OPERATING MANUAL
ROOM AIR CONDITIONER
FLOOR CONSOLE/
UNDER CEILING DUAL TYPE
COOLING MODEL
COOLING MODEL
Indoor Unit
ABU22
Outdoor Unit
AOU22
KEEP THIS OPERATION MANUAL
FOR FUTURE REFERENCE
P/N9359944010
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FEATURES AND FUNCTIONS
AUTOMATIC OPERATION
● COOLING MODEL
Merely press the START/STOP button, and the unit will
begin autom atic operation in the Cooling or Dry m ode as
appropriate, in accordance with the therm ostat setting
and the actual tem perature of the room .
● HEAT & COOL MODEL (REVERSE CYCLE)
Merely press the START/STOP button, and the unit will
begin autom atic operation in either the Heating, Cooling
or Monitor m odes as appropriate, in accordance with the
therm ostat setting and the actual tem perature of the
room .
SLEEP TIMER
● COOLING MODEL
When the SLEEP tim er button is pressed during Cooling
or Dry m ode, the therm ostat setting is gradually raised
during the period of operation. When the set tim e is
reached, the unit autom atically turns off.
● HEAT & COOL MODEL (REVERSE CYCLE)
When the SLEEP tim er button is pressed during Heating
m ode, the air conditioner’s therm ostat setting is gradu-
ally lowered during the period of operation; during Cool-
ing or Dry m ode, the therm ostat setting is gradually raised
during the period of operation. When the set tim e is
reached, the unit autom atically 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-dim ensional 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 autom atically according to the oper-
ating m ode of the unit, it is possible to set air direction based
on the operating m ode.
MILDEW-RESISTANT FILTER
The AIR FILTER has been treated to resist m ildew 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
Fig. 2
Fig. 4
Fig. 3
Fig. 5
I
SLEEP
TIMER
T
U
F
J
CLOCK
AUTO
COOL
MASTER
SET SET
FAN
CLOCK
AM
TIMER SLEEP
ON
CONTROL TEMP. TIME CONTROL
V
X
Y
K
L
G
H
PM
H
M
OFF
OFF
ON TIMER RESET
ENERGY SAVE
A
START
STOP
AUTO
AUTO
COOL
DRY
FAN
HEAT
HIGH
MED
LOW
M
*
Z
[
\
W
SET
SWING
N
SET
SWING
Q
R
S
Fig. 7
TIME TEST
ENERGY
SAVE
ADJUST RUN ACL
O
P
Fig. 6
En-4
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Fig. 1 Indoor Unit
Fig. 5 Remote Control Unit
1 Operating Control Panel (Fig. 2)
2 MANUAL AUTO button
F SLEEP Button
G MASTER CONTROL Button
H SET TEMP./SET TIME Buttons (
I Signal Transmitter
3 Remote Control Signal Receiver
4 OPERATION Indicator Light (red)
5 TIMER Indicator Light (green)
6 SWING Indicator Light (orange)
(VERTICAL SWING)
)
J TIMER Button
K FAN CONTROL Button
L START/STOP Button
M Battery compartment lid
7 SWING Indicator Light (orange)
(HORIZONTAL SWING)
Inside of the battery compartment lid (Fig. 6)
N AIR FLOW DIRECTION Button
O ENERGY SAVE Button
● If the TIMER indicator light flashes when
the tim er is operating, it indicates that a
fault has occurred with the tim er setting
P CODE CHANGE (Slide Switch)
Switching the rem ote control unit code.
(Max. 4 units)
(See page 17 Auto Restart).
8 Intake Grille (Fig. 3)
9 Air Filter
Q TIME ADJUST Button
0 UP/DOWN Air Direction Flaps
A RIGHT/LEFT Air Direction Louvers
(behind UP/DOWN Air Direction Flaps)
B Drain Hose
R TEST RUN Button
● This button is used when installing the air
conditioner and should not be used under
norm al conditions as it will cause the air
conditioner’s therm ostat function to oper-
ate incorrectly.
● If this button is pressed during norm al op-
eration, the unit will switch to test opera-
tion m ode, and the indoor unit’s OPERA-
TION indicator light and TIMER indicator
light will begin to flash sim ultaneously.
