Toshiba RBM-Y1122FE INSTALLATION MANUAL

FILE NO. A05-012

O WNER’S MANUAL / INSTALLATION MANU AL

R410A

System air conditioner

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.

Heat Recovery T ype

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

MMD-AP0071BH, AP0091BH, AP0121BH, AP0151BH, MMD-AP0181BH, AP0241BH, AP0271BH, AP0301BH, MMD-AP0361BH, AP0481BH, AP0561BH

MMD-AP0181H, AP0241H, AP0271H, MMD-AP0361H, AP0481H

MMD-AP0071SPH, AP0091SPH, AP0121SPH, MMD-AP0151SPH, AP0181SPH

MMC-AP0151H, AP0181H, AP0241H, MMC-AP0271H, AP0361H, AP0481H

MMK-AP0071H, AP0091H, AP0121H, MMK-AP0151H, AP0181H, AP0241H, MMK-AP0072H, AP0092H, AP0122H

MML-AP0071H, AP0091H, AP0121H, MML-AP0151H, AP0181H, AP0241H

MML-AP0071BH, AP0091BH, AP0121BH, MML-AP0151BH, AP0181BH, AP0241BH

MMF-AP0151H, AP0181H, AP0241H,AP0271H, MMF-AP0361H, AP0481H, AP0561H

Outdoor Unit

Flow Selector Unit (FS unit)

MMY-MAP0802FT8 MMY-MAP1002FT8 MMY-MAP1202FT8

RBM-Y1122FE RBM-Y1802FE RBM-Y2802FE

PRINTED IN JAPAN, Aug, 2005 ToMo

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the con ventional refrigerant R22 in order to prevent destruction of the oz one 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 man ual and hand ov er it.

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the con ventional refrigerant R22 in order to prevent destruction of the oz one 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 unit Y-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 con ventional refrigerant R22 in order to prevent destruction of the oz one 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 unit Y-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 SUPER HRM Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to pre vent 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 y our Flow Selector unit.

• When installing an indoor or outdoor unit, follow the installation man ual 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.

CONTENTS

OWNER’S MANUAL (EH99920601-R)

PRECA UTIONS FOR SAFETY ........................................................................................................... 1

NAME OF EACH PART ....................................................................................................................... 3

PARTS NAME OF REMOTE CONTROLLER...................................................................................... 6

CORRECT USA GE.............................................................................................................................. 8

ADJUSTMENT OF WIND DIRECTION ............................................................................................... 9

TIMER OPERATION .......................................................................................................................... 16

INSTALLATION.................................................................................................................................. 17

MAINTENANCE................................................................................................................................. 18

AIR CONDITIONER OPERATIONS AND PERFORMANCE ............................................................ 22

RE-INSTALLATION ........................................................................................................................... 23

WHEN THE FOLLOWING SYMPTOMS ARE FOUND...................................................................... 24

INSTALLATION MANUAL <OUTDOOR UNIT> (EH99842501-Q)

VOLUME-1

ACCESSORY PARTS ........................................................................................................................ 26

SAFETY CA UTION............................................................................................................................ 26

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER ............................................ 28

SELECTION OF INSTALLATION PLACE................................................................................ 29

OUTDOOR UNIT CARRYING IN ............................................................................................. 30

INSTALLATION OF OUTDOOR UNIT ..................................................................................... 31

REFRIGERANT PIPING........................................................................................................... 33

OWNER’SINSTALLATION

OUTDOOR (VOLUME-1)

INSTALLATION MANUAL <OUTDOOR UNIT> (EH99842601-Q)

VOLUME-2

SAFETY CA UTION............................................................................................................................ 43

ELECTRIC WIRING.................................................................................................................. 44

ADDRESS SETUP ...................................................................................................................50

SETTING WHEN CONNECTING MULTIPLE INDOOR UNITS TO A FS UNIT ....................... 59

HOW TO SET UP THE COOLING ONLY INDOOR UNIT......................................................... 60

TEST OPERATION................................................................................................................... 61

TROUBLESHOOTING ............................................................................................................. 63

INSTALLATION MANUAL <FLOE SELECTOR UNIT> (EH99842401-Q)

Accessory parts and Parts to be procured locally ....................................................................... 65

PRECAUTIONS FOR SAFETY................................................................................................ 65

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER ............................................ 67

SELECTION OF INSTALLATION PLACE................................................................................ 68

INATALLATION OF FLOW SELECTOR UNIT ......................................................................... 70

REFRIGERANT PIPING........................................................................................................... 72

ELECTRIC WORK.................................................................................................................... 76

INSTALLATION

OUTDOOR (VOLUME-2)

INSTALLATION

FLOW SELECTOR UNIT

PRECAUTIONS FOR SAFETY

WARNING

Warning on installation

Be sure to leave the installation work to the dealer or a store specializing.

The exclusive kno wledge and technology are required for installation work. Do not perform installation by yourself. If an incomplete installation is perf ormed,

a fire, electric shock, injury, or water leakage may be caused.

Be sure to use the products sold separately which are specified b y us.

For the products sold separately, be sure to use those specified by us. Otherwise , a fire, electric shock, or water leakage ma y 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 consultation 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, conf orm 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 def ective, 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 e xample , 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 engineer.

If an incomplete installation is performed, a fire, electric shock, injury, or water leakage may be caused.

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 flammable 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.

OWNER’S

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 gener ate.

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.

NAME OF EACH PART

Indoor unit

[4-way Air Discharge Cassette Type]

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.

Clip

The clip is to open/close the air inlet grille.

[2-way Air Discharge Cassette Type]

Earth screw

It is included in the electric parts box.

Center panel

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 filter

Removes dust and trash. (Air filter is provided in the air grille.)

Air inlet grille

Air in the room is sucked from here.

Air outlet/Air outlet flap

Select air blow direction in cooling or heating operation each.

Sold Separately P arts

UNIT No.

R.C. No.

CODE No.

ON / OFF

FAN

MODE

SWING/FIXTIME

VENT

UNITSET CL

FILTER RESET

RBC-AMT31E

Main remote controller

DATA

SET

TEST

SETTING

TEMP .

TIMER SET

TEST

Air inlet

Air in the room is sucked from here.

Air filter

Removes dust and trash. (Air filter is provided in the center panel.)

[1-way Air Discharge Cassette Type] MMU-AP0071YH to AP0121YH MMU-AP0151SH to AP0241SH

Air outlet/

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.)

Air outlet flap

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.)

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.

RBC-AS21E2

Sub-remote controller

TEST

SETTING

˚C

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.)

Wireless remote controller kit

TCB-AX21E2 RBC-AX22CE2 RBC-AX21U(W)-E2

[Concealed Duct Type]

Air outlet flange

Discharge duct is connected.

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.

[Concealed Duct, High Static Pressure Type]

Air outlet

Discharge duct is connected.

Earth screw

Earth screws are provided in the electric parts box.

[Slim Duct Type]

Air inlet

Suction duct is connected.

Air filter

(Air filter is not provided to some models in the series.)

[Under Ceiling Type]

Button

Button to open/close the suction port

Earth screw

Earth screws are provided in the electric parts box.

Air inlet

Suction duct is connected.

Drain pan

Earth screw

It is included in the electric parts box.

Air outlet

Discharge duct is connected.

Air inlet port

The air in the room is sucked in from this port.

PROGRAM1 PROGRAM2 PROGRAM3

WEEKLY TIMER

Weekly timer

RBC-EXW21E2

ZONE

ALL ZONE GROUP

1234

SET DATA

SETTING

R.C.

SELECT ZONE

TCB-SC642TLE2

Central remote controller

UNIT No.

SuMoTuWeTh Fr Sa

ERROR

CODE

TEST

No.

SET

No.

GROUP

Air filter

Removes dust or trash. (Provided on the suction port.)

[High Wall T ype]

MMK-AP0071H to AP0241H

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.)

MMK-AP0072H to AP0122H

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

Earth screws are provided in the electric parts box.

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

Earth screw

Earth screws are provided in the electric parts box.

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

Earth screw

Earth screws are provided in the electric parts box.

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

[Floor Standing Cabinet Type]

Air filter

Removes dirt or dust. (It is included in the suction port.)

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.

[Floor Standing Concealed Type]

Earth screw

It is prepared in the electric parts box.

Air inlet port

Sucks air inside of the room from here.

Front panel (Lower side)

[Floor Standing Type]

Horizontal flap/Air outlet port

Exchanges the air direction according to cooling or heating time.

Air inlet port

Sucks air inside of the room from here.

Air filter

Removes dirt or dust.

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.)

Fixing metal holder

Vertical flap

The air can be automatically discharged rightward/leftward at stated periods.

Drain pan

Water accumulated in the drain pan is drained from here through the drain pipe.

Earth screw

It is prepared in the electric parts box.

Outdoor unit

Air inlet

They are provided at front, rear, left, and right sides.

Fixing leg

Fixing metal holder (Right and left)

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.

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.

78 9

1 4

3 5

SET

DATA

SETTING

TEST

UNIT No.

R.C. No.

CODE No.

SET DATA display

Displayed during setup of the timer.

Operation mode select display

The selected operation mode is displayed.

CHECK display

Displayed while the protective device works or a trouble occurs.

Timer time display

Time of the timer is displayed. (When a trouble occurs, the check code is displayed.)

