Technical information
BLOWER PERFORMANCE SPECIFICATIONS
15 Rev. 1
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 three units using the 10x8 blower assembly.
GUIC070DA40 P1226609F
GUIC070DX40 P1226709F
GCIC070DX40 P1226809F
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. Installer must adjust blower cooling 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.
6 The dashed (---) areas indicate a temperature rise not recommended for this model.
7. 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.
TONS AC
@ 0.5"
0.6
ESP CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM
HIGH 4.0 1799 --- 1742 --- 1694 --- 1622 --- 1529 --- 1444
GUIC070**40 MED 3.5 1730 --- 1590 --- 1542 --- 1483 --- 1404 36 1330
(Med-Lo) MED-LO 2.5 1113 46 1096 47 1078 47 1067 48 1018 50 967
LOW 2.0 967 53 954 54 941 54 913 56 885 58 826
HIGH 4.0 1882 --- 1814 --- 1743 --- 1676 --- 1571 --- 1492
GCIC070**40 MED 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 Pressure)
GUIC/GCIC070**40 Blower Performance
0.4 0.5
Model
Heating Speed
As Shipped
MOTOR
SPEED
0.1 0.2 0.3
External Static Pressure (Inches Water Column)
(
)