3MXL24RMVJUA Installation Manual

4■English
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gure.(Prepare4sets
of 5/16 inch (M8) or 3/8 inch (M10) foundation bolts, nuts and washers; all separately
available.)
• 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 “7. Refrigerant piping work” on page 11 for details.
• It is not possible to have only 1 indoor unit connected. Be sure to connect at least 2 indoor units.
Cut thermal insulation pipe to
an appropriate length and
wrap it with tape, making sure
that no gap is left in the
insulation pipe’s cut line.
Wrap the insulation pipe
with finishing tape from
bottom to top.
9-13/16 (250) from wall
Allow space for piping
and electrical servicing.
Level mounting base
(available separately)
Where there is a danger of the
unit falling, use foot bolts, or
wires.
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.
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 are any of the indoor units connected to it.
Stop valve cover
Service lid
13-5/8 (346)
(Foot bolt-hole
centers)
(Foot bolt-hole centers)
23-5/8 (600)
Allow 11-13/16” (300mm) of work
space below the ceiling surface.
Clamping material
Insulation tube
Stop valve cover
Tape
unit : inch (mm)
Top plate
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01_EN_3P500432-6E.indd 4 10/17/2019 3:02:06 PM