Hitachi Summit RAC-18YH5, Service Manual

Page: 14 / 96

Ð1
6
Ð
Cleaning
and
maintenance
m
ust
be
carr
ied
out
only
by
qualified
ser
vice
personal.
Bef
ore
cleaning,
stop
oper
ation
and
switch
off
the
po
w
er
supply
.
When
the
filter
indicator
lamp
comes
on,
be
sure
to
clean
the
filter
.B
y
doing
so
,the
po
w
er
rates
are
saved.
In
case
the
air
filter
is
full
of
dust,
the
air
flow
will
decrease
and
the
cooling
capacity
will
be
reduced.
Fur
ther
,noise
ma
y
occur
.B
e
sure
to
clean
the
filter
follo
wing
the
procedure
belo
w
.
PROCEDURE
Open
the
front
panel
carefully
and
remo
ve
the
filter
.
Vacuum
dust
from
the
air
filter
using
vacuum
cleaner
.
If
there
is
too
much
dust,
wash
the
filter
with
a
detergent
and
rinse
it
thoroughly
.After
that,
dr
y
it
in
the
shade
.
¥
Set
the
filter
with
ÒFRONTÓ
mark
facing
front,
and
slot
them
into
the
original
state.
¥
After
attaching
the
filters
,
push
the
front
panel
at
three
arro
w
por
tions
as
sho
wn
in
figure
and
close
it.
¥D
o
not
w
ash
with
hot
w
ater
at
more
than
40
¡C
.The
filter
ma
y
shr
ink.
¥
When
w
ashing
it,
shak
e
off
moisture
completely
and
dr
y
it
in
the
shade;
do
not
expose
it
directly
to
the
sun.
The
filter
ma
y
shr
ink.
¥
Don't
oper
ate
the
unit
without
filter
.Fault
ma
y
occur
if
yo
u
contin
ue
.
Ð1
7
Ð
¥
Remo
ve
the
front
panel
and
w
ash
with
clean
w
ater
.
W
ash
it
with
a
soft
sponge
.
After
using
neutral
detergent,
wash
thoroughly
with
clean
w
ater
.
¥
When
front
panel
is
not
removed,
wipe
it
with
a
soft
dry
cloth.
Wipe
the
remote
controller
thoroughly
with
a
soft
dry
cloth.
¥
Wipe
the
w
ater
thoroughly
.
If
water
remains
at
indicators
or
signal
receiver
of
indoor
unit,
it
causes
trouble.
Method
of
removing
the
front
panel.
Be
sure
to
hold
the
front
panel
with
both
hands
to
detach
and
attach
it.
Remo
ving
the
Front
Panel
Attaching
the
Front
Panel
¥
When
the
front
panel
is
fully
opened
with
both
hands
,
push
the
right
ar
m
to
the
inside
to
release
it,
and
while
closing
the
front
panel
slightly
,put
it
out
forw
ard.
¥M
ov
e
the
shafts
of
the
left
and
right
ar
ms
into
the
in
the
unit
and
securely
inser
tthem
into
the
holes
.
Shaft
Step
Hole
B
E
N
ZI
N
E
T
H
IN
N
E
R
A C I D
¥D
o
not
splash
or
direct
w
ater
to
the
body
of
the
unit
when
cleaning
it
as
this
ma
y
cause
shor
tcircuit.
¥
Never
use
hot
water
(above
40
¡C),
benzine,
gasoline,
acid,
thinner
or
a
brush,
because
they
will
damage
the
plastic
surface
and
the
coating.
¥
Run
the
unit
by
setting
the
oper
ation
mode
to
(FAN)
and
the
fa
n
speed
to
HI
fo
rabout
half
a
da
y
on
a
fine
da
y,
and
dr
y
the
whole
of
the
unit.
¥
Switch
off
the
po
w
er
plug
or
tur
n
off
the
circuit
break
er
.
Air Blow
– 12 –