■
English
7
Indoor Unit Installation
3-2. Left-side, left-back, or left-bottom piping
1) Switch around the drain plug and drain hose.
2) Attach the drain hose to the underside of the refrigerant
pipes with adhesive vinyl tape.
3) Shape the refrigerant pipes along the pipe path marking
on the
mounting plate.
4) Pass the drain hose and refrigerant pipes through the
wall hole, then position the indoor unit on the
mounting
plate hooks, using the
markings at the top of the indoor
unit as a guide.
5) Open the front panel, then open the service lid. (Refer to
“
Service lid
” on page 4.)
6) Pass the inter-unit wire from the outdoor unit through the
feed-through wall hole and then through the back of the
indoor unit. Pull them through the front side. Bend the ends
of tie wires upward for easier work in advance.
(If the inter-unit 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
insulation tape as shown in the figure.
9) Press the bottom frame of the indoor unit with both hands
until it is firmly caught by the
mounting plate hooks.
Make sure that the wires do not catch on the edge of the
indoor unit.
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.
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.
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
A
Wrap insulation tape
around the bent portion
of refrigerant pipe.
Overlap at least half the
width of the tape with
each turn.
A Mounting
plate
Bind with adhesive vinyl
tape.
If any gap is left or if the
refrigerant pipe is bound
too tightly, condensation
and dripping may result.
Caulk this
hole with
putty or
caulking
material.
Drain
hose
K
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
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
A
K
A
Inner wall
Vinyl chloride
drain pipe (VP-30)
Drain hose
φ
1-3/16” (30mm) or more
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_3P686877-1A.fm 7 ページ ２０２２年６月１日 水曜日 午後１２時３２分
