Mitsubishi Electric PEA-RP170, PEA-RP200, PEA-RP250 WGA, PEA-RP200 GA, PEA-RP250 GA Operation Manual

Air-Conditioners
INDOOR UNIT

PEA-RP170, 200, 250 WGA

FOR USER

OPERATION MANUAL

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

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2

[Fig. 2.0.1]

[Fig. 2.0.2]

B

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D

F

A Air outlet
B Air inlet
C Air filter

5

A

[Fig. 5.0.1]

A

B

A Air outlet C Air filter
B Air inlet D Air filter handle

C

C

D

A

ON/OFF TEMP.

A LCD remote controller

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SWI

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Contents

1. Safety precautions ...................................................................................... 3

1.1. Installation ................................................................................. 3

1.2. During operation ........................................................................ 4

1.3. Disposing of the unit .................................................................. 4

2. Names and functions of various parts ........................................................ 4

3. Operation .................................................................................................... 5

3.1. Switching the unit ON/OFF ........................................................ 6

3.2. Mode select ............................................................................... 6

3.3. Selecting a temperature

3.4. Selecting a fan speed

TEMP.

............................................... 6

........................................................ 6

1. Safety precautions

s Before operating the unit, make sure you read all the “Safety

precautions”.

s “Safety precautions” lists important points about safety.

Please be sure to follow them.

Symbols used in the text

Warning:

Describes precautions that should be observed to avoid the risk of injury or
death to the user.

Caution:

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

Symbols put on the unit

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Beware of electric shock. (This symbol is displayed on the main unit label.)

<Color: yellow>

Warning:

Carefully read the labels affixed to the main unit.

1.1. Installation

s After you have read this manual, keep it and the Installation Manual in a

safe place for easy reference whenever a question arises. If the unit is
going to be operated by another person, make sure that this manual is
given to him or her.

Warning:

• The unit should 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 fire may result.

• Use only accessories authorized by Mitsubishi Electric and ask your
dealer or an authorized company to install them. If accessories are in­stalled improperly, water leakage, electric shock or fire may result.

• The Installation Manual details the suggested installation method. Any
structural alteration necessary for installation must comply with local
building code requirements.

• Never repair the unit or transfer it to another site by yourself. If repair is
performed improperly, water leakage, electric shock or fire may result. If
you need to have the unit repaired or moved, consult your dealer.

• The appliance is not intended for use by young children or infirm per­sons without supervision.

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

3.5. Setting the day of the week and time ........................................ 6

3.6. Using the timer .......................................................................... 7

3.7. Locking the remote controller buttons (Operation function limit

controller) ................................................................................ 10

3.8. Other indications ..................................................................... 10

4. The smart way to use ............................................................................... 11

5. Caring for the machine ............................................................................. 11

6. Troubleshooting ......................................................................................... 12

7. Installation and transferring works, and checking ..................................... 13

8. Specifications ............................................................................................ 13

1) Outdoor unit

Warning:

• The outdoor unit must be installed on a stable, level surface, in a place
where there is no accumulation of snow, leaves or rubbish.

• Do not stand on, or place any items on the unit. You may fall down or the
item may fall, causing injury.

Caution:

The outdoor unit should be installed in a location where air and noise emit­ted by the unit will not disturb the neighbours.

2) Indoor unit

Warning:

The indoor unit should be securely installed. If the unit is loosely mounted, it
may fall, causing injury.

3) Remote controller

Warning:

The remote controller should be installed in such a way that children cannot
play with it.

4) Drain hose

Caution:

Make sure that the drain hose is installed so that drainage can go ahead
smoothly. Incorrect installation may result in water leakage, causing dam­age to furniture.

5) Power line, fuse or circuit breaker

Warning:

• Make sure that the unit is powered by a dedicated line. Other appliances
connected to the same line could cause an overload.

• Make sure that there is a main power switch.

• Be sure to adhere to the unit’s voltage and fuse or circuit breaker ratings.
Never use a piece of wire or a fuse with a higher rating than the one
specified.

6) Grounding

Caution:

• The unit must be properly grounded. Never connect the grounding wire
to a gas pipe, water pipe, lightning conductor or telephone grounding
wire. If the unit is not grounded properly, electric shock may result.

• Check frequently that the ground wire from the outdoor unit is properly
connected to both the unit’s ground terminal and the grounding elec­trode.

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1.2. During operation

Caution:

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

• Do not twist or tug on the remote controller cord as this may damage the
remote controller and cause malfunction.

• Never remove the upper case of the remote controller. It is dangerous to
remove the upper case of the remote controller and touch the printed
circuit boards inside. Doing so can result in fire and failure.

• Never wipe the remote controller with benzene, thinner, chemical rags,
etc. Doing so can result in discoloration and failure. To remove heavy
stains, soak a cloth in neutral detergent mixed with water, wring it out
thoroughly, wipe the stains off, and wipe again with a dry cloth.

• Never block or cover the indoor or outdoor unit’s intakes or outlets. Tall
items of furniture underneath the indoor unit, or bulky items such as
large boxes placed close to the outdoor unit will reduce the unit’s effi­ciency.

Warning:

• 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.

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Warning:

• Do not remove the front panel or the fan guard from the outdoor unit
when it is running. You could be injured if you touch rotating, hot or high­voltage parts.

• Never insert fingers, sticks etc. into the intakes or outlets, otherwise in­jury may result, since the fan inside the unit rotates at high speed. Exer-

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cise particular care when children are present.

• If you detect odd smells, stop using the unit, turn off the power switch
and consult your dealer. Otherwise, a breakdown, electric shock or fire
may result.

• When you notice exceptionally abnormal noise or vibration, stop opera­tion, turn off the power switch, and contact your dealer.

• Do not over-cool. The most suitable inside temperature is one that is

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within 5

• Do not leave handicapped people or infants sitting or standing in the

• Do not direct the airflow at plants or caged pets.

