iA/C T-Series Installation, Operating & Maintenance Manual
AC-10 iAC 10K 12K Manual Rev D
Page 9 of 18
Check for the following:
Airflow through both condenser and evaporator
Abnormal vibration
Temperature of cabinet supply air should be less than 70
o
F (21
o
C) when the
ambient air is 80
o
F (27
o
C) or below.
Replace the cover after completion.
5
USACG-6 INTELLIGENT CONTROLLER OPERATION
The intelligent controller installed in the air conditioner has two levels of operation. Limited functionality
from the integrated four position LED display allows the user to debug the system, change heating set point,
change cooling set point, and change unit of measure (ºF or ºC). More settings are available to customize a
unit for an application by accessing the controller via the RS-232 serial port connected to a PC with
HyperTerminal. Access the controller by removing upper front cover of the unit.
Adjusting the factory controller settings may alter performance and affect warranty.
5.1
USACG-6 Controller diagram
5.2
Modify heating set point
1.
Press L button for 2 seconds and release (Display will begin “Display Mode”)
2.
Press L&R button simultaneously for 2 seconds and release (Display will show “test”)
3.
Press R button for 2 seconds and release (Display will show “H SP”)
4.
Press L button for 2 seconds and release (Display will show current Heater Set Point)
a.
Press and hold R button to raise setting (Maximum is 59
o
F/15°C)
b.
Press and hold L button to lower setting (Minimum is 41
o
F/5°C)
5.
Do nothing for 10 seconds to accept new setting OR Press L&R button simultaneously for 2 seconds
to accept new setting (Display will show main menu again)
