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Outdoor Unit Installation Guidelines
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airfl ow, follow the installation guidelines below.
•
For any of the below installation patterns, the wall height on the outlet side should be 1200mm or less.
Wall facing one side
More than 50
More than 100
Direction
of air
1200
or less
Walls facing two sides
More than 50
More
than 100
More
than 200
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
•
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, fi x 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.
20
Outdoor Unit Installation
1.
Installing outdoor unit
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.
2.
Drain work
1)
Use
H
drain socket for drainage.
2)
If the drain port is covered by a mounting base or fl oor 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.)
Drain hole
Air outlet side
ɸ
18 hole
(Bottom view)
Bottom frame
H
Drain socket
Hose (available commercially,
inner dia. 16mm)
3.
Flaring the pipe end
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 fl are nut on the pipe.
4) Flare the pipe.
5)
Check that the fl aring is properly made.
Remove
burrs
Cut exactly at
right angles.
The pipe end must
be evenly fl ared in a
perfect circle.
Flare’s inner
surface must be
fl aw-free.
Make sure that the
fl are nut is fi tted.
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)
Conventional flare tool
WARNING
• Do not use mineral oil on fl ared 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 fl aring may cause refrigerant gas leakage.
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