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MSZ-A-YV Inver ter Heat Pump
R410A Wall Mounted System
The MSZ-A-YV series has been completely redesigned and features the new Catechin filter system. These models also offer industry leading noise levels and have a distinctively styled front panel that not only looks appealing but also helps to make cleaning of the unit easier.
* Auto-Changeover available for MSZ-A09-12YV * Wide swing & long airflow mode available for MSZ-A18-26YV * The air cleaning filter is optional for MSZ-A18-26YV
Technical Infor mation
4.0 (0.9-6.0) 3.5 (1.0-4.1) 3.3 (0.75-5.0) 3.45 (0.95-4.05) 0.76 3.70 / 3.21 A /A
MSZ-A-YV - INDOOR UNITS
CAPACITY (kW) Heating (nominal) Cooling (nominal) Heating (UK) Cooling (UK) SHF (nominal) COP / EER (nominal) ENERGY LABEL AIRFLOW (m3/min) PIPE SIZE mm(in) Heating/Cooling Heating/Cooling - Lo-Mi-Hi Gas Liquid NOISE (dBA) DIMENSIONS (mm) Lo-Mi-Hi Width Depth Height WEIGHT (kg) ELECTRICAL SUPPLY POWER INPUT (kW) (nominal) (UK) STARTING CURRENT (A) RUNNING CURRENT (A) FUSE RATING (BS88) HRC (A)
3.2 (0.9-5.0) 2.5 (0.9-3.2) 2.65 (0.75-4.15) 2.45 (0.85-3.15) 0.79 3.81 / 3.73 A /A 4.1-6.7-9.4 / 3.7-6.0-8.4 9.52 (3/8) 6.35 (1/4) 21-29-9 220-240v, 50Hz 0.035 0.035 3.9 0.17 10
5.9 (0.9-7.8) 5.0 (0.9-5.9) 4.9 (0.75-6.5) 4.95 (0.85-5.85) 0.65 3.41 / 3.21 B /A
6.8 (0.9-8.1) 6.0 (0.9-6.7) 5.65 (0.75-6.75) 5.95 (0.85-6.65) 0.64 3.32 / 3.02 C/B
8.1 (0.9-9.6) 7.1 (0.9-8.3) 6.75 (0.75-8.0) 7.05 (0.85-8.25) 0.63 3.06 / 2.84 D/C 9.4-13.6-17.2 / 9.4-13.3-17.2 15.88 (5/8) 9.52 (3/8) 33-40-16 220-240v, 50Hz 0.069 0.069 0.34 6
5.2-7.9-10.7 / 4.8-7.7-10.5 8.3-11.5-14.2 / 8.3-11.5-14.2 8.7-13.1-17.2 / 8.7-12.8-17.2 9.52 (3/8) 6.35 (1/4) 22-30-10 220-240v, 50Hz 0.04 0.04 5.0 0.12.7 (1/2) 6.35 (1/4) 31-38-16 220-240v, 50Hz 0.06 0.06 0.15.88 (5/8) 6.35 (1/4) 32-40-16 220-240v, 50Hz 0.069 0.069 0.34 6
MUZ-A-YV - OUTDOOR UNITS
NOISE (dBA) WEIGHT (kg) DIMENSIONS (mm) Width Depth Height ELECTRICAL SUPPLY POWER INPUT (kW) Heating/Cooling (nominal) Heating/Cooling (UK) STARTING CURRENT (A) RUNNING CURRENT (A) Heating/Cooling INTERCONNECTING CABLE No. CORES MAX PIPE LENGTH (m) MAX HEIGHT DIFFERENCE (m) CHARGE R410A (kg) - 7m FUSE RATING (BS88) HRC (A)
550 Fed by Indoor Unit 0.805 / 0.635 0.733 / 0.508 3.73 / 3.Core 240v 0.80 -
550 Fed by Indoor Unit 1.04 / 1.05 0.946 / 0.84 4.81 / 4.Core 240v 0.90 -
850 220-240v, 50Hz 1.67 / 1.5 1.52 / 1.2 7.38 7.38 / 6.Core 12v 1.80 20
850 220-240v, 50Hz 1.981 / 1.921 1.803 / 1.537 8.75 8.75 / 8.Core 12v 1.80 25
850 220-240v, 50Hz 2.581 / 2.431 2.349 / 1.945 11.42 11.42 / 10.Core 12v 2.00 25
Notes:The MSZ-A18-26YV indoor units require a 240V 50hz single phase supply and the outdoor units require the same, separate supply. Between the indoor and outdoor units is a 2 core, low voltage interconnecting cable.
