Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B - Manual (Page 33)

33
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
LEGEND
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. Motor drive range is 760 to 1090 rpm for standard motors; 1075 to 1455 rpm
for high-static motors. All other rpms require a field-supplied drive.
3. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
4. Maximum continuous bhp is 1.20 for standard motors; 2.40 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.
5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant rep-
resentative to verify.
6. Interpolation is permissible. Do not extrapolate.
581B036 (3 TONS) — STANDARD MOTOR
AIRFLOW
(Cfm)
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
581B036 (3 TONS) — STANDARD MOTOR (cont)
AIRFLOW
(Cfm)
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
581B036 (3 TONS) — HIGH-STATIC MOTOR
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
900 584 0.08 734 0.22 875 0.27 953 0.36 1028 0.42
1000 627 0.13 800 0.26 895 0.31 977 0.39 1064 0.48
1100 670 0.16 812 0.29 914 0.35 1005 0.43 1100 0.52
1200 710 0.23 840 0.32 938 0.40 1038 0.50 1136 0.59
1300 752 0.27 868 0.37 963 0.45 1061 0.56 1172 0.65
1400 776 0.31 891 0.42 983 0.51 1071 0.60 1208 0.70
1500 816 0.38 924 0.48 1014 0.58 1097 0.68 1245 0.74
581B036 (3 TONS) — HIGH-STATIC MOTOR (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
900 1120 0.54 1155 0.59 1186 0.64 1215 0.69 1240 0.73
1000 1185 0.60 1222 0.66 1255 0.71 1285 0.77 1312 0.82
1100 1225 0.65 1263 0.71 1298 0.77 1328 0.83 1357 0.88
1200 1266 0.72 1306 0.79 1341 0.86 1373 0.92 1402 0.98
1300 1306 0.79 1347 0.87 1383 0.94 1416 1.01 1446 1.07
1400 1347 0.87 1389 0.95 1427 1.03 1461 1.11 1492 1.18
1500 1385 0.96 1428 1.05 1467 1.14 1502 1.22 1534 1.30
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option