Mitsubishi Electric MSZ-GB35VA Operating Instructions Manual

SPLIT-TYPE AIR CONDITIONERS

OPERATING INSTRUCTIONS

INDOOR UNIT

MSZ-GB35VA

For customers

Thank you very much for purchasing this Mitsubishi room air conditioner.

• To use this unit correctly and safely, be sure to read this operating instructions before use. Keep this manual carefully for later reference.

• Be sure to receive a guarantee card from your dealer and check that the purchased data and shop name, etc. are entered correctly.

• This air conditioner should not be installed by the customer. (Safety and performance functions cannot be assured.)

SG79Y987H01_Cover.p65 07.4.16, 0:05 PM3

•

This air conditioner is NOT intended for use by children or infirm persons without supervisions.

When the air filter is to be removed, do not touch the metal parts of the indoor unit.

• This may cause an injury.

Do not use an insecticide or flammable spray.

• This may cause a fire or deformation of the cabinet.

Do not put a pet or houseplant where it will be exposed to direct airflow.

• This could injure the pet or plant.

Do not leave the unit on an installation stand which is damaged.

• The unit may fall and this may cause an injury.

Do not step onto an unstable bench when maintaining the unit, etc.

• This may cause an injury, etc. if you fall down.

Do not pull the power supply cord.

• The core wire of the power supply cord may be disconnected and this may cause a fire.

Do not charge or disassemble the batteries and do not throw them into a fire.

• This may result in leakage, fire or an explosion.

Do not operate the unit for a long time in high humidity, e.g. leaving a door or window open.

• In the cooling mode, if the unit is operated in a room with high humidity (80% RH or more) for a long time,
water condensed in the air conditioner may drop and wet or damage furniture, etc.

Do not operate the unit at low outside temperature (less than -10°C) in the cooling mode.

• In the cooling mode, if the unit is operated at low outside temperature (less than -10°C), water condensed
in the air conditioner may drop and wet or damage furniture, etc.

CAUTION

Do not use intermediate connection of the power supply cord or the extension cord and do not
connect many devices to one AC outlet.

• A fire or an electric shock may result from poor contact, poor insulation, exceeding the permissible
current, etc.

Do not scratch or process the power supply cord, etc.

• Do not put heavy object on the power supply cord and do not scratch or process the cord. The cord may be
damaged and this may cause a fire or an electric shock.

Do not turn the breaker off/on or disconnect/connect the power supply plug during operation.

• This may cause a fire due to spark, etc.

• Be sure to turn off the breaker or disconnect the power supply plug absolutely after switching the indoor
unit off with the remote controller.

Do not expose your skin directly to cool air for a long time.

• This could damage your health.

The customer should not install this unit.

• If this is done incorrectly, it may cause a fire, an electric shock, or injury from the unit falling, water
leaking, etc. Consult your dealer.

Do not insert your finger or a stick, etc. into the air inlet/outlet.

• Since the fan rotates at high speed, this may cause an injury.

• Young children should be supervised to ensure that they do not play with the air conditioner.

When an abnormality (burning smell, etc.) occurs, stop the air conditioner and disconnect the power
supply plug or turn off the breaker.

• If the unit continues to be operated in an abnormal condition, it may cause a fire, trouble, etc. In this case,
consult your dealer.

Repairs or relocation should not be done by the customer.

• If this is done incorrectly, it may cause a fire, an electric shock, or injury from the unit falling, water
leaking, etc. Consult your dealer.

• If the power supply cord is damaged, it must be replaced by the manufacturer or its service agent in order
to avoid a hazard.

WARNING

ENCLOSURE

AIR OUTLET

3

CAUTION

WARNING

CAUTION

NAME OF EACH PART

Indoor unit

Air cleaning filter
(Anti-Allergy Enzyme
Filter, Blue bellows
type)

Vertical vane

Operation section

(When the front panel is opened)

Front panel

Air inlet

Display section

Air outlet

Emergency operation switch

Remote control
receiving section

Horizontal vane

Remote controller

Catechin air filter

Heat exchanger

Fan

Fan guard

Operation Indicator
lamp

Outdoor unit

Air inlet (back and side)

Piping

Drainage hose

Air outlet

Drain outlet

On-timer button

CLOCK set button

TIME set buttons
Forward button
Backward button

Vane control button

Off-timer button

PREPARATION BEFORE OPERATION

Auto restart function

■

These models are equipped with an auto restart function. If you do not want to use this function,
please consult the service representative because the setting of the unit needs to be changed.

