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Precautions on Installation
•
Check the strength and level of the installation surface so that the unit does not cause
any operating vibrations or noise after installation.
• Fix the unit in place securely using foundation bolts, as in the figure. (Prepare 4 sets
of 5/16 inch (M8) or 3/8 inch (M10) foundation bolts, nuts and washers; all sold
separately.)
•
It is best to screw in the foundation bolts until their ends are 3/4 inch (20mm) from the
foundation surface.
3/4” (20mm)
Outdoor Unit Installation Diagram
CAUTION
•
Do not connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the
indoor unit in order to add another indoor unit later.
Make sure no dirt or moisture gets into either side of the embedded branch piping.
Refer to
“4. Refrigerant piping”
on page 9 for details.
•
It is not possible to have only 1 indoor unit connected.
Be sure to connect at least 2 indoor units.
Stop valve cover
Service lid
Refrigerant piping must be
protected from physical damage.
Install a plastic cover or equivalent.
Wrap the insulation pipe with
finishing tape from bottom to top.
9-13/16 (250) from w
all
Allow space for piping
and electrical servicing.
Level mounting
base (available
separately)
If there is a danger of the unit falling or
overturning, fix the unit with foundation
bolts, or with wire or other means.
If strong wind blows into the air discharge
side from the front and there is a danger
that the fan may be damaged, change the
orientation of the air discharge side of the
outdoor unit or use an air direction
adjustment grille (sold separately).
In sites with poor drainage, use block
bases for the outdoor unit.
Adjust foot height until the unit is level.
Otherwise, water leakage or pooling of
water may occur.
Appearance of outdoor units may differ from some models.
13-5/8 (346)
(Foot bolt-hole
centers)
(Foot bolt-hole centers)
23-5/8 (600)
4-15/16 (125)
(From unit’
s side)
Allow 11-13/16” (300mm) of work
space below the ceiling surface.
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 at a higher elevation than
any of the indoor units connected to it.
Clamping material
Insulation tube
Stop valve cover
Tape
unit : inch (mm)
Top plate
English
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