Mitsubishi Electronics PKA-AHA, PKA-AHAL, PCA-AKA User Manual

Air-Conditioners
Indoor unit
PKA-A·HA/PKA-A·HAL PCA-A·KA
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.
Lea este manual de instrucciones hasta el fi 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 ........................................................................2
3. Screen Confi guration ...........................................................5
4. Setting the Day of the Week and Time .................................5
5. Operation .............................................................................5
6. Timer ....................................................................................7
1. Safety Precautions
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 author-
ity before connection to the system.
Warning:
• 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 fi 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.
7. Other Functions..................................................................10
8. Function Selection..............................................................11
9. Emergency Operation for Wireless Remote-controller.......15
10. Care and Cleaning .............................................................15
11. Trouble Shooting ................................................................15
12. Specifi cations .....................................................................17
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 fi 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 fi re may result.
• This air conditioner is NOT intended for use by children or infi 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.
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.
Disposing of the unit
When you need to dispose of the unit, consult your dealer.
2. Parts Names
Indoor Unit
PKA-A·HA
PKA-A·HAL Fan speed 3 speeds + Auto 4 speeds + Auto Vane Auto with swing Auto with swing Louver Manual Manual Filter Normal Long-life Filter cleaning indication 100 hr 2,500 hr
PKA-A·HA/PKA-A·HAL
Wall Mounted
Filter
Air intake
PCA-A·KA
Ceiling Suspended
Air outlet
PCA-A·KA
Louver
Louver
Air outlet
Vane
Vane
Air intake
Filter (Inside of Air intake)
2
2. Parts Names
Wired Remote-Controller
Display Section
For purposes of this explanation, all parts of the display are shown. During actual operation, only the relevant items will be displayed.
Identifi es the current operation
Shows the operating mode, etc. * Multi language display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the re­mote controller has been prohibited by a master controller.
“Timer is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Operation Section
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.
TIME SUN MON TUE WED THU FRI SAT TIMER AFTER
ERROR CODE
˚F˚C
Hr AFTER
˚F˚C
ONLY1Hr.
Up/Down Air Direction indi­cator
The indicator shows the direc­tion of the outcoming airfl ow.
“One Hour Only” indicator
Displayed if the airflow is set to low and downward during COOL or DRY mode. (Operation varies according to model.) The indicator goes off after 1 hour when the airflow direction also changes.
Room Temperature display
Shows the room temperature. The room temperature display range is 46-102 °F. The display blinks if the temperature is less than 46 °F or 102 °F or more.
Louver display
Indicates the action of the swing louver. Does not appear if the louver is station­ary.
(Power On indicator)
Indicates that the power is on.
ON OFF
FUNCTION
FILTER
WEEKLY
SIMPLE
AUTO OFF
“Sensor” indication
Displayed when the remote controller sensor is used.
“Locked” indicator
Indicates that remote controller but­tons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the lter.
Timer indicators
The indicator comes on if the corre­sponding timer is set.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in Ventilation mode.
Set Temperature buttons
ON/OFF button
Down
Up
Fan Speed button
Timer Menu button (Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button (Set Day button)
TEMP.
MENU
BACK DAY
MONITOR/SET
PAR-21MAA
CLOCK
ON/OFF
OPERATION
ON/OFF
FILTER
CHECK
CLEAR
TEST
Filter button (<Enter> button)
Test Run button
Check button (Clear button)
Airfl ow Up/Down button
Louver button
Operation button)
(
To return operation Opening the lid
Built-in temperature sensor
number
Ventilation button
Operation button)
(
To go to next opera-
tion number
Note:
“PLEASE WAIT” message
This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power fail-
ure.
“NOT AVAILABLE” message
This message is displayed if a button is pressed to operate a function that the indoor unit does not have. If a single remote controller is used to simultaneously operate multiple indoor units that are different models, this message will not be displayed if
any of the indoor units is equipped with the function.
3
2. Parts Names
Wireless Remote-Controller
Transmission area
Remote controller display
* For explanation purposes, all of the items
that appear in the display are shown.
* All items are displayed when the Reset
button is pressed.
ON/OFF button
Set Temperature buttons
Fan Speed button (Changes fan speed)
Airfl ow button (Changes up/down airfl ow direction)
Mode button (Changes operation mode)
Check button
Test Run button
COOL
DRY
AUTO
FA N
HEAT
MODEL SELECT
FA N
NOT AVAILABLE
RUN
SWING
START
AMPMSTOP
AMPM
°F °C
TEST
CHECK
When using the wireless remote controller, point it towards the receiver on the indoor unit. If the remote controller is operated within approximately 2 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 confi rm that the signal transmitted from the 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 remote controller carefully! Do not drop the remote controller or subject it to
strong shocks. In addition, do not get the remote controller wet or leave it in a location with high humidity.
