Hitachi RA-08HV User manual

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• Do not insert anything like slender stick
into the discharge air plenum or return air
grille as the fan is running at high speed,
it is highly likely to cause danger.
When thunder is likely to happen, for
protecting the machine, stop operation
and turn off the power switch to prevent
from failure.
❹Press the button. Cooling operation starts with a beep. 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 “RUNNING” (OPERATION) lamp lights). The cooling function will start as soon as you set the
temperature below the current room temperature.
DEHUMIDIFYING OPERATION
Usethedevicefordehumidifyingwhentheroomtemperatureisabove16°C.
When it is under 15°C, the dehumidifying function will notwork.
• When the window and the door are open (the humidity inside the room continuously exceeds 80%), the air
vanes of the louver are facing down or in the auto-swing mode, do not operate the machine for too long as it
is likely that humid air may condensate on the louver and may drip down water and wet the furniture.
• If there is a heat source (many people come in and out, a heating appliance is being used, etc.) that exceeds the
capacity of cooling or heating, the room temperature may not reach the desired setting level.
• If there is any abnormal noise is heard during unit operation, refer to the service center or to the dealer from
where the air conditioner was purchased.
• When installing at areas subjected to high salinity, sulfur, corrosive substance such as coastal areas and
hot springs, the heat exchanger of the unit or the circulation piping must be treated with anti-corrosion
coating.Inaddition, installation atplaces subjectedtoplentyoffumes,at hospitalswhereelectromagnetic
wave isavailable, atplacessubjecttodustanddirtorspecialenvironmental situations aroundinstallation,
consult the service center or the dealer from where the air conditioner was purchased first.
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• Whileindoorunitfrontcoverisnot installed,donotoperatetheunit.Moreover, besuretotakegoodmeasures
against dust and dirt for unitbody.
•Beforetheunitstarts,besuretocheck thatthe roomhasbeencleaned up,airbornematters andodors have
been cleared, the unit body isclean. This willprevent insufficient cooling or water leakage inlater days.
• Plug the power cord to the right source, and the voltage required by the air conditioner is 230V.
• If the power of the air conditioner is connected to an incorrect voltage, it will invariably burn out the electrical
parts.
•Besuretofirmly plugthe power supply cordoritmaycause short circuit orheat resulting indanger offireor
electric shock.
• Periodically check the power cord plug and receptacle every year to ensure that they are clean.
•Wheninstallingthewater drain hose, besurewatercanflowoutsmoothly.Ifinstallation isnotproper, itis
possible that water may flow inside the room or get your furniture wet.
• This unitisintended tobeusedfor general family room airconditioning purpose, donot useitforstoring food,
animals and plants, precision machinery, fine art works, medicine, etc.
• The outdoor side should be well ventilated. Do not place any obstacle near the air discharge outlet, otherwise,
the unit performance may decrease and the noise increases.
• Do not place any object in front of the indoor side, otherwise, it may affect airflow and Impede operation of the
unit.
• Do not place any foreign material around the unit body, otherwise, it may affect the performance of the unit.
• Do not allow ejected heated air to face your neighbors. Also, do not let water dripping, drainage, vibration,
noise, etc. interfere your neighbors.
• Do not install at places where flammable objects and flammable gases exist.
If such objects and gases are around, a fire mayoccur.
e When installing near places with high humidity such as bathing facilities, damp and humid places, basements,
and places with frequent water accumulation, be sure to install an earth leakage circuit breaker to prevent
current leakage. Consult the dealers (a registered water and electrical engineering dealer) for details.
• To avoid carelessness from power companies or other accidents that cause over current to get into the unit via
the ground wire resulting in damage to the unit, be sure to install an earth leakage circuit breaker. Consult the
dealers (a registered water and electrical engineering dealer) for details. If no earth leakage circuit breaker is
installed, there is a risk of accident such as electric shock to occur.
