LG TCM 18 Service Manual page 17

11. Forced operation
• If you lose wireless remote controller, you can operate the unit with forced operation switch.
• The standard conditions are as following.
Operation Mode
FAN Speed
Setting Temp.
• Unit operates in low fan mode for first 15 seconds, then switched to proper operation mode according to
intake Air temperature.
12. Protection of the evaporator pipe from frosting
mperature of the indoor coil is below -2°C after 7 minutes from starting the compressor, the
If the te
compressor and the outdoor fan is stopped, and then after 3 minute delay of the compressor and
the temperature of the indoor coil is over 7°C, the compressor and the outdoor fan is reoperated.
Indoor fa
n operates at low speed (comp. OFF) or at selected speed (comp. ON)
13. Inlet grille open
Once the inlet grille is opened during operation of the unit, the unit automatically stops operation and the
lamps will be turned-off. But memorized functions are still available.
When the inlet grille is closed again, the unit become waiting state for operation. From then, the unit can be
operated by forced operation button or Start/Stop button of remote controller.
14. Test Operation
• When pressing forced operation switch about 3 seconds, the unit operates in cooling mode at high speed fan
regardless of room temperature and resets in 18 min.
• During test operation, if remote controller signal is received, the unit operates as remote controller sets.
15. Auto Restarting Operation
• When the power is restored after a sudden power failure while in appliance operation, the mode before the
power failure is kept on the memory and the appliance should be on the automatically operates in the mode
on the memory.
• Operation Mode that is kept on the memory
- State of Operation ON/OFF
- Operation Mode/Setting Temp/Selected airflow Speed
- Sleep Timer Mode/Remaining Time of Sleep Timer(unit of hour)
• If no input by the remote controller or no switching of the slide switch within 7 hr after the appliance operates
by the Auto Restarting operation, the appliance is forced to stop at the moment of 7-hr elapse.
Room Temp ≥ 24°C
Cooling
High
22°C
Forced
Operation Button
R
Heat pump Model
21°C ≤ Room Temp < 24°C
Soft Dry
Soft Dry Rule
Air Intake Temperature
Press the Forced Operation Button.
• Press the Forced Operation Button once
again to stop operation.
–17–
Room Temp < 21°C
Heating
High
24°C