Specification

6
BLOWER PERFORMANCE - KG7SD Continued
BLOWER PERFORMANCE - KG7SM
MAXIMUM AIRFLOW & TEMPERATURE RISES (
0
F) FOR
UPFLOW / HORIZONTAL FURNACES (*SD SERIES)
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
SD108D-45D
Bottom Return
(108,000)
HIGH*
2276 44 2228 45 2173 46 2108 47 2035 49 1961 51 1876 53 1778 56
MED-H
**
2113 47 2078 48 2019 50 1970 51 1904 53 1840 54 1768 57 1677 60
MED-L 1819 55 1789 56 1757 57 1706 59 1666 60 1610 62 1551 64 1486 67
LOW 1496 67 1484 67 1459 69 1430 70 1402
— 1363 — 1330 — 1262 —
SD108D-45D
Side Return
(108,000)
HIGH*
2306 43 2247 45 2192 46 2121 47 2044 49 1979 51 1892 53 1787 56
MED-H
**
2135 47 2103 50 2050 51 1995 53 1935 54 1858 57 1778 59 1690 62
MED-L 1845 54 1834 57 1805 58 1776 59 1719 61 1663 63 1605 66 1533 69
LOW 1543 65 1521 69 1502 70 1477
— 1452 — 1412 — 1368 — 1314 —
SD120D-45D
Bottom Return
(120,000)
HIGH*
2276 49 2228 50 2173 51 2108 53 2035 55 1961 57 1876 59 1778 62
MED-H
**
2113 53 2078 53 2019 55 1970 56 1904 58 1840 60 1768 63 1677 66
MED-L 1819 61 1789 62 1757 63 1706 65 1666 67 1610 69 1551
— 1486 —
LOW 1496 — 1484 — 1459 — 1430 — 1402 — 1363 — 1330 — 1262 —
SD120D-45D
Side Return
(120,000)
HIGH*
2306 48 2247 49 2192 51 2121 52 2044 54 1979 56 1892 59 1787 62
MED-H
**
2135 52 2103 53 2050 54 1995 56 1935 57 1858 60 1778 62 1690 66
MED-L 1845 60 1834 61 1805 62 1776 63 1719 65 1663 67 1605 69 1533
—
LOW 1543 — 1521 — 1502 — 1477 — 1452 — 1412 — 1368 — 1314 —
Table 1. Continued
MAXIMUM AIRFLOW & TEMPERATURE RISES (
0
F) FOR
DOWNFLOW FURNACES (*SM SERIES)
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
SM054D-24B
Top Return
(54,000)
HIGH*
1590 31 1563 32 1538 33 1513 33 1477 34 1430 35 1370 36 1312 38
MED-H
1228 41 1207 41 1193 42 1169 43 1157 43 1127 44 1084 46 1037 48
MED-L**
1096 46 1079 46 1061 47 1038 48 1010 50 986 51 957 52 919 54
LOW
855 58 825
—
800
—
777
—
753
—
723
—
696
—
665
—
SM072D-35C
Top Return
(72,000)
HIGH*
2235
—
2176
—
2121
—
2067
—
2010
—
1936
—
1864 36 1783 37
MED-H**
2095
—
2052
—
2005
—
1957
—
1906 35 1852 36 1781 37 1709 39
MED-L
1871 36 1838 36 1797 37 1761 38 1716 39 1667 40 1602 42 1536 43
LOW
1568 43 1552 43 1527 44 1485 45 1457 46 1418 47 1370 49 1343 50
SM090D-35C
Top Return
(90,000)
HIGH*
2208 38 2150 39 2089 40 2026 41 1959 43 1893 44 1825 46 1738 48
MED-H**
2065 40 2015 41 1970 42 1910 44 1866 45 1805 46 1737 48 1668 50
MED-L
1802 46 1773 47 1750 48 1703 49 1670 50 1623 51 1556 54 1490 56
LOW
1490 56 1482 56 1464 57 1436 58 1407 59 1380 60 1329 63 1271
—
SM118D-45D
Top Return
(118,000)
HIGH*
2358 46 2299 48 2253 48 2191 50 2130 51 2060 53 1990 55 1903 57
MED-H**
2176 50 2135 51 2102 52 2046 53 1985 55 1932 57 1862 59 1777 61
MED-L
1873 58 1852 59 1816 60 1790 61 1750 62 1699 64 1643 66 1571 70
LOW
1544
—
1528
—
1514
—
1499
—
1462
—
1441
—
1429
—
1386
—
NOTES:
* Factory Set Cooling Speed
** Factory Set Heating Speed
1. Two openings are recommended for airflows above 1,600 CFM if filter(s) is(are) adjacent to furnace
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Cells shaded in gray indicate a temperature rise outside of the recommended range.
Table 2. *SM Downflow Furnaces