Toshiba MMU-AP0091H Safety guide

R410A
FILE NO. A05-012
OWNER’S MANUAL / INSTALLATION MANUAL
Indoor Unit
<4-way Air Discharge Cassette Type>
MMU-AP0091H, AP0121H, AP0151H,
MMU-AP0181H, AP0241H, AP0271H,
MMU-AP0301H, AP0361H, AP0481H
MMU-AP0561H
<2-way Air Discharge Cassette Type>
MMU-AP0071WH, AP0091WH, AP0121WH,
MMU-AP0151WH, AP0181WH, AP0241WH,
MMU-AP0271WH, AP0301WH, AP0481WH*
* CHINA market only
<1-way Air Discharge Cassette Type>
MMU-AP0071YH, AP0091YH, AP0121YH,
MMU-AP0151SH, AP0181SH, AP0241SH,
MMU-AP0152SH, AP0182SH, AP0242SH
<Concealed Duct Standard Type>
MMD-AP0071BH, AP0091BH, AP0121BH, AP0151BH,
MMD-AP0181BH, AP0241BH, AP0271BH, AP0301BH,
MMD-AP0361BH, AP0481BH, AP0561BH
<Concealed Duct High Static Pressure Type>
MMD-AP0181H, AP0241H, AP0271H,
MMD-AP0361H, AP0481H
<Slim Duct Type>
MMD-AP0071SPH, AP0091SPH, AP0121SPH,
MMD-AP0151SPH, AP0181SPH
<Under Ceiling Type>
MMC-AP0151H, AP0181H, AP0241H,
MMC-AP0271H, AP0361H, AP0481H
<High Wall Type>
MMK-AP0071H, AP0091H, AP0121H,
MMK-AP0151H, AP0181H, AP0241H,
MMK-AP0072H, AP0092H, AP0122H
<Floor Standing Cabinet Type>
MML-AP0071H, AP0091H, AP0121H,
MML-AP0151H, AP0181H, AP0241H
<Floor Standing Concealed Type>
MML-AP0071BH, AP0091BH, AP0121BH,
MML-AP0151BH, AP0181BH, AP0241BH
<Floor Standing Type>
MMF-AP0151H, AP0181H, AP0241H,AP0271H,
MMF-AP0361H, AP0481H, AP0561H
Outdoor Unit
<Inverter Unit>
MMY-MAP0802FT8
MMY-MAP1002FT8
MMY-MAP1202FT8
Heat RecoveryType
PRINTED IN JAPAN, Aug, 2005 ToMo
The indoor unit in Super Heat Recovery Multi System is common to one in Super Modular Multi System air conditioner.
Therefore refer to the service manuals for A03-009, A03-010, and A03-011 separately issued.
System air conditioner
Flow Selector Unit (FS unit)
RBM-Y1122FE
RBM-Y1802FE
RBM-Y2802FE

ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
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 SUPER HRM Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the
conventional refrigerant R22 in order to prevent destruction of the ozone layer.
Be sure to use an indoor or outdoor unit in combination with the new refrigerant.
Thank you very much for purchasing TOSHIBA SUPER HRM Air conditioner.
Please read this manual carefully before using your Flow Selector unit.
• When installing an indoor or outdoor unit, follow the installation manual supplied with the unit.
• To connect the Flow Selector unit to an outdoor unit with pipes, a branching joint or header is required.
Choose one according to the capacity of the units.
• Nitrogen gas is filled in the selection unit. Be careful when removing flare nuts.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
Thank you very much for purchasing TOSHIBA Air Conditioner.
• This manual describes the installation method at the outdoor unit side.
• Before installation, please read this Manual thoroughly to perform correct installation.
• For pipe connection for the indoor and outdoor units, flow selector unitY-shape branching joint or branch
header required sold separately. Select it according to the capacity.
• For pipe connection between the outdoor units, T-shape branching joint which is sold separately is required.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
Thank you very much for purchasing TOSHIBA Air Conditioner.
• This manual describes the installation method at the outdoor unit side.
• Before installation, please read this Manual thoroughly to perform correct installation.
• For pipe connection for the indoor and outdoor units, flow selector unitY-shape branching joint or branch
header required sold separately. Select it according to the capacity.
• For pipe connection between the outdoor units, T-shape branching joint which is sold separately is required.