Timer SETIN setup display

When pushing the Timer SETIN button, the display of the timer is selected in order of [OFF] [ON]

Filter display

If “FILTER ” is displayed, clean the air filter.

TEST run display

Displayed during a test run.

Flap position display (for 4-W ay Air Discharge Cassette Type and Under Ceiling Type model only)

Displays flap position.

SWING display

Displayed during up/down movement of the flap.

Set up temperature display

The selected set up temp. is displayed.

Remote controller sensor display

Displayed while the sensor of the remote controller is used.

→ [OFF] repeat OFF timer →

→ No display.

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.

Operation ready display

Displayed when cooling or heating operation is impossible because the outdoor temperature goes out of the operable range.

No function display

Displayed if there is no function even if the button is pushed.

Air volume select display

The selected air volume mode is displayed. (AUTO) (MED.) (LOW)

In the Concealed Duct High Static Pressure type models, [HIGH] only is displayed for the air speed.

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 conditioner.

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,

ON / OFF

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.)

DATA

SET

TEST

SETTING

TEMP .

TIMER SET

FILTER

TEST

RESET

10 11

(HIGH)

MODE

flashes when operating

, / buttons and

UNIT No.

R.C. No.

CODE No.

ON / OFF

FAN

MODE

SWING/FIXTIME

VENT

UNITSET CL

Display section

Operation section

16 13

Operation section

ON / OFF

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.

TEMP.

FIL TER

TEST

RESET

5 3

Air volume select button

Selects the desired air volume mode. The Concealed Duct High Static Pressure type

models cannot be operated.

Timer set button

TIMER SET button is used when the timer is set up.

Check button

The CHECK button is used for the check operation. During normal operation, do not use this button.

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.

Filter reset button

Resets (Erases) “FILTER ” display.

TIMER SET

ON / OFF

FAN

SWING/FIXTIME

MODE

VENT

9 4

UNITSET CL

Operation lamp

Lamp is lit during the operation. Lamp is off when stopped.

Although it flashes when operating the protection device or abnormal time.

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.

Operation select button

Selects desired operation mode.

Set up temperature button

Adjusts the room temperature. Set the desired set temperature by pushing

button

or .

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 Standard Type, High Static Pressure Type, Floor standing Cabinet Type, Floor Standing Concealed Type, or Slim Duct Type.

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.

• In case that one remote controller controls the multiple indoor units, the setup operation is unavailab le in g roup control.

CORRECT USAGE

When you use the air conditioner for the first time or when you change the SET DATA value, f ollow the procedure below. From the next time, the operation displa yed on the remote controller will start by pushing the

ON / OFF

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.

• While using the air conditioner, operate it only with

• 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

button only.

switch and the leak breaker.

for a long time.

REQUIREMENT

ON / OFF

button without turning off the main power

TEMP.

TIMER SET

SWING/FIXTIME

FIL TER

TEST

RESET

Push

The operation lamp goes on, and the operation starts.

Select an operation mode with the

One push of the button, and the display changes in the order shown on the right.

•“DRY mode” function is not pro vided to Concealed Duct High Static Pressure Type.

Select air volume with

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 ” oper ation, 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 Pressure Type” but air speed “HIGH ” only is displayed.

ON / OFF

button.

FAN

button.

MODE

button.

FAN

UNITSET CL

ON / OFF

MODE

VENT

HEAT DRYAUTO COOL FAN

(Dehumidity)

AUTO

LOW MED. HIGH

Determine the set up temperature by pushing the “TEMP. ” or “TEMP. ” button.

Stop

Push

The operation lamp goes off, and the operation stops.

ON / OFF

button.

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 OF WIND 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 accum ulates 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, une venness of temperature may increase in the room.

4-way Air Discharge Cassette Type

• 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 remote controller even if the status is ready to heating.

” is displayed on the

[In Cooling operation]

Use the discharge flap with horizontal set point.

[In Heating operation]

Use the discharge flap with downward set point.

How to set up the air direction

SWING/FIX

Push

Every pushing the button, the air direction c hanges.

In Heating operation

Set the air outlet flap downward. If directing it upward, the hot air may not come to the f oot.

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.

button.

Initial setup

How to start swinging

SWING/FIX

Push

button. Set direction of the air outlet flap to the lowest position and then push

SWING/FIX

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

SWING/FIX

Push

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.

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 exchanges as shown in the figure.

UNIT

button, the display

button

FIL TER RESET

TEMP.

TEST

TIMER SET

SWING/FIXTIME

UNITSET CL

FAN

ON / OFF

MODE

VENT

1, 2, 3 4

In FAN operation

Initial setup

Display when stopping the swing

Fan/Heat operation

Unit No. 1-1No display Unit No. 1-2

Unit No. 1-4 Unit No. 1-3

In all modes

Series of operation

Cool/Dry operation

According to the shape or arrangement of the room, the cold air and hot air can be discharged for two directions 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, une venness 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 ev en if the switch is pushed. Adjusting the stop position, push the switch.

2-way Air Discharge Cassette Type

[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

SWING/FIX

Push

button during operation.

• [SWING ] is displayed and the air direction automatically changes upward/downw ard. 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.

Push

SWING/FIX

button again during s winging of the air

TEMP.

ON / OFF

outlet flapp.

• The air outlet flap can be stopped at the desired position.

UNIT

• To set up the air direction individually, push

UNIT

FILTER RESET

TEST

TIMER SET

FAN

SWING/FIXTIME

UNITSET CL

MODE

VENT

button to display each indoor unit No. in a group control. Then set up the air direction to a displayed indoor unit.

1, 2 3

• If there is no display, all the indoor units can be operated collectively.

• Every pushing

UNIT

button, the display exchanges as

Unit No. 1-1No display Unit No. 1-2

shown in the figure.

Unit No. 1-4 Unit No. 1-3

1-way Air Discharge Cassette Type (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 f oot.

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-w ay Air Discharge Cassette Type”.

Under Ceiling Type, 1-way Air Discharge Cassette Type (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 direction 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

SWING/FIX

Push

button during operation.

Every pushing the button, the air direction changes.

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.

Initial setup

How to start swinging

SWING/FIX

Push

button. Set direction of the horizontal flap (Up/Down air direction adjustment plate) 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

SWING/FIX

Push

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 downw ard 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.

UNIT

• To set up the air direction individually, push

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 ex-

changes as shown in the figure.

UNIT

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.

TEMP.

FAN

SWING/FIXTIME

UNITSET CL

FIL TER RESET

TIMER SET

TEST

1, 2, 3 4

In FAN operation

Initial setup

Display when stopping the swing

Fan/Heat operation

Initial setup

ON / OFF

MODE

VENT

In all modes

Series of operation

Cool/Dry operation

Unit No. 1-1No display Unit No. 1-2

Unit No. 1-4 Unit No. 1-3

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, unev enness of temper ature may increase in the room.

High Wall T ype

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 f oot.

REQUIREMENT

• If cooling operation is performed with downward air outlet, de w may f all on surface of the cabinet or the horizontal flap resulted in dripping.

• If heating operation is performed with horizontal air outlet, unev enness of temper ature 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 ev en 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 Cassette Type (2SH Series)”.

Floor Standing Cabinet Type

[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 f oot.

How to change the air outlet port

Change the air outlet port in the following procedure.

Take off two fixing screws of the air outlet port. (The fixing screws are reused.)

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.

Lift up the air outlet port upward and remove it.

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.

Be sure to tighten the air outlet port with the removed fixing screws so that the air outlet port does not come off.

Floor Standing Type

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.

[In case of automatic swing]

SWING/FIX

Push

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.

SWING/FIX

Push

button again during swinging

of the horizontal flap.

• The horizontal flap can be stopped at the desired position.

Swing button

• To set up the air direction individually, push

UNIT

button to display each indoor unit No.

UNIT

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.

In this case, do not use the swing function.

TEMP.

FAN

SWING/FIXTIME

UNITSET CL

FIL TER RESET

TIMER SET

TEST

1, 2 3

Unit No. 1-1No display Unit No. 1-2

Unit No. 1-4 Unit No. 1-3

ON / OFF

MODE

VENT

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, une venness 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 position, push the

SWING/FIX

button.

SWING/FIX

button is pushed. Adjusting the stop

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

FILTER RESET

Push TIMER SET button.

• The timer display (type) changes for every push of the button.

• SET DATA and timer time displays flash.

Push

TIME

to select “SET TIME”.

TEMP.

TEST

TIMER SET

ON / OFF

FAN

SWING/FIXTIME

UNITSET CL

MODE

VENT

OFF

(OFF timer) (Repeat OFF timer)

OFF ON

No display

(ON timer)

For e very 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 e very push of button, the set time decreases in the unit of 0.5 hr (30 minutes). The minimum set time is 0.5 hr.

Push SET button.

SETTING

•

display disappears and timer time displa y goes on.

(When ON timer is activated, timer time, ON timer are displayed and other displays disappear.)

Cancel of timer operation

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 the set time.

ON / OFF

button and stops the operation after the time of the timer has reached

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 b y means of circuit breaker or a switch with a contact separation of at least 3mm.

MAINTENANCE

Cleaning of air filter

• When [FILTER] is displayed on the remote controller, maintain the air filter.