INDOOR UNIT MSZ-A09YV and MSZ-A12YV
> Size 9
> Size 12
INDOOR UNIT MSZ-A18YV, MSZ-A24YV and MSZ-A26YV
M Series Range 2004
Since rotating parts and parts which could cause an electric shock are used in this product, be sure to read these Safety Precautions before use. Since the cautionary items shown here are important for safety, be sure to observe them.
Marks and their meanings
WARNING: CAUTION: Incorrect handling could cause a serious hazard, such as death, serious injury, etc. with a high probability. Incorrect handling could cause a serious hazard depending on the conditions.
Meanings of symbols used in this manual
The colour of the sticker affixed to the unit is written in the parentheses. : Be sure not to do. : Be sure to follow the instruction. (Black) (Black) : Never insert your finger or stick, etc. : Never step onto the indoor/outdoor unit and do not put anything on them.
When the air filter is to be removed, do not touch the metal parts of the indoor unit. This may cause an injury. Do not use an insecticide or flammable spray. This may cause a fire or deformation of the cabinet. Do not put a pet or houseplant where it will be exposed to direct airflow. This could injure the pet or plant. Do not leave the unit on an installation stand which is damaged. The unit may fall and this may cause an injury. Do not step onto an unstable bench when maintaining the unit, etc. This may cause an injury, etc. if you fall down. Do not pull the power supply cord. The core wire of the power supply cord may be disconnected and this may cause a fire. Do not charge or disassemble the batteries and do not throw them into a fire. This may result in leakage, fire or an explosion. Do not operate the unit for a long time in high humidity, e.g. leaving a door or window open. In the cooling mode, if the unit is operated in a room with high humidity (80% RH or more) for a long time, water condensed in the air conditioner may drop and wet or damage furniture, etc. Do not operate the unit at low outside temperature (less than -10C) in the cooling mode. In the cooling mode, if the unit is operated at low outside temperature (less than -10C), water condensed in the air conditioner may drop and wet or damage furniture, etc.
(Yellow) : Danger of electric shock. Be careful. (Blue) (Blue) : Be sure to disconnect the power supply plug from the power outlet. : Be sure to shut off the power.
After reading this manual, keep it together with the installation manual in a handy place for easy reference. Warning mark positions
FRONT PANEL ENCLOSURE
Do not use the unit for special purposes. Do not use this air conditioner to preserve precision devices, food, animals, plants and art objects. This may cause deterioration of quality, etc. Do not put a stove, etc. where they are exposed to direct airflow. This may cause imperfect combustion. When the unit is to be cleaned, switch it off and disconnect the power supply plug or turn off the breaker. Since the fan rotates at high speed during operation, this may cause an injury. When the unit is not going to be used for a long time, disconnect the power supply plug or turn off the breaker. Otherwise, dirt may collect and this may cause a fire. Replace the 2 batteries with new ones of same type. Using an old battery together with a new one may result in heat generation, leakage or an explosion. If liquid from the batteries gets onto your skin or clothes, wash it well with clean water. If liquid from the batteries gets into your eyes, wash them well with clean water and consult a doctor at once. Ventilate well in using the unit with a stove, etc. An oxygen shortage may occur. Do not operate switches with wet hands. This may cause an electric shock. Do not clean the air conditioner with water. Water may enter the unit and degrade the insulation. This may cause an electric shock. Do not step or put anything on the indoor/outdoor unit. This may cause an injury, etc. if you or something falls down.
