8
English
Indoor Unit Installation
3-2. Left-side, left-back, or left-bottom piping
1) Attach the drain hose to the underside of the refrigerant pipes
with adhesive vinyl tape.
2) Be sure to connect the drain hose to the drain port in place of
a drain plug.
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 set the indoor
unit on mounting plate hooks, using the
markings at the top of the indoor unit as
a guide.
5) Pull in the inter-unit wire.
6) Connect the inter-unit pipes.
7) Wrap the refrigerant pipes and drain hose together with insulation tape as
shown in the figure on the right (in case of setting the drain hose through
the back of the indoor unit.
8) While exercising care so that the inter-unit wire does not catch indoor unit,
press the bottom edge of indoor unit with both hands until it is firmly caught
by the mounting plate hooks. Secure indoor unit to the mounting plate with
indoor unit fixing screws (M4 × 12L).
3-3. Wall embedded piping
Follow the instructions given under left-side, left-back, or left-bottom piping.
1) Insert the drain hose to this depth so it won’t be pulled out of the drain pipe.
How to replace the drain plug and drain hose
• Replacing onto the left side
1) Remove the insulation fixing screw on the
right and remove the drain hose.
2) Remove the drain plug on the left side and
attach it to the right side.
3) Insert the drain hose and tighten with
included insulation fixing screw.
* (Forgetting to tighten this may cause
water leakages.)
Drain hose attachment position
* The drain hose is on the back of the unit.
Front side of unit
Attachment on the right side (factory default)
Attachment on the left side
Drain hose
Drain hose
Insulation
fixing screw
Insulation
fixing screw
Left side
Right side
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
How to set 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 and cause drain leakage
from the plug.
Insert a hexagonal wrench (4mm).
Drain
hose
Caulk this hole
with putty or
caulking material.
Bind with adhesive
vinyl tape.
Mounting plate
Wrap insulating tape around the
bent portion of refrigerant pipes.
Overlap at least half the width of
the tape with each turn.
Refrigerant
pipes
Drain hose
Bottom frame
Indoor unit fixing screw
(M4 × 12L) (2 locations)
Mounting
plate
Inter-unit wire
Inner wall
Vinyl chloride
drain pipe
(VP-30)
Drain hose
50mm
or more
Insert drain hose
to this depth so
it won’t be pulled
out of drain pipe.
Outer wall
3PEN393185-7L.book Page 8 Friday, February 26, 2016 7:49 AM
Summary of Contents for ATXM20M2V1B
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