Mitsubishi Electronics Plh 2 User Manual

Air-Conditioners  
PLH-2, 2.5KKC  
FOR USER  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
E OPERATION MANUAL  
For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.  
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1. Safety Precautions  
1.1. Installation  
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.  
1.1. Installation  
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.  
3
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1. Safety Precautions  
1.1. Installation  
5) Power line, fuse or circuit breaker  
Warning:  
Make sure that the unit is powered by a dedicated line. Other ap-  
pliances connected to the same line could cause an overload.  
Make sure that there is a main power switch.  
Be sure to adhere to the units voltage and fuse or circuit breaker  
ratings. Never use a piece of wire or a fuse with a higher rating  
than the one specified.  
A
B
A
Fuse or circuit breaker  
Main power switch  
B
6) Grounding  
Caution:  
The unit must be properly grounded. Never connect the ground-  
ing 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 units ground terminal and the  
grounding electrode.  
C
C
Grounding electrode  
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 dam-  
age the remote controller and cause malfunction.  
Never block or cover the indoor or outdoor units intakes or out-  
lets. Tall items of furniture underneath the indoor unit, or bulky  
items such as large boxes placed close to the outdoor unit will  
reduce the units 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.  
4
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1. Safety Precautions  
1.2. During operation  
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 rotat-  
ing, hot or high-voltage parts.  
Never insert fingers, sticks etc. into the intakes or outlets, other-  
wise injury may result, since the fan inside the unit rotates at  
high speed. Exercise 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.  
Do not over-cool. The most suitable inside temperature is one  
that is within 5°C of the outside temperature.  
Do not leave handicapped people or infants sitting or standing in  
the path of the airflow from the air-conditioner.This could cause  
health problems.  
Caution:  
Do not direct the airflow at plants or caged pets.  
Ventilate the room frequently. If the unit is operated continuously  
in a closed room for a long period of time, the air will become  
stale.  
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 re-  
frigerant into the atmosphere also damages the environment.  
5
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2. Introduction  
3. Components  
This air-conditioner unit is designed for maximum efficiency and ease of  
use. You can use it to cool, heat or dehumidify a room by making the  
appropriate settings on the wall-mounted remote controller.Once you have  
made your settings, operating the unit is usually a matter of simply press-  
ing the POWER ON/OFF button.  
The automatic cooling/heating mode allows setting of an optimum room  
temperature to which the air conditioner automatically adjust the room  
temperature.  
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.  
A
Indoor unit  
B
Remote controller  
A
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
B
3.1. Indoor unit and remote controller  
The indoor unit is mounted into the ceiling of your room and puts out air  
(cool, warm or dry) according to the settings you make using the remote  
controller mounted on the wall.  
E
A
Air intake: Draws air in a room.  
B
Horizontal air outlet: To be automatically set in the horizontal blowing posi-  
tion in either COOL or DRY mode operation.  
C
D
Downward air outlet  
Automated vane: Helps circulate air upward and downward or adjusts air-  
flow direction.  
F
E
F
G
Air filter  
Decorative panel  
Remote controller  
D
C
B
A
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
G
6
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3. Components  
4. Operation  
3.2. Outdoor unit  
The outdoor unit takes in and feeds outside air to the indoor unit and  
exhausts heated air in the cooling or dehumidifying mode, or cool air in  
the heating mode.  
A
A Air outlet  
B Air intake  
B
PUH-2KA  
A
B
PUH-2.5KA  
4.1. Operation modes  
Cooling  
The air conditioner works to cool the room to the selected temperature.  
The fan blows air continuously at the selected speed.  
Drying (dehumidifying) : Disabled in the heat-  
ing mode  
The drying mode efficiently reduces the humidity in the room so that the  
room temperature is not lowered excessively. When the selected room  
temperature is reached in the Low setting, the airflow will stop for ten  
minutes and then will resume for three minutes to keep the humidity low.  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
Heating  
NOT AVAILABLE  
The air conditioner works to heat the room to the selected tempera-  
ture.  
CLOCKON OFF  
FILTER  
CHECK  
When selecting the heating mode, a desired room temperature must  
be set to avoid any cool air. The fan will gradually increase the airflow  
delivery up to a selected rate.  