To avoid misplacing the remote controller, install the holder included with the remote con-
troller on a wall and be sure to always place the remote controller in the holder after use.
Transmission indicator
Timer indicator
Operation areas
Timer Off button
Timer On button
Hour button
Minute button
Set Time button (Sets the time)
Louver button (Changes left/right airfl ow direction)
Reset button
Battery installation/replacement
1. Remove the top cover, insert 2 AAA batteries, and then install the top cover.
1
2
Top cover
2. Press the Reset button.
3
2 AAA batteries Insert the negative (–)
end of each battery first. Install the bat­teries in the correct directions (+, –)!
Outdoor unit
4
Power
Press the Reset but­ton with an object that has a narrow end.
Ref. Pipes Indoor-Outdoor
Connection wire
Earth
Service Panel
3. Screen Confi guration
Function Selection of remote controller
ADC
Standard Control Screens
OFF ON
BC
Timer Monitor Timer Setup
MON
TIMER
OFF
°F
WEEKLY
B
Set Day/Time
TIME SUN
°F
°F
SUN MON TUE WED THU FRI SAT
WEEKLY
4. Setting the Day of the Week and Time
Day of the Week
TIME SUN
°F
°F
TEMP.
MENU
BACK DAY
PAR-21MAA
ON/OFF
MONITOR/SET
CLOCK
OPERATION
ON/OFF
FILTER
CHECK
CLEAR
TEST
Note: The day and time will not appear if clock use has been disabled at Function Selection of remote controller.
& Time display
<Screen Types>
For details on setting the language for the remote controller display, refer to section 8. Function Selection. The initial language setting is English.
Function Selection of remote controller:
Set the functions and ranges available to the
remote controller (timer functions, operating
restrictions, etc.) Set Day/Time: Set the current day of the week or time. Standard Control Screens:
View and set the air conditioning system’s op-
erating status Timer Monitor: View the currently set timer (weekly timer, sim-
ple timer, or Auto Off timer) Timer Setup: Set the operation of any of the timers (weekly
timer, simple timer, or Auto Off timer).
<How to change the screen>
: Hold down both the Mode button and the Timer On/Off button for 2
A
seconds.
: Press the Timer Menu button.
B
: Press the Mode (Return) button.
C
: Press either of the Set Time buttons ( or ).
D
Day of the Week Setting
TIME SUN
Time Setting
1. Press the or Set Time button 1 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 1 as necessary to set the time. * As you hold the button down, the time (at 4) will increment fi rst in
minute intervals, then in 10-minute intervals, and then in 1-hour inter­vals.
4. After making the appropriate settings at Steps 2 and 3, press the Filter
button 4 to lock in the values.
5. Operation
°F
5.1. Turning ON/OFF
<To Start Operation>
Press the ON/OFF button 1.
• The ON lamp 1 and the display area come on.
°F
TEMP.
MENU
MONITOR/SET
BACK DAY
PAR-21MAA
CLOCK
ON/OFF
OPERATION
ON/OFF
FILTER
CHECK
CLEAR
  
 
2
5
6
COOL
˚F
3
7
TEST
1
3
2
5
6
7
<To Stop Operation>
Press the ON/OFF button 1 again.
• The ON lamp
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.
and the display area go dark.
1
5
5. Operation
5.2. Mode select
Press the operation mode ( ) button 2 and select the opera-
tion mode
.
2
(COOL) Cooling mode
(DRY) Drying mode
(FAN) Fan mode
(HEAT) Heating mode
(AUTO) Automatic (cooling/heating) mode
Ventillation mode
Only indicated on the following condition Wired remote controller used LOSSNAY connected
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.
Cooling mode
15 minutes (switches from cooling to heating )
15 minutes (switches from heating to cooling)
Set temperature +2°C, +4°F
Set temperature
Set temperature -2°C, -4°F
Because the room temperature is automatically adjusted in order to
maintain a fi xed effective temperature, cooling operation is performed a few degrees warmer and heating operation is performed a few de­grees cooler than the set room temperature once the temperature is reached (automatic energy-saving operation).
5.3. Temperature setting
To decrease the room temperature:
Press button 3 to set the desired temperature.
The selected temperature is displayed 3.
To increase the room temperature:
Press button 3 to set the desired temperature.
The selected temperature is displayed 3.
5.4. Fan speed setting
Press the Fan Speed button 5 as many times as necessary while the system is running.
• Each press changes the force. The currently selected speed is shown at 5.
• The change sequence, and the available settings, are as follows.
