Hitachi RPC-30MH1 User manual

– 1 –
ENGLISH
INDOOR UNIT
INDOOR UNIT/OUTDOOR UNIT
RPC-30MH1 / RAC-30MH1
RAC-30MH1
MODEL
OUTDOOR UNIT
Instruction manual Page 1~22
To obtain the best performance, please read this instruction manual completely.
SPLIT TYPE AIR CONDITIONER
RPC-30MH1
(EN1) RPC-30MH1 DD0002331U.indd 1 7/19/10 11:28 AM

– 2 –
!
SAFETY PRECAUTION
WARNING
PRECAUTIONS DURING INSTALLATION
ODo not reconstruct the unit.
Water leakage, fault, short circuit or re may occur if you reconstruct the
unit by yourself.
OPlease ask your sales agent or qualied technician for the installation of
your unit. Water leakage, short circuit or re may occur if you install the
unit by yourself.
OPlease use earth line.
Do not place the earth line near water or gas pipes, lightning-conductor, or
the earth line of telephone. Improper installation of earth line may cause
electric shock.
OA circuit breaker should be installed depending on the mounting site of the
unit. Without a circuit breaker, the danger of electric shock exists.
ODo not install near location where there is ammable gas. The outdoor unit
may catch re if ammable gas leaks around it.
OPlease ensure smooth ow of water when installing the drain hose.
CAUTION
!
!
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
OAvoid an extended period of direct air ow for your health.
W
A
R
N
I
N
G
!
OShould abnormal situation arises (like burning smell), please stop operating the unit
and turn off the circuit breaker. Contact your agent. Fault, short circuit or re may
occur if you continue to operate the unit under abnormal situation.
OPlease contact your agent for maintenance. Improper self maintenance may cause
electric shock and re.
OPlease contact your agent if you need to remove and reinstall the unit. Electric
shock or re may occur if you remove and reinstall the unit yourself improperly.
OIf the supply cord is damaged, it must be replaced by the special cord
obtainable at authorized service/parts centers.
ODo not insert a nger, a rod or other objects into the air outlet or inlet. As
the fan is rotating at a high speed, it will cause injury. Before cleaning, be
sure to stop the operation and turn the breaker OFF.
ODuring thunder storm, disconnect and turn off the circuit breaker.
ODo not use any conductor as fuse wire, this could cause fatal accident.
!
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the gure indicates prohibition.
W
A
R
N
I
N
G
!
O
Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
O
Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which,
if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may
result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.
O
The sign indicate the following meanings.
O
Please keep this manual after reading.
(EN1) RPC-30MH1 DD0002331U.indd 2 7/19/10 11:28 AM

– 3 –
ENGLISH
PRECAUTIONS DURING OPERATION
ODo not attempt to operate the unit with wet hands, this could cause fatal
accident.
OWhen operating the unit with burning equipments, regularly ventilate the
room to avoid oxygen insufciency.
ODo not direct the cool air coming out from the air-conditioner panel to face
household heating apparatus as this may affect the working of apparatus
such as the electric kettle, oven etc.
OPlease ensure that outdoor mounting frame is always stable, rm and
without defect. If not, the outdoor unit may collapse and cause danger.
ODo not splash or direct water to the body of the unit when cleaning it as
this may cause short circuit.
OWhen operating the unit with the door and windows opened, (the room humidity is always above
80%) and with the air deector facing down or moving automatically for a long period of time,
water will condense on the air deector and drips down occasionally. This will wet your furniture.
Therefore, do not operate under such condition for a long time.
OIf the amount of heat in the room is above the cooling or heating capability of the unit (for
example: more people entering the room, using heating equipments and etc.), the preset room
temperature cannot be achieved.
OThis appliance is not intended for use by young children unless they have been adequately
supervised by a responsible person to ensure that they can use the appliance safely.
OYoung children should be supervised to ensure that they do not play with the appliance.
ODo not climb on the outdoor unit or put objects on it.
OPlease switch off the unit and turn off the circuit breaker during cleaning,
the high-speed fan inside the unit may cause danger.
OTurn off the circuit breaker if the unit is not to be operated for a long period.
C
A
U
T
I
O
N
!
OThe product shall be operated under the manufacturer specication and
not for any other intended use.
ODo not use any aerosol or hair sprays near the indoor unit. This chemical
can adhere on heat exchanger n and blocked the evaporation water
ow to drain pan. The water will drop on tangential fan and cause water
splashing out from indoor unit.
(EN1) RPC-30MH1 DD0002331U.indd 3 7/19/10 11:28 AM

