MITSUBISHI PLA-A-BA4 User Manual

Air-Conditioners

Indoor unit

PLA-A.BA4

OPERATION MANUAL

For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

MANUEL D’UTILISATION

Pour une utilisation correcte sans risques, veuillez lire le manuel d’utilisation en entier avant de vous servir du climatiseur.

MANUAL DE INSTRUCCIONES

Lea este manual de instrucciones hasta el nal antes de poner en marcha la unidad de aire acondicionado para

garantizar un uso seguro y correcto.

FOR USER

POUR L’UTILISATEUR

PARA EL USUARIO

English

Français

Español

Contents

1. Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. Parts Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1. Safety Precautions

Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Before installing the unit, make sure you read all the “Safety

Precautions”.

The “Safety Precautions” provide very important points

regarding safety. Make sure you follow them.

Please report to or take consent by the supply authority

before connection to the system.

Warning:

• For appliances not accessible to the general public.

• The unit must not be installed by the user. Ask the dealer or an authorized company to install the unit. If the unit is installed

improperly, water leakage, electric shock or re may result.

• Do not stand on, or place any items on the unit.

• Do not splash water over the unit and do not touch the unit with wet hands. An electric shock may result.

• Do not spray combustible gas close to the unit. Fire may result.

• Do not place a gas heater or any other open-flame appliance where it will be exposed to the air discharged from the unit. Incomplete combustion may result.

• Do not remove the front panel or the fan guard from the outdoor unit when it is running.

Caution:

• Do not use any sharp object to push the buttons, as this may damage the remote controller.

• Never block or cover the indoor or outdoor unit’s intakes or outlets.

Symbols used in the text

Warning: Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution: Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates a part which must be grounded.

• When you notice exceptionally abnormal noise or vibration, stop

operation, turn off the power switch, and contact your dealer.

•

Never insert ngers, sticks etc. into the intakes or outlets.

• If you detect odd smells, stop using the unit, turn off the power

switch and consult your dealer. Otherwise, a breakdown, electric

shock or re may result.

• This air conditioner is NOT intended for use by children or inrm

persons without supervision.

• Young children must be supervised to ensure that they do not

play with the air conditioner.

• If the refrigeration gas blows out or leaks, stop the operation of

the air conditioner, thoroughly ventilate the room, and contact

your dealer.

Disposing of the unit

When you need to dispose of the unit, consult your dealer.

2. Parts Names

Indoor Unit

PLA-A.BA4 Fan steps 4 steps Vane Auto with swing Louver – Filter Long-life Filter cleaning indication 2

,500 hr

Air outlet

Vane

Filter

Air intake

2. Parts Names

Power

Earth

Service Panel

Indoor-Outdoor Connection wire

Ref. Pipes

ON/OFF

TEMP.

COOL

DRY

AUTO

FAN

HEAT

COOL

DRY

AUTO

FAN

HEAT

Remote controller (Optional parts)

Radio frequency interface Wired remote controller IR wireless remote controller

RF thermostat

Note: (Only for IR wireless remote controller)

When using the IR wireless remote controller, point it towards the receiver on the indoor unit. If the IR wireless remote controller is operated within approximately two minutes after power is supplied to the indoor unit, the indoor unit may beep

twice as the unit is performing the initial automatic check.

The indoor unit beeps to conrm that the signal transmitted from the IR wireless remote controller has been received. Signals can be received up to

approximately 7 meters in a direct line from the indoor unit in an area 45° to the left and right of the unit. However, illumination such as uorescent

lights and strong light can affect the ability of the indoor unit to receive signals. If the operation lamp near the receiver on the indoor unit is blinking, the unit needs to be inspected. Consult your dealer for service. Handle the IR wireless remote controller carefully! Do not drop the IR wireless remote controller or subject it to strong shocks. In addition, do not get

the IR wireless remote controller wet or leave it in a location with high humidity. To avoid misplacing the IR wireless remote controller, install the holder included with the IR wireless remote controller on a wall and be sure to al-

ways place the IR wireless remote controller in the holder after use.

