DAIKIN FFQ25BV1B Split System Air Conditioner User Manual

OPERATION MANUAL
SPLIT SYSTEM
Air Conditioner
MODELS
(Ceiling-mounted Multi flow Cassette type)
FFQ25BV1B
FFQ35BV1B
FFQ50BV1B
FFQ60BV1B

Thank you for purchasing this Daikin air conditioner. Carefully read this operation manual before using the air conditioner. It will tell you how to use the unit properly and help you if any trouble occurs. After reading the manual, file it away for future reference.

WHAT TO DO BEFORE OPERATION

This operation manual is for the following systems with standard control. Before initiating the operation, contact your Daikin dealer for the operation that corresponds to your system. • Pair system

NOTE

• If the unit you purchased is controlled by a wireless remote controller, also refer to the wireless remote controller’s operation manual.
  If your installation has a customized control system, ask your Daikin dealer for an operation that corresponds to your system.

• Heat pump type
  This system provides cooling, heating, automatic, program dry, and fan operation modes.

• Cooling only type
  This system provides cooling, program dry, and fan operation modes.

PRECAUTIONS FOR GROUP CONTROL SYSTEM OR TWO REMOTE CONTROLLER CONTROL SYSTEM

This system provides two other control systems besides individual control (one remote controller controls one indoor unit) system. Confirm the following if your unit is of the following control system type.

• Group control system One remote controller controls up to 16 indoor units.
  All indoor units are equally set.

• Two remote controllers control the system
  Two remote controllers control one indoor unit (In the case of the group control system, one group of indoor units)
  The unit is individually operated.

NOTE

• Contact your Daikin dealer in case of changing the combination or set of group control and two remote controllers control systems.

Names and functions of parts
Refer to figure 2 on page [1]

•   The external appearance of the outdoor unit varies depending on its capacity class. The outdoor unit shown in the figure is for reference to indicate features. Contact your Daikin Dealer and verify which outdoor unit you have.

c

| Remote controller
Depending on the system configuration, the remote controller is not provided.
d| Inlet air
e| Discharged air
f| Air outlet
g| Airflow flap (at air outlet)
h| Refrigerant piping, connection electric wire
i| Drainpipe
j| Air inlet
The built-in air filter removes dust and dirt.
k| Drain pumping out device (built-in) Drains water removed from the room during cooling.
l| Ground wire Wire to the ground from the outdoor unit to prevent electrical shocks.

SAFETY PRECAUTIONS

To gain full advantage of the air conditioner’s functions and to avoid malfunction due to mishandling, we recommend that you read this instruction manual carefully before use. This air conditioner is classified under “appliances not accessible to the general public”.

• The precautions described herein are classified as WARNING and CAUTION. They both contain important information regarding safety. Be sure to observe all precautions without fail.

WARNING …Failure to follow these instructions properly may result in personal injury or loss of life.

CAUTION ….Failure to observe these instructions properly may result in property damage or personal injury, which may be serious depending on the circumstances.

• After reading, keep this manual in a convenient place so that you can refer to it whenever necessary. If the equipment is transferred to a new user, be sure also to hand over the manual.

WARNING Be aware that prolonged, direct exposure to cool or warm air from the air conditioner, or to air that is too cool or too warm can be harmful to your physical condition and health.

When the air conditioner is malfunctioning (giving off a burning odor, etc.) turn off power to the unit and contact your local dealer.
Continued operation under such circumstances may result in failure, electric shocks, or fire hazards.

Consult your local dealer about installation work.
Doing the work yourself may result in water leakage, electric shocks, or fire hazards.

Consult your local dealer regarding modification, repair, and maintenance of the air conditioner.
Improper workmanship may result in water leakage, electric shocks, or fire hazards. Do not place objects, including rods, your fingers, etc., in the air inlet or outlet. Injury may result due to contact with the air conditioner’s highspeed fan blades. Beware of fire in case of refrigerant leakage. If the air conditioner is not operating correctly, i.e. not generating cool or warm air, refrigerant leakage could be the cause. Consult your dealer for assistance. The refrigerant within the air conditioner is safe and normally does not leak.

However, in the event of a leakage, contact with a naked burner, heater, or cooker may result in the generation of noxious gas.
Do no longer use the air conditioner until a qual­ified service person confirms that the leakage has been repaired.

Consult your local dealer regarding what to do in case of refrigerant leakage.
When the air conditioner is to be installed in a small room, it is necessary to take proper mea­sures so that the amount of any leaked refriger­ant does not exceed the concentration limit in the event of a leakage. Otherwise, this may lead to an accident due to oxygen depletion.

