Rheem GF951U Series Installation Instructions Manual page 49

Upflow & downflow/horizontal high efficiency condensing gas furnaces
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TABLE 10
90 PLUS AIR FLOW PERFORMANCE – GF951U & GF951D MODELS
Motor HP [W]
Model
Blower Size
IN [MM]
1/2 [373]
GF951U045AS36
11 x 7
[279 x 178]
1/2 [373]
GF951U060AS36
11 x 7
[279 x 178]
1/2 [373]
GF951U075AS36
11 x 7
[279 x 178]
1/2 [373]
GF951U075AS48
11 x 10
[279 x 254]
3/4 [559]
GF951U090AS60
12 x 11
[305 x 279]
3/4 [559]
GF951U105AS60
12 x 11
[305 x 279]
1/2 [373]
GF951D045AS36
11 x 7
[279 x 178]
1/2 [373]
GF951D060AS36
11 x 7
[279 x 178]
1/2 [373]
GF951D075AS48
11 x 10
[279 x 254]
3/4 [559]
GF951D090AS60
12 x 11
[305 x 279]
3/4 [559]
GF951D105AS60
11 x 10
[279 x 254]
NOTE: CFM values represent furnace-only airflow ratings.
0.1
0.2
Spd Tap
Low
805
780
Med. Lo
920
885
Med. Hi
1140
1110
High
1360
1320
Low
770
740
Med. Lo
880
845
Med. Hi
1060
1025
High
1260
1215
Low
780
745
Med. Lo
880
850
Med. Hi
1090
1050
High
1300
1255
Low
1115
1091
Med. Lo
1326
1315
Med. Hi
1535
1512
High
1765
1723
Low
1199
1183
Med. Lo
1442
1416
Med. Hi
1666
1637
High
2040
1993
Low
1230
1205
Med. Lo
1490
1445
Med. Hi
1710
1665
High
2010
1955
Low
794
765
Med. Lo
890
866
Med. Hi
1110
1084
High
1383
1350
Low
816
792
Med. Lo
924
895
Med. Hi
1164
1122
High
1409
1367
Low
1126
1097
Med. Lo
1338
1309
Med. Hi
1555
1516
High
1743
1696
Low
1213
1196
Med. Lo
1504
1474
Med. Hi
1734
1698
High
2111
2059
Low
1324
1309
Med. Lo
1617
1595
Med. Hi
1842
1812
High
2204
2153
CFM Air Delivery
External Static Pressure, Water Column
0.3
0.4
760
720
850
810
1085
1045
1280
1235
710
675
815
790
990
960
1175
1135
710
675
825
785
1010
970
1210
1160
1067
1044
1304
1270
1488
1453
1681
1639
1167
1132
1390
1360
1606
1554
1946
1888
1160
1155
1405
1375
1620
1570
1900
1855
735
704
842
811
1057
1023
1317
1274
767
739
866
832
1080
1044
1325
1284
1068
1036
1280
1253
1477
1440
1649
1604
1179
1158
1443
1415
1662
1621
2007
1946
1294
1272
1573
1533
1781
1728
2102
2040
0.5
0.6
0.7
685
645
605
775
730
690
1010
950
890
1195
1140
1080
645
605
570
760
715
670
925
880
835
1100
1040
985
640
595
555
750
702
655
925
875
825
1110
1055
1005
1020
984
948
1236
1197
1157
1418
1373
1327
1596
1544
1492
1097
1062
1026
1329
1288
1247
1501
1456
1407
1829
1758
1686
1130
1090
1050
1350
1295
1240
1540
1475
1410
1810
1710
1610
672
633
594
779
750
721
989
946
902
1230
1171
1112
711
686
661
798
754
710
1008
966
923
1242
1195
1148
1003
963
923
1225
1185
1145
1402
1349
1295
1559
1501
1442
1136
1108
1079
1387
1348
1308
1579
1526
1472
1885
1821
1756
1250
1221
1191
1493
1448
1402
1674
1619
1564
1977
1905
1833
49

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