FAN SPEED Display
4-speed
+
Auto
3-speed
+
Auto
Speed 1 Speed 2 Speed 3 Speed 4
Speed 1 Speed 2 Speed 3 Auto
Auto
Note:
The number of available fan speeds depends on the type of unit
connected. Note also that some units do not provide an “Auto” setting.
In the following cases, the actual fan speed generated by the unit
will differ from the speed shown the remote controller display.
1. While the display is showing “STAND BY” or “DEFROST”.
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.
4. When the unit is in DRY mode.
5.5. Airfl ow direction setting
<To Change the Airfl ow’s Up/Down Direction>
With the unit running, press the Airfl ow Up/Down button 6 as necessary.
• Each press changes the direction. The current direction is shown at 6.
• The change sequence, and the available settings, are as follows.
Remote controller Display
Wired type
(PCA-KA) (PKA-HA)
Wireless type
*Note that during swing operation, the directional indication on the screen dose not change in sync with the directional vanes on the unit.
Note:
Available directions depend on the type of unit connected. Note
also that some units do not provide an “Auto” setting.
In the following cases, the actual air direction will differ from the
direction indicated on the remote controller display.
1. While the display is showing “STAND BY” or “DEFROST”.
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 tempera-
3. ture setting.
Swing
Swing
Auto 1 2
3
2
3
5
4
41
• Available temperature ranges are as follows: Cooling/Drying: 19 - 30 °C, 67 - 87 °F Heating: 17 - 28 °C, 63 - 83 °F Automatic: 19 - 28 °C, 67 - 83 °F
• The display 4 fl ashes either 8 °C - 39 °C, 46 °F - 102 °F to inform you if the room temperature is lower or higher than the displayed tempera­ture. (This display does not appear on the wireless remote controller.)
6
5. Operation
<[Manual] To Change the Airfl ow’s Left/Right Direction>
* The louver button 7 cannot be used.
• Stop the unit operation, hold the lever of the louver, and
adjust to the desired direction.
* Do not set to the inside direction when the unit is
in the cooling or drying mode because there is a risk of condensation and water dripping.
Caution:
When you operate the process above, be sure to take measures to avoid falls.
6. Timer
6.1. For Wired Remote-controller
You can use Function Selection of remote controller to select which of three types of timer to use: Off timer.
6.1.1. 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.
Note: *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 con-
ditions 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 self­check 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.
 
BACK DAY
PAR-21MAA
Weekly timer, 2 Simple timer, or 3 Auto
1
Day Setting
TEMP.
MENU
MONITOR/SET
SUN
ON/OFF
CLOCK
°F
OPERATION
ON
WEEKLY
ON/OFF
FILTER
CHECK
CLEAR
TEST

 
5.6. Ventillation
For LOSSNAY combination
5.6.1. For Wired Remote-controller
To run the ventilator together with the indoor unit:
Press the ON/OFF button 1.
The Vent indication appears on the screen (at 8). The ventilator will now automatically operate whenever the indoor unit is running.
To run the ventilator only when the indoor unit is off:
Press the Mode button 2 until appears on the display. This
will cause the ventilator to start.
To change the ventilator force:
Press the Ventilation button 8 as necessary.
• Each press toggles the setting as shown below.
(Low) (High)
Note:
With some model confi gurations, the fan on the indoor unit may
come on even when you set the ventilator to run independently.
<How to Set the Weekly Timer>
1. Be sure that you are at a standard control screen, and that the weekly timer indicator
2. Press the Timer Menu button screen (at between “Set Up” and “Monitor”.)
3. Press the Timer On/Off (Set Day) button advances the display at quence: “Sun Mon Tues Wed Thurs Fri Sat” “Sun” ... “Fri” “Sat” “Sun Mon Tues Wed Thurs Fri Sat”...
4. Press the 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.
• 8:30
No. 1
• ON
• 73 °F
• 10:00
No. 2
• OFF
...
No. 8
<Operation 1 settings for Sunday> Start the air conditioner at 8:30, with
the temperature set to 73 °F.
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.)
<Setting the Weekly Timer>
Shows the time set­ting
5. Press the appropriate Set Time button 1 as necessary to set the
desired time (at 5). * As you hold the button down, the time fi rst increments in minute
intervals, then in 10-minute intervals, and then in 1-hour intervals.
6. Press the ON/OFF button
OFF), at 6. * Each press changes the next setting, in the following sequence:
No display (no setting) “ON” “OFF”
is shown in the display.