Contact professional personnel about the attach­ ment of accessories and be sure to use only accessories specified by the manufacturer.
If a defect results from your own workmanship, it may result in water leaks, electric shock, or fire.

Consult your local dealer regarding reloca­ tion and reinstallation of the air conditioner. Improper installation work may result in leakage, electric shocks, or fire hazards.
Be sure to use fuses with the correct ampere reading.
Do not use improper fuses, copper or other wires as a substitute, as this may result in electric shock, fire, injury or damage to the unit.

Be sure to earth the unit.
Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect earthing may result in electric shocks or fire. A high surge current from lightning or other sources may cause damage to the air condi­tioner.

Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shocks or fire.

Consult the dealer if the air conditioner sub­ merges owing to a natural disaster, such as a flood or typhoon.
Do not operate the air conditioner in that case, or otherwise, a malfunction, electric shock, or fire may result.

Do not start or stop operating the air condi­ tioner with the power supply breaker turned ON or OFF.
Otherwise, fire or water leakage may result. Fur­thermore, the fan will rotate abruptly if power fail­ure compensation is enabled, which may result in injury.

Do not use the product in an atmosphere contaminated with oil vapor, such as cooking oil or machine oil vapor.
Oil vapor may cause crack damage, electric shocks, or fire.

Do not use the product in places with exces­ sive oily smoke, such as cooking rooms, or in places with flammable gas, corrosive gas, or metal dust.
Using the product in such places may cause fire or product failures.

Do not use flammable materials (e.g., hair­ spray or insecticide) near the product.
Do not clean the product with organic sol­ vents such as paint thinner.
The use of organic solvents may cause crack damage to the product, electric shocks, or fire.

Be sure to use a dedicated power supply for the air conditioner.
The use of any other power supply may cause heat generation, fire, or product failures.

CAUTION

Do not use the air conditioner for purposes other than those for which it is intended. Do not use the air conditioner for cooling precision instruments, food, plants, animals, or works of art as this may adversely affect the perfor­mance, quality, and/or longevity of the object concerned.
Do not remove the outdoor unit’s fan guard. The guard protects against the unit’s high-speed fan, which may cause injury.

Do not place objects that are susceptible to moisture directly beneath the indoor or out­door units.
Under certain conditions, condensation on the main unit or refrigerant pipes, air filter dirt or drain blockage may cause dripping, resulting in fouling or failure of the object concerned.

To avoid oxygen depletion, ensure that the room is adequately ventilated if equipment such as a burner is used together with the air conditioner.
After prolonged use, check the unit stand and its mounts for damage.
If left in a damaged condition, the unit may fall and cause injury.

Do not place flammable sprays or operate spray containers near the unit as this may result in fire.
Before cleaning, be sure to stop unit opera­tion, turn the breaker off, or remove the power cord.
Otherwise, an electric shock and injury may result.

To avoid electric shocks, do not operate with wet hands.
Do not place appliances that produce naked flames in places exposed to the airflow from the unit as this may impair the combustion of the burner.
Do not place heaters directly below the unit, as the resulting heat can cause deformation.

Do not allow a child to mount on the outdoor unit or avoid placing any object on it.
Falling or tumbling may result in injury.

Do not block air inlets or outlets.
Impaired airflow may result in insufficient perfor­mance or trouble.

Be sure that children, plants, or animals are not exposed directly to airflow from the unit, as adverse effects may ensue.
Do not wash the air conditioner with water, as this may result in electric shocks or fire.
Do not install the air conditioner at any place where there is a danger of flammable gas leakage.
In the event of gas leakage, the build-up of gas near the air conditioner may result in fire haz­ards.

Do not put flammable containers, such as spray cans, within 1 m from the blow-off mouth.
The containers may explode because the warm air output of the indoor or outdoor unit will affect them.

Arrange the drain hose to ensure smooth drainage.
Imperfect drainage may cause wetting.

The appliance is not intended for use by unattended young children or infirm per­ sons.
Impairment of bodily functions and harm to health may result.

Children should be supervised to ensure that they do not play with the unit or its remote controller.
Accidental operation by a child may result in impairment of bodily functions and harm to health.

Do not let children play on or around the out­ door unit.
If they touch the unit carelessly, an injury may be caused.

Consult your dealer regarding cleaning the inside of the air conditioner.
Improper cleaning may cause breakage of plas­tic parts, water leakage, and other damage as well as electric shocks.