When the room temperature reaches the selected temperature and  
the compressor stops, the fan will deliver a gentle airflow.  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
Automatic (cooling / heating)  
The air conditioner automatically goes into the cooling or heating mode to  
keep the room at the selected temperature.  
7
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4. Operation  
4.2. Switching the unit on/off  
s Before pressing the ON/OFF button:  
Check to see if the power supply is on.  
The power supply should not be turned off while the air conditioner is  
in use. This can cause the unit to break down.  
1 Press the ON/OFF button.  
A
The ON indicator should light up.  
ON/OFF  
A
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
Note:  
FILTER  
˚C  
CHECK  
CLOCK  
1
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 compo-  
nents from being damaged.  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
If the operation stops due to a power failure, the unit will not au-  
tomatically restart until the power has been restored. Press the  
ON/OFF button to restart.  
CLOCKON OFF  
FILTER  
CHECK  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
4.3. Cooling  
1 If the unit is off, press the ON/OFF button to turn it on.  
A
The ON indicator should light up.  
2 Press the operation mode  
cooling mode  
button and select the  
.
B
should be displayed.  
TEMP.  
3 If necessary, press  
button to set the desired temperature.  
See page 10 for details.  
ON/OFF  
A
4 If necessary, press  
button to select a desired rate.  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
See page 13 for details.  
FILTER  
˚C  
CHECK  
B
CLOCK  
CHECK MODE  
TEST RUN  
1
5 If necessary, press  
air is blowing.  
to specify the vertical angle at which the  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
See page 14 for details.  
6 If necessary, press  
button to set the timer.  
See page 11 for details.  
CLOCKON OFF  
FILTER  
CHECK  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
2 6 3  
4 5  
8
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4. Operation  
4.4. Drying (dehumidifying)  
1 If the unit is off, press the ON/OFF button to turn it on.  
A The ON indicator should light up.  
2 Press the operation mode  
drying mode  
button and select the  
.
B
should be displayed.  
TEMP.  
3 If necessary, press  
button to set the desired temperature.  
See page 10 for details.  
ON/OFF  
A
4 If necessary, press  
air is blowing.  
to specify the vertical angle at which the  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
B
CLOCK  
See page 14 for details.  
CHECK MODE  
1
TEST RUN  
STAND BY  
DEFROST  
˚C  
5 If necessary, press  
button to set the timer setting.  
NOT AVAILABLE  
See page 11 for details.  
CLOCKON OFF  
Note:  
FILTER  
CHECK  
When the room temperature is lower than 18°C, the drying mode  
2
3
cannot be set.  
This reduces the operation level of the indoor fan.  
See page 13 for details.  
There may be times when the airflow volume does not match the  
display on the remote control unit.  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
5
4
4.5. Heating  
1 If the unit is off, press the ON/OFF button to turn it on  
A The ON indicator should light up.  
2 Press the operation mode  
heating mode  
button and select the  
B
.
B
should be displayed.  
TEMP.  
3 If necessary, press  
button to set the desired temperature.  
See page 10 for details.  
ON/OFF  
A
4 If necessary, press  
button to select a desired rate.  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
See page 13 for details.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
1
5 If necessary, press  
air is blowing.  
to specify the vertical angle at which the  
C
D
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
See page 14 for details.  
6 If necessary, press  
button to set the timer.  
CLOCKON OFF  
See page 11 for details.  
FILTER  
CHECK  
2
3
The fan speed may differ from the set speed at the start of the heating  
mode, during the defrosting mode, or after shutdown of the heating mode.  
C STAND BYis displayed from the moment heating begins until warm air is  
TEMP. TIMER SET  
TEST RUN  
blown out.  
REMOTE CONTROLLER  
PAR-JH240KA  
D DEFROSTis displayed during defrosting.  
6
4 5  
9
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4. Operation  
4.6. Automatic (cooling / heating)  
The AUTO mode starts with cooling or heating depending on the current  
room temperature, higher or lower, than a selected temperature value  
accordingly.  
1 If the unit is off, press the ON/OFF button to turn it on.  
A
The ON indicator should light up.  
2 Press the operation mode  
automatic mode  
button to select the  
.