CONTENTS
OWNER’S MANUAL (EH99920601-R)
PRECAUTIONS FOR SAFETY ........................................................................................................... 1
NAME OF EACH PART ....................................................................................................................... 3
PARTS NAME OF REMOTE CONTROLLER...................................................................................... 6
CORRECT USAGE.............................................................................................................................. 8
ADJUSTMENT OFWIND DIRECTION ............................................................................................... 9
TIMER OPERATION.......................................................................................................................... 16
INSTALLATION.................................................................................................................................. 17
MAINTENANCE................................................................................................................................. 18
AIR CONDITIONER OPERATIONS AND PERFORMANCE ............................................................ 22
RE-INSTALLATION ........................................................................................................................... 23
WHENTHE FOLLOWING SYMPTOMS ARE FOUND...................................................................... 24
INSTALLATION MANUAL <OUTDOOR UNIT> (EH99842501-Q)
VOLUME-1
ACCESSORY PARTS ........................................................................................................................ 26
SAFETY CAUTION............................................................................................................................ 26
1 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER ............................................ 28
2 SELECTION OF INSTALLATION PLACE................................................................................ 29
3 OUTDOOR UNIT CARRYING IN ............................................................................................. 30
4 INSTALLATION OF OUTDOOR UNIT ..................................................................................... 31
5 REFRIGERANT PIPING........................................................................................................... 33
INSTALLATION MANUAL <FLOE SELECTOR UNIT> (EH99842401-Q)
Accessory parts and Parts to be procured locally ....................................................................... 65
1 PRECAUTIONS FOR SAFETY ................................................................................................ 65
2 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER ............................................ 67
3 SELECTION OF INSTALLATION PLACE................................................................................ 68
4 INATALLATION OF FLOW SELECTOR UNIT ......................................................................... 70
5 REFRIGERANT PIPING........................................................................................................... 72
6 ELECTRICWORK.................................................................................................................... 76
INSTALLATION MANUAL <OUTDOOR UNIT> (EH99842601-Q)
VOLUME-2
SAFETY CAUTION............................................................................................................................ 43
6 ELECTRICWIRING.................................................................................................................. 44
7 ADDRESS SETUP ...................................................................................................................50
8 SETTINGWHEN CONNECTING MULTIPLE INDOOR UNITSTO A FS UNIT ....................... 59
9 HOWTO SET UPTHE COOLING ONLY INDOOR UNIT......................................................... 60
10 TEST OPERATION................................................................................................................... 61
11 TROUBLESHOOTING ............................................................................................................. 63
OWNER’SINSTALLATION
OUTDOOR (VOLUME-1)
INSTALLATION
OUTDOOR (VOLUME-2)
INSTALLATION
FLOW SELECTOR UNIT

1
PRECAUTIONS FOR SAFETY
WARNING
Warning on installation
Be sure to leave the installation work to the dealer or a store
specializing.
The exclusive knowledge and technology are required for installation work.
Do not perform installation by yourself. If an incomplete installation is performed,
a fire, electric shock, injury, or water leakage may be caused.
Be sure to use the products sold separately which are specified by us.
For the products sold separately, be sure to use those specified by us. Otherwise,
a fire, electric shock, or water leakage may be caused. For installation work,
leave it to special engineer.
When installing the units in a small room, take measures so that the
refrigerant will not exceed the critical concentration if it leaks.
CAUTION
Related to countermeasures against the critical concentration, perform the installation work upon consul-
tation with the dealer. If the refrigerant leaks and exceeds the critical concentration, oxygen deficiency
may be caused.
Check whether earthing work is performed correctly.
A grounding is necessary. If the earthing work is incompletely, an electric shock may be caused.
(For details, conform to the local regulation in each area.)
Warning on use
Do not expose your body directly in cool air for a long time, or do not
cool you excessively.
It causes the worse of physical condition or trouble on health.
Never insert a finger or bar into the air inlet port or air outlet port of
air.
Since the fan rotates in high speed inside of the unit, an injury may be caused.
When a trouble (burnt smell, etc.) is felt, stop the operation, turn off
the power switch, and contact the dealer who you have
purchased the air conditioner.
If keeping operation as the air conditioner is defective, a fire, electric shock, or
trouble may be caused.
Do not use“Super HRM”for other than personal usage where the
ambient temperature may go down below –5°C.
For example, OA equipment/Electric device/Food/Animals and plants/Art object.
Warning on moving/repair
Never modify the air conditioner.
A fire or electric shock may be caused.
For repair, leave it to the dealer which you have purchased the air
conditioner.
If an incomplete repair is performed, a fire or electric shock may be caused.
When moving or re-installing the air conditioner, contact the dealer
which you have purchased the air conditioner or the special engi-
neer.
If an incomplete installation is performed, a fire, electric shock, injury, or water
leakage may be caused.