Outdoor unit

3. Operation

Reset 1

horizontal

2 3 4 5

Horizontal airflow

Downward

Fixing

The airflow direction of this outlet is fixed in particular direction.

Wired remote controller setting

The airflow direction of this outlet is controlled by the airflow direction setting of wired remote contoller.

When it is cold because of direct airflow, the airflow direction can be fixed horizontally to avoid direct airflow.

MITSUBISHI

ELECTRIC

label

Outlet No.4

Outlet No.2

Outlet No.3

Outlet No.1

Note: "0" indicates all outlets.

About the operation method, refer to the operation manual that comes with each remote controller.

3.1. Turning ON/OFF

Note: Even if you press the ON/OFF button immediately after shutting down the operation is progress, the air conditioner will not start for about three minutes. This is to prevent the internal components from being damaged.

3.2. Operation mode select

Cool/ Dry/ Fan/ Heat/ Automatic (cool/heat)/ ventilation modes are available.

Note:

Heat

and Automatic modes can not be available for cooling only units.

Ventilation mode: only indicated on the following condition.

Wired remote controller is used and LOSSNY is connected.

Information for multi system air conditioner (Outdoor unit: MXZ series)

Multi system air conditioner (Outdoor unit: MXZ series) can connect two or more indoor units with one outdoor unit. Accord ing to the capacity, two or more units can operate simultaneously.

• When you try to operate two or more indoor units with one outdoor

unit simultaneously, one for the cooling and the other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that will start the operation later cannot operate, indicating an operation state in blinking. In this case, please set all the indoor units to the same operation mode.

• There might be a case that the indoor unit, which is operating in (AUTO)

mode. Cannot change over to the operating mode (COOL HEAT) and becomes a state of standby.

• When indoor unit starts the operation while the defrosting of outdoor

unit is being done, it takes a few minutes (max. about 15 minutes) to blow out the warm air.

• In the heating operation, though indoor unit that does not operate may

get warm or the sound of refrigerant owing may be heard, they are not malfunction. The reason is that the refrigerant continuously ows

into it.

Automatic operation

According to a set temperature, cooling operation starts if the room

temperature is too hot and heating operation starts if the room temperature is too cold.

During automatic operation, if the room temperature changes and

remains 2 °C, 4 °F or more above the set temperature for 15 minutes, the air conditioner switches to cooling mode. In the same way, if the room temperature remains 2 °C, 4 °F or more below the set temperature for 15 minutes, the air conditioner switches to heating mode.

3.3. Fan speed setting

Note:

The number of available fan speeds depends on the type of unit connected.

In the following cases, the actual fan speed generated by the unit will differ

from the speed shown the remote controller display.

1. When the unit is in “STAND BY” or “DEFROST” states.

2. When the temperature of the heat exchanger is low in the heating mode. (e.g. immediately after heating operation starts)

3. In HEAT mode, when room temperature is higher than the temperature setting.

When the unit is in DRY mode.

3.4. Airow direction setting

Note:

During swing operation, the directional indication on the screen dose not

change in sync with the directional vanes on the unit.

Available directions depend on the type of unit connected. In the following cases, the actual air direction will differ from the direction

indicated on the remote controller display.

When the unit is in “STAND BY” or “DEFROST” states.

2. Immediately after starting heater mode (while the system is waiting for the mode change to take effect).

In heat mode, when room temperature is higher than the temperature

setting.

<How to set the xed up/down air direction (Only for

wired remote controller)>

Note:

●

This function cannot be set depending on the outdoor unit to be connected.

• For PLA-A.BA4, only the particular outlet can be fixed to certain

direction with the procedures below. Once xed, only the set outlet is xed every time air conditioner is turned on. (Other outlets follow UP/

DOWN air direction setting of wired remote controller.)

Explanation of word

• “Refrigerant address No.” and “Unit No.” are the numbers given to each air conditioner.

• “Outlet No.” is the number given to each outlet of air conditioner. (Refer to the right.)

• “Up/Down air direction” is the direction (angle) to x.