1
). (Note that each press of the button toggles the display
2
, so that the “Set Up” appears on the
2
to set the day. Each press
to the next setting, in the following se-
3
9
or Operation button (7 or 8) as necessary to select
Sunday Monday Saturday
• 10:00
• OFF
SUN
°F
• 10:00
• OFF
• 10:00
• OFF
<Operation 2 settings for every day> Turn off the air conditioner at 10:00.
Shows the selected operation (ON or OFF)
* Does not appear if operation is not set.
ON
WEEKLY
Shows the temperature setting
* Does not appear if temperature is
not set.
to select the desired operation (ON or
1
7
6. Timer
7. Press the appropriate Set Temperature button 3 to set the desired temperature (at 7). * Each press changes the setting, in the following sequence: No
display (no setting) 75 77 ... 84 86 54 ...
No display.
73
(Available range: The range for the setting is 12 °C, 54 °F to 30 °C,
86 °F. 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 0 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 2 seconds or more. The display will begin blinking, indicating that all settings have been cleared.)
Note: Your new entries will be cancelled if you press the Mode (Return) but-
ton 2 before pressing the Filter button
If you have set 2 or more different operations for exactly the same time,
.
4
only the operation with the highest Operation No. will be carried out.
9. Repeat Steps 3 to 8 as necessary to fi ll 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 blink
on the screen.
6.1.2. Simple Timer
You can set the simple timer in any of three ways.
• Start time only: The air conditioner starts when the set time has elapsed.
• 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 elapsed times.
The simple timer (start and stop) can be set only once within a 72-hour
period.
The time setting is made in hour increments.
Note: *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 process of setting the timer; the system is under central control. (Under these conditions, On/Off operation is prohibited.)
ONHr
AFTER
TEMP.
MENU
MONITOR/SET
BACK DAY
PAR-21MAA
CLOCK
ON/OFF
OPERATION
SIMPLE
ON/OFF
FILTER
CHECK
CLEAR
TEST
<How to View the Weekly Timer Settings>
Timer Settings
TIMER
SUN
ON OFF
°F
WEEKLY
1.
Be sure that the weekly timer indicator is visible on the screen (at 1).
2. Press the Timer Menu button 2 so that “Monitor” is indicated on the screen (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 setting.
5. To close the monitor and return to the standard control screen, press the Mode (Return) button 2.
<To Turn Off the Weekly Timer>
Press the Timer On/Off button 9 so that “Timer Off” appears at .
10
TIME SUN
°F
°F
WEEKLY
<To Turn On the Weekly Timer>
Press the Timer On/Off button 9 so that the “Timer Off” indication (at ) goes dark.
10
TIME SUN
°F
°F
WEEKLY
<How to Set the Simple Timer>
Timer Setting
AFTER
ONHr
SIMPLE
Action (On or Off)
* “— —” is displayed if there is no
setting.
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
8.[4]–3 (3)) timer function setting.
2. Press the Timer Menu button 2, 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 start operation when the specifi ed number of
hours has elapsed.
• “OFF” timer: The air conditioner will stop operation when the specifi ed number of
hours has elapsed.
4. With “ON” or “OFF” showing at 3: Press the appropriate Set Time but­ton 1 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 “—”.)
8
6. Timer
7. After completing steps 3 to 6 above, press the Filter button 4 to lock in the value.
Note: Your new settings will be cancelled if you press the Mode (Return) button before pressing the Filter button
.
4
2
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. Be sure
that the timer value is visible and appropriate.
<Viewing the Current Simple Timer Settings>
Timer Setting
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 2, 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 2 values appear al-
ternately.
3. Press the Mode (Return) button 2 to close the monitor display and return to the standard control screen.
<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).
Example 2:
Start the timer, with OFF time is sooner than ON time ON Setting: 5 hours OFF Setting: 2 hours
OFFHrAFTER
°F
°F
ONHr
AFTER
°F
°F
At Timer Start
Display shows the timer’s OFF setting (hours
SIMPLE
remaining to OFF).
At 2 hours after timer start
Display changes to show the timer’s ON set­ting (hours remaining to ON).
SIMPLE
The time displayed is ON setting (5 hours) – OFF setting (2 hours) = 3 hours.
At 5 hours after timer start
The air conditioner comes on, and will con-
SIMPLE
tinue to run until someone turns it off.
6.1.3. 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 inter-
vals.
Note: *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.)
°F
°F
SIMPLE
<To Turn On the Simple Timer...>
Press the Timer On/Off button 9 so that the timer setting becomes visible at 7.
°F
ONHr
AFTER
°F
SIMPLE
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
OFFHrAFTER
°F
°F
At Timer Start
Display shows the timer’s ON setting (hours
SIMPLE
remaining to ON).
At 3 hours after timer start
Display changes to show the timer’s OFF set­ting (hours remaining to OFF).
