Toshiba RAV-SM402MUT-E User manual

AIR CONDITIONER (SPLITTYPE)
Owner’s Manual
Indoor Unit
Model name:
4-way Air Discharge Cassette Type
RAV-SM402MUT-E
RAV-SM452MUT-E
RAV-SM562MUT-E
Not accessible to the general public
English
Owner’s manual
Air conditioner (Split type) 1

1
English-1
Thank you very much for purchasing TOSHIBA Air Conditioner.
Please read this owner’s manual carefully before using your Air Conditioner.
• Be sure to obtain the “Owner’s manual” and “Installation manual” from constructor (or dealer).
Request to constructor or dealer
• Please clearly explain the contents of the Owner’s manual and hand over it.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type that adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
CONTENTS
1ACCESSORIES (SOLD SEPARATELY)..................................................... 2
2PRECAUTIONS FOR SAFETY .................................................................. 2
3PARTS NAME ............................................................................................ 4
4PARTS NAME OF REMOTE CONTROLLER............................................. 5
5CORRECT USAGE .................................................................................... 7
6AUTOMATIC OPERATION (Auto Changeover) ........................................ 8
7ADJUSTMENT OFWIND DIRECTION ...................................................... 9
8TIMER OPERATION ................................................................................ 10
9MAINTENANCE ....................................................................................... 12
10 AIR CONDITIONER OPERATIONS AND PERFORMANCE ................... 14
11 RE-INSTALLATION.................................................................................. 15
12 TROUBLES AND CAUSES ..................................................................... 15

2English-2
1ACCESSORIES (SOLD SEPARATELY)
Remote controller Standard 4-way cassette panel optional parts
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
CODE No.
UNIT No.
TEST SETTING
DATA SET
R.C. No.
H
RBC-AMT32E
2PRECAUTIONS FOR SAFETY
WARNING
WARNINGS ABOUT INSTALLATION
•Make sure to ask the qualified installation professional in electric work to install the
air conditioner.
If the air conditioner is inappropriate installed by yourself, it may cause water leak,
electric shock, fire, and so on.
•Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground
wires for telephone cables.
CAUTION
TO DISCONNECT THE APPLIANCE FROMTHE MAINS SUPPLY
This appliance must be connected to the mains by means of a switch with a contact
separation of at least 3 mm.
The installation fuse (16A) must be used for the power supply line of this
conditioner.
WARNINGS ABOUT OPERATION
•Cleaning of the air filter and other parts of the air filter involves dangerous work in
high places, so be sure to have a service person do it. Do not attempt it yourself.
The cleaning diagram for the air filter is there for the service person, and not for
the customer.
•Avoid cooling the room too strong or exposing the human body to cool breeze for a
long time as it is bad for the health.
•When you notice something abnormal with the air conditioner (smells like some-
thing scorching, poor cooling, etc.), immediately turn off the main switch, the circuit
breaker, from the mains to stop the air conditioner, and contact the dealer.
If the air conditioner is continuously operated with something abnormal, it may
cause machine failure, electric shock, fire, and so on.
WARNINGS ABOUT MOVEMENT AND REPAIR
•Do not move or repair any unit by yourself.
Since there is high voltage inside the unit, you may get electric shock when
removing the cover and main unit.
•Whenever the air conditioner needs repair, make sure to ask the dealer to do it.
If it is repaired imperfectly, it may cause electric shock or fire.
•When moving the air conditioner for re-installing at another place, ask the dealer to
do it.If it is imperfectly installed, it may cause electric shock or fire.
En

