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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.
Shield pipe
Drain hose
Inside the room
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.
• The allowable pipe length is up to 15 m for RAS-05, 07, 10, 13BAVG-E and
20 m for RAS-16BAVG-E. If the length is over 15 m, add 20 g of refrigerant
for every additional meter of the pipe length.
• The allowable height of outdoor-unit installation site is up to 12 m.
• A place where the drain water does not raise any problems
Precautions about Installation in Regions
with Snowfall and Cold Temperatures
• Do not use the supplied drain nipple for draining water. Drain the water
from all the drain holes directly.
• To protect the outdoor unit from snow accumulation, install a holding
frame, and attach a snow protection hood and plate.
* Do not use a double-stacked design.
Snow protection plate
Front
Snow protection hood
At least
50 cm
Snow accumulation line
Anchor
bolts
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 sul¿ de gas
• A place where high-frequency
waves are likely to be generated
as from audio equipment, welders,
and medical equipment
01_1118350101-1 EN.indd 6
Extension drain hose
OUTDOOR UNIT
Install at least 50 cm
above the snow
accumulation line.
Holding frame
Strong
wind
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 À are nut into the pipe and À are the pipe.
• Projection margin in À aring : A (Unit : mm)
RIDGID (clutch type)
Outer dia.
R32 tool used
of copper pipe
Ø6.35
0 to 0.5
Ø9.52
0 to 0.5
Ø12.70
0 to 0.5
Pipes thickness
IMPERIAL (wing nut type)
A
Outer dia. of copper pipe
Die
Pipe
Pipes thickness
Tightening connection
Align the centers of the connecting pipes and tighten the À are nut as far as pos-
sible with your ¿ ngers. Then tighten the nut with a spanner and torque wrench
as shown in the ¿ gure.
Half union
Externally
threaded side
Use a wrench to secure.
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
Ø12.70 mm
6
Wall
Drain
guide
Space for pipes
Obliquity
Roughness
Warp
Conventional tool
used
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
0.8 mm or more
R32
Ø6.35
1.5 to 2.0
Ø9.52
1.5 to 2.0
Ø12.70
2.0 to 2.5
0.8 mm or more
Flare nut
Internally
threaded side
Use a torque wrench to tighten.
(Unit : N·m)
Tightening torque
16 to 18 (1.6 to 1.8 kgf·m)
30 to 42 (3.0 to 4.2 kgf·m)
50 to 62 (5.0 to 6.2 kgf·m)
6/27/2559 BE 4:46 PM
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