18-GE04D2-5
9
Installer’s Guide
4TEE3F AIR HANDLERS WITH SINGLE STAGE HEAT PUMP
From Dwg. No. B801077
I. AIRFLOW ADJUSTMENT
▲
CAUTION
!
Disconnect power to the air handler before changing dip
switch positions. Failure to follow this procedure may result
in equipment damage.
Blower speed changes are made on the ICM Fan Con-
trol mounted on the control box. The ICM Fan Control
controls the variable speed motor.
There is a bank of 8 dip switches (See Figure 9). The dip
switches work in pairs to match the airflow for the out-
door unit size (tons), cooling airflow adjustment, Fan
off-delay options, and heating airflow adjustment. The
switches appear as shown in Figure 10.
If the airflow needs to be increased or decreased, see
the Airflow Label on the air handler or the Blower Per-
formance Table in the Service Facts.
Information on changing the speed of the blower motor
for your specific outdoor model size is in the Blower
Performance Table.
Be sure to set the airflow for the correct tonnage.
Refer to blower housing for correct setting.
Switches
1 - 4
Cooling Airflow
Switches
5 - 6
Fan Off Delay Options
Switches
7 - 8
Auxiliary Heat
If the optional humidistat is used, remove R-BK jumper
from the low voltage terminal board (not shown) and in-
