Hitachi RAD-25NH7 Service Manual page 23

MAINTENANCE
! WARNING
G
Before cleaning, stop unit operation with the remote controller and turn off the circuit breaker.
! CAUTION
G
Do not expose the unit to water as it may cause an electric shock.
G
For cleaning inside the air conditioner, consult your sales agent.
G
Avoid using detergent when cleaning the heat exchanger of the indoor unit. Unit failure may result.
G
When cleaning the heat exchanger with a vacuum cleaner, make sure to wear gloves so as not to injure
your hands on the heat exchanger fins.
1. AIR FILTER
Clean the air filter, as it removes dust inside the room. Be sure to clean
the filter once every two weeks so as not to consume electricity
unnecessarily.
PROCEDURE
1
Pull the filter toward the center until it detached from the holders.
Then take it out from holders
(refer to diagram).
2
Remove dust from the filter using a vacuum cleaner. If there is
too much dust, use neutral detergent. After using neutral
detergent, wash with clean water and dry in the shade.
3
Install the filters.
Gently insert back the filter into the holders.
!
CAUTION
G
Do not wash with hot water at more than 40°C. The filter may shrink.
G When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to
the sun. The filter may shrink.
G
Do not operate the air conditioner with the filter removed. Dust may enter the air conditioner and
cause trouble.
– 21 –
Pull
Indoor unit
Holders
Holders