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Outdoor Unit Installation Drawings
Precautions on Installation
• Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare four sets of M8 or M10
foundation bolts, nuts and washers each which are available on the market.)
• It is best to screw in the foundation bolts until their length are 20mm from the foundation surface.
Max. allowable height
Min. allowable length
Max. allowable length
30m
1.5m
20m
Liquid pipe
Gas pipe
O.D. 6.4mm
O.D. 15.9mm
20g/m
Additional refrigerant
required for refrigerant
pipe exceeding 10m
in length.
*
Be sure to add the proper amount of additional refrigerant.
Failure to do so may result in reduced performance.
The suggested shortest pipe length is 1.5 m, in order to avoid
noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how
the unit is installed and the environment in which it is used.)
25cm from w
all
Right side plate
35cm
(F
oot bolt-hole
centres)
(Foot bolt-hole centres)
62cm
**
**
*
CAUTION
** Set the piping length
from 1.5m to 30m.
Wrap the insulation
pipe with the finishing
tape from bottom to top.
Allow space for piping
and electrical servicing.
Allow 30cm of work
space below the
ceiling surface.
If there is the danger of the unit falling
or overturning, fix the unit with
foundation bolts, or with wire or other
means.
If the location does not have good
drainage, place the unit on a level
mounting base (or a plastic pedestal).
Install the outdoor unit in a level
position. Failure to do so may result in
water leakage or accumulation.
Level mounting base
(available separately)
Clamping material
Insulation tube
Service lid
Tape
Also insulate the connection on the outdoor unit.
Use tape or insulating material on all connections
to prevent air from getting in between the copper
piping and the insulation tube.
Be sure to do this if the outdoor unit is installed
above.
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