Fujitsu Air Conditioner AOU36T User Manual

OPERATING MANUAL  
ROOM AIR CONDITIONER  
MULTI SPLIT TYPE  
(3 ROOMS)  
Indoor Unit  
ASU18T  
Outdoor Unit  
AOU36T  
KEEP THIS OPERATION MANUAL  
FOR FUTURE REFERENCE.  
FUJITSU GENERAL LIMITED  
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FEATURES AND FUNCTIONS  
AUTOMATIC OPERATION  
REMOVABLE INTAKE GRILLE  
COOLING MODEL  
The indoor unit’s INTAKE GRILLE can be removed for easy  
cleaning and maintenance.  
Merely press the START/STOP button, and the unit will  
begin automatic operation in the Cooling or Dry mode as  
appropriate, in accordance with the thermostat setting  
and the actual temperature of the room.  
MILDEW-RESISTANT FILTER  
HEAT & COOL MODEL (REVERSE CYCLE)  
Merely press the START/STOP button, and the unit will  
begin automatic operation in either the Heating, Cooling  
or Monitor modes as appropriate, in accordance with the  
thermostat setting and the actual temperature of the  
room.  
The AIR FILTER has been treated to resist mildew growth,  
thus allowing cleaner use and easier care.  
AIR CLEANING FILTER (Optional)  
The optional air cleaning filter uses an electrostatic princi-  
ple to clean the air of fine particulate matter such as tobacco  
smoke and plant pollen.  
SLEEP TIMER  
COOLING MODEL  
When the SLEEP timer button is pressed during Cooling  
or Dry mode, the thermostat setting is gradually raised  
during the period of operation. When the set time is  
reached, the unit automatically turns off.  
HEAT & COOL MODEL (REVERSE CYCLE)  
When the SLEEP timer button is pressed during Heating  
mode, the air conditioner’s thermostat setting is gradu-  
ally lowered during the period of operation; during Cool-  
ing or Dry mode, the thermostat setting is gradually raised  
during the period of operation. When the set time is  
reached, the unit automatically turns off.  
WIRELESS REMOTE CONTROL UNIT  
The WIRELESS REMOTE CONTROL UNIT allows convenient  
control of air conditioner operation.  
OMNI-DIRECTIONAL AIR FLOW  
(SWING OPERATION)  
Three-dimensional control over air direction swing is possi-  
ble through dual use of both an UP/DOWN air direction swing  
and RIGHT/LEFT air direction swing. Since UP/DOWN air  
direction flaps operate automatically according to the oper-  
ating mode of the unit, it is possible to set air direction based  
on the operating mode.  
En-2  
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Fig. 1  
Fig. 2  
Fig. 3  
Fig
Fig. 4  
Fig. 6  
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NAME OF PARTS  
Fig. 1 Indoor Unit  
Fig. 6 Remote Control Unit  
1 Operating Control Panel (Fig. 2)  
2 MANUAL AUTO button  
J SLEEP button  
K MASTER CONTROL button  
L SET TEMP./SET TIME button (  
M Signal Transmitter  
)
3 Remote Control Signal Receiver  
4 Indicator Lamps (Fig. 3)  
5 OPERATION Indicator Lamp (red)  
6 TIMER Indicator Lamp (green)  
If the TIMER indicator lamp flashes when  
the timer is operating, it indicates that a  
fault has occurred with the timer setting  
(see page 17 Auto Restart).  
N TIMER button  
O FAN CONTROL button  
P START/STOP button  
Q AIR FLOW DIRECTION button  
R SWING LOUVER button  
Rear side (Fig. 7)  
S TIME ADJUST button  
T ACL button  
(located inside battery compartment)  
U TEST RUN button  
7 SWING Indicator Lamp (orange)  
8 Intake Grille (Fig. 4)  
9 Air Filter  
0 Air Flow Direction Louver  
A Right-Left Louvers  
(behind Air Flow Direction Louver)  
B Drain Hose  
This button is used when installing the  
unit, and should not be used under nor-  
mal conditions, as it will cause the air con-  
ditioner’s thermostat function to operate  
incorrectly.  
C Inter Unit-Line  
D Air Cleaning Filter (optional)  
If this button is pressed during normal op-  
eration, the unit will switch to test opera-  
tion mode, and the Indoor Unit’s OPERA-  
TION Indicator Lamp and TIMER Indicator  
Lamp will begin to flash simultaneously.  
Fig. 5 Outdoor Unit  
To stop the test operation mode, press the  
START/STOP button to stop the air condi-  
tioner.  
E Power Supply  
F Intake Port  
G Outlet Port  
H Pipe Unit  
I Drain port (bottom)  
V Remote Control Unit Display (Fig. 8)  
W Transmit Indicator  
X Clock Display  
Y Operating Mode Display  
Z Timer Mode Display  
[ Fan Speed Display  
\ Temperature Set Display  
] Timer Set Indicator  
` Temperature Set Indicator  
En-4  
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NAME OF PARTS  
Instructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
Fig. 1  
Fig. 2  
Fig. 3  
Fig. 5  
Fig. 4  
Fig. 6  
J
SLEEP  
TIMER  
U
V
G
K
CLOCK  
AUTO  
COOL  
MASTER  
SET SET  
FAN  
CLOCK  
AM  
TIMER SLEEP  
ON  
CONTROL TEMP. TIME CONTROL  
W
Y
Z
L
M
H
I
PM  
H
M
OFF  
OFF  
ON TIMER RESET  
ENERGY SAVE  
A
START  
STOP  
AUTO  
AUTO  
COOL  
DRY  
FAN  
HEAT  
HIGH  
MED  
LOW  
N
*
[
\
]
X
SET  
SWING  
O
SET  
SWING  
R
S
T
Fig. 8  
TIME TEST  
ENERGY  
SAVE  
ADJUST RUN ACL  
P
Q
Fig. 7  
En-5  
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Fig. 1 Indoor Unit  
Fig. 6 Remote Control Unit  
1 Operating Control Panel (Fig. 2)  
2 MANUAL AUTO button  
G SLEEP Button  
H MASTER CONTROL Button  
I SET TEMP./SET TIME Buttons (  
J Signal Transmitter  
)
3 Remote Control Signal Receiver  
4 Indicator Lights (Fig. 3)  
K TIMER Button  
5 OPERATION Indicator Light (red)  
6 TIMER Indicator Light (green)  
7 SWING Indicator Light (orange)  
(VERTICAL SWING)  
8 SWING Indicator Light (orange)  
(HORIZONTAL SWING)  
L FAN CONTROL Button  
M START/STOP Button  
N Battery compartment lid  
Inside of the battery compartment lid (Fig. 7)  
O AIR FLOW DIRECTION Button  
P ENERGY SAVE Button  
Q CODE CHANGE (Slide Switch)  
Switching the remote control unit code.  
