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For right rear piping
1. Route the indoor tubing and the drain hose in the
direction of rear right.
2. Insert the connecting cable into the indoor unit
from the outdoor unit through the piping hole.
• Do not connect the cable to the indoor unit.
• Make a small loop with the cable for easy
connection later.
3. Tape the tubing, drain hose, and the connecting
cable. Be sure that the drain hose is located at the
lowest side of the bundle. Locating at the upper
side can cause drain pan to overflow inside the
unit.
NOTE: If the drain hose is routed inside the room,
insulate the hose with an insulation material* so that
dripping from "sweating"(condensation) will not damage
furniture or floors.
*Foamed polyethylene or equivalent is recommended.
4. Indoor unit installation
• Hook the indoor unit onto the upper portion of the
installation plate.(Engage the two hooks of the rear
top of the indoor unit with the upper edge of the instal-
lation plate.) Ensure that the hooks are properly seat-
ed on the installation plate by moving it left and right.
Press the lower left and right sides of the unit against
the installation plate until the hooks engage into their
slots(clicking sound).
Drain hose
Tape
Connecting
pipe
Drain hose
Connecting cable
Connecting
cable
Drain hose
4. Connecting the pipings to the indoor unit and drain
hose to drain pipe.
• Align the center of the pipes and sufficiently tighten
the flare nut by hand.
Indoor unit tubing
• Tighten the flare nut with a wrench.
Wrench
Indoor unit tubing
Outside diameter
mm
Ø6.35
Ø9.52
Ø12.7
• When extending the drain hose at the indoor unit,
install the drain pipe.
Drain pipe
Adhesive
5. Wrap the insulation material around the connecting
portion.
• Overlap the connection pipe insulation material and
the indoor unit pipe insulation material. Bind them
together with vinyl tape so that there is no gap.
Plastic bands Insulation material
• Wrap the area which accommodates the rear piping
housing section with vinyl tape.
Connection
pipe
Vinyl tape
(wide)
Connecting cable
Vinyl tape(narrow)
-23-
Flare nut
Pipes
Open-end wrench (fixed)
Flare nut
Connection pipe
Torque
kg . m
inch
1/4
1.8
3/8
4.2
1/2
5.5
Indoor unit drain hose
Vinyl tape(narrow)
Indoor
unit pipe
Wrap with vinyl tape
Pipe
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Table of Contents
Troubleshooting