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• Ventilate the room frequently. If the unit is operated continuously in a

°C of the outside temperature.

path of the airflow from the air-conditioner. This could cause health prob­lems.

Caution:

closed room for a long period of time, the air will become stale.

In case of failure

Warning:

• Never remodel the air conditioner. Consult your dealer for any repair serv­ice. Improper repair work can result in water leakage, electric shock, fire,
etc.

• If the remote controller displays an error indication, the air conditioner
does not run, or there is any abnormality, stop operation and contact
your dealer. Leaving the unit as it is under such conditions can result in
fire or failure.

• If the power breaker is frequently activated, get in touch with your dealer.
Leaving it as it is can result in fire or failure.

• If the refrigeration gas blows out or leaks, stop the operation of the air
conditioner, thoroughly ventilate the room, and contact your dealer. Leav­ing the unit as it is can result in accidents due to oxygen deficiency.

When the air conditioner is not to be used for a long
time

• If the air conditioner is not to be used for a long time due to a seasonal
change, etc., run it for 4 - 5 hours with the air blowing until the inside is
completely dry. Failing to do so can result in the growth of unhygienic,
unhealthy mold in scattered areas throughout the room.

• When it is not to be used for an extended time, keep the [power supply]
turned OFF.
If the power supply is kept on, several watts or several tens of watts will
be wasted. Also, the accumulation of dust, etc., can result in fire.

• Keep the power switched ON for more than 12 hours before starting op­eration. Do not turn the power supply OFF during seasons of heavy use.
Doing so can result in failure.

1.3. Disposing of the unit

Warning:

When you need to dispose of the unit, consult your dealer. If pipes are re­moved incorrectly, refrigerant (fluorocarbon gas) may blow out and come
into contact with your skin, causing injury. Releasing refrigerant into the
atmosphere also damages the environment.

2. Names and functions of various parts

INL

Indoor unit

• Air inlet: Return the indoor air.

• Filter: Part to remove visible dust and dirt.

• Air outlet: Blow the cooled/warmed air into the room.

Model PEA-170, 200, 250
[Ceiling concealed type]

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(For details on how to clean, refer to page 11.)

[Fig. 2.0.1] (P.2)

A Air outlet B Air inlet C Air filter

LCD remote Controller

• Check out your remote controller.
Different controllers are used for different systems.

[Fig. 2.0.2] (P.2)

A LCD remote controller

4

3. Operation

Remote controller-Button

Opening the door.

1 Set Temperature buttons

Down

Up

2 Timer Menu button (Monitor/Set button)

3 Mode button (Return button)

4 Set Time buttons

Back

Ahead

5 Timer On/Off button (Set Day button)

6 Louver button ( Operation button)

To preceding operation number.

7 Ventilation button ( Operation button)

To next operation number.

8 ON/OFF button

9 Fan Speed button

1

2

3

PAR-21MAA

TEMP.

MENU

ON/OFF

BACK DAY

MONITOR/SET

CLOCK

OPERATION

ON/OFF

FILTER

CHECK

CLEAR

TEST

8

9

0

A

B

C

45 67

0 Filter button (<Enter> button)

A Test Run button

B Check button (Clear button)

C Airflow Up/Down button

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Notes:

• If you press a button for a feature that is not installed at the indoor unit,
the remote controller will display the “Not Available” message.

• If you are using the remote controller to drive multiple indoor units, this
message will appear only if the feature is not present at the parent unit.

• Never expose the remote controller to direct sunlight. Doing so can re­sult in the erroneous measurement of room temperature.

• Never place any obstacle around the lower right-hand section of the re­mote controller. Doing so can result in the erroneous measurement of
room temperature.

Remote controller-Display

C

D
E

FGHJKMIL

A Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set.
If the simple or Auto Off timer is set, shows the time remaining.

B “Sensor” indication

Displayed when the remote controller sensor is used.

C Identifies the current operation

Shows the operating mode, etc.
* Multilanguage display is supported.

D “Centrally Controlled” indicator

Indicates that operation of the remote controller has been prohibited by a main controller.

E “Timer Is Off” indicator

Indicates that the timer is off.

F Temperature Setting

Shows the target temperature.

G Up/Down Air Direction indicator

The indicator shows the direction of the outcoming airflow.

H “One Hour Only” indicator

Displayed if the airflow is set to weak and downward during COOL or DRY mode. (Opera­tion varies according to model.)
The indicator goes off after one hour, at which time the airflow direction also changes.

A

TIME SUN MON TUE WED THU FRI SAT
TIMER

AFTER

ERROR CODE

˚F˚C

ONLY1Hr.

B

ON

OFFHrAFTER

˚F˚C

I Louver display

J Room Temperature display

K (Power On indicator)

L Ventilation indicator

M Fan Speed indicator

N “Locked” indicator

O “Clean The Filter” indicator

P Timer indicators

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

Indicates the action of the swing louver. Does not appear if the louver is stationary.

Shows the room temperature.

Indicates that the power is on.

Appears when the unit is running in Ventilation mode.

Shows the selected fan speed.

Indicates that remote controller buttons have been locked.

Comes on when it is time to clean the filter.

The indicator comes on if the corresponding timer is set.

N

O
P

Note:

• For purposes of this explanation, all parts of the display are shown as lit.
During actual operation, only the relevant items will be lit.

E

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E

B

C

3

2

TEMP.

MENU

MONITOR/SET

BACK DAY

PAR-21MAA

˚C

CLOCK

ON/OFF

˚C

OPERATION

SIMPLE

ON/OFF

FILTER

CHECK

CLEAR

D

A

1

4

TEST

Before starting operation

• Start running after the “PLEASE WAIT” display has disappeared. The “PLEASE

WAIT” display briefly appears on the B display (max. 3 minutes) when the
power is turned on and after a power failure. This does not indicate any failure
of the air conditioner.

