English
13
English
Indoor Unit Installation
6.
Wireless adapter (option)
Refrigerant Piping Work
1.
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 flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
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 dryer to this R32 unit in order to guarantee its lifetime.
• The drying material may dissolve and damage the system.
• Protect or enclose the refrigerant tubing to avoid mechanical damage.
• Incomplete flaring may cause refrigerant gas leakage.
Installing:
• Place the wireless adapter against the hooks (1).
• Lock the adapter by pressing it down (2).
Removing: the reverse process of installing.
(1)
(2)
A
A
(Cut exactly at
right angles.)
Remove burrs.
Set exactly at the position shown below.
Flaring
Die
Check
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.
0-0.5mm
Clutch-type
Flare tool for R32
1.0-1.5mm
Clutch-type (Ridgid-type)
1.5-2.0mm
Wing-nut type (Imperial-type)
Conventional flare tool
3PEN482320-6B.book Page 13 Wednesday, July 12, 2017 2:30 PM