● To stop the test operation m ode, either
press the TEST RUN button once again, or
press the START/STOP button to stop the
air conditioner.
Fig. 4 Outdoor Unit
C Intake Side
D Outlet Side
E Pipe Unit
S ACL Button
T Remote Control Unit Display (Fig. 7)
U Transmit Indicator
V Clock Display
W Operating Mode Display
X Timer Mode Display
Y Fan Speed Display
Z Temperature Set Display
[ Timer Set Indicator
\ Temperature Set Indicator
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PREPARATION
CAUTION!
Turn on the Power
● Take care to prevent infants from
accidentally swallowing batteries.
● When not using the rem ote control unit
for an extended period, rem ove the
batteries to avoid possible leakage and
dam age to the unit.
Turn on the circuit breaker.
Load Batteries (R03/LR03/AAA × 4)
● If leaking battery fluid com es in contact
with your skin, eyes, or m outh, im m edi-
ately wash with copious am ounts of
water, and consult your physician.
● Dead batteries should be rem oved
im m ediately and disposed of properly,
either in a battery collection receptacle
or to the appropriate authority.
Slide the battery compartment lid to open it.
1
Insert batteries.
Be sure to align the battery polarities (
2
3
) correctly.
● Do not attem pt to recharge dry batteries.
Close the battery compartment lid.
Never m ix new and used batteries, or
batteries of different types.
Batteries should last about one year
under norm al use. If the rem ote control
unit’s operating range becom es appre-
ciably reduced, replace the batteries and
press the ACL button with the tip of a
ballpoint pen or other sm all object.
Set the Current time
Press the TIME ADJUST button.
Use the tip of a ball-point pen or other sm all object to press the button.
1
Use the (
)SET TIME buttons to adjust the clock to
2
3
the current time.
button: Press to advance the time.
SET
SWIN
SET
SWING
button: Press to reverse the time.
(Each tim e the buttons are pressed, the tim e will be advanced/reversed in
one-m inute increm ents; hold the buttons depressed to change the tim e
quickly in ten-m inute increm ents.)
TIME EST
ENERGY
SAVE
ADJUST RUN ACL
Press the TIME ADJUST button again.
This com pletes the tim e setting and starts the clock.
To Use the Remote Control Unit
● The rem ote control unit m ust be pointed at signal receiver to operate correctly.
● Maxim um operating range: Approxim ately 10 m eters. (This m ay 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 rem ote control unit button again.
Remote Control Unit Holder
For Wall Mount use
For Hand-Held use
Insert
Insert
Slide up
Slide
Screws
Screws
Screw
1 Mount the Holder. 2 Set the Remote
3 Attach the unit to
the holder as
shown.
1 Mount the Holder. 2 Set the Remote
3 To remove the
Remote Control
Unit.
Control Unit.
Control Unit.
En-6
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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 tim e the button is pressed, the m ode 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
Press the SET TEMP. buttons.
button: Press to raise the therm ostat setting.
button: Press to lower the therm ostat setting.
SLEEP
TIMER
●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 therm ostat cannot be used to set room tem perature during the FAN m ode (the
tem perature will not appear on the rem ote control unit’s display).
About three seconds later, the entire display will reappear.
Example: When set to 82 °F
The therm ostat setting should be considered a standard value, and m ay differ
som ewhat from the actual room tem perature.
To Set the Fan Speed
SLEEP
TIMER
Press the FAN CONTROL button.
Each tim e 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 optim ally circulate warm air.
However, the fan will operate at very low speed when the tem perature
of the air from the indoor unit is low.
Cooling : As the room tem perature approaches that of the therm ostat setting,
the fan speed becom es 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 m ode.
To Stop Operation
Press the START/STOP button.
The OPERATION indicator light (red) will turn off.
En-7
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OPERATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
About Mode Operation
AUTO:
COOLING MODEL
● Wh e n th e ro o m te m p e ra tu re is 4 °F
Cooling Operation
higher than the set tem perature, the
m ode will switch between Cooling and
Drying.
Dry Operation
Therm ostat control
● During the Drying m ode operation, the
FAN setting should be switched to LOW
for a gently cooling effect during which
the fan m ay tem porarily stop rotating.
