AIR-FLOW PERFORMANCE – 12.5 TON MODELS
58
AIRFLOW PERFORMANCE—RKKB/RKMB- SERIES
AIRFLOW PERFORMANCE—12.5 TON [44 kW]
1181 3717 12004600 [2171] — — 908 2131 927 2244 947 2357 966 2470 986 2584 1005 2697 1025 2810 1044 2924 1064 3037 1083 3150 1103 3263 1122 3377 1142 3490 1161 3603
4700 [2218] 903 2178 922 2291 941 2404 961 2517 980 2631 1000 2744 1019 2857 1039 2970 1058 3084 1078 3197 1097 3310 1117 3424 1136 3537 1156 3650
3830
1175 3763
4800 [2265] 917 2345 937 2458 956 2571 976 2684 995 2798 1014 2911 1034 3024 1053 3138 1073 3251 1092 3364 1112 3477 1131 3591 1151 3704 1170
1239
3817
5100 [2407]
1190
963
3930
2889
4900 [2313]
982
932
3002
2519
1002
951
3116
2632
1021
971
3229
2745
1041
990
3342
2859
1060
1010
3456
2972
1079
1029 3085
RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W
3800 [1793] — — — — — — — — — — — — 902 1649 922 1762 941 1875 961 1989 980 2102 1000 2215 1019 2328 1039 2442 1058 2555
4000 [1888] — — — — — — — — — — 907 1761 926 1874 946 1987 965 2101 985 2214 1004 2327 1024 2440 1043 2554 1063 2667 1082 2780
4100 [1935] — — — — — — — — 900 1769 919 1882 939 1996 958 2109 978 2222 997 2335 1016 2449 1036 2562 1055 2675 1075 2788 1094 2902
4200 [1982] — — — — — — — — 912 1897 932 2010 951 2123 971 2236 990 2350 1010 2463 1029 2576 1049 2689 1068 2803 1088 2916 1107 3029
4300 [2029] — — — — — — 906 1917 925 2030 945 2144 964 2257 984 2370 1003 2483 1023 2597 1042 2710 1062 2823 1081 2937 1101 3050 1120 3163
4400 [2077] — — — — 900 1944 919 2057 939 2170 958 2284 978 2397 997 2510 1017 2624 1036 2737 1056 2850 1075 2963 1095 3077 1114 3190 1133 3303
4500 [2124] — — — — 913 2091 933 2204 952 2317 972 2430 991 2544 1011 2657 1030 2770 1050 2884 1069 2997 1089 3110 1108 3223 1128 3337 1147 3450
5000 [2360] 947 2700 967 2814 986 2927 1006 3040 1025 3153 1045 3267 1064 3380 1083 3493 1103 3607 1122 3720 1142 3833 1161 3946 1181 4060 1200 4173 1220 4286
1049 3199 1068 3312 1088 3425 1107 3538 1127 3652 1146 3765 1166 3878 1185 3991 1205 4105
5200 [2454] 978 3086 998 3199 1017 3312 1037 3425 1056 3539 1076 3652 1095 3765 1115 3879 1134 3992 1154 4105 1173 4218 1193 4332 1212 4445 1232 4558 1251 4672
3569
40561220 3943
1195 3877 1214 3990 1234 4103
1209 4044 1229 4157 1248 4270
1099 3682 1118
RPM W RPM W RPM W
1078 2668 1097 2781 1117 2895
1102 2894 1121 3007 1140 3120
1114 3015 1133 3128 1153 3242
1127 3143 1146 3256 1166 3369
1140 3276 1159 3390 1179 3503
1153 3417 1172 3530 1192 3643
1167 3563 1188 3678 1206 3790
1239 4399 1259 4513 1278 4626
1224 4218 1244 4331 1263 4445
1271 4785 1290 4898 1310 5011
Capacity 12.5 Ton [44 kW]
3795
1258
1138 3909 1157 4022 1177 4135 1196 4249 1216 4362 1235 4475 1255 4588 1274 4702 1294 4815
5300 [2501] 994 3290 1014 3403 1033 3516 1053 3630 1072 3743 1092 3856 1111 3969 1131 4083 1150 4196 1170 4309 1189 4423 1209 4536 1228 4649 1248 4762 1267 4876 1287 4989 — — — —
Air
Flow
CFM [L/s]
4170
1253 4216 1273 4330
1266 4384 1287 4497
RPM W RPM W
1136 3008 1156 3121
1160 3233 1179 3347
1172 3355 1192 3468
1185 3482 1205 3596
1198 3616 1218 3729
1211 3756 1231 3870
1225 3903 1245 4016
1298 4739 1317 4853
1283 4558 1302 4671
— — — —
1313 4928 — —
— — — —