ON/OFF  
A
B
should be displayed.  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
TEMP.  
3 If necessary, press  
button to set the desired temperature.  
˚C  
CHECK  
CLOCK  
CHECK MODE  
1
See page 10 for details.  
B
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
4 If necessary, press  
button to select a desired rate.  
See page 13 for details.  
5 If necessary, press  
air is blowing.  
to specify the vertical angle at which the  
CLOCKON OFF  
FILTER  
CHECK  
See page 14 for details.  
2
3
6 If necessary, press  
button to set the timer.  
See page 11 for details.  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
6
4 5  
TEMP.  
4.7. Selecting a temperature  
s To decrease the room temperature:  
TEMP.  
1 Press  
button to set the desired temperature.  
A
The selected temperature is displayed.  
A
Each time you press the button, the temperature value decreases by  
1°C.  
s To increase the room temperature:  
ON/OFF  
TEMP.  
1 Press  
button to set the desired temperature.  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
A
The selected temperature is displayed.  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
Each time you press the button, the temperature value increases by  
1°C.  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
Available temperature ranges are as follows:  
CLOCKON OFF  
FILTER  
CHECK  
Cooling & Drying:  
Heating:  
Automatic:  
19 - 30°C  
17 - 28°C  
19 - 28°C  
Circulation:  
(Not available)  
TEMP. TIMER SET  
TEST RUN  
1
REMOTE CONTROLLER  
PAR-JH240KA  
10  
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4. Operation  
CLOCK ON  
OFF  
4.8. Using the timer  
s Available Timer-Interlocked Operation Modes  
1. AUTO START/STOP: Allows both start and shutdown to be interlocked  
with the timer.  
A
2. AUTO START: Allows automatic start in response to the timer setting  
and shutdown to be proceeded by manually pressing the ON/OFF but-  
ton.  
3. AUTO STOP: Allows the start of the operation to be manually invoked  
by pressing the ON/OFF button and automatic shutdown based on the  
timer setting.  
ON/OFF  
CENTRALLY CONTROLLED  
1Hr.  
ON OFF  
FILTER  
˚C  
CHECK  
CLOCK  
s Timer-interlocked operation is available only once for both start  
CHECK MODE  
and shutdown in 24 hours.  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
s While A  
is displayed, setting and changing of time for timer-  
interlocked operation is disabled.  
1 In this case, press button once to turn off the A  
display  
CLOCKON OFF  
FILTER  
CHECK  
on the remote controller. This is referred to asTIMER OFF opera-  
tion.  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
1
CLOCK ON  
OFF  
4.8. Using the timer  
1) Set the current time  
CLOCK ON  
OFF  
1 Press  
Each time you press  
troller cyclically changes as follows.  
button to display the CLOCKB.  
CLOCK ON OFF  
B A  
button, the display on the remote con-  
ON  
OFF  
Remote  
controller display A  
CLOCK →  
No Display  
CLOCK  
CLOCK  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
2 Each time you press  
button, the time increases in incre-  
TIMER SET  
CHECK  
TIMER SET  
CLOCK  
CHECK MODE  
TEST RUN  
ments of one minute. Each time you press  
decreases in increments of one minute .  
button, the time  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
Press and hold the button to rapidly change the time.  
The time changes in increments of one minute ten minutes in  
units of hour; in this order.  
CLOCKON OFF  
FILTER  
CHECK  
Approximately ten seconds after pressing the button, the display on  
the remote controller will turn off.  
1
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
2
11  
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4. Operation  
CLOCK ON  
OFF  
4.8. Using the timer  
2) Set the time to start the unit as follows  
ON  
CLOCK ON  
OFF  
1 Press  
button to display B  
.
ABC  
TIMER SET  
2 Press  
button to set the time that you want the unit to start.  
The start time is displayed at A.  
3) Set the time to stop the unit as follows  
ON/OFF  
OFF  
CLOCK ON  
OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
1 Press  
button to display C  
.
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TIMER SET  
2 Press  
button to set the time that you want the unit to stop.  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
The stop time is displayed at A.  
