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
on
the upper and
lower sides of the hanger bracket
, as shown in the figure
below.
1 Nut (field supply)
2 Washer (field supply)
3 Hanger bracket
4 Double nuts (field supply,
tighten)
1.3 Install the indoor unit
When installing optional accessories, read the installation
manual
for
optional accessories. Depending on field conditions, it
may be easier to install optional accessories before
installing
the
indoor unit (except for the decoration panel).
However, for
an
existing ceiling, install
the
fresh air inlet component kit
and
branch duct before installing the unit.
2)
Fix the paper pattern for installation (
f
or new ceilings only)
- The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder for
details.
- The cent
e
r of the ceiling opening is indicated on the paper
pattern
for installation.
- After removing the packaging material from the paper patten for
installation, attach
i
t to the unit
with the attached screws
,
as
shown in
the
figure below.
3) Adjust the unit to the right position for installation
Refer to "Preparations before installation" on page 5.
1 Paper pattern for installation
(on some models)
2 Center of the ceiling opening
3 Screws
(supplied with the decoration panel)
1
2
3
4
1
2
3
4)
Check if the unit is horizontally level
- 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.
-
With a water level or water-filled vinyl tube, c
heck if the unit is
level at all four corners
,
as shown in
the
figure below.
1 Water level
2 Vinyl tube
5) Remove the paper pattern for installation (
f
or new ceiling
only)
1
1
2
2
6
