251934-YTG-G-0708
58
Johnson Controls Unitary Products
ZR300 (25 Ton) Bottom Duct
Air Flow
(CFM)
Available External Static Pressure - IWG
1
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Low Static 7.5 HP & Drive
Standard 10 HP & Drive
6600
796 3.24 827 3.65 859 4.04 890 4.40 920 4.75 951 5.08 983 5.40 1014 5.70 1047 6.00 1081 6.28 1116 6.55 1152 6.82
7000
821 3.81 853 4.22 884 4.61 915 4.97 946 5.32 977 5.65 1008 5.97 1040 6.27 1073 6.57 1106 6.85 1141 7.12 1177 7.39
7400
848 4.43 880 4.84 911 5.23 942 5.60 973 5.95 1004 6.28 1035 6.59 1067 6.90 1100 7.19 1134 7.47 1168 7.75 1205 8.02
7800
877 5.12 909 5.53 940 5.91 971 6.28 1002 6.63 1033 6.96 1064 7.28 1096 7.58 1129 7.87 1162 8.16 1197 8.43 1234 8.70
8200
908 5.86 940 6.27 971 6.65 1002 7.02 1032 7.37 1063 7.70 1095 8.02 1127 8.32 1159 8.61 1193 8.90 1228 9.17 1264 9.44
8600
940 6.66 971 7.07 1002 7.46 1033 7.82 1064 8.17 1095 8.50 1126 8.82 1158 9.12 1191 9.42 1225 9.70 1259 9.97 1296 10.24
9000
973 7.52 1004 7.93 1035 8.32 1066 8.69 1097 9.04 1128 9.37 1159 9.68 1191 9.99 1224 10.28 1258 10.56 1292 10.84 1329 11.11
9400
1007 8.45 1038 8.86 1070 9.24 1101 9.61 1131 9.96 1162 10.29 1194 10.61 1225 10.91 1258 11.20 1292 11.49 1327 11.76 1363 12.03
9800
1042 9.43 1074 9.84 1105 10.23 1136 10.60 1167 10.95 1198 11.28 1229 11.59 1261 11.90 1293 12.19 1327 12.47 1362 12.75 1398 13.02
10200
1078 10.48 1110 10.89 1141 11.28 1172 11.64 1203 11.99 1234 12.32 1265 12.64 1297 12.94 1330 13.24 1363 13.52 1398 13.79 1434 14.06
10600
1115 11.59 1147 12.00 1178 12.38 1209 12.75 1240 13.10 1271 13.43 1302 13.75 1334 14.05 1367 14.34 1400 14.62 1435 14.90 1472 15.17
11000
1153 12.75 1185 13.16 1216 13.55 1247 13.91 1278 14.26 1309 14.59 1340 14.91 1372 15.21 1405 15.51 1438 15.79 1473 16.06 1510 16.34
11400
1192 13.97 1224 14.38 1255 14.77 1286 15.14 1317 15.49 1348 15.82 1379 16.13 1411 16.44 1444 16.73 1477 17.01
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-
-
-
11800
1232 15.25 1264 15.66 1295 16.05 1326 16.42 1356 16.77 1387 17.10
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-
-
-
-
-
-
-
-
-
-
12200
1272 16.59 1304 17.00
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High Static 15 HP & Drive
15 HP & Field Supplied Drive
Air Flow
(CFM)
Available External Static Pressure - IWG
1
1. Blower performance includes gas heat exchangers and 2” filters. See STATIC
RESISTANCE table for additional applications.
2. See RPM SELECTION table to determine desired motor sheave setting and to
determine the maximum continuous BHP.
3. kW = BHP x 0.82.
2.8
3.0
3.2
3.4
RPM BHP RPM BHP RPM BHP RPM BHP
High Static 15 HP & Drive
6600
1190 7.09 1230 7.36 1272 7.62 1316 7.89
7000
1215 7.66 1255 7.93 1297 8.19 1341 8.46
7400
1243 8.29 1282 8.55 1324 8.82 1369 9.08
7800
1272 8.97 1311 9.23 1353 9.50 1397 9.77
8200
1302 9.71 1342 9.97 1384 10.24 1428 10.51
8600
1334 10.51 1374 10.78 1415 11.04 1460 11.31
9000
1367 11.37 1407 11.64 1448 11.90 1493 12.17
9400
1401 12.30 1441 12.56 1483 12.83 1527 13.10
9800
1436 13.28 1476 13.55 1518 13.82 1562 14.08
10200
1472 14.33 1512 14.60 1554 14.86 1598 15.13
10600
1510 15.44 1549 15.70 1591 15.97 1635 16.23
11000
1548 16.60 1587 16.87 1629 17.13
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-
11400
-
-
-
-
-
-
-
-
11800
-
-
-
-
-
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-
12200
-
-
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-
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-
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15 HP & Field Supplied Drive