4) Changing the set times  
CLOCKON OFF  
FILTER  
CHECK  
CLOCK ON  
OFF  
1 Press  
button to display the time (CURRENT, START,  
1
STOP) you want to change.  
TIMER SET  
2 Press  
button to set the desired time.  
TEMP. TIMER SET  
TEST RUN  
When change is made to either one of a pair, e.g., AUTO START or  
REMOTE CONTROLLER  
PAR-JH240KA  
AUTO STOP, set the time you need not to change to  
display is available following 23:50.  
. This  
2
CLOCK ON  
OFF  
4.8. Using the timer  
5) AUTO START and AUTO STOP operation  
CLOCK ON  
OFF  
1 Press  
button to make the following checks.  
Check that the current time is correct.  
Check that the automatic start time is correct.  
Check that the automatic shutdown time is correct.  
A
For selection or changing of time, see the previous page (page 11).  
The next operation time is displayed after approximately 10 seconds.  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
3 Press  
Each time you press  
with relative displays on the remote controller.  
button to display A  
on the remote controller.  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
button, available options change as follows  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
Remote controller display  
Available setting  
A  
Timer-interlocked operation  
CLOCKON OFF  
FILTER  
CHECK  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
3
1
12  
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4. Operation  
CLOCK ON  
OFF  
4.8. Using the timer  
6) AUTO START Operation  
CLOCK ON  
OFF  
1 Press  
button to make the following checks.  
Check that the current time is correct.  
Check that the automatic start time is correct.  
Check that the automatic shutdown time is identical to the dis-  
CD  
play A  
.
For the selection of the time, see the previous page (page 11).  
ON/OFF  
ON  
3 Press  
button once to display C  
on the remote controller.  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
CHECK MODE  
7) AUTO STOP Operation  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
CLOCK ON  
OFF  
A
1 Press  
button to make the following checks.  
Check that the current time is correct.  
Check that the automatic shutdown time is correct.  
Check that the automatic start time is identical to the display A  
CLOCKON OFF  
FILTER  
CHECK  
.
For the selection of the time, see the previous page (page 11).  
OFF  
TEMP. TIMER SET  
TEST RUN  
3 Press  
button to display D  
on the remote controller.  
REMOTE CONTROLLER  
PAR-JH240KA  
3
1
4.9. Selecting a fan speed  
1 Press  
button to select a desired fan speed.  
Each time you press the button, available options change with the  
display Aon the remote controller, as shown below.  
A
Display  
Available  
Option (Fan Speed Switch)  
Low  
-
High  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
˚C  
CHECK  
CLOCK  
In the drying mode  
In the heating mode  
, the selection of the fan speed is disabled.  
, the indoor fan continues running for approxi-  
CHECK MODE  
TEST RUN  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
mately one minute to discharge any residual heat from the electric  
heater; even after the operation has shut down.  
CLOCKON OFF  
FILTER  
CHECK  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
1
13  
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4. Operation  
4.10. Adjusting vertical airflow direction  
The vertical air vane helps select the vertical direction of the airflow.  
A
B
C
D
E
1 Press  
button to select the vertical airflow direction.  
Each time you press the button, the option changes are displayed on  
the remote controller, as shown below.  
A Swing  
B Horizontal airflow 30°  
F
C Downward airflow at an angle of 45°  
D Downward airflow at an angle of 55°  
E Downward airflow at an angle of 70°  
ON/OFF  
Immediately after the power-on sequence, the unit is automatically  
provided with the initial settings listed below.  
CENTRALLY CONTROLLED  
1Hr.  
FILTER  
˚C  
CHECK  
In the cooling/drying modes: Horizontal airflow  
CHECK MODE  
TEST RUN  
In the heating mode:  
Downward airflow (70°)  
STAND BY  
DEFROST  
˚C  
NOT AVAILABLE  
When you have selected gentle or cooling mode, or you have entered  
the drying mode,the available options change in the following order :  
ABDEA  
CLOCKON OFF  
FILTER  
CHECK  
One hour after you have selected D or E, the airflow automatically  
changes to Aand the display F1HRappears.  
Do not use Dor Etoo often with the Low airflow option in the cooling  
and drying modes or condensation can occur.  