• During heating operation, even if the indoor unit is set to operation while the

GB

outdoor unit is in defrosting operation, operation starts after the defrosting op­eration of the outdoor unit has ended.

3.1. Switching the unit ON/OFF

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s To start an operation:

ss

1. Press the ON/OFF button 1.

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The ON indicator A should light up.

ss

s To stop an operation:

ss

1. Press the ON/OFF button 1 again.

The ON indicator A goes off.

• The power supply should not be turned off while the air conditioner is in use.
This can cause the unit to break down.

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

• If the operation stops due to a power failure, the unit will not automatically
restart until the power has been restored. Press the ON/OFF button to restart.

3.2. Mode select

1. If the unit is off, press the ON/OFF button 1 to turn it on.

The ON indicator A should light up.

2. Press the operation mode ( ) button 2 and select the operation

mode.

B (COOL) Cooling mode

s

(DRY) Drying mode

(FAN) Fan mode

(HEAT) Heating mode

(AUTO) Automatic (cooling/heating) mode

For cooling

Press the

For dry

Press the

• Dry operation cannot be carried out at a room temperature of less than 18 °C.

For fan

Press the

• The fan operation functions to circulate the air in the room.

• The temperature of the room cannot be set by fan operation.

Never expose your body directly to cool air for a long time. Excessive expo­sure to cool air is bad for your health, and should therefore be avoided.

Dry operation

The dry is a microcomputer-controlled dehumidifying operation which controls ex­cessive air-cooling according to the room temperature of your choice. (Not usable
for heating.)

1. Until reaching room temperature of your choice

2. When reaching room temperature of your choice

22

2 [operation mode] button and bring up the “ COOL” display.

22

22

2 [operation mode] button and bring up the “ DRY” display.

22

22

2 [operation mode] button and bring up the “ FAN” display.

22

Caution:

The compressor and indoor fan function is linked motion according to the change
of the room temperature and automatically repeat ON/OFF.

Both the compressor and indoor fan stop.

When stop continues for 10 minutes, the compressor and indoor fan are oper­ated for 3 minutes to keep the humidity low.

For heating

Press the
Regarding displays during heating operation “DEFROST”

Displayed only during the defrosting operation.

“STAND BY”

Displayed from the start of heating operation until the moment warm air blows out.

22

2 [operation mode] button to bring up the “ HEAT” display.

22

For automatic (cooling/heating)

Press the

22

2 [operation mode] button to bring up the “ AUTO” display.

22

Caution:

• When the air conditioner is used together with burners, thoroughly ven­tilate the area. Insufficient ventilation can result in accidents due to oxy­gen deficiency.

• Never place a burner at a place where it is exposed to the airflow from the
air conditioner.
Doing so can result in imperfect combustion of the burner.

• The microcomputer functions in the following cases:

• Air does not blow out when heating starts.

- To prevent any cool air from escaping.

Wait a moment until the airflow comes out naturally.

3.3. Selecting a temperature

TEMP.

s To decrease the room temperature:

1. Press

button 3 to set the desired temperature.

The selected temperature C is displayed.

• Each time you press the button, the temperature value decreases by 1 °C.

ss

s To increase the room temperature:

ss

1. Press

button 3 to set the desired temperature.

The selected temperature C is displayed.

• Each time you press the button, the temperature value increases by 1 °C.

• Available temperature ranges are as follows:

Cooling & Drying: 19 - 30 °C
Heating: 17 - 28 °C
Automatic: 19 - 28 °C

• The display flashes either 8 °C - 39 °C to inform you if the room temperature E
is lower or higher than the displayed temperature. If the temperature is below
8 °C or above 39 °C, the corresponding value (8 °C or 39 °C) will blink on the
display.

3.4. Selecting a fan speed

1. Press button 4 to select a desired fan speed.

• Each time you press the button, available options change with the display D
on the remote controller, as shown below.

Fan speed

2-stage

Remote controller display

Low High

▼

▼

The display and the fan speed of the unit will differ in the following situations:

• When STAND BY and DEFROST are displayed.

• Just after the heating mode (while waiting to change to another mode).

• When the temperature of the room is higher than the temperature setting of

the unit operating in the heating mode.

• In the dry operation, the indoor fan automatically turns to low-speed operation.
Switching of fan speed is impossible.

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

3.5. Setting the day of the week and time

■ Use this screen to change the current day of the week and time setting.

1

Day of the Week &

TIME SUN

˚C

˚C

TEMP.

MENU

2

BACK DAY

PAR-21MAA

MONITOR/SET

CLOCK

ON/OFF

OPERATION

ON/OFF

FILTER

CHECK

CLEAR

TEST

A

Time display

9

4

6

Notes:

• It can be set regardless of the operation of the indoor unit.

• The day and time will not appear if clock use has been disabled at Func­tion Selection of remote controller, refer to Installation Manual.

s How to Set the Day of the Week and Time...

Day of the Week Setting

3

2

1. Press the

TIME SUN

4

Time Setting

or Set Time button A to show display 2.

2. Press the Timer On/Off (Set Day) button 9 to set the day.
* Each press advances the day shown at 3 : Sun → Mon → ... → Fri → Sat.

3. Press the appropriate Set Time button A as necessary to set the time.
* As you hold the button down, the time (at 4) will increment first in minute

intervals, then in ten-minute intervals, and then in one-hour intervals.

4. After making the appropriate settings at Steps 2 and 3, press the Filter
button 4 to lock in the values.

Note:

• Your new entries at Steps 2 and 3 will be cancelled if you press the Mode
(Return) button

22

2 before pressing the Filter

22

button

44

4.

44

5. Press the Mode (Return) button 2 to complete the setting procedure. This will
return the display to the standard control screen, where 1 will now show the
newly set day and time.