Cooling mode 15 minutes (switches

15 m inutes ( swi tche s from cooling to heating)

from heating to cooling)

Set temperature +

Set temperature

Set temperature -

2 °C, +4 °F

2 °C, -4 °F

3. Operation

Changes the selection(No.).

Unit No.

“1-4”

Refrigerant address No.

“00-15”

Outlet No. “1-4”or “0”

Up/Down air direction

5 steps or

cancel

Press for 2 seconds to change / cancel “Fixed airflow direction mode”.

Pressing the button with either refrigerant address No., unit no. or outlet No. blinking, ...

Only the air conditioner with the No. on wired remote controller and its outlet are set to the setting 5. (Other outlets are closed.)

It is used to identify the air conditioner and outlet to set.

Pressing the button with Up/Down air direction indicater blinking

Only the air conditioner with the No. on Wired remote controller

and its outlet are fixed at “Up/Down air

direction” blinking.

This is used only to decide direction conclusively. Attention: Be careful not to set wrong air conditioner.

Attention

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set temperature buttons

Down

Mode button (Return button)

ON/OFF button

Fan Speed button

Filter button (<Enter> button)

Check button (Clear button)

Resets the fixed airflow direction mode.

Sends the information on wired remote controller display.

·Refer to the next page for details.

Moves between the selected(blinking) parts.

Unit No. Outlet No.

Up/Down air direction

Refrigerant addres No.

Air blows downward after it becomes “fixed airflow direction mode”

“Fixed airflow direction mode” display

Note: "0" indicates

all outlets.

Outlet No.

Unit No.

Up/Down air direction

Refrigerant addres No.

MITSUBISHI

ELECTRIC

label

Outlet No.4

Outlet No.2

Outlet No.3

Outlet No.1

Air direction changes

This indicates NO FIXED SETTING(canceled)

Up/Down air direction

Unit No. Outlet No.

Refrigerant addres No.

Operation buttons (During the xed airow direction mode)

[1] To turn off air conditioner and change the wired remote

controller to “Fixed airow direction mode”

1. Press ON/OFF button to turn off the air conditioner.

2. Press Fan Speed button and Filter button for more than

2 seconds simultaneously and it becomes the xed airow direction

mode after a while.

[2] To select and identify the outlet to set

1. Press Set Temperature button to change number with the outlet No. blinking. Select outlet No. to set.

2. Press Filter

controller.

3. Wait for 15 seconds . How does the air conditioner run?

Only the air from the selected outlet blows downward. Go to step[3]. Air from the wrong outlet blows downward. Repeat 1 and set again. All outlets are closed. The numbers of the air conditioner (refrigerant address No.,

Unit No.) are wrong. Refer to How to nd air conditioner No..

button to send the information on wired remote

[3] To x air direction

1. Press Mode button (Return button) to blink Up/Down air direction indicater.

2. Press Set Temperature button until the direction to set is chosen.

3. Press Filter button to send the information on wired remote controller to air conditioner.

4. Wait for 15 seconds . How does the air conditioner run?

Airow direction is set in the selected direction. The xed setting completed (Go to step [4].) Airow direction is set in the wrong direction. Repeat 2. and set again.

[4] To cancel “Fixed airow direction mode”

1. Press ON/OFF button to cancel “Fixed airflow direction mode”. It is also canceled by pressing Fan Speed button and Filter button

for more than 2 seconds simultaneously.

2. Do not operate wired remote controller for 30 seconds after the “Fixed

airow direction mode” is canceled. It does not accept even if it is

operated.

Check from refrigerant address 00 at first.

Change to unit No.1 and check

Change to unit No.2 and check

Change to unit No.3 and check

Change to unit No.4 and check

Change to unit No.1 and check

Change to unit No.2 and check

Change to unit No.3 and check

Change to unit No.4 and check

Change to unit No.1 and check

Change to unit No.2 and check

Change to unit No.3 and check

Change to unit No.4 and check

Change to unit No.1 and check

Change to unit No.2 and check

Change to unit No.3 and check

Change to unit No.4 and check

When “Err” is displayed, refrigerant address does not heve further “unit No.”.

