DAIKIN ROOM AIR CONDITIONER OPERATION MANUAL MODELS FTXS20K2V1B FTXS25K2V1B CTXS15K2V1B CTXS35K2V1B FTXS20K3V1B FTXS25K3V1B CTXS15K3V1B CTXS35K3V1B
Feature For your comfort and energy saving INTELLIGENT EYE The INTELLIGENT EYE sensor detects the human movement in a room. If no one is in the room for more than 20 minutes, the operation automatically changes to energy saving operation. Page 16 WEEKLY TIMER Up to 4 timer settings can be saved for each day of the week according to your family’s life style. The WEEKLY TIMER allows you to set on/off time and the desired temperature.
Contents ■■Read before Operation Safety Precautions .......................................... 3 Name of Parts ................................................. 5 Preparation before Operation .......................... 9 ■■Operation AUTO · DRY · COOL · HEAT · FAN Operation............................................ 11 Adjusting the Airflow Direction and Rate............................................. 13 COMFORT AIRFLOW Operation........ 15 INTELLIGENT EYE Operation............ 16 POWERFUL Operation....
Safety Precautions • Keep this manual where the operator can easily find it. • Read the precautions in this manual carefully before operating the unit. • 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. Never attempt.
CAUTION • 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. • After prolonged use, check the unit stand and its mounts for damage. If they are left in a damaged condition, the unit may fall and cause injury.
Name of Parts Indoor Unit Air inlet INTELLIGENT EYE sensor • It detects the movements of people and automatically switches between normal operation and energy saving operation. Page 16 Front panel Air outlet Louvers (vertical blades) • The louvers are inside of the air outlet. Flap (horizontal blade) Page 13 Room temperature sensor Model name plate • It detects the air temperature around the unit.
■■Open the front panel Air filter Titanium apatite photocatalytic air-purifying filter Outdoor Unit • Appearance of the outdoor unit may differ from some models. Air inlet (back and side) Outdoor temperature sensor (back) Drain hose Earth terminal Air outlet • It is inside of this cover.
Name of Parts Remote Controller Signal transmitter Receiver Display (LCD) • It displays the current settings. (In this illustration, each section is shown with its displays on for the purpose of explanation.) • To use the remote controller, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote controller, such as a curtain, the unit will not operate. • Do not drop the remote controller. Do not get it wet.
■■Open the front cover MODE selector button • It selects the operation mode. (AUTO/DRY/COOL/HEAT/ FAN) Page 11 ECONO button • ECONO operation. Page 20 SWING button QUIET button • OUTDOOR UNIT QUIET Page 19 operation. COMFORT button • Adjusting the airflow direction. Page 13 INTELLIGENT EYE button • INTELLIGENT EYE operation. • COMFORT AIRFLOW operation.
Preparation before Operation ■■To set the batteries 2 1 3 Position ++ and –– correctly! Remote controller 1. Slide the front cover to take it off. 2. Set two dry batteries AAA.LR03 (alkaline). 3. Set the front cover as before. ■■To fix the remote controller holder on the wall 1. Choose a place from where the signals reach the unit. 2. Fix the holder to a wall, a pillar, or similar location with the screws procured locally. Screws Remote controller holder 3.
■■Turn the breaker on • After the power is turned on, the flap of the indoor unit opens and closes once to set the reference position. ■■To set the clock 1. Press . • “ • “ ” is displayed on the LCD. ” and “ ” blink. 2. Press to set the current day of the week. 3. Press . • “ 4. Press • Holding down 5. Press ” blinks. to set the clock to the present time. or rapidly increases or decreases the time display. . • Point the remote controller at the indoor unit when pressing the buttons.
AUTO · DRY · COOL · HEAT · FAN Operation The air conditioner operates with the operation mode of your choice. From the next time on, the air conditioner will operate with the same operation mode. ■■To start operation 1. Press and select an operation mode. • Each pressing of the button advances the mode setting in sequence. AUTO 2. Press DRY COOL HEAT FAN . •“ ” is displayed on the LCD. • The OPERATION lamp lights green. Display ■■To stop operation Press again. •“ ” disappears from the LCD.
