Refrigerant Piping; Installation Place; Optional Installation Parts (Local Supply); Optional Installation Parts (Separate Sold) - Toshiba RAS-3M26YAV-E Instructions Pour L'installation

Refrigerant Piping

• Piping kit used for the conventional refrigerant cannot
be used.
• Use copper pipe with 0.8 mm or more thickness.
• 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 conditioner, and use it.

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.
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.
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 equipment.
Optional Installation Parts
(Local Supply)
Parts name
Refrigerant piping
A Liquid side : Ø6.35 mm
Gas side : Ø9.52 mm or Ø12.7 mm
Pipe insulating material
B
(polyethylene foam, 6 mm thick)
C Putty, PVC tapes
Strong
wind
Q'ty
Each
one
1
Each
one
Optional Installation Parts
(Separate Sold)
RB-M43RE Reducer (Ø12.7 → Ø9.52)
RB-M34EE Expander (Ø9.52 → Ø12.7)

Refrigerant Piping Connection

CAUTION
KEEP IMPORTANT 4 POINTS FOR PIPING WORK
1. Take away dust and moisture.
(Inside of the connecting pipes)
2. Tight connection (between pipes and unit)
3. Evacuate the air in the connecting pipes using
VACUUM PUMP .
4. Check gas leak. (connected points)
Flaring
1. Cut the pipe with a pipe cutter.
90˚
2. Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured
for R410A are recommended.
However, the conventional
tools can be used by
adjusting projection
margin of the copper
pipe.
• Projection margin in flaring : B (Unit : mm)
Rigid (Clutch type)
Outer dia.
R410A tool used
of copper
R410A
pipe
6.35 0 to 0.5
9.52 0 to 0.5
12.7 0 to 0.5
Imperial (Wing nut type)
Outer dia. of copper pipe
6.35
9.52
12.7
6
Parts name
Obliquity Roughness
Conventional tool used
R22 R410A
(Same as left) 1.0 to 1.5 0.5 to 1.0
(Same as left) 1.0 to 1.5 0.5 to 1.0
(Same as left) 1.0 to 1.5 0.5 to 1.0
R410A
1.5 to 2.0 1.0 to 1.5
1.5 to 2.0 1.0 to 1.5
2.0 to 2.5 1.5 to 2.0
Warp
B
R22
R22