To avoid injury, do not touch the air inlet or aluminum fins of the unit.
Do not place objects in direct proximity of the outdoor unit and do not let leaves and other debris accumulate around the unit.
Leaves are a hotbed for small animals which can enter the unit. Once in the unit, such animals can cause malfunctions, smoke, or fire when making contact with electrical parts.

Never touch the internal parts of the control- le r.
Do not remove the front panel. Touching certain internal parts will cause electric shocks and damage to the unit. Please consult your dealer about checking and adjustment of internal parts.

Do not leave the remote controller wherever there is a risk of wetting.
If water gets into the remote controller there is a risk of electrical leakage and damage to elec­tronic components.

Watch your steps at the time of air filter cleaning or inspection.
High-place work is required, to which utmost attention must be paid.
If the scaffold is unstable, you may fall or topple down, thus causing injury.

OPERATION RANGE

If the temperature or the humidity is beyond the fol­lowing conditions, safety devices may work and the air conditioner may not operate, or sometimes, water may drip from the indoor unit.

COOLING

RKS25 • 35 •
50 .60
RXS25 .35 .
50 .60| DB| 21 to 32| 80% or below| DB| -10 to 46 (–5)
WB| 14 to 23
RMXS112. 140.
160
RMKS112. 140.
160
3MKS58 .75
4MKS90
3MXS52 . 68
4MXS80|

DB

| 21 to 32| 80% or below| 103| -10 to 46
WB| 14 to 23

HEATING

RMXS112. 140.
160
3MXS52. 68
4MXS80| DB| 10 to 30| DB| -14 to 21
WB| -15 to 15.5

DB: Dry bulb temperature (°C)
WB: Wet-bulb temperature (°C)

The setting temperature range of the remote con­troller is 16°C to 32°C.
The numerical value in parenthesis shows the operation range of the model for Australia.

■ Tips for saving energy

• Be careful not to cool (heat) the room too much. Keeping the temperature setting at a moderate level helps save energy.
• Cover windows with a blind or a curtain.

Blocking sunlight and air from outdoors increases the cooling (heating) effect.

Recommended temperature setting

For cooling| 26 to 28 °C
For heating| 20 to 24 °C

INSTALLATION SITE

Regarding places for installation

• Is the air conditioner installed at a well-venti­ lated place where there are no obstacles around?
• Do not use the air conditioner in the following

1. Filled with much mineral oil such as cutting oil
2. Where there is much salt such as a beach area
3. Where sulfured gas exists such as a hot-spring
4. Where there are considerable voltage fluctuations such as in a factory or plant
5. Vehicles and vessels
6. Where there is much spray of oil and vapor such as cookery, etc.
7. Where there are machines generating electromagnetic waves.
8. Filled with acid and/or alkaline steam or vapor

• Is a snow protection measure taken?

For details, consult your dealer.

Regarding wiring

• All wiring must be performed by an autho­ rized electrician. To do wiring, ask your dealer. Never do it by
• Make sure that a separate power supply circuit is provided for this air conditioner and that all electrical work is carried out by qualified per sonnel according to local laws and regulations.

Pay attention to running noises, too

• Are the following places selected?

1. A place that can sufficiently withstand the weight of the air conditioner with less running noises and vibrations.
2. A place where the hot wind discharged from the air outlet of the outdoor unit and the running

• Are you sure that there are no obstacles near the air outlet of the outdoor unit?

Such obstacles may result in declined perfor­mance and increased running noises.

• If abnormal noises occur in use, stop the operation of the air conditioner, and then con­sult your dealer or our service station.

Regarding drainage of drain piping

• Is the drain piping executed to perform com­ plete drainage?

If proper drainage is not carried out from the out­door drain pipes during air-conditioning opera­tion, chances are that dust and dirt are clogged in the pipe. This may result in water leakage from the indoor unit. Under such circumstances, stop the operation of the air conditioner, and then con-suit your dealer or our service station.

NAME AND FUNCTION OF EACH SWITCH AND DISPLAY ON THE REMOTE CONTROLLER

Refer to figure 1 on page [1]

The illustrations in this operating manual correspond to the remote control format BRC1C type.

