—6—
AIR DELIVERY—CFM (With Filters)*
* A filter is required for each return-air supply. Airflow shown is with factory supplied 1-in. washable filter(s). An airflow reduction of up to 7% may occur when
using the factory specified 4-5/16-inch wide, high-efficiency media filter. For best furnace efficiency when using the 4-5/16-inch wide media filter, adjust the
blower speed tap to near the mid-point of the rise range.
— Indicates unstable operating conditions.
UNIT
SIZE
RETURN-AIR
SUPPLY SPEED
EXTERNAL STATIC PRESSURE (IN. WC)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
024045
Bottom
or
1 Side
High 1030 1005 970 925 880 815 745 615
Med-High 855 830 800 765 720 670 595 485
Med-Low 755 725 695 650 605 555 475 400
036045
Bottom
or
1 Side
High 1490 1430 1385 1325 1250 1175 1085 975
Med-High 1335 1305 1270 1230 1160 1090 1005 915
Med-Low 1140 1130 1105 1075 1030 975 900 830
Low 980 975 965 915 875 840 785 715
024070
Bottom
or
1 Side
High 1040 1010 975 935 880 810 735 640
Med-High 855 830 800 765 715 660 600 490
Med-Low 745 715 690 650 605 550 475 385
036070
Bottom
or
1 Side
High 1430 1380 1325 1265 1195 1125 1045 945
Med-High 1310 1275 1235 1190 1135 1065 990 900
Med-Low 1140 1130 1100 1065 1000 965 910 815
Low 990 965 960 935 905 855 800 710
042091
Bottom
or
1 Side
High 1570 1535 1480 1415 1360 1280 1185 1070
Med-High 1370 1355 1330 1290 1240 1170 1080 955
Med-Low 1170 1165 1150 1115 1085 1035 970 880
Low 1010 1005 990 965 950 905 845 745
048091
Bottom
or
1 Side
High 2010 1950 1875 1810 1740 1660 1550 1455
Med-High 1675 1660 1625 1600 1545 1490 1395 1295
Med-Low 1445 1430 1415 1400 1370 1325 1265 1170
Low 1260 1260 1260 1250 1210 1180 1115 1030
036111
Bottom
or
1 Side
High 1470 1415 1340 1270 1205 1115 985 845
Med-High 1340 1305 1245 1185 1130 1045 915 780
Med-Low 1185 1175 1140 1075 1030 950 835 705
Low 1015 1010 980 955 910 840 725 600
048111
Bottom
or
1 Side
High 1880 1815 1745 1690 1575 1500 1400 1265
Med-High 1660 1615 1570 1505 1435 1355 1260 1170
Med-Low 1455 1410 1375 1350 1290 1235 1145 985
Low 1265 1265 1240 1210 1180 1110 995 855
060111
Bottom
Only
High — 2465 2385 2305 2225 2125 2020 1910
Med-High 2125 2120 2075 2040 1985 1900 1825 1715
Med-Low 1745 1750 1740 1720 1685 1635 1565 1500
Low 1545 1545 1545 1520 1495 1450 1390 1330
Both Sides or
1 Side & Bottom
High 2475 2465 2425 2365 2305 2230 2145 2015
Med-High 2100 2080 2075 2055 2015 1940 1865 1765
1 Side Only
High 2415 2340 2250 2170 2070 2000 1890 1780
Med-High 2080 2050 2010 1955 1885 1805 1745 1645
048135
Bottom
or
1 Side
High 1900 1845 1780 1705 1620 1530 1445 1320
Med-High 1695 1645 1580 1520 1460 1385 1280 1155
Med-Low 1460 1415 1375 1340 1290 1205 1110 —
Low 1275 1260 1245 1230 1180 1135 ——
060135
Bottom
Only
High — 2260 2185 2085 2025 1935 1835 1730
Med-High 2110 2070 2015 1960 1885 1810 1715 1620
Med-Low 1790 1775 1755 1720 1670 1610 1535 1455
Low 1495 1500 1515 1485 1450 1400 1345 1270
Both Sides or
1 Side & Bottom
High 2425 2360 2275 2195 2095 2010 1890 1775
Med-High 2055 2035 1995 1945 1880 1810 1735 1640
1 Side Only
High 2245 2175 2070 1980 1900 1805 1695 1575
Med-High 2050 1985 1925 1850 1765 1690 1585 1480
060155
Bottom
Only
High — 2300 2235 2155 2055 1980 1870 1775
Med-High — 2050 2005 1945 1880 1805 1720 1640
Med-Low 1790 1770 1740 1710 1635 1580 1520 1440
Low 1520 1525 1505 1485 1450 1410 1350 1290
Both Sides or
1 Side & Bottom
High 2405 2385 2310 2220 2140 2045 1945 1825
Med-High 2090 2090 2040 1990 1925 1850 1765 1660
1 Side Only
High 2325 2260 2175 2085 2000 1900 1805 1705
Med-High 2085 2045 1985 1920 1855 1765 1680 1570