Auto restart function is ...

When the indoor unit is controlled with the remote controller, the operation mode, the set temperature and the fan speed are
stored in the memory. If a power failure occurs or the main power is turned off during operation, “Auto restart function” sets
automatically to start operating in the same mode as the one set with the remote controller just before the shutoff of the main
power. (Refer to page 6 for details.)

Outdoor unit

■

Insert the power supply plug into the power outlet and/or turn the breaker on.

WARNING:
Remove dirt from the power supply plug and insert the plug securely.
If dirt adheres to the plug or insertion is incomplete, it may cause a fire or an electric shock.

Remote controller

■

Use the remote controller provided with the unit only. Do not use other remote controller.

Temperature buttons

ON/OFF

TOO

COOL

CLOCK

˚C

TOO

WARM

5

When the remote controller cannot be used (emergency operation)

When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation
can be done using the EMERGENCY OPERATION switch.

Handling of the remote controller

• The range that the signal can reach is about 6 m
when the remote controller is pointed at the front of
the indoor unit.

• When a button is pressed, one or two beeps will be
heard from the indoor unit. If no sound is heard,
operate again.

• Use the remote controller carefully.
If it is dropped, thrown or it gets wet, the remote
controller may not operate.

When installing on a wall, etc.

• Install the remote controller holder in a position where
the signal reception sound (beep) can be heard from

the indoor unit when the

ON/OFF

button is pressed.

How to install/remove the remote controller

Installing :Insert the remote controller downward.
Removing :Pull it up.

Dry-cell batteries

■ Reference for replacing batteries
Replace the batteries with new AAA alkaline batteries
in the following cases:

· When the indoor unit does not respond to the remote

control signal.

· When the display on the remote controller becomes

dim.

· When a button of the remote controller is pressed, all

displays appear on the screen, and then disappear
immediately.

Do not use manganese batteries. The remote controller
could malfunction.

• The service life of an alkaline battery is about 1 year.
However, a battery whose time limit is approaching
may be exhausted soon. The recommended usable
time limit is indicated (month/year) on the bottom of
the battery.

• To prevent liquid leakage, take out all batteries when
the remote controller is not going to be used for a
long time.

CAUTION:
If liquid from the batteries gets onto your skin or
clothes, wash it well with clean water.
If liquid from the batteries gets into your eyes, wash
them well with clean water and consult a doctor at
once.

• Do not use rechargeable batteries.

• Replace the 2 batteries with new ones of the same

type.

• Dispose of exhausted batteries in the correct manner.

button

2 To stop the emergency operation, press the

EMERGENCY OPERATION switch once (in
case of EMERGENCY HEAT MODE) or twice
(in case of EMERGENCY COOL MODE).

1 Press the EMERGENCY OPERATION switch.

• Each time the EMERGENCY OPERATION switch is
pressed, the unit will operate in order of
EMERGENCY COOL MODE, EMERGENCY HEAT
MODE and STOP MODE.
However, when the EMERGENCY OPERATION
switch is once pressed, the unit will operate in test
run for 30 minutes and then the operation mode
shifts to EMERGENCY MODE.

• Details of EMERGENCY MODE are as shown below.
However, the temperature control does not work
for 30 minutes in test run and the unit is set to
continuous operation. The fan speed is set to High
in test run and shifts to Medium after 30 minutes.

Operation mode COOL HEAT

Set temperature 24°C24°C

Fan speed Medium Medium

Horizontal vane Auto Auto

• The operation mode is indicated by the Operation
Indicator lamp on the indoor unit as following
figure.