– 4 –
INDOOR UNIT
NAMES AND FUNCTIONS OF EACH PART
OUTDOOR UNIT
WIDTH (mm)MODEL
RPC-30MH1
RAC-30MH1
HEIGHT (mm) DEPTH (mm)
MODEL NAME AND DIMENSIONS
1320
850
210
800
670
298
DRAIN PIPE
Condensed water drain to outside.
CONNECTING CORD
AIR INLET (BACK, LEFT SIDE)
AIR OUTLET
PRE-FILTER
To prevent dust from coming into the indoor unit.
(Refer page 18)
SUCTION GRILL (AIR INLET)
HORIZONTAL DEFLECTOR (AIR OUTLET)
(Refer page 14)
REMOTE CONTROL
Send out operation signal to the indoor unit. So as
to operate the whole unit.
(Refer page 6)
(EN1) RPC-30MH1 DD0002331U.indd 4 7/19/10 11:28 AM

– 5 –
ENGLISH
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work.
Normal operation:
OBy pressing the temporary switch, the operation is done in previously set operation mode.
OWhen the operation is done using the temporary switch after the power source is turned off and turn
on again, the operation is done in automatic mode.
Force cooling operation: (For servicing purpose only)
OBy pressing and hold the temporary switch for more than 5 second, the unit will enter “Force Cooling
Operation”.
OPress again the temporary switch to cancel the force cooling operation.
ODo not operate in this mode for more than 5 minutes.
* To be conduct by authorised personel only.
OPERATION INDICATOR
TEMPORARY SW
(EN1) RPC-30MH1 DD0002331U.indd 5 7/19/10 11:28 AM

– 6 –
NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT
QThis controls the operation function and timer setting of the room air conditioner.
Precautions for Use
ODo not put the remote controller in the following places.
OUnder direct sunlight.
OIn the vicinity of a heater.
OHandle the remote controller carefully. Do not drop it on the oor, and protect it from water.
OOnce the outdoor unit stops, it will not restart for about 3 minutes (unless you turn the power
switch off and on or unplug the power cord and plug it in again).
This is to protect the device and does not indicate a failure.
OIf you press the FUNCTION selector button during operation, the device may stop for about
3 minutes for protection.
START/STOP Button
Press this button to start operation.
Press it again to stop operation.
OPERATION LAMP
FUNCTION Button
Use this button to select the
operating mode. Every time you
press it, the mode will change from
(AUTO) to (HEAT) to
(DEHUMIDIFY) and to (COOL)
cyclically.
SLEEP Button
Use this button to set the sleep
timer. ( Page 11)
Reserve Button
Timer setting reservation.
OFF TIMER Button
Select the turn OFF time.
ON TIMER Button
Select the turn ON time.
Transmission Sign
The transmission sign blinks
when a signal has been sent.
TEMPERATURE Button
Room temperature setting.
Value will change quicker when keep
pressing.
RESET Button
FAN SPEED Button
This determines the fan speed.
Every time you press this button,
the intensity of circulation will
change from (AUTO) to (HI)
to (MED) to (LOW) (This
button allows selecting the optimal
or preferred fan speed for each
operation mode).
AUTO SWING Button
Controls the angle of the horizontal
air deector.
CANCEL Button
Cancel timer reservation.
(EN1) RPC-30MH1 DD0002331U.indd 6 7/19/10 11:28 AM