2
CAUTION
Caution on installation
Check the drain pipes are installed so that they can drain water
securely.
If the piping is incomplete, water leakage occurs resulted in moisture on
furniture.
Check the earth leakage breaker is attached.
It is necessary to attach an earth leakage breaker. Otherwise, it causes an
electric shock.
Check the air conditioner is installed at a place where flam-
mable gas will not leak.
If gas leaks and accumulates in the unit surroundings, an outbreak of fire
may be caused.
Check the outdoor unit is fixed on the base.
If it is not fixed securely on the base, an accident such as falling may be
caused.
Check fixing method
Do not clean the air conditioner with water.
An electric shock may be caused.
Do not put the combustible devices at a place where air from
the air conditioner flows directly.
Imperfect combustion of the combustible devices may be caused.
Diligently ventilate the room when operating the air conditioner
with the combustible devices.
If ventilation is incomplete, shortage of oxygen may be caused.
Check the installation plate, etc. is not damaged by use for a
long time.
If leaving them damaged, the unit may fall resulted in injury, etc.
Do not put plants and animals at a place where air from the air
conditioner flows directly.
Cause to affect on plants and animals may generate.
Do not put flammable spray, etc. near the air conditioner, or do
not spray directly on the air conditioner.
A fire may be caused.
Do not put vessels including water such as a vase on the unit.
Moisture floods in the unit, the electric isolation deteriorates, and an electric
shock may be caused.
Do not handle the switches with wet hands.
An electric shock may be caused.
Do not use the air conditioner for special purpose such as
storage of foods, plants and animals, precise equipment, and
art works.
Deterioration of quality may be caused.
OWNER’S

3
2-way discharge/3-way discharge
2-way discharge or 3-way discharge can be
selected according to the shape or
arrangement of the room.
For details, consult with the dealer which you
have purchased the air conditioner.
Air outlet/Air outlet flap
Select air blow direction in cooling or
heating operation each.
Air inlet grille
Air in the room is sucked from here.
Air filter
Removes dust and trash.
(Air filter is provided in the air grille.)
Earth screw
It is included in the electric
parts box.
Clip
The clip is to open/close the
air inlet grille.
Center panel
Air inlet
Air in the room is
sucked from here.
Air filter
Removes dust and trash.
(Air filter is provided in the center panel.)
Earth screw
It is included in the electric parts box. Air outlet/Air outlet flap
Select air blow direction in cooling or
heating operation each.
Air outlet/ Air outlet flap
Select air blow direction in
cooling or heating operation each.
Earth screw
It is included in the
electric parts box.
Air inlet grille
Air in the room is sucked from here.
Air filter
Removes dust and trash.
(Air filter is provided in the air inlet grille.)
Earth screw
It is included in the electric parts box.
Air outlet/
Air outlet flap
Select air blow direction in cooling
or heating operation each.
Air inlet grille
Air in the room is sucked
from here.
Air filter
Removes dust and trash.
(Air filter is provided in the air inlet grille.)
Indoor unit
[4-way Air Discharge CassetteType]
[2-way Air Discharge CassetteType]
[1-way Air Discharge CassetteType]
MMU-AP0071YH to AP0121YH MMU-AP0151SH to AP0241SH
MMU-AP0152SH, AP0182SH, AP0242SH
Button
Button to open/close
suction port
Air outlet/Air outlet flap
Change the direction of the air to be
discharged according to cool/heat mode.
Air filter
Removes dust or trash.
(Provided on the suction port.)
Suction port
Sucks air inside of the room from here.
Earth screw
It is included in the electric parts box.
Air filter
Removes dust or trash.
(Provided on the suction port.)
NAME OF EACH PART Sold Separately Parts
Main remote controller
RBC-AMT31E
Sub-remote controller
RBC-AS21E2
Wireless remote controller kit
TCB-AX21E2 RBC-AX22CE2 RBC-AX21U(W)-E2
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
˚C
TEST
SETTING

