1.3 Installin
g
the Indoor
U
nit
When
installing
optional
accessories,
read
the
installation manual
of
the
optional
accessories as well.
Depending
on
the
field
conditions,
it
may
be
easier
to
install
optional
accessories
before
the
indoor
unit
is
installed
(except
for
the
deco「ation
panel).
However,
for
an existing
ceiling,
install a
fresh
air
inlet
component
k仆 and
b
「
anch
duct
before
installing
the
unit.
1)
Install
the
indoor
unit
temporarily.
-
Attach
the
hanger
bracket
to
the
suspension
bolt.
Be
sure
to
fix
it
securely
by
using
a
nut
and
washer
from
the
upper
and
lower
sides
of
the
hanger
bracket.
-
Securing
the
hanger
bracket
:
see
figure
below
4)
Check
that
the
unit
is
horizontally
levelled.
-
Do
not
install
the
unit
tilted.
The
indoor
unit
is
equipped
with
a
built-in
drain
pump
and
float
switch.
(If
the
unit
is
tilted
against
the
direction
of
the
condensate flow
(the
drain
piping
side
is
raised),
the
float
switch
may
malfunction
and
cause
water
to
drip.)
-
Check
that
the
unit
is
levelled
at
all
four
come
「
s
using
a
water
level, or
a
water-filled
vinyl
tube,
as
shown
in
figure
below.
2
2
3
2
1
Water
level
2
Vinyl
Tube
5) Remove the paper pattern for Installation. (For new celling
only).
1
Nut (field supply)
2
Washer (field supply)
3
Hanger Bracket
4
Double Nuts (field supply,tighten)
2) Fix the paper pattern for installation. (For new ceilings only)
- The paper pattern fo
「
installation co
「
responds with the
measurements of the ceiling opening. Consult the builder for
details.
- The centre of the ceiling opening is indicated on the paper
pattern for installation.
- After removing the packaging material from the paper patten for
installation, attach the paper pattern for installation to the unit
with the attached sc「ews as shown in figure below.
2
3
1
Pape
「
P
attern
to
「
I
nstallation(on
some
models)
2
Center
of
the
C
eiling
O
pening
3
Screws(supplied
with
the
decoration
panel)
3)
Adjust
the
unit
to
the
correct
position
for
Installation.
(Refer
to
the
chapter
"Preparations
before
I
nstallation"
on
page
5.)
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