7
■
English
Indoor Unit Installation
3-2� Left-side, left-back, or left-bottom piping
1) Switch around the drain plug and drain hose.
3) Switch around the drain hose and drain plug.
1) Remove the fixing screw and
pull out the drain hose.
How to switch around the drain plug and drain hose
Push the drain plug all the
way in using a hexagonal
wrench (3/16 inch (4mm)).
Hexagonal wrench
(3/16 inch (4mm))
Drain plug
No gap
Do not apply lubricating oil
(refrigerant oil) to the drain
plug when inserting it.
The application of lubrication
oil to the drain plug will
deteriorate the plug to cause
drain leakage from the plug.
Insert drain hose securely
and fix in place with fixing
screw.
Drain hose
Fixing screw
Insert a hexagonal
wrench (3/16 inch (4mm)).
2) Pull out
drain plug.
Drain hose
Pull out
drain hose.
2
1
Remove fixing
screw.
2) Attach the drain hose to the underside of the refrigerant
pipes with adhesive vinyl tape.
Remove pipe port cover here for
left-bottom piping.
Remove pipe port
cover here for
left-side piping.
Left-bottom piping
Left-side piping
Left-back piping
3) Shape the refrigerant pipes along
the pipe path marking on the
A
mounting plate.
4) Pass the drain hose and
refrigerant pipes through the wall
hole, then position the indoor unit
on the
A
mounting plate hooks,
using the markings at the top
of the indoor unit as a guide.
Mounting plate
A
Drain
hose
Caulk this
hole with
putty or
caulking
material.
Mounting plate
A
Wrap insulation tape from the right end
all the way to the left end of the pipe that
passes through the back of the indoor unit.
Overlap at least half the width of the tape
with each turn.
J
Bind with adhesive vinyl tape.
If any gap is left or if the
refrigerant pipe is bound too
tightly, condensation and
dripping may result.
5) Open the front panel (Refer to “
Installation Tips”on page 10),
then open the service lid (Refer to “
Indoor Unit Installation
Diagram”on page 4).
6) Pass the inter-unit wire from the outdoor unit through the feed-
through wall hole and pass to the front of indoor unit from the
back. Then pull them at front side. Bend the ends of cable tie
wires upward for easier work in advance. (If the interunit wire
ends are to be stripped first, bundle wire ends with adhesive
tape.)
7) Connect the refrigerant pipes.
8) In case of pulling the drain hose through the back of the indoor
unit, wrap the refrigerant pipes and drain hose together with
J
insulation tape as shown in the right figure.
9) Press the bottom frame of the indoor unit with both hands until
it is firmly caught by the
A
mounting plate hooks. Make sure
that the wires do not catch on the edge of the indoor unit.
A
Wire guide
Hang indoor unit on the hooks of
mounting plate.
Inter-unit
wire
Mounting
plate
Refrigerant pipes
Drain hose
(Be sure the drain
hose is lower)
Bottom frame
Mounting
plate
A
Secure the indoor unit to the
mounting plate with the
indoor unit fixing screws
M4 × 1/2” (M4 × 12mm)(2 points).
A
H
Insulation tape
J
Wrap with vinyl tape so that no gap is left and the slit in the
thermal insulation pipe is facing upward.
Thermal insulation pipe
Slit
Slit
Vinyl tape
3-3� Wall embedded piping
Follow the instructions given under left-side, left-back, or
left-bottom piping.
1) Insert the drain hose to a depth of 1-15/16 inches
(50mm) or more so it will not be pulled out of the drain
pipe.
Inner wall
Vinyl chloride
drain pipe
(VP-30)
Drain hose
1-15/16”
(50mm)
or more
Insert the drain hose
to this depth so it will
not be pulled out of
the drain pipe.
Outer wall
01_EN_3P654325-1B.indd 7
2021/08/27 13:37:33