Operation Indicator lamp

EMERGENCY COOL

EMERGENCY HEAT

STOP

Remote controller
holder

➝ ➝

ON/OFF

button.

ON/OFF

button.

ON/OFF

button.

Description of “AUTO RESTART FUNCTION”

• These units are equipped with an auto restart function. When the main power is turned on, the air conditioner will start
operation automatically in the same mode as the one set with the remote controller before the shutoff of the main
power.

• If the unit was set to off with the remote controller before the shutoff of the main power, it will remain stopped even after
the main power is turned on.

• If the unit is operated in “

AUTO” mode before power failure, the operation mode (COOL, DRY or HEAT) is not
stored in the memory. When the main power is turned on, the unit decides the operation mode by the initial room
temperature at restart and starts operation again.

Information for multi system air conditioner

Multi system air conditioner can connect two or more indoor units with one outdoor unit. According to the
capacity, two or more units can operate simultaneously.

• When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the other
for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that will start the
operation later cannot operate, indicating an operation state. (Refer to the table of Operation Indicator lamp below.)
In this case, please set all the indoor units to the same operation mode.

• When indoor unit starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes (max.
10 minutes) to blow out the warm air.

• In the heating operation, the indoor unit that does not operate may get warm or the sound of refrigerant flowing may be
heard. This is not a malfunction since the refrigerant continuously flows into the indoor unit that does not operate.

Details of display on the indoor unit

The operation indicator at the right side of the indoor unit indicates the operation state.

Operation Indicator

Lighted
Blinking
Not lighted

Operation indicator lamp

Indication

Difference between target

temperature and room temperature

Operation state

This shows that the air conditioner is operating to reach the
target temperature. Please wait until the target temperature
is obtained.

This shows that the room temperature is approaching the
target temperature.

This shows a state of standby for operation.
Please refer to Information for multi system air conditioner
above.

About 2°C or more

About 2°C or less

–

MODE

7

Change the fan speed.

Fan speed: Med. or upper

ON/OFF

ON/OFF

ON/OFF

AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT

■

To change the AIR FLOW velocity, press the button.

Each time the button is pressed, the fan speed is changed in sequence:

(Low) → (Med.) → (High) → (Super High) → (AUTO)

• Use the

(Super High) notch to cool/heat the room more efficiently.

• If the operating sound of the air conditioner disturbs your sleep, use the
(Low) notch.

■

To change the AIR FLOW blowing direction vertically, press the

button.

Each time the button is pressed, the angle of the horizontal vane is changed in
sequence:

(1) → (2) → (3) → (4) → (SWING) → (AUTO)

SWING OPERATION

Use the swing operation for the air flow to reach all corners of the room.

Recommended horizontal vane range for more efficient air-conditioning

Use the (AUTO) position usually.
Use position (1) in the COOL or DRY mode and
use positions (2) to (4) in the HEAT mode when

adjusting to your requirements.

FAN

VANE

1

2

3

4

HEAT

COOL

DRY

MODE

AIR FLOW velocity and direction can be selected as required.

• Immediately after the air conditioner starts operating,
the vane stays at horizontal position. Once the air
from the indoor unit becomes sufficiently warm, the
vane moves to position (4).

• Once the air conditioner starts operating, the fan
speed increases gradually as the air from the indoor
unit gets warmer, and continues until the set speed
is finally reached.

At the start
of heating
operation

Horizontal
position

When air
becomes
warm…

Position (4)

Very small
air flow

• Immediately after the air conditioner starts operating,
the vane stays at horizontal position. Once the air
from the indoor unit becomes sufficiently warm, the
vane moves to the position corresponding to the set
direction of air flow.

• Once the air conditioner starts operating, the fan
speed increases gradually as the air from the indoor
unit gets warmer, and continues until the set speed
is finally reached.

• The vane moves intermittently between positions (2)
and (4). The vane stops for a brief period at positions
(2) and (4).

At the start
of heating
operation

Horizontal
position

Very small
air flow

When air
becomes
warm…

Set position

Adjust the vane before operation starts.
Since the horizontal vane moves automatically, your fingers may be caught.

To change the air flow direction not to blow directly onto your body.

