Installation Of Outdoor Unit - Toshiba RAS-B10GKVP-E Service Manual

10-5. Installation of Outdoor Unit

10-5-1. Installation Location
• A place which provides enough space 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 neighbors.
• A place which is not exposed to a strong wind.
• A place free of combustible gases.
• A place which does not block a passageway.
• When the outdoor unit is to be installed in an
elevated position, be sure to secure its feet.
• Piping connections to the outdoor unit should be
arranged in the sequence A, then B, starting from
the bottom. (For each piping connection, the gas
pipe is on the bottom and the liquid pipe on top.)
• When multiple indoor units are to be connected to
the outdoor unit, make sure the ends of the pipes
and wires from each indoor unit are connected to
the outdoor unit correctly.
(Problems caused by indoor units being connected
to the outdoor unit incorrectly are very common in
multiple-unit installations.)
• The length and height differences of the connect-
ing pipes, between the indoor and outdoor units,
must be within the ranges indicated below.
• Total piping length: Two room (A + B) Multi
• This air conditioner accepts a connection
piping length of up to 30 m.
• There is no need to add refrigerant as long
as the length of the connection piping is 20
m or less.
Installation diagram
of outdoor units
100 mm or more
from wall
200 mm or more
When installing the outdoor unit,
leave open in at least two of
directions (A), (B), (C) and (D)
shown in the right figure.
Fig. 10-5-1
80 mm or more only
when unobstructed to the
front and both sides
50 mm or more
In principle,
from wall
leave open
(C)
(B)
Ensure sufficient space
to allow drainage
– 68 –
• You will need to add 20 g of refrigerant per
meter of added connection piping for installa-
tions requiring connection piping to be
between 21 m to 30 m.
• Minimum piping length: A or B = 2 m or more
• Maximum indoor piping length:
A or B = 20 m or less
• Maximum piping height difference:
A or B = 10 m or less
• Maximum piping / height difference between two
rooms = 10 m or less
• If the outdoor unit is to be mounted on a wall,
make sure the platform supporting it is sturdy
enough.
The platform should be designed and manufactured
to maintain its strength over a long period of time,
and sufficient consideration should be given to
ensuring that the outdoor unit will not fall.
• When the outdoor unit is to be mounted high on a
wall, take particular care to ensure that parts do
not fall, and that the installer is protected.
• When doing installation work at ground level, it is
usual to make wiring and pipe connections to the
indoor units, first, and then to make connections to
the outdoor unit.
However, if outdoor work is difficult it is possible,
instead, to make changes to the procedure.
For example, by making adjustments to the wiring
and piping lengths on the inside (rather than the
outside).
• A place where the drain water does not cause any
problems.
• The outdoor unit should not be installed with one
indoor unit only. Be sure the (outdoor) unit is
installed with at least two indoor units.
(D)
As shown in the figure, position power cord
and connecting cable downward, and
lead out along piping connection port.
(A)
250 mm or more
from wall
Power cord
Extension drain hose
(Option: RB–821SW)
Outdoor
unitl