Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 38

581B102 (8 1 / TONS) — STANDARD MOTOR
2
AIRFLOW
0.2
(Cfm)
Rpm Bhp Rpm
2550 550 0.69 627
2600 557 0.72 634
2700 573 0.79 648
2800 588 0.86 662
2900 604 0.94 676
3000 620 1.02 690
3100 636 1.11 704
3200 652 1.21 718
3300 668 1.31 732
3400 684 1.41 747
3500 701 1.53 762
3600 717 1.65 777
3700 733 1.77 792
3750 742 1.84 800
3800 750 1.90 807
3900 767 2.04 822
4000 783 2.18 838
4100 800 2.34 854
4200 817 2.49 869
4250 826 2.58 877
4300 834 2.66 885
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. indicates field-supplied motor and drive required.
3. Motor drive range is 840 to 1085 rpm for standard motors. All other rpms
require a field-supplied drive.
581B102 (8 / TONS) — HIGH-STATIC MOTOR
1
2
AIRFLOW
0.2
(Cfm)
Rpm Bhp Rpm
2550 550 0.69 627
2600 557 0.72 634
2700 573 0.79 648
2800 588 0.86 662
2900 604 0.94 676
3000 620 1.02 690
3100 636 1.11 704
3200 652 1.21 718
3300 668 1.31 732
3400 684 1.41 747
3500 701 1.53 762
3600 717 1.65 777
3700 733 1.77 792
3750 742 1.84 800
3800 750 1.90 807
3900 767 2.04 822
4000 783 2.18 838
4100 800 2.34 854
4200 817 2.49 869
4250 826 2.58 877
4300 834 2.66 885
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. indicates field-supplied motor and drive required.
3. Motor drive range is 860 to 1080 rpm for high-static motors. All other rpms
require a field-supplied drive.
4. 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
Bhp Rpm Bhp Rpm
0.94 692 1.17 754
0.97 698 1.21 759
1.05 711 1.29 770
1.13 723 1.38 782
1.21 737 1.48 794
1.30 750 1.58 806
1.39 764 1.69 818
1.49 778 1.80 831
1.59 793 1.92 844
1.70 807 2.04 857
1.82 821 2.16 871
1.94 835 2.29 885
2.07 849 2.42 899
2.14 856 2.49 907
2.21 863 2.56 914
2.35 877 2.71 928
2.50 891 2.86 942
2.66 905 3.02 956
2.82 920 3.19 970
2.91 928 3.28 977
3.00 935 3.37 984
EXTERNAL STATIC PRESSURE (in. wg)
0.4 0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.94 692 1.17 754 1.45
0.97 698 1.21 759 1.49
1.05 711 1.29 770 1.58
1.13 723 1.38 782 1.66
1.21 737 1.48 794 1.76
1.30 750 1.58 806 1.86
1.39 764 1.69 818 1.97
1.49 778 1.80 831 2.09
1.59 793 1.92 844 2.21
1.70 807 2.04 857 2.35
1.82 821 2.16 871 2.48
1.94 835 2.29 885 2.63
2.07 849 2.42 899 2.78
2.14 856 2.49 907 2.86
2.21 863 2.56 914 2.93
2.35 877 2.71 928 3.09
2.50 891 2.86 942 3.26
2.66 905 3.02 956 3.43
2.82 920 3.19 970 3.60
2.91 928 3.28 977 3.69
3.00 935 3.37 984 3.78
0.8 0.9 1.0
Bhp Rpm Bhp Rpm
1.45 783 1.60 812
1.49 787 1.64 816
1.58 798 1.73 827
1.66 809 1.82 837
1.76 821 1.92 848
1.86 832 2.02 849
1.97 844 2.13 870
2.09 856 2.25 882
2.21 869 2.37 894
2.35 882 2.51 907
2.48 895 2.64 919
2.63 908 2.79 932
2.78 922 2.95 945
2.86 929 3.03 952
2.93 936 3.11 958
3.09 950 3.27 972
3.26 964 3.45 986
3.43 978 3.62 1000
3.60 992 3.80 1015
3.69 999 3.90 1022
3.78 1006 3.99 1029
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 2.9 for standard 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 addi-
tional 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
812 1.74 864 1.99
816 1.79 868 2.04
827 1.88 878 2.16
837 1.98 889 2.29
848 2.08 900 2.41
849 2.18 910 2.52
870 2.29 920 2.64
882 2.40 931 2.76
894 2.53 942 2.89
907 2.66 954 3.02 1000
919 2.80 966 3.15 1011
932 2.95 978 3.30 1022
945 3.11 990 3.45 1034
952 3.20 997 3.54 1040
958 3.28 1003 3.62 1045
972 3.45 1015 3.80 1057
986 3.63 1028 3.99 1070
1000 3.81 1042 4.18 1082
1015 4.00 1055 4.38 1095
1022 4.10 1062 4.49 1102
1029 4.20 1069 4.59 1108
5. Maximum continuous bhp is 4.2 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 addi-
tional information.
