BLOWER PERFORMANCE SPECIFICATIONS
12
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 for
air conditioning purposes only.
6.
The above chart is for U.S. furnaces installed at 0-2000 feet. 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.
*MH95*****XA*
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
1352
29
1318
30
1260
31
1202
33
1128
35
1044
955
853
*MH950453BXA*
MED 2.5
1214
32
1172
34
1123
35
1064
37
1012
39
938
859
741
(MED-HI)
MED-LO
2.0
997
40
994
40
960
41
923
43
884
45
817
741
611
LOW
1.5
757
52
753
52
734
54
704
56
674
59
620
524
438
HIGH
3.0
1449
41
1409
42
1326
45
1273
47
1201
49
1194
1136
1018
*MH950703BXA*
MED
2.5
1192
50
1172
51
1141
52
1094
54
1046
57
973
904
793
(MED-HI)
MED-LO
2.0
981
61
962
62
943
63
917
65
888
67
830
764
665
LOW
1.5
750
79
730
81
714
83
692
86
657
90
620
570
502
HIGH
4.0
2069
29
1965
30
1871
32
1756
34
1661
36
1549
1415
1275
*MH950704CXA*
MED
3.5
1752
34
1724
34
1667
36
1603
37
1488
40
1402
1290
1082
(MED-HI)
MED-LO
3.0
1437
41
1437
41
1417
42
1369
43
1320
45
1256
1140
984
LOW
2.5
1184
50
1177
50
1161
51
1132
52
1095
54
1047
928
837
HIGH
4.0
1970
40
1874
42
1757
45
1667
48
1566
51
1431
1334
1182
*MH950904CXA*
MED 3.5
1713
46
1650
48
1572
50
1510
52
1418
56
1313
1211
1079
(MED-HI)
MED-LO
3.0
1439
55
1412
56
1370
58
1327
60
1260
63
1166
1078
956
LOW
2.5
1183
67
1155
69
1122
74
1108
72
1062
75
1011
931
816
HIGH
5.0
2058
39
1997
40
1928
42
1852
43
1777
45
1682
1600
1487
*MH950905CXA*
MED 4.0
1718
47
1685
48
1632
49
1586
51
1520
53
1458
1369
1281
(MED-HI)
MED-LO
3.5
1502
54
1464
55
1429
56
1380
58
1319
61
1272
1200
1137
LOW
3.0
1305
62
1277
63
1253
64
1212
66
1175
69
1127
1081
1010
HIGH
5.0
2147
37
2114
37
2057
39
2030
39
1978
40
1889
1784
1713
*MH950905DXA*
MED 4.0
1675
47
1686
47
1640
48
1623
49
1557
51
1501
1455
1360
(MED-HI)
MED-LO
3.5
1489
53
1470
54
1436
55
1409
56
1361
58
1318
1243
1130
LOW
3.0
1307
61
1265
63
1234
64
1203
66
1168
68
1096
1053
991
HIGH
5.0
2134
46
2103
47
2029
48
1941
51
1906
51
1818
1733
1625
*MH951155DXA*
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
0.1
0.2
0.3
0.4
0.5
(CFM & Temperature Rise vs. External Static Pressure)
Model
Heating Speed
As Shipped
Motor
Speed
EXTERNAL STATIC PRESSURE (Inches Water Column)