NAME OF EACH PART
Front panel Air cleaning filter (White bellows type) Heat exchanger to Breaker Catechin air filter (With deodorizer) Air inlet
Power supply cord Fan guard Remote control receiving section
Air outlet Vertical vane Fan Horizontal vane Remote controller
Operation section (When the front panel is opened)
Consult your dealer for installation of the air conditioner.
Emergency operation switch
Operation Indicator lamp
Remote control receiving section
Do not install the unit where flammable gas could leak. If gas leaks and collects around the unit, it may cause an explosion. Earth the unit. Do not connect the earth to a gas pipe, water pipe, lightning rod or the earth of a telephone. If the earthing is incorrect, it may cause an electric shock. Install an earth leakage breaker depending on the place where the air conditioner is to be installed (humid places, etc.). If the earth leakage breaker is not installed, it may cause an electric shock. Drain should be fully drained. If the drainage route is incomplete, water may drop from the unit. This may wet and damage the furniture.
Air inlet (back and side)
Signal transmitting section
PREPARATION BEFORE OPERATION
Auto restart function
These models are equipped with an auto restart function. If you do not want to use this function, please consult the service representative because the setting of the unit needs to be changed.
Operation display section
Auto restart function is. When the indoor unit is controlled with the remote controller, the operation mode, the set temperature and the fan speed are stored in the memory. If a power failure occurs or the main power is turned off during operation, Auto restart function sets automatically to start operating in the same mode as the one set with the remote controller just before the shutoff of the main power. (Refer to page 6 for details.)
ON/OFF (operate/ stop) button
TOO ON/OFF WARM
Insert the power supply plug into the power outlet and/or turn the breaker on.
WARNING: Remove dirt from the power supply plug and insert the plug securely. If dirt adheres to the plug or insertion is incomplete, it may cause a fire or an electric shock. Open the front lid.
(This diagram shows an overall view.)
Fan speed control button
I FEEL HEAT AUTO
Operation select button
ECONO COOL button RESET button
HR.button MIN.button (Time set buttons) CLOCK set button Vane control button
How to set the batteries and the current time
Handling of the remote controller The range that the signal can reach is about 6 m when the remote controller is pointed at the front of the indoor unit. When a button is pressed, one or two beeps will be heard from the indoor unit. If no sound is heard, operate again. Use the remote controller carefully. If it is dropped, thrown or it gets wet, the remote controller may not operate. When installing on a wall, etc. Install the remote controller holder in a position where the signal reception sound (beep) can be heard from the indoor unit when the ON/OFF button is pressed. How to install/remove the remote controller Installing :Insert the remote controller downward. Removing :Pull it up.
When the remote controller cannot be used (emergency operation)
When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation can be done using the EMERGENCY OPERATION switch.
Remove the front lid and insert batteries. Then reattach the front lid.
Insert the minus pole of the batteries first. Check if the polarity of the batteries is correct.
Press the EMERGENCY OPERATION switch.
Insert the minus pole of the batteries first.
Each time the EMERGENCY OPERATION switch is pressed, the unit will operate in order of EMERGENCY COOL MODE, EMERGENCY HEAT MODE and STOP MODE. However, when the EMERGENCY OPERATION switch is once pressed, the unit will operate in test run for 30 minutes and then the operation mode shifts to EMERGENCY MODE.
To stop the emergency operation, press the EMERGENCY OPERATION switch once (in case of EMERGENCY HEAT MODE) or twice (in case of EMERGENCY COOL MODE).
Press the RESET button.
Press using a thin stick.
Remote controller holder
If the RESET button is not pressed, the remote controller may not operate correctly.
Press the CLOCK set button.
Press the and buttons (TIME SET buttons) to set the current time.
STOP START HR. MIN.