4
Weekly timer
RBC-EXW21E2
Central remote controller
TCB-SC642TLE2
WEEKLY TIMER
ERROR
SuMoTuWeTh Fr Sa
PROGRAM1
PROGRAM2
PROGRAM3
SELECT ZONE
CL
SET
GROUP
CODE
No.
UNIT No.
No.
R.C.
TEST
ZONE
ALL
ZONE
GROUP
SETTING
1234
SET DATA
[Concealed DuctType]
[Concealed Duct, High Static PressureType]
[Slim DuctType]
[Under CeilingType]
[HighWallType]
MMK-AP0071H to AP0241H
MMK-AP0072H to AP0122H
Air outlet flange
Discharge duct is connected. Earth screw Earth screws are provided
in the electric parts box.
Air filter
Removes dust and trash.
(Air filter is provided in the air inlet grille.)
Air inlet
Air in the room is sucked from here.
Air outlet
Discharge duct is connected. Air inlet Suction duct is connected.
Earth screw
Earth screws are provided
in the electric parts box.
Drain pan
Air inlet grille Earth screw
Air filter Air outlet/Air outlet flap
Air in the room is sucked from here.
Removes dust and trash.
(Air filter is provided in
the air inlet grille.)
Earth screws are provided
in the electric parts box.
Change the direction of the air
to be discharged according to
cool/heat mode.
Earth screw
Button
Air filter
Removes dust or trash.
(Provided on the suction port.) Air outlet/Air outlet flap
Air inlet port
Earth screws are provided in
the electric parts box.
Change the direction of the air
to be discharged according to
cool/heat mode.
The air in the room is sucked
in from this port.
Air inlet grille Earth screw
Air in the room is
sucked from here.
Air outlet/Air outlet flap
Earth screws are provided
in the electric parts box.
Change the direction of the air
to be discharged according to
cool/heat mode.
Air filter
Removes dust and trash.
(Air filter is provided in
the air inlet grille.)
Air inlet
Suction duct is
connected.
Earth screw
It is included in the
electric parts box.
Air filter
(Air filter is not provided to
some models in the series.) Air outlet
Discharge duct is connected.
Button to open/close the
suction port

5
Air outlet/Air outlet flap
Exchanges the air direction according to
cooling or heating time.
Earth screw
It is prepared in the electric parts box.
Air inlet port
Sucks air inside of the room from here.
Air filter
Removes dirt or dust.
(It is included in the suction port.)
Air outlet port
Drain pan (With drain filter)
This accessory is installed at the local site.
Air filter
Removes dirt or dust.
(It is included in the suction port.)
Air inlet port
Sucks air inside of the room from here.
Earth screw
It is prepared in the electric parts box.
Earth screw
It is prepared in the electric parts box.
Front panel (Lower side)
Vertical flap
The air can be automatically discharged
rightward/leftward at stated periods.
Fixing metal holder
Horizontal flap/Air outlet port
Exchanges the air direction according
to cooling or heating time.
Air filter
Removes dirt or dust.
Air inlet port
Sucks air inside of the room from here.
Fixing metal holder (Right and left)
Drain pan
Water accumulated in the drain pan is
drained from here through the drain pipe.
Air inlet
They are provided at front, rear, left,
and right sides.
Fixing leg
Air outlet (Discharge)
Hot air is discharged when cooling operation is performed.
Cold air is discharged when heating operation is performed.
Power source hole
Refrigerant pipe connecting hole
Connecting valve is included inside here.
Outdoor unit
[Floor Standing CabinetType]
[Floor Standing ConcealedType]
[Floor StandingType]

6
1 SET DATA display
Displayed during setup of the timer.
2 Operation mode select display
The selected operation mode is displayed.
3 CHECK display
Displayed while the protective device works or
a trouble occurs.
4 Timer time display
Time of the timer is displayed.
(When a trouble occurs, the check code is
displayed.)
5 Timer SETIN setup display
When pushing the Timer SETIN button, the
display of the timer is selected in order of
[OFF] →[OFF] repeat OFF timer →
[ON] →No display.
6 Filter display
If “FILTER ”is displayed, clean the air filter.
7 TEST run display
Displayed during a test run.
8 Flap position display
(for 4-Way Air Discharge CassetteType
and Under CeilingType model only)
Displays flap position.
9 SWING display
Displayed during up/down movement of the
flap.
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 or the mode enters in LOW.
13 Operation ready display
Displayed when cooling or heating operation is
impossible because the outdoor temperature goes
out of the operable range.
14 No function display
Displayed if there is no function even if the button is
pushed.
15 Air volume select display
The selected air volume mode is displayed.
(AUTO) (HIGH)
(MED.) (LOW)
In the Concealed Duct High Static Pressure type
models, [HIGH] only is displayed for the air speed.
16 Mode select control display
Displayed when pushing “Operation mode select ”
button while the operation mode is fixed to heating
or cooling by the system manager of the air condi-
tioner.
17 Central control display
Displayed when using the remote controller together
with the central control remote controller, etc.
If Remote controller is prohibited at the
centralcontrol side, flashes when operating
ON / OFF
,
MODE
, / buttons and
the change is not accepted.
(The contents available to be set up on the remote
controller differ according to the central control
mode.For details, refer to Owner’s Manual of the
central control remote controller.)
PARTS 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, [SET DATA] 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
[SET DATA] display has disappeared, and then use the remote controller.
Display
section
Operation
section
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
2
15
5
78 9
3
1
4
6
10
11 13
16
12 14
17
CODE No.
UNIT No.
TEST SETTING
DATA SET
R.C. No.
H