Press the button and the system will start. Press the button again and the system will stop.
2| OPERATION LAMP (RED)
The lamp lights up during operation.
3| DISPLAY (UNDER CENTRAL IZED CONTROL)
When this display shows, the system is UNDER CENTRALIZED CONTROL. (This is not a standard specification)
4| DISPLAY (VENTILATION/AIR CLEANING)
This display shows that the total heat exchange and the air cleaning unit are in operation (These are optional accessories).
5| DISPLAY (OPERATION MODE)
This display shows the current OPERATION MODE. For cooling only type, (Auto) and (Heating) is not installed.
6| *DISPLAY TEST   (INSPECTION/TEST OP
When the INSPECTION/TEST OPERATION BUTTON is pressed, the display shows the system mode is in.
7| DISPLAY   (PROGRAMMED TIME)
This display shows the PROGRAMMED TIME of the system’s start or stop.
8| DISPLAY (SET TEMPERATURE)
This display shows the set temperature.
9| DISPLAY (FAN SPEED)
This display shows the set fan speed.
10| DISPLAY (AIRFLOW FLAP)
Refer to “AIRFLOW DIRECTION ADJUST”.
11| DISPLAY __(TIME TO CLEAN AIR FIL­TER)
Refer to “HOW TO CLEAN THE AIR FILTER”.
12| DISPLAY (DEFROST/HOT START)
Refer to “DEFROST OPERATION”.
13| NON-FUNCTIONING DISPLAY
If that particular function is not available, pressing the button may display the words “NOT AVAILABLE” for a few seconds. When running multiple units simultaneously  The “NOT AVAILABLE” message will only appear if none of the indoor units is equipped with the function. If even one unit is equipped with the function, the display will not appear.
14| TIMER MODE START/STOP BUTTON
Refer to “PROGRAM TIMER OPERATION”.
15| TIMER ON/ OFF BUTTON
Refer to “PROGRAM TIMER OPERATION”
16| INSPECTION/TEST OPERATION BUTTON
This button is used only by qualified service persons for maintenance purposes.
17| PROGRAMMING TIME BUTTON
Use this button for programming “START and/ or STOP” time.
18| TEMPERATURE SETTING BUTTON
Use this button for SETTING TEMPERA­TURE.
19| FILTER SIGN RESET BUTTON
Refer to “HOW TO CLEAN THE AIR FILTER”.
20| FAN SPEED CONTROL BUTTON
Press this button to select the fan speed, HIGH or LOW, of your choice.
21| OPERATION MODE SELECTOR BUTTON
Press this button to select OPERATION MODE.
22| AIRFLOW DIRECTION ADJUST BUTTON
Refer to “AIRFLOW DIRECTION ADJUST”.
NOTE
** • For the sake of explanation, all indications are shown on the display in figure 1 contrary to actual running situations.

NOTE

•  For the sake of explanation, all indications are shown on the display in figure 1 contrary to actual running situations.

OPERATION PROCEDURE

Refer to figure 1 on page [1]

• The operating procedure varies with heat pump type and cooling only type. Contact your Daikin dealer to confirm your system type.
• To protect the unit, turn on the main power switch 6 hours before the operation.
• If the main power supply is turned off during operation, the operation will restart automatically after the power turns back on again.

COOLING, HEATING, AUTOMATIC, FAN, AND PROGRAM DRY OPERATION

Operate in the following order.

OPERATION MODE SELECTOR

Press the OPERATION MODE SELECTOR button several times and select the OPERATION MODE of your choice as follows.

• COOLING OPERATION …………………….

•  HEATING OPERATION ……………………..

• AUTOMATIC OPERATION …………………

• In this operation mode, COOL/HEAT changeover is automatically conducted.

• FAN OPERATION……………………………..

• DRY OPERATION …………………………….

• The function of this program is to decrease the humidity in your room with a minimum temperature decrease.

• Microcomputer automatically determines
  TEMPERATURE and FAN SPEED.

• This system does not go into operation if the room temperature is below 16°C.

Refer to figure 3 on page [1]

• For cooling only types, “ COOLING ”, “ FAN ” and “ DRY ” operations are able to select.

ON/OFF
Press the ON/OFF button
OPERATION lamp lights up or goes off and the system starts or stops OPERATION.
[EXPLANATION OF HEATING OPERATION]

(1) DEFROST OPERATION
• As the frost on the coil of an outdoor unit increases, the healing effect decreases and the system goes into DEFROST OPERATION.
• The indoor unit fan stops and the remote controller display shows .
• After 6 to 8 minutes (maximum 10 minutes) of DEFROST OPERATION, the system returns to HEATING OPERATION.

(2) HOT START
• In order to prevent cold air from blowing out of an indoor unit at the start of heating operation, the indoor fan is automatically stopped. The display of the remote controller hows ****(DEFROST/HOT START).

