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Drainage
1. Run the drain hose sloped downwards.
NOTE
• The hole should be made at a slight downward slant on the outdoor side.
Do not rise the
drain hose.
50 mm
or more
Do not put the
drain hose end
into water.
2. Put water in the drain pan and make sure that the water is drained out of
doors.
3. When connecting extension drain hose, insulate the connecting part of
extension drain hose with shield pipe.
Installation Place
• A place which provides the spaces around the outdoor unit as shown in the
diagram
• A place which can bear the weight of the outdoor unit and does not allow an
increase in noise level and vibration
• A place where the operation noise and discharged air do not disturb your
neighbors
• A place which is not exposed to a strong wind
• A place free of a leakage of combustible gases
• A place which does not block a passage
• When the outdoor unit is to be installed in an elevated position, be sure to
secure its feet.
• An allowable length of the connecting pipe is up to 10 m.
• An allowable height level is up to 5 m.
• A place where the drain water does not raise any problems
CAUTION
1. Install the outdoor unit without anything blocking the air discharging.
2. When the outdoor unit is installed in a place always exposed to strong
wind like a coast or on a high storey of a building, secure the normal
fan operation using a duct or a windshield.
3. In particularly windy areas, install the unit such as to avoid admission
of wind.
4. Installation in the following places may result in trouble.
Do not install the unit in such places.
• A place full of machine oil
• A saline-place such as the coast
• A place full of sulfi de gas
• A place where high-frequency
waves are likely to be generated
as from audio equipment, welders,
and medical equipment
Do not form the
drain hose into
a wavy shape.
Do not put the
drain hose end
in the drainage ditch.
OUTDOOR UNIT
OUTDOOR UNIT
Strong
wind
Shield pipe
Drain hose
CAUTION
Arrange the drain pipe for proper drainage from the unit.
Improper drainage can result in dew-dropping.
This air conditioner has the structure designed
to drain water collected from dew, which forms
on the back of the indoor unit, to the drain pan.
Therefore, do not store the power cord and other
parts at a height above the drain guide.
Refrigerant Piping Connection
Flaring
1. Cut the pipe with a pipe cutter.
90
2. Insert a fl are nut into the pipe and fl are the pipe.
• Projection margin in fl aring : A (Unit : mm)
RIDGID (clutch type)
Outer dia.
of copper pipe
Ø6.35
Ø9.52
IMPERIAL (wing nut type)
A
Outer dia. of copper pipe
Die
Pipe
Tightening connection
Align the centers of the connecting pipes and tighten the fl are nut as far as
possible with your fi ngers. Then tighten the nut with a spanner and torque
wrench as shown in the fi gure.
CAUTION
Do not apply excess torque. Otherwise, the nut may crack depending on
the conditions.
Outer dia. of copper pipe
Ø6.35 mm
Ø9.52 mm
6
Extension drain hose
Inside the room
Space for pipes
Obliquity
Roughness
Conventional tool
R410A tool used
0 to 0.5
0 to 0.5
Ø6.35
Ø9.52
Tightening torque
16 to 18 (1.6 to 1.8 kgf·m)
30 to 42 (3.0 to 4.2 kgf·m)
Wall
Drain
guide
Warp
used
1.0 to 1.5
1.0 to 1.5
R410A
1.5 to 2.0
1.5 to 2.0
(Unit : N·m)
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