FUJITSU ASTH07KNCA Comfort Single Room Solutions Instruction Manual

OPERATION MANUAL
AIR CONDITIONER (Wall Mounted type) MODEL:
ASTH07KNCA/ASTH09KNCA
ASTH12KNCA/ASTH14KNCA

ASTH07KNCA Comfort Single Room Solutions

• Check the model name.
  (Refer to the rating label.)
  Before using this product, read these instructions thoroughly and keep this manual for future reference.
  CAUTION
  R32
  REFRIGERANT
  This Air Conditioner contains and operates with refrigerant R32.
  THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
  Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance or service of this product.

SAFETY PRECAUTIONS

To prevent personal injury or property damage, read this section carefully before you use this product, and be sure to comply with the following safety precautions.
Incorrect operation due to failure to follow the instructions may  cause harm or damage, the seriousness of which is classified  as follows:
WARNING
This mark warns of death or serious injury.
CAUTION
This mark warns of injury or damage to property.
This mark denotes an action that is PROHIBITED.
This mark denotes an action that is COMPULSORY.
Explanation of symbols displayed on the indoor unit or outdoor unit.
WARNING
This symbol shows that this product uses a low burning velocity material. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire.
CAUTION
This symbol shows that the operation manual should be read carefully.
CAUTION
This symbol shows that a service personnel should be handling this equipment with reference to the installation manual.
CAUTION
This symbol shows that information is available such as the operating manual or installation manual.
**WARNING**

• When installing this product to an ventilated area, pay attention to prevent fire and explosion caused by the stagnated gas in case of refrigerant leakage. (For products which contain more than 1.842 kg refrigerant.)
• This product contains no user-serviceable parts. Always consult authorized service personnel for repairing, installation, and relocation of this product. Improper installation or handling will cause leakage, electric shock, or fire.
• In the event of a malfunction such as burning smell, immediately stop operation of the air conditioner, and disconnect all the power supply by turning off the electrical breaker or disconnecting the power plug. Then consult authorized service personnel.
• Take care not to damage the power supply cable. If it is damaged, it should be replaced only by authorized service personnel in order to avoid a hazard.
• If a refrigerant leakage is suspected, all naked flames shall be removed or extinguished, and consult authorized service personnel.
• In the event of a thunder storm or any prior sign of a lightning strike, turn off the air conditioner via the remote controller, and refrain from touching the product or the power source to prevent any electrical hazards.
• This product shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
• This product shall be stored in a well-ventilated area.
• Be aware that refrigerants may not contain an odor.
• This product shall be stored so as to prevent mechanical damage from occurring.
• Disposing of the product shall be done properly, in compliance with national or regional regulations.
• During transportation or relocation of the indoor unit, pipes shall be covered with the wall hook bracket for protection. Do not move this product by holding the indoor unit pipes. (The stress applied to the pipe joints may cause the flammable gas to leak during operation).
• This product is not intended for use by persons (including children)

WARNING

• Do not start or stop the operation of this product by inserting or pulling out the power plug, or by turning on or off the circuit breaker.
• Do not use flammable gases near this product.
• Do not expose yourself directly to the cooling airflow for many hours.
• Do not insert your fingers or any other objects into the outlet port or intake grille.
• Do not operate with wet hands.
• Do not use means to accelerate the defrosting process or to clean this product, other than those instructed in this manual.
• Do not pierce or burn.