(3) OPERATION START
• For ordinary heating, it will take longer for the room temperature to reach the set temperature than with cooling.  We, therefore, recommend starting the unit ahead of time using the timer operation.

Regarding outside air temperature and heating capacity

• The heating capacity of the air conditioner declines as the outside air temperature falls. In such a case, use the air conditioner in combination with other heating systems.
• A warm air circulating system is employed, and therefore it takes some time until the entire room is warmed up after the start of operation.
• An indoor fan runs to discharge a gentle wind automatically until the temperature inside the air conditioner reaches a certain level. At this time, the remote controller displays ****. Leave it as it stands and wait for a while.
• When the warm air stays under the ceiling and your feet are cold, we recommend that you use a circulator (a fan to circulate the air inside the room). For details, consult your dealer.

ADJUSTMENT
For programming TEMPERATURE, FAN SPEED, and AIRFLOW DIRECTION, follow the procedure shown below.

TEMPERATURE SETTING

Press the TEMPERATURE SETTING button and program the setting temperature.

Each time this button is pressed, the setting temperature rises 1°C.
Each time this button is pressed, setting the temperature lowers by 1°C.
• The setting is impossible for fan operation.

NOTE
• The setting temperature range of the remote controller is 16°C to 32°C.

FAN SPEED CONTROL
Press the FAN SPEED CONTROL button.
High or Low fan speed can be selected.
The microcomputers may sometimes control the fan speed in order to protect the unit.

AIRFLOW DIRECTION ADJUST

Press the AIRFLOW DIRECTION ADJUST button to adjust the airflow angle.

• The movable limit of the flap is changeable. Contact your Daikin dealer for details.
  Press the AIRFLOW DIRECTION ADJUST button to select the air direction as follows.

The AIRFLOW FLAP display swings as shown left and the airflow direction continuously varies. (Automatic swing setting)

Press the AIRFLOW DIRECTION ADJUST button to select the air direction of your choice.

The AIRFLOW FLAP display stops swinging and the airflow direction is fixed (Fixed airflow direction setting).

MOVEMENT OF THE AIRFLOW FLAP
For the following conditions, the microcomputer controls the airflow direction so it may be different from the display.

• When starting operation
• When the room temperature is higher than the set temperature
• At defrost operation (Air is blown horizontally to prevent the  cool air from being blown directly onto anyone in the room.)

Operation mode includes automatic operation.
ATTENTION:

• The movable limit of the flap is changeable. Contact your Daikin dealer for details.
• Avoid operating in the horizontal direction which may cause dew or dust to settle on the ceiling.

PROGRAM TIMER OPERATION
Operate in the following order.

• The timer is operated in the following two ways.
  Programming the stop time … The system stops operating after the set time has elapsed.

• Programming the start time ( )… The system starts operating after the set time has elapsed.

• The timer can be programmed for a maximum of 72 hours.

• The start and the stop time can be simultaneously programmed.

TIMER MODE START/STOP
Press the TIMER MODE START/STOP button several times and select the mode on the display.
The display flashes.
For setting the timer stop…
For setting the timer start…

PROGRAMMING TIME
Press the PROGRAMMING TIME button and set the time for stopping or starting the system.

When this button is pressed, the time advances by 1 hour.
When this button is pressed, the time goes backward by 1 hour.

TIMER ON/OFF

Press the TIMER ON/OFF button.
The timer setting procedure ends.
The display **changes from flashing light to constant light.
Refer to figure 4 on page [1]**

For example:
When the timer is programmed to stop the system after 3 hours and start the system after 4 hours, the system will stop after 3 hours, and then 1 hour later the system will start.

NOTE

• When setting the timer Off and On at the same time, repeat the above procedure from 1 to 3 once again.
• After the timer is programmed, the display shows the remaining time.
• Press the TIMER ON/OFF button once again to cancel programming. The display vanishes.

OPTIMUM OPERATION

Observe the following precautions to ensure the system operates.

• Adjust the room temperature properly for a comfortable environment. Avoid excessive heating or cooling.

• Prevent direct sunlight from entering a room during cooling operation by using curtains or blinds.

• Ventilate the room regularly. Using the unit for long periods of time requires attentive ventilation of the room.

• Do not place items that might be damaged by water under the indoor unit. Water may condensate and drip if the humidity reaches 80% or if the drain exit gets clogged.

• Keep doors and windows closed. If the doors and windows remain open, room air will flow out and cause to decrease in the effect of cooling and heating.

• Do not place other heaters directly below the indoor unit. They may deform due to the heat.

• Never place objects near the air inlet and the air outlet of the unit. It may cause deterioration in the effect or stop the operation.

