Sears PG8MAA Installation, Start-Up And Service Instructions Manual page 14

Single-stage deluxe induced-combustion 4-way multipoise gas furnace
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Table
4 --Air
Delivery
- CFM
(with Filter)*
FURNACE
RETURN-AIR
SPEED
EXTERNAL
STATIC
PRESSURE
(In. W.C.)
SiZE
INLET
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
045-08/
Bottom
or
High
1035
995
945
895
835
770
675
565
390
195
024048
Side(s)
Med - High
865
830
790
745
690
625
545
440
250
195
Med - Low
760
720
680
635
580
520
445
345
220
195
045-12/
Bottom
or
High
1440
1375
1305
1240
1160
1070
975
870
730
560
036045
Side(s)
Med - High
1360
1300
1240
1175
1115
1040
950
850
725
575
Med - Low
1250
1210
1160
11 O0
1040
965
885
790
670
520
070-08/
Bottom
or
High
1030
1005
965
925
870
810
740
645
465
280
024070
Side(s)
Med-
High
835
815
790
755
710
660
590
480
325
205
Med - Low
725
700
675
635
595
545
460
350
250
- -
070-12/
Bottom
or
High
1425
1375
1320
1265
1200
1125
1035
940
830
655
036070
Side(s)
Med-
High
1320
1280
1240
1205
1140
1075
995
905
790
620
Med - Low
1200
1175
1145
1105
1050
990
920
840
725
555
070-16/
Bottom
or
High
1755
1700
1635
1570
1505
1435
1350
1260
1160
1055
048070
Side(s)
Med-
High
1550
1520
1475
1430
1375
1310
1240
1155
1070
970
Med - Low
1355
1340
1310
1280
1240
1190
1125
1060
975
890
090-14/
Bottom
or
High
1605
1570
1535
1465
1385
1285
1175
1055
895
645
042090
Side(s)
Med - High
1470
1445
1410
1380
1300
1220
1115
990
830
600
Med-
Low
1310
1295
1265
1230
1195
1120
1025
915
710
565
090-16/
Bottom
or
High
1940
1880
1805
1720
1635
1540
1425
1290
1090
830
048090
Side(s)
Med - High
1740
1700
1650
1590
1525
1440
1335
1195
1010
820
Med - Low
1505
1505
1480
1440
1375
1300
1190
1045
890
740
High
2405
2310
2220
2130
2025
1920
1790
1660
1530
1350
Bottom
Only
Med - High
2170
2110
2040
1970
1895
1785
1675
1565
1420
1260
Med - Low
1920
1875
1835
1780
1715
1630
1535
1420
1275
1135
090-20/
Both Sides
or 1
High
2530
2450
2365
2270
2165
2065
1940
1805
1670
1505
060090
Side & Bottom
Med - High
2230
2170
2110
2050
1985
1890
1780
1660
1525
1360
Med - Low
1895
1890
1845
1815
1755
1685
1600
1480
1350
1180
High
2475
2395
2300
2200
2090
1985
1865
1730
1585
1425
1 Side Only
Med - High
2105
2145
2070
2010
1940
1845
1735
1620
1475
1325
Med - Low
1850
1860
1810
1770
1715
1650
1555
1445
1310
1150
110-12/
Bottom
or
High
1600
1550
1490
1425
1355
1260
1135
990
785
530
036110
Side(s)
Med-
High
1475
1435
1395
1335
1285
1185
1070
890
725
450
Med - Low
1315
1295
1265
1220
1155
1080
985
810
675
440
110-16/
Bottom
or
High
1980
1915
1835
1750
1655
1495
1365
1185
965
700
048110
Side(s)
Med-High
1745
1710
1650
1560
1450
1340
1205
1090
865
605
Med-
Low
1530
1515
1470
1400
1310
1215
1095
990
830
670
High
2485
2415
2340
2255
2160
2080
1950
1840
1720
1565
Bottom
Only
Med-
High
2135
2100
2060
2000
1930
1860
1765
1670
1555
1425
Med - Low
1855
1840
1815
1775
1725
1675
1600
1510
1405
1290
Bottom
Sides
High
....
2355
2285
2190
2090
1965
1850
1705
1535
110-22/
066110
or 1 Side & Bot-
Med-High
2140
2100
2050
1990
1935
1865
1760
1670
1545
1410
tom
Med - Low
1855
1840
1815
1775
1725
1675
1600
1510
1405
1290
High
2495
2440
2370
2290
2205
2120
2015
1910
1775
1625
1 Side Only
Med - High
2030
2025
2000
1950
1905
1850
1750
1660
1555
1425
Med - Low
- -
1735
1725
1695
1650
1595
1535
1455
1335
1230
A filter is required for each return-air
inlet. Airflow performance
included
3/4-in.
(19 mm) washable
filter media such 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.
14

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