59 1093 3.86 1139
1060 3.76 1105 4.02 1150
1073 3.94 1117 4.20 1161
1085 4.12 1129 4.40 1172
1098 4.30 1141 4.60 1183
1111 4.50 1153 4.80 1194
1124 4.70 1166 5.01 —
1137 4.91 1178 5.22 —
1150 5.12 — — —
— — — — —
— — — — —
— — — — —
— — — — —
— — — — —
— — — — —
4. Maximum continuous bhp is 5.25 for the standard motor. Extensive motor and
electrical testing on these units ensures that the full range of the motor can be
utilized with confidence. Using your fan motors up to the ratings shown will not
result in nuisance tripping or premature motor failure. Unit warranty will not be
affected. See Evaporator-Fan Motor Data table on pages 41 and 42 for addi-
tional information.
5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
6. Interpolation is permissible. Do not extrapolate.
39
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.01 983 2.17 1023 2.46
2.09 992 2.24 1031 2.51
2.18 1000 2.32 1039 2.58
2.27 1009 2.41 1048 2.66
2.36 1018 2.51 1057 2.75
2.46 1027 2.60 1066 2.85
2.55 1036 2.71 1075 2.96
2.68 1080 2.90 1114 3.07
2.81 1092 3.05 1129 3.25
2.94 1102 3.20 1143 3.42
3.07 1112 3.34 1155 3.59
3.20 1121 3.49 1165 3.76
3.34 1130 3.64 1175 3.92
3.48
1139 3.79 1185 4.08
3.63
1148 3.94 1194 4.25
3.78
1157 4.09 1203 4.42
3.93 1166 4.26 1212 4.58
4.09 1175 4.43 1221 4.76
4.24 1185 4.60 1230 4.93
4.38 1194 4.77 1239 5.12
4.54 1204 4.95 — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.68 1080 2.90 1114 3.07
2.81 1092 3.05 1129 3.25
2.94 1102 3.20 1143 3.42
3.07 1112 3.34 1155 3.59
3.20 1121 3.49 1165 3.76
3.34 1130 3.64 1175 3.92
3.48 1139 3.79 1185 4.08
3.63 1148 3.94 1194 4.25
3.78 1157 4.09 1203 4.42
3.93 1166 4.26 1212 4.58
4.09 1175 4.43 1221 4.76
4.24 1185 4.60 1230 4.93
4.38 1194 4.77 1239 5.12
4.54 1204 4.95 — —
4.71 1214 5.13 — —
4.91 — — — —
5.08 — — — —
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2.0
Rpm Bhp
1063 2.61
1070 2.75
1077 2.88
1086 2.95
1094 3.02
1102 3.12
1111 3.22
1135 3.17
1156 3.39
1174 3.59
1190 3.80
1203 3.99
1215 4.18
1226 4.36
1236 4.54
1246 4.72
1255 4.91
1264 5.09
— —
— —
— —
2.0
Rpm Bhp
1135 3.17
1156 3.39
1174 3.59
1190 3.80
1203 3.99
1215 4.18
1226 4.36
1236 4.54
1246 4.72
1255 4.91
1264 5.09
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