• To avoid electric shock in case of current leakage, be sure to connect the air conditioner to the
ground. The ground wire diameter should be 2.5 mm² to 6 mm². Also, the end of the ground wire
must be crimped with a round terminal before securing it and must not be loose by accident.
Do not connect the ground wire to the gas pipe, water pipe, lightning rod, and the telephone line.
If the ground wire is not installed properly, there is a risk of electric shock. If the unit is not grounded,
the protective circuit such as lightning striking protection will not work properly.
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INVERTER
UNIT DISPLAY
INDICATION DISPLAY ON THE FRONT COVER
FAN SPEED indicator light
•When the unit is running, the light turnson.
•When you press this button, the intensity of circulation
will change from (AUTO) to (HI) to (ME) to (LO)incycle.
POWERFUL indicator light
•Use these buttons to start powerful operation.
Whenthe uni t is performing a powerful operation, this
light turns on.
Room temperature display
When the unit is powered up, the computer will
automatically detect the room temperature and
display the current temperature.
(Indicatestheerrorcodewhenanerroroccurs)
AUTO SWING indicator light
When you press the button, the vertical louver will
automatically be swinging.
TIMER indicator light
When the unit is preset with a timer, this light turns on.
Infrared light receiving window
A “beep” sound will be generated when it receives the
signal from the remote controller.
REMOTE CONTROLLER
MODE indicator light
When the unit is running, the light turns on.
When you press this button, the mode will change
, from (COOL) to (FAN) to (DRY) in cycle.
ON/OFF button
Press this button to start operation, press it again
to stop operation.
• Use only on single outlet circuit exclusive for the air conditioner.
• Ensure the mounting support is firm and steady or there is a risk the unit may fall.
Johnson Controls-Hitachi Air Conditioning Philippines, Inc.
1A Binictican Drive, Subic Bay Industrial Park Phase II Subic Bay Freeport Zone, Philippines
TEL: [phone]
TEL(SERVICE): [phone]
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• If there is an error (burning odor, etc.), stop operation and turn off the power switch and then notify the
service center or the dealer from where the air conditioner was purchased. If the air conditioner keeps on
running with the error, it may lead to failure, electric shock, fire, etc.
• To service the air conditioner, directly contact the service center or the dealer from where the air conditioner
was purchased. If it is improperly repaired by yourself, there is a risk of electric shock or fire.
• If the air conditioner is to be moved or relocated, directly contact the service center or the dealer from where
the air conditioner was purchased. If it is moved or relocated improperly by yourself, there is a risk of electric
shock or fire.
DC
• If the power cord is damaged, it must be replaced by the manufacturer or by the service
center or a technician to prevent danger
Operation manual
Window Inverter Type
Room Air Conditioner
• Air conditioner installation and its electrical wiring require a professional. Therefore, assign
only an authorized dealer or a certified technician to install your air conditioner and perform
its electrical wiring. Do not attempt to do it by yourself (charges are additional). If improperly
performed by yourself, it may cause leakage, electric shock or fire.
• Do not use a metal wire or copper wire as a fuse to prevent from failure or fire.
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•When installing, do not use an extended power cord or a power cord with excess bending
(radius less than 20mm). Also, use the cable tie supplied with the base-pan to secure it. Do not place the
cord inside the unit body or it may cause short circuit or abnormal heat leading to a fire due to insulation
damage by an overly compressed cord.
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Temperature button
Press this button to raise or lower the temperature.
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•When cleaning the unit body, never wash
it with splashing water as there is a risk
of current leakage.
• Do not let the discharge air plenum
directly face your body for a long
period of time, or it may have
adverse effect to health.
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• Do not operate the switch when your
hand is wet to prevent electric shock.
• If a gas stove is used while the air
conditioner is operating, be sure to
open the window often, or it is possible
to have insufficient oxygen inside.
• If the machine will not be used for a
long period of time, turn off the power
switch for safety.