• Turn off the main power supply switch when it is not used for long periods of time. When the main power switch is turned on, some watts of electricity are being used even if the system is not operating. Turn off the main power supply switch for saving energy. When reoperating, turn on the main power supply switch 6hours before the operation for smooth running (Refer to MAINTENANCE).

• When the display shows (TIME TO CLEAN AIR FILTER), ask a qualified service person to clean the filters (Refer to MAINTENANCE).

• Fully use the function of airflow direction adjust. Cold air gathers on the floor, and warm air gathers in the ceiling.
  Set the airflow direction parallel during cooling or dry operation, and set it downwards during heating operation.
  Do not let the air blow directly to a person.

• It takes time for the room temperature to reach the set temperature. We recommend starting the operation in advance using a timer operation.

MAINTENANCE (FOR SERVICE PERSONNEL)

ONLY A QUALIFIED SERVICE PERSON IS ALLOWED TO PERFORM MAINTENANCE

WARNING

• Before touching any of the connection wirings, be sure to turn off all power supply switches.
• Contact professional personnel about the attachment of accessories and be sure to use only accessories specified by the manufacturer. If a defect results from your own workmanship, it may result in water leaks, electric shock, or fire.

CAUTION

• Before cleaning, be sure to stop unit operation, turn the breaker off, or remove the power cord.
  Otherwise, an electric shock and injury may result.

• Do not wash the air conditioner with water, as this may result in electric shocks or fire.

• Consult your dealer regarding cleaning the inside of the air conditioner.
  Improper cleaning may cause breakage of plastic parts, water leakage, and other damage as well as electric shocks.
  Take care of scaffolding and exercise caution when working high above ground level.

HOW TO CLEAN THE AIR FILTER
Clean the air filter when the display shows ”(TIME TO CLEAN AIR FILTER).
It will display that it will operate for a set amount of time.
Increase the frequency of cleaning if the unit is installed in a room where the air is extremely contaminated.
If the dirt becomes impossible to clean, change the air filter (Air filter for exchange is optional)

1. Open the suction grille.
   Push it down slowly while pressing horizontally the buttons provided on two spots. (Follow the same procedure for closing.)

2. Detach the air filter.
   Pull the hook of the air filter out diagonally downward, and remove the filter.

3. Clean the air filter.
   Use vacuum cleaner A) or wash the air filter with water B).
   A ) Using a vacuum cleaner
   B ) Washing with water
   When the air filter is very dirty, use a soft brush and neutral detergent.
   Remove water and dry in the shade.
   NOTE
   • Do not wash the air conditioner with hot water of more than 50°C, as doing so may result in discoloration and/or deformation.
   • Do not expose it to fire, as doing so may result in burning

4. Fix the air filter.
   (1) Hook the air filter to a protrusion on the suction grille.
   (2) Push the lower part of the air filter onto the protrusion at the lower part of the suction grille, and fix the air filter there.

5. Shut the suction grille.
   Refer to item No.1.

6. After turning on the power, press the FILTER SIGN RESET button.
   The “TIME TO CLEAN AIR FILTER” display vanishes.

HOW TO CLEAN AIR OUTLET AND OUTSIDE PANELS

• Clean with a soft cloth.
• When it is difficult to remove stains, use water or neutral detergent.
• When the flap is extremely contaminated, remove it as below and clean or exchange it. (For changing the flap, please contact your dealer.)

NOTE

• Do not use gasoline, benzene, thinner, polishing powder, or liquid insecticide. It may cause discoloring or warping.

• Do not let the indoor unit get wet. It may cause an electric shock or fire.

• Do not scrub firmly when washing the blade with water.
  The surface sealing may peel off.

• Do not use water or air of 50°C or higher for cleaning air filters and outside panels.

HOW TO CLEAN THE SUCTION GRILLE

1. Open the suction grille.
   Push it down slowly while pressing horizontally the buttons provided on two spots. (Follow the same procedure for closing.)

2. Detach the suction grille.
   Open the suction grille 45 degrees and lift it upward.

3. Detach the air filter.
   Refer to “HOW TO CLEAN THE AIR FILTERitem No.2”.

4. Clean the suction grille.
   Wash with a soft bristle brush and neutral detergent or water, and dry thoroughly.
   • When very grimy
   Directly apply the type of detergent used for cleaning ventilation fans or ovens, wait 10 minutes, and then rinse with water.