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CAUTION
CAUTIONS ABOUT INSTALLATION
•Be sure to confirm the following cautions.
•Certainly lay the drain hose for perfect draining.
Bad drainage may cause flooding in the house and getting furniture wet.
•Make sure to connect the air conditioner to an exclusive power supply of
the rated voltage, otherwise the unit may break down or cause a fire.
•Do not install the unit in a place where inflammable gas may leak.
If inflammable gas accumulates around the unit, it may cause a fire.
CAUTIONS ABOUT OPERATION
•Carefully read this manual before starting the air conditioner.
There are many important things to keep in mind for daily operation.
•Do not use this air conditioner for special purpose such as preserving food,
precision instruments, art objects, breeding animals, growing potted plants,
etc.
•Avoid exposing potted plants and animals to the wind of the air conditioner,
since it badly affects the health and growth of them.
•When the air conditioner is operated with a combustion appliance in the
same place, be careful of ventilation to let fresh air enter the room.
Poor ventilation causes oxygen shortage.
•Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner; otherwise it may cause imperfect
combustion.
•When the air conditioner is used in a closed room, be careful of sufficient
ventilation of the room. Poor ventilation causes oxygen shortage.
•Do not touch any switches with wet finger, otherwise you may get an
electric shock.
•If the air conditioner won’t be used for a considerably long time, turn off the
main switch or the circuit breaker, for safety.
•Check the concrete blocks, etc.of the base of the outdoor unit occasionally.
If the base is left damaged or deteriorated, the unit may topple over and
inflict an injury to a person as the worst case.
•Do not put anything on the outdoor unit or step onto it.
If you do so, it may not only topple over the unit but also injure yourself.
•To make the air conditioner operate in its original performance, operate it
within the range of the operating temperature specified in the instructions.
Otherwise it may cause a malfunction, or water leak from the unit.
•Prevent any liquid from falling into the remote controller.
Do not spill juice, water or any kind of liquid.
2PRECAUTIONS FOR SAFETY

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Air inlet (Side and rear)
Pipes and electric wires
Air outlet
Projection of air filter
Remote controller
Button
Button to open/close the
suction port
Earth screw
Provided in the electric parts box
Discharge louver
of discharge port
Change the direction of the air
to be discharged according to
cool/heat mode.
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
CODE No.
UNIT No.
TEST SETTING
DATA SET
R.C. No.
H
Suction airport
The air in the room is sucked
in from this port.
Air filter
Removes dust or trash.
(Provided on the suction port.)
3PARTS NAME
Indoor unit
Outdoor unit

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4PARTS NAME OF REMOTE CONTROLLER
Display section
In the display example, all indicators are displayed for the explanation.
In reality only, the selected contents are indicated.
•When turning on the leak breaker at the first time,
SETTING
flashes on
the display part of the remote controller.
•While this display is flashing, the model is being automatically confirmed.
Accordingly, wait for a while after
SETTING
display has disappeared, and
then use the remote controller.
Display
section
Operation
section
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
5
78 9216 15
3
4
614
11
13 12
10
1
1SETTING display
Displayed during setup of the timer etc..
2Operation mode select display
The selected operation mode is displayed.
3CHECK display
Displayed while the protective device works or a
trouble occurs.
4Timer time display
Time of the timer is displayed.
(When a trouble occurs, the check code is
displayed.)
5Timer SET IN setup display
When pushing the Timer SET button, the display
of the timer is selected in order of
[OFF] →[OFF] repeat OFF timer →
[ON] →No display.
6Filter display
If “FILTER ” is displayed, clean the air filter.
7TEST run display
Displayed during a test run.
8Louver position display
Displays louver position.
9SWING display
Displayed during up/down movement of the louver.
10 Set up temperature display
The selected set up temp.is displayed.
11 Remote controller sensor display
Displayed while the sensor of the remote controller is
used.
12 PRE-HEAT display
Displayed when the heating operation starts or
defrost operation is carried out.
While this indication is displayed, the indoor fan stops.
13 No function display
Displayed if there is no function even if the button
is pushed.
14 Air volume select display
The selected air volume mode is displayed.
(AUTO) (HIGH)
(MED.) (LOW)
15 Unit Number display
Unit number of the indoor unit selected with the unit
select button or abnormal indicate the indoor/outdoor
unit.
16 Central control display
Displayed when the air conditioner is used under the
central control in combination with a central control
remote controller.
In case the remote controller is disabled by the
central control system, flashes.
The button operation is not accepted.
Even when you push ON/OFF, MODE, or TEMP.
button, and the button operation is not accepted.
(Settings made by the remote controller vary with the
central control mode.For details, refer to the Owner’s
Manual of the central control remote controller.)