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
1
4.11. Vertical airflow adjustment  
Setting this to Swingmoves the automated vane back and forth within  
the swing range, so that the air is directed upwards and downwards.  
In the SWING mode, the remote controller displays a moving arrow as  
shown in the diagram to indicate the swinging automated vane.  
The arrow motion on the remote controller display and the actual auto-  
mated vane movement do not match with each other.  
In the COOL or FAN mode operation, the vane is set in the fluctuating’  
mode, varying airflow rate automatically.  
When you set OFF the LOUVER switch, the automated vane will return to  
the position before the SWING mode has been selected.  
When you toggle the MODE SELECT buttons between COOL, DRY and  
FAN with the LOUVER switch set OFF, the airflow is set to approx. 30  
degrees-horizontal blowing in the COOL or electronics DRY mode while  
to approx. 70 degrees-downward blowing in the FAN mode.  
30˚  
A
A
B
C
Horizontal air outlet  
Downward air outlet  
B
Swing range <30 degrees to 70 degrees>  
C
70˚  
14  
E
E
5. Tips for best results  
6. Care and cleaning  
Keep the filters clean  
Dirty or clogged filters reduce the flow of air, making the unit less efficient.  
Very dirty filters may even cause damage to the unit. Remove and clean  
the filters at least once a week (more often, in very dusty locations). Using  
a vacuum cleaner is an ideal way to clean the filters.  
Let fresh air into the room from time to time  
Open the windows and ventilate the room now and then, otherwise the  
room will become musty.  
Eliminate heat sources  
When cooling the room, draw the curtains to keep out direct sunlight. Keep  
doors and windows fully closed, and avoid opening doors more often than  
necessary.  
Do not over-cool  
The air-conditioner works most efficiently when cooling the room to a tem-  
perature within 5˚C of the outdoor temperature.  
In COOL mode, for every 1˚C you increase the desired temperature set-  
ting, you will save about 10% on electricity costs.  
I PLP-2.5KC  
Caution:  
Always turn off the power, first on the remote controller and then  
the main switch, before cleaning or servicing the unit.  
When installing or removing the filter or front panel, do not stand  
on an unsteady surface.You may fall and injure yourself. Be also  
careful not to let dust fall into your eyes.  
B
A
6.1. Cleaning the filters and the indoor unit  
C
Dirty or clogged filters block the airflow and reduce efficiency. Very dirty  
filters can damage the air-conditioner itself.  
Filter removal  
I PLP-2.5KC  
1 Pull the knob on the intake grille in the direction indicated by the  
arrow and it should open.  
2 Open the intake grille.  
D
3 Release the knob on the center edge of the intake grille and pull  
the filter forward to remove the filter.  
A Knob  
I PLP-2.5KB  
B Grille  
C Intake grille  
D Filter  
B
I PLP-2.5KB  
1 Pressing the PUSH button on the outer side of the intake grille  
C
causes the intake grille to open automatically.  
1
A
2 A filter with an intake grille on it can be removed by pulling the  
filter forward.  
A Knob  
D
B Grille  
2
C Intake grille  
D Filter  
15  
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6. Care and cleaning  
6.1. Cleaning the filters and the indoor unit  
Cleaning the filters  
Clean the filters using a vacuum cleaner. If you do not have a vacuum  
cleaner, tap the filters against a solid object to knock off dirt and dust.  
If the filters are especially dirty, wash them in lukewarm water. Take  
care to rinse off any detergent thoroughly and allow the filters to dry  
completely before putting them back into the unit.  
Caution:  
Do not dry the filters in direct sunlight or by using a heat source,  
such as an electric heater: this may warp them.  
Do not wash the filters in hot water (above 50°C), as this may  
warp them.  
Make sure that the air filters are always installed. Operating the  
unit without air filters can cause malfunction.  
ON/OFF  
Cleaning the indoor unit  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
CHECK  
CLOCK  
˚C  
C
H
E
C
K
M
O
D
E
STAND BY  
DEFROST  
T
E
S
T
R
U
N
˚C  
N
O
T
A
V
A
I
L
A
B
L
E
Wipe the outside of the unit with a clean, dry, soft cloth.  
Clean off any oil stains or finger marks using a neutral household de-  
tergent (such as dishwashing liquid or laundry detergent).  
