9 ■English
Indoor Unit Installation
4.
Laying piping, hoses, and wiring
• The recommended installation method is back piping.
• When performing side piping (b), refer to 5. Side piping on page 10.
In the case of bottom piping (c), refer to 6. Bottom piping on page 10.
4-1. Right-back piping
1) Attach the drain hose to the underside of the refrigerant pipes with
adhesive vinyl tape.
2) Wrap the inter-unit wire, refrigerant pipes and drain hose together
with insulation tape.
3) Pass the inter-unit wire, drain hose and refrigerant pipes through the wall hole,
then set the indoor unit on the mounting plate hooks by using the markings at
the top of the indoor unit as a guide.
4-2. Left-back piping
1) Replace the drain plug and drain hose.
2) Attach the drain hose to the underside of the refrigerant
pipes with adhesive vinyl tape.
3) Be sure to connect the drain hose to the drain port in place
of a drain plug.
4) Shape the refrigerant pipe along the pipe path marking on the mounting plate.
5) Pass 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 indoor unit as a guide.
6) Pull in the inter-unit wire.
7) Connect the inter-unit pipes.
8) Wrap the refrigerant pipes and drain hose
together with insulation tape as right figure, in
case of setting the drain hose through the back
of the indoor unit.
(a) Back piping Normal installation Refer to page 9
(b) Side piping Service parts use Refer to page 10
(c) Bottom piping Paper pattern use Refer to page 10
Bind refrigerant pipe and drain hose
together with adhesive vinyl tape.
Left side
Right side
(b)
(b)
(c)
(c)
(a)
(a)
Mounting plate
A
• 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.)
How to replace the drain plug and drain hose
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
Right sideLeft side
How to set drain plug
No gap
Insert a hexagonal wrench (4mm).
Do not apply lubricating oil
(refrigeration oil) when inserting.
Application of causes deterioration
and drain leakage of the plug.
Drain hose
Bind with
adhesive
vinyl tape.
A Mounting plate
Caulk this hole
with putty or
caulking material.
Wrap insulating tape around the bent portion
of refrigerant pipe.
Overlap at least half the width of the tape
with each turn.
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