5. Fix the air filter.
   Refer to “HOW TO CLEAN THE AIR FILTERitem No.4”.

6. Fix the suction grille.
   Refer to item No. 2.

7. Shut the suction grille.
   Refer to item No. 1.

STARTUP AFTER A LONG STOP
Confirm the following

• Check that the air inlet and outlet are not blocked. Remove any obstacle.

• Check if the earth is connected.
  Might there be a broken wire somewhere?
  Contact your dealer if there are any problems.
  Clean the air filter and outside panels

• After cleaning the air filter, make sure to attach it.
  Turn on the main power supply switch

• The display on the remote controller will be shown when the power is turned on.

• To protect the unit, turn on the main power switch at least 6 hours before the operation.

WHAT TO DO WHEN STOPPING THE SYSTEM FOR A LONG PERIOD
Turn on FAN OPERATION for a half-day and dry the unit.

• Refer to “6. OPERATION PROCEDURE”.
  Cut off the power supply.

• When the main power switch is turned on, some watts of electricity are being used even if the system is not operating. Turn off the main power supply switch for saving energy.

• The display on the remote controller will vanish when the main power switch is turned off.
  Clean the air filter and the exterior.

• Be sure to replace the air filter in its original place after cleaning. Refer to “MAINTENANCE”.

 NO MALFUNCTION OF THE AIR CONDITIONER

The following symptoms do not indicate an air conditioner malfunction
I. THE SYSTEM DOES NOT OPERATE

• The system does not restart immediately after the ON/OFF button is pressed.
  If the OPERATION lamp lights, the system is in normal condition.
  It does not restart immediately because a safety device operates to prevent overload of the system. After 3 minutes, the system will turn on again automatically.

• The system does not restart immediately when the TEMPERATURE SETTING button is returned to the former position after pushing the button.
  If the OPERATION  lamp lights, the system is in normal condition.
  It does not restart immediately because a safety device operates to prevent overload of the system. After 3 minutes, the system will turn on again automatically.

• The system does not start when the display shows (UNDER CENTRALIZED CONTROL) and it flashes for a few seconds after pressing an operation button.
  This is because the system is under centralized control. Flashes on the display indicate that the system cannot be controlled by the remote controller.

• The system does not start immediately after the power supply is turned on.
  Wait one minute until the microcomputer is prepared for operation.

• The outdoor unit is stopped
  This is because the room temperature has reached the set temperature. The indoor unit switches to fan operation.

II. The display shows (UNDER CENTRALIZED CONTROL) and the unit operates in a mode different from what is shown on the remote controller display.
When using a unit in a multi-system, the operation condition of that unit is controlled by a microcomputer as described below, according to the operation condition of other indoor units connected to the system.

• If the operation mode does not match other indoor units that are already running, the indoor unit will assume the STANDBY state (the fan is stopped and the airflow flap s positioned horizontally).
  If HEATING mode is set together with COOLING, DRY, or FAN mode, the above- mentioned condition will occur.

NOTE

• Normally, the operation mode in the room where the unit is first to run is given priority, but the following situations are exceptions, so please keep this in mind. A
  a. If the operation mode of the first room is FAN Mode, then using Heating Mode in any room after this will give priority to heating. In this situation, the air conditioner running in FAN Mode will go on standby.
  b. With the Priority Room  Setting active. Contact your Daikin dealer for the operation that corresponds to your system.

• If the total capacity f  operating indoor units exceeds the limit, the indoor unit will assume the STANDBY state (FAN and AIRFLOW DIRECTION will be left assets). (This only applies to cool only type.)

• If another indoor unit commences a HEATING operation after this indoor unit is running in COOLING mode, this indoor unit may switch to DRY  operation (fan on low, airflow flap set at horizontal).

III. The fan speed is different from the setting.

• Pressing the fan speed control button does not change the fan speed.
  When the room temperature reaches the set temperature in heating mode, the power supply from the outdoor unit is stopped and the indoor unit will operate on the low fan setting. (If using the multi-system, the fan will alternate between off and low.)
  This is to prevent the cool air from being blown directly onto anyone in the room.

IV. AIR BLOW DIRECTION IS NOT AS SPECIFIED.

• Actual air blow direction is not as shown on the remote controller.
• The automatic swing setting does not work.
  Refer to “AIRFLOW DIRECTION ADJUST.”

V. WHITE MIST COMES OUT OF A UNIT

• When humidity is high during cooling operation (In oily or dusty places)
  If the inside of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the inside of the indoor unit. Ask your Daikin dealer for details on cleaning the unit. This operation requires a qualified service person.

