58SC0B/58SC1B: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
27
NOTE:
1.A filter is required for each return-air inlet. Airflow performance included 3/4-in. (19 mm) washable filter media such as contained in a factory - authorized accessory filter rack. See
accessory list. To determine airflow performance without this filter, assume an additional 0.1 in. w.c. available external static pressure.
2.Adjust the blower airflow setting as necessary for the proper air temperature rise for each installation.
3.Airflows over 1800 CFM require bottom return, two-side return, or bottom and side return. A minimum filter size of 20” x 25” (508 x 635 mm) is required.
4.For upflow applications, air entering from one side into both the side of the furnace and a return air base counts as a side and bottom return
5..The -- entry indicates unstable operating conditions
110M21--20
1 Constant Fan 845 730 625 520 420 330 240 135 -- --
2 920 810 705 610 515 425 345 260 155 --
3 1025 920 825 735 645 560 475 400 320 245
4 1115 1015 930 840 760 675 595 520 445 380
5 1235 1150 1060 980 900 825 750 675 600 525
6 1340 1260 1180 1100 1025 955 885 810 740 675
7 1440 1365 1290 1215 1140 1070 1005 940 875 805
8 1530 1460 1390 1320 1250 1185 1115 1055 995 930
9 1640 1575 1510 1440 1375 1310 1250 1190 1130 1075
10 1745 1685 1620 1555 1495 1430 1370 1315 1260 1205
11 1835 1780 1720 1665 1605 1550 1490 1435 1380 1330
12 Heating 1895 1840 1785 1730 1675 1615 1560 1505 1455 1400
13 1950 1895 1840 1785 1725 1670 1615 1565 1510 1460
14 2055 2005 1955 1900 1845 1790 1740 1690 1640 1590
15 2160 2110 2065 2015 1960 1910 1860 1815 1765 1720
16 Cooling 2260 2210 2165 2120 2070 2020 1975 1930 1885 1840
17 2355 2310 2265 2225 2180 2135 2090 2045 2005 1960
18 2520 2480 2435 2395 2350 2310 2255 2195 2135 2080
110M24--20
1 Constant Fan 840 725 615 505 400 310 215 135 -- --
2 930 825 720 620 520 420 335 250 165 --
3 1015 915 815 725 630 530 440 360 280 205
4 1095 995 905 815 725 635 540 460 385 310
5 1185 1090 1005 915 835 750 665 580 500 430
6 1250 1160 1080 1000 915 840 755 675 595 525
7 1335 1255 1175 1100 1020 940 870 790 710 635
8 1435 1355 1280 1210 1140 1060 990 920 845 780
9 1510 1435 1360 1290 1225 1155 1085 1015 950 880
10 1600 1530 1455 1390 1325 1260 1190 1125 1060 995
11 1685 1615 1545 1480 1420 1360 1295 1230 1165 1110
12 1760 1695 1630 1565 1505 1450 1390 1330 1270 1210
13 1855 1795 1730 1670 1610 1560 1505 1445 1385 1330
14 1945 1885 1830 1770 1710 1655 1605 1555 1495 1445
15 Heating 2025 1970 1915 1855 1800 1750 1700 1650 1600 1550
16 2055 2000 1945 1890 1835 1785 1735 1685 1635 1585
17 2125 2070 2015 1965 1910 1860 1815 1765 1720 1670
18 Cooling 2220 2170 2115 2060 2005 1960 1905 1860 1810 1750
135M24--20
1 Constant Fan 760 635 520 405 290 175 -- -- -- --
2 815 700 590 485 370 270 155 -- -- --
3 905 795 685 590 490 380 290 185 -- --
4 975 870 770 680 590 490 395 310 205 --
5 1025 920 825 740 655 560 460 375 290 195
6 1120 1025 935 845 770 690 600 505 420 350
7 1205 1120 1030 945 870 800 720 635 550 470
8 1285 1200 1120 1040 965 900 830 750 675 590
9 1380 1305 1225 1150 1075 1010 950 885 815 735
10 1450 1380 1305 1230 1160 1095 1030 975 910 840
11 1555 1480 1415 1345 1275 1210 1150 1095 1045 985
12 1635 1565 1500 1435 1370 1310 1245 1190 1140 1090
13 1710 1645 1585 1525 1460 1400 1340 1285 1230 1185
14 1785 1725 1665 1600 1545 1485 1425 1375 1320 1275
15 Heating 1870 1805 1750 1695 1640 1580 1525 1475 1420 1375
16 1940 1885 1830 1780 1725 1675 1620 1570 1520 1475
17 2020 1965 1915 1865 1815 1765 1715 1665 1620 1580
18 Cooling 2125 2075 2025 1975 1925 1875 1825 1775 1705 1640
Table 9 – Air Delivery - CFM (with filter)* (Continued)
Unit Size
Airflow Setting Default Setting
External Static Pressure (in. w.c.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
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