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Operation section
Push each button to select a desired operation.
•The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing
ON / OFF
button only.
18
3
5
2
9
10
11
6
7
4
12
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
1
FAN
button (Air volume select button)
Selects the desired air volume mode.
2
TIMER SET
button (Timer set button)
TIMER SET button is used when the timer is set
up.
3
TEST
button (Check button)
The CHECK button is used for the check operation.
During normal operation, do not use this button.
4
VENT
button (Ventilation button)
Ventilation button is used when a fan which is
sold on the market is connected.
•If “No function ” is displayed on the remote
controller when pushing the Ventilation button, a
fan is not connected.
5
FILTER
RESET
button (Filter reset button)
Resets (Erases) “FILTER ” display.
6
SAVE
button (Power save operation)
No Function
7
SWING/FIX
button (Swing/Wind direction button)
Selects automatic swing or setting the louver
direction.
8Operation lamp
Lamp is lit during the operation.
Lamp is off when stopped.
It flashes during operating the protection device
or abnormal time.
9
ON / OFF
button
When the button is pushed, the operation starts,
and it stops by pushing the button again.
When the operation has stopped, the operation
lamp and all the displays disappear.
10
MODE
button (Operation select button)
Selects desired operation mode.
11
UNIT LOUVER
button (Unit/Louver select button)
Selects a unit number (left) and louver number
(right).
UNIT:
Selects an indoor unit when adjusting wind
direction when multiple indoor units are controlled
with one remote controller.
LOUVER:
No Function
12
TEMP.
button (Set up temperature button)
Adjusts the room temperature.
Set the desired set temperature by pushing
TEMP. or TEMP. .
OPTION :
Remote controller sensor
Usually the TEMP. sensor of the indoor unit senses
the temperature.
The temperature on the surrounding of the remote
controller can also be sensed.
For details, contact the dealer from which you have
purchased the air conditioner.

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5CORRECT USAGE
When you use the air conditioner for the first time or when you change the SET DATA value, follow the procedure below.
From the next time, the operation displayed on the remote controller will start by pushing the
ON / OFF
button only.
Preparation
Turn on the main power switch and/or the leakage breaker.
•When the power supply is turned on, a partition line is displayed on the display part of the remote controller.
∗After the power supply is turned on, the remote controller does not accept an operation for approx.1 minute, but
it is not a failure.
REQUIREMENT
•While using the air conditioner, operate it only with
ON / OFF
button without turning off the main power switch
and the leak breaker.
•When you use the air conditioner after it has not been used for a long period, turn on the leakage breaker at
least 12 hours before starting operation.
Start
1Push
ON / OFF
button.
The operation lamp goes on, and the operation starts.
2Select an operation mode with the
“MODE
MODE
”button.
One push of the button, and the display changes in
the order shown as follows.
3Select air volume with“
FAN
”button.
One push of the button, and the display changes in the order shown as follows.
•When air volume is “AUTO”, air volume differs
according to the room temperature.
•In heating operation, if the room temperature is not
heated sufficiently with VOLUME “ LOW”
operation, select “ MED.”or “ HIGH”operation.
•The temperature sensor senses temperature near the suction air port of the indoor unit, which differs from the
room temperature depending on the installation condition.
A value of setting temperature is the measure of room temperature.
(“ AUTO”is not selectable in the FAN mode.)
4Determine the set up temperature by pushing the“TEMP. ”or “TEMP. ” button.
Stop
Push
ON / OFF
button.
The operation lamp goes off, and the operation stops.
AUTO HEAT DRY COOL FAN
LOWMED.HIGH AUTO
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
1
2
3
4

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6AUTOMATIC OPERATION
(Auto Changeover)
When you set the air conditioner in mode or switch over from AUTO operation because of some settings change,
it will automatically select either cooling, heating, or fan only operation depending on the indoor temperature.
Start
1
ON / OFF
button
Push this button to start the air conditioner.
2Mode select button (MODE)
Select Auto.
3Temperature button
Set the desired temperature.
•In case of cooling, start the operation after approx.1 minute.
•In case of heating, the operation mode is selected in accordance with the room temperature and operation
starts after approximately 3 to 5 minutes.
•When you select the Auto mode, it is unnecessary to set the fan speed.
The FAN speed display will show AUTO and the fan speed will be automatically controlled.
•After the heating operation has stopped, FAN operation may continue for approx.30 seconds.
•When the room temperature reaches the set temperature and the outdoor unit stops, the super low wind is
discharged and the air volume decreases excessively.
•If the Auto mode is uncomfortable, you can select the desired conditions manually.
NOTE
When restarting the operation after stop
•When restarting the operation immediately after stop, the air conditioner does not operate for approx.3 minutes
to protect the machine.
Stop
Push
ON / OFF
button.
Push this button again to stop the air conditioner.
3
1
2
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER

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English-9
7ADJUSTMENT OF WIND DIRECTION
•Be sure to draw a line about the use of the louver between cooling and heating operation in order to increase
the cooling/heating effect.
•When the air conditioner stops, the louver (adjustment plate of up/down wind direction) close automatically.
•In heating operation, when starting the operation/executing defrost operation or when the room temperature has
reached the set temperature, the fan stops or the wind volume becomes less extremely and the louver directs
upward.
•In this time, if you set the swinging operation or the wind direction, the setup contents are displayed on the
remote controller but the louver does not move as it directs upward.
•When starting the usual heating operation which blows hot air, the louver directs toward the setup wind direction.
How to set up the wind direction
1Push
SWING/FIX
during operation.
The wind direction changes for every push of the
button.
In HEAT operation
Direct the louver (adjustment plate of up/down wind
direction) downward.
If directing at horizontally, hot air
may not come to the foot.
Initial setup
Initial setup
Initial setup
How to stop swinging
1Push
SWING/FIX
at a desired position while the
louver is swinging.
•When
SWING/FIX
is pushed after that, wind direction
can be set again from the highest position.
∗However, even if
SWING/FIX
is pushed while the louver
is swinging, the louver position is displayed as
follows and highest position of the louver may not
be selected.
Display when swinging is stopped
Repeat
In this case, push
SWING/FIX
again two seconds later.
•In COOL/DRY operation, the louver does not stop
as it directs downward.
If stopping the louver as it directs downward
during swing operation, it stops after moving to
the third position from the highest position.
Display when stopping the swing
In COOL/DRY operation
Direct the louver (adjustment plate of up/down wind
direction) horizontally.
If directing it downward, the dew
may from on the surface of the
air discharge port and may drop down.
In FAN operation
Select a desired wind direction.
How to start swinging
1Push
SWING/FIX
, set the louver (adjustment plate
of up/down wind direction) direction to the
lowest position, and then push
SWING/FIX
again.
SWING is displayed and the up/down wind
direction is automatically selected.
Display during swinging
1
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
FAN/HEAT
operation COOL/DRY operation
FAN/HEAT
operation COOL/DRY operation

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8TIMER OPERATION
A type of timer operation can be selected from the following three types. (Setting of the 168 hours is enabled.)
OFF timer :The operation stops when the time of timer has reached the set time.
Repeat OFF timer :Every time, the operation stops after the set time has passed.
ON timer :The operation starts when the time of timer has reached the set time.
Timer operation
NOTE
•When the operation stops after the timer reached the preset time, the Repeat OFF timer resumes the operation by
pushing
ON / OFF
button and stops the operation after the time of the timer has reached the set time.
•When you push
SWING/FIX
while the OFF timer function of the air conditioner is active; the indication of the timer function
disappears and then appears again after about 5 seconds.
This is due to normal processing of the remote controller.
Set
1PushTIMER SET button.
The timer display (type) changes for every push of
the button.
•
SETTING
and timer time displays flash.
2Push
TIME
to select“SETTIME”.
•For every push of button, the set time in-
creases in the unit of 0.5 hr (30 minutes).
When setting a time more than 24 hours for timer
operation, timer time can be set in the unit of 1 hr.
The maximum set time is 168hr (7 days).
The remote controller displays the set time with
time (between 0.5 and 23.5 hours) (∗1 ) or
number of days and time (24 hours or more) (∗2 )
as shown below.
•For every push of button, the set time
decreases in the unit of 0.5 hr (30 minutes)
(0.5 to 23.5 hours) or 1 hr (24 to 168 hours).
Example of remote controller display
•In the case of 23.5 hours (∗1 )
•In the case of 34 hours (∗2 )
1
3
2
4
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
OFF
(OFF timer) (Repeat OFF timer)
No display
(ON timer)
OFF ON
Number
of days Time
shows 1 day. (24 hours)
shows 10 hours. (Total 34 hours)
3Push SET button.
•
SETTING
display disappears and timer time display
goes on, and or display flashes.
(When ON timer is activated, timer time, ON timer
are displayed and other displays disappear.)
4Cancel of timer operation
Push CL button.
TIMER display disappears.