Change to the next “refrigerant address No.”. (Refrigerant No “00”~max. No.“15”)

Outlet No.

Up/Down air direction

Refrigerant addres No.

Unit No.

Outlet No.

Up/Down air direction

Refrigerant addres No.

Unit No.

Err

Outlet No.

Up/Down air direction

Refrigerant addres No.

Unit No.

3. Operation

How to nd air conditioner No.

Each air conditioner has its own refrigerant address No. and unit No. (Example below).

To nd air conditioner No. to set, refer to the procedures below.

Air conditioner No. is found by its airflow direction with the unit No. changed one after the other.

Unit No. “1” Unit No. “2” Unit No. “1”

As for this air conditioner,

air conditioner No. is “Unit No.1”

of refrigerant address “0”.

Refrigerant

address No. “00”

Refrigerant

address No. “01”

Unit No. “2”

Wired remote controller

[2] To check by changing unit No. one after the other

(Maximum unit No. is 4)

1. Press Mode button (Return button)

and unit No. blinks.

Adjust to the next unit No. with Set Temperature button . (refrigerant address No. 00 is remained.)

2. Press Filter button to send the information on wired remote controller.

3. Wait for 15 seconds . How does the air conditioner run?

Only air from the outlet which No. displayed on

blows downward.

wired

remote controller

No. displayed in wired remote controller is air conditioner

No. (Checking completed).

All outlets are closed. Repeat [1] and check. (If all the numbers are checked up to No.4 and is not found, go to [3].) “Err” is displayed on wired remote controller. The refrigerant address does not have further unit No.. (Go to [3].)

[1] To check refrigerant address No. and unit No.

1. Press Mode button (Return button) and unit No. or refrigerant address No. blinks.

Adjust refrigerant address No.to “00” and unit No.“1” with Set Temperature button .

[3] To check Unit No. of following refrigerant address No.(Maxmum

refrigerant address No. is 15)

Press Mode button (Return button) to blink refrigerant address No..

1. Adjust refrigerant No. with Set Temperature button .

* By changing refrigerant address, unit No. and outlet No. turn to initial

display.

2. Go back to [2] and check Unit No. again from Unit No. 1 in order.

To clear xed setting

To clear all xed setting(reset to factory default), press check button(clear botton)

for wired more than 3 seconds in xed airow direction mode.

Display of wired remote controller blinks and the set information is cleared.

Note: This operation clears the fixed setting information of all air conditioner connected to the wired remote controller.

3.5. Ventilation

For LOSSNAY combination

The following 2 patterns of operation is available.

• Run the ventilator together with the indoor unit.

• Run the ventilator independently.

Note: (for IR wireless remote controller and RF thermostat)

Running the ventilator independently is not available. No indication on the remote controller.

2. Press Filter controller.

3. Wait for 15 seconds . How does the air conditioner run?

Only air from the outlet which No. displayed on wired remote

controller blows downward.

Refrigerant address No.00 and unit No.1 are the air conditioner No.. All outlets are closed. Go to step [2].

button to send the information on wired remote

4. Timer

Timer functions are different by each remote controller. For details on how to operate the remote controller, refer to the appropriate operation manual included with each remote controller.

5. Care and Cleaning

Following indication shows that the filter needs cleaning.

• Wired remote controller : “FILTER”

• RF thermostat : “Clean Filter” Ask authorized people to clean the filter.

When resetting “FILTER” or “Clean Filter” display. Resetting the indication, refer to the operation manual of each remote controller.

Note:

When two or more different types of indoor unit are controlled, the cleaning

period differs with the type of lter. When the master unit cleaning period arrives, “FILTER” is displayed. When the lter display goes off, the

cumulative time is reset. (Only for wired remote controller)

“FILTER” or “Clean Filter” indicates the cleaning period when the air

conditioner was used under general indoor air conditions by criteria time. Since the degree of dirtiness depends on the environmental conditions,

clean the lter accordingly.