■■To change the temperature setting Press . • The displayed items on the LCD will change whenever either one of the buttons is pressed. COOL operation HEAT operation AUTO operation 18–32°C 10–30°C 18–30°C Press to raise the temperature and press temperature. to lower the DRY or FAN operation The temperature setting is not variable.
Adjusting the Airflow Direction and Rate You can adjust the airflow direction to increase your comfort. ■■To start auto swing Up and down airflow direction Press . • “ ” is displayed on the LCD. • The flap (horizontal blade) will begin to swing. ■■To set the flap at desired position • This function is effective while flap is in auto swing mode. Press when the flap has reached the desired position. •“ ” disappears from the LCD.
■■To adjust the airflow rate setting Press . • Each pressing of Auto advances the airflow rate setting in sequence. Indoor unit quiet High Middle high Low Middle low Middle • When the airflow is set to “ ”, indoor unit quiet operation will start and the noise from the unit will become quieter. • In indoor unit quiet operation, the airflow rate is set to a weak level. • If the temperature does not reach the desired point in the indoor unit quiet operation, change the airflow rate setting.
COMFORT AIRFLOW Operation The flow of air will be in the upward direction while in COOL operation and in the downward direction while in HEAT operation, which will provide a comfortable wind that will not come in direct contact with people. ■■To start COMFORT AIRFLOW operation Press . • “ ” is displayed on the LCD. • Airflow rate is set to Auto. COOL/DRY: The flap will go up. HEAT: The flap will go down. .■■To cancel COMFORT AIRFLOW operation Press again.
INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. If no one is in the room for more than 20 minutes, the operation automatically changes to energy saving operation. ■■To start INTELLIGENT EYE operation Press . • “ ” is displayed on the LCD. • The INTELLIGENT EYE lamp lights green. Display ■■To cancel INTELLIGENT EYE operation Press again. • “ ” disappears from the LCD. • The INTELLIGENT EYE lamp goes off.
INTELLIGENT EYE Operation [Example] When no one is in the room When someone is in the room 20 minutes after, start energy saving operation Normal operation The air conditioner is in normal operation while the sensor is detecting the movement of people. The set temperature is shifted in ±2°C steps. Someone is back in the room Back to normal operation. The air conditioner will return to normal operation when the sensor detects the movement of people again.
POWERFUL Operation POWERFUL operation quickly maximises the cooling (heating) effect in any operation modes. You can get the maximum capacity. ■■To start POWERFUL operation Press during operation. • POWERFUL operation ends in 20 minutes. Then the system automatically operates again with the previous settings which were used before POWERFUL operation. •“ ” is displayed on the LCD. ■■To cancel POWERFUL operation Press •“ again. ” disappears from the LCD.
OUTDOOR UNIT QUIET Operation OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during the night. ■■To start OUTDOOR UNIT QUIET operation Press •“ . ” is displayed on the LCD. ■■To cancel OUTDOOR UNIT QUIET operation Press •“ [Example] again. ” disappears from the LCD. Using the OUTDOOR UNIT QUIET operation during the night. • The noise level of the outdoor unit will be lower.
ECONO Operation ECONO operation is a function which enables efficient operation by limiting the maximum power consumption value. This function is useful for cases in which attention should be paid to ensure a circuit breaker will not trip when the product runs alongside other appliances. ■■To start ECONO operation Press •“ during operation. ” is displayed on the LCD. ■■To cancel ECONO operation Press •“ again. ” disappears from the LCD.
OFF TIMER Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination. ■■To use OFF TIMER operation • Check that the clock is correct. If not, set the clock to the present time. 1. Press . • “ • “ •“ Page 10 ” is displayed on the LCD. ” blinks. ” and day of the week disappear from the LCD. 2. Press until the time setting reaches the point you like.
ON TIMER Operation ■■To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time. 1. Press . • “ • “ •“ Page 10 ” is displayed on the LCD. ” blinks. ” and day of the week disappear from the LCD. 2. Press until the time setting reaches the point you like. • Each pressing of either button increases or decreases the time setting by 10 minutes. Holding down either button changes the setting rapidly. 3. Press again.
