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CONTENTS
SAFETY PRECAUTIONS ....................................... 2
FEATURES AND FUNCTIONS .............................. 3
NAME OF PARTS ................................................... 4
PREPARATION ....................................................... 6
OPERATION ........................................................... 7
TIMER OPERATION ............................................... 9
SLEEP TIMER OPERATION ................................. 10
ADJUSTING THE DIRECTION OF
AIR CIRCULATION ............................................... 11
SWING OPERATION ............................................ 12
ENERGY SAVE OPERATION ............................... 13
MANUAL AUTO OPERATION ............................. 13
CLEANING AND CARE ........................................ 14
TROUBLESHOOTING .......................................... 15
OPERATING TIPS................................................. 16
SAFETY PRECAUTIONS
● Before using the appliance, read these “PRECAUTIONS” thoroughly and operate in the correct way.
● The instructions in this section all relate to safety; be sure to maintain save operating conditions.
● “DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:
This mark indicates procedures which, if improperly performed, are most likely to
DANGER!
WARNING!
CAUTION!
result in the death of or serious injury to the user or service personnel.
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
● Do not attempt to install this air conditioner by yourself.
DANGER!
● This unit contains no user-serviceable parts. Always consult authorized service per-
sonnel for repairs.
● When moving, consult authorized service personnel for disconnection and installa-
tion of the unit.
● Do not become over-exposed to cold air by staying in the direct path of the airflow of
the air conditioner for extended periods of time.
● Do not insert fingers or objects into the outlet port or intake grilles.
● Do not start and stop air conditioner operation by turning off the electrical breaker
and so on.
● In the event of a malfunction (burning smell, etc.), immediately stop operation, turn
off the electrical breaker, and consult authorized service personnel.
● Provide occasional ventilation during use.
CAUTION!
● Do not direct air flow at fireplaces or heating apparatus.
● Do not climb on, or place objects on, the air conditioner.
● Do not hang objects from the indoor unit.
● Do not set flower vases or water containers on top of air conditioners.
● Do not expose the air conditioner directly to water.
● Do not operate the air conditioner with wet hands.
● Turn off power source when not using the unit for extended periods.
● Always turn off the electrical breaker whenever cleaning the air conditioner or chang-
ing the air filter.
● Connection valves become hot during Heating; handle with care.
● Check the condition of the installation stand for damage.
● Do not place animals or plants in the direct path of the air flow.
● When restarting after a long period of disuse in the winter:
turn the power switch on at least 12 hours before starting the unit.
● Do not drink the water drained from the air conditioner.
● Do not use in applications involving the storage of foods, plants or animals, precision
equipment, or art works.
● Do not apply any heavy pressure to radiator fins.
● Operate only with air filters installed.
● Do not block or cover the intake grille and outlet port.
● Ensure that any electronic equipment is at least one meter away from either the in-
door or outdoor units.
● Avoid installing the air conditioner near a fireplace or other heating apparatus.
● When installing the indoor and outdoor unit, take precautions to prevent access to infants.
● Do not use inflammable gases near the air conditioner.
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FEATURES AND FUNCTIONS
AUTOMATIC OPERATION
● COOLING MODEL
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.
● 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.
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.
MILDEW-RESISTANT FILTER
The AIR FILTER has been treated to resist mildew growth,
thus allowing cleaner use and easier care.
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NAME OF PARTS
Instructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Fig. 1
1
7 6 5 4
9
0
MANUAL
AUTO
SWING SWING TIMER OPERATION
3
2
Fig. 2
8
Fig. 4
A
Electrical Breaker
A
B
This breaker is installed during
the electrical installation.
