BLOWER PERFORMANCE SPECIFICATIONS
27
Rev. 2
1. Units are shipped without filter(s). CFM in chart is without filter(s).
2. All furnaces shipped as high speed for cooling. Installer should adjust blower speeds as needed.
3. INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE
RATING PLATE.
4. The chart is for information only. For satisfactory operation, external static pressure not to exceed value shown on
rating plate. The shaded area indicates ranges in excess of maximum external static pressure allowed when heating.
5. The above chart is for U.S. furnaces installed at 0-2000 feet. At higher altitudes, a properly derated unit will have
approximately the same temperature rise at a particular CFM, while the ESP at that CFM will be lower.
SINGLE STAGE
MODEL
TONS AC
External Static Pressure, Inches Water Column
(Htg. Speed
@ 0.5"
0.1
0.2
0.3
0.4
0.5
0.6
As Shipped)
ESP
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
CFM
Rise
HIGH
3.0
1460
-
1400
-
1345
-
1280
-
1200
-
1110
-
GUI_045_30
MED-HI
2.5
1200
-
1150
-
1100
-
1050
-
980
35
900
38
(Low)
MED-LO
2.0
935
36
910
37
885
39
845
40
790
43
710
48
LOW
1.5
700
49
685
50
665
51
635
54
575
59
425
-
HIGH
3.0
1555
-
1505
-
1440
35
1365
37
1290
39
1180
43
GUI_070_30
MED-HI
3.0
1325
38
1305
39
1250
41
1200
42
1140
44
1060
48
(Med-Lo)
MED-LO
2.5
1090
47
1080
47
1055
48
1020
50
970
52
905
56
LOW
2.0
760
-
750
-
750
-
735
-
700
-
645
-
HIGH
3.5
1695
-
1625
-
1580
-
1520
-
1450
35
1365
37
GUI_070_40
MED-HI
3.0
1485
-
1450
35
1400
36
1350
38
1295
39
1235
41
(Low)
MED-LO
3.0
1235
41
1200
42
1180
43
1140
44
1115
45
1050
48
LOW
2.5
1095
46
1070
47
1050
48
1025
49
975
52
950
53
HIGH
3.5
1630
42
1560
44
1550
44
1465
47
1380
49
1275
53
GUI_090_30
MED-HI
3.0
1360
50
1325
51
1290
53
1215
56
1155
59
1070
64
(High)
MED-LO
2.0
920
-
920
-
900
-
890
-
850
-
800
-
LOW
1.5
770
-
750
-
740
-
730
-
690
-
660
-
HIGH
5.0
2250
-
2185
-
2120
-
2030
-
1975
-
1885
-
GUI_090_50
MED-HI
4.0
1775
-
1750
-
1735
-
1690
40
1650
41
1600
43
(Med-Lo)
MED-LO
3.5
1320
52
1315
52
1315
52
1315
52
1280
53
1240
55
LOW
3.0
1180
58
1180
58
1175
58
1170
58
1140
60
1120
61
HIGH
4.0
1835
46
1780
48
1730
49
1660
51
1590
53
1530
55
GUI_115_40
MED-HI
3.5
1630
52
1595
53
1540
55
1490
57
1440
59
1375
62
(High)
MED-LO
3.0
1320
64
1305
65
1290
66
1260
67
1200
-
1180
-
LOW
2.5
1140
-
1145
-
1120
-
1100
-
1065
-
1030
-
HIGH
5.0
2330
36
2245
38
2165
39
2065
41
1985
43
1885
45
GUI_115_50
MED-HI
5.0
2120
40
2070
41
2020
42
1940
44
1850
46
1775
48
(Med-Hi)
MED-LO
4.0
1875
45
1840
46
1800
47
1735
49
1685
50
1600
53
LOW
3.0
1290
-
1275
-
1250
-
1235
-
1210
-
1170
-
HIGH
5.0
2455
-
2390
-
2290
-
2200
46
2050
49
1935
52
GUI_140_50
MED-HI
5.0
2050
49
2025
50
1965
52
1890
54
1810
56
1715
59
(High)
MED-LO
4.0
1715
59
1700
60
1660
61
1615
63
1555
65
1470
69
LOW
3.5
1450
70
1435
71
1415
72
1380
73
1340
-
1280
-
CFM & Temperature Rise vs. External Static Pressue
MOTOR
SPEED