– 7 –
ENGLISH
AUTOMATIC OPERATION
The device will automatically determine the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the current room
temperature. The selected mode of operation will change when the room temperature varies.
QAs the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
Press the FUNCTION selector so that the display indicates the (AUTO)
mode of operation.
OWhen AUTO has been selected, the device will automatically determine
the mode of operation, HEAT, COOL or DEHUMIDIFY depending on the
current room temperature.
OIf the mode automatically selected by the unit is not satisfactory, manually
change the mode setting (heat, dehumidify or cool).
Press the (START/STOP) button.
Operation starts with operation lamp lights.
Press the button again to stop operation.
1
START
STOP
VARIOUS FUNCTIONS
QAuto Restart Control
OIf there is a power failure, operation will be automatically restarted when the power is resumed with previous operation
mode.
(As the operation is not stopped by remote controller.)
OIf you intend not to continue the operation when the power is resumed, switch off the power supply.
When you switch on the circuit breaker, the operation will be automatically restarted with previous operation mode.
Note: 1. If you do not require Auto Restart Control, please consult your sales agent or OFF by remote control.
2. Auto Restart Control is not available when Timer or Sleep Timer mode is set.
FAN SPEED (AUTO) ..... When the AUTO fan speed mode is set in the cooling/heating operation:
For the heating operation
OThe fan speed will automatically change according to the temperature
of discharged air.
OWhen the difference of room temperature and setting temperature is
large, fan starts to run at HI speed.
OWhen the room temperature reaches setting temperature, fan speed
changes to LOW automatically.
For the cooling operation
OWhen the difference of room temperature and setting temperature is
large, fan starts to run at HI speed.
OAfter room temperature reaches the preset temperature, the cooling
operation, which changes the fan speed and room temperature to obtain
optimum conditions for natural healthful cooling will be performed.
You can raise or lower the temperature setting as necessary.
Press the temperature button and the temperature
setting will change by 1°C each time.
●The preset temperature and the actual room temperature may vary
somewhat depending on conditions.
●The display will indicate the temperature setting.
(EN1) RPC-30MH1 DD0002331U.indd 7 7/19/10 11:28 AM

– 8 –
HEATING OPERATION
OUse the device for heating when the outdoor temperature is under 15°C.
When it is too warm (over 15°C), the heating function may not work in order to protect the device.
OIn order to keep reliability of the device, please use this device above -10°C of the outdoor
temperature.
Press the FUNCTION selector so that the display indicates
(HEAT).
Set the desired FAN SPEED with the (FAN SPEED) button
(the display indicates the setting).
(AUTO): The fan speed is HI at first and varies to
MED or LOW automatically when the preset
temperature has been reached.
(HI) : Economical as the room will become warm
quickly.
But you may feel a chill at the beginning.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
Set the desired room temperature with the TEMPERATURE
buttons (the display indicates the setting).
The temperature setting and the actual room temperature may
vary somewhat depending on conditions.
Press the (START/STOP) button. Heating operation starts
with operation lamp lights. Press the button again to stop
operation.
QAs the settings are stored in memory in the remote controller, you only
have to press the (START/STOP) button next time.
1
2
3
START
STOP
(EN1) RPC-30MH1 DD0002331U.indd 8 7/19/10 11:28 AM

– 9 –
ENGLISH
DEHUMIDIFYING OPERATION
Use the device for dehumidifying when the room temperature is over 16°C.
When it is under 15°C, the dehumidifying function will not work.
QDehumidifying Function
When the room temperature is higher than the temperature setting: The device will dehumidify the room,
reducing the room temperature to the preset level.
When the room temperature is lower than the temperature setting: Dehumidifying will be performed at
the temperature setting slightly lower than the current room temperature, regardless of the temperature
setting. The function will stop (the indoor unit will stop emitting air) as soon as the room temperature
becomes lower than the setting temperature.
Set the desired room temperature with the TEMPERATURE
button (the display indicates the setting).
The range of 20-26C is recommended as
the room temperature for dehumidifying.
°C
Press the (START/STOP) button. Dehumidifying operation
starts with operation lamp lights. Press the button again to
stop operation.
2
QAs the settings are stored in memory in the remote controller, you
only have to press the (START/STOP) button next time.
START
STOP
Press the FUNCTION selector so that the display indicates
(DEHUMIDIFY).
The FAN SPEED is set at LOW automatically.
The FAN SPEED button does not work.
1
(EN1) RPC-30MH1 DD0002331U.indd 9 7/19/10 11:28 AM

