Page 1
Page 2
CONTENTS
SAFETY PRECAUTIONS ....................................... 1
NAME OF PARTS ................................................... 2
PREPARATORY OPERATION................................. 3
OPERATION ........................................................... 3
TIMER FUNCTIONS ...............................................5
ON/OFF TIMER ...................................................... 5
WEEKLY TIMER ..................................................... 6
TEMPERATURE SET BACK TIMER....................... 8
FILTER DISPLAY RESET ........................................ 9
SELF-DIAGNOSIS ..................................................9
ADJUSTING THE DIRECTION OF
AIR CIRCULATION ............................................... 10
SWING OPERATION............................................ 10
CLEANING AND CARE ........................................11
TROUBLESHOOTING ..........................................12
OPERATING TIPS................................................. 13
SAFETY PRECAUTIONS
● Before using the appliance, read these “SAFETY PRECAUTIONS” thoroughly and operate in the correct way.
● The instructions in this section all relate to safety; be sure to maintain safe operating conditions.
● “DANGER”, “WARNING” and “CAUTION” have the following meanings in these instructions:
DANGER!
WARNING!
CAUTION!
DANGER!
This mark indicates procedures which, if improperly performed, are most likely to
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.
● This unit contains no user-serviceable parts. Always consult authorized service per-
sonnel for repairs.
● When moving, consult authorized service personnel for disconnection and installation 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.
En-1
CAUTION!
● Provide occasional ventilation during use.
● 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 metre 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 units, take precautions to prevent access by
infants.
● Do not use inflammable gases near the air conditioner.
08M516_9374379378_en 2009.01.19, 14:091
Page 3
NAME OF PARTS
2
5
4
1
5
3
0
1 Air Filter (In Air Intake Grille)
2 Air Flow Direction Flaps
3 Air Intake Grille
4 Remote Controller (Wired)
5 Control Panel
6 Remote Control Signal Receiver
7 MANUAL AUTO Button
8 OPERATION Indicator Lamp (Green)
9 TIMER Indicator Lamp (Orange)
0 FILTER Lamp (Red)
A REMOTE CONTROLLER (Wireless)
A
9
8
WIRED TYPE
Remote controller
F
2
6
7
8
9
0
A
1 START/STOP Button
2 SET TEMP. Button
3 MODE Button
4 FAN Button
5 ECONOMY Button
6 TIMER MODE (CLOCK ADJUST) Button
7 DAY (DAY OFF) Button
8 SET BACK Button
9 Set Time Button
0 TIMER DELETE Button
A TIMER SET Button
B Vertical Airflow Direction and Swing
Button
7
Either the wireless or wired remote controller can be selected.
C Horizontal Airflow Direction and Swing
Button (This function cannot be used)
D MAINTENANCE (FILTER RESET) Button
E Operation Lamp
F Timer and Clock Display
G Operation Mode Display
H Fan Speed Display
I Operation Lock Display
J Temperature Display
K Function Display
Defrost Display
Thermo Sensor Display
Economy Display
Vertical Swing Display
Horizontal Swing Display
Filter Display
6
I
H
G
J
K
E
1
3
4
C
B
5
D
WIRELESS TYPE
(OPTION)
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Page 4
PREPARATORY OPERATION
Set the current day and time
1
Press the TIMER MODE (CLOCK
ADJUST) button for 2 seconds
or more. The time display on
the remote controller will flash.
3
3
SET BACK
4
SUMOTUWETH FR
2
SU MO TU WE TH FR SA
Press the set time buttons to set the current time.
Press repeatedly to adjust the current time in
1-minute increments. Press and hold to adjust the
current time in 10-minute increments.
SUMOTUWETH FR
ex. Monday PM 11:00
Press the SET BACK button to switch between the
12- and 24-hour time displays.
SA
SA
Press the DAY button and select the current day.
appears around the selected day.
A
SUMOTUWETH FR
SA
5
Press again to end.
OPERATION
Instructions relating to heating are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
To start/stop operation
Press the START/STOP button.
Operation lamp
Air conditioner ON: Lit brightly
Air conditioner OFF: Not lit
En-3
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To set the operation mode
● Operation mode setting
Press the MODE button to set the operation mode.