CAUTION

• Provide occasional ventilation during use.
• Before cleaning this product, be sure to turn it off and disconnect all the power supply.
• Always operate this product with air filters installed.
• Ensure that any electronic equipment is at least 1 m (40 in) away from this product.
• Disconnect all the power supply when not using this product for extended periods.
• After a long period of use, ensure to get the mounting  of the indoor unit checked to prevent this product from falling down.
• The airflow direction and the room temperature should be carefully considered when you use this product in a room with infants, children, elderly or sick persons.
• Keep the surroundings of the outdoor unit clean and tidy, and do not place items around it. Any objects blocking or entering from the outlet ports may cause product malfunction.
• Do not direct the airflow at fireplaces or heating apparatus.
• Do not block or cover the intake grille and the outlet port.
• Do not apply any heavy pressure to radiator fins.
• Do not climb on, place objects on, or hang objects from this product.
• Do not place any other electrical products or household belongings under this product. Dripping condensation from this product might get them wet, and may cause damage or malfunction of your property.
• Do not expose this product directly to water.
• Do not use this product for preservation of food, plants, animals, precision equipment, art work, or other objects. This may cause quality deterioration of those items.
• Do not expose animals or plants to the direct airflow.
• Do not drink the drainage from the air conditioner.
• Do not pull the power supply cable.
• Do not touch the aluminum fins of heat exchange built-in this product to avoid personal injury when you maintain the unit.
• Do not stand on unstable steps when operating or cleaning this product. It may overturn and can cause injury.

This product contains fluoridated greenhouse gases.

PREPARATION

WARNING

• Take care to prevent infants and young children from  accidentally swallowing the batteries.

CAUTION

• If leaking battery fluid comes in contact with your skin, eyes, or mouth, immediately rinse with plenty of clean water, and consult your physician.
• Exhausted batteries must be removed immediately, and be disposed according to the local laws and regulations of your region.
• Do not attempt to recharge dry batteries.
• Do not use dry batteries that has been recharged.

Indoor unit accessories
Check that the following accessories are included.

Remote controller holder installation

2.1. Inserting batteries
Battery type: R03/LR03/AAA × 2

1~3. Put batteries as shown in the figure above.
4. Press **as shown in the figure above.
NOTES:**

• Use specified type of batteries only.
• Do not mix different types or new and used batteries together.
• Batteries can be used about 1 year in ordinary use.
• If the remote control range noticeably shortens, replace the batteries, and press ****as shown in the figure above.

NAME OF PARTS

CAUTION
For appropriate signal transmission between the remote controller and the indoor unit, keep the signal receiver away from the following items:

• Direct sunlight or other strong lights
• Flat-panel television screen

In rooms with instantaneous fluorescent lights, such as inverter type ones, the signal may not be transmitted properly. In such a case, consult the store of purchase.
3.1. Indoor unit
For Manual Auto operation and Filter indicator reset (Refer to page 10.)

1.  Before starting operation, make sure that the intake grille is closed completely. Incomplete closing may affect the proper function or performance of the product.
2. Indicator lamps light in the following conditions.

| Name| Color| Operation or condition
---|---|---|---
| Operation| Green| Normal operation
| Timer| Orange| Timer operation
| Economy| Green| Economy operation

3.2. Remote controller
CAUTION

• To prevent malfunction or damage of the remote  controller:
  – Place remote controller at where will not be exposed to direct sunlight or excessive heat.
  – Remove batteries if the product is not going to be used for an extended period.

• Obstacles such as a curtain or wall between the remote controller and the indoor unit may affect the appropriate signal transmission.

• Do not apply strong shocks to the remote controller.

• Do not pour water on the remote controller.

When you use the optional remote controller, the appearance and the operation procedure may differ.
For details, refer to the operation manual of each remote controller.

BASIC OPERATIONS

3 steps to start operation

1. Press ****/ to start or stop the operation.
2. Press MODE to select the operation mode. The operation mode changes as follows.
3. Press **** to set the desired temperature.
   The temperature changes by 0.5 °C increments.

Temperature setting range

Auto/Cooling/Dry| 18.0-30.0 °C
Heating| 16.0-30.0 °C

NOTES:

• In the Cooling or Dry mode, set the temperature lower than the current room temperature.

• In the Heating mode,
  – set the temperature higher than the current room temperature.
  – at the beginning of the operation, the indoor unit fan rotates at very low speed for 3-5 minutes.
  – the Automatic defrosting operation overrides the Heating operation when necessary.

• In the Fan mode, temperature control is not available.