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[HINTS FOR ECONOMICAL OPERATION]
Maintain room temperature at comfortable level
Clean air filters
The clogged air filter impairs the performance of the air conditioner.
Never open doors and windows more often than necessary
To keep cool or warm air in the room, never open doors and windows more often than necessary.
Window curtains
In cooling, close the curtains to avoid direct sunlight.
In heating, close the curtains to keep the heat in.
Get uniform circulation of room air
Adjust the air flow direction for the even circulation of room air.
Control
Gee, chilly
Clean, please.
Please close
Blows upward
Blows downward
Air flow adjustment
Cool and
dry air
Warm
air
8TIMER OPERATION

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9MAINTENANCE
Cleaning of remote controller
CAUTION
•Use a dry cloth to wipe the remote controller.
•A cloth dampened with cold water may be used on the indoor unit if it is
very dirty.
•Never use a damp cloth on the remote controller.
•Do not use a chemically treated duster for wiping or leave such materials
on the unit for long. It may damage or fade the surface of the unit.
•Do not use benzene, thinner, polishing powder, or similar solvents for
cleaning. These may cause the plastic surface to crack or deform.
If you do not plan to use the unit for more than 1 month
1) Operate the fan for 3 to 4 hours to dry inside the unit
•Operate “FAN”mode.
2) Stop the air conditioner and turn off the main power switch or the circuit
breaker.
Checks before operation
1) Check that the air filters are installed.
2) Check that the air outlet or inlet is not blocked.
3) Turn on the main power switch or the circuit breaker for the main power
supply to the air conditioner.
WARNING
Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have
a service person do it. Do not attempt it yourself.
NOTE
For Air conditioning system that is operated regularly, cleaning and maintenance of the indoor/outdoor units are
strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to be
cleaned at least once every 3-MONTH.
A qualified person shall carry out this cleaning and maintenance.
Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and even
compressor failure.
FAN operation

13
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NOTE
•For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air condi-
tioner in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof
treatment, if necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor
unit at least once every 3 months.Ask a professional for this cleaning/maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage,
and even compressor failure.
•This product incorporates a drain pump.
If it is used in a place full of dust or oil mist, the pump will be clogged and proper drainage is disabled.
Clean the drain pump periodically. For cleaning the drain pump, contact the dealer.
Maintenance List
Part
Heat exchanger
Fan motor
Filter
Fan
Air inlet/outlet grilles
Drain pan
Ornamental panel,
louvers
Exterior
Unit
Indoor/outdoor
Indoor/outdoor
Indoor
Indoor
Indoor/outdoor
Indoor
Indoor
Outdoor
Check (visual/auditory)
•Dust/dirt clogging, scratches
•Sound
•Dust/dirt, breakage
•Vibration, balance
•Dust/dirt, appearance
•Dust/dirt, scratches
•Dust/dirt clogging, drain
contamination
•Dust/dirt, scratches
•Rust, peeling of insulator
•Peeling/lift of coat
Maintenance
•Wash the heat exchanger when it is clogged.
•Take appropriate measures when abnormal sound is
generated.
•Wash the filter with water when it is contaminated.
•Replace it when it is damaged.
• Replace the fan when vibration or balance is terrible.
•Brush or wash the fan when it is contaminated.
•Fix or replace them when they are deformed or
damaged.
•Clean the drain pan and check the downward slope
for smooth drainage.
•Wash them when they are contaminated or apply
repair coating.
•Apply repair coating.
9MAINTENANCE

14 English-14
10 AIR CONDITIONER OPERATIONS AND
PERFORMANCE
3 minutes protection function
3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power
switch/circuit breaker is turned on for re-starting the air conditioner.
Power failure
Power failure during operation will stop the unit completely.
•To restart the operation, push the START/STOP button on the remote controller.
•Lightning or a wireless mobile telephone operating nearby may cause the unit to malfunction.
Turn off the main power switch or circuit breaker and then turn them on again.
Push the START/STOP button on the remote controller to restart.
Heating characteristics
Preheating operation
The air conditioner will not deliver warm air immediately after it is turned on.
Warm air will start to flow out after approximately 5 minutes when the indoor heat exchanger warmed up.
Warm air control (In heating operation)
When the room temperature reaches the set temperature, the fan speed is automatically reduced or stop to
prevent to blow cold draft. At this time, the outdoor unit will stop.
Defrosting operation
If the outdoor unit is frosted during the heating operation, defrosting starts automatically
(for approximately 2 to 10 minutes) to maintain the heating capacity.
•The fans in both indoor and outdoor units will stop during the defrosting operation.
•During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.
Heating capacity
In the heating operation, the heat is absorbed from the outside and brought into the room.
This way of heating is called heat pump system.
When the outside temperature is too low, it is recommended to use another heating apparatus in combination with
the air conditioner.
Attention to snowfall and freeze on the outdoor unit
•In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up.
If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.
•In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for
freeze prevention.
If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or poor warming.
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
If air conditioner is used outside of the above conditions, safety protection may work.
Cooling operation
Dry operation
Heating operation
Outdoor temperature: –15°C to 43°C
Room temperature : 21°C to 32°C (Dry valve temp.), 15°C to 24°C (Wet valve temp.)
CAUTION Room relative humidity –less than 80 %. If the air conditioner operates
in excess of this figure, the surface of the air conditioner may cause dewing.
Outdoor temperature: 15°C to 43°C (Maximum suction air temp. 46°C)
Room temperature : 17°C to 32°C
Outdoor temperature: –15°C to 15°C (Wet valve temp.)
Room temperature : 15°C to 28°C (Dry valve temp.)