Note:

• Remote controller is equipped with a simplified clock with a precision of
about + or - one minute per month.

3.6. Using the timer

This section explains how to set and use the timer. You can use Function Selection
of remote controller to select which of three types of timer to use: 1 Weekly timer,
2 Simple timer, or 3 Auto Off timer.
For information about how to set the Function Selection of remote controller, refer
to Installation Manual.

3.6.1. Using the Weekly Timer

■ The weekly timer can be used to set up to eight operations for each day of the
week.

• Each operation may consist of any of the following: ON/OFF time together

with a temperature setting, or ON/OFF time only, or temperature setting only.

• When the current time reaches a time set at this timer, the air conditioner

carries out the action set by the timer.

■ Time setting resolution for this timer is 1 minute.

Notes:
*1. Weekly Timer/Simple Timer/Auto Off Timer cannot be used at the same

time.

*2. The weekly timer will not operate when any of the following conditions is

in effect.
The timer feature is off; the system is in an malfunction state; a test run
is in progress; the remote controller is undergoing self-check or remote
controller check; the user is in the process of setting a function ; the user
is in the process of setting the timer; the user is in the process of setting
the current day of the week or time; the system is under central control.
(Specifically, the system will not carry out operations (unit on, unit off, or
temperature setting) that are prohibited during these conditions.)

Operation No.

42 3

BACK DAY

MONITOR/SET

PAR-21MAA

MENU

TEMP.

CLOCK

Day Setting

SUN

ON/OFF

˚C

OPERATION

ON

WEEKLY

ON/OFF

FILTER

CHECK

CLEAR

1

3
1
B

TEST

4
0

s How to Set the Weekly Timer

1. Be sure that you are at a standard control screen, and that the weekly timer

indicator 1 is shown in the display.

2. Press the Timer Menu button B, so that the “Set Up” appears on the screen

(at 2).
(Note that each press of the button toggles the display between “Set Up”
and “Monitor”.)

3. Press the Timer On/Off (Set Day) button 9 to set the day. Each press ad-

vances the display at 3 to the next setting, in the following sequence: “Sun
Mon Tues Wed Thurs Fri Sat” → “Sun” → ... → “Fri” → “Sat” → “Sun Mon
Tues Wed Thurs Fri Sat”...

4. Press the

or Operation button (7 or 8) as necessary to select

the appropriate operation number (1 to 8) 4.

* Your inputs at Steps 3 and 4 will select one of the cells from the matrix

illustrated below. (The remote-controller display at left shows how the
display would appear when setting Operation 1 for Sunday to the values
indicated below.)

Setup Matrix

Op No. Sunday Monday ··· Saturday

• 8:30

• ON

No. 1

No. 2

• 23 °C

• 10:00

• OFF

• 10:00

• OFF

• 10:00

• OFF

• 10:00

• OFF

···

No. 8

<Operation 1 settings for
Sunday>

▲

Start the air conditioner
at 8:30, with the tem­perature set to 23 °C.

▲

<Operation 2 settings for
every day>
Turn off the air condi­tioner at 10:00.

Note:
By setting the day to “Sun Mon Tues Wed Thurs Fri Sat”, you can set the
same operation to be carried out at the same time every day.
(Example: Operation 2 above, which is the same for all days of the week.)

s Setting the Weekly Timer

Shows the time
setting

SUN

5

Shows the selected operation (ON or OFF)

6

* Does not appear if operation is not set.

ON

˚C

WEEKLY

7

Shows the temperature setting
* Does not appear if tempera-

ture is not set.

5. Press the appropriate Set Time button A as necessary to set the desired

time (at 5).

* As you hold the button down, the time first increments in minute inter-

vals, then in ten-minute intervals, and then in one-hour intervals.

6. Press the ON/OFF button 1 to select the desired operation (ON or OFF),

at 6.

* Each press changes the next setting, in the following sequence: No dis-

play (no setting) → “ON” → “OFF”

7. Press the appropriate Set Temperature button 3 to set the desired tem-

perature (at 7).

* Each press changes the setting, in the following sequence: No display

(no setting) ⇔ 24 ⇔ 25 ⇔ ... ⇔ 29 ⇔ 30 ⇔ 12 ⇔ ... ⇔ 23 ⇔ No display.
(Available range: The range for the setting is 12 °C to 30 °C. The actual
range over which the temperature can be controlled, however, will vary
according to the type of the connected unit.)

8. After making the appropriate settings at Steps 5, 6 and 7, press the Filter

button 4 to lock in the values.

To clear the currently set values for the selected operation, press and quickly
release the Check (Clear) button 1 once.

* The displayed time setting will change to “—:—”, and the On/Off and

temperature settings will all disappear.
(To clear all weekly timer settings at once, hold down the Check (Clear)
button 0 for two seconds or more. The display will begin flashing, indi­cating that all settings have been cleared.)

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A9 78

7

Note:

˚C

˚C

SIMPLE

7

˚C

˚C

ONHr

AFTER

SIMPLE

7

Your new entries will be cancelled if you press the Mode (Return) button
before pressing the Filter

button

44

4.

44

If you have set two or more different operations for exactly the same time,
only the operation with the highest Operation No. will be carried out.

9. Repeat Steps 3 to 8 as necessary to fill as many of the available cells as

you wish.

10.Press the mode (Return) button 2 to return to the standard control screen

and complete the setting procedure.

11.To activate the timer, press the Timer On/Off button 9, so that the “Timer

Off” indication disappears from the screen.

Be sure that the “Timer Off”

indication is no longer displayed.

* If there are no timer settings, the “Timer Off” indication will flash on the

screen.

s How to View the Weekly Timer Settings

8

9

Timer Settings

SUN

TIMER

ON

OFF

˚C

WEEKLY

1

1. Be sure that the weekly timer indicator is visible on the screen (at 1).

2. Press the Timer Menu button B so that “Monitor” is indicated on the screen

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(at 8).

