DAIKIN ROOM AIR CONDITIONER

Features

Enhanced comfort and energy savings

Read Before Operation

Safety Considerations

[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 comes into 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 will 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 will 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.

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 5 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.
• 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.

Names of Parts

Indoor Unit (FTX09NMVJU / FTX12NMVJU / FTXN09NMVJU / FTXN12NMVJU)

Diagram Description: An illustration of the indoor unit showing:

• Front panel: The main casing at the front.
• Air inlet: Where air is drawn into the unit.
• Flap (horizontal blade): Controls the horizontal airflow direction. (See Page 14)
• Louvers (vertical blades): Located inside the air outlet, control vertical airflow. (See Page 14)
• Air outlet: Where conditioned air is expelled.
• Model name: Label indicating the unit's model.
• Indoor temperature sensor: Detects the air temperature around the unit.

Display Section:

• OPERATION lamp (green): Indicates the unit is operating.
• TIMER lamp (orange): Indicates timer functions are active. (See Pages 17, 18)

Signal receiver: Receives signals from the remote controller. A beep sound is heard when a signal is received.

• Case: Operation start (beep-beep), Setting changed (beep), Operation stop (long beep).

Indoor unit ON/OFF switch: Press once to start operation, press again to stop. Used when the remote controller is missing. Default settings: Mode AUTO, Temperature 77°F (25°C), Airflow rate AUTO.

Outdoor Unit

Diagram Description: An illustration of the outdoor unit showing:

• Air inlet (back and side): Where air is drawn into the outdoor unit.
• Air outlet: Where air is expelled from the outdoor unit.
• Titanium apatite photocatalytic air-purifying filter (without frame): For FTXN09/12NMVJU models, sold separately.
• Air filter: Filters the air.
• Outdoor temperature sensor (back): Detects the outdoor air temperature.
• Refrigerant pipes and inter-unit wire: Connect the indoor and outdoor units.
• Model name: Label indicating the unit's model.
• Ground terminal (inside): For grounding the unit.
• Drain hose: Drains condensed water.

Note: The appearance of the outdoor unit may differ between different models.

Remote Controller

Diagram Description: An illustration of the remote controller showing:

• Display (LCD): Shows current settings.
• Signal transmitter: Transmits signals to the indoor unit. Aim at the indoor unit; obstructions like curtains can block signals. Maximum transmission distance is about 23ft (7m).
• Direct operation buttons: [AUTO], [COOL], [DRY], [HEAT], [FAN ONLY] for starting specific operations. (See Page 11)
• TEMPERATURE adjustment button: [TEMP] buttons to raise or lower the temperature setting. (See Page 12)
• COMFORT button: Activates COMFORT AIRFLOW operation. (See Page 15)
• POWERFUL button: Activates POWERFUL operation. (See Page 15)
• OFF TIMER button (NIGHT SET mode): Sets the OFF timer. (See Page 18)
• ON TIMER button: Sets the ON timer. (See Page 17)
• OFF button: Stops operation. (See Page 12)
• FAN setting button: Selects airflow rate. (See Page 13)
• ECONO button: Activates ECONO operation. (See Page 16)
• SWING button: Adjusts airflow direction. (See Page 14)
• TIMER CANCEL button: Cancels timer settings. (See Pages 17, 18)

Unit and Remote Controller Compatibility:

Preparation Before Operation

To insert the batteries

1. Remove the back cover by sliding and then slightly lifting it.
2. Insert 2 dry batteries AAA.LR03 (alkaline).
3. Replace the back cover.

To fix the remote controller holder to a wall

1. Choose a place where the signals reach the unit.
2. Attach the holder to a wall, a pillar, or similar location with the screws supplied with the holder.
3. Hang the remote controller on the remote controller holder.

Fahrenheit/Celsius display switch

Press [TEMP] and [ON] (TIMER button) simultaneously for about 5 seconds to switch between Fahrenheit and Celsius display.

