Operation Details - LG R410A Service Manual

Operation Details

3. Operation Details
(1) The function of main control
I Time Delay safety Control
• 30sec ... The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating opera-
tion is OFF or switched to the other operation mode while compress is off.
While compressor is running, it takes 3~5 seconds to switch to another mode.
I Soft-Dry Operation
• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of
already being set to the best speed for Dry Operation by microcontroller control.
I Cooling Mode Operation
• When selecting the Cooling(
and the operation diagram is as following.
Intake Air Temperature
SET TEMPERATURE +0.5°C
(COMP. ON)
SET TEMPERATURE -0.5°C
(COMP. OFF)
INDOOR FAN
COMPRESSOR
62 Indoor Unit
) Mode Operation, the unit will operate according to the setting by the remote controller
More than
3 minutes
Selecting
Low
fan speed
ON OFF
More than
3 minutes
Selecting
Low
fan speed
ON OFF
Selecting
fan speed
ON