Filter
Top Products
15
Table 5⎯ Air Delivery -- CFM (with Filter)* (Continued)
FURNACE
SIZE
RETURN---AIR
INLET
SPEED
EXTERNAL STATIC PRESSURE (In. W.C.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
135---16/
048135
Bottom or
Side(s)
High
Med --- Hig h
Med --- L ow
2065
1790
1480
2000
1755
1480
1930
1705
1480
1835
1640
1450
1710
1550
1380
1590
1465
1295
1420
1295
1160
1235
1145
1005
1025
945
855
835
775
670
135---22/
066135
Bottom Only
High
Med --- Hig h
Med --- L ow
2445
2130
1860
2365
2080
1830
2280
2025
1800
2190
1960
1755
2085
1880
1705
1980
1795
1630
1850
1690
1530
1705
1550
1415
1520
1405
1280
1355
1255
1140
Bottom, Sides
or 1 Side & Bot-
tom
High
Med --- Hig h
Med --- L ow
--- ---
2120
1860
--- ---
2075
1830
2355
1995
1800
2280
1970
1755
2160
1905
1725
2065
1835
1630
1930
1735
1530
1805
1645
1415
1655
1515
1280
1465
1325
1140
1SideOnly
High
Med --- Hig h
Med --- L ow
--- ---
2070
1860
--- ---
2015
1830
2215
1970
1800
2130
1935
1755
2030
1855
1725
1920
1765
1630
1795
1655
1530
1675
1550
1415
1540
1445
1280
1385
1265
1140
155---20/
060155
Bottom Only
High
Med --- Hig h
Med --- L ow
2465
2115
1800
2430
2095
1790
2375
2055
1770
2305
2005
1735
2215
1940
1695
2110
1845
1640
2000
1820
1570
1865
1675
1465
1715
1525
1345
1530
1390
1225
Both Sides Or 1
Side & Bottom
High
Med --- Hig h
Med --- L ow
--- ---
2155
1800
--- ---
2125
1790
2375
2075
1770
2285
2015
1735
2185
1935
1695
2105
1830
1640
1995
1780
1570
1870
1635
1465
1720
1485
1345
1555
1365
1225
1Side Only
High
Med --- Hig h
Med --- L ow
--- ---
2140
1800
--- ---
2085
1790
2260
2020
1770
2180
1950
1735
2070
1850
1695
1975
1745
1640
1865
1695
1570
1740
1545
1465
1595
1415
1345
1440
1290
1225
* A filter is required for each return---air inlet. A irflow performance i ncluded 3 /4---in. (19 mm) washable filter media s uch as contained in factory--- authorized ac-
cessory filter rack. To determine airflow performance without this filter, assume an additional 0.1 In. W.C. available external static pressure.
------ Indicates unstable operating conditions.
UPFLOW DOWNFLOW HORIZONTAL
YES
NO
NO
YES
YES
YES
NO
120°
MIN
YES
120°
MIN
YES
120°
MIN
90°
90°
A02020
Fig. 14 --- Duct Flanges
310AAV