Bryant Gas Heating/Electric Cooling Units 581B - Manual (Page 26)

Table 13 — 581B036 Air Delivery — Horizontal Discharge Units
AIRFLOW
(Cfm)
BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.5 0.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900 526 0.06 584 0.08 656 0.12 734 0.22 818 0.25 875 0.27
1000 570 0.09 627 0.13 738 0.19 800 0.26 848 0.29 895 0.31
1100 614 0.13 670 0.16 758 0.23 812 0.29 863 0.32 914 0.35
1200 658 0.16 710 0.23 780 0.28 840 0.32 889 0.36 938 0.40
1300 703 0.20 752 0.27 808 0.32 868 0.37 916 0.41 963 0.45
1400 725 0.29 776 0.31 845 0.38 891 0.42 937 0.47 983 0.51
1500 755 0.33 816 0.38 870 0.43 924 0.48 969 0.53 1014 0.58
AIRFLOW
(Cfm)
BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.7 0.8 0.9 1.0 1.1 1.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
900 924 0.32 953 0.35 989 0.38 1028 0.42 1074 0.45 1120 0.50
1000 936 0.35 977 0.39 1020 0.44 1064 0.48 1124 0.52 1185 0.55
1100 960 0.39 1005 0.43 1052 0.49 1100 0.52 1163 0.56 1225 0.60
1200 988 0.45 1038 0.50 1076 0.53 1136 0.59 1201 0.61 1266 0.64
1300 1012 0.51 1061 0.56 1094 0.61 1172 0.65 1239 0.69 1306 0.72
1400 1027 0.56 1071 0.60 1108 0.67 1208 0.70 1278 0.75 1347 0.79
1500 1056 0.63 1097 0.68 1117 0.70 1245 0.74 1315 0.80 1385 0.85
LEGEND
Bhp — Brake Horsepower Input to Fan
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 2.)
2. Motor drive range is 760 to 1090 rpm. All other rpms require field-supplied drive.
3. Values include losses for filters, unit casing, and wet coils.
4. Maximum continuous bhp is 1.2. 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 trip-
ping or premature motor failure. Unit warranty will not be affected.
5. Use of a field-supplied motor may affect wire sizing. Contact your local repre-
sentative to verify.
6. Interpolation is permissible. Do not extrapolate.
7. Minimum allowable cfm is 300 cfm/ton.
Table 14 — 581B048 Air Delivery — Horizontal Discharge Units
AIRFLOW
(Cfm)
BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.1 0.2 0.3 0.4 0.6 0.7 0.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200 569 0.18 641 0.23 701 0.29 761 0.34 859 0.46 901 0.52 943 0.58
1300 604 0.22 673 0.28 731 0.34 788 0.39 887 0.52 928 0.59 968 0.65
1400 640 0.27 705 0.33 761 0.39 817 0.45 914 0.59 955 0.66 996 0.72
1500 676 0.32 738 0.38 793 0.45 847 0.51 940 0.65 982 0.73 1024 0.81
1600 713 0.38 772 0.44 825 0.51 877 0.58 967 0.73 1009 0.81 1051 0.89
1700 750 0.45 806 0.51 857 0.59 908 0.66 997 0.81 1037 0.90 1077 1.01
1800 788 0.52 841 0.59 890 0.67 939 0.75 1026 0.91 1065 1.01 1104 1.07
1900 826 0.60 876 0.68 924 0.76 971 0.84 1056 1.01 1094 1.10 1132 1.18
2000 864 0.70 912 0.77 958 0.86 1004 0.94 1087 1.12 1125 1.21 1162 1.30
AIRFLOW
(Cfm)
BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.9 1.0 1.1 1.2 1.4 1.6 1.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1200 987 0.64 1030 0.70 1068 0.79 1106 0.87 1134 0.98 1189 1.12 1245 1.21
1300 1006 0.71 1044 0.77 1086 0.84 1128 0.91 1183 1.10 1226 1.23 1297 1.35
1400 1033 0.79 1069 0.86 1104 0.93 1139 1.01 1218 1.14 1286 1.34 1320 1.48
1500 1060 0.88 1095 0.95 1129 1.02 1162 1.09 1228 1.24 1303 1.40 1343 1.60
1600 1087 1.01 1123 1.05 1156 1.13 1185 1.20 1250 1.35 1319 1.51 1382 1.68
1700 1114 1.07 1151 1.15 1183 1.23 1215 1.31 1276 1.48 1334 1.64 1398 1.80
1800 1141 1.17 1178 1.26 1211 1.35 1243 1.43 1303 1.61 1359 1.78 1418 1.95
1900 1168 1.28 1204 1.37 1238 1.47 1271 1.56 1330 1.74 1386 1.93 1439 2.11
2000 1197 1.39 1231 1.48 1265 1.59 1298 1.69 1358 1.89 1413 2.08 1466 2.27
LEGEND
Bhp — Brake Horsepower Input to Fan
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 4.)
2. indicates field-supplied motor and drive required.
3. indicates maximum usable bhp.
4. Motor drive range: 840 to 1185 rpm. All other rpms require a field-supplied drive.
5. Values include losses for filters, unit casing, and wet coils.
6. Maximum continuous bhp is 1.2. 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 trip-
ping or premature motor failure. Unit warranty will not be affected.
7. Use of a field-supplied motor may affect wire sizing. Contact your local repre-
sentative to verify.
8. Interpolation is permissible. Do not extrapolate.
9. Minimum allowable cfm is 300 cfm/ton.
—26—