(Max. 4 units)  
If the TIMER indicator light flashes when  
the timer is operating, it indicates that a  
fault has occurred with the timer setting  
(See page 15 Auto Restart).  
R TIME ADJUST Button  
S TEST RUN Button  
9 Intake Grille (Fig. 4)  
0 Air Filter  
A UP/DOWN Air Direction Flaps  
B RIGHT/LEFT Air Direction Louvers  
(behind UP/DOWN Air Direction Flaps)  
C Drain Hose  
This button is used when installing the air  
conditioner and should not be used under  
normal conditions as it will cause the air  
conditioner’s thermostat function to oper-  
ate incorrectly.  
If this button is pressed during normal op-  
eration, the unit will switch to test opera-  
tion mode, and the indoor unit’s OPERA-  
TION indicator light and TIMER indicator  
light will begin to flash simultaneously.  
To stop the test operation mode, either  
press the TEST RUN button once again, or  
press the START/STOP button to stop the  
air conditioner.  
D Air Cleaning Filter (optional)  
Fig. 5 Outdoor Unit  
E Intake Side  
F Outlet Side  
T ACL Button  
U Remote Control Unit Display (Fig. 8)  
V Transmit Indicator  
W Clock Display  
X Operating Mode Display  
Y Timer Mode Display  
Z Fan Speed Display  
[ Temperature Set Display  
\ Timer Set Indicator  
] Temperature Set Indicator  
En-6  
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PREPARATION  
CAUTION!  
Turn on the Power  
Take care to prevent infants from acciden-  
tally swallowing batteries.  
In the case of a direct line connection, turn on the circuit  
breaker.  
When not using the remote control unit  
for an extended period, remove the bat-  
teries to avoid possible leakage and dam-  
age to the unit.  
If leaking battery fluid comes in contact  
with your skin, eyes, or mouth, immedi-  
ately wash with copious amounts of wa-  
ter, and consult your physician.  
Load Batteries (AAA × 2)  
Press and slide the battery compartment lid on the re-  
Dead batteries should be removed quickly  
and disposed of properly, either by plac-  
ing in a public battery collection recepta-  
cle, or by returning to appropriate author-  
ity.  
1
verse side to open it.  
Slide in the direction of the arrow while pressing the  
mark.  
Do not attempt to recharge dry batteries.  
Insert batteries.  
2
3
Never mix new and used batteries, or  
batteries of different types.  
Be sure to align the battery polarities (  
) correctly.  
Batteries should last about one year  
under normal use. If the remote control  
unit’s operating range becomes appre-  
ciably reduced, replace the batteries and  
press the ACL button (Fig. 7 T) with  
the tip of a ballpoint pen or other small  
object.  
Close the battery compartment lid.  
Set the Current time  
Press the TIME ADJUST button (Fig. 7 S).  
Use the tip of a ball-point pen or other small object to press the button.  
1
2
Use the  
SET TEMP./SET TIME buttons (Fig. 6 L)  
to adjust the clock to the current time.  
button: Press to advance the time.  
button: Press to reverse the time.  
(Each time the buttons are pressed, the time will be advanced/reversed in  
one-minute increments; hold the buttons depressed to change the time  
quickly in ten-minute steps.)  
Press the TIME ADJUST button again.  
This completes the time setting and starts the clock.  
3
To Use the Remote Control Unit  
The remote control unit must be pointed at signal receiver (Fig. 1 3) to operate  
correctly.  
Operating range: About 7 meters.  
When a signal is properly received by the air conditioner, a beep be heard.  
If no beep is heard, press the remote control unit button again.  
Remote Control Unit Holder  
Insert  
Slide up  
Press in  
Pull out  
Screws  
1
Mount the Holder.  
2
Set the Remote Control  
Unit.  
3
To remove the Remote  
Control Unit .  
En-7  
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PREPARATION  
CAUTION!  
Load Batteries (R03/LR03/AAA × 4)  
Take care to prevent infants from  
accidentally swallowing batteries.  
When not using the remote control unit  
for an extended period, remove the  
batteries to avoid possible leakage and  
damage to the unit.  
Open the battery compartment lid.  
1
1 Slide the battery compartment lid until it stops.  
2 While strongly gripping the portion on each side of the battery com-  
partment lid that has a rough surface, slide the lid until it comes com-  
If leaking battery fluid comes in contact  
with your skin, eyes, or mouth, immedi-  
ately wash with copious amounts of  
water, and consult your physician.  
Dead batteries should be removed  
immediately and disposed of properly,  
either in a battery collection receptacle  
or to the appropriate authority.  
pletely off.  
2
1
2
Insert batteries.  
Be sure to align the battery polarities (  
2
2
) correctly.  
Do not attempt to recharge dry batteries.  
Never mix new and used batteries, or  
batteries of different types.  
Close the battery compartment lid.  
3
Batteries should last about one year  
under normal use. If the remote control  
unit’s operating range becomes appre-  
ciably reduced, replace the batteries and  
press the ACL button with the tip of a  
ballpoint pen or other small object.  
Set the Current time  
Press the TIME ADJUST button.  
Use the tip of a ball-point pen or other small object to press the button.  
1
Use the (  
)SET TIME buttons to adjust the clock to  
2
3
the current time.  
SET  
SWING  
SET  
SWING  
button: Press to advance the time.  
TIME EST  
button: Press to reverse the time.  
ENERGY  
SAVE  
ADJUST RUN ACL  
(Each time the buttons are pressed, the time will be advanced/reversed in  
one-minute increments; hold the buttons depressed to change the time  
quickly in ten-minute increments.)  
Press the TIME ADJUST button again.  
This completes the time setting and starts the clock.  
To Use the Remote Control Unit  
The remote control unit must be pointed at signal receiver to operate correctly.  
Maximum operating range: Approximately 10 meters. (This may not apply when  
the battery is low or there are obstacles.)  
When a signal is properly received by the air conditioner, a beep will be heard.  
