User Manual

English-10
Checking before use
Operation ranges
The table below indicates the temperature and humidity ranges the air
conditioner can be operated within. Refer to the table for ecient use.
Smart install

Through Smart install function, installer can check if the installation was done properly.

If the installation was not done properly, error indicator will turn on the indoor unit display.
Therefore user will know if the installation was done properly or not.
Maintaining your air conditioner

If the air conditioner operates in cooling mode for long period of time in high humidity area, dew may be formed.

If the outdoor temperature goes down to -5 °C, heating capacity may decrease as much as 60 %~70 % of specied capacity
according to the using conditions.
(ARJQ)
Mode Indoor temperature Outdoor temperature Indoor humidity Remark
Cooling
16 ˚C~32 ˚C 15 ˚C~52 ˚C Relative humidity 80% or less
AR
✴✴ JR ✴✴
AR ✴✴ JQ ✴✴
Heating
27 ˚C or less -5 ˚C~24 ˚C - AR
✴✴ JQ ✴✴
Dry
18 ˚C~32 ˚C 15 ˚C~52 ˚C -
AR
✴✴ JR ✴✴
AR ✴✴ JQ ✴✴
Internal protections via the unit control system

This internal protection operates if an internal fault occurs in the air conditioner.
Type Description
Against cold air
(ARJQ)
The internal fan will be o to prevent cold air when the heat pump is heating.
Defrost cycle
(ARJQ)
The internal fan will be o to defrost ice when the heat pump is heating.
Vertical air ow blade will be closed during defrost cycle and it will open again during
heating operation after defrost cycle.
Protect compressor
The air conditioner does not start operating immediately to help protect the compressor
of the outdoor unit after it has been started.
• IftheheatpumpisoperatinginHeatmode,Defrostcycleisactuatedtohelpremovefrostfromanoutdoorunit
that may have deposited at low temperatures.
The internal fan is switched o automatically and restarted only after the defrost cycle is completed.
(ARJQ)
MG_GOOD_R-410A_A3050_IB&IM_EN_DB68-04540A.indd 10 9/1/2014 5:10:00 PM