WEEKLY TIMER Operation Up to 4 timer settings can be saved for each day of the week. It is convenient if the WEEKLY TIMER is set according to the family’s life style. ■■Setting example of the WEEKLY TIMER Example: T he same timer settings are made for the week from Monday through Friday while different timer settings are made for the weekend. [Monday] Make timer settings up to programs 1–4.
■■To use WEEKLY TIMER operation Setting mode • Make sure the day of the week and time are set. If not, set the day of the week and time. Page 10 Program 1 Program 2 ON OFF [Monday] Program 3 25°C 6:00 Program 4 ON OFF 27°C 8:30 17:30 22:00 Setting Displays Day and number 1. Press ON/OFF Time Temperature . • The day of the week and the reservation number of the current day will be displayed. • 1 to 4 settings can be made per day. 2.
WEEKLY TIMER Operation 6. Press to select the desired time. • The time can be set between 0:00 and 23:50 in 10 minute intervals. • To return to the ON/OFF TIMER mode setting, press • Go to step 9 when setting the OFF TIMER. 7. Press . . • The time will be set. •“ ” and the temperature blink. 8. Press to select the desired temperature. • The temperature can be set between 10°C and 32°C. COOL or AUTO: The unit operates at 18°C even if it is set at 10 to 17°C.
Copy mode • A reservation made once can be copied to another day of the week. The whole reservation of the selected day of the week will be copied. Program 1 Program 2 Program 3 ON [Monday] COPY OFF 25°C 6:00 17:30 22:00 Program 2 Program 3 ON [Tuesday] to [Friday] OFF 27°C 8:30 Program 1 Program 4 ON OFF ON 25°C 6:00 Program 4 OFF 27°C 8:30 17:30 22:00 Setting Displays Confirmation Copy Paste Normal 1. Press . 2. Press to confirm the day of the week to be copied. 3.
WEEKLY TIMER Operation ■■Confirming a reservation • The reservation can be confirmed. Setting Displays Normal Confirmation 1. Press . • The day of the week and the reservation number of the current day will be displayed. 2. Press to select the day of the week and the reservation number to be confirmed. • Pressing displays the reservation details. • To change the confirmed reserved settings, select the reservation number and press . The mode is switched to setting mode. Go to setting mode step 2.
■■To delete reservations The individual reservation 1. Press . • The day of the week and the reservation number will be displayed. 2. Press to select the day of the week and the reservation number to be deleted. 3. Press •“ . ” and “ 4. Press • Pressing ” or “ ” blink. and select “ blank ”. changes ON/OFF TIMER mode. Pressing alternates the following items appearing on the LCD in rotational sequence. • Selecting “blank” will cancel any reservation you may have. ON TIMER OFF TIMER 5.
Note for Multi System Multi system has one outdoor unit connected to multiple indoor units. ■■Selecting the operation mode With the priority room setting present but the priority unit inactive or not present. When more than one indoor unit is operating, priority is given to the first unit that was turned on. In this case, set the units that are turned on later to the same operation mode as the first unit.
■■COOL/HEAT mode lock The COOL/HEAT mode lock requires initial programming during installation. Please consult your authorized dealer for assistance. The COOL/HEAT mode lock sets the unit forcibly to either COOL or HEAT operation. This function is convenient when you wish to set all indoor units connected to the multi system to the same operation mode. NOTE • The COOL/HEAT mode lock cannot be activated together with the priority room setting.
Care and Cleaning ■■Quick reference How to open / close the front panel • Hold both ends of the front panel, and then pull to open it. • Press the front panel at both sides to close it. Cleaning parts Front Front panel panel Front panel • Wipe it with a soft cloth soaked in water. If bothered by dirt Refer to Page 32 Air filter • Vacuum dust or wash the filter. Once every 2 weeks Refer to Page 33 Titanium apatite photocatalytic air-purifying filter • Vacuum dust or replace the filter.
