Table Of Contents
Outdoor Unit Installation
1. Installing the outdoor unit
• When installing the outdoor unit, refer to “Precautions for Selecting a Location” on page 3 and the “Outdoor Unit
Installation Diagram” on page 4.
• If drain work is necessary, follow the procedures below.
2. Drain work
• In cold areas, do not use a drain socket, drain plugs and a drain hose with the outdoor
unit. (Drain water may freeze, impairing heating performance.)
bases of at least 3-15/16 inch (100mm) in height under the outdoor unit’s feet.
1) Insert the
around the entire circumference, as shown in area A.
Drain plug insert direction
Be careful not to push in
the drain plug too far.
drain socket cap onto
drain socket beyond the projection around
drain socket into the matching drain hole.
After insertion, turn it about 40° clockwise.
drain socket cap is correctly engaged with the projection of
Otherwise, water leakage may result.
5) Make sure the
drain plugs and the
drain socket of the outdoor unit are securely
inserted and there is no leakage.
Air outlet side
Drain socket cap
3. Flaring the pipe end
• Prevent mineral oil from getting into the system as this would reduce the service life 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 dryer to this R410A unit in order to guarantee its service life.
• The drying material may dissolve and damage the system.
Do not reuse joints which have been used once already.
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
4) Flare the pipe.
surface must be
The pipe end must
be evenly ﬂared in
a perfect circle.
Make sure that the
ﬂare nut is ﬁtted.
Set exactly at the position shown below.
Flare tool for R410A
Wing-nut type (Imperial-type)
Conventional ﬂare tool
Cut exactly at
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