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.20] 0.9 [.22] 1.0 [.25] 1.1 [.27] 1.2 [.30] 1.3 [.32] 1.4 [.35] 1.5 [.37] 1.6 [.40] 1.7 [.42] 1.8 [.45] 1.9 [.47] 2.0 [.50]
External Static Pressure—Inches of Water [kPa]
5600 [2643] 1045 3950
5400 [2549]
1064
1011
4063
3502
1083
1030
4176
3615
1103
1050
4290
3728
1122
1069
4403
3842
1142
1089
4516
3955
1161
1108 4068
5500 [2596] 1028 3722 1047 3835 1066 3948 1086 4062 1105 4175 1125 4288 1144 4401 1164 4515 1183 4628 1203 4741 1222 4855 1242 4968 — — — — — —
1128 4181 1147 4295 1167 4408 1186 4521 1206 4635 1225 4748 1245 4861 1264 4974 — —
5700 [2690] 1062 4186 1081 4300 1101 4413 1120 4526 1140 4639 1159 4753 1179 4866 1198 4979 — — — — — — — — — — — — — —
4630 1181 4743 1200
— — — — — —
— — — — — —
— — — — — —
4856 1220 4969 — — — — — — — — — — — — — — — —
5800 [2737] 1079 4431 1099 4544 1118 4658 1138 4771 1157 4884 1177 4998 — — — — — — — — — — — — — — — — — — — — — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
Drive Package L M
Motor H.P. [W] 3.0 [2237.1] 5.0 [3728.5]
Blower Sheave BK65 BK65
Motor Sheave 1VP-44 1VM-50
Turns Open 1234 5 6 1 2 34 5 6
RPM 1135 1087 1038 990 942 894 1283 1231 1178 1126 1074 1022
NOTES: 1. Factory sheave settings are shown in bold print.
2. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.
3. Do not operate above blower RPM shown as motor overloading will occur.
4. Do not set motor sheave below one turn open.
NOTE: L-Drive left of bold line, M-Drive right of bold line.
AIRFLOW CORRECTION FACTORS
12.5 TON [44 kW]
0.97 0.98TOTAL MBH 0.95
0.99
0.96
0.94
4400
[2077]
0.99 1.00
1.000.99
1.00
4800
[2265]
POWER kW 0.98 0.990.98
0.97
4600
[2171]
1.01
1.00
1.03
5000
[2360]
0.91SENSIBLE MBH 0.85 0.88
4200
[1982]
ACTUAL—CFM
[L/s]
3800
[1793]
4000
[1888]
1.01
1.05
1.02
5200
[2454]
1.02
1.07
1.03
5400
[2549]
1.02
1.09
1.04
5600
[2643]
1.03
1.11
1.05
5800
[2737]
COMPONENT AIR RESISTANCE, IWC 12.5 TON [44 kW]
Component
Standard Indoor Airflow—CFM [L/s]
Concentric Diffuser RXRN-AA61 or
AA71 & Transition RXMC-CE05
0.18
[0.045]
3800
[1793]
4000
[1888]
4200
[1982]
4400
[2076]
4600
[2171]
4800
[2265]
5000
[2359]
0.21
[0.052]
0.24
[0.060]
0.27
[0.067] DNA
Resistance—Inches Water [kPa]
DNA DNA
Horizontal Economizer
100% O.A. Damper Open
0.15
[0.036]
0.16
[0.040]
0.18
[0.44]
0.19
[0.047]
0.20
[0.050]
0.21
[0.052]
Wet Coil 0.082
[0.020]
0.087
[0.022]
0.093
[0.023]
0.099
[0.025]
0.105
[0.026]
0.110
[0.027]
0.115
[0.029]
0.21
[0.052]
Economizer
100% R.A. Damper Open
0.12
[0.030]
0.13
[0.032]
0.14
[0.035]
0.15
[0.037]
0.16
[0.040]
0.17
[0.042]
0.18
[0.045]
Horizontal Economizer
100% R.A. Damper Open
0.07
[0.017]
0.08
[0.020]
0.09
[0.021]
0.09
[0.022]
0.10
[0.024]
0.10
[0.025]
0.10
[0.024]
0.21
[0.052]
0.09
[0.022]
0.19
[0.047]
DNA
0.120
[0.030]
5200
[2454]
0.22
[0.055]
0.10
[0.025]
0.20
[0.050]
DNA
0.125
[0.031]
5400
[2548]
0.23
[0.057]
0.12
[0.030]
0.21
[0.052]
DNA
0.131
[0.033]
5600
[2643]
0.24
[0.060]
0.14
[0.035]
0.22
[0.055]
DNA
0.136
[0.034]
5800
[2737]
Concentric Diffuser RXRN-AA66 or
AA76 & Transition RXMC-CF06 DNA DNA DNA DNA 0.31
[0.077]
0.32
[0.080]
0.34
[0.085]
0.36
[0.090]
0.39
[0.097] DNA DNA
NOTE: Add component resistance to duct resistance to determine total external static pressure.