MODE ECONO COOL
Dry-cell batteries I Reference for replacing batteries Replace the batteries with new AAA alkaline batteries in the following cases: When the indoor unit does not respond to the remote control signal. When the display on the remote controller becomes dim. When a button of the remote controller is pressed, all displays appear on the screen, and then disappear immediately. Do not use manganese batteries. The remote controller could malfunction. The service life of an alkaline battery is about 1 year. However, a battery whose time limit is approaching may be exhausted soon. The recommended usable time limit is indicated (month/year) on the bottom of the battery. To prevent liquid leakage, take out all batteries when the remote controller is not going to be used for a long time. CAUTION: If liquid from the batteries gets onto your skin or clothes, wash it well with clean water. If liquid from the batteries gets into your eyes, wash them well with clean water and consult a doctor at once. Do not use rechargeable batteries. Replace the 2 batteries with new ones of the same type. Dispose of exhausted batteries in the correct manner.
Details of EMERGENCY MODE are as shown below. However, the temperature control does not work for 30 minutes in test run and the unit is set to continuous operation. The fan speed is set to High in test run and shifts to Medium after 30 minutes. Operation mode Set temperature Fan speed Horizontal vane COOL 24C Medium Auto HEAT 24C Medium Auto
The operation mode is indicated by the Operation Indicator lamp on the indoor unit as following figure. Operation Indicator lamp
Each time the button is pressed, the set time MIN. increases by 1 hour, and each time the button is pressed, the set time increases by 1 minute.
Press the CLOCK set button again and close the front lid.
I FEEL. AUTO OPERATION
With the (I FEEL.) auto operation mode, the optimum room condition can be set automatically with a one-touch operation.
Description of I FEEL. mode
Details of operation
To start operation:
When the (I FEEL.) mode is selected, the air conditioner is automatically controlled at the optimum temperature.
According to the room temperature when the operation starts, the operation mode is automatically set to COOL, DRY or HEAT. However, when operation is started again within 2 hours after it is stopped, the same operation mode before the operation is stopped is selected. The operation mode selected first is not changed even if the room temperature changes. If the operation mode does not match the room condition, select the appropriate operation mode by pressing the MODE button.
To stop operation:
Details of auto operation
Room temperature when started About 25C or higher About 25C to 23C About 23C or lower Operation mode COOL DRY HEAT Target temperature (initial state) About 24C About 26C
When (I FEEL.) is not selected, press the button until it is set.
Each time the button is pressed, the operation mode is changed in sequence: (I FEEL.) (AUTO) (COOL) (DRY) (HEAT)
Description of AUTO RESTART FUNCTION
These units are equipped with an auto restart function. When the main power is turned on, the air conditioner will start operation automatically in the same mode as the one set with the remote controller before the shutoff of the main power. If the unit was set to off with the remote controller before the shutoff of the main power, it will remain stopped even after the main power is turned on. If the unit was in the emergency operation before the shutoff of the main power, it will start operation, when main power comes on, in the same mode as the one set with the remote controller before the emergency operation. If the unit is operated in I FEEL. or AUTO mode before power failure, the operation mode (COOL, DRY or HEAT) is not stored in the memory. When the main power is turned on, the unit decides the operation mode by the initial room temperature at restart and starts operation again.
If you feel slightly warm:
button to lower the temperature.
One press lowers the temperature by about 1C.
If you feel slightly cool:
button to raise the temperature.
One press raises the temperature by about 1C.
NOTE: COOL: When the room temperature is 2C higher than the set temperature, the set temperature may not be changed since the air conditioner is operating to reach the target (set) temperature. In this case, please wait until the room temperature drops to within 2C of the set temperature and then change the set temperature. HEAT: When the room temperature is 2C lower than the set temperature, the set temperature may not be changed since the air conditioner is operating to reach the target (set) temperature. In this case, please wait until the room temperature rises to within 2C of the set temperature and then change the set temperature.
Details of display on the indoor unit
VANE START HR. MIN
The operation indicator at the right side of the indoor unit indicates the operation state. Operation Indicator
Lighted Blinking Not lighted
Operation indicator lamp
Indication Operation state This shows that the air conditioner is operating to reach the target temperature. Please wait until the target temperature is obtained. This shows that the room temperature is approaching the target temperature. (In case of outdoor unit MXZ series only) This shows a state of standby for operation. Please refer to Information for multi system air conditioner. (Page 7) Difference between target temperature and room temperature About 2C or more
About 2C or less
AUTO CHANGEOVER. AUTO MODE OPERATION
An automatic cooling and heating changeover operation system ensures easy control and year-round air conditioning. Once the desired temperature is set, unit operation is switched automatically between cooling and heating according to the room temperature. In addition, fan control of the outdoor unit enables cooling operation at outside temperature as low as -10 C.
