19
1
2
3
4
Fig. 27 --- Installation Clearances
(1.) Ceiling slab
(2.) Expansible hook (optional)
(3.) Installation hook (optional)
(4.) False ceiling
NOTE: For other installation than standard installation, contact
your dealer for details.
INDOOR UNIT INSTALLATION
When installing optional accessories, review the list of optional
accessories in the installation manual. Depending on the field
conditions, it may be easier to install optional accessories before
the indoor unit is installed (except for the decoration panel).
However, for existing ceiling, install the fresh air inlet component
kit and branch duct before installing the unit.
1. Install the indoor unit temporarily.
a. 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.
b. Securing the hanger bracket (see Fig. 28).
-
1
3
4
2
Fig. 28 --- Secure the Hanger bracket
(1.) Nut (field supply)
(2.) Washer (field supply)
(3.) Hanger bracket
(4.) Double nuts (field supply, tighten)
2. Secure the paper pattern for installation (for new ceilings
only).
S The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder
for details.
S The center of the ceiling opening is indicated on the paper
pattern for installation.
S After removing the packaging material from the paper
pattern for installation, attach the paper pattern to the unit
with the attached screws (see Fig. 29).
Fig. 29 --- Attach Screws
(1.) Paper pattern for installation (on some models)
(2.) Center of the ceiling opening
(3.) Screws (supplied with the decoration panel)
3. Adjust the unit to the right position for installation. Refer to
the chapter “Preparations Before Installation”.
4. Check if the unit is horizontally leveled.
a. 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 c ondensateflow (thedrain
piping side is raised), the float switch may malfunction and
cause water to drip).
b. Check if the unit is leveled at all four corners with a water
level or a water--filled vinyl tube (see Fig. 30).
Fig. 30 --- Ensure Unit is level
(1.) Water level
(2.) Vinyl tube
DRAIN PIPING WORK
Drain Piping Installation
Install the drain piping as shown in Fig. 31 and take steps to
eliminate condensation. Improperly rigged piping could lead to
leaks and eventually wet furniture and belongings.
1-1.5m
1
3~5ft
Fig. 31 --- Drain Piping Installation
Fig. 32 --- Hanging Bar
(1.) Hanging bar
(2.)
1/100 gradient
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