3. Press the Timer On/Off (Set Day) button 9 as necessary to select the day

you wish to view.

4. Press the

or Operation button (7 or 8) as necessary to change

the timer operation shown on the display (at 9).

* Each press will advance to the next timer operation, in order of time set-

ting.

5. To close the monitor and return to the standard control screen, press the

D

Mode (Return) button 2.

s To Turn Off the Weekly Timer

Press the Timer On/Off button 9 so that “Timer Off” appears at 0.

TIME SUN

F

0

˚C

˚C

WEEKLY

s To Turn On the Weekly Timer

Press the Timer On/Off button 9 so that the “Timer Off” indication (at 0) goes
dark.

E

0

TIME SUN

˚C

˚C

WEEKLY

3.6.2. Using the Simple Timer

■ You can set the simple timer in any of three ways.

• Star t time only: The air conditioner starts when the set time has elapsed.

INL

• Stop time only: The air conditioner stops when the set time has elapsed.

• Start & stop times: The air conditioner starts and stops at the respective

■ The simple timer (star t and stop) can be set only once within a 72-hour pe­riod.
The time setting is made in hour increments.

Notes:
*1. Weekly Timer/Simple Timer/Auto Off Timer cannot be used at the same

time.

*2. The simple timer will not operate when any of the following conditions is

in effect.
The timer is off; the system is in malfunction state; a test run is in progress;
the remote controller is undergoing self-check or remote controller check;
the user is in the process of selecting a function; the user is in the proc-

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ess of setting the timer; the system is under central control. (Under these
conditions, On/Off operation is prohibited.)

elapsed times.

s How to Set the Simple Timer

22

2

22

2

Timer Setting

4

ONHr

AFTER

SIMPLE

Action (On or Off)

3

* “— —” is displayed if there is

no setting.

1

1. Be sure that you are at a standard control screen, and that the simple timer

indicator is visible in the display (at 1).
When something other than the Simple Timer is displayed, set it to SIMPLE
TIMER using the function selection of remote controller (see Installation
Manual).

2. Press the Timer Menu button B, so that the “Set Up” appears on the screen

(at 2). (Note that each press of the button toggles the display between “Set
Up” and “Monitor”.)

3. Press the ON/OFF button 1 to display the current ON or OFF simple timer

setting. Press the button once to display the time remaining to ON, and
then again to display the time remaining to OFF. (The ON/OFF indication
appears at 3).

•“ON” timer: The air conditioner will star t operation when the specified
number of hours has elapsed.

•“OFF” timer: The air conditioner will stop operation when the specified
number of hours has elapsed.

4. With “ON” or “OFF” showing at 3: Press the appropriate Set Time button A

as necessary to set the hours to ON (if “ON” is displayed) or the hours to
OFF (if “OFF” is displayed) at 4.

• Available Range: 1 to 72 hours

5. To set both the ON and OFF times, repeat Steps 3 and 4.
* Note that ON and OFF times cannot be set to the same value.

6. To clear the current ON or OFF setting: Display the ON or OFF setting (see

step 3) and then press the Check (Clear) button 0 so that the time setting
clears to “—” at 4. (If you want to use only an ON setting or only an OFF
setting, be sure that the setting you do not wish to use is shown as “—”.)

7. After completing steps 3 to 6 above, press the Filter

the value.

Note:
Your new settings will be cancelled if you press the Mode (Return) button
before pressing the Filter

button

44

4.

44

8. Press the Mode (Return) button 2 to return to the standard control screen.

9. Press the Timer On/Off button 9 to start the timer countdown. When the

timer is running, the timer value is visible on the display.

timer value is visible and appropriate.

s Viewing the Current Simple Timer Settings

Timer Setting

5

6

TIMER ON

OFFHrAFTER

SIMPLE

1. Be sure that the simple timer indicator is visible on the screen (at 1).

2. Press the Timer Menu button B, so that the “Monitor” appears on the screen

(at 5).

• If the ON or OFF simple timer is running, the current timer value will

appear at 6.

• If ON and OFF values have both been set, the two values appear alter-

nately.

3. Press the Mode (Return) button 2 to close the monitor display and return

to the standard control screen.

s To Turn Off the Simple Timer...

Press the Timer On/Off button 9 so that the timer setting no longer appears on the
screen (at 7).

button 4 to lock in

Be sure that the

1

22

2

22

ONHr

ON/OFF

AFTER

OPERATION

SIMPLE

ON/OFF

CHECK

P

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

2A9

8

FILTER

CLEAR

s To Turn On the Simple Timer...

Press the Timer On/Off button 9 so that the timer setting becomes visible at 7.

1

B

TEST

4
0

AUTO OFF

7

Examples

If ON and OFF times have both been set at the simple timer, operation and display
are as indicated below.

Example 1:
Start the timer, with ON time set sooner than OFF time
ON Setting: 3 hours
OFF Setting: 7 hours

ONHr

AFTER

SIMPLE

At Timer Start

▲

OFFHrAFTER

˚C

˚C

SIMPLE

At 3 hours after

timer start

▲

At 7 hours after
timer start

SIMPLE

Display shows the tim­er’s ON setting (hours
remaining to ON).

Display changes to
show the timer’s OFF
setting (hours remain­ing to OFF). The time
displayed is OFF set­ting (7 hours) – ON
setting (3 hours) = 4
hours.

The air conditioner
goes off, and will re­main off until someone
restarts it.

Example 2:
Start the timer, with OFF time is sooner than ON time
ON Setting: 5 hours
OFF Setting: 2 hours

OFFHrAFTER

˚C

˚C

SIMPLE

At Timer Start

▲

AFTER

ONHr

SIMPLE

At 2 hours after

timer start

▲

˚C

˚C

SIMPLE

At 5 hours after
timer start

Display shows the tim­er’s OFF setting
(hours remaining to
OFF).