DNA = Data not Available.
NOTES: 1. Multiply correction factor times gross performance data.
2. Resulting sensible capacity cannot exceed total capacity.
[ ] Designates Metric Conversions
58
AIRFLOW PERFORMANCE—RKKB/RKMB- SERIES
AIRFLOW PERFORMANCE—12.5 TON [44 kW]
1181 3717 12004600 [2171] — — 908 2131 927 2244 947 2357 966 2470 986 2584 1005 2697 1025 2810 1044 2924 1064 3037 1083 3150 1103 3263 1122 3377 1142 3490 1161 3603
4700 [2218] 903 2178 922 2291 941 2404 961 2517 980 2631 1000 2744 1019 2857 1039 2970 1058 3084 1078 3197 1097 3310 1117 3424 1136 3537 1156 3650
3830
1175 3763
4800 [2265] 917 2345 937 2458 956 2571 976 2684 995 2798 1014 2911 1034 3024 1053 3138 1073 3251 1092 3364 1112 3477 1131 3591 1151 3704 1170
1239
3817
5100 [2407]
1190
963
3930
2889
4900 [2313]
982
932
3002
2519
1002
951
3116
2632
1021
971
3229
2745
1041
990
3342
2859
1060
1010
3456
2972
1079
1029 3085
RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W
3800 [1793] — — — — — — — — — — — ��� 902 1649 922 1762 941 1875 961 1989 980 2102 1000 2215 1019 2328 1039 2442 1058 2555
4000 [1888] — — — — — — — — — — 907 1761 926 1874 946 1987 965 2101 985 2214 1004 2327 1024 2440 1043 2554 1063 2667 1082 2780
4100 [1935] — — — — — — — — 900 1769 919 1882 939 1996 958 2109 978 2222 997 2335 1016 2449 1036 2562 1055 2675 1075 2788 1094 2902
4200 [1982] — — — — — — — — 912 1897 932 2010 951 2123 971 2236 990 2350 1010 2463 1029 2576 1049 2689 1068 2803 1088 2916 1107 3029
4300 [2029] — — — — — — 906 1917 925 2030 945 2144 964 2257 984 2370 1003 2483 1023 2597 1042 2710 1062 2823 1081 2937 1101 3050 1120 3163
4400 [2077] — — — — 900 1944 919 2057 939 2170 958 2284 978 2397 997 2510 1017 2624 1036 2737 1056 2850 1075 2963 1095 3077 1114 3190 1133 3303
4500 [2124] — — — — 913 2091 933 2204 952 2317 972 2430 991 2544 1011 2657 1030 2770 1050 2884 1069 2997 1089 3110 1108 3223 1128 3337 1147 3450
5000 [2360] 947 2700 967 2814 986 2927 1006 3040 1025 3153 1045 3267 1064 3380 1083 3493 1103 3607 1122 3720 1142 3833 1161 3946 1181 4060 1200 4173 1220 4286
1049 3199 1068 3312 1088 3425 1107 3538 1127 3652 1146 3765 1166 3878 1185 3991 1205 4105
5200 [2454] 978 3086 998 3199 1017 3312 1037 3425 1056 3539 1076 3652 1095 3765 1115 3879 1134 3992 1154 4105 1173 4218 1193 4332 1212 4445 1232 4558 1251 4672
3569
40561220 3943
1195 3877 1214 3990 1234 4103
1209 4044 1229 4157 1248 4270
1099 3682 1118