• Clogging of air filter decreases cooling/heating effect.

CODE No.

ON / OFF

MODE

VENT

FILTER display

Notifies the time to clean the air filter.

FILTER reset

Push the FILTER switch after cleaning. “FILTER” display disappears.

SET

FILTER RESET

DATA

TEMP.

TEST

SETTING

TEST

TIMER SET

UNIT No.

R.C. No.

FAN

SWING/FIXTIME

UNITSET CL

WARNING

Be sure to turn off the main power switch prior to the maintenance.

• Please do not intend to do the daily maintenance and/or Air Filter cleaning by yourself.

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.

• For daily maintenance including Air Filter cleaning, make sure to ask the qualified service person particularly following models;

4-way Air Discharge Cassette Type Concealed Duct Type Under Ceiling Type 2-way Air Discharge Cassette Type Slim Duct Type 1-way Air Discharge Cassette Type Concealed Duct, High Static Pressure Type

NO GOOD

2-way Air Discharge

Cassette Type

4-way Air Discharge

Cassette Type

NO GOOD

NO GOOD NO GOOD

Concealed Duct Type

Under Ceiling Type Slim Duct Type

NO GOOD

1-way Air Discharge

Cassette Type

NO GOOD

Concealed Duct,

High Static Pressure Type

High Wall T ype

(Model : 1H series)

• Push the projection at the center of air filter. Clip is out.

• Undo the clip of air filter, pull the air filter downward while pushing it

toward the main unit side.

(Model : 2H series)

• Open the air inlet grille. Lift the air inlet grille up to the horizontal position.

• Take hold of the left and right handles of the air filter and lift it up slightly, then pull downward to take it out from the filter holder.

Filter holder

Push the air filter, and pull it downward.

Floor Standing Cabinet Type

• Push down the upper part of the suction port a little, and then pull toward you to remo ve it.

• Take out the air filter inside of the suction port.

Floor Standing Concealed Type

• Push down hook of the air filter on the front panel (Lower side).

• Pull the air filter toward you to remove it.

Floor Standing Type

Removal / Attachment of air filter

• Pull the air filter toward you.

• To attach the air filter, insert it into the main body

and push in it.

Front panel (Lower)

Air filter knob

NOTE

• For cleaning of air filter, use a cleaner or brush clean. If stain is heavy,

it is effectiv e to w ash the air filter in tepid w ater mixed with neutral detergent.

• After washing, rinse it well, and dry it in the shade.

• Install again the air filter which has been cleaned.

Return the air filter

• Insert the upper portion of air filter confirming to fit it is right and left edges on the indoor unit until it is firmly set.

• Close the air inlet grille. If the FILTER lamp on the indoor unit is indicated, press the FILTER button on the remote controller or the

TEMPORARY button on the indoor unit to turn off the lamp.

Filter holder

Cleaning the air inlet grille

1. Remove the air inlet grille.

Hold the two sides of the air inlet grille and open upwards. Move the center arm to the left and remove the g rille.

2. Wash it with water using a soft sponge or towel.

(Do not use metallic scrubbing brush or other hard brushes.)

• Use of such hard objects will cause scratches on the surface of the grille, and the metal coating to peel off.

• If very dirty, clean the air inlet g rille with a neutral detergent for kitchen use, and rinse it off with water.

3. Wipe out water from the air inlet grille and dry it.

4. Fit the left and right arms of the air inlet grille to the shafts on the two sides of the air conditioner and push in completely, and then push in the center arm.

5. Chec k that the center arm has been completely inserted and close the air inlet grille.

• Push the arrow locations (Four) at the bottom of the air

inlet grille to check whether the grill is completely closed.

Cleaning of main unit / remote controller

CAUTION

• Wipe them with soft and dry cloth.

• 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 main unit and 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 benzine, thinner , polishing po wder, or similar solvents f or cleaning. These may cause the plastic surface to crack or def orm.

Polishing

powder

Benzene

Thinner

Chemical floor-cloth

Do not use.

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.

I will wipe soft and dry cloth!

Checks before operation

1. Chec k that the air filters are installed.

2. Chec k 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.

Use after drying

when it has not been

used for a long time!

NOTE

For Air conditioning system which 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. This cleaning and maintenance shall be carried out by a qualified person. Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and ev en compressor failure.

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.

Please close

Clean, please.

Blows upward

Cool and dry air

Gee, chilly

Control

Air flow adjustment

Warm air

Blows downward

AIR CONDITIONER OPERATIONS AND PERFORMANCE

Check before operation

• Check whether earth wire is disconnected or out of place.

• Check that air filter is installed to the indoor unit.

Heating capacity

• For heating, a heat pump system which sucks in outside heat air

and discharges it into the room is adopted. If temperature of the outside air lowers, the heating capacity decreases.

• When temperature of the outside air is low, it is recommended to use other heating equipment together.

Turn on the power switch 12 hours or more before starting before operation.

WARNING

Defrost operation during heating operation

• If the outdoor unit has some frost during heating operation, the operation mode changes automatically to

defrost mode to increase the heating effect (f or approx. 2 to 10 minutes).

• During defrost operation, fans of the indoor and the outdoor units stop.

Protection for 3 minutes

• The outdoor unit does not operate for approx. 3 minutes after air conditioner has been immediately restarted

after stop, or power switch has been turned on. This is to protect the system.

Main power failure

• If a power failure occurred during the operation, all operations stop.

• When restarting the operation, push ON/OFF button again.

Fan rotation of stopped unit

• While other indoor units operate, the fan on indoor units on “stand-by” rotates to protect the machine once

per approx. 1 hour for several minutes.

Protective device (High pressure switch)

The high pressure switch stops the air conditioner automatically when excessive load is applied to the air conditioner.

If the protective de vice w orks, the operation lamp keeps lit but the operation stops. When the protective device w orks, check characters “ ” in the remote controller display part flash.

The protective device may work in the following cases.

• When suction or discharge port of the outdoor unit closed.

• When strong wind blows continuously against discharge port of the outdoor unit.

• When dust or dirt is excessively adhered to air filter of the indoor unit.

• When discharge port of the indoor unit is blocked.

Cooling/heating operation of Heat Recovery Multi air conditioner

• When the outdoor temperature goes out of the operable range, cooling or heating operation may not be

performed in order to protect the equipment. In this case, “ ” goes on.

Characteristics of heating operation

• Hot air is not out immediately after the operation has started. After 3 to 5 minutes (differs according to room

or outside temperature) has passed and the indoor heat exchanger has been warmed up, hot air blows out.

• During operation, the outdoor unit may stop if outside temperature becomes high.

• When other outdoor unit performs heating operation while the fan is operating, the f an oper ation may be

stopped temporarily to prevent b l owing of hot air.

Characteristics of cooling/heating simultaneous operation

• If the outdoor temperature drops during operation, the fan of the outdoor unit may stop.

Air conditioner operating conditions

For proper perf ormance, operate the air conditioner under the f ollo wing temperature conditions:

Cooling Outdoor temperature : –10°C to 43°C (Dry-bulb temp.) operation

Heating Outdoor temperature : –15°C to 21°C (Dry-bulb temp.), –15°C to 15.5°C (Wet-bulb temp.) operation

• If air conditioner is used outside of the above conditions, safety protection may work.

* 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)

Room temperature : 21°C to 32°C (Dr y-bulb temp.), 15°C to 24°C (Wet-bulb temp.)

CAUTION

Room temperature : 15°C to 28°C (Dry-bulb temp.)

Room relative humidity – less than 80 %. If the air conditioner operates in excess of this figure, the surface o f the air conditioner may cause dewing.

CAUTION

When outdoor temperature goes out of specified range, “ or ” mark is indicated on the Wired remote controller display and required operation will stop .

“ & ” : When heating operation. “ ” : When cooling operation.

Notice :

• This indication is not failure.

• When outdoor temperature goes back to specified range , “ or ” disappear and start normal operation.

• Operation stops because concurrent operation can not be kept in the condition of out of specification for

Super HRM. (Outdoor temp. (DB) < –10°C : Cooling, > 21°C : Heating)

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 yourself, it ma y 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 a TV, 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 sulfureous 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.

WHEN THE FOLLOWING SYMPTOMS ARE FOUND

Check the points described below before asking repair servicing.

Symptom

Outdoor unit • White misty cold air or

water is out.

• Sometimes, noise “Pushu !” is heard.

Indoor unit •“Swish” sound is

heard sometimes.

• Slight “Pishi!” sound is heard.

• Discharge air smells.

•“

” indication is lit.

It is not a failure.

• Sound or cool air is output from the stand by indoor unit.

• When power of the air conditioner is turned on, “Ticktock” sound is heard.

Cause

• Fan of the outdoor unit stops automatically and performs defrost operation.

• Solenoid valve works when defrost operation starts or finishes.

• When the operation has started, during the operation, or immedi-

ately after the operation has stopped, a sound such as water flows may be heard, and the operation sound may become larger for 2 or 3 minutes immediately after the operation has started. They are flowing sound of refrigerant or draining sound of dehumidifier.

• This is sound generated when heat exchanger, etc. expand and contract slightly due to change of temperature.

• Various smell such as one of wall, carpet, clothes, cigarette, or cosmetics adhere to the air conditioner.

• Do not the outdoor temperature go out of the specified range?