If DRY is selected, the fan speed will be set to AUTO.
AUTO COOL DRY HEATFAN
● Room temperature setting
Press the SET TEMP. buttons to set the room temperature.
Temperature setting range
Lower Rise
● Fan speed setting
Press the FAN button to set the fan speed.
AUTO MEDHIGH LOW QUIET
ECONOMY OPERATION
Room temperature sensor selection
AUTO ............................................... 64 to 88 °F
COOL/DRY ....................................... 64 to 88 °F
HEAT ................................................ 60 to 88 °F
Press the ECONOMY button to start or stop ECONOMY OPERATION.
For details on the function, refer to page 13.
Indoor unit
Press the ECONOMY button for more than 2 seconds to
select whether the room temperature is detected at the indoor unit (remote sensor) or the remote controller.
When the
temperature is detected at the remote controller.
thermo sensor display appears, the room
NOTES
• This function is locked at the factory. In order to detect the room temperature correctly, consult authorized service
personnel when using this function.
• If this function is locked, the location where the room temperature is detected cannot be changed and the
mark flashes when the ECONOMY button is pushed for 2 seconds or more.
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Page 6
OPERATION
Part lock function
Press the DAY (DAY OFF) button and SET button simultaneously for 2 seconds or more to activate the part lock
function and lock all of the buttons on the remote controller except the START/STOP button, SET TEMP. buttons, MODE button, and FAN button. Press the buttons
again for 2 seconds or more to deactivate the part lock
function.
When the part lock function is activated, the
appears. If any button is pressed during the part lock, the
PL
TIMER FUNCTIONS
OFF timer (See page 5.)
Use this timer function to stop air conditioner operation. The timer operates and air conditioner operation stops
after the set time has passed. The timer can be set up to 24 hours in advance.
ON timer (See page 5.)
Use this timer function to start air conditioner operation. The timer operates and air condition operation starts
after the set time has passed. The timer can be set up to 24 hours in advance.
WEEKLY timer (See page 6.)
Use this timer function to set operating times for each day of the week.
Use the DAY OFF setting to switch off timed operation for a selected day in the coming week.
Because all days can be set together, the weekly timer can be used to repeat the timer settings for all of the days.
mark
display flashes.
Temperature SET BACK timer (See page 8.)
Use this timer function to change the set temperature in the operation times set for each day of the week.
This can be used together with other timer settings.
ON/OFF TIMER
To set the ON/OFF timer
1
No display
NON
STOP
● To cancel
Press the TIMER MODE button to
select the ON timer or OFF timer.
OFF
TIMER
• Press the TIMER DELETE button to cancel the timer mode.
• The timer mode can also be canceled by changing the timer mode using the timer mode button.
ON
TIMER
WEEKLY
TIMER
SUMOTUWETH FR
SA
2
From 1 to 24 hours
Press the set time buttons to set the time.
After the time is set, the timer will start automatically.
The amount of time until the OFF timer operates that is displayed on the timer display decreases as time passes.
ex. OFF timer set for 6 hours
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WEEKLY TIMER
Weekly timer setting
1
Press the TIMER MODE button to select the weekly timer.
● Day of the week setting
3
1
Press the DAY button to select the day of the week, and then press the
TIMER SET button to confirm the setting.
For ALL, all of the days can be set together when a appears around
each day.
● Time setting
2
SUMOTUWETH FR
369
SA
12 15 18 21
ALL SU MO TU WE TH FR SA
4
1
2
3
2
Press the TIMER SET button for
2 seconds or more.
SUMOTUWETH FR
369
When the operating time is set, the
mark appears.
SUMOTUWETH FR
SA
12 15 18 21
SA
ON-1 OFF-1 ON-2 OFF-2
Press the set time buttons to set the time, and then press the TIMER SET
button to confirm the setting and proceed to the next ON or OFF time
setting.
Up to two ON and OFF times can be set per day.
Press the DAY button to complete the time setting and return to the day
of the week setting.
● To delete the operating time
5
Repeat steps 3 and 4.
To complete the weekly timer settings, press the
TIMER SET button for 2 seconds or more.
NOTES
• The operating time can be set in 30-minute increments only.
• The OFF time can be carried over to the next day.