MANUAL OPERATION (COOL, DRY, HEAT)
To select the COOL, DRY or HEAT mode:
Select the operation mode by pressing the
To select the AUTO mode:
Each time this button is pressed, the operation mode is changed in sequence: (I FEEL.) (AUTO) (COOL) (DRY) (HEAT)
Press the Select the
button. (AUTO) mode by pressing the
FAN STOP START HR. MIN.
Each time this button is pressed, the operation mode is changed in sequence: (I FEEL.) (AUTO) (COOL) (DRY) (HEAT) The set temperature is also displayed on the remote controller.
After the operation mode is set once, the operation starts in the same mode as the one set previously from the next time by simply pressing the button.
When the set temperature is to be changed:
button to lower the temperature. One press lowers the temperature by about 1C. button to raise the temperature. One press raises the temperature by about 1C.
Description of AUTO CHANGEOVER
(1) Initial mode 1 When unit starts the operation with AUTO operation from off; If the room temperature is higher than the set temperature, operation starts in COOL mode. If the room temperature is equal to or lower than the set temperature, operation starts in HEAT mode. (2) Mode change 1 COOL mode changes to HEAT mode when 15 minutes have passed with the room temperature 2 degrees below the set temperature. 2 HEAT mode changes to COOL mode when 15 minutes have passed with the room temperature 2 degrees above the set temperature. NOTE: If two or more indoor units are operating in multi system, there might be a case that the indoor unit, which is operating in (AUTO), cannot change over to the other operating mode (COOLHEAT) and becomes a state of standby. Refer to the detailed information for multi system air conditioner explained on the right.
NOTE: When the ambient temperature is too high, the room temperature may not reach the set temperature since the unit operates to cool the room under a high load.
Refer to page 6.
In COOL operation When the outside temperature is low, the fan of the outdoor unit turns on and off frequently to maintain sufficient cooling capacity. In DRY operation The temperature control (temperature setting) cannot be done. The room temperature is slightly lowered in this operation mode.
The details of the display on the indoor unit are explained on page 6.
Information for multi system air conditioner (Outdoor unit: MXZ series)
Multi system air conditioner (Outdoor unit: MXZ series) can connect two or more indoor units with one outdoor unit. According to the capacity, two or more units can operate simultaneously. When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that will start the operation later cannot operate, indicating an operation state. (Refer to the table of Operation Indicator lamp on page 6.) In this case, please set all the indoor units to the same operation mode. When indoor unit starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes (max. 10 minutes) to blow out the warm air. In the heating operation, the indoor unit that does not operate may get warm or the sound of refrigerant flowing may be heard. This is not a malfunction since the refrigerant continuously flows into the indoor unit that does not operate.
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT
AIR FLOW velocity and direction can be selected as required.
ECONO COOL OPERATION
Use this operation when you want to be comfortable in COOL mode even with energy saved.
To change the AIR FLOW velocity, press the
Each time the button is pressed, the fan speed is changed in sequence: (Low) (Med.) (High) (AUTO)
Perform the following operations while the unit is operating in the MANUAL COOL mode.
Use the (High) notch to cool/heat the room more. If the operating sound of the air conditioner disturbs your sleep, use the (Low) notch.
To change the AIR FLOW blowing direction vertically, press the VANE button.
Each time the button is pressed, the angle of the horizontal vane is changed in sequence: (1) (2) (3) (4) (5) (SWING) (AUTO)
When the (ECONO COOL) operation is selected in COOL mode, the air conditioner performs swing operation in various cycle according to the temperature of air conditioner. Also SET TEMPERATURE is automatically set 2C higher than in COOL mode.
To release the ECONO COOL operation:
START HR. MIN.