• When the manager of the air conditioner has fixed the operation to

COOL or HEAT, and an operation contrary to the setup operation is performed.

• When fan operation stopped to prevent discharge of hot air.

• Since refrigerant is flowed temporarily to prevent stay of oil or

refrigerant in the stand by indoor unit, sound of flowing refrigerant, “Kyururu” or “Shaa” may be heard or white steam when other indoor unit operates in HEAT mode, and cold air in COOL mode may be blow-out.

• Sound is generated when the expansion valve operates when power has been turned on.

Operates or stops automatically. Does not operate.

Silent

Air is not cooled or warmed sufficiently.

Check again.

It’s strange.

• Is the timer “ON” or “OFF”?

• Is it a power failure?

• Is the power switch turned off?

• Is the power fuse or breaker blown?

• Has the protective device operated? (The operation lamp goes on.)

• Is the timer “ON”? (The operation lamp goes on.)

• Do not the outdoor temperature go out of the specified range?

• Is the suction port or discharge port of the outdoor unit obstructed?

• Are any door or window open?

• Is the air filter clogged with dust?

• Is discharge louver of the indoor unit set at appropriate position?

• Is air selection set to “LOW” “MED”, and is the operation mode set to “FAN”?

• Is the setup temp. the appropriate temperature?

• Do not the outdoor temperature go out of the specified range?

When the following symptoms are found, stop the operation immediately, turn off the power switch, and contact the dealer which you hav e purchased the air conditioner.

• Activation of switch is unstable.

• The main power fuse often blo ws out, or circuit breaker is often activated.

• Foreign matters or water entered b y mistake.

• When if activation cause of the protective device has been removed, the operation is not performed.

• Other unusual status occurred.

Confirmation and check

When a trouble occurred in the air conditioner, the check code and the indoor unit No . appear on the display part of the remote controller.

The check code is only displayed during the operation.

If the display disappears, operate the air conditioner according to the following “Confirmation of error history” for confirmation.

Confirmation of error history

When a trouble occurred on the air conditioner, the trouble history can be confirmed with the following procedure. (The trouble history is stored in memory up to 4 troubles.)

The history can be confirmed from both operating status and stop status.

Check code

TEMP.

FILTER

TEST

RESET

UNIT No.

R.C. No.

Indoor unit No. in which an error occurred

TIMER SET

FAN

SWING/FIXTIME

UNITSET CL

CODE No.

ON / OFF

MODE

VENT

Procedure

Description

When pushing seconds or more, the following display appears.

If [Service check] is displayed, the mode enters in the trouble history mode.

• [01 : Order of trouble history] is displayed in CODE No. window.

• [Check code] is displayed in CHECK window.

• [Indoor unit address in which an error occurred] is

displayed in UNIT No.

Every pushing of [ , ] button used to set temperature, the trouble history stored in memory is displayed in order.

The numbers in CODE No. indicate CODE No. [01] (latest) → [04] (oldest).

CAUTION

Do not push

SET

TEST

and

button because all the trouble history of the indoor unit will be deleted.

buttons at the same time for 4

UNIT No.

R.C. No.

CODE No.

After confirmation, push

TEST

button to return to the usual display.

1. Chec k the troubles according to the above procedure.

2. Ask an authorized dealer or qualified service (maintenance) professional to repair or maintain the air conditioner.

3. More details of the service code are explained in Service Manual.

ACCESSORY PARTS

r Accessory parts

MMY-

Part name

Installation Manual 2 2 2 Owner’s Manual 1 1 1 — (Be sure to handover to customers.)

Attached pipe 1 1 —

Attached pipe ——1

Attached pipe 1 1 1

MAP0802FT8 MAP1002FT8 MAP1202FT8

Q’ty

Shape Use

Volume-1 Volume-2

(Be sure to handover to customers.)

Suction gas pipe Ø25 to Ø22 special-form connecting pipe (For drawing out forward, downward)

Suction gas pipe Ø25 to Ø28.6 special-form connecting pipe (For drawing out forward)

Suction gas pipe Ø25 to Ø28.6 special-form connecting pipe (For drawing out downward)

Discharge gas pipe Ø15.9 to Ø19.1 special-form connecting pipe (For drawing out downward)

Discharge gas pipe Ø15.9 to Ø19.1 special-form connecting pipe (For drawing out forward)

Liquid pipe Ø12.7 connecting pipe (For drawing out forward)

n This air conditioner requires the indoor unit, remote controller, Flow selector unit, and

Y-shape branching joint or branching header. Select one according to the capacity.

INSTALLATION

OUTDOOR (VOLUME-1)

SAFETY CAUTION

• Please read this “Safety Cautions” thoroughly before installation to install the air conditioner and flow selector correctly.

• The important contents concerned to the safety are described in the “Safety Cautions”. Be sure to keep them. For Indications and their meanings, see the following description.

n Explanation of indications

WARNING

Indicates possibilities that a death or serious injury of personnel is caused by an incorrect handling.

CAUTION

Indicates contents that an injury (∗1) or property damage (∗2) only may be caused when an incorrect work has been executed.

*1 : “Injury” means a hurt, a burn, or an electric shock which does not require hospitalization or a long-term going to

the hospital.

*2 : “Property damage means an enlarged damage concerned to property, or breakage of materials.

• After installation work has finished, check there is no trouble by a test operation, and explain using method and maintenance method to the customers based on the Owner’s Manual.

Please ask the customers to keep this Installation Manual together with the Owner’s Manual.

SAFETY CAUTION

WARNING

Ask a shop or a professional dealer to install the air conditioner.

If you will install by yourself, a fire, an electric shock, or water leak is caused.

Using the tool or piping materials exclusive to R410A, install the air conditioner surely according to this Installation Manual.

The pressure of the used HFC system R410A refrigerant is higher approx. 1.6 times of that of the former refrigerant. If the exclusive piping materials are not used, or there is imperfection in installation, a crack or an injury is caused and also a water leak, an electric shock, or a fire may be caused.

Take measures so that the refrigerant does not exceed the limit concentration even if it leaks when installing the air conditioner in a small room.

For the measures not to exceed the limit of concentration, contact the dealer. If the refrigerant leaks and it exceeds the limit of concentration, an accident of oxygen shortage is caused.

Install the air conditioner at a place which is satisfactorily bearable to weight.

If strength is insufficient, the unit may fall down resulting in human injury.

Perform a specified installation work against a strong wind such as typhoon or earthquake.

If the air conditioner is imperfectly installed, an accident by falling or dropping may be caused.

If refrigerant gas leaks during installation work, ventilate the room.

If the leaked refrigerant gas approaches to fire, noxious gas may generate.

After installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks in the room, and approaches to fire such as fan heater, stove or kitchen range, generation of noxious gas may be caused.

Never recover refrigerant in the outdoor unit.

Be sure to use a refrigerant recovery device to recover refrigerant in reinstallation or repair work. Recovery of refrigerant in the outdoor unit is unavailable; otherwise a serious accident such as crack or human injury is caused.

A person qualified for the electric work should deal with the electric construction conforming to the regulations of the local electric company and the Installation Manual. Be sure to use the exclusive circuit.

If there is capacity shortage of the power supply circuit or incomplete installation, a fire or an electric shock is caused.

For cabling, use the specified cables and connect them securely so that external force of cable does not transmit to the terminal connecting section.

If connection or fixing is incomplete, a fire, etc may be caused.

Be sure to connect earth wire.

Do not connect earth wire to gas pipe, water pipe, lightning rod, nor earth wire of telephone. If grounding is incomplete, an electric shock is caused.

CAUTION

Do not install the air conditioner at a place where combustible gas may leak.

If gas leaks and is collected at surrounding the unit, the production of fire may be caused.

Be sure to attach an earth leakage breaker; otherwise an electric shock may be caused. Using a torque wrench, tighten the flare nut in the specified method.

If the flare nut is exceedingly tightened, the flare nut is broken and a refrigerant leakage may be caused after a long time has passed.

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER

This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.

• R410A refrigerant is apt to be affected by impurity such as water, oxidizing membrane, or oils because the pressure of R410A refrigerant is higher than that of the former refrigerant by approx. 1.6 times. Accompanied with adoption of the new refrigerant, refrigerating oil has been also changed. Therefore pay attention so that water, dust, former refrigerant, or refrigerating oil does not enter into the refrigerating cycle of the new refrigerant air conditioner during installation work.

• To prevent from mixing of refrigerant or refrigerating oil, the size of charge port of the main unit or connecting section of installation tool differs from that of the air conditioner for the former refrigerant. Accordingly the exclusive tools are required for the new refrigerant (R410A) as shown below.

• For connecting pipes, use the new and clean piping materials so that water or dust does not enter.

Required tools and cautions on handling

It is necessary to prepare the tools and parts as described below for the installation work. The tools and parts which will be newly prepared in the following items should be restricted to the exclusive use.

Explanation of symbols

: Newly prepared (It is necessary to use it properly exclusive to R410A separated from those for R22 or R407C.)

¡ : Former tool is available.

