Hitachi airHome RAD-DJ18QHAE Operation Manual page 7

THE IDEAL WAYS OF OPERATION
Suitable Room Temperature
!
Warning
Freezing temperature is bad for health
and a waste of electric power.
Ventilation
!
Caution
Do not close the room
for a long period of time.
Occasionally open the door
and windows to allow the
entrance of fresh air.
Effective Usage Of Timer
At night, please use the "OFF or ON timer or
SLEEP timer operation mode", together with your
wake up time in the morning.
This will enable you to enjoy
a comfortable room
temperature. Please use
the timer effectively.
FOR USER'S INFORMATION
The Air Conditioner And The Heat Source In The Room
! Caution
If the amount of heat in the room is above the cooling capability of the
air conditioner (for example: more people entering the room, using heating
equipments and etc.), the preset room temperature cannot be achieved.
When the indoor unit is not to be used for a long period of time, please
switch off the power from the mains. If the power from mains remains
"ON", the indoor unit still consumes about 10W (depends on outdoor unit
connected) in the operation control circuit even if it is in "OFF" mode.
! Warning
To protect the whole unit during lightning, please stop operating the
unit and remove the plug from the socket.
!
Caution
To avoid noise interference, please place the indoor unit and its remote
controller at least 1m away from electrical products.
Not Operating For A Long Time
When Lightning Occurs
Interference From Electrical Products
– 7 –
Install curtain or blinds
Do Not Forget To Clean The Pre-Filter
Dusty air fi lter will reduce the
air volume and the cooling
effi ciency. To prevent from
wasting electric energy,
please clean the fi lter every
2 weeks.
Please Adjust Suitable Temperature
For Baby And Children
Please pay attention to
the room temperature and
air fl ow direction when
operating the unit for baby,
children and old folks who
have diffi culty in movement.
It is possible to reduce
heat entering the room
through windows.