• Do not place animals or plants at the place
to where the airflow is blowing directly, or it
will have adverse effect to them.
❶Press the button so that the display indicates "COOL".
❷Set the desired FAN SPEED with the button (the display indicates the
setting).
AUTO: The FAN SPEED is HI at first and varies to ME automatically when the preset
temperature has been reached.
❸Set the desired room temperature with the buttons. The temperature setting and
the actual room temperature may vary somewhat depending on conditions.
❶Press the button so that the display indicates “DRY” (DEHUMIDIFY).
The FAN SPEED is set at “LO” automatically.
❷Press the button.
SAFETY PRECAUTIONS
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
FUNCTIONS LIST AND FEATURES
USAGE PRECAUTIONS
INSTALLATION PRECAUTIONS
RA-08HV
RA-10HV
• Do not let the airflow directly face the
gas stove, or it is likely to cause
incomplete combustion.
RA-15HV
RA-20HV
RA-23HV
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS AIR
CONDITIONER.
KEEP THIS MANUAL FOR
FUTURE REFERENCE.
COOLING OPERATION
Use the device for cooling when the outdoor temperature is above 10°C. If humidity is very high
(over 80%) indoors, some dew may form on the air outlet grille of the indoor unit.
※ Operating range of cooling: Indoor 21°C~32°C, Outdoor 10°C~42°C
21°C -32°C ' outdoor 10°C -46°C.
•When cleaning the unit body, be sure to turn
off the power switch, or it may cause injury
as the fan is running at high speed inside.
• Read this section of “Safety precaution” carefully to understand proper usage of this unit before use.
• Pay special attentions to “ Warning” and “ Caution” designations contained in this manual. The “ Warning"
designation may cause death a serious of injury if not followed correctly. Failure to follow the instructions under the
“ Caution” designation may also cause possible serious consequence depending on the situation. Therefore, be
sure to observe these designations for your safety.
•In addition, this sign “”shown in the diagram denotes prohibited items, whereas “”denotes mandatory items.
• Be sure to keep this manual after reading.
• The manufacturer is not liable for maintenance and repair of the air conditioner as stipulated in the warranty. The
same condition applies to any damage to this unit body/nearby property if you fail to observe warning instructions in
this manual/use of parts not supplied from us.
•This product uses non-flammable R410A refrigerant. While the product is under installation or transport, except R410A
refrigerant, please do not charge other refrigerants, air, oxygen, propane, alcohol, or any flammable material to avoid
machine damage, blaze, or explosion. Be sure to use the refrigerant specified by the manufacturer.
SAFETY PRECAUTIONS

NOTICE
When the air conditioner will not be used for a Iong period of time, turn on the “Strong fan speed” on a clear day and
run the unit for haIf a day so that the inside of the unit can be dried.
After the inside of the air conditioner is dried, unplug the power cord or disengage the knife switch or the circuit
breaker exclusively set up for the air conditioner for safety.
LOCK SETTING
After the lock setting is done, you can only use the button and the
button to change mode, the others are invalid.
(TEMP.) OUTDOOR SIDE INSTALLATION DISTANCE
POWERFUL OPERATION
During the operation (DEHUMDIFYING, COOLING),
you should press the button to start the powerful operation
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HOW TO SET THE TIMER
❷When the machine runs-on, press button.
▪ You can set the time to stop.
▪ Press continuously to get rapid adjustment.
▪ If you want to stop the machine right away, youcanpress button to cancel all reservation of timesetting.
HOW TO SET THE SLEEP TIMER
This function will change the fan speed and the room temperature setting automatically
during sleep and you also can use the OFF-TIMER function together too.
You can set the time in 1 to 24 hours for sleep mode.
as the top priority to turn-on,
The other timer setting are all invalid.