If no beep is heard, press the remote control unit button again.  
Remote Control Unit Holder  
For Hand-Held use  
For Wall Mount use  
Insert  
Insert  
Slide up  
Slide  
Screws  
Screws  
Screw  
1
Mount the Holder.  
2
Set the Remote  
Control Unit.  
3 Attach the unit to  
1
Mount the Holder.  
2
Set the Remote  
Control Unit.  
3
To remove the  
Remote Control  
Unit.  
the holder as  
shown.  
En-8  
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OPERATION  
To Select Mode Operation  
Press the START/STOP button (Fig.6 P).  
1
2
The indoor unit’s OPERATION indicator lamp (red) (Fig. 3 5) will light.  
The air conditioner will start operation.  
Press the MASTER CONTROL button (Fig.6 K) to se-  
lect the desired mode.  
Each time the button is pressed, the mode will change in the following  
order:  
s
s
AUTO  
s
s
COOL  
DRY  
FAN  
About three seconds later, the entire display will reappear.  
Example: When set to COOL  
To Set the Thermostat  
Press the SET TEMP. buttons (Fig. 6 L).  
button: Press to raise the thermostat setting.  
button: Press to lower the thermostat setting.  
Thermostat setting range:  
Cooling/Drying........................ 64 to 88 °F  
Fan ........................................... 62 to 88 °F  
About three seconds later, the entire display will reappear.  
NOTE:  
During Fan mode, set the unit to “– – “ for continuous fan operation regard-  
less of room temperature.  
The thermostat setting should be considered a standard value, and may differ  
somewhat from the actual room temperature.  
Example: When set to 80 °F  
To Set the Fan Speed  
Press the FAN CONTROL button (Fig. 6 O).  
Each time the button is pressed, the fan speed changes in the following order:  
s
HIGH  
s
MED  
s
LOW  
s
AUTO  
s
QUIET  
About three seconds later, the entire display will reappear.  
When set to AUTO:  
Cooling : As the room temperature approaches that of the thermostat setting,  
the fan speed becomes slower.  
Fan  
:
The fan will operate at the optimum speed in accordance with the  
room temperature in the vicinity of the indoor unit.  
When set to QUIET:  
SUPER QUIET operation begins. The indoor unit’s airflow will be reduced for  
quieter operation.  
SUPER QUIET operation cannot be used during Dry mode. (The same is true  
when dry mode is selected during AUTO mode operation.)  
Example: When set to AUTO  
During SUPER QUIET operation, Cooling performance will be reduced some-  
In order to increase the drying effect  
during quiet cooling operation, the fan of  
the indoor unit may stop.  
what.  
En-9  
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To Select Automatic Operation  
Press the MASTER CONTROL button to select AUTO.  
The operating mode “AUTO” will appear alone in the display. The transmit indi-  
cator will flash to indicate the command has been sent, and about three sec-  
onds later the entire display panel will reappear.  
To Set the Thermostat  
Press the TEMPERATURE set button.  
LOW HIGH  
LOW HIGH  
LOW HIGH  
LOW HIGH  
LOW HIGH  
When set to  
4 °F lower  
When set to  
2 °F lower  
When set to  
“normal”  
When set to  
2 °F higher  
When set to  
4 °F higher  
About three seconds later, the entire display will reappear.  
NOTE: The thermostat setting should be considered a standard value, and may  
differ somewhat from the actual room temperature.  
To Stop Operation  
Press the START/STOP button.  
The OPERATION indicator lamp (red) (Fig. 3 5) will go out.  
Example: When set to “normal”  
About Mode Operation  
AUTO:  
Depending on the room temperature at the time operation begins, the operating  
mode will be switched automatically as shown in the accompanying table.  
Also, depending on the operating mode, the room temperature setting will cause  
the “standard” temperature to be set as shown.  
Actual Room  
Operating Mode  
Thermostat Setting  
Temperature  
(standard setting)  
88 °F or above   
Cooling  
Cooling  
Dry  
Dry  
Dry  
82 °F  
80 °F  
76 °F  
72 °F  
68 °F  
82 to 88 °F  
78 to 82 °F  
74 to 78 °F  
Below 74 °F  
The operating mode and standard thermostat settings are selected automatically  
when operation begins.  
When automatic operation is initiated, the fan will run at very low speed for about  
one minute while the unit detects and selects the proper operating mode.  
During Cooling/Dry mode:  
Set the thermostat to a temperature setting  
that is lower than the current room tempera-  
ture. The Cooling and Dry modes will not  
operate if the thermostat is set higher than  
the actual room temperature (in Cooling  
mode, the fan alone will operate).  
Once the operating mode has been set, the mode will not change even if the  
room temperature changes.  
If the START/STOP button is pressed to recommence operation within two hours  
after stopping automatic operation, the unit will begin operating from the same  
mode as before.  
During Fan mode:  
Fan operation begins when room tem-  
perature in the vicinity of the air condi-  
tioner rises above the set thermostat  
temperature; when the temperature  
drops, fan operation stops.  
Cooling:  
Use to cool your room.  
If the air emitted feels too cool, raise  
the thermostat setting.  
Dry:  
Use for gently cooling while dehumidifying your room.  
You cannot heat the room during Dry mode.  
During Dry mode, the unit will operate at low speed; in order to adjust room  
humidity, the indoor unit’s fan may stop from time to time. Also, the fan may  
operate at very low speed when detecting room humidity.  
The fan speed cannot be changed manually when Dry mode has been selected.  
Fan:  
Use to circulate warm air from ceiling area throughout room when using space  
heaters.  
En-10  
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OPERATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
To Select Mode Operation  
SLEEP  
TIMER  
Press the START/STOP button.  
1
The indoor unit’s OPERATION indicator light (red) will be on.  
The air conditioner will start operating.  
COOL  
Press the MASTER CONTROL button to select the de-  
2
MASTER  
SET SET  
FAN  
sired mode.  
CONTROL TEMP. TIME CONTROL  
Each time the button is pressed, the mode will change in the following  
order.  
AUTO  
s
COOL  
s
DRY  
s
*HEAT  
FAN  
t
t
About three seconds later, the entire display will reappear.  
Example: When set to COOL  
To Set the Thermostat  
SLEEP  
TIMER  
Press the SET TEMP. buttons.  
button: Press to raise the thermostat setting.  
button: Press to lower the thermostat setting.  
