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1-3.
SELECTING
OPTIONAL
DIFFERENT-DIAMETER
JOINTS
lf
the
diameter
of
connection
pipe
does
not
match
the
port
size
of
outdoor
unit,
use optional
different-diameter
joints
according
to
the
following
table.
(Unit:
mm
(inch))
Port
size
of
outdoor
unit
Optional
different-diameter
joints
(port
size
of
outdoor
unit
—
diameter
of
connection
pipe)
MXZ-3B
|
MXZ-4B
Liquid
/
Gas
AUNIT
6.35
(4/4)
/
12.7
(4/2)
B-C
UNITE
~D
UNIT]
6.35
(1/4)
/
9.52
(3/8)
Refer
to
the
installation
manual
of
indoor
unit
for
the
diameter
of
connection
pipe
of
indoor
unit.
6.35
(4/4)
9.52
(3/8)
:
PAC-493P
9.52
(3/8)
>
12.7
(1/2)
:
MAC-454JP
9.52
(3/8)
—
15.88
(5/8)
:
PAC-SG76RJ
42.7
(1/2)
>
9.52
(3/8)
:
MAC-A455JNP
42.7
(1/2)
>
15.88
(5/8)
:
MAC-A456JP
1-4.
SELECTING
THE
INSTALLATION
LOCATION
°
Where
it
is
not
exposed
to
strong
wind.
°
Where
airflow
is
good
and
dustless.
e
Where
rain
or
direct
sunshine
can
be
avoided
as
much
as
possible.
e
Where
neighbours
are
not
annoyed
by
operation
sound
or
hot
air.
°
Where
rigid
wall
or
support
is
available
to
prevent
the
increase
of
operation
sound
or
vibration.
°
Where
there
is
no
risk
of
combustible
gas
leakage.
*
When
installing
the
unit,
be
sure
to
secure
the
unit
legs.
°
Where
it
is
at
least
3
m
(10
ft.)
away
from
the
antenna
of
TV
set
or
radio.
Operation
of
the
air
conditioner
may
interfere
with
radio
or
TV
reception
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
vibra-
tion
transmitted
from
there.
FREE
SPACE
REQUIRED
AROUND
OUTDOOR
UNIT
1.
Obstacles
above
When
there
is
no
obstacle
in
front
and
on
the
sides
of
the
unit,
it
is
allowed
to
install
the
unit
where
an
obstacle
is
above
the
unit
only
if
the
space
shown
in
the
figure
is
provided.
UT
100
(3-15/16)
or
more
500
(19-11/16)
or
more
|
a
XS
3.
Obstacles
in
front
(blowing)
only
———$_$_.
When
there
is
an
obstacle
in
front
of
the
unit
as
shown
in
the figure,
open
space
above,
behind,
and
on
the
sides
of
the
unit
is
required.
it
|
500
(19-11/16)
or
more
5.
Obstacles
in
front,
behind
and
on
side(s)
————---___
¢
When
installing
the
unit
in
an
area
that
is
enclosed
with
walls
such
as
a
verandah,
be
sure
to
have
enough
space
as
shown
below.
In
this
case,
the
air
conditioning
capacity
and
power
consumption
might
deteriorate.
¢
When
installing
two
or
more
units,
do
not
install
the
units
in
front
or
be-
hind
each
other.
200
(7-7/8)
or
more
100
(3-15/16)
4
—
380
(13-25/32)
oo
or
more
or
more
soo
(19-1116)
|
500
(19-11/16)
ormore
or
more
Height
of
the
obstacle
is
1200
(47-1/4)
or
less
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
li-
able
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.
e
Where
there
is
high-frequency
or
wireless
equipment.
°
Where
there
is
emission
of
high
levels
of
VOCs,
including
phthalate
com-
pounds,
formaldehyde,
etc.,
which
may
cause
chemical
cracking.
2.
Front
(blowing)
side
open
As
long
as
space
indicated
in
the
figure
is
provided,
it
is
allowed
to
install
the
unit
where
obstacles
are
behind
and
on
the
sides
of
the
unit.
(No
ob-
stacle
above
the
unit)
200
(7-7/8)
or
more
Ye
—_—
Co)
EO
Ut
100
(3-15/16)
or
more
| | | |
350
(13-25/32)
or
more
M1
1 1
4,
Obstacles
in
front
and
behind
The
unit
can
be
used
by
attaching
an
optional
outdoor
blowing
guide
(MAC-856SG)
(but
both
sides
and
top
are
open).
f
100
(3-15/16)
or
more
500
(19-11/16)
or
more
Blowing
guide
(MAC-856SG)
6.
Service
space
Provide
space
for
service
and
maintenance
as
shown
in
the figure.
Service
space
100
(3-15/16)
or
more
lf
500
(19-11/16)
or
more
4
100
(3-15/16)
or
more
350
(13-25/32)
or
more
350
(13-25/32)
or
more
(Unit:
mm
(inch))
En-2
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