Specifications

41
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont))
LEGEND
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 5.)
2. Maximum continuous bhp is 5.25 with 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.
3. Values include losses for filters, unit casing, and wet coils. See page 43 for
accessory/FIOP static pressure information.
4. Use of a field-supplied motor may affect wire sizing. Contact Bryant repre-
sentative to verify. For additional information on motor performance, refer to
Evaporator-Fan Motor Data table on pages 42 and 43.
5. Standard motor drive range: 900 to 1260 rpm.
6. Interpolation is permissible. Do not extrapolate.
551B150 (12
1
/
2
TONS) — STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3700
——————————
3800
——————————
3900
——————————
4000
————————
861 2.02
4100
————————
871 2.13
4200
————————
883 2.25
4300
————————
896 2.38
4400
————————908 2.51
4500
——————
867 2.35
919 2.63
4600
——————
877 2.46
929 2.75
4700
——————
888 2.59
938 2.87
4800
——————
899 2.72
947 2.98
4900
————
863 2.57
910 2.86 957 3.11
5000
————
875 2.70
921 2.99 966 3.24
5100
————
887 2.83
932 3.13 976 3.38
5200
————
898 2.96
943 3.28 987 3.53
5300
——
868 2.85
909 3.09 955 3.42 998 3.69
5400 869 2.92 882 3.01
920 3.24 967 3.57 1009 3.86
5500 885 3.09 897 3.17
932 3.38 978 3.72 1029 4.03
5600
901 3.26 911 3.33 943 3.54 990 3.87 1031 4.20
5700
917 3.44 926 3.50 956 3.70 1002 4.03 1042 4.38
5800
933 3.62 941 3.68 968 3.87 1013 4.20 1053 4.56
5900
949 3.81 956 3.87 981 4.05 1025 4.37 1065 4.74
6000
965 4.01 972 4.06 995 4.23 1037 4.55 1076 4.92
6100
981 4.21 987 4.26 1008 4.42 1042 4.73 1088 5.10
6200
9974.4210024.4610224.6210584.91 ——
6300
1014 4.64 1018 4.68 1036 4.83 1070 5.11 ——
551B150 (12
1
/
2
TONS) — STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
3700 879 1.95
927 2.17 973 2.38 1013 2.57 1046 2.73
3800 889 2.03
934 2.26 980 2.48 1022 2.69 1058 2.87
3900 898 2.12
942 2.36 987 2.59 1030 2.81 1068 3.01
4000
908 2.21 950 2.46 994 2.70 1037 2.92 1077 3.14
4100
917 2.32 960 2.55 1001 2.81 1045 3.04 1085 3.21
4200
925 2.44 969 2.65 1009 2.92 1051 3.17 1092 3.40
4300
935 2.56 979 2.77 1018 3.03 1058 3.29 1100 3.53
4400
945 2.68 988 2.89 1028 3.14 1066 3.41 1106 3.67
4500
955 2.82 996 3.02 1037 3.25 1074 3.54 1113 3.81
4600
9672.9610053.1610463.3810843.6611213.95
4700
9803.1110153.3010563.5210933.7911294.09
4800
9923.2610253.4510643.6711033.9211374.22
4900
1003 3.41 1036 3.61 1073 3.83 1112 4.07 1147 4.36
5000
1014 3.56 1049 3.79 1083 4.00 1121 4.23 1157 4.50
5100
1024 3.71 1061 3.96 1093 4.17 1129 4.40 1166 4.66
5200
1033 3.84 1073 4.14 1103 4.34 1138 4.58 1175 4.82
5300
1042 3.98 1084 4.31 1115 4.53 1148 4.76 1184 5.01
5400
1051 4.14 1095 4.49 1128 4.74 1158 4.95 1193 5.20
5500
1061 4.30 1105 4.66 1140 4.94 1168 5.15 ——
5600
1071 4.46 1114 4.81 1152 5.14 ————
5700
1081 4.64 1123 4.98 ——————
5800
1092 4.84 1132 5.15 ——————
5900
1103 5.04 ————————
6000
1114 5.24 ————————
6100
——————————
6200
——————————
6300
——————————
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option