Carrier 50KC04-06 Service And Maintenance Instructions

59APPENDIX C — FAN PERFORMANCEGeneral Fan Performance Notes1. Interpolation is permissible. Do not extrapolate.2. External static pressure is the static pressure differencebetween the return duct and the supply duct plus the staticpressure caused by any FIOPs or accessories.3. Tabular data accounts for pressure loss due to clean filters,unit casing, and wet coils. Factory options and accessoriesmay add static pressure losses.4. The Fan Performance tables offer motor/drive recommen-dations. In cases when two motor/drive combinationswould work, Carrier recommended the lower horsepoweroption.5. For information on the electrical properties of Carrier’smotors, please see the Electrical information section ofthis book.Boldface indicates field-supplied drive is required.NOTES:1. For more information, see General Fan Performance Notes above.2. Recommend using field-supplied fan pulley (part numberKR11AG006) and belt (part number KR30AE039) with field-sup-plied drive.3. Recommend using field-supplied motor pulley (part numberKR11HY161) and belt (part number KR30AE035) with field-sup-plied drive.Table C — 50KC**04 3 Ton Horizontal Supply (1 Phase)CFMAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.6 0.8 1.0RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP900 574 0.13 707 0.23 817 0.34 913 0.47 999 0.61975 597 0.15 727 0.25 835 0.37 929 0.50 1015 0.641050 621 0.18 747 0.28 853 0.40 946 0.53 1030 0.681125 646 0.20 768 0.31 872 0.43 964 0.57 1047 0.721200 671 0.23 790 0.34 892 0.47 982 0.61 1064 0.761275 696 0.26 812 0.38 912 0.51 1001 0.65 1082 0.811350 723 0.30 835 0.42 933 0.55 1020 0.70 1100 0.861425 749 0.34 859 0.46 955 0.60 1040 0.75 1119 0.911500 776 0.38 883 0.51 977 0.65 1061 0.80 1138 0.97CFMAVAILABLE EXTERNAL STATIC PRESSURE (in. wg)1.2 1.4 1.6 1.8 2.0RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP900 1078 0.77 1151 0.93 1220 1.11 1284 1.30 1346 1.49975 1093 0.80 1165 0.97 1233 1.15 1297 1.33 — —1050 1108 0.84 1180 1.01 1247 1.19 1311 1.38 — —1125 1123 0.88 1195 1.05 1261 1.23 1325 1.42 — —1200 1140 0.92 1210 1.10 1276 1.28 1339 1.47 — —1275 1157 0.97 1226 1.15 1292 1.33 — — — —1350 1174 1.02 1243 1.20 1308 1.39 — — — —1425 1192 1.08 1260 1.26 1325 1.45 — — — —1500 1210 1.14 1278 1.33 — — — — — —Medium static 770-1175 RPM, 1.2 BHP maxHigh static 1035-1466 RPM, 1.5 BHP max