Thermostat setting range:  
MASTER  
SET SET  
FAN  
AUTO .................................. 64 to 88 °F  
CONTROL TEMP. TIME CONTROL  
* Heating ............................... 60 to 88 °F  
Cooling/Dry ........................ 64 to 88 °F  
The thermostat cannot be used to set room temperature during the FAN mode (the  
temperature will not appear on the remote control unit’s display).  
About three seconds later, the entire display will reappear.  
Example: When set to 82 °F  
The thermostat setting should be considered a standard value, and may differ  
somewhat from the actual room temperature.  
To Set the Fan Speed  
SLEEP  
TIMER  
Press the FAN CONTROL button.  
Each time the button is pressed, the fan speed changes in the following order:  
AUTO  
s
HIGH  
s
MED  
LOW  
s
s
AUTO  
About three seconds later, the entire display will reappear.  
MASTER  
SET SET  
FAN  
CONTROL TEMP. TIME CONTROL  
When set to AUTO:  
* Heating : Fan operates so as to optimally circulate warm air.  
However, the fan will operate at very low speed when the temperature  
of the air from the indoor unit is low.  
Cooling : As the room temperature approaches that of the thermostat setting,  
the fan speed becomes slower.  
Example: When set to AUTO  
Fan  
: The fan alternately turns on and off; when on, the fan runs at the low  
fan speed.  
The fan will operate at a very low setting during Monitor operation  
and at the start of the Heating mode.  
To Stop Operation  
Press the START/STOP button.  
The OPERATION indicator light (red) will turn off.  
En-11  
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OPERATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
About Mode Operation  
AUTO:  
COOLING MODEL  
When the room temperature is 4 °F  
higher than the set temperature, the  
Cooling Operation  
mode will switch between Cooling and  
Drying.  
Dry Operation  
Thermostat control  
During the Drying mode operation, the  
FAN setting should be switched to LOW  
for a gently cooling effect during which  
the fan may temporarily stop rotating.  
4 °F  
If the mode automatically selected by the  
Setting temperature  
unit is not satisfactory, see page 6 for in-  
structions on changing the mode setting  
(COOL, DRY, FAN).  
AUTO (* AUTO CHANGEOVER):  
HEAT & COOL MODEL (Reverse cycle)  
When AUTO CHANGEOVER is selected, the air conditioner selects the appropri-  
ate operation mode (Cooling or Heating) according to your room’s present tem-  
perature.  
When AUTO CHANGEOVER is first selected, the fan will operate at very low speed  
for about one minute while the unit determines the current conditions of the  
room and accordingly selects the proper operation mode.  
When the air conditioner has adjusted your room’s temperature to near the ther-  
mostat setting, it will begin monitor operation. In the monitor operation mode,  
the fan will operate at low speed. If the room temperature subsequently changes,  
the air conditioner will once again select the appropriate operation (Heating, Cool-  
ing) to adjust the temperature to the value set in the thermostat. (The monitor  
operation range is 4 °F relative to the thermostat setting.)  
If the mode automatically selected by the unit is not satisfactory, see page 6 for  
instructions on changing the mode setting (HEAT, COOL, DRY, FAN).  
*Heating:  
Use to warm your room.  
When Heating mode is selected, the air conditioner will operate at very low fan  
speed for about 3 to 5 minutes, after which it will switch to the selected fan set-  
ting. This period of time is provided to allow the indoor unit to warm up before  
begin full operation.  
* During Heating mode:  
Set the thermostat to a temperature set-  
ting that is higher than the current room  
temperature. The Heating mode will not  
operate if the thermostat is set lower than  
the actual room temperature.  
When the room temperature is very low, frost may form on the outside unit, and  
its performance may be reduced. In order to remove such frost, the unit will  
automatically enter the defrost cycle from time to time. During Automatic De-  
frosting operation, the OPERATION indicator light (red) will flash, and the heat  
operation will be interrupted.  
During Cooling/Dry mode:  
Set the thermostat to a temperature set-  
ting that is lower than the current room  
temperature. The Cooling and Dry modes  
will not operate if the thermostat is set  
higher than the actual room temperature  
(in Cooling mode, the fan alone will oper-  
ate).  
Cooling:  
Use to cool your room.  
During Fan mode:  
The heat and cool functions of this unit  
cannot operate in the Fan mode.  
Dry:  
Use for gently cooling while dehumidifying your room.  
You cannot heat the room during Dry mode.  
During Dry mode, the unit will operate at low speed; in order to adjust room  
humidity, the indoor unit’s fan may stop from time to time. Also, the fan may  
operate at very low speed when detecting room humidity.  
The fan speed cannot be changed manually when Dry mode has been selected.  
Fan:  
Use to circulate the air throughout your room.  
En-12  
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TIMER OPERATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
Before using the timer function, be sure that the remote control unit is set to the current time (See page 5).  
To Use the ON timer or OFF timer  
SLEEP  
TIMER  
Press the START/STOP button  
(if the unit is already operating, proceed to step 2).  
The indoor unit’s OPERATION indicator light (red) will turn on.  
TIMER  
ON  
1
2
MASTER  
SET SET  
CONTROL TEMP. TIME CONTROL  
FAN  
Press the TIMER button to select the OFF timer or ON  
timer operation.  
Each time the button is pressed the timer function changes in the follow-  
ing order:  
To Cancel the Timer  
Use the TIMER button to select “TIMER  
RESET.”  
The air conditioner will return to normal  
operation.  
sRESET  
PROGRAM(OFF ON, OFF ON)  
sOFF  
sON  
t
To Change the Timer Settings  
The indoor unit’s TIMER indicator light (green) will turn on.  
Perform steps 2 and 3.  
To Stop Air Conditioner Operation  
while the Timer is Operating  
Use the SET TIME buttons to adjust the desired OFF  
time or ON time.  
Set the time while the time display is flashing (the flashing will continue  
for about five seconds).  
3
Press the START/STOP button.  
To Change Operating Conditions  
If you wish to change the operating  
button: Press to advance the time.  
button: Press to reverse the time.  
conditions (Mode, Fan Speed, Thermostat  
Setting), after making the timer setting,  
wait until the entire display reappears, then  
press the appropriate buttons to change to  
the desired operating condition.  
About five seconds later, the entire display will reappear.  