7
Operation section
Push each button to select a desired operation.
This remote controller can operate the maximum 8 indoor units.
•The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing
ON / OFF
button only.
1 Air volume select button
Selects the desired air volume mode.
The Concealed Duct High Static Pressure type
models cannot be operated.
2 Timer set button
TIMER SET button is used when the timer is
set up.
3 Check button
The CHECK button is used for the check
operation. During normal operation, do not
use this button.
4 Fan button
FAN button is used when a fan which is sold on
the market or etc.is connected.
•If is displayed on the remote controller
when pushing the FAN button, a fan is not
connected.
5 Filter reset button
Resets (Erases) “FILTER ”display.
6 Wind direction and Swing
UNIT
:
If the multiple indoor units are operated by only
one remote controller, select the units when
the air direction is adjusted.
SWING/FIX
:
Set up the auto swing and angle of the flap.
•This function is not provided to Concealed
Duct StandardType, High Static Pressure
Type, Floor standing CabinetType, Floor
Standing ConcealedType, or Slim DuctType.
7 Operation lamp
Lamp is lit during the operation.Lamp is off
when stopped.
Although it flashes when operating the protec-
tion device or abnormal time.
8
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.
9 Operation select button
Selects desired operation mode.
10 Set up temperature button
Adjusts the room temperature.
Set the desired set temperature by pushing
or .
OPTION :
Remote controller sensor
Usually theTEMP.sensor of the indoor unit senses
the temperature.The temperature on the surround-
ing of the remote controller can also be sensed.
For details, contact the dealer from which you have
purchased the air conditioner.
•In case that one remote controller controls the
multiple indoor units, the setup operation is
unavailable in group control.
17
3
5
2
8
9
6
4
10
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET

8
1 Push
ON / OFF
button.
The operation lamp goes on, and the operation starts.
2 Select an operation mode with the
MODE
button.
One push of the button, and the display
changes in the order shown on the right.
•“DRY mode”function is not provided to
Concealed Duct High Static PressureType.
3 Select air volume with
FAN
button.
One push of the button, and the display changes in the order shown on the right.
•When air volume is “AUTO ”, air volume differs according to the temperature difference between
set temperature and room temperature.
•In DRY mode, “AUTO ”is displayed and the air volume is LOW.
•In heating operation, if the room temperature is not heated sufficiently with volume “LOW ”operation,
select “MED. ”or “HIGH ”operation.
•The temperature which the temperature sensor detects is one near the air inlet of the indoor unit.
Therefore it slightly differs from the room temperature according to the installation status.The setup
value is a criterion of the room temperature. (Automatic air speed cannot be selected in FAN mode.)
•Air volume of function is not provided to“Concealed Duct High Static PressureType”but air speed
“HIGH ”only is displayed.
4 Determine 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.
CORRECT USAGE
When you use the air conditioner for the first time or when you change the SET DATA value, follow the proce-
dure 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.
•Do not turn off the leak breaker while the air conditioner is used.
•Turn on the leak breaker 12 hours or more before start of operation after the air conditioner has stopped
for a long time.
1
3 2
4
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
HEAT DRYAUTO COOL FAN
(Dehumidity)
LOWMED.HIGH AUTO

9
REQUIREMENT
[In Cooling operation]
•The operation starts after approx. 1 minute.
[In Heating operation]
•In heating operation, the fan operation may continue for approx.30 seconds after the air conditioner has
stopped.
•The indoor fan continues preheat operation for 3 to 5 minutes under stop condition, and then blows out
the hot air.
(display on the remote controller display part goes on.)
•When temperature of the room has reached the setup temperature and the outdoor unit stops, the air
speed becomes super low and the air volume extremely is lessened.
•In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF is displayed.
[In Automatic operation]
•Using the difference between the setup temperature and the room temperature, the heating or cooling
operation is automatically performed.
ADJUSTMENT OFWIND DIRECTION
To increase the cooling or heating effect, be sure to use the discharge flap in the different
directions in cooling or heating operation.
As the characteristics of the air, the cold air accumulates at lower side and hot air at upper side, respectively.
CAUTION
Set the louver horizontally in cooling operation.
If cooling operation is performed with downward discharge, the surface of the discharge port or louver will
be wet with dew, and dewdrop may fall down.
REQUIREMENT
•If heating operation is performed with horizontal discharge, unevenness of temperature may increase in
the room.
4-way Air Discharge CassetteType
•While the air conditioner stops, the discharge flap automatically directs downward.
•While the air conditioner is in ready status for heating,
the discharge flap directs upward.
The swinging operation starts after heating ready status
has been cleared, but“SWING ” is displayed on the
remote controller even if the status is ready to heating.
[In Cooling operation]
Use the discharge flap with horizontal set point.
[In Heating operation]
Use the discharge flap with downward set point.

