DAIKIN

Introduction

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. This manual explains about the indoor unit only. Use it along with the operation manual for the outdoor unit. After reading the manual, file it away for future reference.

SAFETY CONSIDERATIONS

Read these Safety Considerations for Operations carefully before installing air conditioning equipment. After completing the installation, make sure that the unit operates properly during the startup operation. Instruct the customer on how to operate and maintain the unit. Inform customers that they should store this Operation Manual with the Installation Manual for future reference.

Meanings of DANGER, WARNING, CAUTION, and NOTE Symbols:

DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

NOTE: Indicates situations that may result in equipment or property-damage accidents only.

DANGER

• Do not install the unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Any abnormalities in the operation of the air conditioner or heat pump such as smoke or fire could result in severe injury or death. Turn off the power and contact your dealer immediately.
• Refrigerant gas may produce toxic gas if it come in contact with fire, such as from a fan, heater, stove, or cooking device. Exposure to this gas could cause severe injury or death.
• For refrigerant leakage, consult your dealer. Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If equipment utilizing a burner is used in the same room as the air conditioner or heat pump, there is the danger of oxygen deficiency which could lead to an asphyxiation hazard resulting in serious injury or death. Be sure to ventilate the room sufficiently to avoid this hazard.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
• Tear apart and throw away plastic packaging bags so that children can not play with them. Children playing with plastic bags face the danger of death by suffocation.

WARNING

• Contact your dealer for repair and maintenance. Improper repair and maintenance may result in water-leakage, electric shock, and fire. Only use accessories made by Daikin that are specifically designed for use with the equipment and have them installed by a professional.
• Contact your dealer to move and reinstall the air conditioner or heat pump. Incomplete installation may result in water leakage, electric shock, and fire.
• Never let the indoor unit or the remote controller get wet. Water can cause an electric shock or a fire.
• Never use flammable spray such as hair spray, lacquer, or paint near the unit. Flammable spray may cause a fire.
• When a fuse blows out, never replace it with one of incorrect ampere ratings or different wires. Always replace any blown fuse with a fuse of the same specification.
• Never remove the fan guard of the unit. A fan rotating at high speed without the fan guard is very dangerous.
• Never inspect or service the unit by yourself. Contact a qualified service person to perform this work.
• Turn off all electrical power before doing any maintenance to avoid the risk of serious electric shock; never sprinkle or spill water or liquids on the unit. Do not touch the switch with wet fingers. Touching a switch with wet fingers can cause electric shock.
• Do not allow children to play on or around the unit to prevent injury.
• The heat exchanger fins are sharp enough to cut. To avoid injury wear gloves or cover the fins while working around them.
• Do not put a finger or other objects into the air inlet or air outlet. The fan is rotating at high speed and may cause injury.
• Check the unit foundation for damage on a continuous basis, especially if it has been in use for a long time. If left in a damaged condition the unit may fall and cause injury.
• Placing a flower vase or other containers with water or other liquids on the unit could cause a shock or fire if a spill occurs.
• Do not touch the air outlet or horizontal blades while the swing flap is in operation because fingers could get caught and injured.
• Never touch the internal parts of the controller. Do not remove the front panel because some parts inside are dangerous to touch. To check and adjust internal parts, contact your dealer.
• Be sure to ground the unit. Do not ground the unit to a utility pipe, arrester, or telephone ground. Incomplete grounding may cause electrical shock, or fire. A high surge current from lightning or other sources may cause damage to the air conditioner or heat pump.
• This equipment can be installed with a Ground-Fault Circuit Breaker (GFCI). Although this is a recognized measure for additional protection, with the earthing system in North America, a dedicated GFCI is not necessary.

CAUTION

• Do not use the air conditioner or heat pump for any other purposes other than comfort cooling or heating. Do not use the unit for cooling precision instruments, food, plants, animals or works of art.
• Do not place items under the indoor unit as they may be damaged by condensates that may form if the humidity is above 80% or if the drain outlet gets blocked.
• Before cleaning, stop the operation of the unit by turning the power off or by pulling the supply cord out from its receptacle. Otherwise, an electric shock and injury may result.
• Do not wash the air conditioner or heat pump with excessive water. An electric shock or fire may result.
• Avoid placing the controller in a spot splashed with water. Water entering the controller may cause an electric shock or damage the internal electronic parts.
• Do not operate the air conditioner or heat pump when using a room fumigation type of insecticide. Failure to observe this could cause the chemicals to be deposited in the unit and can endanger the health of those who are hypersensitive to chemicals.
• Do not turn off the power immediately after stopping operation. Always wait for at least five minutes before turning off the power. Otherwise, water leakage may occur.
• The appliance is not intended for use by young children or infirm persons without supervision.
• The remote controller should be kept away from children so they cannot play with it.
• Consult with the installation contractor for cleaning.
• Incorrect cleaning of the inside of the air conditioner or heat pump could make the plastics parts break and cause water leakage or electric shock.
• Do not touch the air inlet or aluminum fin of the air conditioner or heat pump as they can cut and cause injury.
• Do not place objects in direct proximity of the outdoor unit. Do not let leaves and other debris accumulate around the unit. Leaves are a hotbed for small animals which can enter the unit. Once inside the unit, animals can cause the unit to malfunction, and cause smoke or fire when they make contact with electrical parts.