RPM W RPM W RPM W
1078 2668 1097 2781 1117 2895
1102 2894 1121 3007 1140 3120
1114 3015 1133 3128 1153 3242
1127 3143 1146 3256 1166 3369
1140 3276 1159 3390 1179 3503
1153 3417 1172 3530 1192 3643
1167 3563 1188 3678 1206 3790
1239 4399 1259 4513 1278 4626
1224 4218 1244 4331 1263 4445
1271 4785 1290 4898 1310 5011
Capacity 12.5 Ton [44 kW]
3795
1258
1138 3909 1157 4022 1177 4135 1196 4249 1216 4362 1235 4475 1255 4588 1274 4702 1294 4815
5300 [2501] 994 3290 1014 3403 1033 3516 1053 3630 1072 3743 1092 3856 1111 3969 1131 4083 1150 4196 1170 4309 1189 4423 1209 4536 1228 4649 1248 4762 1267 4876 1287 4989 — — — —
Air
Flow
CFM [L/s]
4170
1253 4216 1273 4330
1266 4384 1287 4497
RPM W RPM W
1136 3008 1156 3121
1160 3233 1179 3347
1172 3355 1192 3468
1185 3482 1205 3596
1198 3616 1218 3729
1211 3756 1231 3870
1225 3903 1245 4016
1298 4739 1317 4853
1283 4558 1302 4671
— — — —
1313 4928 — —
— — — —
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.20] 0.9 [.22] 1.0 [.25] 1.1 [.27] 1.2 [.30] 1.3 [.32] 1.4 [.35] 1.5 [.37] 1.6 [.40] 1.7 [.42] 1.8 [.45] 1.9 [.47] 2.0 [.50]
External Static Pressure—Inches of Water [kPa]
5600 [2643] 1045 3950
5400 [2549]
1064
1011
4063
3502
1083
1030
4176
3615
1103
1050
4290
3728
1122
1069
4403
3842
1142
1089
4516
3955
1161
1108 4068
5500 [2596] 1028 3722 1047 3835 1066 3948 1086 4062 1105 4175 1125 4288 1144 4401 1164 4515 1183 4628 1203 4741 1222 4855 1242 4968 — — — — — —
1128 4181 1147 4295 1167 4408 1186 4521 1206 4635 1225 4748 1245 4861 1264 4974 — —
5700 [2690] 1062 4186 1081 4300 1101 4413 1120 4526 1140 4639 1159 4753 1179 4866 1198 4979 — — — — — — — — — — — — — —
4630 1181 4743 1200
— — — — — —
— — — — — —
— — — — — —
4856 1220 4969 — — — — — — — — — — — — — — — —
5800 [2737] 1079 4431 1099 4544 1118 4658 1138 4771 1157 4884 1177 4998 — — — — — — — — — — — — — — — — — — — — — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
Drive Package L M
Motor H.P. [W] 3.0 [2237.1] 5.0 [3728.5]
Blower Sheave BK65 BK65
Motor Sheave 1VP-44 1VM-50
Turns Open 1234 5 6 1 2 34 5 6
RPM 1135 1087 1038 990 942 894 1283 1231 1178 1126 1074 1022
NOTES: 1. Factory sheave settings are shown in bold print.
2. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.
3. Do not operate above blower RPM shown as motor overloading will occur.
4. Do not set motor sheave below one turn open.
NOTE: L-Drive left of bold line, M-Drive right of bold line.
