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3-1-4. TEMPERATURE CONTROL AT UPPER, MIDDLE AND LOWER COMPARTMENT
(1) Temperature control at upper compartment
1. Turn COMP, upper compartment fan motor depending on temperature of the upper compartment sensor and cool them
by opening the 3-way valve to the upper compartment.
2. However, cooling of the upper compartment starts after cooling of the Middle/lower compartment is completed while the
middle/lower compartment is cooling (Max 25 min).
(2) Temperature control at middle/lower compartment
1.Turn COMP, middle compartment fan motor depending on temperature of the middle/lower compartment sensor and cool
them by opening the 3-way valve to the middle/lower compartment ,and opening the middle/lower damper.
2. However, cooling of the middle/lower compartment starts after cooling of the upper compartment is completed while the
upper compartment is cooling (Max 35 min).
(3) Operation conditions of COMP
1. COMP turns on by the upper compartment sensor and lower compartment sensor.
2. COMP turns off by the upper compartment sensor, middle compartment sensor and lower compartment sensor.
(4) Operation conditions of 3-way valve
1. Open the upper, middle and lower compartment valve by the upper, middle or lower compartment sensor .
2. Perform operation for minimum 25 minutes (for 35 minutes at middle, lower compartment) upon request of "open"
(unsatisfactory temperature) at the other side while COMP operates with the valve opened in one side, and then cutoff
the valve to other side. In this case, immediately cutoff the valve if temperature is met even if 25 minutes (35 minutes for
middle, lower compartment) have not passed.
3. In input of initial power, cool from the upper compartment where the upper compartment is Data Frz. (Deep Frz), Frz.
when all upper/middle/lower compartment is not satisfactory, and firstly cool from the middle, lower compartment for the
other case.
3-1-5. LCD BACK LIGHT CONTROL (LIMITED TO LCD MODEL)
1. To make the LCD display easy to see, the LCD back light is turned on for 1 minute for the initial power connection or for
20 seconds for the final button operation.
2. When you press any display button when the back light is turned off, the button command will not be executed nor the
buzzer sound generated. Only the back light will be turned on. But only the "Lock/Unlock" button will operate normally.
(When you press the button when the LCD back light is turned off, only the command to turn on the back light will be
executed.)
3. When you press the "Storage" button of the uppper compartment and the "Storage" button of the lower compartment
simultaneously for more than 1 second, the back light will be turned on and all the graphics on the LCD will be turned on.
When you release the buttons, the LCD graphics will return to the prior condition and the back light turned off.
(LCD graphic and back light ON/OFF check)
3-1-6. LOCK FUNCTION (DISPLAY BUTTON LOCK/UNLOCK)
1. The "Lock" display is turned on in the Lock status in application of refrigerator power.
2. Turn the "Unlock" display by pressing the Lock/Unlock button for 2 seconds or more to allow operation of the display
button.
3. Buzzer sound neither rings ever by pressing any button other than the Lock/Unlock button, nor performs function with the
"Lock" display turned on.
4. The "Lock" display automatically turns on and becomes lock status unless operating the display button for more than a
minute with the "Unlock" display turned on.
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