Hitachi RAS-70YH7 Service Manual page 23

THE IDEAL WAYS OF OPERATION
Suitable Room Temperature
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.
Do Not Forget To Clean The Pre-Filter
Dusty pre-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.
Warning
!
Freezing temperature
is bad for health and
a waste of electric
power.
Install curtain or blinds
Effective Usage Of Timer
At night, please use the "OFF or ON 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.
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.
– 22 –
It is possible
to reduce heat
entering the
room through
windows.