To change the air

flow direction

Pressing and holding

the

VANE

button for 2

seconds or more
causes the horizontal
vane to reverse and
move to horizontal
position.

Horizontal
position

When to use this function?

Use this function if you don’t
want the air from the indoor
unit to blow directly onto your
body.

• Depending on the shape of
the room, the air may blow
directly onto your body.

• Press the

VANE

button again

to return the vane to the
previously-set position.

COOL/DRY

The air conditioner starts the
cooling or drying operation
approx. 3 minutes after the
vane has moved to the
horizontal position.

• When the

VANE

button is

pressed again, the vane
returns to the previouslyset
position and the air
conditioner starts the
cooling or drying operation
in approx. 3 minutes.

HEAT

The air conditioner starts heat­ing operation approx. 3 min­utes after the vane has moved
to the horizontal position.

• Sometimes the area around
your feet may not warm. To
warn the area around the
feet, set the horizontal vane
to (AUTO) or the
downwardblowing position.

• When the

VANE

button is

pressed again, the vane
returns to the previously-set
position and the air condi­tioner starts heating opera­tion in approx. 3 minutes.

■

To change the horizontal direction of the air flow, move the vertical vane manually.

NOTE:

• If you make the air flow not to blow directly onto your body by pressing

VANE

button, the compressor stops for 3 minutes

even during the operation of the air conditioner.

• The air conditioner operates with decreased air flow until the compressor turns on again.

(2)

(4)

9

WHEN THE AIR CONDITIONER IS NOT GOING TO BE
USED FOR A LONG TIME

When it is not going to be used for a long
time:

1 Perform the FAN operation for 3 or 4 hours

to dry the inside of the air conditioner.

• To perform FAN operation, set the remote controller
to the highest temperature in the MANUAL COOL
mode. (Refer to page 7.)

2 Turn off the breaker and/or disconnect the

power supply plug.

CAUTION:
Turn off the breaker or disconnect the power supply plug
when the air conditioner is not going to be used for a
long time.
Dirt may collect and this may cause a fire.

3 Remove the batteries from the remote con-

troller.

CAUTION:
To prevent liquid leakage, take out all batteries when the
remote controller is not going to be used for a long time.

When the air conditioner is to be used
again:

1 Clean the air filter and install it in the indoor

unit.

(Refer to page 10 for cleaning instructions.)

2 Check that the air inlet and outlet of the in-

door/outdoor units are not blocked with any
obstacles.

3 Check that the earth is connected correctly.

CAUTION:
Earth the unit.
Do not connect the earth to a gas pipe, water pipe,
lightning rod or the earth of a telephone. If the earthing
is incorrect, it may cause an electric shock.

FAN

button, the

TOO

WARM

or

TOO

COOL

button and ON/OFF timer (explained below)

How to set the OFF timer

1 Press the button during operation.

Each time the button is pressed, the OFF timer mode
alternates between ON and OFF.

2 Set the time of the timer using the TIME but-

tons (Forward) and (Backward).

Each time the button is pressed, the set time in­creases by 10 minutes; each time the

button is

pressed, the set time decreases by 10 minutes.

To release the OFF timer:

■

Press the button.

MAINTENANCE

Before starting maintenance

■

Turn off the breaker and/or disconnect the
power supply plug.

CAUTION:
When the unit is to be cleaned, switch it off and
disconnect the power supply plug or turn off the breaker.
Since the fan rotates at high speed during operation, it
may cause an injury.

Cleaning the indoor unit

■

Clean the unit using a soft dry cloth.

• If the dirt is noticeable, wipe the unit with a cloth
soaked in a solution of mild detergent diluted in
lukewarm water.

• Do not use gasoline, thinner, benzine, polishing
powder, or insecticide. The unit may be damaged.

• The front panel may come off if it is lifted up past its
level position. If the front panel comes off, refer to
step 3 in CLEANING THE FRONT PANEL.

ECONO COOL

ECONO COOL

VANE

STOP

STOP

Heat exchanger

■ Remove the catechin air filter before cleaning

the heat exchanger.

