Toshiba RAS-18J2AVSG-E Installation Manual Download

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Drain
guide

Space for pipes

Wall

Shield pipe

Inside the room

Drain hose

Extension drain hose

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.

CAUTION

OUTDOOR UNIT

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 length of the connecting pipe.

Models

RAS-18J2AVSG-E RAS-22J2AVSG-E RAS-24J2AVSG-E

Chargeless

Up to 15 m

Maximum length

20 m

25 m

Additional
refrigerant charging

16 - 20 m

(20 g / 1 m)

16 - 20 m

(20 g / 1 m)

16 - 25 m

(20 g / 1 m)

Maximum refrigerant
charging

1.2 kg

1.34 kg

• The allowable height of outdoor unit installation site.

Models

RAS-18J2AVSG-E RAS-22J2AVSG-E RAS-24J2AVSG-E

Maximum

height

12 m

15 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 sul

de gas

• A place where high-frequency

waves are likely to be generated
as from audio equipment, welders,
and medical equipment

Strong

wind

• 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.

Precautions about Installation in Regions

with Snowfall and Cold Temperatures

Snow protection plate

Snow protection hood

Snow accumulation line

Holding frame

At least
50 cm

Install at least 50 cm
above the snow
accumulation line.

Anchor
bolts

Front

Obliquity

Roughness

Warp

Refrigerant Piping Connection

1. Cut the pipe with a pipe cutter.

2. Insert a

are nut into the pipe and

are the pipe.

•

Projection margin in

aring : A (Unit : mm)

RIDGID

(clutch type)

Outer dia.

of copper pipe

R32 tool used

Conventional tool

used

Ø6.35

0 to 0.5

1.0 to 1.5

Ø9.52

0 to 0.5

1.0 to 1.5

Ø12.70

0 to 0.5

1.0 to 1.5

Pipes thickness

0.8 mm or more

Flaring

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.

Do not form the
drain hose into
a wavy shape.

Do not rise the
drain hose.

50 mm
or more

Do not put the
drain hose end
into water.

Do not put the
drain hose end
in the drainage ditch.

Drainage

1. Run the drain hose sloped downwards.

NOTE

• The hole should be made at a slight downward slant on the outdoor side.

When the outdoor unit is installed in a place where the drain water might
cause any problems, Seal the water leakage point tightly using a silicone
adhesive or caulking compound.

CAUTION

Use a scale having a precision with at least 10 g per index line when adding
the refrigerant.
Do not use a bathroom scale or similar instrument.

Precautions for adding refrigerant