6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
7. Interpolation is permissible. Do not extrapolate.
38
1.2 1.4
Bhp Rpm Bhp Rpm
1.74 864 1.99 920
1.79 868 2.04 921
1.88 878 2.16 928
1.98 889 2.29 937
2.08 900 2.41 947
2.18 910 2.52 958
2.29 920 2.64 968
2.40 931 2.76 979
2.53 942 2.89 989
2.66 954 3.02 1000
2.80 966 3.15 1011
2.95 978 3.30 1022
3.11 990 3.45 1034
3.20 997 3.54 1040
3.28 1003 3.62 1045
3.45 1015 3.80 1057
3.63 1028 3.99 1070
3.81 1042 4.18 1082
4.00 1055 4.38 1095
4.10 1062 4.49 1102
4.20 1069 4.59 1108
1.4 1.6 1.8
Bhp Rpm Bhp Rpm
920 2.39 974 2.76 1005
921 2.41 976 2.78 1008
928 2.45 983 2.88 1015
937 2.57 986 2.91 1018
947 2.70 993 3.01 1025
958 2.85 1002 3.15 1034
968 2.99 1012 3.30 1045
979 3.13 1023 3.47 1056
989 3.26 1034 3.63 1067
3.40 1044 3.79 1078
3.55 1054 3.94 1088
3.69 1065 4.10 1099
3.84 1076 4.26 1111
3.93 1082 4.27 1117
4.01 1087 4.43 1122
4.18 1098 4.60 1133
4.36 1110 4.78 1146
4.56 1122 4.97 1158
4.76 1134 5.16 1171
4.87 1140 5.27 1177
4.98 1147 5.38 1184
1.6
Bhp Rpm Bhp
2.39 974 2.76
2.41 976 2.78
2.45 983 2.88
2.57 986 2.91
2.70 993 3.01
2.85 1002 3.15
2.99 1012 3.30
3.13 1023 3.47
3.26 1034 3.63
3.40 1044 3.79
3.55 1054 3.94
3.69 1065 4.10
3.84 1076 4.26
3.93 1082 4.27
4.01 1087 4.43
4.18 1098 4.60
4.36 1110 4.78
4.56 1122 4.97
4.76 1134 5.16
4.87 — —
4.98 — —
2.0
Bhp Rpm Bhp
3.04 1034 3.31
3.06 1037 3.33
3.17 1044 3.45
3.20 1047 3.49
3.31 1055 3.61
3.47 1064 3.77
3.63 1075 3.95
3.82 1087 4.16
3.99 1098 4.35
4.17 1109 4.54
4.33 1119 4.72
4.51 1131 4.91
4.69 1143 5.10
4.70 1149 5.12
4.87 1155 5.31
5.06 1166 5.51
5.26 1179 5.73
5.47 1192 5.95
5.68 1204 6.18
5.80 1211 6.31
5.92 1218 6.45