Bryant Preferred Series User Manual

81
Italics indicate a high static drive package with different motor pulley is
required.
UNDERSCORE
indicates operation point covered by mid static drive.
Confirm max BHP coverage based on the unit voltage.
NOTE: Fan tables include highest gas heat.
NOTE: Do not adjust pulley further than 5 turns open.
Table J — 581J 28 Vertical Supply (25 Tons)
CFM
AVAILABLE 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
7500
731 2.21 796 2.60 856 3.00 911 3.40 963 3.81
8150
783 2.76 844 3.19 901 3.61 954 4.05 1003 4.49
8750
832 3.35 890 3.80 943 4.26 994 4.73 1042 5.19
9400
885 4.08 940 4.57 991 5.06 1039 5.55 1085 6.05
10000
934 4.85 986 5.36 1035 5.88 1082 6.40 1126 6.93
10650
988 5.78 1038 6.33 1084 6.88 1129 7.44 1172 8.00
11250
1038 6.74 1086 7.32 1130 7.91 1173 8.49 ——
11900
1093 7.91 1138 8.52 1181 9.14 ————
12500
1144 9.10 1187 9.74 ——————
CFM
AVAILABLE 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
7500
1011 4.23 1058 4.66 1102 5.09 1145 5.53 1186 5.98
8150
1050 4.94 1095 5.39 1138 5.85 1180 6.32 ——
8750
1088 5.67 1131 6.15 1173 6.64 ————
9400
1129 6.56 1172 7.07 ——————
10000
1169 7.47 ————————
10650 ——————————
11250 ——————————
11900 ——————————
12500 ——————————
Standard static 717-911 RPM, 4.9 Max BHP
Medium static 913-1116 RPM
Voltage 208v / 230v / 460v / 575v
Max BHP 6.5 / 6.9 / 7.0 / 8.3
High static 941-1176 RPM
Voltage 208v / 230v / 460v / 575v
Max BHP 10.5 / 11.9 / 11.9 / 11.0
Table K — Pulley Adjustment (Vertical) - Fan RPM at Motor Pulley Settings
MODEL SIZE
MOTOR/DRIVE
COMBO
MOTOR PULLEY TURNS OPEN
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
17
3-phase
Standard Static 680 663 647 630 614 597
580 564 547 531 514
Medium Static 863 845 826 808 789 771
753 734 716 697 679
High Static 1009 991 972 954 936 918
899 881 863 844 826
20
3-phase
Standard Static 822 802 782 762 742 722
702 682 662 642 622
Medium Static 879 862 846 829 813 796
779 763 746 730 713
High Static 1078 1058 1039 1019 1000 980
960 941 921 902 882
24
3-phase
Standard Static 863 846 828 811 794 777
759 742 725 707 690
Medium Static 1021 1002 984 965 947 928
909 891 872 854 835
High Static 1176 1153 1129 1106 1082 1059
1035 1012 988 965 941
28
3-phase
Standard Static 911 892 872 853 833 814
795 775 756 736 717
Medium Static 1116 1096 1075 1055 1035 1015
994 974 954 933 913
High Static 1176 1153 1129 1106 1082 1059
1035 1012 988 965 941
Factory settings
APPENDIX C — FAN PERFORMANCE

Bryant Preferred Series Specifications

General

Brand	Bryant
Model	Preferred Series
Category	Air Conditioner
Language	English