ENGLISH
17
THE INDOOR UNIT INSTALLATION
Flaring Work
Main cause for gas leakage is due to defect of
flaring work. Carry out correct flaring work in
the following procedure.
1
Use the piping kit accessory or the pipes
purchased locally.
2
Measure the distance between the indoor
and the outdoor unit.
3
Cut the pipes a little longer than measured
distance.
4
Cut the cable 1.5m longer than the pipe
length.
1. Completely remove all burrs from the cut
cross section of pipe/tube.
2. While removing burrs put the end of the
copper tube/pipe in a downward direction
while removing burrs location is also
changed in order to avoid dropping burrs
into the tubing.
- Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal. (not possible
to put them on after finishing flare work)
1
Firmly hold copper pipe in a bar with the di-
mension shown in below table table below.
2
Carry out flaring work with the flaring tool.
Cut the pipes and the cable
Burrs removal
Copper
pipe
90°
Slanted Uneven Rough
Pipe
Reamer
Point down
Putting nut on
Flaring work
Flare nut
Copper tube
CAUTION
Copper in contact with refrigerants shall
be oxygen-free or de-oxidized, for exam-
ple Cu-DHP as specified in EN 12735-1
and EN 12735-2
!
CAUTION
• The installation of pipe-work shall be
kept to a minimum
• Flared joint shall be restricted to use
with annealed pipe only, and to pipe
sizes not exceeding a diameter of 20
mm outside diameter.
!
Pipe diameter
Inch (mm)
A inch (mm)
Wing nut type Clutch type
Ø1/4 (Ø6.35)
0.04~0.07
(1.1~1.8)
0~0.02
(0~0.5)
Ø3/8 (Ø9.52)
Ø1/2 (Ø12.7)
Ø5/8 (Ø15.88)
Bar
Copper pipe
"A"
<Wing nut type>
<Clutch type>
1,MFL67939930,영영 2018. 3. 16. 영영 2:25 Page 17
Summary of Contents for UM30R.N10
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