HOW TO ASSEMBLE THE INSTALLATION BRACKET
unit: mm
2. These are all normal indications:
It is easy for the front cover and the cabinet to get dirty. Wipe it regularly with dry cloth. If it is dirty, use a wet and
soft cloth to wipe.
When the air conditioner starts to operate, it may possibly blow out dusts. This is because there are dusts
accumulating on the discharge air plenum.
NOTICE :
Do not wash the front cover with water over 50°C to prevent it deformation.
To prevent the front cover from damage, never wash it with volatile oil, gasoline,
thinner, grinding powder or a chemical abrasive cloth.
To avoid poor insulation and current leakage, never wash the air conditioner
directly with water.
WIRING DIAGRAM
1
2
❶Choose the operating mode, fan speed and setting temperature you want.
❷In the power off state, press and hold the button first and press the lower
location of (TEMP.) button later.
(Meanwhile, the mark will be displayed on the remote controller.)
CANCEL: Repeat the ❷procedure above to cancel the lock setting.
❶Press the button to start the powerful operation.
Every time you press the button, it will increase the fan speed. If the
original fan speed is "Hi", the fan speed will not change.
CANCEL: Press the button again
CONTENT OF THE POWERFUL OPERATION
The timer may be used in two ways: (OFF-TIMER), (ON-TIMER). You can set only one kind of
timer. You can set the time in 1 to 24 hours for timer mode.
❶When the machine runs-off, press the button.
▪You can set the time of running.
▪Press continuously to get rapid adjustment.
▪If you want to start the machine right away, you can press button to cancel all
reservation of time setting.
❶Press button. Display indicates
▪Press continuously to get rapid adjustment.
▪The SLEEP operation starts at beep sound, then the remote controller display will
show the reservation time and turn-off time.
CANCEL: Press the button to cancel.
For safety purposes, especially on high-rise buildings,
bracket installation can be done inside the room.
Insert the Drain Elbow into the Base Drain Hose.
Connect the Water Pipe Drain to the other end of
the Drain Elbow
ACCESSORY NAMES AND QUANTITIES
▪Main bracket X1
▪Fix plate X2
▪Caulking Foam X1
▪Water drainage elbow X1
Before cleaning, turn off the air conditioner first and unplug the power cord.
(Never unplug the cord with a wet hand to prevent electric shock.)
INSTALLATION DIMENSIONS
▪If the air conditioner does not resume standard operation after checking any of the above items, please notify
the service center or the dealer where the air conditioner is purchased of the malfunction together with the air
conditioner model, manufacture number, and installation date recorded on the warranty.
▪If the power cord/cord plug gets abnormally hot or the insulation sheath is stripped/melted, unplug the power
cord and immediately contact the service center and the dealer where the air conditioner is purchased. Do not
replace the power cord by yourself to prevent danger!
▪The timer indicator light on the display flashes and the display screen shows a number.
▪(The cause of the error can be determined by the number of flashes, and thus the problem can soon be
corrected. Therefore, before turning off the power switch, confirm the number of flashes and the displayed
number and then notify the service personnel.)
3. Warranty
▪The warranty is supplied with the unit body. In case of failure during the warranty period, show your warranty to
the service personnel and you are entitled to have a free-of-charge service or a partial charge for parts /
materials to be replaced according to the prescribed items in the warranty.
▪The damaged copper tubes resulted from corrosion by sulfur gas or salinity and refrigerant leakage are not
covered by the warranty for free of charge service.
▪The warranty does not cover defects or malfunctions caused by pests and insects.
HOW TO ASSEMBLE THE WATER DRAINAGE
▪Battery X2
▪Remote Controller X1
▪Parts bag X1
1. If an error is found, first check the following items.
65MP1433 RA-BA-L
SERVICE GUIDELINES
2. CLEANING THE FRONT COVER AND THE CABINET
3. HOW TO HANDLE THE AIR CONDITIONER AFTER THE USAGE SEASON IS OVER
AFTER-SALE SERVICE AND WARRANTY
HOW TO ASSEMBLE THE INSTALLATION BRACKET AND THE WATER DRAINAGE
INSTALLATION PRECAUTIONS
Use the screws supplied
together with the unit to
secure the front cover.
