Installation Of Outdoor Unit - Toshiba RAS-M10GKCVP-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 figure.
• 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, C, 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.
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.
80 mm or more only when unobstructed
to the front and both sides
In principle,
leave open
(C)
(B)
Ensure sufficient space
to allow drainage
Fig. 10-5-1 Installation diagram of outdoor units
• Total piping length:
3 units (A + B + C) Multi ............... 40 m
(Without additional refrigerant)
• Minimum piping length:
A or B or C = 2 m or more
• Maximum indoor piping length:
A or B or C = 20 m or less
• Maximum piping height difference:
A or B or C = 10 m or less
• Maximum piping height difference between 2
units = 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 manufac-
tured 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.
50 mm or more
from wall
(D)
250 mm or more
from wall
(A)
As shown in the figure, position power cord
and connecting cable downward, and
lead out along piping connection port.
Power cord
Extension
drain hose
– 56 –
C
Outdoor
unitl