Caution:  
Never use gasoline, benzene, thinner, scouring powder or any type  
of non-neutral detergent, as these substances may damage the units  
case.  
6.2. Care and cleaning  
Clean the filter  
When the AFILTERindicator blinks on the remote controller to alert you  
to the necessity of cleaning of the filter.  
A
As a guideline for typical office environment, the long-life filter must be  
cleaned every 2,500 operating hours.  
Reset the FILTER indicator  
ON/OFF  
CENTRALLY CONTROLLED  
ON OFF  
1Hr.  
FILTER  
1 Press the FILTER button twice after cleaning.  
˚C  
CHECK  
CLOCK  
CHECK MODE  
TEST RUN  
s When you press the FILTER button twice, the FILTERindicator  
STAND BY  
DEFROST  
˚C  
Awill be turned off and reset.  
NOT AVAILABLE  
s The FILTER indicator provides you with a guideline for the neces-  
sity of filter cleaning based on total operating hours in typical  
indoor air conditions. Depending on different operating environ-  
ments, more or less frequent cleaning may be necessary.  
CLOCKON OFF  
FILTER  
CHECK  
1
TEMP. TIMER SET  
TEST RUN  
REMOTE CONTROLLER  
PAR-JH240KA  
16  
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6. Care and cleaning  
6.3. End-of-season  
s Press POWER ON/OFF to turn the unit off.  
s Turn off the main power switch.  
s Clean the filters and the indoor unit thoroughly.  
s Clean the outdoor unit and place a protective cover over it to keep  
out dirt and rubbish.  
ON/OFF  
CENTRALLY CONTOLLED  
ON OFF  
1Hr.  
FILTER  
CHECK  
CLOCK  
˚C  
C
H
E
C
K
M
O
D
E
STAND BY  
DEFROST  
T
E
S
T
R
U
N
˚C  
N
O
T
A
V
A
I
L
A
B
L
E
6.4. Pre-season checks  
s Remove the protective cover from the outdoor unit.  
s Check that the outdoor unit is properly installed.  
s Check that the outdoor units ground wire is properly attached.  
s Check that the intakes and outlets on both the indoor and out-  
door units are free of any obstruction.  
s Check that the drain hose is not blocked, that there are no kinks  
in it, and that it is correctly installed.  
s Check that the filters are installed in the indoor unit. Operating  
the air-conditioner without filters can damage it.  
Caution:  
The first time you use the air-conditioner after a long break (e.g. the  
first hot day of summer), turn on the main power at least twelve hours  
before you turn on the unit using the POWER ON/OFF button. This  
will assist trouble-free operation.  
17  
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7. Troubleshooting  
Before you call out a repair man, check the following table to see whether there is a simple solution to your problem.  
Problem  
Unit will not start.  
Display reading  
Cause  
Solution  
Pilot lamp does not turn on even Main power switch is turned off.  
when the POWER ON/OFF button  
is pressed.  
Turn main power on. Then press  
the POWER ON/OFF button to turn  
the unit on.  
Main power fuse has blown.  
Replace the fuse.  
Outdoor unit’s ground fault breaker is Reset the ground fault breaker.  
open.  
A power cut has occurred (see NOTE Wait until power is restored, then  
below).  
press the POWER ON/OFF button  
to turn the unit on.  
Unit discharges air well, but fails to Remote controller shows that the unit  
Improper temperature setting - e.g. Check the set temperature on the re-  
you have selected COOL mode, but mote controller and the actual intake  
the desired temperature setting is air temperature. Use the COOLER  
higher than the current room tem- andWARMER buttons to set the tem-  
cool or heat the room well.  
is operating.  
perature.  
perature as described in “Selecting  
a temperature” on page 10.  
Filters are clogged.  
Clean the filter and resume opera-  
tion. See “Cleaning the filters and  
the indoor unit” on page 15.  
Outdoor unit’s intake or outlet is ob- Remove the obstruction.  
structed.  
A door or window has been left open. Shut door or window.  
Unit does not start immediately.  
Unit stops soon after starting.  