• The ON timer and the OFF timer functions cannot be set using the weekly timer. Both an ON and OFF time must be set.
If the TIMER DELETE button is pressed
during steps
for the selected day will be deleted.
If all the days are selected, the operating
times for all of the days will be deleted.
369
12 15 18 21
ex. The timer is set for 7:00-18:00.
3 or 4, the operating time
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Page 8
WEEKLY TIMER
WEEKLY timer operation
● To start
SUMOTUWETH FR
369
12 15 18 21
● To cancel
SA
When the weekly timer is selected, the
timer starts automatically.
To set the DAY OFF (for a holiday)
1
During the weekly timer,
press the TIMER SET button
for 2 seconds or more to set
the day.
SUMOTUWETH FR
369
12 15 18 21
243
Select the day to set the DAY
OFF.
SA
369
ex. Operating time 7:00-18:00
The operating time for the current
day is displayed.
SUMOTUWETH FR
369
ex. The DAY OFF is set for Monday.
12 15 18 21
Press the DAY (DAY OFF)
button for 2 seconds or
more to set the DAY OFF.
SA
The
12 15 18 21
• Press the TIMER DELETE button to
cancel the timer mode.
• The timer mode can also be
canceled by changing the timer
mode using the TIMER MODE button.
Press the TIMER SET button
for 2 seconds or more to
complete the DAY OFF setting.
mark flashes under a day of the week.
● To cancel
Follow the same procedures as
those for setup.
NOTES
• The DAY OFF setting is only available for days for which weekly settings already exist.
• If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as
shown below.
● Normal ● Next day setting
DAY OFF
ON OFF ON OFF
WEEKLY WEEKLY
Setting dayPreceding day Next day Setting dayPreceding day Next day
• The DAY OFF setting can only be set one time. The DAY OFF setting is cancelled automatically after the set day has
passed.
ON
WEEKLY
OFF
DAY OFF
ON
WEEKLY
OFF
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Page 9
TEMPERATURE SET BACK TIMER
Temperature SET BACK timer setting
SET BACK
1
Press the SET BACK button to change to the SET BACK confirmation display.
The SET BACK operating time and the set temperature will
be displayed.
● Day setting ● Operating time setting
3
1
Follow the same procedures to set the operating time as those for the weekly timer. The DELETE button is also used
as described in the procedures for the weekly timer.
● Temperature setting
4
SUMOTUWETH FR
369
2
SA
12 15 18 21
3
Press the SET TEMP. buttons to set the
temperature. (The temperature setting
range is the same as the range for the
operation mode.)
SUMOTUWETH FR
SA
If there is no existing
SET BACK temperature setting, “- -” will
be displayed for the
temperature.
4
ex. When setting all days together
SUMOTUWETH FR
369
12 15 18 21
5
2
Press the TIMER SET button
for 2 seconds or more.
SA
369
SET BACK temperature
Normal temperature
12 15 18 21
ex. Operating time 15:00–22:00
ON
76°F
84°F
OFF
76°F
Repeat steps 3 and 4.
Press the TIMER SET button for
2 seconds or more to complete
the temperature SET BACK
timer settings.
Temperature SET BACK timer operation
● To start
SET BACK
ex. Display during SET BACK timer operation
(The operating time will not be displayed.)
Press the SET BACK button. The SET BACK confirmation display appears
for 5 seconds, and then the timer starts automatically.
NOTES
• The SET BACK timer only changes the set temperature, it cannot be used to start or stop air conditioner operation.
• The SET BACK timer can be set to operate up to two times per day but only one temperature setting can be used.
• The SET BACK timer can be used together with the ON, OFF, and weekly timer functions.
• The SET BACK operating time is displayed only in the SET BACK confirmation display. (Refer to step 1 for the SET BACK
confirmation display.)
SUMOTUWETH FR
SA
● To cancel
1
Press the SET BACK button, and then
press the TIMER DELETE button while
the SET BACK confirmation display is
displayed. Even if the SET BACK button is pressed again, the SET BACK
timer will be cancelled.
2
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Page 10
FILTER DISPLAY RESET
To Reset Filter Display
Press the MAINTENANCE button for 2 seconds or more. The filter display will disappear.
SELF-DIAGNOSIS
When “EE” in Temperature Display is displayed, inspection of the air conditioning system is necessary. Please consult
authorized service personnel.
