SiMT041311E
Installation Manual
Installation / Operation Manual
68
12
Outdoor Unit Installation Guidelines
Wall facing one side
More than 50
More than 100
Walls facing two sides
More than 50
More than 50
More than 50
More than 150
Walls facing three sides
More than 150
More than 50
More than 300
Side view
Top view
Top view
unit: mm
Precautions on Installation of Outdoor Unit
20
Outdoor Unit Installation
1.
Installing outdoor unit
2.
Drain work
Drain hole
Air outlet side
φ
18 hole
(Bottom view)
Bottom frame
H
Drain socket
3.
Flaring the pipe end
Check
Set exactly at the position shown below.
A
Flaring
Die
A
0-0.5mm
Clutch-type
Flare tool for R32 or R410A
1.0-1.5mm
Clutch-type (Rigid-type)
1.5-2.0mm
Wing-nut type (Imperial-type)
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation guidelines below.
• For any of the below installation patterns, the wall height on the outlet side should be 1200mm or less.
Direction
of air
1200
or less
More
than 100
More
than 200
• Check the strength and level of the installation surface so that the unit does not cause any operating
vibration or noise after installation.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
4 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 ends are 20mm from the foundation surface.
1) When installing the outdoor unit, refer to “
Choosing an Installation Site
” on page 5 and the “
Indoor/Outdoor Unit Installation
Drawings
” on page 6.
2) If drain work is necessary, follow the procedures below.
1) Use
H
drain socket for drainage.
2) If the drain port is covered by a mounting base or floor surface, place
additional foot bases of at least 30mm in height under the outdoor
unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface facing
downward so that the chips do not enter
the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Cut exactly at
right angles.
Remove
burrs
Hose (available commercially,
inner dia. 16mm)
Flare’s inner
surface must be
flaw-free.
The pipe end must
be evenly flared in a
perfect circle.
Make sure that the
flare nut is fitted.
Conventional flare tool
WARNING
• Do not use mineral oil on flared part.
• Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
• Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
• Never install a drier to this R32 unit in order to guarantee its lifetime.
• The drying material may dissolve and damage the system.
• Incomplete flaring may cause refrigerant gas leakage.