AIRFLOW CORRECTION FACTORS
12.5 TON [44 kW]
COMPONENT AIR RESISTANCE, IWC 12.5 TON [44 kW]
Component
Standard Indoor Airflow—CFM [L/s]
Concentric Diffuser RXRN-AA61 or
AA71 & Transition RXMC-CE05
0.18
[0.045]
3800
[1793]
4000
[1888]
4200
[1982]
4400
[2076]
4600
[2171]
4800
[2265]
5000
[2359]
0.21
[0.052]
0.24
[0.060]
0.27
[0.067] DNA
Resistance—Inches Water [kPa]
DNA DNA
Horizontal Economizer
100% O.A. Damper Open
0.15
[0.036]
0.16
[0.040]
0.18
[0.44]
0.19
[0.047]
0.20
[0.050]
0.21
[0.052]
Wet Coil 0.082
[0.020]
0.087
[0.022]
0.093
[0.023]
0.099
[0.025]
0.105
[0.026]
0.110
[0.027]
0.115
[0.029]
0.21
[0.052]
Economizer
100% R.A. Damper Open
0.12
[0.030]
0.13
[0.032]
0.14
[0.035]
0.15
[0.037]
0.16
[0.040]
0.17
[0.042]
0.18
[0.045]
Horizontal Economizer
100% R.A. Damper Open
0.07
[0.017]
0.08
[0.020]
0.09
[0.021]
0.09
[0.022]
0.10
[0.024]
0.10
[0.025]
0.10
[0.024]
0.21
[0.052]
0.09
[0.022]
0.19
[0.047]
DNA
0.120
[0.030]
5200
[2454]
0.22
[0.055]
0.10
[0.025]
0.20
[0.050]
DNA
0.125
[0.031]
5400
[2548]
0.23
[0.057]
0.12
[0.030]
0.21
[0.052]
DNA
0.131
[0.033]
5600
[2643]
0.24
[0.060]
0.14
[0.035]
0.22
[0.055]
DNA
0.136
[0.034]
5800
[2737]
Concentric Diffuser RXRN-AA66 or
AA76 & Transition RXMC-CF06 DNA DNA DNA DNA 0.31
[0.077]
0.32
[0.080]
0.34
[0.085]
0.36
[0.090]
0.39
[0.097] DNA DNA
NOTE: Add component resistance to duct resistance to determine total external static pressure.
DNA = Data not Available.
NOTES: 1. Multiply correction factor times gross performance data.
2. Resulting sensible capacity cannot exceed total capacity.
[ ] Designates Metric Conversions
3800 [1793]
3900 [1840]
4000 [1888]
4100 [1935]
4200 [1982]
4300 [2029]
4400 [2076]
4500 [2123]
4600 [2171]
4700 [2218]
4800 [2265]
4900 [2312]
5000 [2359]
5100 [2407]
5200 [2454]
5300 [2501]
5400 [2548]
5500 [2595]
5600 [2643]
5700 [2690]
5800 [2737]
Air Flow
CFM [L/s]
Model 12.5 Ton
Voltage 208/230, 460, 575 — 3 phase
External Static Pressure — Inches of Water [kPa]
0.1 [.02]
RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W RPM W
0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17] 0.8 [.20] 0.9 [.22] 1.0 [.25] 1.1 [.27] 1.2 [.30] 1.3 [.32] 1.4 [.35] 1.5 [.37] 1.6 [.40] 1.7 [.42] 1.8 [.45] 1.9 [.47] 2.0 [.50]
— — — — — — — — — — 834 1660 861 1743 888 1826 914 1909 939 1992
— — — — — — — — 820 1647 847 1734 874 1821 900 1908 926 1995 951 2082
— — — — — — — — 833 1726 860 1817 887 1908 913 1999 938 2090 963 2181
— — — — — — 820 1717 847 1812 873 1907 900 2002 925 2097 951 2192 976 2287
— — — — — — 834 1808 860 1907 887 2006 913 2106 938 2205 963 2304 988 2403
— — — — 821 1805 848 1908 874 2011 900 2114 926 2217 951 2320 976 2423 1001 2527
— — — — 835 1909 862 2016 888 2123 914 2230 939 2337 964 2445 989 2552 1013 2659
— — 823 1910 850 2021 876 2133 902 2244 928 2355 953 2466 978 2577 1002 2688 1026 2800
812 1912 838 2027 865 2142 891 2258 917 2373 942 2488 967 2603 991 2718 1015 2834 1039 2949
827 2034 854 2153 880 2272 906 2391 931 2510 956 2630 981 2749 1005 2868 1029 2987 1052 3106
842 2163 869 2287 895 2410 920 2533 946 2656 970 2780 995 2903 1019 3026 1043 3149 1066 3273
858 2302 884 2429 910 2556 935 2684 960 2811 985 2938 1009 3065 1033 3193 1056 3320 1070 3153
874 2449 900 2580 926 2711 951 2843 975 2974 1000 3105 1024 3236 1047 3368 1070 3499 1082 3316
