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9-3. Outdoor Unit
9-3-1. Accessory and
Installation Parts
Outdoor unit installation manual x 1
Specifications x 1
Owner's manual x 1
S
PEC
IF
IC
ATIO
NS
1
2
3
9-3-2. Refrigerant Piping
• Piping kit used for the conventional refrigerant
cannot be used.
• Use copper pipe with 0.8 mm or more thick-
ness.
• Flare nut and flare works are also different from
those of the conventional refrigerant. Take out the
flare nut attached to the main unit of the air condi-
tioner, and use it.
9-3-3. Installation Place
• A place which provides the spaces around the
outdoor unit.
• 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 which does not block a passage.
• When the outdoor unit is to be installed in an
elevated position, be sure to secure its feet.
• There must be sufficient spaces for carrying the
unit into and out of the site.
• A place where the drain water does not raise any
problem.
9-3-4. Optional Installation Parts
(Local Supply)
CAUTION
1. Install the outdoor unit without anything
blocking the air discharging.
2. When the outdoor unit is installed in a place
exposed always to a strong wind like a coast
or on a high story of a building, secure the
normal fan operation using a duct or a wind
shield.
3. Specially in windy area, install the unit to
prevent the admission of wind.
A
B
C
Parts name
Refrigerant piping
Liquid side : Ø6.35 mm
Gas side : Ø9.52 mm or Ø12.7 mm
Pipe insulating material
(polyethylene foam, 6 mm thick)
Putty, PVC tapes
Q’ty
Each one
1
Each one
9-3-5. Optional Installation Parts
(Separate Sold)
Parts name
RB-M43RE Reducer (Ø12.7 → Ø9.52)
RB-M34EE Expander (Ø9.52 → Ø12.7)
Strong
wind
Fig. 9-3-1
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 place full of sulfide gas.
• A place where high-frequency waves are
likely to be generated as from audio
equipment, welders, and medical equip-
ment.
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