10
How to set up the air direction
Push
SWING/FIX
button.
1 Every pushing the button, the air direction changes.
In Heating operation
Set the air outlet flap downward.
If directing it upward, the hot air may not come to the foot.
In Cooling / Dry operation
Set the air outlet flap upward.
If directing it downward, the dew may fall on near the air discharge port or it drips.
How to start swinging
2 Push
SWING/FIX
button.
Set direction of the air outlet flap to the
lowest position and then push
SWING/FIX
button
again.
•[SWING ] is displayed and the air direction
automatically changes upward/downward.
In case when one remote controller controls
the multiple indoor units, each indoor unit can
be selected and its air direction can be set up.
How to stop swinging
3 Push
SWING/FIX
button again during swinging of
the air outlet flap.
•The air outlet flap can be stopped at the
desired position. After then the air direction
can be again set up from the uppermost
position by pushing
SWING/FIX
button.
* While the air outlet flap is set downward in
cooling/drying operation, it does not stop.
If stopping the air outlet flap which directs
downward during swinging, it stops after
moving to the 3rd position from the top
position.
4
UNIT
•To set up the air direction individually, push
UNIT
button to display each indoor unit No.in
a group control.Then set up the air direction to
a displayed indoor unit.
•If there is no display, all the indoor units can be
operated collectively.
•Every pushing
UNIT
button, the display
exchanges as shown in the figure.
Initial setup
Initial setup
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
In FAN operation
1, 2, 3 4
In all modes
Display when stopping the swing
Initial setup
Series of
operation
Fan/Heat
operation Cool/Dry operation
Unit No. 1-1No display Unit No. 1-2
Unit No. 1-4 Unit No. 1-3

11
According to the shape or arrangement of the room, the cold air and hot air can be discharged for two direc-
tions or three directions.For details, contact the dealer.
INFORMATION
•If cooling operation is performed with downward discharge, dew may fall on surface of the cabinet or the
horizontal flap resulted in dripping.
•If heating operation is performed with horizontal discharge, unevenness of temperature may increase in
the room.
•Do not move the horizontal flap directly with hands;otherwise a trouble is caused.Select direction of the
horizontal flap using flap operation switch on the remote controller.The horizontal flap does not stop
immediately even if the switch is pushed.Adjusting the stop position, push the switch.
2-way Air Discharge CassetteType
[In Cooling operation]
Use the air outlet flap with horizontal set point.
[In Heating operation]
Use the air outlet flap with downward set point.
Setup of air direction and swinging
1 Push
SWING/FIX
button during operation.
•[SWING ] is displayed and the air direction automatically changes upward/downward.
In case when one remote controller controls the multiple indoor units, each indoor unit can be selected
and its air direction can be set up.
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
1, 2 3
2 Push
SWING/FIX
button again during swinging of the air
outlet flapp.
•The air outlet flap can be stopped at the desired
position.
3
UNIT
•To set up the air direction individually, push
UNIT
button to display each indoor unit No. in a group
control.Then set up the air direction to a displayed
indoor unit.
•If there is no display, all the indoor units can be oper-
ated collectively.
•Every pushing
UNIT
button, the display exchanges as
shown in the figure.
1-way Air Discharge CassetteType (1H Series)
Adjustment of air direction upward/downward
[In Cooling operation]
In cooling operation, use the air outlet flap with horizontal set point so that the
cold air diffuses in whole room.
[In Heating operation]
In heating operation, use the air outlet flap with downward set point so that
the hot air blows at the foot.
Adjustment of air direction rightward/leftward
To change the discharge direction to right or left side, set the vertical grille
inside of the air outlet flap to the desired direction.
Setup of air direction and swinging
Refer to description of “2-way Air Discharge CassetteType”.
Unit No. 1-1No display Unit No. 1-2
Unit No. 1-4 Unit No. 1-3

