Installation guide
2.
INDOOR
UNIT
INSTALLATION
2-1.
FIXING
OF
INSTALLATION
PLATE
*
Find
a
structural
material (such
as
a
stud)
in
the
wall
and
fix
installation
plate
(1)
horizon-
tally
with
fixing
screws
(2).
*
To
prevent
installation
plate
(1)
from
vibrating,
be
sure
to
install
the
fixing
screws
in
the
holes
indicated
in
the
illustration.
For
added
support,
fixing
screws
may
also
be
installed
in
other
holes.
*
When
bolts
recessed
in
the
concrete
wall
are
to
be
utilized,
secure
installation
plate
(1)
using
7/16
in.
x
13/16
in:
7/16
in. x
1
in.
(41
mm
*
20
mm
-
14
mm
*
26
mm)
oval hole
(17-3/4
in.
[450
mm]
pitch).
*
If
the
recessed
bolt
is
too
long,
change
it
for
a
shorter
one
available
in
the
market.
2-2.
WALL
HOLE
DRILLING
1)
Determine
the
wall
hole
position.
2)
Drill
a
dia.
2-9/16
in.
(65
mm)
hole.
The
outdoor
side
should
be
6/32
to
9/32
in.
(5 to
7
ram)
lower
than
the
indoor
side.
3)
Insert
wall
hole
sleeve
(C).
2-3.
CONNECTING
WIRES
FOR
INDOOR
UNIT
Note:
When
the
indoor
unit
is
powered
from
the
outdoor
unit,
a
disconnect
switch
needs
to
be
in-
stalled
to
power
supply
circuit
(between
indoor
and
outdoor
unit)
depending
on
local
code.
Remove
the
front
panel.
(Refer
to
5-1.)
Hook
the
upper
part
of
the
indoor
unit
on
the
installation
plate.
Remove
corner
box
and
conduit
cover.
Fix
conduit
pipe
(for
rear
piping)
/
elbow
joint
(for
right,
left,
or
downward
piping)
to
con-
duit
cover
with
lock
nut.
The
thread
part
of
installed
conduit
pipe
/
elbow
joint
appearing
inside
should
be
less
than
3/8
in.
(10
mm).
(Fig.
1)
Elbow
joint
should
appear
less
than
4-3/16
in.
(30
mm)
outside.
(Fig.
2)
5)
Process
the
end
of
ground
wire
(Fig.
3).
Connect
it
to
the
ground
terminal
of
electrical
parts
box.
6)
Process
the
end
of
indoor/outdoor
unit
connecting
wire
(A)
(Fig.
3).
Fix
it
to
terminal
block.
Be
careful
not
to
make
mis-wiring.
Fix
the
wire
to
the
terminal
block
securely
so
that
no
part
of
its
core
is
appeared,
and
no
external
force
is
conveyed
to
the
connecting
section
of
the
terminal
block.
7)
Firmly
tighten
the
terminal
screws
to
prevent
them
from
loosening.
After
tightening,
pull
the
wires
lightly
to
confirm
that
they
do
not
move.
8)
Secure
indoor/outdoor
unit
connecting
wire
(A)
and
the
ground
wire
with
conduit
cover.
Never
fail
to
hook
the
claw
of
the
conduit
cover
to
the
electrical
box.
Attach
the
conduit
cover
securely.
(Fig.
4)
9)
According
to
the
piping
direction,
cut
off
the
shaded
part
of
the
left
side
of
box
(Fig.
5)
or
corner
box
(Fig.6).
Reinstall
corner
box
and
front
panel.
i
ee
Pay
1)
2)
3)
4)
INDOOR
UNET
Grounding
Remark:
-
terminal**
*
Adisconnect
switch
should
Terminal
block
|
be
required.
Oo
“
Use
a
ring
tongue
terminal
in
order
to
connect
a
ALG
Disconnect
ground
wire
to
terminal.
i
—-T™
switch*
115V
AC
tphase,
60Hz
OUTDOOR
UNIT
t1SV
AC
Power
supply
|
.
115V
AC,
ie
ye]
iphase,
60H:
iphase
2wires,
|—o
60Hz
.
Ground
Grounding
terminal**
Eee
W
rar
INDOOR
UNIT
.
yar
WP
WW
rat
-
Grounding
Terminal
block
|terminal**
|
Remark
Oo
*
Adisconnect
switch
should
Sis2sg
be
required.
:
f.J--4.
1
Disconnect
“
Use
a
ring
tongue
terminal
i
eT
gswitch*
in
order
to
connect
a
208/230V
AC
©
ground
wire
to
terminal.
iphase,
60Hz
OUTDOOR
UNIT
Power
supply
208/230V
AC,
io
= x
iphase
2wires,
|
o3
60Hz
Lt
Ground
Grounding
terminal**
Z
Installation
plate
(1)
Sin.
{75
mm)
or
more
Wall
Align
the
plumb
Fixing
screw
(2)
fine
with
the
mark
Papeper
ie
Ceiling
Bind
the
line
to
the
center
hole.
Level
>
2-19/32
in.
(66
mm)
or
more
4-17/32
in.
(115
mm)
or
more
for
left
and
left
back
piping
(using
spacer)
s
as674
7
OST
Bo
a]
3
in.
o
yee
OF
(75
mm)
°
=
414A
°
-{
ormore
° .
.
f-«—_—___»
[oe
—=
(100
mm)
insert
Align
the
the
scale
with
Center
of
dia.
scale.
*_
|[
the
line.
*
2-9/16
in.
picea
(65
mm)
hole
*
Same
for
left
hole
©
2-9/16
in.
(65
mm)
Outdeor
side
6—_—____——
Lock
nut
Fixing
J
Ly
screw
og
|
.
Conduit
pipe
(for
rear
piping)
Conduit
cover
a
€»,
Elbow
joint
“<2
(for
right,
left,
or
downward
piping)
*
Connect
wires
to
the
matching
numbers
of
terminals
For
future
servicing,
give
extra
length
to
the
connecting
wires.
.
Indoor
terminal
block
Conduit
cover
(10
mm)
Lock
nut
Conduit
pipe
or
elbow
joint
Fi
ig.
Less
than
3/8
in.
1
Zt
(30
mm)
(for
right,
left,
or
downward
piping)
Less
than
1-3/16
in.
Elbow
joint
Fig.
2
.
19/32
in.
1in.
{15
mm)
{25
mm)
Lead
a
wire
Make
ground
wire
a
little
longer
than
others.
(More
than 1-9/16
in.
[40
mm])
Fig.
3
Hook
Conduit
cover
Fig.
4
Cut
off
in
case
of
left
piping
Cut
off
in
case
of
left-downward
piping
Fig.
5
Cut
off
in
case
of
downward
piping
Corner
box
4
in.
(25
mm)
Cut
off
in
case
of
right
piping
Fig.
6