Display changes to
show the timer’s ON
setting (hours remain­ing to ON). The time
displayed is ON set­ting (5 hours) – OFF
setting (2 hours) = 3
hours.

The air conditioner
comes on, and will
continue to run until
someone turns it off.

When something other than the Auto Off Timer is displayed, set it to AUTO
OFF TIMER using the function selection of remote controller (see Installa­tion Manual).

2. Hold down the Timer Menu button B for 3 seconds, so that the “Set Up”

appears on the screen (at 2).
(Note that each press of the button toggles the display between “Set Up”
and “Monitor”.)

3. Press the appropriate Set Time button A as necessary to set the OFF time

(at 3).

4. Press the Filter

button 4 to lock in the setting.

Note:
Your entry will be cancelled if you press the Mode (Return) button

44

button

pressing the Filter

4.

44

22

2 before

22

5. Press the Mode (Return) button 2 to complete the setting procedure and

return to the standard control screen.

6. If the air conditioner is already running, the timer starts countdown immedi-

ately. Be sure to check that the timer setting appears correctly on the

display.

s Checking the Current Auto Off Timer Setting

Timer Setting

TIMER

AFTER

5

OFF

AUTO OFF

1

4

1. Be sure that the “Auto Off” is visible on the screen (at 1).

2. Hold down the Timer Menu button B for 3 seconds, so that “Monitor” is

indicated on the screen (at 4).

• The timer remaining to shutdown appears at 5.

3. To close the monitor and return to the standard control screen, press the

Mode (Return) button 2.

s To Turn Off the Auto Off Timer...

● Hold down the Timer On/Off button 9 for 3 seconds, so that “Timer Off” ap-

pears (at 6) and the timer value (at 7) disappears.

7

˚C

AUTO OFF

6

˚C

GBDF

3.6.3. Using the Auto Off Timer

■ This timer begins countdown when the air conditioner starts, and shuts the air
conditioner off when the set time has elapsed.

■ Available settings run from 30 minutes to 4 hours, in 30-minute intervals.

Notes:
*1. Weekly Timer/Simple Timer/Auto Off Timer cannot be used at the same

time.

*2. The Auto Off timer will not operate when any of the following conditions

is in effect.
The timer is off; the system is in malfunction state; a test run is in progress;
the remote controller is undergoing self-check or remote controller check;
the user is in the process of selecting a function; the user is in the proc­ess of setting the timer; the system is under central control. (Under these
conditions, On/Off operation is prohibited.)

AFTER OFF

OPERATION

Timer Setting

3

AUTO OFF

ON/OFF

FILTER

CHECK

CLEAR

B

TEST

4

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

2A9

s How to Set the Auto Off Timer

2

ON/OFF

CLOCK

● Alternatively, turn off the air conditioner itself. The timer value (at 7) will disap-

pear from the screen.

s To Turn On the Auto Off Timer...

● Hold down the Timer On/Off button 9 for 3 seconds. The “Timer Off “ indica-

tion disappears (at 6), and the timer setting comes on the display (at 7).

● Alternatively, turn on the air conditioner. The timer value will appear at 7.

7

AFTER OFF

˚C

AUTO OFF

6

˚C

E

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AFTER OFF

1. Be sure that you are at a standard control screen, and that the Auto Off

timer indicator is visible in the display (at 1).

AUTO OFF

1

9

3.7. Locking the remote controller buttons

(Operation function limit controller)

■ If you wish, you can lock the remote controller buttons. You can use the Func­tion Selection of remote controller to select which type of lock to use. (For
information about selecting the lock type, see Installation Manual).
Specifically, you can use either of the following two lock types.
1 Lock All Buttons:

Locks all of the buttons on the remote controller.

2 Lock All Except ON/OFF:

Locks all buttons other than the ON/OFF button.

Note:
The “Locked” indicator appears on the screen to indicate that buttons are
currently locked.

1

Lock Indicator

TIME SUN

˚C

TEMP.

MENU

GB

BACK DAY

PAR-21MAA

MONITOR/SET

CLOCK

ON/OFF

s How to Lock the Buttons

1. While holding down the Filter button 4, press and hold down the ON/OFF

D

button 1 for 2 seconds. The “Locked” indication appears on the screen (at

1), indicating that the lock is now engaged.

* If locking has been disabled in Function Selection of remote controller,

the screen will display the “Not Available” message when you press the
buttons as described above.

F

˚C

• If you press a locked button, the “Locked” indication (at 1) will blink on the

display.

E

˚C

s How to Unlock the Buttons

1. While holding down the Filter button 4, press and hold down the ON/OFF

button 1 for 2 seconds—so that the “Locked” indication disappears from
the screen (at 1).

INL

˚C

˚C

OPERATION

˚C

˚C

˚C

FUNCTION

ON/OFF

FILTER

CHECK

CLEAR

TEST

FUNCTION

FUNCTION

1

4

1

1

1

3.8.2. Flashing Mode Indicator

˚C

TEMP.

■ When flashes continuously
Displayed when another indoor unit connected to the outdoor unit is already
operating in a different operation mode.
Match with the operation mode of the other indoor unit.

■ When mode switched after display flashes
Displayed when operation mode is restricted for each season by central con­troller, etc.
Use another operation mode.

˚C

ON/OFF

3.8.3. Flashing “Filter”

˚C

˚C

TEMP.

FILTER

ON/OFF

■ Indicates that the filter needs cleaning.
Clean the filter.

■ When resetting “FILTER” display
When the [FILTER] button is pressed two times successively after cleaning the
filter, the display goes off and is reset.