4 °F
● If the m ode autom atically selected by the
Setting tem perature
unit is not satisfactory, see page 7 for in-
structions on changing the m ode 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 m ode (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 m inute while the unit determ ines the current conditions of the
room and accordingly selects the proper operation m ode.
● When the air conditioner has adjusted your room ’s tem perature to near the ther-
m ostat setting, it will begin m onitor operation. In the m onitor operation m ode,
the fan will operate at low speed. If the room tem perature subsequently changes,
the air conditioner will once again select the appropriate operation (Heating, Cool-
ing) to adjust the tem perature to the value set in the therm ostat. (The m onitor
operation range is ±4 °F relative to the therm ostat setting.)
● If the m ode autom atically selected by the unit is not satisfactory, see page 7 for
instructions on changing the m ode setting (HEAT, COOL, DRY, FAN).
*Heating:
● Use to warm your room .
* During Heating mode:
Set the therm ostat to a tem perature set-
ting that is higher than the current room
tem perature. The Heating m ode will not
operate if the therm ostat is set lower than
the actual room tem perature.
● When Heating m ode is selected, the air conditioner will operate at very low fan
speed for about 3 to 5 m inutes, after which it will switch to the selected fan set-
ting. This period of tim e is provided to allow the indoor unit to warm up before
begin full operation.
● When the room tem perature is very low, frost m ay form on the outside unit, and
its perform ance m ay be reduced. In order to rem ove such frost, the unit will
autom atically enter the defrost cycle from tim e to tim e. During Autom atic De-
frosting operation, the OPERATION indicator light (red) will flash, and the heat
operation will be interrupted.
During Cooling/Dry mode:
Set the therm ostat to a tem perature set-
ting that is lower than the current room
tem perature. The Cooling and Dry m odes
will not operate if the therm ostat is set
higher than the actual room tem perature
(in Cooling m ode, 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 m ode.
Dry:
● Use for gently cooling while dehum idifying your room .
● You cannot heat the room during Dry m ode.
● During Dry m ode, the unit will operate at low speed; in order to adjust room
hum idity, the indoor unit’s fan m ay stop from tim e to tim e. Also, the fan m ay
operate at very low speed when detecting room hum idity.
● The fan speed cannot be changed m anually when Dry m ode has been selected.
Fan:
● Use to circulate the air throughout your room .
En-8
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TIMER OPERATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Before using the tim er function, be sure that the rem ote control unit is set to the current tim e (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 tim e the button is pressed the tim er 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 norm al
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 tim e while the tim e 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 tim e.
button: Press to reverse the tim e.
conditions (Mode, Fan Speed, Therm ostat
Setting), after m aking the tim er 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 tim er or OFF tim er” to set the desired
To Cancel the Timer
m ode and tim es.
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 norm al
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 tim er” and “ON tim er”, then change
to show the tim e setting for the operation to occur first.
● The PROGRAM tim er will begin operation. (If the ON tim er 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 Tim er or OFF Tim er” to se-
lect the tim er 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, Therm ostat
Setting), after m aking the tim er setting,
wait until the entire display reappears, then
press the appropriate buttons to change to
the desired operating condition.
En-9
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TIMER OPERATION
About the PROGRAM timer
About the ON timer
● The PROGRAM tim er allows you to integrate OFF tim er
and ON tim er operations in a single sequence. The se-
quence can involve one transition from OFF tim er to ON
tim er, or from ON tim er to OFF tim er, within a twenty-
four hour period.
● The tim er function is designed to bring your room to a
com fortable tem perature by the set tim e; as a result, the
unit autom atically begins operation before the set tim e
so that the room reaches the desired tem perature by the
tim e set on the tim er (“Nice-Morning Tim er”).
● The first tim er function to operate will be the one set near-
est to the current tim e. The order of operation is indi-
cated by the arrow in the rem ote control unit’s display
(OFF → ON, or OFF ← ON).
● The hotter it is in sum m er, or the colder it is in winter, the
earlier that operation will begin.
* During Heating Operation ....... from 45 to 10 m inutes be-
fore set tim e.
● One exam ple of PROGRAM tim er use m ight be to have
the air conditioner autom atically stop (OFF tim er) after
you go to sleep, then start (ON tim er) autom atically in
the m orning before you rise.