Unit number (usually 0)
Error code
SUMOTUWETH FR
ex. Self-diagnosis check
SA
En-9
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ADJUSTING THE DIRECTION OF AIR CIRCULATION
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Start air conditioner operation before performing this procedure.
To set the operation mode
●
Vertical air direction adjustment
* Press the START/STOP button to start the air conditioner, and then pro-
ceed as follows.
Press the VERTICAL AIRFLOW DIRECTION and SWING button to adjust
the direction of the vertical airflow.
Each time the button is pressed, the air direction range will change as follows:
1
2 3 4
The remote control unit’s display does not change.
● Attempting to move up/down air direction flaps manually could result
Recommended Air Flow Direction Setting:
1, 2, 3, 4: During Cooling/Dry mode
2, 3, 4: During Heating mode
● 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 4
● During AUTO mode operation, for the first minute after beginning operation,
airflow will be horizontal 1; the air direction cannot be adjusted during this
period.
● Horizontal air direction adjustment.
The function cannot be used.
in improper operation; in this case,
stop operation and restart. The
louvers should begin to operate
properly again.
● When used in a room with infants,
children, elderly or sick persons, the
air direction and room temperature
should be considered carefully when
making settings.
SWING OPERATION
Begin air conditioner operation before performing this procedure.
To select/stop swing operation
Press the VERTICAL AIRFLOW DIRECTION and SWING button for more
than 2 seconds. (Stop the setting by pressing for more than 2 seconds
again.)
About Swing Operation
The type of operation
Cooling/Dry/Fan
Heating
08M516_9374379378_en 2009.01.19, 14:1310
Range of swing
1 to 4
2 to 4
● The SWING operation may stop temporarily when the air
conditioner’s fan is not operating, or when operating at
very low speeds.
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Page 12
CLEANING AND CARE
● Before cleaning the unit, be sure to stop the unit and disconnect the power supply.
CAUTION!
● 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 40 °C, 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.
Cleaning the Air Filter
● When the filter lamp flashes, remove and clean the filter.
1. Push the intake grille’s hooks inward towards the
center of the unit to open the intake grille.
● Turn off the electrical breaker.
● A fan operates at high speed inside the unit, and personal injury could result.
● Be careful not to drop the intake grille.
4. Re-attach the air filters to the intake grille.
1 Replace the air filter into its holder.
2 Make sure that the air filter makes contact with the
filter stopper when it is replaced into its holder.
Air Filter
Grille Hook
2. Pull out the filter from the intake grille.
Air Filter
3. Clean the air filter.
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.
Filter Hook
Intake Grille
5. Close the intake grille and push the intake grille’s hooks
outward.
Grille Hook
● Dust can be cleaned from the air filter either with a
vacuum cleaner, or by washing the filter in a solution of
mild detergent and warm water. If you wash the filter, be
sure to allow it to dry thoroughly in a shady place before
reinstalling.
● If dirt is allowed to accumulate on the air filter, air flow
will be reduced, lowering operating efficiency and increasing noise.
● After turning the power on, press the MAINTENANCE
button for 2 seconds or more on the remote control.
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TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
WARNING!
Before requesting service, perform the following checks:
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical 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.
Symptom
Problem
See Page
NORMAL
FUNCTION
Doesn’t operate immediately:
Noise is heard:
Smells:
Mist or steam are
emitted:
Airflow is weak or stops:
Water is produced from
the outdoor unit:
The FILTER display
blinks:
● If the unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.
● Whenever the electrical breaker is turned off then on again, the
protection circuit will operate for about 3 minutes, preventing unit
operation during that period.
● 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 sizzling sound may be heard occa-
sionally. This sound is produced by the Automatic Defrosting operation.
● Some smell may be emitted from the indoor unit. This smell is
the result of room smells (furniture, tobacco, etc.) which have
been taken into the air conditioner.
● 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 the Automatic Defrosting operation.
*● 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 to a higher setting.
*● During Heating operation, the unit will temporarily stop opera-
tion (between 4 and 15 minutes) as the Automatic Defrosting mode
operates. During the Automatic Defrosting operation,
be shown on the remote controller display.