SWING OPERATION Use the swing operation for the air flow to reach all corners of the room. Recommended horizontal vane range Use the (AUTO) position usually. Use position (1) or (2) in the COOL or DRY mode and use positions (3) to (5) in the HEAT mode when adjusting to your requirements.
What is ECONO COOL? Swing air flow (change of air flow) makes you feel cooler than constant air flow. So, even though the set temperature is automatically set 2C higher, it is possible to perform cooling operation with keeping comfort. As a result, energy can be saved.
NOTE: In the cooling operation, when the air conditioner is operated with setting the horizontal vane to (4) or (5) for 1 hour, the AIR FLOW direction is automatically set to horizontal to prevent condensed water from dropping. Adjust the vertical AIR FLOW direction using the remote controller. If the horizontal vane is moved manually, it may cause trouble. In the heating operation, if the air flow temperature is too low or when defrosting is being done, the horizontal vane position is set to (1).
TIMER OPERATION (ON/OFF TIMER)
It is convenient to set the timer when you go to bed, when you get home, when you get up, etc.
How to set the ON timer
button during operation.
Each time the button is pressed, the ON timer mode alternates between ON and OFF.
Auto air flow direction control operation
When the AUTO mode is selected with the button, the position of the horizontal vane is automatically set to correspond to the operation mode for effective operation. (1) HEAT When the air flow temperature is too low, the air is blown out horizontally. When the air flow temperature rises, the air is blown out downwards. (2) COOL, DRY The air is blown out horizontally. NOTE: When the operation mode changes in (AUTO) mode, the horizontal vane is automatically changed to the position in each mode.
To change the horizontal direction of the air flow, move the vertical vane manually.
Set the time of the timer using the MIN. buttons.
Each time the button is pressed, the set time inMIN. creases by 1 hour; each time the button is pressed, the set time increases by 10 minutes.
To release the ON timer:
Adjust the vane before operation starts. Since the horizontal vane moves automatically, your fingers may be caught.
Programming timer operation The ON timer and the OFF timer can be used in combination. The timer of the set time that is reached first will operate first. ( mark indicates the order of timer operations.) If the current time has not been set, the timer operation cannot be used. NOTE: If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting is cancelled. As these models are equipped with an auto restart function, the air conditioner starts operating with timer cancelled at the same time that power is restored.
When the button is pressed or the operation mode is changed during the ECONO COOL operation, ECONO COOL operation is released. The button, the are available.
button and ON/OFF timer (explained below)
How to set the OFF timer
Each time the button is pressed, the OFF timer mode alternates between ON and OFF.
To release the OFF timer:
WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME
When it is not going to be used for a long time: When the air conditioner is to be used again:
CLEANING THE FRONT PANEL, HEAT EXCHANGER AND FAN
Front panel Heat exchanger
Perform the FAN operation for 3 or 4 hours to dry the inside of the air conditioner.
To perform FAN operation, set the remote controller to the highest temperature in the MANUAL COOL mode. (Refer to page 7.)
Hold both ends of the front panel, lift the panel up until its level, and then pull it towards you. 1 Pull 3 Insert
Hinge Heat exchanger
Clean the air filter and install it in the indoor unit.
(Refer to page 10 for cleaning instructions.)
Turn off the breaker and/or disconnect the power supply plug.
Check that the air inlet and outlet of the indoor/outdoor units are not blocked with any obstacles. Check that the earth is connected correctly.
CAUTION: Turn off the breaker or disconnect the power supply plug when the air conditioner is not going to be used for a long time. Dirt may collect and this may cause a fire.
Remove the batteries from the remote controller.
CAUTION: Earth the unit. Do not connect the earth to a gas pipe, water pipe, lightning rod or the earth of a telephone. If the earthing is incorrect, it may cause an electric shock.
CAUTION: Do not drop the front panel or pull it out forcibly. The panel may be damaged. Do not step onto an unstable bench when removing or installing the front panel. This may cause an injury, etc. if you fall down.
