BLOWER PERFORMANCE SPECIFICATIONS
29
Rev. 2
SINGLE STAGE
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.
Note: The models listed in the above airflow table use 10x8 blower assembly instead of 10x6 to achieve a full 4 tons of airflow. Listed below are
the model numbers along with the manufacturing numbers of the five units using the 10x8 blower assembly.
GUIC070DA40
P1226609F
GUIC070DX40
P1226709F
GCIC070DX40
P1226809F
GUID070DA40
P1226909F
GUID070DX40
P1227009F
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
HIGH
4.0
1799
-
1742
-
1694
-
1622
-
1529
-
1444
GUI_070_40
MED-HI
3.5
1720
-
1590
-
1542
-
1483
-
1404
36
1330
(Med-Lo)
MED-LO
2.5
1113
46
1096
47
1078
47
1067
48
1018
50
967
LOW
2
967
53
954
54
941
54
913
56
885
58
826
HIGH
4.0
1882
-
1814
-
1743
-
1676
-
1571
-
1492
GCI_070_40
MED-HI
3.5
1746
-
1668
-
1603
-
1530
-
1432
-
1368
(Low)
MED-LO
2.5
1169
44
1141
45
1136
45
1102
46
1043
49
1006
LOW
2.0
1006
51
993
51
980
52
954
54
921
55
871
CFM & Temperature Rise vs. External Static Pressue
MOTOR
SPEED