AIRFLOW SETTINGS

5.1. Fan speed setting
Press FAN SPEED to control the fan speed.
The fan speed changes as follows.

When AUTO is selected, the fan speed depends on the operating condition.
NOTE : In the Dry mode, the fan speed is fixed to AUTO.
5.2. Airflow  direction setting
For details of the airflow ranges, refer to “Airflow direction  range”.
Up/down airflow direction setting
Press to adjust the up/down airflow direction.
Left/right airflow direction setting
CAUTION
Before you adjust the left/right airflow direction, make sure that the horizontal louver has been stopped completely.
Adjust two knobs of the vertical louvers by hand.
Swing operation setting
Press SWING to start/stop the Swing operation.
NOTE: The Swing operation may stop temporarily when the indoor unit fan is rotating at very low speed or is stopped
Air flow direction range
Up/down air flow direction

• The Swing operation range depends on the airflow direction set before the Swing operation.
  NOTES:

  • Do not adjust the horizontal louvers by hand.
  • In the Auto or Heating mode, the airflow direction stay position 1 for a while from the start of the operation.
  • In the Cooling or Dry mode, the downward airflow can change to the upper as follows. This feature is to prevent condensation from dripping and damaging your property.

Condition: Position 4-6 keeps for 30 minutes
Airflow adjusted to: Position 3

TIMER OPERATIONS

NOTE: When [ ] indicator on the indoor unit blinks, set the clock and timer again. This blinking shows that the internal clock goes wrong due to an interruption of the power supply.

1.  Press TIMER to choose timer operation.
   Each time you press the button, the timer operation will change as follows:

• To cancel the timer setting during the procedure, press CANCEL
• To set sleep timer, press ®SLEEP. (Refer to “6.3. Sleep timer”.)

Set each timer operation.
For details, refer to the following instructions of each timer  setting.
6.1.  On timer or Off timer

1. Select On timer or Off timer in step 1 of “Timer setting procedure.”
2. Each time you press ****the time changes as follows:

+ When you use the On timer, set the time while the ON indicator on the remote controller display is blinking
+ When you use the Off timer, set the time while the OFF indicator on the remote controller display is blinking
« To deactivate the On/Off timer, press CANCEL while  [ ON] or  [ OFF ] is shown on the remote controller display. The indicator wile disappear.
NOTE:
If you set the Sleep timer after setting the On/Off timer, the: On/Off timer is canceled
6.2. Program timer

1.  Set On timer and Off timer. (Refer to “6.1. On timer or Off timer™.)
2. Select Program timer in step 1 of “Timer setting procedure”.
   After the time set by the earlier timer passed, the timer set later will begin the counting down The order of the timer operation is displayed as follows:

NOTE: If you set the Sleep timer after setting the Program timer, the Program timer is canceled
6.3 Sleep timer
The Sleep timer supports your comfortable sleep by moderating the air conditioner operation gradually.
Press SLEEP.
Each time you press the button, the time changes as follows:

To repeat the timer, press the button when indicator is not  displayed
During the Sleep timer operation, the setting temperature changes as the following figure:

After the set time has elapsed, the air conditioner operation turns off.

ENERGY SAVING OPERATIONS

It saves more electricity than other operation modes by changing the set temperature to a moderate setting
Press ( ECONOMY to activate/deactivate the Economy  operation.
[ ] indicator on the indoor unit will turn on.

NOTES:

• In the Cooling, Heating, o Dry mode, the maximum output of this operation is approximately 70 % of usual operation.
• This operation cannot be performed during the temperature monitoring by the Auto mode.

7.2. Fan control for energy saving

In the Cooling operation, when the room temperature reaches the set temperature, the indoor unit fan rotates intermittently to save the power. (This function is deactivated at  the time of purchase.)
To change the setting, use the following steps;

1. Press ¢/| until the indicators on the remote controller turn off.

2. Press and hold FAN SPEED for more than 5 seconds.
   The and the current status will appear.
   ON : Activated
   OFF : Deactivated

3. Press ****to switch the status.

4. Press ¢/Ito send the setting to the indoor unit.
   The display will return to the original screen.

NOTE: If you do not press any buttons for 30 seconds after is  displayed, will turn off. In this case, repeat the setting from step 2