You can sweep the surface of heat exchanger if you install
the brush of QUICK CLEAN KIT to your vacuum cleaner.
Please refer to the instructions described in QUICK CLEAN
KIT for details.

WARNING:

• Do not touch the heat exchanger directly with your
hands. Otherwise you may get injured. (It’s
recommended to protect your hands with a pair of
gloves.)

CAUTION:

• Do not step onto an unstable bench when cleaning.
Otherwise you may fall down and get injured.

• Use only the brush of QUICK CLEAN KIT. Do not use
other stuffs. Otherwise the heat exchanger of the
indoor unit may get damaged.

Optional product

Name of parts Quick Clean Kit

Parts number MAC-093SS-E

Optional product is available from your local dealer.

NOTE:
The QUICK CLEAN KIT can only be fitted to a vacuum
cleaner with a hose/tube diameter (inside diameter) of
32 to 39 mm. Refer to the instructions of the QUICK
CLEAN KIT.

Fan

Refer to page 12 for cleaning the fan.

Heat exchanger

CLEANING THE CATECHIN AIR FILTER

Cleaning the catechin air filter (about once every 2 weeks)

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

What is “Catechin air filter”?

The air filter is dyed with a natural material, catechin, that is contained in tea. The catechin air filter deodorizes
odor and noxious gases such as formaldehyde, ammonia, and acetaldehyde. Moreover, it restraints the activity of
the viruses adhering to the filter.

1 Remove the catechin air filter.

CAUTION:
When the catechin air filter is to be removed, do not touch
the metal parts of the indoor unit.
This may cause an injury.

2 Remove dirt from the catechin air filter us-

ing a vacuum cleaner or by washing the fil­ter with water.

• Do not wash with scrubbing brush or hard surface
of sponge. Otherwise, the filter may deform.

• If the dirt is noticeable, wash the filter with a solution
of mild detergent diluted in lukewarm water.

• If hot water (50 °C or more) is used, the filter may
be deformed.

3 After washing with water/lukewarm water, dry

the catechin air filter well in the shade.

• Do not expose the catechin air filter to direct sunlight
or heat from a fire when drying it.

4 Install the catechin air filter.

(Securely install its tabs.)

Install.

Open the front panel, then
remove/replace the filter.

Remove.

Catechin air
filter

11

3 Soak the filter together with its frame in luke-

warm water and wash it.

■ If the dirt is noticeable, use a solution of mild
detergent diluted in lukewarm water.

■ If hot water (50°C or more) is used, the filter may be
deformed.

■ Do not use a scrubbing brush or sponge. This may
damage the surface of the filter.

■ Do not use a chlorine detergent.

4 After rinsing with water/lukewarm water,

shake off the excess water and dry the filter
well in the shade.

■ Do not expose the filter to direct sunlight or heat
from a fire when drying it.

REPLACEMENT OF THE AIR CLEANING FILTER

When the capacity is lowered because of dirt, etc., it is necessary to replace the air cleaning filter.

Air cleaning filter replacement (about once every year)

1 Remove the catechin air filter (left one).

The air cleaning filter is not attached to the right side
catechin air filter.

2 Pull up the tabs on both sides of the air clean-

ing filter with your finger and remove the air
cleaning filter (blue bellows type) from the
catechin air filter.

3 Attach a new air cleaning filter to the catechin

air filter so that all 8 tabs on the catechin air
filter are securely installed.

4 Install the catechin air filter. (Securely install

its tabs.)

5 Securely close the front panel.

Catechin air
filter

Catechin air filter
(Back side)

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

Air cleaning filter

• If the air cleaning filter is clogged, it may lower the unit’s capacity or cause condensation at the air outlet.

• The air cleaning filter is disposable. The standard usable term is about 1 year.

Optional parts Optional parts are available from your local dealer.

Name of parts

Parts number MAC-415FT-E

This optional part is for the replacement of the left side filter only. No optional part is available for the right side filter.

AIR CLEANING FILTER

(Anti-Allergy Enzyme Filter)

Upward.

12

Stopper

Unlock.