During Cooling/Dry Operation ... from 20 to 10 m inutes be-
fore set tim e.
During Fan Operation .............. at the set tim e.
SLEEP TIMER OPERATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Unlike other tim er functions, the SLEEP tim er is designed to set the duration of tim e 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 tim e while the Tim er 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 norm al
operation.
button: Press to advance the tim e.
button: Press to reverse the tim e.
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 warm ing or cooling during sleep, the SLEEP tim er function autom atically m odifies the therm ostat setting
in accordance with the tim e setting. When the set tim e has elapsed, the air conditioner com pletely stops.
*During Heating operation:
During Cooling/Dry operation:
When the SLEEP tim er is set, the therm ostat setting is
autom atically lowered 2 °F every thirty m inutes. When the
therm ostat has been lowered a total of 8 °F, the therm ostat
setting at that tim e is m aintained until the set tim e has elapsed,
at which tim e the air conditioner autom atically turns off.
When the SLEEP tim er is set, the therm ostat setting is auto-
m atically raised 2 °F every sixty m inutes. When the therm o-
stat has been raised a total of 4 °F, the therm ostat setting at
that tim e is m aintained until the set tim e has elapsed, at which
tim e the air conditioner autom atically turns off.
SLEEP timer setting
SLEEP timer setting
2 °F 4 °F 6 °F 8 °F
Set tim e
30
minutes
1 hour
1 hour
2 °F
4 °F
1 hour
30 m inutes
Set tim e
En-10
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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 rem ote control unit’s AIR FLOW DIRECTION VERTICAL SET
button. Horizontal (right-left) direction of airflow is adjusted by pressing the rem ote 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-
Press the AIR FLOW DIRECTION VERTICAL SET button .
Each tim e the button is pressed, the air direction range will change as follows:
ates at high speed and could cause personal
injury.
1
2
3
4
5
6
7
● Always use the rem ote control unit’s
AIR FLOW DIRECTION button to adjust
the UP/DOWN air direction flaps or
RIGHT/LEFT air direction louvers. At-
te m p tin g to m o ve th e m m a n u a lly
could result in im proper 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 m ode
The rem ote control unit’s display does
not change.
Fig. 8
● During use of the Cooling and Dry
m odes, do not set the UP/DOWN air
direction flaps in the Heating range (5
to 7) for long periods of tim e, since
water vapor m ay condense near the
outlet louvers and drops of water m ay
drip from the air conditioner.
● Use the air direction adjustm ents within the ranges shown above.
● The vertical airflow direction is set autom atically as shown, in accordance with
the type of operation selected.
During Cooling/Dry m ode : Horizontal flow 1
* During Heating m ode
: Downward flow 7
● When used in a room with infants, chil-
dren, elderly or sick persons, the air
d ire ctio n a n d ro o m te m p e ra tu re
should be considered carefully when
adjusting settings.
● During AUTO m ode operation, for the first m inute 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 tim e the button is pressed, the air direction range will change as follows:
TIME TEST
DJUST RUN ACL
1
2
3
4
5
The rem ote control unit’s display does
not change.
Example: When set to vertical air direc-
tion
RIGHT/LEFT air direction louvers
● Use the air direction adjustm ents within the ranges shown above.
SET
SWING
SET
SWING
TIME E
ENERGY
SAVE
ADJUST
Example: When set to horizontal air di-
rection
Fig. 9
En-11
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SWING OPERATION
Begin air conditioner operation before perform ing 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 m ode, the UP/DOWN air direction flaps will swing autom atically to direct the
air flow both up and down.
SET
SWING
SET
SWING
TTEST
ENERGY
SAVE
UN ACL
To Stop Vertical airflow SWING Operation
Press the AIR FLOW DIRECTION VERTICAL SWING button
once again.
Example: When set to vertical swing
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 rem ote 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
1
2
3
4
5
6
7
● The SWING operation m ay stop tem porarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
1 to 4
2 to 5
3 to 6
● During use of the Cooling and Dry m odes, do not set the
air UP/DOWN direction flaps, in the Heating range (5 to
7) for long periods of tim e, since water vapor m ay con-
dense near the outlet louvers and drops of water m ay
drip from the air conditioner.