Before pulling out the unit
body, first remove the screws
and the parts for fixation.

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◼This function can effectively clean the dust, mold, oil, and other substances in the heat
exchanger inside the indoor unit, but it cannot be completely removed.
⚫When the air conditioner prompts for cleaning (the accumulated running time is
more than 100 hours), the room temperature display flashes for 15
seconds when the unit is turned on and off.
⚫Operating range：
1Press the button of the remote control when the body is stopped
⚫The "beep" sound means that the freeze cleaning operation is started.
⚫During the freezing and cleaning environment detection stage (30 seconds), the room temperature display flashes
the word . When entering the execution stage, the room temperature display light
loop back and forth.
⚫During the freeze cleaning operation, the body performs the following actions: Freeze cleaning → Air drying
⚫After the freeze wash operation is complete, the room temperature display will show the current temperature.
Press the button again or press the button to turn on the air conditioner function.
The cleaning reminder is set to on by default. If you want to turn off the reminder, you can press and hold the
button on the remote control for 3 seconds while the machine is running. The cleaning reminder is turned off at the "beep"
sound, and you can press it again to turn it back on.
⚫ Turning off the FrostWash function will cause the accumulated running time to return to zero.
Freeze cleaning is not performed under the following conditions………
⚫ Within 60 minutes after the previous freezing cleaning is completed.
⚫ During the environmental detection stage, when the ambient temperature and humidity are not within the
operating range conditions.
⚫ Air conditioner operation requests will interfere with the freeze washing operation. Thus, freeze washing
operations will stop.
Symptoms that may occur when the freeze wash function is executed……
⚫ The longest execution time of freeze cleaning is about 86 minutes (the time may be shorter depending on the
environment). It will automatically swing to the preset angle.
⚫ There will be a 30-second environment detection time before the freeze wash is executed.
Outdoor temperature
2～46℃
Room temperature
10～32℃
Relative humidity
30～85%
HOW TO SET THE FROSTWASH
FROSTWASH
˙
˙
CANCEL
ON/OFF
TURNING ON AND OFF THE CLEANING REMINDER
FROSTWASH
FROSTWASH

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⚫When freezing and washing, please close the doors and windows to avoid condensation, which can cause the water to drop
out of the body.
⚫If the FrostWash function is interrupted while in operation, the drying process may not be completed. It may cause the
inside of the body to be prone to mildew due to moisture. Please perform the FrostWash function when there is sufficient
time and ensure that the function is complete.
⚫When freezing and washing, a layer of white frost will adhere to the surface of the heat exchanger, which is a normal
phenomenon.
⚫During the freezing and cleaning process, the internal temperature of the indoor unit will drop slightly, and mist may be
emitted from the air outlet, which is a normal phenomenon.
⚫In performing freeze cleaning under different environmental conditions (such as high temperature and low humidity), there
may be no frost on the surface of the heat exchanger, which is a normal phenomenon.
⚫If the power is cut-off during the freeze cleaning process, the freeze cleaning will not continue after restoring the power
supply.
⚫During freeze cleaning, the preset wind direction angle will automatically adjust, so there will be a low motor running sound
during the process. Also, the heat exchanger will frost and defrost, which may create a (Crack, crack), (Boom, boom)
sound. It is a normal phenomenon and shall be performed when no one is around.
⚫When performing the FrostWash operation, the unit will create noise due to the pressure change of frosting and defrosting
applied on the system. It is recommended to perform it during the day when no one is asleep or when going out.
⚫FrostWash cannot wash away all the dirt and mold. Please do regular inspection and maintenance at the beginning or end
of six months to one year, or the beginning or end of the season. (Depending on room environment condition).