2 Hold the tab of each vertical vane and move the

vertical vanes in the directions of the arrows.
The vanes cannot be removed.

Swing to the left.

Swing to the right.

Cannot be
removed.

4 Clean the air outlet and fan of the indoor unit. (Make sure the fan has stopped.)

• Be careful not to injure your hands.

• If the air outlet or fan is dirty, moldy, or dusty, clean with a wet or dry soft cloth or with the brush of QUICK

CLEAN KIT which is installed to a vacuum cleaner. If the dirt is noticeable around the air outlet, clean with
a cloth soaked in a solution of mild detergent diluted in lukewarm water.

• Please refer to the instructions described in QUICK CLEAN KIT for the details of the way to clean with the
brush of QUICK CLEAN KIT.

• Do not use gasoline, benzine and polishing powder.

• Do not use excessive force to the fan. Otherwise, it may be cracked.

Groove

1

2

Stopper

Insert this end first.

Left

Lock.

5 Put the vertical vanes back to their original positions one by one.

2

Push each vertical vane until it clicks into place.

1

Hold the tab of each vertical vane and insert the
vertical vanes into their respective grooves.

• Be sure to hold the tabs to install the vertical vanes, otherwise the vanes can be damaged.

• Do not use excessive force to the fan guard during this procedure. The fan guard may be deformed and

the vanes may not work properly.

• Put the vertical vanes back correctly to their original positions. Otherwise, condensed water may drip
down from the indoor unit or the horizontal vane could malfunction.

6 Install the horizontal vanes. (Reverse the removal procedures.)

Insert the power supply plug into the power outlet and/or turn on the breaker.
Check that all LED lamps are not blinking.
If they are blinking, the horizontal vane is not installed correctly.
In this case, disconnect the power supply plug and/or turn off the breaker, and then reinstall the horizontal vane by
following the procedures in step 6.

• If you operate the air conditioner after cleaning the air outlet and fan, do not get close to the air outlet as
any remaining dirt may be discharged.

After Cleaning

In procedure 2 lock the stoppers until they click into place.

13

Question

The air conditioner cannot
be operated for about 3
minutes when restarted.

Cracking sound is heard.

The air from the indoor unit
smells strange.

The fan of the outdoor unit
does not rotate even though
the compressor is running.
Even if the fan starts to rotate,
it stops soon.

The sound of water flowing
is heard.

The sound as burbling is
heard.

The room cannot be cooled
sufficiently.

Mist is discharged from the
air outlet of the indoor unit.

Mechanical sound is heard
from the indoor unit.

The swing operation of the
HORIZONTAL VANE is
suspended for about 15
seconds, then restarted.

Answer (not a malfunction)

• This protects the air conditioner according to
instructions from the microprocessor. Please
wait.

• This sound is generated by the expansion/
contraction of the front panel, etc. due to change
in temperature.

• The air conditioner may suck in an odor adhering
to the wall, carpet, furniture, cloth, etc. and blow
it out with the air.

• When the outside temperature is low, the fan
may not operate to maintain sufficient cooling
capacity.

• This is the sound of refrigerant flowing inside the
air conditioner.

• This is the sound of condensed water flowing in
the heat exchanger.

• This is the sound of the heat exchanger
defrosting.

• This sound is heard when the outside air is
absorbed from the drain hose in turning on the
range hood or the ventilation fan and that makes
water flowing in the drain hose spout out. This
sound is also heard when the outside air blows
into the drain hose in case the outside wind is
strong.

• When a ventilation fan or a gas cooker is used
in a room, the cooling load increases, resulting
in an insufficient cooling effect.

• When the outside air temperature is high, the
cooling effect may not be sufficient.

• The cool air from the air conditioner rapidly cools
moisture in the air inside the room, and it turns
into mist.

• This is the switching sound in turning on/off the
fan or the compressor.

• This is for the swing operation of the
HORIZONTAL VANE to be performed normally.

WHEN YOU THINK THAT TROUBLE HAS OCCURRED

Question

The air flow direction
changes during operation.
The direction of the
horizontal vane cannot be
adjusted with the remote
controller.