The lter cleaning period cumulative time differs with the model. This indication is not available for IR wireless remote controller.

Cleaning the lters

• Clean the filters using a vacuum cleaner. If you do not have a vacuum

cleaner, tap the lters against a solid object to knock off dirt and dust.

• If the lters are especially dirty, wash them in lukewarm water. Take care to rinse off any detergent thoroughly and allow the lters to dry completely

before putting them back into the unit.

Caution:

• Do not dry the lters in direct sunlight or by using a heat source, such as

an electric heater: this may warp them.

• Do not wash the lters in hot water (above 50°C, 122°F), as this may warp

them.

• Make sure that the air lters are always installed. Operating the unit without air lters can cause malfunction.

Caution:

• Before you start cleaning, stop operation and turn OFF the power supply.

• Indoor units are equipped with lters to remove the dust of sucked-in air. Clean the lters using the methods shown in the following sketches.

Filter removal

Caution:

• In removing the lter, precautions must be taken to protect your eyes from

dust. Also, if you have to climb up on a stool to do the job, be careful not to fall.

• When the lter is removed, do not touch the metallic parts inside the indoor

unit, otherwise injury may result.

Pull the knob on the intake grille in the direction indicated by

the arrow and it should open. Open the intake grille. Release the knob on the center edge of the intake grille and

pull the lter forward to remove the lter.

Knob Grille Intake grille Filter

6. Trouble Shooting

WEEKLY

SIMPLE

AUTO OFF

Having trouble? Here is the solution. (Unit is operating normally.)

Air conditioner does not heat or cool well.

When heating operation starts, warm air does not blow from the indoor unit soon.

Clean the lter. (Airow is reduced when the lter is dirty or clogged.) Check the temperature adjustment and adjust the set temperature. Make sure that there is plenty of space around the outdoor unit. Is the

indoor unit air intake or outlet blocked?

Has a door or window been left open? Warm air does not blow until the indoor unit has sufciently warmed up.

During heating mode, the air conditioner stops before the set room temperature is reached.

Airow direction changes during operation or airow direction cannot be

set.

When the airflow direction is changed, the vanes always move up and

down past the set position before nally stopping at the position.

A owing water sound or occasional hissing sound is heard.

A cracking or creaking sound is heard.

The room has an unpleasant odor.

A white mist or vapor is emitted from the indoor unit.

Water or vapor is emitted from the outdoor unit.

The operation indicator does not appear in the wired remote controller display. (*1)

“

” appears in the wired remote controller display. (*1) During central control, “ ” appears in the wired remote controller dis-

When restarting the air conditioner soon after stopping it, it does not operate even though the ON/OFF button is pressed. Air conditioner operates without the ON/OFF button being pressed. (*1)

Air conditioner stops without the ON/OFF button being pressed. (*1)

Wired remote controller timer operation cannot be set. (*1)

“PLEASE WAIT” appears in the wired remote controller display. (*1) An error code appears in the remote controller display.

Draining water or motor rotation sound is heard.

When the outdoor temperature is low and the humidity is high, frost

may form on the outdoor unit. If this occurs, the outdoor unit performs a defrosting operation. Normal operation should begin after approximately 10 minutes.

During cooling mode, the vanes automatically move to the horizontal

(down) position after 1 hour when the down (horizontal) airow direction

is selected. This is to prevent water from forming and dripping from the vanes.

During heating mode, the vanes automatically move to the horizontal

airow direction when the airow temperature is low or during defrosting

mode.

When the airow direction is changed, the vanes move to the set

position after detecting the base position.

These sounds can be heard when refrigerant is owing in the air

conditioner or when the refrigerant ow is changing.

These sounds can be heard when parts rub against each due to

expansion and contraction from temperature changes.

The indoor unit draws in air that contains gases produced from the

walls, carpeting, and furniture as well as odors trapped in clothing, and then blows this air back into the room.

If the indoor temperature and the humidity are high, this condition may

occur when operation starts.

