47
12.2.3 Indoor Unit Installation
12.2.3.1 For the Right Rear Piping
12.2.3.2 For the Right and Right Bottom
Piping
12.2.3.3 For the Embedded Piping
(This can be used for left rear piping also.)
● Do not turn over the unit without it’s shock absorber during pull out the piping.
Pull out the Indoor piping
It may cause intake grille damage.
● Use shock absorber during pull out the piping to protect the intake grille from damage.
Intake grille
Piping
pull ou
t the
pip
ing
Shock absorber
Piping
pull ou
t the
pip
ing
Install the Indoor Unit
Pull out the Indoor piping
Step-2
Secure the Indoor Unit
Insert the power supply cord and connection cable
Step-1
Step-3
Step-4
• Insert the cables from bottom of the unit through the control board hole until
terminal board area.
Install the Indoor Unit
Pull out the Indoor piping
Step-2
Insert the power supply cord and connection cable
Secure the Indoor Unit
Step-1
Step-3
Step-4
• Insert the cables from bottom of the unit through the control board hole until
terminal board area.
• Use a spring bender or equivalent to bend the piping so that the piping is not
crushed.
• When determining the dimensions of the piping, slide the unit all the way to the
left on the installation plate.
• Refer to the column “Cutting and flaring the piping”.
Bend the embedded piping
Cut and flare the embedded piping
Change the drain hose position
Pull the connection cable into Indoor Unit
• The power supply cord and indoor unit and outdoor unit connection cable can
be connected without removing the front grille.
• Please refer to “Connecting the piping” column in outdoor unit section.
(Below steps are done after connecting the outdoor piping and gas-leakage
confirmation.)
Connect the piping
• Please refer to “Insulation of piping connection” column as mentioned in
indoor/outdoor unit installation.
Install the Indoor Unit
Secure the Indoor Unit
Insulate and finish the piping
Step-1
Step-2
Step-3
Step-4
Step-5
Step-6
Step-7
Step-8
•
Fasten the chassis to the installation plate with screws
(Self purchase, Screw size: M4, max. length 10mm)
to provide a neat appearance of indoor unit.
Holes at
Installation
plate
Screw
slot at
chassis
Screw
(2 location)
Cover for the
bottom piping
Tape it with piping
in a position as
mentioned in Fig.
below.
Cover for the
right piping
Piping
Drain hose
Cover
for the
left
piping
Right and Right bottom piping
Cover
for
piping
How to keep the cover
In case of the cover is cut, keep the cover at the
rear of chassis as shown in the illustration for
future reinstallation.
(Left, right and 2 bottom covers for piping.)
Guide
surface
Connection
cable
About
70 – 80 mm
Connection
cable
Gas side
piping
Liquid
side
piping
Drain
hose
Insert the connection cable
To take out the unit,
push the
marking at
the bottom unit, and pull
it slightly towards you
to disengage the hooks
from the unit.
g
n
i
k
r
a
m
Secure the Indoor Unit
Press the lower left and right side of the unit
against the installation plate until hooks
engages with their slot (sound click).
Installation
plate
Unit’s hook
Right Rear piping
Cover for the
bottom piping
Cover for the
bottom piping
Tape it with piping
in a position as
mentioned in Fig.
below.
Cover for the
right piping
Drain hose
Cover
for the
left
piping
Piping
Install the indoor unit
Hook the indoor unit onto the upper portion of
installation plate.
(Engage the indoor unit with the upper edge of the
installation plate). Ensure the hooks are properly
seated on the installation plate by moving it in left
and right.
There is an option to use the holder at the rear of
chassis to prop up the indoor unit as shown in the
illustration for ease of installation.
Push the holder back to original position before
secure the indoor unit.
Alternatively, bottom plate of the indoor unit can be
removed to enlarge the space for installation.
Please refer column “How to take out front grille”.
Drain hose
Sleeve for piping
hole
Indoor
unit
Hooks at
installation plate
Holder
Piping
•
Press the area of orange
color to release holder.
•
1 holder (Z20***, XZ20***,
Z25***, XZ25***, Z35***,
XZ35***, Z42***) or
2 holder (Z50***, XZ50***,
Z71***)