NOTE

• Never press the button of the remote controller with a hard, pointed object. The remote controller may be damaged.
• Never pull or twist the electric wire of the remote controller. It may cause the unit to malfunction.
• Do not place appliances that produce open flames in places that are exposed to the airflow of the unit or under the indoor unit. It may cause incomplete combustion or deformation of the unit due to the heat.
• Do not expose the controller to direct sunlight. The LCD display can become discolored and may fail to display the data.
• Do not wipe the controller operation panel with benzene, thinner, chemical dust cloth, etc. The panel may get discolored or the coating can peel off. If it is heavily dirty, soak a cloth in water-diluted neutral detergent, squeeze it well and wipe the panel clean. Then wipe it with another dry cloth.
• Dismantling of the unit, disposal of the refrigerant, oil, and additional parts, should be done in accordance with the relevant local, state, and national regulations.
• Operate the air conditioner or heat pump in a sufficiently ventilated area and not surrounded by obstacles. Do not use the air conditioner or heat pump in the following places: a. Places with a mist of mineral oil, such as cutting oil. b. Locations such as coastal areas where there is a lot of salt in the air. c. Locations such as hot springs where there is a lot of sulfur in the air. d. Locations such as factories where the power voltage varies a lot. e. In cars, boats, and other vehicles. f. Locations such as kitchens where oil may splatter or where there is steam in the air. g. Locations where equipment produces electromagnetic waves. h. Places with an acid or alkaline mist. i. Places where fallen leaves can accumulate or where weeds can grow.
• Take snow protection measures. Contact your dealer for the details of snow protection measures, such as the use of a snow protection hood.
• Do not attempt to do electrical work or grounding work unless you are licensed to do so. Consult with your dealer for electrical work and grounding work.
• Pay attention to operating sound. Be sure to use the following places: a. Places that can sufficiently withstand the weight of the air conditioner or heat pump yet can suppress the operating sound and vibration of the air conditioner or heat pump. b. Places where warm air from the air outlet of the outdoor unit or the operating sound of the outdoor unit does not annoy neighbors.
• Make sure that there are no obstacles close to the outdoor unit. Obstacles close to the outdoor unit may drop the performance of the outdoor unit or increase the operating sound of the outdoor unit.
• Consult your dealer if the air conditioner or heat pump in operation generates unusual noise.
• Make sure that the drainpipe is installed properly to drain water. If no water is discharged from the drainpipe while the air conditioner or heat pump is in the cooling mode, the drainpipe may be clogged with dust or dirt and water leakage from the indoor unit may occur. Stop operating the air conditioner or heat pump and contact your dealer.

1. NAMES AND FUNCTIONS OF PARTS

Diagram of the indoor unit showing components labeled a through i.

2. MAINTENANCE (FOR SERVICE PERSONNEL)

ONLY A QUALIFIED SERVICE PERSON IS ALLOWED TO PERFORM MAINTENANCE

WARNING

• Do not use flammable gas (such as hair sprays and insecticides) near the air conditioner.
• Do not wipe the air conditioner with benzine or thinner. It may cause cracks, electric shocks or a fire.
• Never put your fingers or rods in the air inlet, air outlet or horizontal blade. The fan is rotating at high speed, so you would get injured.

CAUTION

• Do not wash the air conditioner with water. It may cause electric shocks or a fire due to leakage.
• Make sure to turn off the air conditioner when taking care of the air conditioner and disconnect the power supply breaker. Unless the power supply is disconnected, it may cause electric shocks and injuries.
• When working at a high place, give caution to your footing. If the scaffold is unstable, it may cause injuries due to fall and stumbling.

NOTE

• Do not remove the air filter unless for cleaning. It may cause failure.
• Do not attach substance (such as paper towels) other than the specified air filter to the air inlet. The performance may drop and cause freeze-up/water leakage.