Used tools

Gauge manifold Charging hose Charging cylinder Gas leak detector Vacuum pump Vacuum pump with counter-

flow preventive adapter Flare tool Bender Refrigerant recovery device Torque wrench Pipe cutter

Refrigerant cylinder

Welding machine/ Nitrogen gas cylinder

Usage

Vacuuming or charging of refrigerant and operation check

Charges refrigerant Checks gas leak Vacuum drying

Vacuum drying

Flare processing of pipes Bending processing of pipes Recovers refrigerant Tightens flare nut Cuts pipes

Charges refrigerant

Welding of pipes

Proper use of tools/parts

Newly prepared, Exclusive to R410A

Unusable (Use the Refrigerant charging balance.)

Newly prepared

Usable if a counter-flow preventive adapter is attached

: R22 (Existing article)

: Usable by adjusting size

: R22 (Existing article)

Exclusive to R410A

Newly prepared, exclusive to Ø12.7mm and Ø15.9mm

: R22 (Existing article)

Exclusive to R410A

ID : Refrigerant name entered

: R22 (Existing article)

Refrigerant charging balance

Charges refrigerant

: R22 (Existing article)

SELECTION OF INSTALLATION PLACE

WARNING

Install the air conditioner certainly at a place bearable to weight.

If strength is insufficient, the unit may fall down resulting in human injury.

CAUTION

Do not install the air conditioner at a place where combustible gas may leak.

If gas leaks and is collected at surrounding the unit, the production of fire may be caused.

Upon customer’s approval, install the air conditioner at a place where satisfies the following conditions.

• Place where it can be installed horizontally.

• Place which can reserve a sufficient service space for safe maintenance or check.

• Place where there is no problem even if the drained water flows.

Apply electric insulation between metal section of the building and metal section of the air conditioner in conformance with the Local Regulation.

Avoid the following places.

• Salty place (seaside area) or place with much gas sulfide (hot spring area)

(If selecting such a place, a special maintenance is required.)

• Place where oil (including machine oil), steam, oil smoke or corrosive gas generates.

• Place where a device generating high frequency (inverter, non-utility generator, medical apparatus, or

communication equipment) is set. (A bad influence may generate by malfunction of the air conditioner, control error, or noise for such equipment.)

• Place where discharged air of the outdoor unit blows against windows of neighbor.

• Place where operation sound of the outdoor unit transmits.

(Especially at the boundary line with neighbor, install the air conditioner considering the noise.)

• Place unbearable to weight of the unit.

• Place with ill ventilation.

Installation space

Considering functions, reserve space necessary for installation work and servicing.

Outdoor unit top view

20mm or more

(A case of 3 units are installed.)

Air inlet

Installation work/ servicing surface

Square hole for handling

Air outlet

(Rear side)

500mm or more

Air inlet

10mm or more

Air inlet

500mm or more

(Front side)

NOTES)

*1 : If there is an obstacle at the upper side of the outdoor unit, reserve

a space by 2000mm or more to the top end of the outdoor unit.

*2 : Arrange the height of obstacle around two outdoor units up to

below 800mm from the bottom end of the outdoor unit.

20mm or more

10mm or more

Equipments

Equivalent HP

8 HP MMY-MAP0802FT8 MMY-MAP0802FT8 —— 10 HP MMY-MAP1002FT8 MMY-MAP1002FT8 —— 12 HP MMY-MAP1202FT8 16 HP MMY-AP1602FT8 MMY-MAP0802FT8 MMY-MAP0802FT8 — 18 HP MMY-AP1802FT8 MMY-MAP1002FT8 MMY-MAP0802FT8 — 20 HP MMY-AP2002FT8 MMY-MAP1002FT8 MMY-MAP1002FT8 — 24 HP MMY-AP2402FT8 MMY-MAP0802FT8 MMY-MAP0802FT8 MMY-MAP0802FT8 26 HP MMY-AP2602FT8 MMY-MAP1002FT8 MMY-MAP0802FT8 MMY-MAP0802FT8 28 HP MMY-AP2802FT8 MMY-MAP1002FT8 MMY-MAP1002FT8 MMY-MAP0802FT8 30 HP MMY-AP3002FT8 MMY-MAP1002FT8 MMY-MAP1002FT8 MMY-MAP1002FT8

The unit with ∗ mark cannot be combined with other unit. (Unit unique to 12 HP)

Model name of

outdoor unit

Unit 1 Unit 2 Unit 3

∗

MMY-MAP1202FT8 ——

Combination of outdoor unit

Handle the outdoor unit in care with the following items.

1. When using a forklift, etc for loading/unloading in transportation, insert pawl of the forklift into the

2. When lifting up the unit, insert a rope sufficiently bearable to unit mass into the square hole for handling,

OUTDOOR UNIT CARRYING IN

square hole for handling as shown below.

and cord the unit from four sides. (Apply a plaster to position where rope fits outdoor unit itself so that flaw or deformation does not generate on the outer surface of the outdoor unit.) (There provided the reinforcing plates on the side surfaces, so the rope cannot be passed.)

OK NO GOOD OK NO GOOD NO GOOD

Plaster

Forklift

Rope

Plaster

Square hole for handling

Reinforcing plate

INSTALLATION OF OUTDOOR UNIT

WARNING

Perform a specified installation work against a strong wind such as typhoon or earthquake.

If the air conditioner is imperfectly installed, an accident by falling or dropping may be caused.

Install the air conditioner certainly at a place bearable to weight.

If strength is insufficient, the unit may fall down resulting in human injury.

Drain water is discharged from the outdoor unit. (Especially in heating time)

Install the outdoor unit at a place where has good drainage.

For installation, be careful to the strength and the level of the foundation so that an abnormal sound (Vibration, noise) does not generate.

Snowfall-hood

In the snowfall area, apply the following measures against snowfall for the outdoor unit. (See the figure on the right.) (Incomplete snowfall-proof measures causes a trouble.)

Place a higher stool under the unit, and mount the snowfall-hoods to air inlet and air outlet so that snows do not have influence. (For the above works, please arrange at the field.)

for air outlet

Snowfall-hood for air inlet (4 faces)

Stool

1. To install the multiple outdoor units, arrange them with 20mm or more intervals.

Fix each outdoor unit with M12 anchor bolts at 4 positions. Length by 20mm is appropriate for an anchor bolt.

• Anchor bolt pitch is as shown below:

310 or more

700 700

Continuous hole (15 x 20 long hole)

700

310 or more

M12 anchor bolt 4 positions/unit

755

Space for draining

20mm or more 20mm or more

2. When drawing out the refrigerant pipe from underside, set height of the stool by 500mm or more.

500mm or more

3. Do not use four stools to set the four corners.

NO GOOD OK

4. Mount the vibration-proof rubber (vibration-proof block etc.) so that it catch whole the clamping leg.

OK OK

Install the vibration-proof rubber so that

Anchor bolt

Vibration-proof rubber

bent part of the fixing leg is grounded.

NO GOODNO GOODNO GOOD

Bent part of the fixing leg is not grounded.

5. Be careful to connecting arrangement of the header unit and the follower units. Set the outdoor units in the order from one with large capacity. (A (Header unit) > B > C > D)

6. Be careful to connecting arrangement of header unit and follower unit.

1) Be sure to use a header unit for the leading outdoor unit to be connected to the main pipe. (Figure 1)

2) However, as shown in the figure below, T-shape branching joint which is sold separately can be connected to connect to the main pie within piping indicated with a bold line in the following figure. (Figure 2)

3) Be careful to direction of T-shape branching joint. (As shown in Figure 3, T-shape branching joint cannot be attached so that refrigerant of the main pipe flows directly to the header unit.)

OK OK NO GOOD

Header

Follower Follower

Header

Follower Follower

Header

Follower Follower

Main pipe To indoor unit

Extension

valve

Main pipe Main pipe

To indoor unit To indoor unit

Figure 1 Figure 2

Extension

valve

Figure 3

REFRIGERANT PIPING

WARNING

If the refrigerant gas leaks during installation work, ventilate the room.

If the leaked refrigerant gas comes to contact with a fire, the noxious gas may generate.

After installation work, check that the refrigerant gas does not leak.

If the refrigerant gas leaks in the room and comes to contact with a fire such as fan heater, stove, or kitchen range, the noxious gas may generate.

Connection of refrigerant pipe

1. The refrigerant pipe connecting section is set in the outdoor unit. Remove the front panel and the piping/wiring panel. (M5: 9 pcs.)

• As shown in the right figure, the hooking hooks

are attached at right and left sides each on the front panel.

Lift up and remove the front panel.

2. Pipes can be drawn out forward and downward from the outdoor unit.

3. When drawing out the pipe forward, draw out the pipe to outside via piping/wiring panel, and keep space of 500mm or more from the main pipe connecting the outdoor unit with the indoor unit, considering service work, etc. (For replacing the compressor, 500mm or more space is required.)

4. When drawing out the pipe downward, remove the knockout of the base plate of the outdoor unit, apply the pipe to outside of the outdoor unit, and perform piping at right/left or rear side. Leading pipe of the balancing should be within 4m.

(Left piping)

Packed valve at liquid side

500mm

or more

Drawing out forward

(Left piping)

(Right piping)

Drawing out downward

Hook

Front panel

Piping/wiring panel

(Rear piping)

(Right piping)

Packed valve at suction gas side

Packed valve at balance side

Ball valve at discharge gas side

REQUIREMENT

For brazing, be sure to use nitrogen gas to avoid oxidation of pipe inside.