SIMPLE
The time displayed is OFF setting (7 hours) – ON setting (3 hours) = 4 hours.
At 7 hours after timer start
The air conditioner goes off, and will remain
SIMPLE
off until someone restarts it.
AFTER OFF
OPERATION
AUTO OFF
ON/OFF
FILTER
CHECK
CLEAR
TEST
TEMP.
MENU
MONITOR/SET
BACK DAY
PAR-21MAA
CLOCK
ON/OFF
<How to Set the Auto Off Timer>
Timer Setting
AFTER OFF
AUTO 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).
When something other than the Auto Off Timer is displayed, set it to
AUTO OFF TIMER using the function selection of remote controller (see
8.[4]–3 (3)) timer function setting.
2. Hold down the Timer Menu button 2 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 1 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 pressing the Filter button
.
4
before
2
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 immediately. Be sure to check that the timer setting appears cor-
rectly on the display.
9
6. Timer
<Checking the Current Auto Off Timer Setting>
Timer Setting
TIMER AFTER
OFF
AUTO OFF
1. Be sure that the “Auto Off” is visible on the screen (at 1).
2. Hold down the Timer Menu button 2 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.
<To Turn Off the Auto Off Timer...>
Hold down the Timer On/Off button 9 for 3 seconds, so that “Timer
Off” appears (at 6) and the timer value (at 7) disappears.
°F
Alternatively, turn off the air conditioner itself. The timer value (at 7)
will disappear from the screen.
°F
AUTO OFF
6.2. For wireless remote controller
COOL

Press the or button (TIMER SET).
1
• Time can be set while the following symbol is blinking. OFF timer: A ON timer: A is blinking.
Use the and buttons to set the desired time.
2
Cancelling the timer.
3
To cancel the OFF timer, press the button. To cancel the ON timer, press the button.
is blinking.
AUTO OFF
<To Turn On the Auto Off Timer...>
Hold down the Timer On/Off button 9 for 3 seconds. The “Timer Off”
indication 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.
AFTER OFF
°F
°F
AUTO OFF
7. Other Functions
7.1. 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 section 8, item [4]–2 (1)).
Specifi cally, you can use either of the following 2 lock types.
Lock All Buttons:
1
Locks all of the buttons on the remote controller.
Lock All Except ON/OFF:
2
Locks all buttons other than the ON/OFF button.
Note: The “Locked” indicator appears on the screen to indicate that buttons are currently locked.
Lock Indicator
• It is possible to combine both OFF and ON timers.
• Pressing the 1 ON/OFF button of the remote controller during timer mode to stop the unit will cancel the timers.
• If the current time has not been set, the timer operation cannot be used.
<How to Lock the Buttons>
1. While holding down the Filter button 4, press and hold down the ON/ OFF 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 control-
ler, the screen will display the “Not Available” message when you press the buttons as described above.
°F
°F
FUNCTION
• If you press a locked button, the “Locked” indication (at 1) will blink
on the display.
°F
°F
FUNCTION
10
°F
TEMP.
MENU
BACK DAY
MONITOR/SET
PAR-21MAA
CLOCK
TIME SUN
ON/OFF
°F
OPERATION
FUNCTION
ON/OFF
FILTER
CHECK
CLEAR
TEST
<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).
°F
°F
7. Other Functions
7.2. Error Codes indication
ERROR CODE
ON lamp (Flashing)
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 section 8.)
Error Code
Alternating Display
ON/OFF
Indoor Unit No.
If the ON lamp and error code are both blinking: 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.
When the Check button is pressed:
ERROR CODE
°F
°F
ON/OFF
Error Code
CALL:XXXX XXX:XXX
ON/OFF
If only the error code is blinking (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 section 8.)
8. Function Selection
Function selection of remote controller
The setting of the following remote controller functions can be changed using the remote controller function selection mode. Change the setting when needed.
Item 1
1. Change Language (“CHANGE LAN-
GUAGE”)
2. Function limit (“FUNCTION SELEC-
TION”)
3. Mode selection (“MODE SELEC-
TION”)
4. Display change (“DISP MODE SET-
TING”)
Language setting to display
(1) Operation function limit setting (operation lock) (“LOCKING
FUNCTION”)
(2) Use of automatic mode setting (“SELECT AUTO MODE”)
(3) Temperature range limit setting (“LIMIT TEMP FUNCTION”)
(1) Remote controller main/sub setting (“CONTROLLER MAIN/
SUB”)
(2) Use of clock setting (“CLOCK”)
(3) Timer function setting (“WEEKLY TIMER”)
(4) Contact number setting for error situation (“CALL.”)