Remote controller shows that the unit Unit is waiting three minutes before Wait until the unit restarts automati-  
is operating.  
restarting.  
cally.The compressor may hesitate  
resuming because a three-minute  
resume prevention circuit is incor-  
porated in the outdoor unit for pro-  
tection of the compressor.  
Remote controller check display Indoor or outdoor unit’s intake or out- Remove obstruction and restart the  
reads “CHECK P6” or “CHECK P8”. let is obstructed.  
unit.  
Filters are clogged.  
Remove the obstruction. Clean the  
filter and resume operation. See  
“Cleaning the filters and the indoor  
unit” on page 15.  
NOTE: After a power cut, the unit will not restart automatically. You will have to restart it by pressing the POWER - ON/OFF button on the  
remote controller.  
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:  
“CHECK” followed by “P1”, “P2”, “P3”, “P4”, “P5”, “P7” or “CENTRALLY CONTROLLED” is displayed on the control panel.  
The switches do not work properly.  
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 or heating has just begun or has just stopped. It is caused by the indoor unit shrinking  
or expanding slightly due to the change in temperature.  
The message “CENTRALLY CONTROLLED” appearing on the LCD panel: from time to time, this message may come up on the LCD panel. This does  
not indicate any malfunction.  
Warning:  
If the air conditioner operates but does not cool or heat (depending on model) the room, consult your dealer since there may be a refrigerant  
leak. Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out.  
The refrigerant charged in the air conditioner is safe. Refrigerant normally does not leak, however, if refrigerant gas leaks indoors, and comes  
into contact with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.  
18  
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8. Specifications  
Model  
W
Item  
Cooling*2 capacity  
Total input  
PLH-2KKC  
5350  
PLH-2.5KKC  
6200  
BTU/h  
kW  
18300  
21200  
2.32  
2.54  
W
6000  
6900  
Heating*3 capacity  
BTU/h  
kW  
20500  
23500  
Total input  
Model name  
2.29  
2.30  
PLH-2KKC  
~ (1ph), 240V, 50Hz  
13 - 16  
PLH-2.5KKC  
~ (1ph), 240V, 50Hz  
14 - 17  
Power supply*1  
Air flow (Lo-Hi)  
CMM  
Fan Noise level (Lo-Hi) dB (A)  
32 - 37  
35 - 39.5  
0.030  
Motor output  
Booster heater  
kW  
kW  
mm  
kg  
0.030  
Dimensions (H × W × D)  
Weight  
253 × 660 × 660  
19  
253 × 660 × 660  
20  
Dimensions (H × W × D)  
Weight  
mm  
kg  
30 × 760 × 760  
3.7  
30 × 760 × 760  
3.7  
Model name  
PUH-2AKA  
PUH-2.5AKA  
~ (1ph)  
240V  
~ (1ph)  
240V  
Power supply*1  
50Hz  
50Hz  
Air flow  
Fan  
CMM  
kW  
45  
50  
Motor output  
0.065  
0.085  
Compressor motor output  
Crankcase heater  
Dimensions (H × W × D)  
Weight  
kW  
1.7  
2.0  
W
38  
38  
mm  
kg  
650 × 870 × 295  
850 × 870 × 295  
64  
68  
Noise level  
dB (A)  
49  
52  
Notes: *1 Refer to the product nameplate attached to the unit for the electrical specifications.  
*2 Rating conditions (cooling) Indoor  
*3 Rating conditions (heating) Indoor  
:
:
27°C DB, 19°C WB  
Outdoor  
Outdoor  
:
:
35°C DB  
21°C DB  
7°C DB, 6°C WB  
*4 These data based on indicated voltage. 1ph, 240V  
*5 Specifications subject to change without notice.  
Operating range  
Indoor air intake temperature  
35°C DB, 22.5°C WB  
21°C DB, 15.5°C WB  
27°C DB  
Outdoor air intake temperature  
46°C DB  
Maximum  
Minimum  
Maximum  
Minimum  
Cooling  
Heating  
–5°C DB  
21°C DB, 15.5°C WB  
–8.5°C DB, –9.5°C WB  
20°C DB  
Units should be installed by licensed electric contractor accordingly to local code requirement.  
19  
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN  
Printed in Japan  
BG79S987H02  

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