– 10 –
COOLING OPERATION
Use the device for cooling when the outdoor temperature is – 10~ 43°C.
If indoor humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit.
Note: When outdoor ambient temperature is low and the device is required to run cooling operation, the
outdoor fan may reduce its speed based on micon judgement. This is to prevent dew formation
at indoor unit air blow area or ice formation on the indoor heat exchanger.
Press the FUNCTION selector so that the display indicates
(COOL).
Set the desired FAN SPEED with the (FAN SPEED) button
(the display indicates the setting).
(AUTO): The FAN SPEED is HI at rst and varies to
MED or LOW automatically when the preset
temperature has been reached.
(HI) : Economical as the room will become cool
quickly.
(MED) : Fan speed slow.
(LOW) : Fan speed slower.
Set the desired room temperature with the TEMPERATURE
button (the display indicates the setting).
The temperature setting and the actual room temperature may
vary somehow depending on conditions.
Press the (START/STOP) button. Cooling operation starts with
operation lamp lights. Press the button again to stop operation.
The cooling function does not start if the temperature setting
is higher than the current room temperature (even though the
(OPERATION) lamp lights). The cooling function will start
as soon as you set the temperature below the current room
temperature.
QAs the settings are stored in memory in the remote controller, you
only have to press the (START/STOP) button next time.
1
2
START
STOP
3
(EN1) RPC-30MH1 DD0002331U.indd 10 7/19/10 11:28 AM

– 11 –
ENGLISH
TIMER RESERVATION
QON Timer and OFF Timer are available.
1
OFF Timer Reservation QOperation stop at setting time
2Press the (Reserve) button
OOFF TIMER reserved when press the (Reserve)
button.
OThe (OFF) mark starts lighting instead of blinking.
1
ON Timer Reservation
1Press the (Cancel) button
OAs the time settings are stored in remote controller
memory, you only have to press the (Reserve)
button in order to use the same setting next time.
CANCELLATION of Timer Reservation
2Press the (Reserve) button
OON TIMER reserved when press the (Reserve)
button.
OThe (ON) mark starts lighting instead of blinking.
QOperation will start for setting
temperature at setting time (The starting
time may different depend on the room
temperature and set temperature).
0.5 hour interval 1 hour interval
OFF TIME setting
OSelect the OFF TIME by pressing the (OFF)
Button.
OSetting time will change according to the below
sequence when you press the button.
OThe value change quicker if you keep pressing the
button.
0.5 hour interval 1 hour interval
ON TIME setting
OSelect the ON TIMER by pressing the (ON)
Button.
OAt the beginning of setting, time 6 hours was set.
OSetting time will change according to the below
sequence.
OThe value change quicker if you keep pressing the
button.
(EN1) RPC-30MH1 DD0002331U.indd 11 7/19/10 11:28 AM

– 12 –
HOW TO SET THE SLEEP TIMER
Mode
Sleep timer
Indication
1 hour 2 hours 3 hours 7 hours
Sleep timer off
44 44
1
Sleep Timer: The device will continue working for the designated
number of hours and then turn off.
Press the SLEEP button, to set the sleep timer.
The timer information will be displayed on the remote controller.
How to Cancel Reservation
Press the (CANCEL) button. The (SLEEP TIMER) sign goes out from display.
Example: Setting 3 hours
sleep time.
(EN1) RPC-30MH1 DD0002331U.indd 12 7/19/10 11:28 AM

– 13 –
ENGLISH
Explanation of the sleep timer
The device will control the FAN SPEED and room temperature
automatically so as to be quiet and good for people’s health.
OIf you set the sleep timer after the off or on-timer has been
set, the sleep timer becomes effective instead of the off or
on-timer set earlier.
OYou can not set other timer during sleep timer operation.
OAfter sleep timer time is up and when press sleep button
again, the sleep timer will be set as last setting.
OSleep timer is effective only once.
NOTE
(EN1) RPC-30MH1 DD0002331U.indd 13 7/19/10 11:28 AM

– 14 –
ADJUSTING THE AIR DEFLECTOR
1Adjustment of the conditioned air in the upward and
downward directions.
According to “Dehumidifying” or “Cooling” operation, the
horizontal air deector is automatically set to the proper
angle suitable for each operation. The deector can be
swung up and down and also set to the desired angle
using the “ (AUTO SWING)” button. (If the angle
of the deector is changed, it will not return to the auto-
set position after operations start unless the operation
mode is switched.)
OIf the “ (AUTO SWING)” button is pressed
once, the horizontal air deector swings up and
down. If the button is pressed again, the deector
stops in its current position. Several seconds (about
6 seconds) may be required before the deector
starts to move when press again.
OUse the horizontal air deector within the adjusting
range shown on the right.
OWhen the “ (AUTO SWING)” button is
pressed while the operation is stopped, the horizontal
air deector moves and stops at the position where
the air outlet closes.
OWhen the auto swing operation is performed, if
the horizontal air deector is moved manually, the
swinging range may drift. However, it will return to
the original operation range after a short time.
!
CAUTION
When operating the unit in cooling operation with the air deector facing down and moving
automatically for a long period of time, water will condensed on the air deector and drips
down occasionally. This will wet your furniture.
(EN2) RPC-30MH1 DD0002331U.indd 14 7/19/10 11:29 AM

