POWER BUTTON:
Press and release to turn unit on and off.
NOTE: To "press and release" a button, press and hold for one second and then release.
FAN BUTTON:
Press and hold until the letter "A" appears for automatic fan speed or the numbers "1" (slow) through "6" (fast) appear for
manual fan speed. Fan may be used while a/c is off.
UP & DOWN BUTTONS:
Press and hold either button until desired temperature (set point) is displayed. Press either button momentarily to show current
set point. Range = 608-858F.
COOL LED:
Lights when the compressor is running in cool mode or in automatic mode while cooling.
FAN LED:
Lights when fan is on in manual mode.
HEAT LED:
Lights when the compressor is running in heat mode, in automatic mode while heating or if optional electric heat is installed and
operating.
DISPLAY WINDOW:
Shows current cabin temperature. It can also show outside air temperature if the optional O.A.T. sensor is installed. Also used in
viewing and setting program parameters.
AIR SENSOR:
Cabin temperature is detected by the face plate air sensor, located in the bottom edge of the display. A remote air sensor can be
installed if needed. Installing the remote air sensor will normally override the face plate sensor, but it is possible to utilize both
sensors alternately (see program U 8).
BLANK DISPLAY FOR NIGHTTIME OPERATION:
Press the FAN and DOWN buttons simultaneously to blank the display for nighttime operation. The appropriate LEDs will
remain lit during cooling and heating. When the desired temperature has been achieved, the middle segment of the display
window will remain lit to indicate that the system is on. Press any button to return to normal display mode.
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