
28
Cassette-Type
Air
Conditioner
Maintenance
and
Service
CAUTION
Before
performing
any
maintenance,
turn
off
the
main
power
to
the
system.
Indoor
Unit
Outdoor
Unit
Maintenance
and
Service
Grille,
Case
and
Remote
Control
Turn
the
system
off
before
cleanining,
To
clean,
wipe
with
a
soft,
dry
cloth.
Do
not
use
bleach
or
abrasives.
Supply
power
must
be
disconnected
before
cleaning
the
indoor
unit.
NOTICE
Remove
the
Air
filters.
Take
hold
of
the tab
and
pull
slightly
forward
to
remove
the
filter.
Never
use
any
of
the
followings:
?
Water
hotter
than
40°C.
Could
cause
deformation
and/or
discoloration.
?
Volatile
substances.
Could
damage
the
surfaces
of
the
air
conditioner.
The
heat
exchanger
coils
and
panel
vents
of
the
outdoor
unit
should
be
checked
regularly.
If
clogged
with
dirt
or
soot,
the
heat
exchanger
and
panel
vents
may
be
professionally
steam
cleaned.
Dirty
or
clogged
coils
will
reduce
the
operating
efficiency
of
the
system
and
cause
higher
operating
costs.
NOTICE
Air
Filters
The
air
filters
behind
the
front
grille
should
be
checked
and
cleaned
once
every
2
weeks
or
more
often
if
neccessary.
CAUTION:
When
the
air
filter
is
to
be
removed,
do
not
touch
the
metal
parts
of
the
indoor
unit.
It
may
cause
an
injury.
Clean
dirt
from
the
air
filter
using
a
vacuum
cleaner
or
washing
with
water.
If
dirt
is
conspicuous,
wash
with
a
neutral
detergent
in
lukewarm
water.
If
hot
water
(50°C
or
more)
is
used,
it
may
be
deformed.
After
washing
with
water,
dry
well
in
the
shade.
Do
not
expose
the
air
filter
to
direct
sunlight
or
heat
from
a
fire
when
drying
it.
Install
the
air
filter.
Benzene
SCOURING
CLBARGER
SINNER
Anti-biofilter
Remote
Controller
Air
Outlet
Air
Outlet
Air
Intake
(side,
rear)
Connecting
Wire
Drain
Hose
Connection
Pipe
Power
Wire
Air
Intake
Rack
Air
Filter
1
2
3
4
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