Installation Guide

37
*SD-UPFLOW/HORIZONTALFURNACES
ModelNumber
&
HeatingInput
(Btuh)
Motor
Speed
ExternalStaticPressure(InchesWaterColumn)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
SD038D-24B
Bottom Return
(38,000)
HIGH*
1519 21 1483 22 1433 22 1397 23 1335 24 1272 25 1214 26 1130 27
MED-H
**
1238 28 1216 28 1188 28 1164 29 1136 30 1092 31 1043 32 973 34
MED-L 1094 31 1082 32 1052 32 1034 33 1021 34 977 34 928 36 865 37
LOW 841 40 817 42 801 43 786 45 750 46 720 48 683 49 639 53
SD038D-24B
Side Return
(38,000)
HIGH*
1664 18 1631 21 1596 21 1546 22 1489 23 1433 24 1366 25 1285 26
MED-H 1272 26 1255 27 1249 27 1217 28 1189 29 1145 30 1096 31 1036 33
MED-L
**
1130 29 1114 31 1100 31 1079 31 1048 33 1025 33 987 35 944 36
LOW 869 39 839 42 809 42 790 44 764 45 739 47 711 48 664 52
SD054D-24B
Bottom Return
(54,000)
HIGH*
1519 33 1483 34 1433 35 1397 36 1335 37 1272 39 1214 41 1130 44
MED-H 1238 40 1216 41 1188 42 1164 43 1136 44 1092 46 1043 48 973 51
MED-L
**
1094 46 1082 46 1052 48 1034 48 1021 49 977 51 928 54 865 58
LOW 841 59 817 61 801 62 786 64 750 67 720 69 683 73 639 78
SD054D-24B
Side Return
(54,000)
HIGH*
1664 30 1631 31 1596 31 1546 32 1489 34 1433 35 1366 37 1285 39
MED-H 1272 39 1255 40 1249 40 1217 41 1189 42 1145 44 1096 46 1036 48
MED-L
**
1130 44 1114 45 1100 45 1079 46 1048 48 1025 49 987 51 944 53
LOW 869 58 839 60 809 62 790 63 764 65 739 68 711 70 664 75
SD072D-35C
Bottom Return
(54,000)
HIGH*
1933 34 1857 36 1780 37 1695 39 1599 42 1498 45 1396 48 1280 52
MED-H
**
1872 36 1804 37 1731 39 1639 41 1551 43 1458 46 1353 49 1237 54
MED-L 1320 51 1299 51 1264 53 1233 54 1183 56 1126 59 1059 63 963 69
LOW 1185 56 1170 57 1132 59 1102 60 1067 62 1015 66 947 70 856 78
SD072D-35C
Side Return
(54,000)
HIGH*
1916 35 1848 36 1773 38 1692 39 1613 41 1515 44 1426 47 1316 51
MED-H
**
1815 37 1771 38 1711 39 1641 41 1553 43 1468 45 1373 49 1270 52
MED-L 1259 53 1241 54 1224 54 1192 56 1163 57 1115 60 1056 63 982 68
LOW 1139 59 1120 60 1096 61 1075 62 1047 64 1014 66 959 70 884 75
SCD72D-35C
Side + Bottom
or 2 Sides
(72,000)
HIGH*
1954 34 1890 35 1824 37 1741 38 1656 40 1564 43 1470 45 1352 49
MED-H
**
1869 36 1805 37 1741 38 1685 40 1607 41 1516 44 1419 47 1308 51
MED-L 1287 52 1262 53 1231 54 1197 56 1166 57 1117 60 1061 63 966 69
LOW 1147 58 1115 60 1097 61 1075 62 1047 64 1014 66 959 70 884 75
SD090D-35C
Bottom Return
(90,000)
HIGH*
2288 36 2236 37 2161 39 2092 40 2017 41 1934 43 1841 45 1748 48
MED-H
**
2144 39 2093 40 2049 41 1985 42 1912 44 1842 45 1764 47 1668 50
MED-L 1874 44 1845 45 1806 46 1766 47 1717 49 1661 50 1582 53 1503 55
LOW 1541 54 1516 55 1509 55 1486 56 1456 57 1402 59 1361 61 1294 64
SD090D-35C
Side Return
(90,000)
HIGH*
2273 37 2222 38 2164 39 2098 40 2025 41 1947 43 1864 45 1780 47
MED-H
**
2084 40 2039 41 2007 42 1955 43 1895 44 1832 45 1750 48 1665 50
MED-L 1784 47 1777 47 1749 48 1725 48 1679 50 1629 51 1576 53 1501 56
LOW 1482 56 1470 57 1444 58 1432 58 1405 59 1375 61 1339 62 1286 65
SCD90D-35C
Side + Bottom
or 2 Sides
(90,000)
HIGH*
2328 36 2273 37 2224 37 2151 39 2082 40 2005 42 1920 43 1825 46
MED-H
**
2124 39 2108 40 2052 41 2018 41 1954 43 1884 44 1813 46 1725 48
MED-L 1825 46 1809 46 1781 47 1752 48 1706 49 1676 50 1615 52 1535 54
LOW 1509 55 1488 56 1468 57 1440 58 1422 59 1379 60 1351 62 1292 64
Table8.MaximumAirow&TemperatureRises(°F)-*SDUpow/HorizontalFurnaces