15
English-15
11 RE-INSTALLATION
DANGER
Ask the dealer or an installation professional to re-install the air conditioner to a new place or move it to another
place and to observe the following items.
If the air conditioner is inappropriate installed by you, it may cause electric shock or fire.
Do not install the air conditioner in the following places
•Do not install the air conditioner in any place within 1 m from aTV, stereo, or radio set.If the unit is installed in
such place, noise transmitted from the air conditioner affects the operation of these appliances.
•Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business
use, etc.), otherwise the air conditioner may malfunction.
•Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is
generated.
•Do not install the air conditioner in a salty place such as seaside area.
•Do not install the air conditioner in a place where a great deal of machine oil is used.
•Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside area or
on the roof or upper floor of a building.
•Do not install the air conditioner in a place where sulfurous gas generated such as in a spa.
•Do not install the air conditioner in a vessel or mobile crane.
Be careful with noise or vibrations
•Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys your
neighbors.
•Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,
operation noise and vibration.
•If one indoor unit is operating, some sound may be audible from other indoor units that are not operating.
12 TROUBLES AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer:
•The operation lamps flash at short intervals (5 Hz) even though you have tried turning off the power supply and
turning on again after 2 or 3 minutes.
•Switch operation does not work properly.
•The main power fuse often blows out, or the circuit breaker is often activated.
•A foreign matter or water fall inside the air conditioner.
•Any other unusual conditions are observed.

16 English-16
Before you ask for servicing or repairs, check the following points.
Inoperative
•The main power switch is turned off.
•The circuit breaker is activated to cut off power supply.
•The main power fuse has blown out.
•Stoppage of electric current.
Does not cool well or heat well
•The air inlet and/or outlet of the outdoor unit is blocked.
•Doors or windows are opened.
•The fan speed is set to low.
•The air conditioner is set in the DRY mode.
•The set temperature is too high.(In cooling operation)
•The set temperature is too low. (In heating operation)
Indoor unit or outdoor unit makes a strange noise.
•When the temperature suddenly changes, the indoor or outdoor unit
occasionally makes a strange noise because of expansion/
contraction of parts or change of refrigerant flow.
The room air is smelly or a bad odor comes from the air conditioner.
•Smells impregnated in the walls‚carpets, furniture, clothing, or furs, come out.
Outdoor unit is frosted in heating operation.
Water drains from outdoor unit.
•The outdoor unit is sometimes frosted in heating operation.
In that case, the unit automatically performs defrosting
(for 2 to 10 minutes) for increasing the heating efficiency.
•In defrosting operation, both the indoor and outdoor units stop air flow.
•Hiss sound is heard when flow of the refrigerant is changed for defrosting.
•Resultant water of automatic defrosting in heating operation drains from
outdoor unit.
Air flow changes though the FAN button is not set to the AUTO mode.
•When the temperature of blown air drops in heating operation,
the air conditioner automatically changes or stops air flow from the
indoor unit not to make persons in the room feel chilly.
•Air flow from the indoor unit is occasionally changed in the cooling operation.
A white mist of chilled air or water is generated from the outdoor unit.
•The indoor unit in cooling operation or the outdoor unit in defrosting
operation occasionally steams.
Recheck
These are not failures.
Calm

EH99932301
Information according to EMC Directive 2004/108/EC
(Name of the manufacturer) TOSHIBA CARRIER CORPORATION
(Address, city, country) 23-17 TAKANAWA, 3-Chome, Minatoku, Tokyo
108-8580 Japan
(Name of the Importer/Distributor in EU) CARRIER CORPORATION
(Address, city, country) Via Raffaello Sanzio, 9
20058 Villasanta (MI) Italy