HOW TO CLEAN THE AIR FILTER

When the remote controller indicates " " or "Time to clean filter", clean the air filter.

• It indicates after running for a certain time.

NOTE

• You may change the time of indication " " or "Time to clean filter".
• If the indoor unit is used in a space where the air is more contaminated, ask your local dealer for solution.

• If it becomes difficult to remove contamination from the air filter, replace the air filter. (The replacement air filter is an optional accessory.)

HOW TO CLEAN THE SUCTION GRILLE

1. Open the suction grille. Simultaneously and slowly slide the two knobs down the suction grille.
2. Take out the air filter. Carry out the work in the order mentioned below.
   1. Pull the air filter end inclined downward and unhook the hooking hole of the air filter from the projection of the grille. (both right and left)
   2. Lift the air filter and unhook the hooking hole of the air filter from the projection at the grille upper part. (both left and right)
3. Clean the filter. Clean the contamination with a vacuum cleaner or wash it with water.

   If the air filter is extremely contaminated, wash it with neutral detergent using a soft brush.

   After dewatering, dry the air filter in the shade.

NOTE

• Do not wash the air filter with water of 122°F (50°C) or higher. It may cause decolorization and deformation.
• Do not heat the filter with fire. It may cause burning.

Attach the air filter in the reverse order mentioned in the clause 2.

Close the suction grille. Simultaneously slide the two knobs, slowly lift the suction grille and securely fix it in the reverse order mentioned in the clause 1.

Turn off the indication " " or "Time to clean filter" displayed on the remote controller after turning on the power.

• For details, refer to the operation manual attached to the remote controller.
• The indication can be turned off whether in operation or at stop.

NOTE

• When closing the suction grille, the strap is likely to be sandwiched. Make sure the strap is not sticking out before you close the suction grille.

CLEANING OUTSIDE PANELS AND REMOTE CONTROLLER

• Wipe them with a dry soft cloth.
• When the stain cannot be wiped off, dip the cloth in the neutral detergent diluted with water and twist the cloth. After wiping off stain with this cloth, wipe them with dry cloth.

NOTE

• Do not use such as gasoline, benzine, thinner, polishing powder and liquid insecticide sold in the market. It may cause discoloration and deformation.
• Do not wash them with warm water of 122°F (50°C) or higher. It may cause discoloration and deformation.

CLEANING BEFORE AND AFTER SEASONAL USE

WHAT TO DO WHEN START UP AFTER A LONG STOP

Confirm the following.

• Check that the air inlet and outlet of indoor and outdoor unit are not blocked. Remove any obstacle. Obstacles decrease the fan speed, and cause performance decrease and breakage of the devices.
• Clean the air filter. After cleaning the air filter, make sure to attach it. (Refer to "2. MAINTENANCE" on page 1.) For information on how to install, remove, or clean an optional sold air filter, refer to the user's manual attached to the air filter.
• Turn off the indication " " or "Time to clean filter" displayed on the remote controller after turning on the power. For details, refer to the operation manual attached to the remote controller. The indication can be turned off whether in operation or at stop.

Turn on the power circuit breaker at least 6 hours before operation.

• This is required in order to activate the air conditioner smoothly, and to protect the air conditioner.
• The display on the remote controller will be shown when the power circuit breaker is turned on.

HEATING OPERATION within 6 hours after power is supplied to the air conditioner.

Some model series perform the following operation to protect the devices. If the HEATING OPERATION is performed within 6 hours after power is supplied to the air conditioner, the indoor fan stops for about 10 minutes during the outdoor unit operation to protect the devices.

The above operation is performed not only for installation, but every time the power circuit breaker is turned off/on. For comfortable use, do not turn off the power circuit breaker during seasonal use of the HEATING OPERATION.

WHAT TO DO WHEN STOPPING THE AIR CONDITIONER FOR A LONG PERIOD

Turn on FAN OPERATION for a half day on a nice day and dry the indoor unit.

• This can prevent the causes of mold.

Turn off the power circuit breaker.

• When the power circuit breaker is on, some electricity is used even if the air conditioner is not operating. Turn off the power circuit breaker to save energy.
• When the power circuit breaker is off, there is no longer a display on the remote controller.

Clean the air filter.

• Be sure to return the air filter to its original place after cleaning. (Refer to "2. MAINTENANCE" on page 1.) For information on how to install, remove, or clean the optional air filter, refer to the user's manual attached to the air filter.

NOTE

The inside of the air conditioner may become contaminated after several seasons of use, potentially causing performance degradation and water leakage. Ask your local dealer for details on cleaning the inside of the indoor unit. This operation requires a qualified service person.