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Indoor Unit Installation
3.
Laying piping, hoses, and wiring
3-1. Right-side, right-back, or right-bottom piping
1) Attach the drain hose to the underside of the refrigerant pipes with
an adhesive vinyl tape.
2) Wrap the refrigerant pipes and drain hose together with insulation
tape.
Right-bottom
piping
Right-side piping
Right-back piping
Bind refrigerant
pipe and drain
hose together with
insulating tape.
Remove pipe port cover
here for right-side piping.
Remove pipe port cover
here for right-bottom piping.
3) Pass the 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.
Mounting plate
A
3-2. Left-side, left-back, or left-bottom 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.
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) Be sure to connect the drain hose to the drain port in place of a
drain plug.
How to set drain plug.
No gap.
Do not apply lubricating
oil (refrigeration oil)
when inserting.
Application of causes
deterioration and drain
leakage of the plug.
Insert a hexagonal wrench 3/16” (4mm).
4) Shape the refrigerant pipes 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.
Drain
hose
Caulk this hole
with putty or
caulking material.
Bind with vinyl
tape.
A Mounting plate
Wrap insulating tape around the
bent portion of refrigerant pipes.
Overlap at least half the width of
the tape with each turn.
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.
9) While exercising care so that the inter-unit wire do 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 3/16 × 1/2 inch (M4 × 12mm).
Refrigerant
pipes
Drain hose
Bottom frame
H Indoor unit fixing screw
3/16” × 1/2” (M4 × 12mm)
(2 locations)
Mounting
plate
A
Inter-unit wire
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10/18/2011 2:00:51 PM