Carrier WeatherMaker 50KCQ A04 Series, Service And Maintenance Instructions

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Boldface indicates field-supplied drive is re q uired.
1. Recommend using field-supplied fan pulley (part number
KR11AZ606), motor pulley (part number KR11HY191), and belt
(part number KR29AF043) with field-supplied drive.
Table I — 50KCQ A04 - 3 Ton Horizontal Supply
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
900 574 0.13 707 0.23 817 0.34 913 0.47 999 0.61
975 597 0.15 727 0.25 835 0.37 929 0.50 1015 0.64
1050 621 0.18 747 0.28 853 0.40 946 0.53 1030 0.68
1125 646 0.20 768 0.31 872 0.43 964 0.57 1047 0.72
1200 671 0.23 790 0.34 892 0.47 982 0.61 1064 0.76
1275 696 0.26 812 0.38 912 0.51 1001 0.65 1082 0.81
1350 723 0.30 835 0.42 933 0.55 1020 0.70 1100 0.86
1425 749 0.34 859 0.46 955 0.60 1040 0.75 1119 0.91
1500 776 0.38 883 0.51 977 0.65 1061 0.80 1138 0.97
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
900 1078 0.77 1151 0.93 1220 1.11 1284 1.30 1346 1.49
975 1093 0.80 1165 0.97 1233 1.15 1297 1.33 1358 1.53
1050 1108 0.84 1180 1.01 1247 1.19 1311 1.38 1371 1.58
1125 1123 0.88 1195 1.05 1261 1.23 1325 1.42 1385 1.62
1200 1140 0.92 1210 1.10 1276 1.28 1339 1.47 1399 1.68
1275 1157 0.97 1226 1.15 1292 1.33 1354 1.53 1414 1.73
1350 1174 1.02 1243 1.20 1308 1.39 1370 1.59 1429 1.80
1425 1192 1.08 1260 1.26 1325 1.45 1386 1.65 1444 1.86
1500 1210 1.14 1278 1.33 1342 1.52 1403 1.72 1461 1.93
Medium static 819-1251 RPM, 1.5 BHP max
High static 1035-1466 RPM, 2.0 BHP max
Table J — 50KCQ A04 - 3 TON VERTICAL SUPPLY
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
900 594 0.15 740 0.25 867 0.37 981 0.52 1084 0.68
975 618 0.17 758 0.28 881 0.40 991 0.55 1092 0.71
1050 642 0.19 777 0.30 896 0.43 1003 0.58 1102 0.75
1125 668 0.22 797 0.34 912 0.47 1017 0.62 1113 0.79
1200 695 0.25 818 0.37 930 0.51 1032 0.66 1126 0.83
1275 722 0.29 841 0.41 949 0.55 1048 0.71 1140 0.88
1350 750 0.33 864 0.46 968 0.60 1065 0.76 1155 0.93
1425 778 0.37 888 0.50 989 0.65 1083 0.81 1171 0.99
1500 807 0.42 913 0.56 1011 0.71 1103 0.87 1188 1.05
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
900 1180 0.86 1269 1.05 1354 1.25 1434 1.47 1511 1.70
975 1186 0.89 1275 1.08 1358 1.29 1437 1.51 1513 1.74
1050 1194 0.92 1281 1.12 1363 1.32 1441 1.54 1516 1.78
1125 1204 0.97 1289 1.16 1370 1.37 1447 1.59 1520 1.82
1200 1215 1.01 1298 1.21 1378 1.42 1454 1.64 1526 1.87
1275 1227 1.06 1309 1.26 1387 1.47 1462 1.69 1533 1.92
1350 1240 1.12 1321 1.32 1397 1.53 1471 1.75 1541 1.99
1425 1254 1.18 1333 1.38 1409 1.59 1481 1.82 — —
1500 1270 1.24 1347 1.45 1421 1.66 1492 1.89 — —
Medium static 819-1251 RPM, 1.5 BHP max
High static 1035-1466 RPM, 2.0 BHP max
APPENDIX C — FAN PERFORMANCE