Bryant 312A Installation, Start-Up, Operating And Service And Maintenance Instructions page 16

2-stage deluxe induced-combustion 4-way multipoise furnace installation, start--up, operating and service and maintenance instructions series 120/c
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FURNACE
RETURN---AIR
SIZE
INLET
045--- 08 /
Bottom or
024045
Side(s)
045--- 12 /
Bottom or
036045
Side(s)
070--- 081 /
Bottom or
024070
Side(s)
070--- 12 /
Bottom or
036070
Side(s)
070--- 16 /
Bottom or
048070
Side(s)
090--- 14 /
Bottom or
042090
Side(s)
090--- 16 /
Bottom or
048090
Side(s)
Bottom Only
Both Side or 1
090--- 20 /
Side & Bottom
060090
1Side Only
110--- 12 /
Bottom or
036110
Side(s)
110--- 16 /
Bottom or
048110
Side(s)
Table 5 – Air Delivery - - CFM (With Filter)*
SPEED
0.1
0.2
High
1120
1075
Med ---
930
890
High
820
785
Med --- Low
725
690
Low
High
1465
1400
Med ---
1295
1260
High Me-
1150
1120
dium
1030
1010
Med --- Low
860
835
Low
High
1140
1105
Med ---
915
885
High
795
770
Med --- Low
690
665
Low
High
1440
1400
Med ---
1180
1165
High Me-
1015
1020
dium
885
885
Med --- Low
695
700
Low
High
1840
1790
Med ---
1610
1575
High Me-
1460
1430
dium
1260
1240
Med --- Low
1065
1040
Low
High
1650
1600
Med ---
1515
1485
High
1385
1360
Med --- Low
1205
1180
Low
High
2060
2000
Med ---
1710
1695
High
1470
1475
Med --- Low
1260
1365
Low
1030
1025
High
2380
2295
Med ---
2185
2115
High Me-
1905
1865
dium
1595
1565
Med --- Low
1340
1310
Low
High
2485
2415
Med ---
2175
2130
High Me-
1845
1815
dium
1540
1515
Med --- Low
1280
1250
Low
High
2420
2345
Med ---
2160
2110
High Me-
1850
1815
dium
1530
1490
Med --- Low
1290
1250
Low
High
1625
1575
Med ---
1510
1470
High
1360
1335
Med --- Low
1195
1180
Low
High
2055
1990
Med ---
1750
1725
High Me-
1545
1525
dium
1300
1290
Med --- Low
1050
1045
Low
EXTERNAL STATIC PRESSURE (IN. WC)
0.3
0.4
0.5
0.6
1020
960
895
815
850
805
750
680
750
700
650
585
655
605
555
495
1325
1250
1175
1085
1210
1155
1090
1015
1085
1040
985
920
980
945
895
835
810
780
745
700
1055
1010
955
885
855
825
785
725
740
700
655
600
630
590
550
475
1355
1300
1240
1170
1150
1125
1085
1030
1010
990
965
925
880
865
845
815
700
690
670
640
1730
1670
1605
1530
1535
1485
1435
1370
1400
1360
1315
1260
1215
1180
1145
110
1015
985
955
915
1535
1465
1385
1285
1440
1380
1300
1220
1320
1260
1195
1120
1160
1120
1065
1005
1930
1835
1755
1620
1665
1585
1480
1390
1450
1390
1335
1230
1245
1225
1165
1090
1020
990
940
890
2205
2105
2005
1900
2045
1960
1875
1770
1815
1740
1670
1590
1530
1485
1430
1355
1280
1225
1170
1120
2330
2230
2135
2030
2070
2000
1930
1840
1770
1720
1655
1580
1475
1435
1385
1335
1220
1190
115
1105
2265
2165
2070
1960
2045
1960
1885
1790
1765
1710
1635
1560
1455
1420
1375
1320
1220
1190
115
1110
1515
1445
1355
1260
1415
1355
1285
1185
1295
1250
1180
1100
1155
1115
1065
980
1910
1815
1695
1575
1670
1605
1515
1400
1490
1445
1355
1260
1275
1235
1165
1085
1015
975
935
880
16
0.7
0.8
0.9
1.0
720
605
455
340
600
500
345
195
505
400
235
--- ---
405
305
--- ---
--- ---
980
860
725
560
930
830
700
545
835
740
620
510
765
685
570
345
635
555
445
260
815
715
545
390
655
530
420
280
510
420
325
--- ---
415
340
245
--- ---
1090
1000
890
745
970
890
785
645
875
800
700
560
770
700
605
475
600
540
460
345
1450
1370
1275
1170
1305
1230
1145
1055
1205
1130
1055
965
1040
985
915
835
875
825
765
695
1175
1055
895
645
1115
990
830
600
1025
915
710
565
925
810
630
510
1490
1315
1115
910
1245
1110
955
775
1120
1005
855
690
995
880
750
600
810
720
615
500
1775
1650
1510
1335
1655
1535
1400
1240
1490
1390
1245
1110
1275
1160
1055
920
1040
955
850
750
1920
1790
1645
1485
1740
1620
1495
1345
1500
1395
1270
1090
1270
1175
1045
915
1035
945
845
745
1850
1720
1570
1420
1695
1570
1445
1305
1480
1380
1250
1110
1250
1160
1055
905
1040
950
835
740
1165
990
785
595
1070
890
725
530
985
810
670
475
860
740
605
410
1425
1230
1090
910
1255
1120
975
785
1135
1020
880
750
1005
895
750
620
815
715
610
515

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