En-6
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 lter when the lter indicator appears.
2. After cleaning, reset the lter indicator.
* For detailed instructions on how to operate, refer to the operation
manual of the remote controller.
9. GENERAL INFORMATION
■
Inverter
At the start of operation, large amount of power is used to bring the room
quickly to the desired temperature. Afterwards, the unit automatically
switches to a low power setting for economic and comfortable operation.
■
Heating performance
This air conditioner operates on the heat-pump principle, absorbing heat
from the 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 insucient, 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 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 briey (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.
■
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.
■
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, disconnect the power supply once.
Then reconnect it, and resume operation by using the remote controller.
■
Indoor unit temperature and humidity range
Permissible ranges of temperature and humidity are as follows:
Indoor temperature Cooling/Dry [°F (°C)] 64 to 89 (18 to 32)
Heating [°F (°C)] 60 to 86 (16 to 30)
Indoor humidity [%] 80 or less *
1)
*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 exchanger may freeze,
causing water leakage or other malfunction. (in the Cooling or Dry mode).
■
When indoor and outdoor temperatures are high
When both indoor and outdoor temperatures are high during use of the
Heating mode, the outdoor unit’s fan may stop at times.
■
Low ambient cooling
When the outdoor temperature drops, the outdoor unit’s fans may switch
to low speed, or one of the fans may stop intermittently.
■
Other information
• Do not use the air conditioner for any purpose other than room
cooling/dry, room heating, or fan.
• During the Heating mode, the top of the indoor unit may become
warm, but this is due to the fact that coolant is circulated through the
indoor unit even when it is stopped; it is not a malfunction.
■
Emergency heat (Special setting)
An auxiliary heater can be used instead of the outdoor unit if the auxiliary
heater is connected and the function is set correctly during installation.
Consult authorized service personnel to use this function.
<To activate/deactivate this function>
When using the wired remote controller, follow the operation manual of
the wired remote controller.
When using the IR receiver unit, press
on the indoor unit for 2
seconds or less during the Heating operation.
During the Emergency heat operation, [
] indicator lamp will blink
(3 seconds on, 1 second o).
10. OPTIONAL PARTS
10.1. Remote control
The remote controller is optional. You can select from the
following types of remote control.
- Wireless remote controller
- Wired remote controller
- Wireless LAN control
To check the available model of remote controller, consult authorized
service personnel.
NOTE: Depending on the remote control, some function may be
restricted. Refer to the operation manual of the remote
controller or WLAN adapter for details.
You can use both wireless and wired remote controller together.
However, some functions of the wireless remote controller may be restricted.
Firmware update
When using the wireless LAN control, the rmware will be updated as
necessary.
CAUTION
Do not pull out the power plug nor turn o the circuit breaker
during the rmware update of the indoor unit or WLAN
adapter. It may cause malfunction.
For WLAN adapter
The rmware of the WLAN adapter may be updated automatically.
During the updating, you cannot operate the air conditioner from the
mobile app. It will take for a maximum of 5 minutes.
For indoor unit
The rmware of the indoor unit may be updated. You can set the
schedule of the updating or update the rmware manually from the
mobile app. For details, refer to the operation manual for the mobile
app.
During the updating, the air conditioner stops the operation. It will take
for a maximum of 30 minutes.
10.2. Multiple remote controller
You can connect two wired remote controllers to one air conditioner.
Either remote controller can control the air conditioner.
However, the timer functions cannot be used by the secondary unit.
9384329042-01_OM.indb 6 22-Dec-22 17:18:50
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