7.3. Demand Response
This product is designed to be compatible with Air Conditioning Demand Response program
To utilize the function, you need a separate arrangement  with your electricity supplier. Please check availability in the place of use
When your electricity supplier activates one of the following 3 Demand
Response (DR) modes, the air conditioner switches over to the appropriate operation
During the DR mode, [|] indicator on the indoor unit will blink
Blinking pattern and the intervals are as follows:

‘When the DR mode finishes, the air conditioner returns to the operation set before entering the DR mode.
M Details on Demand Response mode

with rated energy consumption)
DR mode 3| Electrical energy consumption in 30 minutes:  75% or less (compared with rated energy consumption)

NOTES:

• During the DR mode, the cooling or heating performance may be reduced
  During the DR mode, only the following operations are valid
  – Turing off the operation by ( ****/|
  – Off timer operation

• The Powerful operation is performed within the operable range of the DR mode

• During the DR mode, the Filter sign will not display

• Timer setting error indicator wile be prioritized over the DR mode indicator.

If you have operational issues:

1. Contact your electricity supplier to check whether they are activating the DR mode
2. Is the air conditioner under the Demand controlling?

OTHER OPERATION

In the Powerful operation, the air conditioner will operate at maximum  power and strong airflow to cool down or warm up the room quickly.
Press POWERFUL to activate/deactivate the Powerful operation.
When activated, the indoor unit will emit 2 short beeps.
When deactivated, the indoor unit will emit 1 short beep.
The Powerful operation will be muted off automatically in the following situations:

• The Powerful operation runs for a certain amount of time and the room temperature reaches the set temperature in the Cooling, Dry, or Heating mode:
• 20 minutes after the Powerful operation has started

NOTES:

• The airflow direction and the fan speed are controlled automatically.
• The Powerful operation cannot be performed simultaneously with Economy operation.
• If the wired remote controller (optional) is connected, this function is restricted

SETTINGS ON INSTALLATION

9.1. Remote controller custom code setting
By setting custom code of indoor unit and remote controller, you can specify the air conditioner which the remote controller controls. When two or more air conditioners are in the room and you wish to operate them separately, set the custom code (4 selections possible).
NOTE: If custom codes are different between the indoor unit and the remote controller, the indoor unit cannot receive a signal from the remote controller.
How to set the remote controller custom code

1. Press ****/I until the indicators on the remote controller turn  off.

2. Press down MODE for more than 5 seconds.
   The current custom code will be displayed (initially set to A).

3. Press *** to change the custom code between
   A(A) B (5) « C () =D (o). Match the custom code on the display to the air conditioner custom code.

4. Press MODE again.
   The custom code will be set.
   The display will return to the original display.

• To change the air conditioner custom code, contact authorized service personnel (initially set to A).
• If you do not press any buttons for 30 seconds after the custom code is displayed, the displayed custom code is set and the display returns to the original display.
• Depending on the remote controller, the custom code may return to A when replacing the batteries. In this case, reset the custom code as necessary. If you do not know the air conditioner custom code, try each code until you find the code which operates the air conditioner.

CLEANING AND CARE

CAUTION

• Before cleaning this product, be sure to turn it off and disconnect all the power supply.
• Before starting operation, make sure that the intake grille has been shut completely. Incomplete closing of the intake grille might have an effect on the proper working or performance of the air conditioner.
• If the filter cleaning involves high-place work, consult the authorized service personnel.
• Do not touch the aluminum fins of heat exchange built-in the indoor unit to avoid personal injury when you maintain the unit.
• Do not expose the indoor unit to liquid insecticides or hair sprays.
• Do not stand on slippery, uneven or unstable surfaces when you maintain the unit.

The frequency of the cleaning is as shown in the following table.

Cleaning indoor unit body
NOTES:

• Do not use water hotter than 40 °C.
• Do not use scouring cleanser, volatile solvents such as benzene or thinner.

1. Wipe the indoor unit body gently with a soft cloth moisten with warm water.
2. Wipe the indoor unit body gently with a dry and soft cloth.

Cleaning air filter

1. Open the intake grille.

2. Remove the air filters.
   Lift up the air filters’ handle, disconnect the two lower tabs, and pull out.

3. Remove the dust in either of the following ways.
   • Cleaning with vacuum cleaner.
   • Washing with mild detergent and warm water. After washing, dry the air filters thoroughly in shade.

