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wy
1-4.
SELECTING
PIPE
SIZE
AND
OPTIONAL
DIFFERENT-DIAMETER
JOINTS
The
diameter
of
connection
pipes
differs
according
to
the
type
and
capacity
of
indoor
units.
Match
the
diameters
of
connection
pipes
for
indoor
and
outdoor
units
according
to
the
following
table.
If
the
diameter
of
connection
pipes
does
not
match
the
diameter
of
pipe
end
connections,
use optional
different-diameter
joints.
[mm
(inch)]
15/17
5
(1/4)
/
12.7
(1/2)
Indoor
unit
Outdoor
unit
Dine
<i
og/t2
ipe
size
(liquid
/
gas)
6.35
(1/4)
/
9.52
(3/8) 6.3
A
UNIT
B
UNIT
6.35
(1/4)
/
9.52
(3/8)
-/-
-/
MAC-454JP
-5.
SELECTING
THE
INSTALLATION
LOCATION
Where
it
is
not
exposed
to
strong
wind.
Where
airflow
is
good
and
dustless.
Where
rain
or
direct
sunshine
can
be
avoided
as
much
as
possible.
Where
neighbours
are
not
annoyed
by
operation
sound
or
hot
air.
Where
rigid
wall
or
support
is
available
to
prevent
the
increase
of
op-
eration
sound
or
vibration.
Where
there
is
no
risk
of
combustible
gas
leakage.
When
installing
the
unit
at
a
high
level,
be
sure
to
secure
the
unit
legs.
Where
it
is
at
least
3
m
(9.84
ft)
away
from
the
antenna
of
TV
set
or
tadio.
Operation
of
the
air
conditioner
may
interfere
with
radio
or
TV
re-
ception
in
areas
where
reception
is
weak.
An
amplifier
may
be
required
for
the
affected
device.
Install
the
unit
horizontally.
Please
install
it
in
an
area
not
affected
by
snowfall
or
blowing
snow.
In
areas
with
heavy
snow,
please
install
a
canopy,
a
pedestal
and/or
some
baffle
boards.
Note:
It
is
advisable
to
make
a
piping
loop
near
outdoor
unit
so as
to
reduce
vibration
transmitted
from
there.
1
FREE
SPACE
REQUIRED
AROUND
OUTDOOR
UNIT
1.
Top
side
obstacles
When
there
is
an
obstacle
behind
the
rear side
only,
it
does
not
matter
if
|
a
100
(3.94)
or
more
there
is
an
obstacle
over
the top
side
as
shown
in
the
figure
below.
500
(19.68)
or
more
Ye
.
Obstacles
on front
(blowing)
side
only
In
this
case,
the
rear,
both
sides
and
top
should
be
open.
GB
|
500
(19.68)
or
more
VAL
Note:
When
operating
the
air
conditioner
in
low
outside
temperature,
be
sure
to
follow
the
instructions
described
below.
*
Never
install
the
outdoor
unit
in
a
place
where
its
air
inlet/outlet
side
may
be
exposed
directly
to
wind.
To
prevent
exposure
to
wind,
install
the
outdoor
unit
with
its
air
inlet
side
facing
the
wall.
To
prevent
exposure
to
wind,
it
is
recommended
to
install
a
baffle
board
on
the
air
outlet
side
of
the
outdoor
unit.
Avoid
the
following
places
for
installation
where
air
conditioner
trouble
is
liable
to
occur.
Where
flammable
gas
could
leak.
Where
there
is
much
machine
oil.
Salty
places
such
as
the
seaside.
Where
sulfide
gas
is
generated
such
as
a
hot
spring.
Where
there
is
high-frequency
or
wireless
equipment.
.
Front
(blowing)
side
open
As
long
as
space
like
the
one
shown
in
the
figure
can
be
las
7
maintained,
it
does
not
mat-
200
(7.87)
ter
if
there
are
obstacles
in
Ye
of
mote
three
directions
(but
top
side
L
is
open).
re
4oanCL
100
(3.94)
350
(13.78)
or
more
or
more
t t
.
Obstacles
on front
and
rear
side
only
The
unit
can
be
used
by
at-
taching
an
optional
outdoor
blowing
guide
(MAC-889SG)
(but
both
sides
and
top
are
open).
I
100
(3.94)
t
or
more
Blowing
guide
(MAC-889SG)
.
Service
space
Keep
the
service
space
as
shown
in
the
figure
below
for
mainte-
nance.
Service
space
100
(3.94)
or
more
500
(19.68)
or
more
100
(3.94)
or
more
500
(19.68)
or
more
350
(13.78)
or
more
| |
JG79A03SHO1_En.indd
3
When
installing
the
unit
in
an
area
that
is
enclosed
on
four
sides
such
as
a
verandah,
be
sure
to
leave
move
than
200
mm
(7.87
in.)
behind
the
unit
as
shown.
When
there
is
a
lack
of
airflow
or
there
is
a
possibility
of
becoming
short
cycle,
install
an
outlet
guide
and
make
sure there
is
enough
space
behind
the
rear
side
of
the
air
inlet.
Note:
Make
sure
not
to
install
several
outdoor
units
sideways
next
to
each
other.
Window
we
Yi
More
than
200
if
More
than
(7.87)
y
More
than
P V,
More
than
VA
350
(13.78)
100
(3.94)
VJ
200
(7.87)
—
yj
=44—~
More
than
200
(7.87)
Less
than
1,200
(47.3)
of
the
front
surface
side
(Unit:
mm
(inch)]
5/9/2008
2:23:41
PM
|
|
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