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7
CONTROL PANEL OPERATION
The control panel keypad will look like the following Figure 1.
Figure 1
Power
Press the POWER button to turn the unit on or o󰀨.
Mode
Push this button to cycle through the modes from COOL-
HEAT-FAN-COOL. The indicator light beside the “MODE”
option will illuminate, identifying the mode selected.
COOL: Cooling begins automatically when the room tem-
perature is above the set point and stops when the room
temperature is 2°C(4°F) below the set point. But the com-
pressor will run 5 minutes at least in COOL mode before
stopping.
HEAT: The maximum temperature can be set up to 29°C /
84°F. For heat pump models, the unit can alternate to run
between in reverse cycle heat mode and electric heater
mode according to the di󰀨erence between the setting tem-
perature and the room temperature. The fan motor cycles
with the compressor stop.
NOTE: The reverse cycle and electric heater can-
not be run at the same time. In following cases, it
is normal that the reverse cycle does not operate.
1. When the outdoor temperature is lower than 4°C /
40°F or the room temperature falls to 4.5°C / 8°F
below the set point temperature.
2. There is a 3-minute minimum compressor run time at
any setting to prevent short cycling. The indoor fan
motors starts before the compressor and stops after
the compressor cycles o󰀨.
3. Push the S1 on the DIP SWITCHES to UP (ON)
position.
4. When frost builds up to the evaporator coils, the unit
will defrost automatically and the compressor will
cycle o󰀨.
FAN: Fan operation only without heating and cooling.
NOTE: If the unit has DIP SWITCHES feature, the
temperature range can be set. See DIP SWITCHES
CONFIGURATIONS on page 8 for details.
Up / Down Buttons (+ / –)
Push the UP (or DOWN) button to increase (or decrease)
the set temperature of the unit in cooling or heating mode.
The temperature can be set by increments of 1°C (1°F).
The setting temperature appears in the display.
NOTE: Press and hold “+” and “–” buttons togeth-
er for 3 seconds will alternate the temperature
display between “°C” & “°F” scale.
Fan (Fan Speed)
Every time you push this button, the fan speed cycles
through the settings as follows: HIGH-MED-LOW- HIGH.
Constant Fan
In cooling mode, press the button to turn on or o󰀨 the
constant fan function. When the function is turned on, the
constant fan light will illuminate, identifying the fan contin-
uous run for cooling. When the function is turned o󰀨, the
constant fan light will go out, identifying the fan cycle run
with compressor stop.
NOTE: Every time the unit is turned on, the func-
tion will work as the DIP SWITCHES CONFIGURA-
TIONS.
Displays:
Shows the set temperature in °C or °F. While on Fan only
mode, it shows the room temperature.