During defrosting mode, cool airow may blow down and appear like a

mist.

During cooling mode, water may form and drip from the cool pipes and

joints.

During heating mode, water may form and drip from the heat exchanger. During defrosting mode, water on the heat exchanger evaporates and

water vapor may be emitted.

Turn on the power switch. “ ” will appear in the wired remote controller

display.

play and air conditioner operation cannot be started or stopped using the wired remote controller.

Wait approximately three minutes. (Operation has stopped to protect

the air conditioner.)

Is the on timer set?

Press the ON/OFF button to stop operation.

Is the air conditioner connected to a central wired remote controller?

Consult the concerned people who control the air conditioner.

Does “ ” appear in the wired remote controller display?

Consult the concerned people who control the air conditioner.

Has the auto recovery feature from power failures been set?

Press the ON/OFF button to stop operation.

Is the off timer set?

Press the ON/OFF button to restart operation.

Is the air conditioner connected to a central wired remote controller?

Consult the concerned people who control the air conditioner.

Does “ ” appear in the wired remote controller display?

Consult the concerned people who control the air conditioner.

Are timer settings invalid?

If the timer can be set,

the wired remote controller display.

The initial settings are being performed. Wait approximately 3 minutes. The protection devices have operated to protect the air conditioner. Do not attempt to repair this equipment by yourself.

Turn off the power switch immediately and consult your dealer. Be

sure to provide the dealer with the model name and information that appeared in the remote controller display.

When cooling operation stops, the drain pump operates and then stops.

Wait approximately 3 minutes.

, or

appears in

6. Trouble Shooting

Having trouble? Here is the solution. (Unit is operating normally.)

Noise is louder than specications.

The indoor operation sound level is affected by the acoustics of the

particular room as shown in the following table and will be higher than

the noise specication, which was measured in anechoic room.

Nothing appears in the IR wireless remote controller display, the display is faint, or signals are not received by the indoor unit unless the IR wireless remote controller is close. (*

The operation lamp near the receiver for the IR wireless remote controller on the indoor unit is blinking. (*

(*1): Only for wired remote controller. (*2): Only for IR wireless remote controller.

High sound absorbing rooms

Location examples

Noise levels 3 to 7 dB 6 to 10 dB 9 to 13 dB

The batteries are low.

Replace the batteries and press the Reset button.

If nothing appears even after the batteries are replaced, make sure that

the batteries are installed in the correct directions (+, –).

The self diagnosis function has operated to protect the air conditioner. Do not attempt to repair this equipment by yourself.

Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name.

Broadcasting studio, music

room, etc.

Normal rooms

Reception room,

hotel lobby, etc.

Low sound absorbing rooms

Ofce, hotel

room

7. Specications

Model PLA-A12BA4 PLA-A18BA4 PLA-A24BA4 PLA-A30BA4 PLA-A36BA4 PLA-A42BA4 Power source (Phase, Voltage<V>) Frequency <Hz> Fan motor <FLA> 0. MCA <A> 1 1 1 1 2 2 MOCP <A> 15 15 15 15 15 15 Dimension (Height) <inch> 10-3/16 (1-3/8) 11-3/4 (1-3/8) Dimension (Width) <inch> 33-1/16 (37-3/8) Dimension (Depth) <inch> 33-1/16 (37-3/8) Airow DRY <CFM> (Low-Middle2-Middle1-High) WET <CFM> Noise level (Low-Middle2-Middle1-High) <dB> 27-28-29-31 28-29-31-32 28-29-31-32 28-30-32-34 32-34-37-40 34-36-39-41 Net weight <lbs> 49 (13) 51 (13) 55 (13)

*1 The gure in ( ) indicates GRILL’S.

22 0.36 0.36 0.51 0.94 1.00

390-420-460-530 420-490-570-640 420-490-570-640 490-570-640-740 710-810-920-1060 780-880-990-1090 350-390-420-490 390-460-530-600 390-460-530-600 460-530-600-710 670-780-880-1030 740-850-950-1060

Single

208/230,60

+ 19 hidden pages