1. In a welding work for the refrigerant pipes, be sure to use the nitrogen gas in order to prevent oxidation inside of the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale generates.

2. Use clean and new pipes for the refrigerant pipes and perform piping work so that water or dust is not mixed.

3. Be sure to use a double spanner to loosen or tighten the flare nut. If a single spanner is used, a required tightening cannot be obtained. Tighten the flare not with the specified torque.

Outer dia. of copper pipe

6.4 mm

9.5 mm

12.7 mm

15.9 mm

Tightening torque (N•m)

14 to 18 (1.4 to 1.8 kgf-m) 33 to 42 (3.3 to 4.2 kgf-m) 50 to 62 (5.0 to 6.2 kgf-m) 68 to 82 (6.8 to 8.2 kgf-m)

Pipe connecting method of valve (Example)

Using the attached pipes as shown in the following figure, braze elbows, sockets, and pipes which are procured locally.

MMY- Drawing out forward Drawing out downward

Liquid pipe Use the attached pipe for connection.

Discharge gas pipe

Suction gas pipe

Use the attached pipe (L-shape) and connect it with socket.

Cut L-shape pipe and connect it with elbow, attached pipe and socket.

Pipe connection at the local site (Bend rightward slightly.)

Use the attached pipe (Straight pipe) and connect it with socket.

Cut L-shape pipe and connect it with attached pipe and socket.

MAP0802FT8 MAP1002FT8

MAP1202FT8

Suction gas pipe

Discharge gas pipe

Liquid pipe

Attached pipe

Socket

Pipe

Suction gas pipe

L-shape pipe

Attached pipe

Pipe

Attached pipe

Socket

Pipe

Cut

Liquid pipe Use the attached pipe for connection.

Discharge gas pipe Use the attached pipe and connect it with socket.

Suction gas pipe Cut L-shape pipe and connect it with attached pipe.

Suction gas pipe

Discharge gas pipe

Liquid pipe

Attached pipe

Socket

Pipe

Suction gas pipe

Cut

L-shape pipe

Attached pipe

Pipe

Suction gas pipe

Discharge gas pipe

Liquid pipe

Attached pipe

Pipe

Socket

Pipe

Suction gas pipe

Cut

L-shape pipe

Attached pipe Socket

Pipe

Pipe connection at the local site (Bend rightward slightly.)

Use the attached pipe (Straight pipe) and connect it with socket.

Cut L-shape pipe and connect it with attached pipe and socket.

Suction gas pipe

Discharge gas pipe

Liquid pipe

Attached pipe

Pipe

Socket

Pipe

Suction gas pipe

Cut

L-shape pipe

Attached pipe

Socket

Pipe

• Extruding margin of copper pipe with flare machining : B (Unit: mm)

Copper pipe outer dia.

R410A tool used Conventional tool used

Rigid (Clutch type)

9.5

12.7

0 to 0.5 1.0 to 1.5

15.9

∗ When using the conventional flare tool, to

connect R410A pipes with flaring, make a margin approx. 0.5mm longer than that of R22 pipe so that the flare size matches with the specified one. It is convenient to use a copper pipe gauge for size adjustment of the extruding margin.

• Extruding margin of copper pipe with flare tools : A (Unit: mm)

Copper pipe outer dia.

Imperial (Wing nut)

1.5 to 2.0

2.0 to 2.5

9.5

12.7

15.9

13.2

16.6

19.7

+0.0 –0.4

REFRIGERANT PIPING

• Coupling size of brazed pipe

Connected section

External size Internal size

ØC

ØF

(Unit: mm)

Connected section

Standard outer dia. of

connected copper pipe

6.35

9.52

12.70

15.88

19.05

22.22

28.58

34.92

External size Internal size

Standard outer dia. (Allowable difference)

6.35 (±0.03) 6.45 ( )

9.52 (±0.03) 9.62 ( )

12.70 (±0.03) 12.81 ( )

15.88 (±0.03) 16.00 ( )

19.05 (±0.03) 19.19 ( )

22.22 (±0.03) 22.36 ( )

28.58 (±0.04) 28.75 ( )

34.90 (±0.04) 35.11 ( )

+0.04 –0.02

+0.03 –0.03

+0.06 –0.02

+0.04 –0.04

Min. depth

of insertion

76 87 98

98 11 10 11 10 13 12 14 13

Oval value

0.06 or less

0.08 or less

0.10 or less

0.13 or less

0.15 or less

0.16 or less

0.20 or less

0.25 or less

Min. thickness

of coupling

0.50

0.60

0.70

0.80

0.82

1.00

1.20

Selection of pipe materials and size

• Selection of pipe material

Material: Phosphorus deoxidation seam-less pipe

• Capacity code of indoor and outdoor units

• For the indoor unit, the capacity code is decided at each capacity rank. (Table 1)

• The capacity codes of the outdoor units are decided at each capacity rank. The maximum No. of connectable

indoor unit and the total value of capacity codes of the indoor units are also decided. (Table 2)

Compared with the capacity code of the outdoor unit, the total value of capacity codes of the connectable indoor

 

units differs based on the height difference between the indoor units.

 

• When height difference between the indoor units is below 15m: Up to 135% of capacity code (Equivalent to HP)

   

of the outdoor unit. (in case of MMY-MAP1202FT: 120% or less)

 

• When height difference between the indoor units is over 15m: Up to 105% of capacity code (Equivalent to HP) of

 

the outdoor unit.

Table 1

Indoor unit

capacity rank

007 type 009 type 012 type 015 type 018 type 024 type 027 type 030 type 036 type 048 type 056 type 072 type 096 type

Capacity code

Equivalent Equivalent

to HP to capacity

0.8 2.2 1 2.8

1.25 3.6

1.7 4.5 2 5.6

2.5 7.1 38

3.2 9 4 11.2 514 616 8 22.4

10 28

Table 2

Outdoor unit model name

MMY-MAP0802FT8 MMY-MAP1002FT8 MMY-MAP1202FT8 MMY-AP1602FT8 MMY-AP1802FT8 MMY-AP2002FT8 MMY-AP2402FT8 MMY-AP2602FT8 MMY-AP2802FT8 MMY-AP3002FT8

Capacity code

Equivalent Equivalent

to HP to capacity

8 22.4 10 28 12 33.5 16 45 18 50.4 20 56 24 68 26 73 28 78.5 30 84

No. of

indoor units

13 16 16 27 30 33 40 43 47 48

Capacity code

Equivalent to HP

Min. Max.

5.6 10.8

7.0 13.5

8.4 14.4

11.2 21.6

12.6 24.3

14.0 27.0

16.8 32.4

18.2 35.1

19.6 37.8

21.0 40.5

∗∗

∗ Selection of refrigerant piping

∗∗

No.

Pipe size of outdoor unit



No.

Connecting pipe size between



outdoor unit

No.

Size of main pipe



No.

Pipe size between branching



sections *1, *2

Pipe size between the end of



branch and FS unit

Item

Suction Discharge Liquid

gas side gas side side

Ø22.2 Ø19.1 Ø12.7 Ø22.2 Ø19.1 Ø12.7 — Ø28.6 Ø19.1 Ø12.7

Suction Discharge Liquid Balance

gas side gas side side pipe

Ø28.6 Ø22.2 Ø15.9 Ø9.5

Suction Discharge Liquid

gas side gas side side

Ø22.2 Ø19.1 Ø12.7 Ø28.6 Ø19.1 Ø12.7 Ø28.6 Ø22.2 Ø19.1 — Ø34.9 Ø28.6 Ø19.1 Ø34.9 Ø28.6 Ø22.2

Suction Discharge Liquid

gas side gas side side

Ø15.9 Ø12.7 Ø9.5 Ø22.2 Ø19.1 Ø12.7 Ø28.6 Ø22.2 Ø15.9 — Ø34.9 Ø28.6 Ø15.9 Ø34.9 Ø28.6 Ø19.1 Ø15.9 Ø12.7 Ø9.5 Ø22.2 Ø19.1 Ø12.7

—

Outdoor unit model name

MMY-MAP0802FT8 MMY-MAP1002FT8 MMY-MAP1202FT8

Total capacity code of indoor units

at downstream side

Equivalent to capacity Equivalent to HP

Below 61.5 Below 22

Total capacity code of all outdoor units

Equivalent to capacity Equivalent to HP

Below 33.5 Below 12

33.5 12

45.0 to below 61.5 16 to below 22

61.5 to below 73.0 22 to below 26

73.0 or more 26 or more

Total capacity code of all outdoor units

Equivalent to capacity Equivalent to HP

Below 18.0 Below 6.4

18.0 to below 34.0 6.4 to below 12.2

34.0 to below 56.5 12.2 to below 20.2

56.5 to below 70.5 20.2 to below 25.2

70.5 or more 25.2 or more Below 18.0 Below 6.4

18.0 or more 6.4 or more

No.

Piping of indoor unit



Piping of indoor unit



(Between branching and indoor unit) *2

∗∗

∗ Selection for branching section

∗∗

No.