3.8.4. Flashing Error Codes

ERROR CODE

ON/OFF

Indoor Unit's

Refrigerant

Address

If you have entered contact number to be called in the event of a problem, the screen
displays this number. (You can set this up under Function Selection of remote
controller. For information, refer to Installation Manual.)

Error Code

Indoor Unit No.

Alternating Display

● If the ON lamp and error code are both flashing: This means that the air condi­tioner is out of order and operation has been stopped (and cannot resume).
Take note of the indicated unit number and error code, then switch off the
power to the air conditioner and call your dealer or servicer.

ON lamp
(Flashing)

3.8. Other indications

3.8.1. Centrally Controlled

˚C

SW

TEMP.

● Displayed when operation is controlled by central controller, etc.
Restricted operations are shown below.

• ON/OFF (including timer operation)

• Operation mode

• Set temperature

P

Note:
May also be individually restricted.

˚C

10

ON/OFF

ERROR CODE

˚C

˚C

ON/OFF

Error Code

● If only the error code is flashing (while the ON lamp remains lit): Operation is
continuing, but there may be a problem with the system. In this case, you should
note down the error code and then call your dealer or servicer for advice.
* If you have entered contact number to be called in the event of a problem,

push the Check button to display it on the screen. (You can set this up under
Function Selection of remote controller. For information, refer to Installation
Manual)

When the Check button is pressed:

CALL:XXXX
XXX:XXX

ON/OFF

4. The smart way to use

Even minimal steps to care for your air conditioner can help make its use far
more effective in terms of air-conditioning effect, electricity charges, etc.

Set the right room temperature

• In cooling operation, a temperature difference of about 5 °C between indoors
and outdoors is optimum.

• If the room temperature is raised by 1 °C during air-cooling operation, about 10 %
electric power can be saved.

• Excessive cooling is bad for health. It also results in the waste of electric power.

Clean the filter thoroughly

• If the screen of the air filter becomes clogged, the airflow and air-conditioning
effect can be significantly reduced. Further, if the condition is left unattended,
failure can result. It is particularly important to clean the filter at the beginning
of the cooling and heating seasons. (When profuse dust and dirt have accu­mulated, clean the filter thoroughly.)

5. Caring for the machine

Always have filter maintenance performed by a service person.
Before care-taking, turn the power supply OFF.

Caution:

• Before you start cleaning, stop operation and turn OFF the power supply.
Remember that the fan is rotating inside at high speed, posing a serious
risk of injury.

• Filter must be installed in the return air to remove the dust of sucked-in
air. (The standard filter should normally be cleaned once a week, and the
long-life filter at the beginning of each season.)

How to clean

• Clear dust away lightly or clean it up with a vacuum cleaner. In the case of
severe staining, wash the filter in lukewarm water mixed with dissolved neutral
detergent or water, and then rinse off the detergent completely. After washing,
dry it and fix it back into place.

Caution:

• Do not dry the filter by exposing it to direct sunlight or warming it using
fire, etc. Doing so can result in the deformation of the filter.

• Washing it in hot water (more than 50 degree C) can also result in defor­mation.

Prevent intrusion of heat during air-cooling

• To prevent the intrusion of heat during cooling operation, provide a curtain or a
blind on the window to block out direct sunlight. Also, do not open the entrance
or exit except in cases of dire necessity.

Carry out ventilation sometimes

• Since the air periodically gets dirty in a room that is kept closed for a long time,
ventilation is sometimes necessary. When gas appliances are used together
with the air conditioner, special precautions must be taken. If the “LOSSNAY”
ventilation unit developed by our company is used, you can perform ventilation
with less waste. For details on this unit, consult with your dealer.

Caution:

Never pour water or flammable sprays onto the air conditioner. Cleaning using
these methods can result in the failure of the air conditioner, electric shock,
or fire.

Replacement of filter

[Fig. 5.0.1] (P.2)

A Air outlet B Air inlet
C Air filter D Air filter handle

(1) The air filter should be located at the air inlet (rear side of the unit).

(2) Lift the air filter handles and pull the filter towards you.

(3) If you are going to use an air inlet conduit, remove the air filter. In this case, an

air filter must be prepared locally and installed at the intake grille.

GBDF

E

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11

6. Troubleshooting

Before you call out a repair man, check the following table to see whether there is
a simple solution to your problem.

● Unit does not cool very well.

• Clean the filter. (Dust and debris that collects in the filter will decrease air­flow.)

• Check the temperature setting and adjust it if necessary.

• Increase the space surrounding the outdoor unit.

Is the air intake or air outlet blocked?

• Is a window or door open?

● There is a “swishing” noise that occurs from the unit when water flows.

• This sound is made when refrigerant inside of the unit is flowing or refilling.

● A ticking noise is heard from inside of the unit.

• This sound is made when internal par ts of the unit expand or contract when
the temperature changes.

● An odor is detected in the room.

• This is caused when the unit expels odors that have been absorbed from the
walls, carpets, furniture or clothing.

● A white mist is expelled from the indoor unit.

• This may occur just after the unit is turned on when a high level of humidity is
present in the room.

● Water or moisture is expelled from the outdoor unit.

GB

• This occurs to expel water or moisture that may have collected in the pipes
or around piping fixtures.

• This occurs to dispel water from the heat exchanger.

● The indicators of the remote controller do not light up when operated.

• Turn on the power switch. “

indicator is displayed in the remote controller.

●

D

• The start and stop or operation mode or set temperature functions of the
remote controller are not available when the

● The start and stop functions are not available just after restarting the
unit.

• Wait about three minutes (operation has stopped to prevent damage to the

air conditioner).

● Unit does not start immediately.

F

• Wait until the unit restarts automatically. The compressor may hesitate re-

suming because a three-minute resume prevention circuit is incorporated in
the outdoor unit for protection of the compressor.

” will be displayed.

indicator is lit.

● The unit started even though the start/stop button was not pushed.