To Use the PROGRAM timer  
Press the START/STOP button  
SLEEP  
TIMER  
TIMER  
ON  
1
(if the unit is already operating, proceed to step 2).  
The indoor unit’s OPERATION indicator light (red) will turn on.  
MASTER  
SET SET  
FAN  
CONTROL TEMP. TIME CONTROL  
Set the desired times for OFF timer and ON timer.  
2
See the section “To Use the ON timer or OFF timer” to set the desired  
To Cancel the Timer  
mode and times.  
About three seconds later, the entire display will reappear.  
The indoor unit’s TIMER indicator light (green) will turn on.  
Use the TIMER button to select “TIMER  
RESET.”  
The air conditioner will return to normal  
operation.  
Press the TIMER button to select the PROGRAM timer  
3
To Change the Timer Settings  
operation (either OFF ON or OFF ON will display).  
1. Follow the instructions given in the section  
“To Use the ON Timer or OFF Timer” to se-  
lect the timer setting you wish to change.  
The display will alternately show “OFF timer” and “ON timer”, then change  
to show the time setting for the operation to occur first.  
The PROGRAM timer will begin operation. (If the ON timer has been  
selected to operate first, the unit will stop operating at this point.)  
2. Press the TIMER button to select either  
OFF ON or OFF ON.  
To Stop Air Conditioner Operation  
while the Timer is Operating  
About five seconds later, the entire display will reappear.  
Press the START/STOP button.  
To Change Operating Conditions  
If you wish to change the operating  
conditions (Mode, Fan Speed, Thermostat  
Setting), after making the timer setting,  
wait until the entire display reappears, then  
press the appropriate buttons to change to  
the desired operating condition.  
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TIMER OPERATION  
About the PROGRAM timer  
About the ON timer  
The PROGRAM timer allows you to integrate OFF timer  
and ON timer operations in a single sequence. The se-  
quence can involve one transition from OFF timer to ON  
timer, or from ON timer to OFF timer, within a twenty-  
four hour period.  
The timer function is designed to bring your room to a  
comfortable temperature by the set time; as a result, the  
unit automatically begins operation before the set time  
so that the room reaches the desired temperature by the  
time set on the timer.  
The first timer function to operate will be the one set near-  
est to the current time. The order of operation is indi-  
cated by the arrow in the remote control unit’s display  
(OFF ON, or OFF ON).  
The hotter it is in summer, or the colder it is in winter, the  
earlier that operation will begin.  
* During Heating Operation ....... from 45 to 10 minutes be-  
fore set time.  
One example of PROGRAM timer use might be to have  
the air conditioner automatically stop (OFF timer) after  
you go to sleep, then start (ON timer) automatically in  
the morning before you rise.  
During Cooling/Dry Operation ... from 20 to 10 minutes be-  
fore set time.  
During Fan Operation .............. at the set time.  
SLEEP TIMER OPERATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
Unlike other timer functions, the SLEEP timer is designed to set the duration of time in which the unit does not operate.  
To Use the SLEEP timer  
While the air conditioner is operating or stopped, press the  
SLEEP  
TIMER  
SLEEP button.  
SLEEP  
Both the indoor units OPERATION indicator light (red) and the TIMER indicator  
light (green) will turn on.  
COOL  
MASTER SET SET FAN  
CONTROL TEMP. TIME CONTROL  
To Change the Timer Settings  
Press the SLEEP button once again and set the time using the  
SET TIME buttons.  
Set the time while the Timer Mode Display is flashing (the flashing will continue for  
about five seconds).  
To Cancel the Timer:  
Use the TIMER button to select “TIMER  
RESET”.  
The air conditioner will return to normal  
operation.  
button: Press to advance the time.  
button: Press to reverse the time.  
To Stop the Air Conditioner During  
Timer Operation:  
About five seconds later, the entire display will reappear.  
Press the START/STOP button.  
About the SLEEP timer  
To prevent excessive warming or cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting  
in accordance with the time setting. When the set time has elapsed, the air conditioner completely stops.  
During Cooling/Dry operation:  
When the SLEEP timer is set, the thermostat setting is auto-  
matically raised 2 °F every sixty minutes. When the thermo-  
stat has been raised a total of 4 °F, the thermostat setting at  
that time is maintained until the set time has elapsed, at which  
time the air conditioner automatically turns off.  
SLEEP timer setting  
Set time  
1 hour  
4 °F  
2 °F  
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ADJUSTING THE DIRECTION OF AIR CIRCULATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
Vertical (up-down) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION VERTICAL SET  
button. Horizontal (right-left) direction of airflow is adjusted by pressing the remote control unit’s AIR FLOW DIRECTION  
HORIZONTAL SET button.  
DANGER!  
Vertical Air Direction Adjustment  
Never place fingers or foreign objects inside  
the outlet ports, since the internal fan oper-  
ates at high speed and could cause personal  
injury.  
Press the AIR FLOW DIRECTION VERTICAL SET button.  
Each time the button is pressed, the air direction range will change as follows:  
1
2
3
4
5
6
7
Always use the remote control unit’s  
AIR FLOW DIRECTION button to adjust  
the UP/DOWN air direction flaps or  
RIGHT/LEFT air direction louvers. At-  
tempting to move them manually  
could result in improper operation; in  
this case, stop operation and restart.  
The louvers should begin to operate  
properly again.  
Types of Air flow Direction Setting:  
1,2,3,4  
5,6,7  
:
:
During Cooling/Dry Modes  
* During Heating mode  
The remote control unit’s display does  
not change.  
Fig. 9  
During use of the Cooling and Dry  
modes, do not set the UP/DOWN air  
direction flaps in the Heating range (5  
to 7) for long periods of time, since  
water vapor may condense near the  
outlet louvers and drops of water may  
drip from the air conditioner.  
Use the air direction adjustments within the ranges shown above.  
The vertical airflow direction is set automatically as shown, in accordance with  
the type of operation selected.  
During Cooling/Dry mode : Horizontal flow 1  
* During Heating mode  
: Downward flow 7  
When used in a room with infants, chil-  
dren, elderly or sick persons, the air  
direction and room temperature  
should be considered carefully when  
adjusting settings.  
During AUTO mode operation, for the first minute after beginning operation,  
airflow will be horizontal 1; the air direction cannot be adjusted during this pe-  
riod.  
SET  
SWING  
Horizontal Air Direction Adjustment  
SET  
SWING  
TIME TEST  
Press the AIR FLOW DIRECTION HORIZONTAL SET button.  