Fig. 3
Fig. 5
F
G
SLEEP
TIMER
Q
R
C
CLOCK
AUTO
COOL
MASTER
SET SET
FAN
CLOCK
AM
PM
OFF
TIMER SLEEP
ON
OFF
ON TIMER RESET
CONTROL TEMP. TIME CONTROL
S
U
V
H
I
D
E
H
M
ENERGY SAVE
A
START
STOP
AUTO
AUTO
COOL
DRY
FAN
HEAT
HIGH
MED
LOW
J
*
W
X
Y
T
SET
SWING
K
SET
SWING
N
O
P
Fig. 7
TIME TEST
ENERGY
SAVE
ADJUST RUN ACL
L
M
Fig. 6
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Fig. 1 Indoor Unit
Fig. 5 Remote Control Unit
1 Operating Control Panel (Fig. 2)
2 MANUAL AUTO button
C SLEEP Button
D MASTER CONTROL Button
E SET TEMP./SET TIME Buttons (
F Signal Transmitter
3 Remote Control Signal Receiver
4 OPERATION Indicator Light (red)
5 TIMER Indicator Light (green)
6 SWING Indicator Light (orange)
(HORIZONTAL SWING)
)
G TIMER Button
H FAN CONTROL Button
I START/STOP Button
J Battery compartment lid
7 SWING Indicator Light (orange)
(VERTICAL SWING)
Inside of the battery compartment lid (Fig. 6)
K AIR FLOW DIRECTION Button
L ENERGY SAVE Button
M 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 17 Auto Restart).
8 Intake Grille
9 UP/DOWN Air Direction Flap
0 RIGHT/LEFT Air Direction Louvers
(behind UP/DOWN Air Direction Flap)
N TIME ADJUST Button
O TEST RUN Button
● 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.
Fig. 4 Outdoor Unit
● 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.
A Intake side
B Outlet side
P ACL Button
Q Remote Control Unit Display (Fig. 7)
R Transmit Indicator
S Clock Display
T Operating Mode Display
U Timer Mode Display
V Fan Speed Display
W Temperature Set Display
X Timer Set Indicator
Y Temperature Set Indicator
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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.
● 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.
Press and slide the battery compartment lid to open it.
1
Insert batteries.
Be sure to align the battery polarities (
2
3
) correctly.
Close the battery compartment lid.
Set the Current time
● Do not attempt to recharge dry batteries.
Press the TIME ADJUST button.
Never mix new and used batteries, or
batteries of different types.
1
Use the tip of a ball-point pen or other small object to press the button.
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.
Use the (
)SET TIME buttons to adjust the clock to
2
3
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 increments.)
SET
SWIN
SET
SWING
Press the TIME ADJUST button again.
This completes the time setting and starts the clock.
TIME EST
ENERGY
SAVE
ADJUST RUN ACL
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 is a obstacle.)
● 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
Insert
Slide up
Screws
1 Mount the Holder.
2 Set the Remote
3 To remove the Remote
Control Unit.
Control Unit.
For Wall Mount Use
Insert
Slide
Screws
Screw
2 Set the Remote
1 Mount the Holder.
3 Attach the unit to the
Control Unit.
holder as shown.
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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.
The indoor unit’s OPERATION indicator light (red) will be on.
1
The air conditioner will start operating.
COOL
Press the MASTER CONTROL button to select the de-
2
sired mode.
MASTER
SET SET
FAN
CONTROL TEMP. TIME CONTROL
Each time the button is pressed, the mode will change in the following
order.
c
c
c
AUTO
COOL
DRY
d
d
*HEAT
FAN
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:
AUTO .................................. 64 to 88 °F
MASTER
SET SET
FAN
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:
c
c
c
c
AUTO
HIGH
MED
LOW
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.
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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
Cooling Operation
higher than the set temperature, the
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 7 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 7 for
instructions on changing the mode setting (HEAT, COOL, DRY, FAN).
*Heating:
● Use to warm your room.
* 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 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.
● 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.
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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 6).
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.
c
c
c
RESET
OFF
ON
PROGRAM(OFF → ON, OFF ← ON) d
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 five 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
operation (either OFF → ON or OFF ← ON will display).
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.)
3
To Change the Timer Settings
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.
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 unit’s OPERATION indicator light (red) and the TIMER indicator
light (green) will turn on.