Turn on the circuit breaker

After the power is turned on, the flap of the indoor unit opens and closes once to set the reference position.

Notes on batteries

• When replacing batteries, use batteries of the same type and replace both old batteries together.
• Batteries last about 1 year. If the remote controller display fades or transmission range shortens, replace batteries.
• Supplied batteries are for initial operation and may run out in less than 1 year.

Note on remote controller

• Do not drop or get the remote controller wet.

Fahrenheit/Celsius display change function

• The set temperature may increase slightly when changing to Celsius from Fahrenheit due to rounding.
• A reception sound confirms the setting change.

Basic Operation

AUTO COOL DRY HEAT FAN ONLY Operation

The air conditioner operates with the operation mode of your choice.

To start operation

• AUTO operation: Automatically selects appropriate temperature and operation mode. Press [AUTO].
• COOL operation: Lowers the temperature. Press [COOL].
• DRY operation: Lowers humidity. Press [DRY].
• HEAT operation: Raises the temperature. Press [HEAT].
• FAN ONLY operation: Circulates air in the room. Press [FAN ONLY].

The OPERATION lamp (green ?) lights up.

Notes on AUTO operation

• The system selects the mode (COOL or HEAT) based on indoor temperature.
• The system automatically reselects settings periodically to maintain the user-set temperature.

Note on DRY operation

• Eliminates humidity while maintaining indoor temperature. Temperature and airflow are controlled automatically; manual adjustment is unavailable.

To stop operation

Press [OFF]. The OPERATION lamp goes off.

To change the temperature setting

Press [TEMP] to raise the temperature and [TEMP] to lower it.

Tips for saving energy

• Keeping the temperature setting at a moderate level helps save energy.
• Recommended settings: Cooling: 78-82°F (26-28°C), Heating: 68-75°F (20-24°C).
• Cover windows with blinds or curtains to block sunlight and outside air, enhancing cooling/heating effect.
• Keep air filters clean for efficient operation and energy saving. Clean filters every 2 weeks (See Pages 20, 23).
• If not using the air conditioner for a long period (e.g., spring or autumn), turn off the circuit breaker. The unit consumes a small amount of electricity even when not operating.

Basic Operation

Adjusting the Airflow Rate

You can adjust the airflow rate for comfort.

To adjust the airflow rate setting

Press [FAN]. Each press cycles through settings: AUTO, quiet operation (indicated by a fan symbol ?), and Airflow rate 1-5 (Low to High).

• Quiet operation reduces noise. In this mode, airflow is set to a weak level.
• In AUTO, COOL, HEAT, and FAN ONLY modes, airflow rate can be adjusted.
• In DRY operation, the airflow rate setting cannot be changed.

Note on airflow rate setting: Smaller airflow rates result in a smaller cooling/heating effect.

Adjusting the Airflow Direction

You can adjust the airflow direction for comfort.

CAUTION

• Always use the remote controller to adjust the flap angle. Moving the flap by hand may cause malfunction.
• Be careful when adjusting louvers; the fan rotates at high speed inside the air outlet.

To start auto swing

Press [SWING]. The flap (horizontal blade) will begin to swing (indicated by a symbol on the LCD).

To set the flap at the desired position

While in auto swing mode, press [SWING] again when the flap reaches the desired position. The swing symbol disappears from the LCD.

To adjust the louvers at desired position

Hold the knobs and move the louvers (vertical blades).

• FTX09NMVJU/FTX12NMVJU, FTXN09NMVJU/FTXN12NMVJU
• FTX15NMVJU/FTX18NMVJU/FTX24NMVJU, FTXN18NMVJU/FTXN24NMVJU

Note: The movable range of the flap varies according to the operation mode. The flap stops at the upper position when airflow rate is set to low during up/down swing.

Useful Functions

COMFORT AIRFLOW Operation

The air direction and flow rate are adjusted so that the air will not blow directly at people in the room.

