Daewoo DSB-070LH, Service Manual

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(1) When the remote controller is lost, damaged or the battery is discharged, the Emergency operation can be
used to run the unit.
(2) The setting conditions of Emergency operation are as follows.
* Operation mode: Quick
* Preset temperature:18°C: Cooling, 32°C: Heating)
* Fan speed: High
* You cannot operate with remote controller.
(1) When you are going to sleep, select sleep switch and the unit controls the room to the desired temperature.
(The unit will not operate after 4 hour)
(2) For changing the temperature.
(3) To cancel sleep mode, press the SLEEP button again or press the MODE button once.: the SLEEP
indicator will disappear in the display.
Sleep Mode
Emergency Operation
0 0.5 1.0 HOUR
(COOLING CYCLE)
DT
+0.5
°
C
+0.5
°
C
+0.5
°
C
0 0.5 1.0 HOUR
(HEATING CYCLE)
DT
–0.5
°
C
–0.5
°
C
–0.5
°
C
Frost Prevention of Indoor Unit
When the unit operates at low ambient temperature, frost may appear on the Evaporator. When the indoor coil
temperature is lower than 0°C at the end of 10 minutes of continuous compressor operation from the start, the
microcomputer of the unit stops the compressor to protect the unit from the frost. The control procedure for
indoor coil freeze protection.
1) The compressor and outdoor fan turn off.
2) Indoor fan operates according to user set speed.
3) The normal operation returns when the indoor coil
temperature is higher than 7°C or equal to 7°C.
-1
°
C +7
°
C
Compressor and
Outdoor Fan
ON ON
OFF
Indoor Fan
Set speed
(Indoor coil temperature)