• When the system is changed over to HEATING OPERATION after DEFROST OPERATION.
  Moisture generated by DEFROST becomes steam and exists.

VI. NOISE OF AIR CONDITIONERS

• A ringing sound after the unit is started.
  This sound is generated by the temperature regulator working. It will quiet down after about a minute.

• A continuous flow “Shuh” sound is heard when the system is in COOLING or DEFROST OPERATION.
  This is the sound of refrigerant gas flowing through both indoor and outdoor units.

• A “Shuh” sound is heard at the start or immediately after the stop of operation which is heard at the start or immediately after the stop of DEFROST OPERATION.
  This is the noise of refrigerants caused by flow stop and flow change.

• A continuous flowing sound “Shah” or a trickling sound “Jyuru Jyuru” is heard when the system is in COOLING OPERATION or at a stop.
  The noise is heard when the drain pump is in operation.

• A “Pishi-pishi” squeaking sound is heard when the system is in operation or after the stop of operation.
  The expansion and contraction of plastic parts caused by temperature change make this noise.

VII. DUST FROM THE UNITS

• Dust may blow out from the unit after starting an operation from a long resting time.
  Dust absorbed by the unit blows out.

VIII.THE UNITS GIVE OFF ODORS
The unit absorbs the smell of rooms, furniture, cigarettes, etc., and then emits them.
IX.THE LIQUID CRYSTAL OF THE REMOTE CONTROLLER SHOW

• It happens immediately after the main power supply switch is turned on.
  This shows that the remote controller is in normal condition. This continues temporarily.

X. THE ROOM TEMPERATURE DOES NOT DROP

• The air conditioner is in program dry operation.
  The air conditioner in the program dry operation does not drop the room temperature as much as possible. See pages 5-6 “OPERATION PROCEDURE”.

TROUBLESHOOTING

I. If one of the following malfunctions occurs, take the measures shown below and contact your Daikin dealer.
The system must be repaired by a qualified service person.

WARNING
When the air conditioner is in abnormal conditions (smell of something burning, etc), unplug the power cord from the outlet, and contact your dealer
Continued operation under such circumstances may result in a failure, electric shock, and fire.

• If a safety device such as a fuse, a breaker, or an earth leakage breaker frequently actuates; Measure: Do not turn on the main power switch.
• If the ON/OFF switch does not properly work; Measure: Turn off the main power switch.
• If water leaks from the unit. Measure: Stop the operation.
• If the display ****(INSPECTION), “UNIT No.”, and the OPERATION lamp flash and the “MALFUNCTION CODE” appears.

Measure: Notify and inform the model name and what the malfunction code indicates to your Daikin dealer.

II. If the system does not properly operate except for the above-mentioned case, and none of the above-mentioned malfunctions is evident, investigate the system according to the following procedures.
1. If the system does not operate at all.

• Check if there is a power failure.
  Wait until power is restored. If a power failure occurs during operation, the system automatically restarts immediately after the power supply recovers.

• Check if no fuse has blown. Turn off the power supply.

• Check if the breaker is blown.
  Turn the power on with the breaker switch in the off position.
  Do not turn the power on with the breaker switch in the trip position. (Contact your dealer.)

2. If the system stops operating after operating the system.

• Check if the air inlet or outlet of the outdoor or indoor unit is blocked by obstacles. Remove the obstacle and make it well-ventilated.
• Check if the air filter is clogged. Ask a qualified service person to clean the air filters (Refer to MAINTENANCE).

3. The system operates but it does not sufficiently cool or heat.

• If the air inlet or outlet of the indoor or the outdoor unit is blocked by obstacles. Remove the obstacle and make it well-ventilated.
• If the air filter is clogged. Ask a qualified service person to clean the air filters (Refer to MAINTENANCE).
• If the set temperature is not proper (Refer to ADJUSTMENT).
• If the FAN SPEED button is set to LOW SPEED (Refer to ADJUSTMENT).
• If the airflow angle is not proper (Refer to AIRFLOW DIRECTION ADJUST).
• If the doors or the windows are open. Shut doors or windows to prevent wind from coming in.
• If direct sunlight enters the room (when cooling). Use curtains or blinds.
• When there are too many inhabitants in the room (when cooling). The cooling effect decreases if the heat gain of the room is too large.
• If the heat source of the room is excessive (when cooling). The cooling effect decreases if the heat gain of the room is too large.

DAIKIN INDUSTRIES, LTD.

Head office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-Ku, Osaka, 530-8323 Japan
Tokyo office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
(0906) HT
3P184442-4D EM09A010

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