4 to 7
5 to 7
1 to 7 (All range)
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 m ode, the RIGHT/LEFT air direction louvers will swing autom atically 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
● If the swing range is not as desired, use the rem ote 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 m ay stop tem porarily 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)
En-12
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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 consum ption 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.
TIME TEST
ENERGY
SAVE
ADJUST RUN ACL
1
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 therm ostat tem perature setting.
*During Heating operation:
During Cooling/Dry operation:
The therm ostat tem perature setting decreases by 2 °F as
soon as the ENERGY SAVE button is pressed, and then de-
creases by another 2 °F every thirty m inutes.
The therm ostat tem perature 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 m anner, energy is saved by continuing to heat at a
therm ostat tem perature of 8 °F below the setting.
In this m anner, energy is saved by continuing to cool or dry
at a therm ostat tem perature of 4 °F above the setting.
ENERGY SAVE setting
ENERGY SAVE setting
Set tem perature
6 °F
2 °F
4 °F
8 °F
1 hour
ENERGY
SAVE ON
ENERGY
SAVE ON
2 °F
4 °F
30 m inutes
1 hour
Set tem perature
1 hour 30 m inutes
MANUAL AUTO OPERATION
Use the MANUAL AUTO operation in the event the rem ote control unit is lost or otherwise unavailable.
How To Use the Main Unit Controls
Press the MANUAL AUTO button on the main unit control
● When the air conditioner is operated
with the controls on the Main unit, it
will operate under the sam e m ode as
the AUTO m ode selected on the re-
m ote control unit (see page 8).
panel.
To stop operation, press the MANUAL AUTO button once again.
● Th e fa n s p e e d s e le cte d w ill b e
“AUTO” and the therm ostat setting
will be 74 °F.
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CLEANING AND CARE
● Before cleaning the air conditioner, be sure to turn it off and turn off the electrical breaker.
CAUTION!
● Be sure the intake grille is installed securely.
● When rem oving and replacing the air filters, be sure not to touch the heat exchanger, as per-
sonal injury m ay result.
Cleaning the Air Filter
1. Pull out both sides and the center of the
intake grille.
4. Re-attach the air filters to the intake grille.
1 The air filters fit onto the inside of the intake grille.
(figure 1)
2 The bottom edges of the air filters should fit into the
filter brackets. (figure 1)
3 The air filters should be pushed down so that their
top edges fit under the projections at the top of the
intake grille. (figure 2)
About 30 m m
Air Filter
Side Panel
Hook
(Figure 1)
(Figure 2)
Notch
Arm
Arm
Intake Grille
Filter bracket
2. Pull the air filters upward to remove them.
Push the air filter handles away from the intake grille in
direction 1, then pull out the air filters.
5. Push in both sides and the center of the
intake grille.
1
Air Filter
Bracket
Base
Handle
Intake Grille
● Dust can be cleaned from the air filter either with a vacuum
cleaner, or by washing the filter in a solution of m ild 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.
3. Clean the air filters.
Rem ove the dust from the air filters by vacuum ing or
washing them . After washing, allow the air filters to dry
thoroughly in an area protected from sunlight.
● If dirt is allowed to accum ulate on the air filter, air flow
will be reduced, lowering operating efficiency and increas-
ing noise.
● During periods of norm al use, the air filters should be
cleaned every two weeks.
● When used for extended periods, the unit m ay accum ulate dirt inside, reducing its perform ance. We recom m end that the
unit be inspected regularly, in addition to your own cleaning and care. For m ore inform ation, 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 m onth or m ore, be sure to allow the inner parts of the unit to dry
thoroughly, in advance, by operating the unit in fan m ode 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 m alfunction (burning sm ell, etc.), im m ediately stop operation, turn off the elec-
WARNING!
trical breaker, and consult authorized service personnel.
Merely turning off the unit’s power switch will not com pletely disconnect the unit from the power
source. Always be sure to turn off the electrical breaker to ensure that power is com pletely off.
Before requesting service, perform the following checks:
Symptom
See Page
Problem
NORMAL
FUNCTION
Doesn’t operate im m edi-
ately:
● If the unit is stopped and then im m ediately started again, the com -
pressor will not operate for about 3 m inutes, in order to prevent
fuse blowouts.
