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1. Check that all tubing and wiring have been properly

connected.

2. Check that the gas and liquid side service valves are

fully open.

1. Remove the battery cover 

by pulling it according to the
arrow direction.

2. Insert new batteries making 

sure that the (+) and (–) of 
battery are installed correctly.

3. Reattach the cover by

pushing it back into position.

• Use 2 AAA(1.5volt) batteries. Do not use

rechargeable batteries.

• Remove the batteries from the remote

control if the system is not going to be
used for a long time.

• Anchor the outdoor unit with a bolt and

nut(ø10mm) tightly and horizontally on a concrete
or rigid mount.

• When installing on the wall, roof or rooftop, anchor

the mounting base securely with a nail or wire
assuming the influence of wind and earthquake.

• In the case when the vibration of the unit is con-

veyed to the hose, secure the unit with an anti-
vibration bushing.

Operate unit for 15~20 minutes, then check the system
refrigerant charge:
1. Measure the pressure of the gas side service valve.
2. Measure the temperature of the intake and discharge

of air.

3. Ensure the difference between the intake tempera-

ture and the discharge is more than 8°C(46°F)
(Cooling) or (Heating).

4. For reference; the gas side pressure of optimum

condition is as below.(Cooling)

If the actual pressure is higher than shown,
the system is most likely over-charged, and
charge should be removed. If the actual pres-
sure are lower than shown, the system is
most likely undercharged, and charge should
be added.

The air conditioner is now ready for use.

Bolt

Tubing connection

Discharge 

temperature

Discharge air

Intake temperature

R-22

35°C (95°F)

4~5kg/cm

2

G(56.8~71.0 P.S.I.G.)

R-410A

35°C (95°F)

8.5~9.5kg/cm

2

G(120~135 P.S.I.G.)

Outside ambient

TEMP.

Refrigerant

The pressure of the gas side 

service valve.

This is performed when the unit is to be relocated
or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant in the
outdoor unit without loss in refrigerant gas.

CAUTION:
Be sure to perform Pump Down procedure with the
unit cooling mode.

Pump Down Procedure
1. Connect a low-pressure gauge manifold hose to

the charge port on the gas side service valve.

2. Open the gas side service valve halfway and purge

the air from the manifold hose using the refrigerant
gas.

3. Close the liquid side service valve(all the way in).
4. Turn on the unit's operating switch and start the

cooling operation.

5. When the low-pressure gauge reading becomes 1

to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the
gas side valve stem and then quickly turn off the
unit. At that time, Pump Down has been completed
and all refrigerant gas will have been collected in
the outdoor unit.

• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)

• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.

• While in appliance operation, ON while in outdoor unit compressor running, OFF while in compressor off.

• ON while in appliance operation, OFF while in appliance pause.
• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)

• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.

• OFF except when hot start during heating mode operation or while in defrost control.

■

• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan

stop.

• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp 

➲ 

Setting Temp+0.5°C

Compressor OFF Temp

➲

Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote control. While in compressor

not running, operating with the low airflow speed regardless of the setting.

■

• When the dehumidification operation input by the remote control is received, the intake air temperature is

detected and the setting temp is automatically set according to the intake air temperature.

26°C 

≤

Intake Air Temp     

➲ 

25°C

24°C 

≤

Intake Intake Air Temp<26°C

➲ 

Intake Air Temp-1°C

18°C 

≤

Intake Intake Air Temp<24°C

➲ 

Intake Air Temp-0.5°C

Intake Air Temp<18°C

➲ 

18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.
• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification

operation and 4-min compressor off repeat.

Compressor ON Temp.

➲

Setting Temp+0.5°C

Compressor OFF Temp.

➲

Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

■

• When the intake air temp reaches +3°…above the setting temp, the compressor is turned off.  When below

the setting temp, the compressor is turned on.

Compressor ON Temp.

➲

Setting Temp.

Compressor OFF Temp.

➲

Setting Temp.+3°C 

• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 20°C, when above 28°C , it

operates with the low or setting airflow speed. When the indoor pipe temp is between 20°C and 28°C, it oper-
ates with Super-Low(while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C, when above 35°C , it

operates with the low airflow speed.

• If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, the

outdoor fan is turned on/off according to the indoor pipe temp.

• While in defrost control, both of the indoor and outdoor fans are turned off.

■

• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing,

reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.

• After 40 min heating mode operation, at 4 min interval, whether to carry out defrost control or not and the time

of defrost control are determined according to the following conditions.

1) While in heating mode operation, the maximum of the indoor pipe temperature is measured and it is com-

pared with the present indoor pipe temperature to get the difference of the indoor pipe temperatures (=the
maximum temperature of indoor pipe ? the present temperature of indoor pipe), according to which, whether
to carry out defrost control or not is determined.

2) According to the need of defrost control shown above and the elapsed time of heating mode operation at that

moment, the defrost control time is determined.

3) When the determined time of defrost control is below 7 min, heating mode operation continues without carry-

ing out defrost control. According to the procedure stated above, the determination is made again. When the
defrost control time is 7 min or longer, defrost control is then carried out.

• While in defrost control, the minimum temp of the indoor pipe is measured and it is compared with the present

temp of the indoor pipe to get the difference of the indoor pipe temperatures (=the present temperature of the
indoor pipe ? the minimum temperature of the indoor pipe).  When the difference is 5°C or higher, defrost con-
trol is completed and heating mode operation is carried out.

• While in defrost control, if the defrost time determined before the start of defrost control is completed, defrost

control stops and heating mode operation is carried out regardless of  the above condition.

• When the indoor pipe temp is 42°C or above, defrost control is not carried out even if the condition is one of

the defrost conditions above.

• While in defrost control, the compressor is on and the indoor fan, the outdoor fan, and the 4 way valve are off.

■ 

• The airflow speed of the indoor fan is set to high, medium, low, or chaos (auto) by the input of the airflow

speed selection key on the remote control.

■ 

• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control while in appli-

ance operation,  the operation of the appliance stops.

• While the appliance is on pause, the sleep timer mode cannot be input.
• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature

increases by 1°C.  After another 30 min elapse, it increases by 1°C again.

• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to

the low.

• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to

the medium.

■ 

• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-

flow mode is operated for 2~15 sec. randomly by the Chaos Simulation.

■ 

• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.
• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■ 

• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input.  When it is input while in the
other mode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.
• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.
• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C.
• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.
• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

■

• Operation procedures when the remote control can't be used.
• The operation will be started if the power button is pressed.
• If you want to stop operation, re-press the button.

• While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times to

indicate the forced operation.

≥

≤

Operating mode

Cooling

Cooling

Healthy Dehumidification

Heating

Indoor FAN Speed

High

High

High

High

Setting Temperature

22°C

22°C

23°C

24°C