You can sweep the surface of heat exchanger if you install the special-made brush to your vacuum cleaner. Please refer to the instructions described in Quick Clean Kit for details. WARNING: Do not touch the heat exchanger directly with your hands. Otherwise you may get injured. (Its recommended to protect your hands with a pair of gloves.) CAUTION: Do not step onto an unstable bench when cleaning. Otherwise you may fall down and get injured. Use only the special-made brush listed below. Do not use other stuffs. Otherwise the heat exchanger of the indoor unit may get damaged. Optional product Name of parts Parts number Quick Clean Kit MAC-093SS-E
CAUTION: To prevent liquid leakage, take out all batteries when the remote controller is not going to be used for a long time.
Before starting maintenance Cleaning the indoor unit
Wipe the front panel with a soft dry cloth or wash it with water. After washing the panel, wipe up the remaining water with a soft dry cloth and let it dry out of direct sunlight.
If the dirt is noticeable, wipe the front panel with a cloth soaked in a solution of mild detergent diluted in lukewarm water. Do not use gasoline, benzine, thinner, polishing powder, or insecticide and do not wash the front panel with a scrubbing brush or the hard surface of a sponge. Do not soak the front panel in water/lukewarm water longer than two hours and do not expose the panel to direct sunlight, heat, or flames when drying it. The panel may be deformed or discolored.
Clean the unit using a soft dry cloth.
If the dirt is noticeable, wipe the unit with a cloth soaked in a solution of mild detergent diluted in lukewarm water. Do not use gasoline, benzine, polishing powder, or insecticide. The unit may be damaged. The front panel may come off if it is lifted up past its level position. If the front panel comes off, refer to step 3 in CLEANING THE FRONT PANEL explained on the right.
Optional product is available from your local dealer. NOTE: Only available for the hose diameter of vacuum cleaner : 32 - 39 mm (inside diameter).
CAUTION: When the unit is to be cleaned, switch it off and disconnect the power supply plug or turn off the breaker. Since the fan rotates at high speed during operation, it may cause an injury.
Refer to page 11 for cleaning the fan.
Hold both ends of the front panel, keep the panel level, and insert the hinges into the holes on the upper part of the indoor unit until they click into place. (1) Then, close the front panel securely. (2)
Keep the panel level and insert the hinges into the holes.
Switch the indoor unit off with the remote controller and disconnect the power supply plug and/or turn off the breaker, otherwise you may get injured since the fan of the indoor unit rotates at high speed during operation.
Clean the air outlet and fan of the indoor unit. (Make sure the fan has stopped.)
Manually tilt the horizontal vanes downward, and make sure the fan has stopped.
Be careful not to injure your hands. If the air outlet or fan is dirty, moldy, or dusty, clean with a wet or dry soft cloth or with a special-made brush which is installed to a vacuum cleaner. If the dirt is noticeable around the air outlet, clean with a cloth soaked in a solution of mild detergent diluted in lukewarm water.
Put the vertical vanes back to their original positions one by one.
1 Hold the green tab of each vertical vane and insert
the vertical vanes into their respective grooves.
2 Push each vertical vane until it clicks into place.
Remove the horizontal vanes. Be sure to hold each horizontal vane when unlocking the stoppers.
Upper vane Follow procedures 1 to 3 to remove the upper vane.
Pull out. Out.
Lock. Unlock. Upper left
Be sure to hold the green tabs to install the vertical vanes, otherwise the vanes can be damaged. Do not use excessive force to the fan guard during this procedure. The fan guard may be deformed and the vanes may not work properly. Put the vertical vanes back correctly to their original positions. Otherwise, condensed water may drip down from the indoor unit or the horizontal vanes could malfunction.
Upper vane Lower vane
Install the horizontal vanes. (Reverse the removal procedures.)
Insert this end first.
Lower vane Follow procedures 4 to 6 to remove the lower vane.
Lock. Unlock. Lower left
The holes on the insertion ends of the upper and lower horizontal vanes have different shapes.
Swing the vertical vanes out one by one.
1 Grab the green tab of each vertical vane and pull
it towards you to swing out each vertical vane.
2 Hold the green tab of each vertical vane and move
the vertical vanes in the directions of the arrows. The vanes cannot be removed.
