Outdoor Unit Installation; Installing The Outdoor Unit; Drain Work; Flaring The Pipe End - Daikin 2MXS18WMVJU9 Installation Manual

Outdoor Unit Installation

1.

Installing the outdoor unit

1) When installing the outdoor unit, refer to "Precautions for Selecting a Location" on page 3 and the "Outdoor Unit
Installation Diagram" on page 4.
2) If drain work is necessary, follow the procedures below.
2.

Drain work

CAUTION
In cold areas, do not use a drain socket, drain caps (1,2)
and a drain hose with the outdoor unit. (Drain water may
freeze, impairing heating performance.)
• If the drain port is covered by a mounting base or floor
surface, place additional foot bases of at least 1-1/4
inch (30mm) in height under the outdoor unit's feet.
1) Attach C drain cap (1) and
2) Attach B drain socket.
• When attaching
frame, make sure to connect the drain hose to the
drain socket first.
3.

Flaring the pipe end

WARNING
• Do not apply mineral oil to the flare.
• 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 this 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.
• Improper flaring may result in refrigerant gas leakage.
CAUTION
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 filings do not enter the
pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring has been done correctly.
■
English
D drain cap (2).
B drain socket to the bottom
Drain cap (2)
D
B Drain
socket
Bottom frame
Drain cap
Pinch the bottom
frame in.
Cut exactly at
Remove burrs.
right angles.
Set exactly at the position shown below.
Flare tool for R410A
A
Clutch-type
0-0.020 inch
Die A
(0-0.5mm)
Drain cap (1)
C
Drain cap (2)
D
Air outlet side
Bottom frame
Drain socket
B
Hose (available commercially,
inner dia. 5/8 " (16mm))
Check
The flare's inner The pipe end must be
surface must be evenly flared in a
flaw-free. perfect circle.
When flaring, do
Make sure that
not over-tighten
the flare nut is fitted.
and crack.
Flaring
Conventional flare tool
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0.039-0.059 inch 0.059-0.079 inch
(1.0-1.5mm) (1.5-2.0mm)
8