(1) Temperature display °C/°F setting (“TEMP MODE °C/°F”)
(2) Suction air temperature display setting (“ROOM TEMP DISP
SELECT”)
(3) Automatic cooling/heating display setting (“AUTO MODE
DISP C/H”)
Item 2
Item 3 (Setting content)
• Display in multiple languages is possible
• Setting the range of operation limit (operation lock)
• Setting the use or non-use of “automatic” operation mode
• Setting the temperature adjustable range (maximum, minimum)
• Selecting main or sub remote controller * When 2 remote controllers are connected to one group, one controller
must be set to sub.
• Setting the use or non-use of clock function
• Setting the timer type
• Contact number display in case of error
• Setting the telephone number
• Setting the temperature unit (°C or °F) to display
• Setting the use or non-use of the display of indoor (suction) air tempera­ture
• Setting the use or non-use of the display of “Cooling” or “Heating” dis­play during operation with automatic mode
11
8. Function Selection
[Function selection fl owchart]
Setting language (English)
Change Language
Function selection
Normal display (Display when the air conditioner is not running)
Hold down the button and press the button for 2 seconds.

Remote controller function selection mode
Item 2Item 1
English
Hold down the button and press the button for 2 seconds.
Press the operation mode button.
Press the TIMER MENU button.
Press the TIMER ON/OFF button.
Dot display
German
Spanish
Russian
Italian
Chinese
French
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
PAR-21MAA
OPERATION
ON/OFF
CHECK
CLEAR
FILTER
TEST

Japanese
Item 3
OFF
no1
no2
ON
OFF
OFF
Operation lock setting is not used. (Initial setting value)
Operation lock setting is except On/Off button.
Operation lock setting is all buttons.
The automatic mode is displayed when the operation mode is selected. (Initial setting value)
The automatic mode is not displayed when the operation mode is selected.
The temperature range limit is not active. (Initial setting value)
The temperature range can be changed on cooling/dry mode.
The temperature range can be changed on heating mode.
Mode selection
Display mode setting
The temperature range can be changed on automatic mode.
Automatic fi lter elevation panel up/down operation mode
Not necessary to set this mode. Refer to OPERATION MANUAL of
ON
OFF
Optional Parts (Panel) for details on operation.
Fixed airfl ow direction mode
Not necessary to set this mode. Refer to OPERATION MANUAL of indoor unit for details on operation.
The remote controller will be the main controller. (Initial setting value)
The remote controller will be the sub controller.
The clock function can be used. (Initial setting value)
The clock function can not be used.
Weekly timer can be used. (Initial setting value)
Auto off timer can be used.
Simple timer can be used.
Timer mode can not be used.
OFF
CALL-
˚F
˚C
ON
OFF
ON
OFF
The set contact numbers are not displayed in case of error. (Initial setting value)
The set contact numbers are displayed in case of error.
The temperature unit °F is used. (Initial setting value)
The temperature unit °C is used.
Room air temperature is displayed. (Initial setting value)
Room air temperature is not displayed.
One of “Automatic cooling” and “Automatic heating” is displayed under the automatic mode is running. (Initial setting value)
Only “Automatic” is displayed under the automatic mode.
12
8. Function Selection
[Detailed setting]
[4]–1. CHANGE LANGUAGE setting The language that appears on the dot display can be selected.
• Press the [ 1 English (GB), 2 German (D), 3 Spanish (E), 4 Russian (RU),
Italian (I), 6 Chinese (CH), 7 French (F), 8 Japanese (JP)
5
Refer to the dot display table.
[4]–2. Function limit
(1) Operation function limit setting (operation lock)
• To switch the setting, press the [ no1 : Operation lock setting is made on all buttons other
1
than the [ ON/OFF] button I.
no2 : Operation lock setting is made on all buttons.
2
OFF (Initial setting value): Operation lock setting is not made.
3
*
To make the operation lock setting valid on the normal screen, it is necessary to press buttons (Press and hold down the [FILTER] A and [ ON/OFF] I buttons at the same time for 2 seconds.) on
the normal screen after the above setting is made.
(2) Use of automatic mode setting When the remote controller is connected to the unit that has auto-
matic operation mode, the following settings can be made.
• To switch the setting, press the [ ON (Initial setting value):
1
The automatic mode is displayed when the operation mode is
selected.
OFF:
2
The automatic mode is not displayed when the operation
mode is selected.
(3) Temperature range limit setting After this setting is made, the temperature can be changed within
the set range.
• To switch the setting, press the [ ON/OFF] button D. LIMIT TEMP COOL MODE:
1
The temperature range can be changed on cooling/dry mode.
LIMIT TEMP HEAT MODE:
2
The temperature range can be changed on heating mode.