Water leaks from the
outdoor unit.

White smoke is discharged
from the outdoor unit.

Air does not blow out soon
in the heating operation.

The operation is stopped
for about 10 minutes in the
heating operation.

Hissing sound is sometimes
heard.

The room cannot be heated
sufficiently.

In a multi-unit system, the
indoor unit which is not
operating becomes warm
and a sound, similar to
water flowing, is heard from
the unit.

The air conditioner starts
the operation only with the
main power turned on,
though you do not operate
the unit with the remote
controller.

Answer (not a malfunction)

• When the air conditioner is operated in COOL
or DRY mode, if the operation continues with air
blowing down for 1 hour, the direction of the air
flow is automatically set to position (1) to prevent
condensed water from dropping.

• In the heating operation, if the air flow
temperature is too low or when defrosting is
being done, the horizontal vane position is
automatically set to horizontal.

• During COOL and DRY operations, pipe or pipe
connecting sections are cooled and this causes
water to condense.

• In the heating operation, the defrosting operation
makes water frozen on the outdoor unit melt and
drip down.

• In the heating operation, water condensed on
the heat exchanger drips down.

• In the heating operation, vapor generated by the
defrosting operation looks like white smoke.

• Please wait as the air conditioner is preparing
to blow out warm air.

• Defrosting of the outdoor unit is being done
(Defrosting operation).
Since this is completed in 10 minutes, please
wait. (When the external temperature is too low
and humidity is too high, frost is formed.)

• This is the sound when the flow of refrigerant
inside the air conditioner is switched.

• When the outside air temperature is low, the
heating effect may not be sufficient.

• A small amount of refrigerant continues to flow
into the indoor unit even though it is not
operating.

• These models are equipped with an auto restart
function. When the main power is turned off
without stopping the air conditioner with the
remote controller and is turned on again, the air
conditioner will start operation automatically in
the same mode as the one set with the remote
controller just before the shutoff of the main
power.

CAUTION:

• Earth the unit.
Do not connect the earth to a gas pipe, water pipe, lightning rod or the earth of a telephone. If the earthing is
incorrect, it may cause an electric shock.

• Install an earth leakage breaker depending on the place where the air conditioner is to be installed (humid places,
etc.).
If the earth leakage breaker is not installed, it may cause an electric shock.

Inspection and maintenance

• When the air conditioner is used for several seasons, the capacity may be lowered due to dirt inside the unit.

• Depending on the condition, an odor may be generated or dehumidified water may not drain out smoothly due to dirt,

dust, etc.

• It is recommended that the unit be inspected and maintained (charged) by specialist in addition to normal maintenance.
Consult your dealer.

Operating sound considerations

• Do not put an object around the air outlet of the outdoor unit. This may lower the capacity or increase the volume of the
operating sound.

• If an abnormal sound is heard during operation, consult your dealer.

Relocation

• When the air conditioner is to be removed or re-installed because of rebuilding, moving, etc., special techniques and
work are required.

WARNING:
Repairs or relocation should not be done by the customer.
If this is done incorrectly, it may cause a fire, an electric shock, or an injury from the unit falling, water leaking, etc.
Consult your dealer.

Disposal

To dispose of this product, consult your dealer.

If you have any questions, consult your dealer.

To prevent the effects
of a fluorescent lamp,
keep as far apart as
possible.

wall, etc.

Inverter-type
fluorescent lamp

Keep a space
to prevent the
picture
distortion or
the noise.

1 m
or more

Radio

100 mm or
more

Well­ventilated
dry place

200 mm or
more

TV

Cordless
phone or
Portable
phone

3 m
or more

1 m
or more

The installation location of the outdoor unit should be
at least 3 m away from the antennas for TV sets,
radios, etc. In areas where the reception is weak, pro­vide greater space between the outdoor unit and the
antenna of the affected device if operation of the air
conditioner interferes with radio or TV reception.

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODAKU, TOKYO 100-8310, JAPAN

SG79Y987H01

SG79Y987H01_Cover.p65 07.4.16, 0:05 PM2