General Information - Fujitsu ACY63-KA Operation Manual

2. 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 fi lters thoroughly in shade.
3. Install the air fi lters.
Fit each air fi lter to the 4 hooks on the indoor unit.
Hooks
Hooks
■ When the rear hooks cannot be released
Remove the air fi lters
Remove the 4 hooks shown in the fi gure, and pull out the left air fi lter.
When the right air fi lter comes to the fore, remove the hooks in the
same way and remove it.
Hooks
Hooks
Install the air fi lters
(1) Fit the right air fi lter to the 4 hooks on the indoor unit.
(2) Slide the air fi lter until it reaches the edge.
* There are also 4 hooks on the opposite side. Make sure that
the air fi lter is fi t in these hooks.
(3) Fit the left air fi lter to the 4 hooks on the indoor unit.
Hooks
Hooks
En-5
Hooks
Hooks
Hooks
Hooks
After extended non-use of the unit
If you do not use this product for 1 month or more, perform the Fan
mode operation for half a day to dry the internal parts thoroughly before
you perform normal operation.
Additional inspection
After long period of use, accumulated dust inside the indoor unit may
reduce the product performance even if you have maintained the unit
with instructed daily care or cleaning procedures written in this manual.
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.
1. Clean the air fi lter when the fi lter indicator appears.
2. After cleaning, reset the fi lter indicator.
* For detailed instructions on how to operate, refer to the operation
manual of the remote controller.

8. GENERAL INFORMATION

■ Inverter
On start-up, the air conditioner will operate at maximum capacity to
bring the room quickly down to desired temperature.
Once the temperature in the room begins to achieve the set
temperature, the air conditioner will reduce its capacity and energy
usage to the minimum capacity and input ratings.
■ 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 insuffi cient, we recommend
you to use this air conditioner in conjunction with other kinds of heating
appliance.
Consult with your installation technician to ensure the unit is correctly
sized for the room space required.
Heat-pump air conditioners heat your entire room by recirculating air
throughout the room, with the result that some time may be required
after fi rst starting the air conditioner until the room is heated.
■ 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, a microcomputer-controlled automatic defrost
function is equipped in this air conditioner.
If frost forms, the air conditioner will temporarily stop, and defrost circuit
will operate briefl y (maximum of 15 minutes.)
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.
If you set to the Heating operation during the Automatic defrosting
operation, the Automatic defrosting operation will continue. The Heating
operation will begin after completion of defrosting. As a result, It may
take some time before warm air is emitted.
■ Hot start
The indoor unit prevents cold drafts when the Heating operation be-
gins.
The indoor unit fan will not operate or it will operate at a very low speed
until the heat exchanger reaches the set temperature.
■ Auto-restart function
In Event of Power Interruption
Should the power supply to the air conditioner be interrupted by a power
failure, the air conditioner will restart automatically in the previously
selected mode once the power is restored.