• Is the timer on?
Press the start/stop button to stop the unit.

• Was a distant command sent from the remote controller?
Find out if the remote controller was used.

• Is the

• Is the automatic (cooling/heating) mode selected?

● The unit stopped even though the start/stop button was not pushed.

• Is the timer on?

• Was a distant command sent from the remote controller?

• Is the

● “PLEASE WAIT” is displayed in the remote controller.

• An automatic star tup test is being performed (will last for about two minutes).

● An error code is displayed in the remote controller.

• A self-diagnostic function is being performed to preserve the air conditioner.

● The fan in the indoor unit does not operate.

• Check the over-current relay on the fan motor to determine whether it has

indicator lit?

Find out if the remote controller was used.

Press the start/stop button to stop the unit.

Press the start/stop button to restart the unit.

Find out if the remote controller was used.

indicator lit?

Find out if the remote controller was used.

* Do not attempt to make repairs yourself. Turn the main switch off and

contact the dealer from whom you bought the air conditioner. Provide him
or her with the name of the unit and the information displayed in the re­mote controller.

been tripped.
If the over-current relay has been tripped, reset it after eliminating the cause
of the problem (e.g. motor lock).
To reset the over-current relay, open the control box and press the green
claw on bottom-right of the relay until a click is heard. Release the claw and
check that it returns to its original position.
Note that if it is pressed too hard it will not return to its original position.

E

If none of the above apply, turn the main switch off and contact the dealer from whom you bought the air-conditioner, telling him the model name and the nature of the
problem. Do not try to fix the unit yourself.

In any of the following cases, turn off the main power switch and contact your local dealer for service:

• The operation lamp (on the main unit) flashes.

• The switches do not work properly.

INL

• The circuit breaker trips frequently (or the fuse blows frequently).

• Water has accidentally been splashed into the unit.

• Water leaks from the unit.

• Something is accidentally dropped into the air-conditioner.

• An unusual noise is heard during operation.

The following do not indicate any malfunction:

Odours: smells such as tobacco or cosmetic odours may persist after they have been sucked into the unit.
Sound of liquid flowing inside indoor unit: this can occur during or after operation and is simply the sound of refrigerant being circulated inside the unit.
Ticking sound coming from indoor unit: this can occur when cooling has just begun or has just stopped. It is caused by the indoor unit shrinking or expanding slightly due to
the change in temperature.

NOTE: The refrigerant charged in the air conditioner is safe. Refrigerant normally does not leak, however, if refrigerant gas leaks indoors, and comes into contact

SW

with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.
Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out.

P

12

7. Installation and transferring works, and checking

Regarding place for installation

Consult with your dealer for details on installation and transferring the installation.

Caution:

Never install the air conditioner where there is a risk of leakage of flammable
gas.
If gas leaks and accumulates around the unit, fire can result.

Never install the air conditioner at the following place:

• where there is much machine oil

• near ocean and beach areas where there is much salt

• where humidity is high

• where there are hot springs nearby

• where there is much sulfureted gas

• where there is a high-frequency processing machinery (a high-frequency welder,
etc.)

• where acid solution is frequently used

• where special sprays are frequently used

• Install the indoor unit horizontally. Otherwise, water leakage can result.

• Take sufficient measures against noise when installing the air conditioners at
hospitals or communication-related businesses.

If the air conditioner is used in any of the above-mentioned environments, frequent
operational failure can be expected. It is advisable to avoid these types of installa­tion sites.
For further details, consult with your dealer.

Regarding electrical work

Caution:

• The electrical work must be undertaken by a person who is qualified as
an electric engineer according to local regulations and the instruction
given in the installation manual with the absolute use of exclusive cir­cuits. The use of other products with the power source can result in burnt­out beakers and fuses.

• Never connect the grounding wire to a gas pipe, water pipe, arrester, or
telephone grounding wire. For details, consult with your dealer.

• In some types of installation sites, the installation of an earth leakage
breaker is mandatory. For details, consult with your dealer.

Regarding transfer of installation

• When removing and reinstalling the air conditioner when you enlarge your
home, remodel, or move, consult with your dealer in advance to ascertain the
cost of the professional engineering work required for transferring the installa­tion.

Caution:

When moving or reinstalling the air conditioner, consult with your dealer.
Defective installation can result in electric shock, fire, etc.

Regarding noise

• In installing work, choose a place that can fully bear the weight of the air con­ditioner, and where noise and vibration can be reduced.

• Choose a place where cool or warm air and noise from the outdoor air outlet of
the air conditioner do not inconvenience the neighbours.

• If any alien object is placed near the outdoor air outlet of the air conditioner,
decreased performance and increased noise can result. Avoid placing any
obstacles adjacent to the air outlet.

• If the air conditioner produces any abnormal sound, consult with your dealer.

Maintenance and inspection

• If the air conditioner is used throughout several seasons, the insides can get
dirty, reducing the performance.

Depending upon the conditions of usage, foul odors can be generated and
drainage can deteriorate due to dust and dirt, etc.

GBDF

8. Specifications

Model name

Power supply

External static pressure

Airflow rate (Hi/Lo)

Dimension

Net weight

Notes: Refer to the product nameplate attached to the unit for the electrical specifications.

Rating conditions (cooling) Indoor: 27 °C DB, 19 °C WB Outdoor: 35 °C DB
Rating conditions (heating) Indoor: 20 °C DB Outdoor: 7 °C DB, 6 °C WB

Voltage V

Frequency Hz

Height mm

Width mm

Depth mm

Pa

3

m

/h

kg

PEA-RP170WGA

3600/2880

74

PEA-RP200WGA PEA-RP250WGA

3N ~ 380, 400, 415

50

150

4800/3840

465

1600

615

80

E

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13

Please be sure to put the contact address/telephone number on

this manual before handing it to the customer.

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

WT05223X02