12
Under CeilingType, 1-way Air Discharge CassetteType (2SH Series)
•While the air conditioner stops, the horizontal flap (Up/Down air direction adjustment plate)
automatically directs upward.
•While the air conditioner is in ready status for heating, the horizontal flap (Up/Down air direc-
tion adjustment plate) directs upward.The swinging operation starts after heating ready status
has been cleared, but“SWING ” is displayed on the remote controller even if the status is
ready to heating.
How to set up the air direction
Push
SWING/FIX
button during operation.
Initial setup
Initial setup
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
In FAN operation
1, 2, 3 4
In all modes
Display when stopping the swing
Initial setup
Series of
operation
Fan/Heat
operation Cool/Dry operation
In Heating operation
Set the horizontal flap (Up/Down
air direction adjustment plate)
downward. If directing it upward,
the hot air may not come to the
foot come to the foot.
In Cooling / Dry operation
Set the horizontal flap (Up/Down
air direction adjustment plate)
upward.If directing it downward,
the dew may fall on near the air
air outlet port or it drips.
How to start swinging
2 Push
SWING/FIX
button.
Set direction of the horizontal flap (Up/Down air
direction adjustment plate) to the lowest posi-
tion and then push
SWING/FIX
button again.
•[SWING ] is displayed and the air direction
automatically changes upward/downward.
In case when one remote controller controls the
multiple indoor units, each indoor unit can be
selected and its air direction can be set up.
How to stop swinging
3 Push
SWING/FIX
button again during swinging of the
horizontal flap.
•The horizontal flap can be stopped at the desired
position. After then the air direction can be again
set up from the uppermost position by pushing
SWING/FIX
button.
* While the horizontal flap is set downward in
cooling/drying operation, it does not stop.
If stopping the horizontal flap which directs
downward during swinging, it stops after moving
to the 3rd position from the top position.
4
UNIT
•To set up the air direction individually, push
UNIT
button to display each indoor unit No. in a group
control.Then set up the air direction to a dis-
played indoor unit.
•If there is no display, all the indoor units can be
operated collectively.
•Every pushing
UNIT
button, the display ex-
changes as shown in the figure.
1 Every pushing the button,the air direction changes.
Unit No. 1-1No display Unit No. 1-2
Unit No. 1-4 Unit No. 1-3

13
Right/Left air direction adjustment
To change the air outlet direction to right or left side, set the vertical flap inside of the horizontal flap to the
desired direction.
INFORMATION
•If cooling operation is performed with downward discharge,
dew may fall on surface of the cabinet or the horizontal flap
resulted in dripping.
•If heating operation is performed with horizontal discharge,
unevenness of temperature may increase in the room.
HighWallType
Adjustment of air direction upward/downward
[In Cooling operation]
In cooling operation, use the horizontal flap with horizontal set point
so that the cold air diffuses in whole room.
[In Heating operation]
In heating operation, use the horizontal flap with downward set point
so that the hot air blows at the foot.
REQUIREMENT
•If cooling operation is performed with downward air outlet, dew
may fall on surface of the cabinet or the horizontal flap resulted
in dripping.
•If heating operation is performed with horizontal air outlet,
unevenness of temperature may increase in the room.
•Do not move the horizontal flap directly with hands;otherwise a
trouble is caused.Select direction of the horizontal flap using
SWING/FIX
switch on the remote controller.The horizontal flap does
not stop immediately even if the switch is pushed.Adjusting the
stop position, push the switch.
Adjustment of air direction rightward/leftward
To change the air outlet direction to right or left side, set the vertical
flap inside of the horizontal flap to the desired direction.
Setup of air direction and swinging
1H series: Refer to description of “2-way Air Discharge Cassette
Type”.
2H series: Refer to description of “Under Ceiling Type, 1-way Air
Discharge CassetteType (2SH Series)”.

14
Floor Standing CabinetType
[In Cooling operation]
In cooling operation, use the air outlet flap with horizontal set
point so that the cold air diffuses in whole room.
[In Heating operation]
In heating operation, use the air outlet flap with downward set
point so that the hot air blows at the foot.
How to change the air outlet port
Change the air outlet port in the following procedure.
1 Take off two fixing screws of the air outlet port.
(The fixing screws are reused.)
2 Insert the hand into the air outlet port and push up it
a little, and then remove the air outlet port from the
claw hook at rear side.
3 Lift up the air outlet port upward and remove it.
4 Reverse the air outlet port and attach it to the main
unit.
Pay attention so that four claw hooks (two at rear and
lower sides each) are hooked at mounting position.
5 Be sure to tighten the air outlet port with the re-
moved fixing screws so that the air outlet port does
not come off.