– 15 –
ENGLISH
CIRCUIT BREAKER
When you do not use the room air conditioner, set the circuit breaker to “OFF”.
CAUTION
!
1. An average room temperature setting is probably the best for you as well as
being economical.
Excessive cooling or heating is not recommended for health reasons. High electricity
bills may also result.
Close the curtains or blinds to prevent heat from owing into or escaping the room
as well as to make more effective use of electricity.
2. At intervals, the doors and windows should be opened to let fresh air in.
Make sure the room is ventilated when operating the air
conditioner at the same time as other heating appliances.
3. Using the timer is recommended before going to sleep or going out.
4. The following must never be used for cleaning the indoor and outdoor units.
Benzine, thinner and scrub can damage plastic surfaces or coating.
Hot water above 40°C can shrink the lter and deform plastic parts.
5. Do not block the air intake and air outlet.
Do not block the air outlets and intakes of the indoor and outdoor units with curtains
or other obstacles which could degrade air conditioner performance and cause unit
failure.
(EN2) RPC-30MH1 DD0002331U.indd 15 7/19/10 11:29 AM

– 16 –
Suitable Room Temperature Install curtain or blinds
Ventilation Effective Usage Of Timer
Do Not Forget To Clean The Air Filter Please Adjust Suitable Temperature
For Baby And Children
!
It is possible
to reduce heat
entering the
room through
windows.
At night, please use the “OFF or ON timer
operation mode”, together with your wake up
time in the morning. This will enable you to
enjoy a comfortable room temperature. Please
use the timer effectively.
Dusty air lter will reduce the air volume and
the cooling efciency. To prevent from wasting
electric energy, please clean the lter every
2 weeks.
Please pay attention to the room temperature
and air ow direction when operating the unit
for baby, children and old folks who have
difculty in movement.
!
THE IDEAL WAYS OF OPERATION
Warning
Freezing temperature
is bad for health and
a waste of electric
power.
Caution
Do not close the room for a long period of
time. Occasionally open the door and windows
to allow the
entrance of
fresh air.
(EN2) RPC-30MH1 DD0002331U.indd 16 7/19/10 11:29 AM

– 17 –
ENGLISH
FOR USER’S INFORMATION
The Air Conditioner And The Heat Source In The Room
Not Operating For A Long Time
When Lightning Occurs
!
When the indoor unit is not to be used for a long
period of time, please switch off the power from the
mains. If the power from mains remains “ON”, the
indoor unit still consumes about 8W in the operation
control circuit even if it is in “OFF” mode.
!
Interference From Electrical Products
!
Product Operating Life
This term is valid only for the products, being purchased on the territory of Russian Federation.
In accordance with the article 5.2 of the Law “On Protection of Consumers” in operational conditions in Russian
Federation the operating life of a domestic air conditioner is determined as 7 years from the date of manufacture.
Considering the high quality, reliability and high level of operating safety of “Hitachi” products, the actual operating
life may considerably exceed the ofcial one.
This operating life is related to those parts of the product that are needed for its proper functioning under the fol-
lowing conditions:
OThe item is properly assembled by a certied company and is used according to the service and operation
manual.
OThe repair and annual technical service are carried out by the company which installed this product
Caution
If the amount of heat in the room is above the cooling
capability of the air conditioner (for example: more people
entering the room, using heating equipments and etc.), the
preset room temperature cannot be achieved.
Warning
To protect the whole unit during lightning, please
stop operating the unit and remove the plug from
the socket.
Caution
To avoid noise interference, please place the indoor
unit and its remote controller at least 1m away from
electrical products.
Inverter-type
uorescent
lamp.
To prevent
interference,
place at least
1m away
OFF
(EN2) RPC-30MH1 DD0002331U.indd 17 7/19/10 11:29 AM

