47
1.
CFM in chart is without filters(s). Filters do not ship with this furnace, but must be provided by the installer. If the furnace requires two return filters, this chart assumes
both filters are installed.
2.
All furnaces ship as high speed cooling and medium-speed heating. Installer must adjust blower cooling & heating speed as needed.
3.
For most jobs, about 400 CFM per ton when cooling is desirable.
4.
INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
5.
The chart is for information only. For satisfactory operation, external static pressure must not exceed value shown on rating plate. The shaded area indicates ranges
in excess of maximum external static pressure allowed when heating. The data for 0.6" w.c. to 0.8" w.c. is shown fo air conditioning purposes only.
6.
At higher altitudes, a properly de-rated unit will have approximately the same temperature rise at a particular CFM, while the ESP at that CFM will be lower.
GCH95 / GCH9115
BLOWER PERFORMANCE DATA
Tons AC
at 0.5"
0.6
0.7
0.8
ESP
CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
HIGH
3.0
1415
28
1352
30
1290
31
1196
34
1127
36
1035 936
825
GCH950453BX*
MED 2.5
1221
33
1178
34
1127
36
1073
38
1007
40
932
834
733
(MED-HI)
MED-LO
2.0
1034
39
1000
40
976
41
935
43
881
46
818
733
662
LOW
1.5
860
47
845
48
812
50
783
51
740
54
682
619
534
HIGH
3.0
1431
42
1368
44
1296
47
1228
49
1150
53
1055 962
860
GCH950703BX*
MED
2.5
1212
50
1182
51
1138
53
1091
55
1019
59
944
871
769
(MED-HI)
MED-LO
2.0
1002
60
978
62
956
63
921
66
878
69
825
738
647
LOW
1.5
813
74
805
75
790
76
759
80
726
83
689
644
605
HIGH
4.0
1755
34
1674
36
1632
37
1510
40
1423
42
1325 1241 1116
GCH950704CX*
MED
3.5
1656
36
1585
38
1536
39
1429
42
1355
45
1268 1145 1059
(MED-HI)
MED-LO
3.0
1551
39
1488
41
1427
42
1353
45
1290
47
1195 1100 1017
LOW
2.5
1286
47
1258
48
1241
49
1185
51
1112
54
1067 983
886
HIGH
4.0
1734
46
1652
49
1578
51
1508
53
1413
57
1336 1248 1154
GCH960904CX*
MED 3.5
1642
49
1558
52
1487
54
1418
57
1336
60
1243 1164 1039
(MED-HI)
MED-LO
3.0
1522
53
1458
55
1396
58
1321
61
1253
64
1182 1101 986
LOW
2.5
1287
63
1244
65
1184
68
1148
70
1098
73
1034 953
849
HIGH
5.0
2189
37
2109
38
2025
40
1948
41
1862
43
1757 1644 1537
GCH950905DX*
MED 4.0
1885
43
1831
44
1776
45
1711
47
1637
49
1539 1453 1346
(MED-HI)
MED-LO
3.5
1665
48
1627
50
1584
51
1524
53
1462
55
1400 1323 1220
LOW
3.0
1474
55
1440
56
1401
57
1356
59
1310
61
1255 1193 1109
HIGH
5.0
2134
46
2103
47
2029
48
1941
51
1906
51
1818 1733 1625
GCH91 155DX*
MED 4.0
1678
58
1643
60
1643
60
1577
62
1527
64
1489 1423 1339
(MED-HI)
MED-LO
3.5
1453
68
1440
68
1426
69
1363
72
1349
73
1314 1253 1205
LOW
3.0
1259
78
1239
79
1220
80
1181
83
1159
85
1118 1082 1015
BLOWER PERFORMANCE
(CFM & Temperature Rise vs. External Static Pressure)
Model
Heating Speed
As Shipped
Motor
Speed
EXTERNAL STATIC PRESSURE (Inches Water Column)
0.1
0.2
0.3
0.4
0.5