LIMIT TEMP AUTO MODE:
3
The temperature range can be changed on automatic mode.
OFF (initial setting): The temperature range limit is not active.
4
* When the setting, other than OFF, is made, the temperature
range limit setting on cooling, heating and automatic mode is made at the same time. However, the range cannot be limited when the set temperature range has not changed.
To increase or decrease the temperature, press the [ or ( )] button F.
• To switch the upper limit setting and the lower limit setting, press
the [ ] button H. The selected setting will fl ash and the tem- perature can be set.
• Set table range
Cooling/Dry mode: Lower limit: 19°C ~ 30°C, 67°F ~ 87°F Upper limit: 30°C ~ 19°C, 87°F ~ 67°F Heating mode: Lower limit: 17°C ~ 28°C, 63°F ~ 83°F Upper limit: 28°C ~ 17°C, 83°F ~ 63°F Automatic mode: Lower limit: 19°C ~ 28°C, 67°F ~ 83°F Upper limit: 28°C ~ 19°C, 83°F ~ 67°F
MENU] button G to change the language.
ON/OFF] button D.
ON/OFF] button D.
TEMP. ( )
[4]–3. Mode selection setting
(1) Remote controller main/sub setting
• To switch the setting, press the [ ON/OFF] button D. Main: The controller will be the main controller.
1
Sub: The controller will be the sub controller.
2
(2) Use of clock setting
• To switch the setting, press the [ ON/OFF] button D. ON: The clock function can be used.
1
OFF: The clock function cannot be used.
2
(3) Timer function setting
• To switch the setting, press the [ ON/OFF] button D (Choose
one of the followings.).
WEEKLY TIMER (initial setting value):
1
The weekly timer can be used.
AUTO OFF TIMER:
2
The auto off timer can be used.
SIMPLE TIMER:
3
The simple timer can be used.
TIMER MODE OFF:
4
The timer mode cannot be used.
* When the use of clock setting is OFF, the “WEEKLY TIMER” can-
not be used.
(4) Contact number setting for error situation
• To switch the setting, press the [ ON/OFF] button D. CALL OFF:
1
The set contact numbers are not displayed in case of error.
CALL **** *** ****:
2
The set contact numbers are displayed in case of error. CALL_: The contact number can be set when the display is as shown
on the left.
• Setting the contact numbers
To set the contact numbers, follow the following procedures. Move the blinking cursor to set numbers. Press the [
( ) and ( )] button F to move the cursor to the right (left). Press the [ CLOCK ( ) and ( )] button C to set the num­bers.
[4]–4. Display change setting
(1) Temperature display °C/°F setting
• To switch the setting, press the [ ON/OFF] button D. °C: The temperature unit °C is used.
1
°F: The temperature unit °F is used.
2
(2) Suction air temperature display setting
• To switch the setting, press the [ ON/OFF] button D. ON: The suction air temperature is displayed.
1
OFF: The suction air temperature is not displayed.
2
(3) Automatic cooling/heating display setting
• To switch the setting, press the [ ON/OFF] button D. ON:
1
One of “Automatic cooling” and “Automatic heating” is dis-
played under the automatic mode is running.
OFF:
2
Only “Automatic” is displayed under the automatic mode.
TEMP.
13
8. Function Selection
[Dot display table]
Selecting language
Waiting for start-up
Operation mode Cool
Dry
Heat
Auto
Auto (Cool)
Auto (Heat)
Fan
Ventilation
Stand by (Hot adjust) Defrost
Set temperature
Fan speed
Not use button
Check (Error)
Test run
Self check
Unit function selection
Setting of ventilation
English German Spanish Russian Italian Chinese French Japanese
Selecting language
CHANGE LANGUAGE
Function selection
Operation function limit setting
Use of automatic mode setting
Temperature range limit setting
Limit temperature cooling/day mode Limit temperature heating mode
Limit temperature auto mode
Mode selection
Remote controller setting MAIN
Remote controller setting SUB
Use of clock setting
Setting the day of the week and time Timer set
Timer monitor
Weekly timer
Timer mode off
Auto off timer
Simple timer
Contact number setting of error situation Display change
Temperature display °C/°F setting
Room air temperature display set­ting Automatic cooling/heating display setting
English German Spanish Russian Italian Chinese French Japanese
14
9. Emergency Operation for Wireless Remote-controller


Fig. 9-1
(For PKA-A·HA / PKA-A·HAL)
E.O. SW
 
Fig. 9-2
When the remote controller cannot be used
When the batteries of the remote controller run out or the remote control­ler malfunctions, the emergency operation can be done using the emer­gency buttons.
