Carrier 58CTA Installation And Service Instructions Manual page 18

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FURNACE RETURN-AIR
SIZE INLET
Bottom
024045 or
Side(s)
Bottom
036045 or
Side(s)
Bottom
024070 or
Side(s)
Bottom
036070 or
Side(s)
Bottom
048070 or
Side(s)
Bottom
042090 or
Side(s)
Bottom
048090 or
Side(s)
Bottom
Only
Both Side or
060090
1 Side & Bottom
1 Side Only
Bottom
036110 or
Side(s)
Bottom
048110 or
Side(s)
Bottom
Only
Bottom Sides or
066110
1 Side & Bottom
1 Side Only
*A filter is required for each return-air inlet. Airflow performance included 1-in. washable filter media such as contained in factory-authorized accessory filter rack. To
determine airflow performance without this filter, assume an additional 0.1 in. wc available external static pressure.
-- Indicates unstable operating conditions.
Table 5—Air Delivery - CFM (With Filter)*
SPEED
0.1 0.2
High 1120 1075
Med-High 930 890
Med-Low 820 785
Low 725 690
High 1465 1400
Med-High 1295 1260
Medium 1150 1120
Med-Low 1030 1010
Low 860 835
High 1140 1105
Med-High 915 885
Med-Low 795 770
Low 690 665
High 1440 1400
Med-High 1180 1165
Medium 1015 1020
Med-Low 885 885
Low 695 700
High 1840 1790
Med-High 1610 1575
Medium 1460 1430
Med-Low 1260 1240
Low 1065 1040
High 1650 1600
Med-High 1515 1485
Med-Low 1385 1360
Low 1205 1180
2060 2000
High
1710 1695
Med-High
1470 1475
Med-Low
1260 1365
Low
1030 1025
High 2380 2295
Med-High 2185 2115
Medium 1905 1865
Med-Low 1595 1565
Low 1340 1310
High 2485 2415
Med-High 2175 2130
Medium 1845 1815
Med-Low 1540 1515
Low 1280 1250
High 2420 2345
Med-High 2160 2110
Medium 1850 1815
Med-Low 1530 1490
Low 1290 1250
High 1625 1575
Med-High 1510 1470
Med-Low 1360 1335
Low 1195 1180
High 2055 1990
Med-High 1750 1725
Medium 1545 1525
Med-Low 1300 1290
Low 1050 1045
High 2530 2460
Med-High 2225 2190
Medium 1895 1885
Med-Low 1565 1555
Low 1320 1295
High -- --
Med-High 2205 2175
High 2485 2430
Med-High 2155 2135
Medium 1830 1830
Med-Low 1520 1505
Low 1275 1260
EXTERNAL STATIC PRESSURE (IN. WC)
0.3 0.4 0.5 0.6
1020 960 895 815
850 805 750 680
750 700 650 585
655 605 555 495
1325 1250 1175 1085
1210 1155 1090 1015
1085 1040 985 920
980 945 895 835
810 780 745 700
1055 1010 955 885
855 825 785 725
740 700 655 600
630 590 550 475
1355 1300 1240 1170
1150 1125 1085 1030
1010 990 965 925
880 865 845 815
700 690 670 640
1730 1670 1605 1530
1535 1485 1435 1370
1400 1360 1315 1260
1215 1180 1145 110
1015 985 955 915
1535 1465 1385 1285
1440 1380 1300 1220
1320 1260 1195 1120
1160 1120 1065 1005
1930 1835 1755 1620
1665 1585 1480 1390
1450 1390 1335 1230
1245 1225 1165 1090
1020 990 940 890
2205 2105 2005 1900
2045 1960 1875 1770
1815 1740 1670 1590
1530 1485 1430 1355
1280 1225 1170 1120
2330 2230 2135 2030
2070 2000 1930 1840
1770 1720 1655 1580
1475 1435 1385 1335
1220 1190 115 1105
2265 2165 2070 1960
2045 1960 1885 1790
1765 1710 1635 1560
1455 1420 1375 1320
1220 1190 115 1110
1515 1445 1355 1260
1415 1355 1285 1185
1295 1250 1180 1100
1155 1115 1065 980
1910 1815 1695 1575
1670 1605 1515 1400
1490 1445 1355 1260
1275 1235 1165 1085
1015 975 935 880
2380 2285 2200 2085
2135 2075 1995 1910
1865 1820 1770 1700
1535 1505 1465 1410
1265 1235 1205 1160
2415 2330 2235 2125
2120 2065 1975 1900
2360 2270 2175 2070
2100 2040 1970 1885
1810 1780 1730 1665
1490 1470 1430 1385
1240 1210 1180 1135
16
0.7 0.8 0.9 1.0
720 605 455 340
600 500 345 195
505 400 235
405 305 --
980 860 725 560
930 830 700 545
835 740 620 510
765 685 570 345
635 555 445 260
815 715 545 390
655 530 420 280
510 420 325
415 340 245
1090 1000 890 745
970 890 785 645
875 800 700 560
770 700 605 475
600 540 460 345
1450 1370 1275 1170
1305 1230 1145 1055
1205 1130 1055 965
1040 985 915 835
875 825 765 695
1175 1055 895 645
1115 990 830 600
1025 915 710 565
925 810 630 510
1490 1315 1115 910
1245 1110 955 775
1120 1005 855 690
995 880 750 600
810 720 615 500
1775 1650 1510 1335
1655 1535 1400 1240
1490 1390 1245 1110
1275 1160 1055 920
1040 955 850 750
1920 1790 1645 1485
1740 1620 1495 1345
1500 1395 1270 1090
1270 1175 1045 915
1035 945 845 745
1850 1720 1570 1420
1695 1570 1445 1305
1480 1380 1250 1110
1250 1160 1055 905
1040 950 835 740
1165 990 785 595
1070 890 725 530
985 810 670 475
860 740 605 410
1425 1230 1090 910
1255 1120 975 785
1135 1020 880 750
1005 895 750 620
815 715 610 515
1970 1835 1695 1545
1805 1695 1565 1430
1610 1520 1410 1290
1350 1265 1175 1050
1105 1035 950 870
1995 1860 1735 1605
1790 1685 1580 1460
1950 1825 1685 1535
1790 1680 1560 1420
1595 1505 1395 1275
1330 1250 1165 1055
1090 1025 930 840
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