– 18 –
MAINTENANCE
Cleaning and maintenance must be carried out by qualied service personnel.
Before the cleaning, stop operation and disconnect the power supply.
1. CLEANING OF PRE-FILTER
1Taking Out the Pre-Filter
OTake out the pre-lter according to the following
steps.
– Step 1
Open the air inlet grille after pushing the
two knobs as shown by the arrow mark.
– Step 2
Take out the pre-lter from the air inlet grille
by supporting the air grille and lifting the
pre-lter after detaching the pre-lter from
two hinges.
2Clean the Pre-Filter
OClean the pre-lter according to the following
steps.
– Step 1
Use a vacuum cleaner or let water ow onto
the pre-lter for removing the dirt from the
pre-lter.
– Step 2
Dry the pre-lter in the shade after shaking
off moisture.
CAUTION
ODo not wash with hot water at more than 40°C. The pre-lter may shrink.
OWhen washing it, shake off moisture completely and dry it in the shade; do not expose it directly
to the sun. The pre-lter may shrink.
ODo not operate the air conditioner with the pre-lter removed. Dust may enter the air conditioner
and cause trouble.
Note:
OThis model has an air purifying lter. The cooling capacity is slightly weakened and the cooling
speed becomes slower when the air purifying lter is used. So, set the fan speed to “HIGH” when
using it in this condition.
!
!
Knob
Air Intake Grille
Hook
Air Filter
Push up the lter
CAUTION
(EN2) RPC-30MH1 DD0002331U.indd 18 7/19/10 11:29 AM

– 19 –
ENGLISH
1
2
3
REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS EITHER EVERY HALF YEARLY OR YEARLY.
CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP.
Is the earth line disconnected or broken?
Coming off or breakage of grounding wire may cause malfunction
or electrical shock.
Is the mounting frame seriously affected by rust and is the outdoor
unit tilted or unstable?
Outdoor unit may fall or drop if there is extreme rust on mounting
frame or outdoor unit is unstably installed. This may cause
injury.
!
!
2. CLEANING OF AIR PANEL
OWipe it with a soft dry cloth.
OWhen it is excessively dirty, wipe with soft cloth soaked in lukewarm water or neutral detergent.
Then wipe thoroughly with a soft dry cloth.
ODo not splash or direct water to the body of the unit when cleaning it as
this may cause short circuit.
ONever use hot water (above 40°C), benzine, gasoline, acid, thinner or a
brush, because they will damage the plastic surface and the coating.
3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
ORun the unit by setting the operation mode to (COOL),
the temperature to 32°C and the fan speed to HI for about
half a day on a ne day, and dry the whole of the unit.
OSwitch off the power plug.
!
Is the plug of power line rmly plugged into the socket?
(Please ensure no loose contact between them).
WARNING
WARNING
CAUTION
Air
Blow
Conrm
(EN2) RPC-30MH1 DD0002331U.indd 19 7/19/10 11:29 AM

– 20 –
AFTER SALE SERVICE AND WARRANTY
WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS
When it does not operate
OIs the fuse all right?
OIs the voltage extremely high or low?
OIs the circuit breaker “ON”?
OWas the air lter cleaned?
ODoes sunlight fall directly on the outdoor unit?
OIs the air ow of the outdoor unit obstructed?
OAre the doors or windows opened, or is there any source
of heat in the room?
OIs the set temperature suitable?
CONDITION CHECK THE FOLLOWING POINTS
Notes
OIn quiet or stop operation, the following phenomena may occassionally occur,
but they are not abnormal for the operation.
(1) Slight owing noise of refrigerant in the refrigerating cycle.
(2) Slight rubbing noise from the fan casing which is cooled and then gradually
warmed as operation stops.
OThe odor will possibly be emitted from the room air conditioner because the
various odor, emitted by smoke, foodstuffs, cosmetics and so on, sticks to it. So
the air lter and the evaporator regularly must be cleaned to reduce the odor.
OPlease contact your sales agent immediately if the air conditioner still fails to operate normally after the above
inspections. Inform your agent of the model of your unit, production number, date of installation. Please also
inform him regarding the fault.
OPower supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach
the specied capacity.
When it does not cool well
When it does not hot well
(EN2) RPC-30MH1 DD0002331U.indd 20 7/19/10 11:29 AM