● The fan may operate at very low speed during Dry operation or
when the unit is monitoring the room’s temperature.
● During QUIET operation, the fan will operate at very low speed.
● In the monitor AUTO operation, the fan will operate at very low
speed.
*● During Heating operation, water may be produced from the out-
door unit due to the Automatic Defrosting operation.
● Clean the filter. Afterwards, turn the FILTER display off.
will
—
—
13
—
—
13
—
13
—
—
—
13
9, 11
thermo sensor display
on the remote controller
is flashing:
08M516_9374379378_en 2009.01.19, 14:1412
● The room temperature sensor may be malfunctioning. Please
consult authorized service personnel.
—
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Page 14
TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Symptom
CHECK ONCE
MORE
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, disconnect
the power supply, and consult with authorized service personnel.
Doesn’t operate at all:
Poor Cooling (or *Heating)
performance:
● Has the circuit breaker been turned off?
● Has there been a power failure?
● Has a fuse blown out, or a circuit breaker been tripped?
● Is the timer operating?
● Is the air filter dirty?
● Are the air conditioner’s intake grille or outlet port blocked?
●
Did you adjust the room temperature settings (thermostat) correctly?
● 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?
● Is the unit set for QUIET operation?
Items to check
See Page
—
5 to 7
—
—
OPERATING TIPS
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*Heating Performance
● 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 insufficient heating performance is
being produced, we recommend you use this air conditioner in conjunction with another kind of heating appliance.
● 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 conditioner until the room is heated.
*When Indoor and Outdoor Temperature are High
● When both indoor and outdoor temperatures are high during use of the heating mode, the outdoor unit’s fan may stop at times.
Fan speed: AUTO
*Heating: The fan will operate at very low speed when the temperature of the air issued from the indoor unit is low.
Cooling: As the room temperature approaches that of the set temperature, the fan speed becomes slower.
Fan: The fan runs at the low fan speed.
*Microcomputer-controlled Automatic Defrosting
● 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 performance.
In order to prevent this kind of reduced performance, this unit is equipped with a Microcomputer-controlled Automatic Defrosting
function. During the defrost cycle, the indoor fan will shutdown and
anywhere from 4 to 15 minutes before the air conditioner starts up again.
will be displayed on the remote controller. It will take
Low Ambient Cooling
● When the outdoor temperature drops, the outdoor unit’s fans may switch to Low Speed, or one of the fans may stop intermittently.
*Hot start
The indoor unit prevents cold drafts when heating operation begins.
The indoor unit fan will not operate or it will operate at a very low speed until the heat exchanger reaches the set temperature.
About ECONOMY OPERATION
At the maximum output, ECONOMY OPERATION is approximately 70% of normal air conditioner operation for cooling and heating.
When ECONOMY OPERATION is performed during the cooling mode, dehumidification is improved. This function is especially convenient when you want to remove the humidity in the room without significantly lowering the room temperature.
During ECONOMY OPERATION, the thermostat setting automatically changes according to the temperature to avoid Unnecessary cooling and heating for the most economical operation.
● If the room is not cooled (or heated) well during economy operation, select normal operation.
● During the monitor period in the AUTO mode, the air conditioner operation will not change to ECONOMY OPERATION even if ECONOMY
OPERATION is selected by pressing the ECONOMY button.
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Page 15
OPERATING TIPS
Dual Remote Controllers (optional)
An additional remove controller can be added up to the maximum of two remote controllers. Either remote controller can control the air
conditioner. However, the timer functions cannot be used at the slave unit.
Group Control
One remote controller can control up to 16 air conditioners.
All of the air condiioners will be operatted with the same settings.
Mode operation: AUTO
COOLING MODEL
● When the room temperature is 4 °F higher than the set
temperature, the mode will switch between Cooling and
Drying.
HEAT & COOL MODEL (Reverse Cycle)
Auto changeover function
● When AUTO CHANGEOVER is selected, the air conditioner selects the appropriate operation mode (Cooling
or Heating) according to your room’s present temperature.
● When AUTO CHANGEOVER is first selected, the fan will
operate at a very low speed for about 1 minute while
the unit determines the current conditions of the room
and selects the proper operation mode.
