Specifications
31
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 6.)
2. indicates a high-static motor and drive is required.
3. Maximum continuous bhp is 3.70 for standard motors; 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 prema-
ture motor failure. Unit warranty will not be affected. For additional informa-
tion on motor performance, refer to Evaporator-Fan Motor Data tables on
pages 42 and 43.
4. Values include losses for filters, unit casing, and wet coils. See page 43 for
accessory/FIOP static pressure information.
5. Use of a field-supplied motor may affect wire sizing. Contact Bryant repre-
sentative to verify.
6. Standard motor drive range: 860 to 1080 rpm. High-static motor drive range:
830 to 1130. All other rpms require field-supplied drive.
7. Interpolation is permissible. Do not extrapolate.
551B120 (10 TONS) — STANDARD AND HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.20.40.60.81.01.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3000 459 0.46 625 0.85 691 1.01 734 1.10 787 1.30 829 1.50
3100 478 0.57 637 0.90 702 1.08 744 1.16 796 1.36 837 1.56
3200 500 0.62 647 0.97 712 1.16 753 1.23 805 1.43 845 1.63
3300 519 0.69 658 1.03 721 1.23 762 1.30 814 1.50 853 1.71
3400 537 0.77 669 1.10 731 1.30 773 1.38 823 1.57
862 1.78
3500 561 0.86 680 1.17 741 1.37 784 1.47 832 1.65
871 1.86
3600 592 0.98 692 1.24 751 1.45 796 1.57 841 1.72
880 1.95
3700 654 1.12 714 1.31 767 1.50 815 1.67
861 1.85 906 2.08
3800 668 1.20 727 1.40 780 1.60 827 1.77
873 1.95 916 2.18
3900 683 1.28 741 1.49 793 1.70 839 1.88
884 2.05 927 2.28
4000 697 1.37 754 1.59 806 1.80 851 1.99
895 2.16 938 2.38
4100 711 1.46 767 1.69 819 1.90
864 2.10 907 2.28 949 2.49
4200 726 1.56 780 1.80 832 2.01
877 2.22 919 2.41 960 2.60
4300 741 1.66 794 1.91 845 2.12
889 2.35 931 2.54 971 2.72
4400 755 1.77 808 2.03
858 2.24 902 2.48 943 2.68 983 2.86
4500 770 1.89 821 2.15
871 2.37 915 2.61 955 2.82 995 3.01
4600 784 2.00 835 2.27
884 2.49 928 2.75 968 2.96 1006 3.17
4700 799 2.13 849 2.40
897 2.63 941 2.88 981 3.11 1018 3.32
4800 814 2.25
863 2.53 910 2.77 954 3.02 993 3.27 1030 3.48
4900 829 2.39
877 2.67 923 2.92 967 3.17 1006 3.43 1043 3.65
5000 843 2.52
892 2.81 937 3.08 980 3.32 1019 3.60
1055 3.82
551B120 (10 TONS) — STANDARD AND HIGH-STATIC MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3000
886 1.73 943 1.88 988 1.91 995 1.95
3100
892 1.78 947 2.00 995 2.05 1008 2.07
3200
899 1.85 951 2.06 1000 2.17 1021 2.20
3300
907 1.93 959 2.10 1004 2.33 1036 2.36
3400
915 2.01 966 2.17 1009 2.46 1043 2.47
3500
924 2.09 974 2.24 1015 2.51 1054 2.59
3600
933 2.18 983 2.32 1023 2.58 1058 2.70
3700
950 2.27 991 2.47 1030 2.65 1064 2.82
3800
9592.3810012.5810402.7810752.96
3900
9692.5010102.7010492.9110853.11
4000
9792.6210202.8310593.0410953.25
4100
9892.7410292.9610683.1811053.39
4200
1000 2.86 1039 3.10 1077 3.31 1114 3.54
4300
1011 2.97 1049 3.23 1087 3.46 1124 3.69
4400
1022 3.10 1059 3.37 1097 3.61
1133 3.84
4500
1033 3.23 1070 3.51
1107 3.76
1143 4.00
4600
1044 3.37 1081 3.64
1117 3.92
1152 4.17
4700
1056 3.52
1092 3.78 1127 4.07
1162 4.33
4800
1057 3.69
1103 3.93
1138 4.23 1172 4.50
4900
1079 3.87
1114 4.09
1149 4.37 1182 4.68
5000
1091 4.05 1126 4.25
1160 4.53 1193 4.85
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option