Carrier 58ST Installation, Start-Up, Operating And Service And Maintenance Instructions page 16

FURNACE RETURN---AIR
SIZE INLET
048135 Bottom or Side(s)
Bottom Only
Bottom, Sides or
066135
1 Side & Bottom
1 Side Only
Bottom Only
Both Sides Or 1
060155
Side & Bottom
1Side Only
* A filter is required for each return ---air inlet. Airflow performance included 1 ---in. washable filter media such as contained in factory ---authorized accessory filter
rack. To determine airflow performance without this filter, assume an additional 0.1 in. wc available external static pressure.
--- --- Indicates unstable operating conditions.
UPFLOW
90˚
120˚
MIN
TABLE 5⎯ AIR DELIVERY - - CFM (WITH FILTER)* (CONTINUED)
SPEED
0.1 0.2
High
2090 2010
Med ---
1790 1755
High
1545 1525
Med --- Low
High
2485 2400
Med ---
2195 2150
High
1880 1850
Med --- Low
High
--- --- --- ---
Med ---
"2180 2145
High
1880 1850
Med --- Low
High
--- --- --- ---
Med ---
2135 2085
High
1880 1850
Med --- Low
High
2465 2430
Med ---
2115 2105
High
1800 1790
Med --- Low
High
--- --- --- ---
Med ---
2155 2135
High
1800 1790
Med --- Low
High
--- --- --- ---
Med ---
2140 2095
High
1800 1790
Med --- Low
D OWNFLOW
YES
YES
120˚
MIN
NOT
RECOMMENDED
Fig. 14 --- Duct Flanges
EXTERNAL STATIC PRESSURE (IN. WC)
0.3 0.4 0.5 0.6
1930 1835 1710 1590
1705 1640 1550 1465
1500 1450 1380 1315
2310 2215 2110 2000
2090 2000 1920 1825
1820 1780 1715 1635
2385 2305 2195 2085
2060 2010 1945 1865
1820 1780 1715 1635
2245 2155 2055 1940
2035 1975 1895 1795
1820 1780 1715 1635
2375 2305 2230 2110
2075 2030 1980 1910
1770 1735 1695 1640
2375 2285 2200 2105
2095 2040 1975 1895
1770 1735 1695 1640
2260 2180 2085 1975
2040 1975 1890 1810
1770 1735 1695 1640
HORIZONTAL
90˚
YES
YES
120˚
MIN
NOT
RECOMMENDED
16
0.7 0.8 0.9 1.0
1470 1335 1025 835
1360 1210 945 785
1215 1005 855 670
1880 1725 1535 1355
1720 1565 1405 1255
1540 1415 1290 1160
1960 1825 1670 1465
1765 1660 1515 1325
1540 1415 1290 1160
1825 1695 1555 1385
1685 1565 1445 1265
1540 1415 1290 1160
2000 1865 1725 1545
1830 1725 1590 1425
1570 1465 1345 1225
1995 1870 1730 1570
1790 1685 1550 1400
1570 1465 1345 1225
1865 1740 1605 1455
1705 1595 1480 1325
1570 1465 1345 1225
YES
YES
NOT
RECOMMENDED
A02329