COOL
MASTER
SET SET
FAN
To Change the Timer Settings
CONTROL TEMP. TIME CONTROL
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 heating 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 Heating operation:
During Cooling/Dry operation:
When the SLEEP timer is set, the thermostat setting is
automatically lowered 2 °F every thirty minutes. When the
thermostat has been lowered a total of 8 °F, the thermostat
setting at that time is maintained until the set time has elapsed,
at which time the air conditioner automatically turns off.
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
SLEEP timer setting
2 °F
4 °F
6 °F
8 °F
Set time
30
minutes
1 hour
1 hour
4 °F
2 °F
1 hour
30 minutes
Set time
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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 port 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:
● Always use the remote control unit’s
1
2
3
4
5
AIR FLOW DIRECTION button to adjust
the UP/DOWN air direction flap 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 During Cooling/Dry Modes
1,2,3,4,5 : *During Heating mode
:
1
2
The remote control unit’s display does
not change.
3
4
● During use of the Cooling and Dry
modes, do not set the UP/DOWN air
direction flap in the range 4 to 5 for
long periods of time, since water vapor
may condense near the outlet port and
drops of water may drip from the air
conditioner.
Fig. 8
5
● 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.
● 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.
Horizontal flow 1
Downward flow 5
:
During Cooling/Dry mode
: * During Heating mode
● 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.
Horizontal Air Direction Adjustment
SET
SWING
SET
SWING
Press the AIR FLOW DIRECTION HORIZONTAL SET button .
Each time the button is pressed, the air direction range will change as follows:
TIME TEST
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
1
2
3
5
4
TIME E
ENERGY
SAVE
ADJUST
Example: When set to horizontal air di-
rection
Fig. 9
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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 flap 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 Vertical Airflow Swing Operation
● The range of swing is relative to the currently set airflow
● 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.
direction.
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
1 to 3
2 to 4
3 to 5
1 to 5 (All range)
● During use of the Cooling and Dry modes, do not set the
air UP/DOWN direction flap, in the Heating range (4 to
5) for long periods of time, since water vapor may con-
dense near the outlet port and drops of water may drip
from the air conditioner.
Air direction range (See page 11, Fig. 8)
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 Horizontal Airflow Swing Operation
● The range of swing is relative to the currently set airflow
● 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.
direction.
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 11, Fig.9)
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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 Heating operation:
During Cooling/Dry operation:
The thermostat temperature setting decreases by 2 °F as
soon as the ENERGY SAVE button is pressed, and then de-
creases by another 2 °F every thirty minutes.
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 heat at a
thermostat temperature of 8 °F less than the setting.
In this manner, energy is saved by continuing to cool or dry
at a thermostat temperature of 4 °F more than the setting.
ENERGY SAVE setting
ENERGY SAVE setting
Set temperature
2 °F
4 °F
6 °F
8 °F
1 hour
ENERGY
SAVE ON
ENERGY
SAVE ON
30 minutes
1 hour
4 °F
2 °F
Set temperature
1 hour 30 minutes
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 on the main unit operating
CAUTION!
control panel.
To stop operation, press the MANUAL AUTO button once again.
Do not press the MANUAL AUTO but-
ton with wet hands or pointed objects,
otherwise an electric shock or malfunc-
tion may occur.
● 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 8).
● 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.
● Turn off the electrical breaker.
CAUTION!
Cleaning the Air Filter
3. Re-attach the air filters to the intake grille.
1. Pull the air filters upward to remove them.
Remove the air filters by raising its handle while pulling
it out towards you.
The air filters fit onto the inside of the intake grille.
● 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.
Air filter
● 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 four weeks.
2. Clean the air filters.
Remove the dust from the air filters by vacuuming or
washing them. After washing, allow the air filters to dry
thoroughly in an area protected from sunlight.
● 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.
● If the unit will not be operated for a period of one month or more, be sure to allow the inner parts of the unit to dry
thoroughly, in advance, by operating the unit in fan mode for half a day.