4. Replace the air filters.
   Align the sides of the air filter with the panel, and push in fully. Make sure to the two lower tabs are returned to their holes in the indoor unit properly.

5. Close the intake grille.
   Press 4 places on the intake grille to close it completely.

NOTE: If dirt accumulates on the air filter, airflow will be reduced, operating efficiency will lower, and the noise will increase.
Removing and installing intake grille
Removing intake grille

1. Open the intake grille.
2. While pressing the left and right mounting shafts outward gently, pull the intake grille.

Installing intake grille

1. While holding the intake grille horizontal, set the left and right mounting shafts into the pillow blocks at the top of the front panel. Insert the shaft until it snaps to latch each shaft properly.
2. Close the intake grille.
3. Press 4 places on the intake grille to close it completely.

After extended non-use of the unit
If you have shut down the indoor unit for 1 month or more, perform the Fan mode operation for half a day to dry the internal parts thoroughly before the normal operation.
Additional inspection
After long period of use, accumulated dust inside the indoor unit may reduce the performance even if you have maintained the unit properly.
In such a case, a product inspection is recommended.
For more information, consult authorized service personnel.
Filter indicator reset (Special setting)
This function can be used if set correctly during installation. Consult authorized service personnel in order to use this function.
Clean the air filter when the indicator lamp shows the following:

After cleaning, reset the filter indicator by pushing on the indoor unit  for 2 seconds or less. (Refer to page 3.)

• Heating performance
  This air conditioner operates on the heat-pump principle, absorbing heat from air outdoors and transferring that heat to the indoor unit. As a result, the operating performance is reduced as outdoor air temperature drops.
  If you feel that the heating performance is insufficient, we recommend you to use this air conditioner in conjunction with other kinds of heating appliance.

• Automatic defrosting operation
  When outdoor temperature is very low with high humidity, frost may form on the outdoor unit during the heating operation, and it could reduce the operating performance of the product.
  For frost protection, an automatic defrost function is equipped in this air conditioner.
  If frost forms, the air conditioner will temporarily stop, and defrost circuit will operate briefly (maximum of 15 minutes.)
  [ I] indicator on the indoor unit blinks during this operation.
  If frost forms on the outdoor unit after the Heating operation, the outdoor unit will stop automatically after it operates for a few minutes. Then the Automatic defrosting operation starts.

• Auto-restart function
  In event of power interruption such as a blackout, the air conditioner stops once. But it restarts automatically and performs previous operation when the power supply is resumed.
  If any power interruption occurs after the timer is set, counting down of the timer will be reset.
  After the power supply is resumed, [ ] indicator on the indoor unit blinks to notify you that there has been a timer fault. In such a case, reset the clock and timer settings.

• Malfunctions caused by other electrical devices
  Use of other electrical appliances such as an electric shaver or nearby use of a wireless radio transmitter may cause the malfunction of the air conditioner.
  If you encounter such a malfunction, turn off the circuit breaker once.
  Then turn it on again, and resume operation by using the remote controller.

• Indoor unit temperature and humidity range
  Permissible ranges of temperature and humidity are as follows:

*1) If the air conditioner is used continuously for many hours, water may condense on the surface and drip.

• If the unit is operated under the conditions except the permissible temperature range, the air conditioner operation may stop because of the automatic protection circuit working.
• Depending on the operating conditions, the heat exchange may freeze, causing water leakage or other malfunction (in the Cooling or Dry mode).

Other information

• Do not use the air conditioner for any purpose other than room cooling/dry, room heating or fan.
• For the permissible ranges of temperature and humidity for the outdoor unit, refer to the outdoor unit installation manual.

OPTIONAL PARTS

12.1. Wired remote controller
The optional wired remote controller can be used.
You can use wired and wireless remote controller together.
However, some functions of the wireless remote controller are restricted.
If you set the restricted functions, beeping sound will be heard, [I ], [ ], and [ ] indicators on the indoor unit will blink.