Each time the button is pressed, the air direction range will change as follows:  
DJUST RUN ACL  
1
2
3
4
5
Example: When set to vertical air direc-  
The remote control unit’s display does  
not change.  
tion  
RIGHT/LEFT air direction louvers  
Use the air direction adjustments within the ranges shown above.  
SET  
SWING  
SET  
SWING  
TIME
ENERGY  
SAVE  
ADJUST
Example: When set to horizontal air  
direction  
Fig. 10  
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ADJUSTING THE DIRECTION OF AIR CIRCULATION  
Vertical (up-down) direction of airflow is adjusted by pressing the Remote Control Unit’s AIR FLOW DIRECTION button. Hori-  
zontal (right-left) airflow direction is adjusted manually, by moving the Air Flow Direction Louvers.  
Whenever making horizontal airflow adjustments, start air conditioner operation and be sure that the vertical air direction  
louvers are stopped.  
Vertical Air Direction Adjustment  
Press the AIR FLOW DIRECTION button (Fig. 6 Q).  
Each time the button is pressed, the air direction range will change as follows:  
Cooling/Dry  
1
1
2
2
3
3
(6)NOTE  
mode  
4
5
6
7
Fan mode  
Use the air direction adjustments within the ranges shown above.  
CAUTION!  
The vertical airflow direction is set automatically as shown, in accordance with  
Never place fingers or foreign objects inside  
the outlet ports, since the internal fan oper-  
ates at high speed and could cause personal  
injury.  
the type of operation selected.  
During Cooling/Dry modes : Horizontal flow 1  
During Fan mode  
: Downward flow 6  
If you wish to select a different airflow direction, you may use the remote control  
Always use the remote control unit’s  
AIR FLOW DIRECTION button to adjust  
the vertical airflow louvers. Attempt-  
ing to move them manually could re-  
sult in improper operation; in this case,  
stop operation and restart. The louvers  
should begin to operate properly  
again.  
unit’s AIR FLOW DIRECTION button to choose a different setting.  
During AUTO mode operation, for the first minute after beginning operation,  
airflow will be horizontal 1; the air direction cannot be adjusted during this pe-  
riod.  
NOTE  
You can select the air direction 1, 2, 3, or 6 (downward) by pressing the AIR  
FLOW DIRECTION button.  
When used in a room with infants, chil-  
dren, elderly or sick persons, the air  
direction and room temperature  
should be considered carefully when  
making settings.  
Use the air direction 6 when you want to cool yourself for a while after taking  
a bath or shower, or after coming back home in summer months.  
But, for prevention of condensation on the louver, the air direction 6 is auto-  
matically released after 30 minutes and turned to the air direction 3.  
Always operate the Air Flow Direction  
Louvers and the Power Diffuser with  
the air flow direction buttons on the  
remote control. Forcible movement by  
hand can cause incorrect operation. In  
such a case, stop the operation to let  
the unit return to normal condition.  
Right-Left Adjustment  
Adjust the Right-Left louvers.  
Move the Right-Left louvers to adjust air flow in the direction you prefer.  
Right-Left Louvers  
knob  
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SWING OPERATION  
Begin air conditioner operation before performing this procedure.  
To select SWING Operation  
Press the SWING LOUVER button (Fig. 6 R).  
The SWING indicator lamp (orange) (Fig. 3 7) will light.  
In this mode, the Air Flow Direction Louvers will swing automatically to direct  
the airflow both up and down.  
To Stop SWING Operation  
Press the SWING LOUVER button (Fig. 6 R) once again.  
The SWING indicator lamp (orange) (Fig. 3 7) will go out.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
The SWING range is as follows:  
Cooling/Dry  
NOTE  
1
1
3, (4  
7)  
mode  
3, 4  
7
Fan mode  
NOTE  
The air swings between 4 and 7 by pressing the SWING  
LOUVER button after selecting the air direction 6 (down-  
ward) by pressing the AIR FLOW DIRECTION button.  
Use this operation when you want to cool yourself for a  
while after taking a bath or shower, or after coming back  
home in summer months.  
The SWING operation may stop temporarily when the air  
conditioner’s fan is not operating or when operating at  
very low speeds.  
The airflow direction can not be adjusted during SWING  
operation even when the AIR FLOW DIRECTION button is  
pressed.  
But, for prevention of condensation on the louver, the  
swing of the air direction 4 7 is automatically released  
after 30 minutes and turned to the swing of the air direc-  
tion 1 3.  
MANUAL AUTO OPERATION  
Use the MANUAL AUTO operation in the event the Remote Control Unit is lost or otherwise unavailable.  
How To Use the Main Unit Controls  
Press the MANUAL AUTO button (Fig. 2 2) on the main  
When the air conditioner is operated  
unit control panel.  
To stop operation, press the MANUAL AUTO button once again.  
(Controls are located inside the Intake Grille.)  
with the controls on the Main unit, it  
will operate under the same mode as  
the AUTO mode selected on the Re-  
mote Control Unit (see page 8).  
The fan speed selected will be  
“AUTO” and the thermostat setting  
will be standard.  
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SWING OPERATION  
Begin air conditioner operation before performing this procedure.  
To select Vertical airflow SWING Operation  
Press the AIR FLOW DIRECTION VERTICAL SWING button .  
The SWING indicator light (VERTICAL SWING) (orange) will turn on.  
In this mode, the UP/DOWN air direction flaps will swing automatically to direct the  
air flow both up and down.  
SET  
SWING  
SET  
SWING  
TTEST  
ENERGY  
SAVE  
UN ACL  
To Stop Vertical airflow SWING Operation  
Example: When set to vertical swing  
Press the AIR FLOW DIRECTION VERTICAL SWING button  
once again.  
The SWING indicator light (VERTICAL SWING) will turn off.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
The range of swing is relative to the currently set airflow  
direction.  
If the swing range is not as desired, use the remote con-  
trol unit’s AIR FLOW DIRECTION VERTICAL SET button to  
change the range of swing.  
Air flow direction set  
Range of swing  
1 to 3  
The SWING operation may stop temporarily when the air  
conditioner’s fan is not operating, or when operating at  
very low speeds.  
1
2
3
4
5
6
7
1 to 4  
2 to 5  
During use of the Cooling and Dry modes, do not set the  
air UP/DOWN direction flaps, in the Heating range (5 to  
7) for long periods of time, since water vapor may con-  
dense near the outlet louvers and drops of water may  
drip from the air conditioner.  