—
● Whenever the power supply is disconnected and then recon-
nected, the protection circuit will operate for about 3 m inutes,
preventing unit operation during that period.
Noise is heard:
● During operation and im m ediately after stopping the unit, the
sound of water flowing in the air conditioner’s piping m ay be
heard. Also, noise m ay be particularly noticeable for about 2 to 3
m inutes after starting operation (sound of coolant flowing).
—
● During operation, a slight squeaking sound m ay be heard. This is
the result of m inute expansion and contraction of the front cover
due to tem perature changes.
*● During Heating operation, a swoosh sound m ay be heard occa-
sionally. This sound is produced by the Autom atic Defrosting op-
eration.
16
—
—
Odor:
● Occasionally an odor m ay be em itted from the indoor unit. This
m ay be the result of room odors (furniture, tobacco, etc.) which
have been taken into the air conditioner.
Mist or steam are
em itted:
● During Cooling or Dry operation, a thin m ist m ay be seen em itted
from the indoor unit. This results from the sudden Cooling of
room air by the air em itted from the air conditioner, resulting in
condensation and m isting.
*● During Heating operation, the outdoor unit’s fan m ay stop, and
steam m ay be seen rising from the unit. This is due to Autom atic
Defrosting operation.
16
—
Airflow is weak or stops:
*● When Heating operation is started, fan speed is tem porarily very
low, to allow internal parts to warm up.
*● During Heating operation, if the room tem perature rises above
the therm ostat 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 therm ostat for a higher setting.
*● During Heating operation, the unit will tem porarily stop opera-
tion (between 7 and 15 m inutes) as the Autom atic Defrosting m ode
operates. During Autom atic Defrosting operation, the OPERATION
indicator light will flash.
16
● The fan m ay operate at very low speed during Dry operation or
7
7
when the unit is m onitoring the room ’s tem perature.
● In the m onitor AUTO operation, the fan will operate at very low
speed.
Water is produced from
the outdoor unit:
*● During Heating operation, water m ay be produced by the out-
16
door unit due to Autom atic Defrosting operation.
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Items to check
● Has there been a power failure?
Symptom
See Page
CHECK ONCE Doesn’t operate at all:
MORE
—
● Has a fuse blown out, or a circuit breaker been tripped?
● Is the tim er operating?
9 to 10
Poor Cooling (or *Heating)
perform ance:
● Is the air filter dirty?
● Is the air conditioner’s intake grille or outlet port blocked?
● Did you adjust the room tem perature settings (therm ostat) 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
com puters inside the room , or are there too m any people in the
room ?
The unit operates differ-
ently from the rem ote con-
trol unit’s setting:
● Are the rem ote control unit’s batteries dead?
● Are the rem ote control unit’s batteries loaded properly?
6
If the problem persists after perform ing these checks, or if you notice burning sm ells, or the TIMER indicator light flashes, stop
operation im m ediately, disconnect the power supply, and consult with authorized service personnel.
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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
autom atically in the previously selected m ode once the
power is restored.
● Use of other electrical appliances (electric shaver, etc.) or
nearby use of a wireless radio transm itter m ay cause the
air conditioner to m alfunction. In this event, tem porarily
disconnect the power supply, reconnect it, and then use
the rem ote control unit to resum e operation.
● Should a power failure occur during TIMER operation,
the tim er will be reset and the unit will begin (or stop)
operating under the new tim er 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 70 to 115 °F
—
HEAT & COOL MODEL
(Reverse Cycle)
About 32 to 75 °F
About 88 °F or less
About 70 to 115 °F
About 64 °F or m ore
Indoor temperature
Indoor humidity
About 80 % or less
If the unit is used for long pe-
riods under high-hum idity
co n d itio n s , co n d e n s a tio n
m ay 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 tem perature conditions than those listed, the built-in protection circuit m ay
operate to prevent internal circuit dam age. Also, during Cooling and Dry m odes, if the unit is used under conditions of
lower tem peratures than those listed above, the heat-exchanger m ay freeze, leading to water leakage and other dam age.
● Do not use this unit for any purposes other than the Cooling, (*)Heating, Dehum idifying, and air-circulation of room s in
ordinary dwellings.
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