■■Removing the front panel 1. Remove the front panel. • Slide the front panel to either the left or right and pulling it toward you. This will disconnect the rotation dowel on one side. • Disconnect the front panel shaft on the other side in the same manner. 1) Slide 2) Pull 2. Clean the front panel. • Wipe it with a soft cloth soaked in water. • Only neutral detergent may be used. • In case of washing the panel with water, wipe it with dry soft cloth, dry it up in the shade after washing. 3.
Care and Cleaning ■■Air filter 1. Pull out the air filters. • Open the front panel. • Push the filter tab at the center of each air filter a little upwards, then pull it down. If the dust does not come off easily • Wash the air filters with neutral detergent thinned with lukewarm water, then dry them up in the shade. 1) Push 3. Set the filters as they were and close the front panel. • Press the front panel at both sides and the center. 2) Pull down 2.
■■Titanium apatite photocatalytic air-purifying filter 1. Take off the titanium apatite photocatalytic airpurifying filter. • Open the front panel and pull out the air filters. • Hold the recessed parts of the frame and unhook the 4 claws. [Replacement] Remove the filter from the filter frame and attach a new one. • Do not throw away the filter frame. Reuse the filter frame when replacing the titanium apatite photocatalytic air-purifying filter. • Dispose of the old filter as non-flammable waste.
Care and Cleaning ■ Check the units ■■Check that the base, stand and other fittings of the outdoor unit are not decayed or corroded. ■■Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. ■■Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. • If no drain water is seen, water may be leaking from the indoor unit. Stop operation and consult the service shop if this is the case. ■■Before a long idle period 1.
Troubleshooting ■■These cases are not troubles. • The following cases are not air conditioner troubles but have some reasons. You may just continue using it. Indoor unit The flap does not start swinging immediately. • The air conditioner is adjusting the position of the flap. The flap will start moving soon. The air conditioner stops generating airflow during operation.
Troubleshooting • Troubleshooting measures are classified into the following two types on a remedial basis. Take an appropriate measure according to the symptom. Not trouble • These cases are not troubles. Operation stopped suddenly. (OPERATION lamp flashes.) Check • Are the air filters clean? Clean the air filters. • Is there anything to block the air inlet or the outlet of the indoor and the outdoor units? • Turn the bleaker off and take all obstacles away.
Hot air does not flow out soon after the start of HEAT operation. The outdoor fan rotates while the air conditioner is not in operation. • The air conditioner is warming up. You should wait for 1 to 4 minutes. (The system is designed to start discharging air only after it has reached a certain temperature.) ■■ After operation is stopped • The outdoor fan continues rotating for another 60 seconds for system protection.
Troubleshooting ■■Call the service shop immediately WARNING ■■When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker off. • Continued operation in an abnormal condition may result in troubles, electric shocks or fire. • Consult the service shop where you bought the air conditioner. ■■Do not attempt to repair or modify the air conditioner by yourself. • Incorrect work may result in electric shocks or fire. • Consult the service shop where you bought the air conditioner.
■■Fault diagnosis by remote controller • The remote controller can receive a corresponding error code according to the fault from the indoor unit. 1. When is held down for 5 seconds, a “ ” indication blinks on the temperature display section. 2. Press repeatedly until a continuous beep is produced. • The code indication changes as shown below, and notifies with a long beep.
Troubleshooting ■■LED ON OUTDOOR UNIT PCB 3MXS, 4MXS, 5MXS series GREEN RED MICROCOMPUTER MALFUNCTION DETECTION NORMAL LED-A LED1 LED2 LED3 LED4 LED5 ● ● ● ● ● ● ● ● ● ● ● ● − − ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● − − − − − − ● ● ● ● DIAGNOSIS NORMAL CHECK INDOOR UNIT HIGH PRESSURE PROTECTOR WORKED OR FREEZE-UP IN OPERATING UNIT OR STAND-BY UNIT * OVERLOAD RELAY WORKED OR HIGH DISCHARGE PIPE TEMPERATURE FAULTY COMPRESSOR START INPUT OVERCURRENT * THERMISTOR O
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3P377621-3B 2014.