3 to 6  
4 to 7  
5 to 7  
1 to 7 (All range)  
Air direction range (See page 10, Fig. 9)  
To select Horizontal airflow SWING Operation  
Press the AIR FLOW DIRECTION HORIZONTAL SWING button.  
The SWING indicator light (HORIZONTAL SWING) (orange) will turn on.  
In this mode, the RIGHT/LEFT air direction louvers will swing automatically to direct  
the airflow both right and left.  
SET  
SWING  
SET  
SWING  
TIME TEST  
ENERGY  
SAVE  
ADJUST RUN AC
To Stop Horizontal airflow SWING Operation  
Example: When set to horizontal swing  
Press the AIR FLOW DIRECTION HORIZONTAL SWING button  
once again.  
The SWING indicator light (HORIZONTAL SWING) will turn off.  
Airflow direction will return to the setting before swing was begun.  
About Swing Operation  
The range of swing is relative to the currently set airflow  
direction.  
If the swing range is not as desired, use the remote con-  
trol unit’s AIR FLOW DIRECTION HORIZONTAL SET but-  
ton to change the range of swing.  
Air flow direction set  
Range of swing  
1 to 5 (All range)  
1 to 3  
The SWING operation may stop temporarily when the air  
conditioner’s fan is not operating, or when operating at  
very low speeds.  
1
2
3
4
5
2 to 4  
3 to 5  
1 to 5 (All range)  
Air direction range (See page 10, Fig. 10)  
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ENERGY SAVE OPERATION  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
The air conditioner can be operated while keeping energy consumption costs down.  
How To Use the ENERGY SAVE OPERATION  
SET  
SWING  
SET  
SWING  
Press the START/STOP button  
(if the unit is already operating, proceed to step 2).  
The indoor unit’s OPERATION indicator light (red) will turn on.  
1
TIME TEST  
ENERGY  
SAVE  
ADJUST RUN ACL  
Press the MASTER CONTROL button to select the  
COOL, DRY, *HEAT mode.  
2
3
To Cancel the ENERGY SAVE:  
Press the ENERGY SAVE button.  
ENERGY SAVE can only be used if the MASTER CONTROL button is used  
to select the “COOL”, “DRY” or *“HEAT”.  
Press the ENERGY SAVE button.  
About the ENERGY SAVE  
The air conditioner saves energy costs by controlling the thermostat temperature setting.  
During Cooling/Dry operation:  
The thermostat temperature setting increases by 2 °F as soon  
as the ENERGY SAVE button is pressed, and then increases  
by another 2 °F after one hour has passed.  
In this manner, energy is saved by continuing to cool or dry  
at a thermostat temperature of 4 °F above the setting.  
ENERGY SAVE setting  
1 hour  
ENERGY  
SAVE ON  
4 °F  
2 °F  
Set temperature  
MANUAL AUTO OPERATION  
Use the MANUAL AUTO operation in the event the remote control unit is lost or otherwise unavailable.  
CAUTION!  
How To Use the Main Unit Controls  
Do not press the MANUAL AUTO button with  
wet hands or pointed objects, otherwise an  
electric shock or malfunction may occur.  
Press the MANUAL AUTO button on the main unit control  
panel.  
To stop operation, press the MANUAL AUTO button once again.  
When the air conditioner is operated  
with the controls on the Main unit, it  
will operate under the same mode as  
the AUTO mode selected on the re-  
mote control unit (see page 7).  
The fan speed selected will be “AUTO”  
and the thermostat setting will be 73 °F.  
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CLEANING AND CARE  
Before cleaning the air conditioner, be sure to turn it off and disconnect the power supply.  
CAUTION!  
Be sure the intake grille is installed securely.  
When removing and replacing the air filters, be sure not to touch the heat exchanger, as per-  
sonal injury may result.  
Turn off the circuit breaker.  
Cleaning the Intake Grille  
1. Remove the intake grille.  
Cleaning the Air Filter  
1. Open the intake grille, and remove the air  
filter.  
1 Place your fingers at both lower ends of the grille  
panel, and lift forward; if the intake grille seems to  
catch partway through its movement, continue lifting  
Lift up the air filter’s handle, disconnect the two lower  
tabs, and pull out.  
upward to remove.  
Air filter handle  
Intake Grille  
Hooks (two places)  
2 Lift up the intake grille fully to remove.  
2. Remove dust with a vacuum cleaner or by  
washing.  
After washing, allow to dry thoroughly in a shady place.  
3. Replace the air filter and close the intake  
grille.  
1 Align the sides of the air filter with the panel, and push  
in fully, making sure the two lower tabs are returned  
properly to their openings in the panel.  
2. Clean with water.  
Remove dust with a vacuum cleaner; wipe the unit with  
warm water, then dry with a clean, soft cloth.  
3. Replace the intake grille.  
1 Holding the intake grille horizontally, fasten the two  
upper hooks on the unit.  
Hooks (two places)  
2 Close the intake grille.  
(In the illustration, the unit is shown without the intake grille  
installed.)  
Dust can be cleaned from the air filter either with a vacuum  
cleaner, or by washing the filter in a solution of mild de-  
tergent and warm water. If you wash the filter, be sure to  
allow it to dry thoroughly in a shady place before rein-  
stalling.  
Intake Grille  
2 Press the intake grille down at the lower sides to close.  
If dirt is allowed to accumulate on the air filter, air flow  
will be reduced, lowering operating efficiency and increas-  
ing noise.  
During periods of normal use, the air filters should be  
cleaned every two weeks.  
When using the optional Air Cleaning Filter  
Install the optional air cleaning filter set as instructed (installation instructions are furnished with the air cleaning filter set).  
When used for extended periods, the unit may accumulate dirt inside, reducing its performance. We recommend that the  
unit be inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service  
personnel.  
When cleaning the unit’s body, do not use water hotter than 100 °F, harsh abrasive cleansers, or volatile agents like  
benzene or thinner.  
Do not expose the unit body to liquid insecticides or hairsprays.  
When shutting down the unit for one month or more, first allow the fan mode to operate continuously for about one-half  
day to allow internal parts to dry thoroughly.  
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Cleaning the Intake Grille  
1. Open the Intake Grille.  
4. Set the mounting shaft of the Intake Grille  
into the bearings at the top of the panel.  