[Fig.9-1] A DEFROST/STAND BY lamp B Operation lamp C Emergency operation switch (heating) D Emergency operation switch (cooling) E Receiver
Starting operation
• To operate the cooling mode, press the seconds.
• To operate the heating mode, press the button C for more than 2 seconds.
Stopping operation
• To stop operation, press the
than 2 seconds.
[Fig.9-2]
A DEFROST/STAND BY lamp (Orange)
C Emergency operation switch (cooling/heating) D Receiver
• Each press of the emergency operation switch will toggle the operation
mode.
• Check “COOL/HEAT” with the operation monitor display. (The orange
Note:
• Details of emergency mode are as shown below.
Operation mode COOL HEAT Set temperature 24°C, 75°F 24°C, 75°F Fan speed High High Airfl ow direction Horizontal Downward 4 (5)
B Operation lamp (Green)
A follows this monitor display for 5 seconds after pressing the
lamp emergency operation switch.)
[Heat pump type]
Cooling Heating Stop
Operation Monitor Display
GREEN
STOP
COOL
HEAT
: Turning off : Lighting
ORANGE
●○
button D or the button C for more
The orange lamp follows the switch operation as indicated at the left for 5 seconds, and then it will return to the normal display.
button D for more than 2
[Cooling only type]
Cooling Stop
10. Care and Cleaning
°F
°F
TEMP.
Indicates that the fi lter needs cleaning.
Ask authorized people to clean the fi lter.
When resetting “FILTER” display
When the [FILTER] button is pressed 2 times successively after clean-
ing the fi lter, the display goes off and is reset.
FILTER
ON/OFF
11. Trouble Shooting
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.
During heating mode, the air conditioner stops before the set room tem­perature is reached.
Note:
When 2 or more different types of indoor unit are controlled, the cleaning
period differs with the type of fi lter. When the master unit cleaning period arrives, “FILTER” is displayed. When the fi lter display goes off, the cumu- lative time is reset. “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 fi lter accord- ingly. The fi lter cleaning period cumulative time differs with the model.
This indication is not available for wireless remote controller.
Clean the fi lter. (Airfl ow is reduced when the fi 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 suffi ciently warmed
up.
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.
15
11. Trouble Shooting
Having trouble? Here is the solution. (Unit is operating normally.)
Airfl ow direction changes during operation or airfl ow direction cannot be set.
When the airfl ow direction is changed, the vanes always move up and down past the set position before fi nally stopping at the position.
A fl 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 remote controller display.■ “ ” appears in the remote controller display.
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.
Air conditioner stops without the ON/OFF button being pressed.
Remote controller timer operation cannot be set.
“PLEASE WAIT” appears in the remote controller display.
An error code appears in the remote controller display.
Draining water or motor rotation sound is heard.
Noise is louder than specifi cations.
Nothing appears in the wireless remote controller display, the display is faint, or signals are not received by the indoor unit unless the remote controller is close.
The operation lamp near the receiver for the wireless remote controller on the indoor unit is blinking.
During cooling mode, the vanes automatically move to the horizontal
(down) position after 1 hour when the down (horizontal) airfl ow direc- tion is selected. This is to prevent water from forming and dripping from the vanes.
During heating mode, the vanes automatically move to the horizontal
airfl ow direction when the airfl ow temperature is low or during defrost- ing mode.
When the airfl ow direction is changed, the vanes move to the set po-
sition after detecting the base position.
These sounds can be heard when refrigerant is fl owing in the air con-
ditioner or when the refrigerant fl ow is changing.
These sounds can be heard when parts rub against each due to ex-
pansion 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 airfl 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 ex-
changer.
During defrosting mode, water on the heat exchanger evaporates and
water vapor may be emitted. Turn on the power switch. “ ” will appear in the remote controller display.
During central control, “ ” appears in the remote controller display
and air conditioner operation cannot be started or stopped using the 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 remote controller?
Consult the concerned people who control the air conditioner.
Does “
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 remote controller?
Consult the concerned people who control the air conditioner.
Does “
Consult the concerned people who control the air conditioner.
Are timer settings invalid?
If the timer can be set,
the remote controller display.
The initial settings are being performed. Wait approximately 3 min-
utes.
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.
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 specifi cation, which was measured in an echo-free room.
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.
” appear in the remote controller display?
” appear in the remote controller display?
, , or appears in
High sound­absorbing rooms
Location examples
Noise levels 3 to 7 dB 6 to 10 dB 9 to 13 dB
Broadcasting studio, music room, etc.
Normal rooms Reception
room, hotel lobby, etc.
Low sound-ab­sorbing rooms
Offi ce, hotel room
16
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