To start COMFORT AIRFLOW operation

Press [COMFORT]. A symbol [ ] appears on the LCD.

• Flap direction: Goes up in COOL/DRY, goes down in HEAT.
• Airflow rate: AUTO.
• Not available in FAN ONLY mode.

To cancel COMFORT AIRFLOW operation

Press [COMFORT] again. The symbol disappears. The flap returns to its previous position.

POWERFUL Operation

POWERFUL operation quickly maximizes cooling (heating) effect, operating at maximum capacity.

To start POWERFUL operation

Press [POWERFUL]. A symbol [ ] appears on the LCD. Operation ends in 20 minutes, then resumes previous settings.

To cancel POWERFUL operation

Press [POWERFUL] again. The symbol disappears.

ECONO Operation

ECONO operation enables efficient operation by limiting maximum power consumption, preventing circuit breaker tripping when used with other appliances on the same circuit.

To start ECONO operation

Press [ECONO]. A symbol [ ] appears on the LCD. Not available in FAN ONLY mode.

To cancel ECONO operation

Press [ECONO] again. The symbol disappears.

Notes on useful functions

• COMFORT AIRFLOW + ECONO: Available.
• POWERFUL + COMFORT AIRFLOW: Not available (priority given to the last button pressed).
• POWERFUL + ECONO: Not available (priority given to the last button pressed).

TIMER Operation

ON/OFF TIMER Operation

Timer functions automatically switch the air conditioner on or off at night or in the morning. ON and OFF timers can be used together.

To use ON TIMER operation

Press [ON]. A symbol [ON HR. ] appears on the LCD. Each press of [ON] sets the time by 1 hour (1-12 hours). The TIMER lamp (orange ?) lights up.

To cancel ON TIMER operation

Press [CANCEL]. The [ON HR. ] symbol disappears, and the TIMER lamp goes off.

NOTE

Reset the timer if the circuit breaker is turned off, after a power failure, or after replacing batteries.

To use OFF TIMER operation

Press [OFF]. A symbol [OFF HR. ] appears on the LCD. Each press of [OFF] sets the time by 1 hour (1-12 hours). The TIMER lamp (orange ?) lights up.

To cancel OFF TIMER operation

Press [CANCEL]. The [OFF HR. ] symbol disappears, and the TIMER lamp goes off.

To combine ON TIMER and OFF TIMER operation

Example settings:

• When unit is operating: Set OFF timer for 1 hour later, ON timer for 7 hours after that.
• When unit is stopped: Set ON timer for 2 hours later, OFF timer for 3 hours after that.

NIGHT SET mode

When OFF TIMER is set, the air conditioner automatically adjusts temperature (0.9°F/0.5°C up in COOL, 3.6°F/2.0°C down in HEAT) to prevent excessive cooling/heating during sleep.

Care and Cleaning

FTX09NMVJU / FTX12NMVJU / FTXN09NMVJU / FTXN12NMVJU

CAUTION

• Before cleaning, stop operation and turn off the circuit breaker.
• Do not touch the aluminum fins of the indoor unit; they can cause injury.

Quick reference

Cleaning parts

• Front panel: Wipe with a soft damp cloth. Use only neutral detergent if dirty.
• Air filter: Vacuum dust or wash the filter. Clean once every 2 weeks. (See Page 20)
• Indoor unit, outdoor unit and remote controller: Wipe with a soft cloth.
• Titanium apatite photocatalytic air-purifying filter (without frame): Vacuum dust or replace. Clean once every 6 months, replace once every 3 years. (See Pages 21)

NOTE For cleaning, do not use:

• Water hotter than 104°F (40°C).
• Volatile liquids (benzene, petrol, thinner).
• Polishing compounds.
• Rough materials (scrubbing brush).

Air filter cleaning steps

1. Open the front panel.
2. Pull out the air filters.
3. Wash filters with water or clean with a vacuum cleaner. For stubborn dust, wash with lukewarm water and neutral detergent, then dry in the shade.
4. Reattach the filters.
5. Close the front panel slowly, ensuring it is securely fixed.