1 Place your fingers at both lower ends of the grille  
panel, and lift forward; if the grille seems to catch  
partway through its movement, continue lifting up-  
ward to remove.  
2 Pull past the intermediate catch and open the Intake  
Grille wide so that it becomes horizontal.  
1 Pull the Knobs all the way.  
2 Hold the grille horizontal and set the left and right  
mounting shafts into the bearings at the top of the  
panel.  
Mounting  
shaft  
Intake Grille  
Bearing  
Intake  
Grille  
Knob  
5. Lock the Intake Grille.  
2. Unlock the Intake Grille.  
Hold the Intake Grille with one hand and push the Knobs  
on the right and the left all the way in to lock the Intake  
Grille mounting shafts.  
Hold the Intake Grille with one hand and pull the Knobs  
on the right and the left all the way to unlock the Intake  
Grille.  
Intake Grille  
Intake Grille  
Mounting shaft  
Mounting shaft  
Knob  
Knob  
6. Close the Intake Grille.  
Raise the horizontal Intake Grille to remove it.  
Push the lower edge of the Intake Grille at both ends and  
at the center to close it.  
3. Clean with water.  
Remove dust with a vacuum cleaner: wipe the unit with  
warm water, then dry with a clean, soft cloth.  
Intake Grille  
CAUTION!  
Do not operate with open Intake Grille, as this can  
cause accidents.  
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TROUBLESHOOTING  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the cir-  
cuit breaker, and consult authorized service personnel.  
Merely turning off the unit’s power switch will not completely disconnect the unit from the power  
source. Always be sure to turn off your circuit breaker to ensure that power is completely off.  
WARNING!  
Before requesting service, perform the following checks:  
Symptom  
Problem  
See Page  
NORMAL  
FUNCTION  
Doesn’t operate immedi-  
ately:  
If the unit is stopped and then immediately started again, the com-  
pressor will not operate for about 3 minutes, in order to prevent  
fuse blowouts.  
Whenever the power switch is turned off then on again, the pro-  
tection circuit will operate for about 3 minutes, preventing unit  
operation during that period.  
Noise is heard:  
During operation and immediately after stopping the unit, the  
sound of water flowing in the air conditioner’s piping may be  
heard. Also, noise may be particularly noticeable for about 2 to 3  
minutes after starting operation (sound of coolant flowing).  
During operation, a slight squeaking sound may be heard. This is  
the result of minute expansion and contraction of the front cover  
due to temperature changes.  
*During Heating operation, a swoosh sound may be heard occa-  
sionally. This sound is produced by the Automatic Defrosting op-  
eration.  
15  
Odor:  
Occasionally an odor may be emitted from the indoor unit. This  
may be the result of room odors (furniture, tobacco, etc.) which  
have been taken into the air conditioner.  
Mist or steam are  
emitted:  
During Cooling or Dry operation, a thin mist may be seen emitted  
from the indoor unit. This results from the sudden Cooling of  
room air by the air emitted from the air conditioner, resulting in  
condensation and misting.  
*During Heating operation, the outdoor unit’s fan may stop, and  
steam may be seen rising from the unit. This is due to Automatic  
Defrosting operation.  
15  
Airflow is weak or stops:  
*When Heating operation is started, fan speed is temporarily very  
low, to allow internal parts to warm up.  
*During Heating operation, if the room temperature rises above  
the thermostat setting, the outdoor unit will stop, and the indoor  
unit will operate at very low fan speed. If you wish to warm the  
room further, set the thermostat for a higher setting.  
*During Heating operation, the unit will temporarily stop opera-  
tion (between 7 and 15 minutes) as the Automatic Defrosting mode  
operates. During Automatic Defrosting operation, the OPERATION  
indicator light will flash.  
15  
The fan may operate at very low speed during Dry operation or  
when the unit is monitoring the room’s temperature.  
6
6
In the monitor AUTO operation, the fan will operate at very low  
speed.  
Water is produced from  
the outdoor unit:  
*During Heating operation, water may be produced by the out-  
15  
door unit due to Automatic Defrosting operation.  
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TROUBLESHOOTING  
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).  
Symptom  
Items to check  
Has there been a power failure?  
See Page  
CHECK ONCE Doesn’t operate at all:  
MORE  
Has a fuse blown out, or a circuit breaker been tripped?  
8 to 9  
Is the timer operating?  
Is the air filter dirty?  
Poor Cooling  
(or *Heating)  
performance:  
Is the air conditioners intake grille or outlet port blocked?  
Did you adjust the room temperature settings (thermostat) cor-  
rectly?  
Is there a window or door open?  
In the case of Cooling operation, is a window allowing bright sun-  
light to enter? (Close the curtains.)  
In the case of Cooling operation, are there heating apparatus and  
computers inside the room, or are there too many people in the  
room?  
Are the remote control unit’s batteries dead?  
The unit operates  
differently from the  
remote control unit’s  
setting:  
Are the remote control unit’s batteries loaded properly?  
5
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator light flashes,  
immediately stop operation, disconnect the power supply, and consult authorized service personnel.  
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OPERATING TIPS  
Temperature and Humidity Range  
Cooling and Dry Mode  
95 °F DB / 71 °F WB  
64 °F DB / 55 °F WB  
115 °F DB  
Indoor temperature  
Maximum  
Minimum  
Outdoor temperature Maximum  
32 °F DB  
Minimum  
About 80 % or less  
Indoor humidity  
Outdoor  
Temperature  
68 °F or above  
If the unit is used for long periods under high-humidity conditions, condensation  
may form on the surface of the indoor unit, and drip onto the floor or other objects  
underneath.  
About 50 % or less  
Outdoor  
Temperature If the unit is used for long periods under high-humidity conditions, condensation  
below 68 °F  
may form on the surface of the indoor unit, and drip onto the floor or other objects  
underneath.  
DB : Dry Bulb Temperature  
WB : Wet Bulb Temperature  
If the air conditioner is used under higher temperature conditions than those listed, the built-in protection circuit may  
operate to prevent internal circuit damage. Also, during Cooling and Dry modes, if the unit is used under conditions of  
lower temperature than those listed above, the heat-exchanger may freeze, leading to water leakage and other damage.  
Do not use this unit for any purposes other than the Cooling, Dehumidifying, and air-circulation of rooms in ordinary  
dwellings.  
En-24  
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