Y-Shape branching joint *3, *4



Branching header *3, *4. *5

T-Shape branching joint



(For connecting outdoor unit)

Item

For 4 Branching

For 8 Branching

Suction Discharge Liquid

gas side gas side side

Ø9.5 — Ø6.4 Ø12.7 — Ø6.4 Ø15.9 — Ø9.5 Ø22.2 —Ø12.7 Ø9.5 — Ø6.4 Ø12.7 — Ø9.5 Ø12.7 — Ø6.4 — Ø15.9 — Ø9.5 Ø15.9 — Ø9.5 Ø22.2 —Ø12.7

Equivalent to capacity Equivalent to HP

18.0 to below 40.0 6.4 to below 14.2

40.0 to below 70.5 14.2 to below 25.2

For RBM-BT13FE model, only one set of four types of T-joints is packaged with a unit each. Therefore, No. of T-joints corresponding to No. of units of the system should be procured when work at local site.

• Balance pipe (Ø9.52) × 1

• Piping at liquid side (Ø12.7 to Ø22.2) × 1

• Piping at discharge gas side (Ø19.1 to Ø28.6) × 1

• Piping at suction gas side (Ø22.2 to Ø38.1) × 1

—

Total capacity code of indoor unit

Below 18.0 Below 6.4

70.5 or more 25.2 or more Below 40.0 Below 14.2

Below 40.0 Below 14.2

Capacity rank of indoor unit

007 to 012 type 015 to 018 type 024 to 056 type

072 to 096 type 15 m or less 15 m above 15 m or less 15 m above

024 to 056 type

072 to 096 type

For 3 piping For 2 piping

RBM-BY53FE RBM-BY53E RBM-BY103FE RBM-BY103E RBM-BY203FE RBM-BY203E RBM-BY303FE RBM-BY303E

RBM-HY1043FE RBM-HY1043E RBM-HY2043FE RBM-HY2043E RBM-HY1083FE RBM-HY1083E RBM-HY2083FE RBM-HY2083E

007 to 012 type

015 to 018 type

Model name

RBM-BT13FE

REFRIGERANT PIPING

∗∗

∗ Selection of FS unit

∗∗

No.

Model name

RBM-Y1122FE RBM-Y1802FE



RBM-Y2802FE

∗∗

∗ Minimum wall thickness for R410A application

∗∗

Soft

OK OK OK OK NG NG NG NG

Half Hard or Hard

OK OK OK OK OK OK OK OK

Equivalent to capacity (kW)

Below 11.2

11.2 to below 18.0

18.0 to 28.0 or less

Outer dia. (Inch)

1/4” 3/8” 1/2” 5/8” 3/4” 7/8”

1.1/8”

1.3/8”

*1 In case the pipe exceeds main pipe size, it should be the same as main pipe size. *2 2 pipes for cooling only indoor unit shall be used with liquid pipe and suction gas pipe. *3 Branching pipe on the 1 st branch should be selected according to the capacity code

for outdoor unit.

*4 In case total capacity code for indoor units shall be exceeded to capacity code for

outdoor unit, the pipe size should be selected with capacity code for outdoor unit.

Total capacity code of indoor unit

Follower

unit

Follower

unit

Header

unit

*5 For 1 line after header branching, indoor units with a maximum of 6.0 capacity code in

total can be connected.

Outer dia. (mm)

6.35

9.52

12.70

15.88

19.05

22.20

28.58

34.92

Max. No. of connected indoor unit

5 8 8

Minimum wall thickness (mm)

0.80

1.00

1.10

1 1 1

Outdoor unit connecting piping

Connecting piping between outdoor units

T-shape branching joint

Outdoor unit

Main piping

Balance pipe

1st branching section

Liquid pipe Discharge gas pipe

Suction gas pipe

Liquid pipe Discharge gas pipe

Suction gas pipe

FS unit

Indoor unit

FS unit

Branching header joint

Y-Shape branching joint

555

6 6 7 7

8 8 8

5 5

6 6 6 7 7 7

Indoor unit

When connecting the plural indoor units to single FS unit.

Allowable length of refrigerant pipe and height difference

• Cautions concerned with installation/construction

1) The leading outdoor unit connected with the indoor inter-unit pipe is made “A (Header unit)”.

2) Set the units in order of the outdoor capacity. (A (Header unit) > B > C > D)

3) For the combination of the outdoor units, refer to “Combination of outdoor unit” list.

Note:

In case of connecting method <Ex.2>, a large amount of refrigerant and refrigerant oil may return to the head unit. Therefore, set the T-shape joint so that oil does not enter directly.

<Ex.1>

Header

unit A

Follower

unit B

<Ex.2>

Header

unit A

Follower

unit B

NO GOOD

Height difference between indoor units H2 £ 35 (Upper outdoor unit)

Height difference between

indoor units in group control by one FS unit H4 £ 0.5 m

Height difference between outdoor units H3 £ 5 m

Height difference between outdoor and indoor units H1 £ 50 m

Follower unit C

Header unit A

Outdoor unit

T-Shape branching main piping

Branching piping L2

1st branching section

Indoor unit which FS unit control wiring is connected.

Connecting piping of indoor unit

Indoor unit

Equivalent length corresponded to farthest piping L £ 150 m

Equivalent length corresponded to farthest piping after 1st branching Li £ 50 m

FS unit

Indoor unit

Follower unit B

Main connecting piping between outdoor units Length corresponded to farthest piping between outdoor units LO £ 25 m

hi j kg

Lb Lc

bca

FS unit

L6 L7

Branching header

FS unit

When connecting the plural indoor units to single FS unit.

• Allowable length/height difference of the refrigerant pipe

Allowable

value

300 m 125 m

150 m

85 m 50 m 30 m 15 m 25 m 10 m 30 m

15 m 50 m

30 m 35 m 15 m

Pipe length

Height difference

Total extension of pipe (Liquid pipe/real length)

Farthest piping length L (*1)

Real length

Equivalent length Max. equivalent length of main piping Equivalent length of farthest piping from 1 st branching Li (*1) Max. real length of indoor unit connecting piping Max. real length between FS unit and indoor unit (*2) Max. equivalent length of outdoor unit connecting pipe LO (*1) Max. real length of outdoor unit connecting pipe Max. equivalent length between FS unit and indoor unit Lj Max. real length between FS unit and indoor unit which FS

unit control wiring is connected Lh (*2) Height between

indoor unit and outdoor unit H1 Height between

indoor unit H2

Upper outdoor unit

Lower outdoor unit

Upper outdoor unit

Lower outdoor unit Height between outdoor units H3 Height difference between indoor units in group control by one

FS unit H4

1 : The farthest indoor unit from 1st branch to be named C, and farthest indoor unit from 1st branch to be named (q).

2 : Attached connection cable can be used up to 5 m in pipe length between indoor unit and FS unit.

When the pipe length between indoor and FS unit exceeds 5 m, be sure to use the connection cable kit (RBC-CBK15FE).

• Restriction to the system

Max. No. of combined outdoor units Max. capacity of combined outdoor units Max. No. of connected indoor units

Max. capacity of connected indoor units Min. capacity of connected indoor units

3 : MMY-MAP1202FT8 up to 120%.

3 units

84.0 kW 48 units

H2 < 15 m 135% (*3) H2 > 15 m 105%

Outdoor capacity : 70%

0.5 m

Note 1) Combination of outdoor unit : Header unit (1 unit) + Follow unit

Note 2) Install the outdoor units in order of capacity. Note 3) Refer to outdoor unit combination table in page 5.

Note 4) Piping to indoor units shall be perpendicular to piping to the

LA + La + Lb + Lc + L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9

+ a + b + c + d + e + f + g + h + i + j + k + l + m + n + o+ p + q

LA + Lc + L1 + L3 + L4 + L5 + L6 + L7 + L8 + q

L3 + L4 + L5 + L6 + L7 + L8 + q

a + g, b + h, c + i, d + l, e + m, f + m, f + n, j, k

5 m

(0 to 2 units). Header unit is outdoor unit nearest to the connected indoor units.

(Header unit

> Follow unit 1 > Follow unit 2)

head outdoor unit as <Ex. 1>. Do not connect piping to indoor units in the same direction of head outdoor unit as <Ex. 2>.

Pipe section

g, h, i, l, m, n, L7 + o

LA + Lc (LA + Lb)

La, Lb, Lc

L7 + L8 + p, L7 + L8 + q

L7 + o

—— —— —— —— ——

——

Follower

unit C

Follower

unit C

REFRIGERANT PIPING

Airtight test

After the refrigerant piping has finished, execute an airtight test. For an airtight test, connect a nitrogen gas bomb as shown in the figure below, and apply pressure.

• Be sure to apply pressure from the service ports of the packed valves (or ball valves) at liquid side, discharge gas side, balance pipe and suction gas side.

• An air tight test can be only performed to the service ports at liquid side, discharge gas side, and suction gas side of the outdoor unit.

• Close fully valves at liquid side, discharge gas side, balance pipe and suction gas side. As there is possibility that nitrogen gas enters in the refrigerant cycle, re-tighten the valve rods before applying pressure. (Re-tightening of the valve rods are unnecessary for valves at discharge gas side because they are ball valves.)

• For each refrigerant line, apply pressure gradually with steps at liquid side, discharge gas side, balance pipe and suction gas side.

Be sure to apply pressure to suction gas side, discharge gas side, liquid side and balance pipe.

REQUIREMENT

Never use “Oxygen”, “Flammable gas” and “Noxious gas” in an airtight test.