If the difference between thermostat setting and actual
room temperature is more than +4 °F
→ Cooling or dry operation
(Monitor operation may be selected if the outdoor
temperature is low.)
If the difference between thermostat setting and actual
room temperature is within ±4 °F
→ Monitor operation
If the difference between thermostat setting and actual
room temperature is more than –4 °F
→ Heating operation
(Monitor operation may be selected if the outdoor
temperature is high.)
● 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.
● When the room temperature is near the thermostat setting, the air conditioner will begin monitor operation. In
the monitor operation mode, the fan will operate at a very
low speed. If the room temperature subsequently
changes, the air conditioner will once again select the
appropriate operation (Heating or Cooling) to adjust the
temperature to the value set in the thermostat. (The monitor operation range is ±4 °F relative to the thermostat
setting.)
About Mode Operation
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 setting. This period of time is provided to allow the indoor
unit to warm up before beginning 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 Defrosting operation, and the heat operation
will be interrupted.
● After the start of heating operation, it takes sometime before the room
gets warmer.
Cooling: ● Use to cool your room.
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 adjusting room humidity.
● The fan speed cannot be changed manually when Dry mode has been
selected.
Fan: ● Use to circulate the air throughout your room.
During Heating mode:
Set the thermostat to a temperature setting 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.
During Cooling/Dry mode:
Set the thermostat to a temperature setting 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 operate).
During Fan mode:
You can not use the unit to heat and
cool your room.
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OPERATING TIPS
AUTO Restart
In Event of Power Interruption
● Should the power supply to the air conditioner be interrupted 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.
Multi-typer Air conditioner
This indoor unit can be connected to a multi-type outdoor unit. The multi-type air conditioner allows multiple indoor units
to be operated in multiple locations. The indoor units may be operated simultaneously, in accordance with their respective
output.
Simultaneous Use of Multiple Units
❖
Instructions relating to inverter (
● When using a multi-type air conditioner, the multiple
indoor units can be operated simultaneously, but when
two or more indoor units of the same group are operated simultaneously, the heating and cooling efficiency
will be less than when a single indoor unit is used alone.
Accordingly, when you wish to use more than one indoor unit for cooling at the same time, the use should
be concentrated at night and other times when less output is required. In the same way, when multiple units
are used simultaneously for heating, it is recommended
that they be used in conjunction with other auxiliary
space heaters, as required.
● Seasonal and outdoor temperature conditions, the structure of the rooms and the number of persons present
may also result in differences of operating efficiency.
We recommend that you try various operating patterns
in order to confirm the level of heating and cooling output provided by your units, and use the units in the way
that best matches your family's lifestyle.
● If you discover that one or more units delivers a low
level of cooling or heating during simultaneous operation, we recommend that you stop simultaneous operation of the multiple units.
❖
● Operation cannot be done in the following different op-
erating modes.
If the indoor unit is instructed to do an operating mode
that it cannot perform,
mote controller display and the unit will go into the
standby mode.
Heating mode and cooling mode (or dry mode)
Heating mode and fan mode
) are applicable only to “INVERTER MODEL”.
❖
● Operation can be done in the following different operat-
ing modes.
Cooling mode and dry mode
Cooling mode and fan mode
Dry mode and fan mode
❖
● The operating mode (heating mode or cooling (dry)
mode) of the outdoor unit will be determined by the operating mode of the indoor unit that was operated first.
If the indoor unit was started in fan mode, the operating
mode of the outdoor unit will not be determined.
For example, if indoor unit (A) was started in fan mode
and then indoor unit (B) was then operated in heating
mode, indoor unit (A) would temporarily start operation in fan mode but when indoor unit (B) started operating in heating mode,
mote controller display and it would go into standby
mode. Indoor unit (B) would continue to operate in heating mode.
will be shown on the re-
will be shown on the re-
Notice
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
*● During use of the heating mode, the outdoor unit will
occasionally commence the defrost operation for brief
periods. During the defrosting operation, if the user sets
the indoor unit for heating again, the defrosting mode
will continue, and the heating operation will begin after completion of defrosting, with the result that some
time may be required before warm air is emitted.
*● During use of the heating mode, the top of the indoor
unit may become warm, but this is due to the fact that
coolant is circulated through the indoor unit even when
it is stopped; it is not a malfunction.
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