Titanium apatite photocatalytic air-purifying filter

[Cleaning]

1. Open front panel and pull out air filters.
2. Take off titanium apatite filters.
3. Clean or replace: Vacuum dust, or soak in lukewarm water for 10-15 minutes if very dirty. Do not remove filter from frame when washing. After washing, shake off water and dry in shade.

[Replacement]

1. Remove the filter from the frame and prepare a new one. Reuse the filter frame.
2. Dispose of old filter as non-flammable waste.
3. Insert new titanium apatite filters.
4. Reattach filters.
5. Close front panel slowly.

NOTE Operation with dirty filters reduces performance, air purification, and may cause odors.

Care and Cleaning (All models - Prior to long period of non-use)

1. Operate the FAN ONLY mode for several hours to dry the inside. Press [FAN ONLY].
2. After operation stops, turn off the circuit breaker.
3. Take out batteries from the remote controller.

Periodical maintenance is recommended by a qualified contractor for optimal performance.

When the Need Arises

FAQ

Indoor unit

• The flap does not start swinging immediately: The air conditioner is adjusting the flap position.
• Air conditioner stops generating airflow during HEAT operation: Once the set temperature is reached, airflow reduces to prevent cool airflow. Operation resumes when indoor temperature falls.
• HEAT operation stops suddenly and a flowing sound is heard: The outdoor unit is defrosting. HEAT operation resumes after frost removal (4-12 minutes).
• Operation does not start soon: This can occur after stopping operation or changing modes to protect the unit. Wait about 3 minutes.
• Different sounds are heard:
  • Flowing water sound: Refrigerant flow or water pumping.
  • Blowing sound: Refrigerant flow switching.
  • Ticking sound: Cabinet/frame expansion/contraction due to temperature changes.
  • Whistling sound: Refrigerant flow during defrosting.
  • Clicking sound: Refrigerant control valves or electrical parts operating.
  • Clopping sound: Exhaust fan activation. Open window or turn off exhaust fan.

Outdoor unit

• Operating sound is loud: May increase slightly when frost forms on the heat exchanger.
• Outdoor unit emits water or steam: In HEAT operation, melting frost creates steam/water. In COOL/DRY, condensation forms water.

Troubleshooting

The air conditioner does not operate

The air conditioner suddenly stops operating

The air conditioner does not stop operating

The room does not cool down / warm up

Mist comes out

• Mist may appear from the indoor unit when cooling the room air.

Remote controller issues

• No signal or limited range: Batteries may be exhausted; replace them. Ensure no obstructions. Inverter-type fluorescent lamps or direct sunlight may interfere.
• Faint LCD, not working, or erratic display: Batteries may be exhausted; replace them.
• Other electric devices start operating: Move remote controller away from other devices or consult dealer.

Air has an odor

• Room odor absorbed by the unit may be discharged. Consider cleaning the indoor unit; consult your dealer.

Other issues

• Air conditioner behaves strangely: May be due to lightning or radio interference. Turn off the circuit breaker and restart operation.

Notes on operating conditions

If operating outside specified conditions, a safety device may stop operation. Condensation may form and drip from the indoor unit during COOL or DRY operation.

Fault Diagnosis by Remote Controller

The remote controller can receive error codes from the indoor unit.

1. When [CANCEL] is held down for about 5 seconds, "00" blinks in the temperature display.
2. Press [CANCEL] repeatedly until a continuous beep is produced. The code indication changes, notifying with a long beep.

Error Codes

NOTE A short beep indicates non-corresponding codes. To cancel the code display, hold [CANCEL] down for about 5 seconds.

Company Information

GOODMAN MANUFACTURING COMPANY, L.P.
5151 San Felipe, Suite 500
Houston, TX 77056 USA

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
http://www.daikin.com

Certifications: ETL LISTED US (Intertek)