Cannot be removed.
In procedures 2 , 3 , 5 , and 6 , lock the stoppers until they click into place.
Fan guard Green tab Pull towards you. Swing to the left. Swing to the right.
WHEN YOU THINK THAT TROUBLE HAS OCCURRED
Question Answer (not a malfunction) Question Answer (not a malfunction) The air conditioner cannot This protects the air conditioner according to instructions from the microprocessor. Please wait. be operated for about 3 minutes when restarted. Cracking sound is heard. This sound is generated by the expansion/contraction of the front panel, etc. due to change in temperature. When the air conditioner is operated in COOL The air flow direction or DRY mode, if the operation continues with air changes during operation. blowing down for 1 hour, the direction of the air The direction of the horiflow is automatically set to horizontal to prevent zontal vane cannot be adcondensed water from dropping. justed with the remote con In the heating operation, if the air flow temperatroller. ture is too low or when defrosting is being done, the horizontal vane position is automatically set to horizontal. Water leaks from the out- During COOL and DRY operations, pipe or pipe connecting sections are cooled and this causes door unit. water to condense. In the heating operation, the defrosting operation makes water frozen on the outdoor unit melt and drip down. In the heating operation, water condensed on the heat exchanger drips down. White smoke is discharged In the heating operation, vapor generated by the defrosting operation looks like white smoke. from the outdoor unit. Air does not blow out soon Please wait as the air conditioner is preparing to blow out warm air. in the heating operation. The operation is stopped Defrosting of the outdoor unit is being done (Defrosting operation). for about 10 minutes in the Since this is completed in 10 minutes, please heating operation. wait. (When the external temperature is too low and humidity is too high, frost is formed.) Hissing sound is some- This is the sound when the flow of refrigerant inside the air conditioner is switched. times heard. The room cannot be heated When the outside air temperature is low, the heating effect may not be sufficient. sufficiently. In a multi-unit system, the A small amount of refrigerant continues to flow into the indoor unit even though it is not operatindoor unit which is not oping. erating becomes warm and a sound, similar to water flowing, is heard from the unit. The air conditioner starts These models are equipped with an auto restart function. When the main power is turned off withthe operation only with the out stopping the air conditioner with the remote main power turned on, controller and is turned on again, the air condithough you do not operate tioner will start operation automatically in the the unit with the remote same mode as the one set with the remote concontroller. troller just before the shutoff of the main power.
Avoid installing the air conditioner in the following places. Where flammable gas could leak. CAUTION: Do not install the unit where flammable gas could leak. If gas leaks and collects around the unit, it may cause an explosion. Where there is much machine oil. Salty places such as the seaside. Where sulfide gas is generated such as a hot spring. Where oil is splashed or where the area is filled with oily smoke. Where there is high-frequency or wireless equipment.
To prevent the effects of a fluorescent lamp, keep as far apart as possible. Inverter-type fluorescent lamp The installation location of the outdoor unit should be at least 3 m away from the antennas for TV sets, radios, etc. In areas where the reception is weak, provide greater space between the outdoor unit and the antenna of the affected device if operation of the air conditioner interferes with radio or TV reception. wall, etc. Wellventilated dry place
Keep a space to prevent the picture distortion or the noise. 1m or more Cordless phone or Portable phone Radio 1m or more TV
CAUTION: Earth the unit. Do not connect the earth to a gas pipe, water pipe, lightning rod or the earth of a telephone. If the earthing is incorrect, it may cause an electric shock. Install an earth leakage breaker depending on the place where the air conditioner is to be installed (humid places, etc.). If the earth leakage breaker is not installed, it may cause an electric shock.
100 mm or more 200 mm or more
Inspection and maintenance
When the air conditioner is used for several seasons, the capacity may be lowered due to dirt inside the unit. Depending on the condition, an odor may be generated or dehumidified water may not drain out smoothly due to dirt, dust, etc. It is recommended that the unit be inspected and maintained (charged) by specialist in addition to normal maintenance. Consult your dealer.
3m or more
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.
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