Detailed drawing of packed valve

To gauge manifold

Discharge gas side service port

Discharge gas side ball valve

Liquid side service port

Liquid side packed valve

Piping at site

To outdoor unit

Piping at site

Connected to indoor unit

Main pipe

Suction gas side service port

Suction gas side packed valve

To outdoor unit

Piping at site

Balance pipe service port

To outdoor unit

Balance pipe packed valve

Connected to follower outdoor units

Packed valve fully closed (Suction gas side)

Brazed

Fully closed

Outdoor unit

Service port

Ball valve fully closed (Discharge gas side)

Packed valve fully closed (Liquid side)

Packed valve fully closed (Balance pipe)

Ø6.4

Copper pipe

Lowpressure gauge

VL VH

Ø6.4 Copper pipe

Highpressure gauge

Gauge manifold

Reducing valve

Nitrogen

gas

STEP 1 : Apply pressure 0.3MPa (3.0kg/cm2G) for 3 minutes or more. STEP 2 : Apply pressure 1.5MPa (15kg/cm2G) for 3 minutes or more.



Available to detect a gross leakage



STEP 3 : Apply pressure 3.73MPa (38kg/cm2G) for approx. 24 hours. Available to detect slow leakage

• Check pressure down. No pressure down: Accepted Pressure down: Check the leaked position.

However, if there is difference of ambient temp. between when pressure has been applied and when

   

24 hours passed, pressure changes by approx. 0.01MPa (0.1kg/cm²G) per 1°C. Correct the pressure.

Leaked position check

When a pressure-down is detected in STEP 1, STEP 2, or STEP 3, check the leakage at the connecting points. Check leakage with hearing sense, feeler, foaming agent, etc, and perform re-brazing or re-tightening of flare if leakage is detected.

Air purge

For the air purge at installation time (Discharge of air in connecting pipes), use “Vacuum pump method” from viewpoint of protection of earth environment.

• For protection of earth environment, do not discharge the flon gas in the air.

• Using a vacuum pump, eliminate the remained air (nitrogen gas, etc.) in the unit. If gas remains, an absence

of faculties may be caused.

After the airtight test, discharge nitrogen gas. Then connect the gauge manifold to the service ports at suction gas side, discharge gas side and liquid side, and connect the vacuum pump as shown in the following figure. Be sure to perform vacuuming for suction gas side, discharge gas side, liquid side and balance pipe.

• Be sure to perform vacuuming from both suction gas side, discharge gas side, liquid side and balance pipe.

• Be sure to use a vacuum pump with counter-flow preventive function so that oil in the pump does not back up in

the pipe of the air conditioner while the pump stops. (If oil in the vacuum pump enters in the air conditioner with R410A refrigerant, a trouble is caused in the refrigerating cycle.)

Detailed drawing of packed valve

To gauge manifold

Discharge gas side service port

Discharge gas side ball valve

Liquid side service port

Liquid side packed valve

Piping at site

To outdoor unit

Piping at site

Connected to indoor unit

Main pipe

Suction gas side service port

Suction gas side packed valve

To outdoor unit

Piping at site

Balance pipe service port

To outdoor unit

Balance pipe packed valve

Connected to follower outdoor units

Packed valve fully closed (Suction gas side)

Brazed

Fully closed

Outdoor unit

Service port

Ball valve fully closed (Discharge gas side)

Packed valve fully closed (Liquid side)

Packed valve fully closed (Balance pipe)

Ø6.4

Copper pipe

Lowpressure gauge

VLV

Highpressure gauge

Gauge

manifold

Vacuum pump

• Use a vacuum pump having a high vacuuming degree (below –755mmHg) and a large exhaust gas amount (over

40L/minute).

• Perform vacuuming for 2 or 3 hours though time differs due to pipe length. In this time, check all packed valves at suction gas, discharge gas, liquid side and balance pipe are fully closed.

• If vacuuming valve amount is not decreased to below –755mmHg even after vacuuming for 2 hours or more, continue vacuuming for 1 hour or more. If –755mmHg or less cannot be obtained by 3 hours or more vacuuming, check the leaked position.

• When vacuuming valve reached to –755mmHg or less after vacuuming for 2 hours or more, close valves VL and VH of the gauge manifold fully, stop the vacuum pump, leave it as it is for 1 hour, and then check the vacuuming degree does not change. If it changed, there may be a leaked position. Check the leaked position.

• After the above procedure of vacuuming has finished, exchange the vacuum pump with a refrigerant cylinder and advance to the additional charging of refrigerant.

REFRIGERANT PIPING

Addition of refrigerant

After vacuuming work, exchange the vacuum pump with the refrigerant bomb and then start the additional charging work of refrigerant.

Calculation of additional refrigerant charge amount

Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipe at the local site. For refrigerant to be charged in pipe at the local site, calculate the amount and charge it additionally. NOTE) If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner

without addition of refrigerant.

Outdoor unit Model Charging amount (kg)

Additional refrigerant Real length Additional refrigerant charge charge amount at local site

Example : Additional charge amount R (kg) = {(L1 × 0.025kg/m) + (L2 × 0.055kg/m) + (L3 × 0.105kg/m)} × 1.3



of liquid pipe×amount per 1m liquid pipe (Table 1)



MMY-MAP0802FT8 MMY-MAP1002FT8 MMY-MAP1202FT8

11.5

× 1.3

L1 : Real total length of liquid pipe Ø6.4 (m) L2 : Real total length of liquid pipe Ø9.5 (m) L3 : Real total length of liquid pipe Ø12.7 (m) System : 10HP

Table-1 Table-2

Liquid

pipe dia.

(mm)

6.4

9.5

12.7

15.9

19.1

22.2

Additional refrigerant

amount/1m liquid pipe

(kg/m)

0.025

0.055

0.105

0.160

0.250

0.350

Combined

(HP)

8 10 12 16 18 20 24 26 28 30

Combined outdoor unit

(HP)

8 10 12 8 8 10 8 10 10 8 8 8 10 8 8 10 10 8 10 10 10

C (Corrected refrigerant amount)

(kg)

2.0

2.5

3.0

–1.5

0.0

2.0

–4.5 –3.0 –1.5

0.0

Charging of refrigerant

• Keeping valve of the outdoor unit closed, be sure to charge the liquid refrigerant into service port at liquid side.

• If the specified amount of refrigerant cannot be charged, open fully valves of outdoor unit at liquid and discharge/

suction gas sides, balance side operate the air conditioner in COOL mode under condition that valve at suction gas side is a little returned to close side, and then charge refrigerant into service port at suction gas side. In this time, choke the refrigerant slightly by operating valve of the bomb to charge liquid refrigerant. The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

• When refrigerant leaks and refrigerant shortage occurs in the system, recover the refrigerant in the system and recharge refrigerant newly up to the correct level.

REQUIREMENT

• Fill the additional refrigerant record column of the wiring diagram indication plate with the additional refrigerant

amount at installation work, total refrigerant amount and the name of the service man who charged refrigerant at installation time.

• The total refrigerant amount means the total value of the refrigerant amount at shipment and the additional

refrigerant amount at installation time. The refrigerant amount at the shipment is one described on the “Unit nameplate”.

Full opening of valve

• Open valve of the outdoor unit fully.

• Using 4mm-hexagonal wrench, open fully the valve rods at liquid sides.

• Using a spanner, etc, open fully the valve rod of packed valve at suction gas side.

• Using the pinchers, open fully the handle of the ball valve at gas side.

Be careful that handling of ball valve differs from that of packed valve.

How to open the ball valve at gas side

Charge port

Valve unit

Handle Pull out the handle and using cutting pliers, etc. turn it counterclockwise by 90˚. (Open fully)

Flare nut

Charge port

Valve unit

Push in handle.

Flare nut

Handle position

Closed completely

Handle

Opened fully

Heat insulation for pipe

• Apply heat insulation of pipe separately at liquid, suction gas, discharge gas sides.

• Be sure to use thermal insulator with heat-resisting temp. 120°C or more.

CAUTION

• After piping connection work has finished, cover the opening of the piping/wiring panel with the piping cover, or

fill silicon or putty in space of the pipes.

• In case of drawing-out the pipes downward or sideward direction, also close the openings of the base plate

and the side plate.

• Under the opened condition, a trouble may be caused due to entering of water or dust.

Drawing-out frontward

In case of using pipe cover In case of using no pipe cover

Piping/wiring panel

Drawing-out downward

Drawing-out sideward

Close the opening with pipe cover.

Drawing-out frontward

Piping/wiring panel

Drawing-out sideward

Fill silicon or putty in periphery of the pipes.

Drawing-out downward

SAFETY CAUTION

• Please read this “Safety Cautions” thoroughly before installation to install the air conditioner correctly.

• The important contents concerned to the safety are described in the “Safety Cautions”. Be sure to keep them. For Indications and their meanings, see the following description.

n Explanation of indications

WARNING

Indicates possibilities that a death or serious injury of personnel is caused by an incorrect handling.

CAUTION

Indicates contents that an injury (*1) or property damage (*2) only may be caused when an incorrect work has been executed.

*1 : “Injury” means a hurt, a burn, or an electric shock which does not require hospitalization or a long-term going to the

hospital.

*2 : “Property damage” means an enlarged damage concerned to property, or breakage of materials.