15
Floor StandingType
Adjustment of air direction upward/downward
[In Cooling operation]
In cooling operation, move the flap with hands and use it with horizontal air outlet
point so that the cold air diffuses in whole room.
[In Heating operation]
In heating operation, move the flap with hands and use the horizontal flap with
downward set point so that the hot air blows at the foot.
Adjustment of air direction rightward/leftward
[In case of using unsymmetrical air directions]
Lift up the vertical flap lightly, direct it toward the desired
direction, and lower it.
In this case, do not use the Swing function.
INFORMATION
•If cooling operation is performed with downward air outlet, dew may fall on surface of the cabinet or the
horizontal flap resulted in dripping.
•If heating operation is performed with horizontal air outlet, unevenness of temperature may increase in
the room.
•Do not move the flap directly with hands during swing operation; otherwise a trouble is caused.
The vertical flap does not stop immediately even if the
SWING/FIX
button is pushed.Adjusting the stop
position, push the
SWING/FIX
button.
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
1, 2 3
[In case of automatic swing]
1 Push
SWING/FIX
button during operation.
•[SWING ] is displayed and the air direc-
tion automatically changes rightward/
leftward.
In case when one remote controller controls
the multiple indoor units, each indoor unit
can be selected and its air direction can be
set up.
2 Push
SWING/FIX
button again during swinging
of the horizontal flap.
•The horizontal flap can be stopped at the
desired position.
3 Swing button
UNIT
•To set up the air direction individually, push
UNIT
button to display each indoor unit No.
in a group control.Then set up the air
direction to a displayed indoor unit.
•If there is no display, all the indoor units can
be operated collectively.
•Every pushing
UNIT
button, the display
exchanges as shown in the figure.
1
2
In this case, do not use the
swing function.
Unit No. 1-1No display Unit No. 1-2
Unit No. 1-4 Unit No. 1-3

16
TIMER OPERATION
A type of timer operation can be selected from the following three types.
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
1 PushTIMER SET button.
•The timer display (type) changes for every
push of the button.
•SET DATA and timer time displays flash.
2 Push
TIME
to select“SETTIME”.
For every push of button, the set time increases in the unit of 0.5 hr (30 minutes).
The maximum set time is 72.0 hr.
For every push of button, the set time decreases in the unit of 0.5 hr (30 minutes).
The minimum set time is 0.5 hr.
3 Push SET button.
•
SETTING
display disappears and timer time display goes on.
(When ON timer is activated, timer time, ON timer are displayed and other displays disappear.)
Cancel of timer operation
4 Push CL button.
•TIMER display disappears.
NOTICE
•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.
4
3
2
1
ON / OFF
FAN
TEMP.
SWING/FIXTIME
MODE
VENT
UNITSET CL
FILTER
RESET
TEST
TIMER SET
OFF
(OFF timer) (Repeat OFF timer)
No display
(ON timer)
OFF ON

17
INSTALLATION
Installation location
WARNING
•Select a location for installation that will be able to safely bear the weight of the unit.
If the installation location is not strong enough to support the unit and the unit falls, injury could result.
CAUTION
•Do not install the unit in a location where combustible gases could conceivably leak.
Leaking gases that accumulate in the vicinity of the unit could be ignited by the unit.
REQUIREMENT
•A location that permits level installation of the unit
•A location that provides enough space to service the unit safely
•A location where water draining from the unit will not pose a problem
Avoid the following types of locations :
•Locations where salt is present in large amounts (seaside areas), or where sulfuric gases are present in
large amounts (hot springs areas)
(If the unit is to be used in such areas, special maintenance is necessary.)
•Locations that generate oils (including machine oils), steam, oily smoke, or corrosive gases
•Locations where organic solvents are used
•Locations in the vicinity of equipment that generates high frequency signals
•Locations where the outdoor unit will blow in the direction of a neighbor's window
•Locations where the noise of the outdoor unit will pose a problem
•Locations with poor air circulation
Electric wiring
WARNING
Check that earthing practice is correctly performed.
Grounding is necessary. If earthing practice is incomplete, an electric shock may be caused.
CAUTION
Check the circuit breaker is fitted.
Attaching the earth leakage breaker is necessary. Otherwise, an electric shock may be caused.
Make sure that correct capacity Fuses are used.
Using wire or copper wire may cause a fire or trouble.
For the power supply, use a circuit with rated voltage exclusive for air conditioner.
To disconnect the appliance from the main power supply.
This appliance must be connected to the main power supply by means of circuit breaker or a switch with a
contact separation of at least 3mm.