890 2604 916 2739 941 2875 966 3010 990 3145 1015 3281 1038 3416 1062 3551 1074 3357 1095 3486
906 2768 932 2907 957 3046 982 3186 1006 3325 1030 3465 1053 3604 1076 3743 1087 3532 1107 3664
923 2940 948 3083 973 3227 997 3370 1021 3514 1045 3657 1068 3800 1079 3579 1100 3713 1120 3848
939 3121 964 3268 989 3416 1013 3563 1037 3710 1060 3858 1072 3629 1092 3766 1113 3902 1133 4039
956 3310 981 3461 1005 3613 1029 3764 1053 3916 1076 4067 1085 3820 1106 3959 1126 4098 1146 4237
973 3508 998 3663 1022 3819 1045 3974 1068 4130 1079 3877 1099 4018 1120 4159 1140 4301 1160 4442
990 3714 1014 3873 1038 4033 1062 4192 1072 3936 1093 4080 1113 4223 1134 4367 1153 4510 1173 4654
1007 3928 1031 4092 1055 4255 1078 4419 1087 4144 1107 4290 1128 4435 1148 4581 1167 4727 1187 4873
965 2075 990 2158 1014 2241 1038 2324 1062 2407 1082 2416 1104 2516 1125 2616 1146 2717 1167 2817
976 2169 1001 2256 1025 2343 1049 2430 1073 2517 1091 2516 1112 2619 1134 2722 1155 2824 1176 2927
988 2272 1013 2363 1037 2454 1060 2545 1079 2519 1100 2624 1122 2729 1143 2834 1164 2939 1184 3044
1000 2382 1024 2477 1048 2572 1072 2668 1089 2631 1110 2739 1131 2846 1152 2953 1173 3060 1193 3167
1012 2502 1036 2601 1060 2700 1077 2641 1098 2751 1120 2860 1140 2969 1161 3079 1182 3188 1202 3298
1025 2630 1048 2733 1072 2836 1087 2765 1108 2877 1129 2989 1150 3100 1171 3212 1191 3324 1211 3435
1037 2766 1061 2873 1077 2782 1098 2896 1119 3010 1139 3124 1160 3238 1180 3352 1201 3466 1221 3580
1050 2911 1073 3022 1087 2917 1108 3034 1129 3150 1150 3266 1170 3382 1190 3499 1210 3615 1230 3731
1063 3064 1077 2941 1098 3060 1119 3178 1140 3297 1160 3415 1180 3534 1200 3653 1220 3771 1240 3890
1076 3226 1089 3088 1109 3209 1130 3330 1151 3451 1171 3572 1191 3692 1211 3813 1230 3934 1250 4055
1079 3119 1100 3243 1121 3366 1141 3489 1162 3612 1182 3735 1202 3858 1221 3981 1241 4104 1260 4227
1091 3278 1112 3403 1132 3529 1153 3654 1173 3779 1193 3905 1212 4030 1232 4155 1251 4281 1270 4406
1103 3444 1124 3571 1144 3699 1164 3827 1184 3954 1204 4082 1223 4209 1243 4337 1262 4465 1281 4592
1115 3616 1136 3746 1156 3876 1176 4006 1196 4136 1215 4266 1235 4396 1254 4525 1273 4655 — —
1128 3796 1148 3928 1168 4060 1188 4192 1207 4324 1227 4457 1246 4589 1265 4721 1284 4853 — —
1140 3982 1160 4117 1180 4251 1200 4385 1219 4520 1239 4654 1258 4789 1276 4923 — — — —
1153 4176 1173 4312 1193 4449 1212 4586 1232 4722 1251 4859 1269 4996 — — — — — —
1166 4376 1186 4515 1205 4654 1225 4793 1244 4932 — — — — — — — — — —
1179 4583 1199 4724 1218 4866 1237 5007 — — — — — — — — — — — —
1193 4797 1212 4941 — — — — — — — — — — — — — — — —
1206 5018 — — — — — — — — — — — — — — — — — —
NOTE: L-Drive left of bold line, M-Drive right of bold line.
NOTES: 1. Factory sheave settings are shown in bold type.
2. Do not set motor sheave below minimum turns open shown.
3. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.
4. Drive data shown is for horizontal airflow with dry coil. add component resistance to
duct resistance to determine total E.S.P.
Drive Package
Motor H.P. [W]
Blower Sheave
Motor sheave
Turns Open
RPM
L (B-51) M (B-58
5.0 [3728.5]
BK85H
1VP-65
3.0 [2237.1]
BK72H
1VP-44
1 2 34 5 6
1058 1022 978 932 861 813
1 2 3 45 6
1278 1245 1206 1167 1138 1097
23