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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 elec-
trical 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 the electrical breaker to ensure that power is completely off.
WARNING!
Before requesting service, perform the following checks:
Symptom
See Page
Problem
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.
16
—
—
Odor:
● Occasionally an odor may be emitted from the indoor unit. This
may be the result of room odor (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.
16
—
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.
16
● The fan may operate at very low speed during Dry operation or
7
7
when the unit is monitoring the room’s temperature.
● 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-
16
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).
Items to check
Symptom
See Page
● Is the power supply plug disconnected from its outlet?
● Has there been a power failure?
CHECK ONCE Doesn’t operate at all:
MORE
—
● Has a fuse blown out, or a circuit breaker been tripped?
● Is the timer operating?
9 to 10
Poor Cooling (or *Heating)
performance:
● Is the air filter dirty?
● Is the air conditioner’s 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?
The unit operates differ-
ently from the remote con-
trol unit’s setting:
● Are the remote control unit’s batteries dead?
● Are the remote control unit’s batteries loaded properly?
6
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator light flashes, stop
operation immediately, disconnect the power supply, and consult with authorized service personnel.
OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Operation and Performance
*Heating Performance
*Microcomputer-controlled Automatic Defrosting
● This air conditioner operates on the heat-pump principle,
absorbing heat from outdoor air and transferring that heat
indoors. As a result, the operating performance is reduced
as outdoor air temperature drops. If you feel that insuffi-
cient heating performance is being produced, we recom-
mend you use this air conditioner in conjunction with
another kind of heating appliance.
● When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating per-
formance.
In order to minimize this kind of reduced performance,
this unit is equipped with a Microcomputer-controlled Au-
tomatic Defrosting function. If excessive frost forms, the
air conditioner will temporarily stop, and the defrosting
circuit will operate briefly (for about 4 to 15 minutes).
● Heat-pump air conditioners heat your entire room by
recirculating air throughout the room, with the result that
some time may be required after first starting the air con-
ditioner until the room is properly heated.
During Automatic Defrosting operation, the OPERATION
indicator light (red) will flash.
*When Indoor and Outdoor Temperature are High
Low Ambient Cooling
● When both indoor and outdoor temperatures are high
during use of the heating mode, the outdoor unit’s fan
may stop at times.
● When the outdoor temperature drops, the outdoor unit’s
one of the fans may stop intermittently.
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OPERATING TIPS
AUTO Restart
In Event of Power Interruption
● Should the power supply to the air conditioner be inter-
rupted by a power failure, the air conditioner will restart
automatically in the previously selected mode once the
power is restored.
● Use of other electrical appliances (electric shaver, etc.) or
nearby use of a wireless radio transmitter may cause the
air conditioner to malfunction. In this event, temporarily
disconnect the power supply, reconnect it, and then use
the remote control unit to resume operation.
● Should a power failure occur during TIMER operation,
the timer will be reset and the unit will begin (or stop)
operating under the new timer setting. In this event, the
TIMER indicator light (green) will flash (see page 5).
Temperature and Humidity Range
Cooling/Dry Mode
*Heating Mode
Outdoor temperature
COOLING MODEL
About 32 to 115 °F
—
HEAT & COOL MODEL
(Reverse Cycle)
About 32 to 115 °F
About 65 to 90 °F
About 32 to 75 °F
About 86 °F or less
Indoor temperature
Indoor humidity
About 80 % or less
If the unit is used for long pe-
riods under high-humidity
conditions, condensation
may form on the surface of
the indoor unit, and drip onto
the floor or other objects un-
derneath.
—
● If the air conditioner is operated 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 temperatures than those listed above, the heat-exchanger may freeze, leading to water leakage and other damage.
● The operation is not guaranteed under the condition where the fan blade is not lotating, or blocked by ice. If the temperature
is below 32 °F, the optional separate device may be required.
● Do not use this unit for any purposes other than the Cooling, (*)Heating, Dehumidifying, and air-circulation of rooms in
ordinary dwellings.
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