14
THE INDOOR UNIT INSTALLATION
ENGLISH
- 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
dimension shown in table below.
2
Carry out flaring work with the flaring tool.
1
Compare the flared work with the figure by.
2
If a flared section is defective, cut it off
and do flaring work again.
1
Align the center of the pipes and
sufficiently tighten the flare nut by hand
2
Tighten the flare nut with a wrench
Putting nut on
Flare nut
Copper tube
Flaring work
Check
Connecting the installation pipe
and drain hose to the indoor unit.
Outside diameter
Torque
mm
inch
kgf
.
m
Ø6.35
1/4
1.8~2.5
Ø9.52
3/8
3.4~4.2
Ø12.7
1/2
5.5~6.5
Ø15.88
5/8
6.3~8.2
Ø19.05
3/4
9.9~12.1
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.
!
Wrench
Indoor unit tubing
Open-end wrench
(fixed)
Connection
pipe
Flare nut
CAUTION
Copper in contact with refrigerants shall
be oxygen-free or de-oxidized, for
example Cu-DHP as specified in EN
12735-1 and EN 12735-2
!
Inclined
Inside is shiny without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Indoor unit tubing
Flare nut
Pipes
<Wing nut type>
<Clutch type>
Bar
Copper pipe
"A"
Pipe diameter
Inch (mm)
A inch (mm)
Wing nut type
Clutch type
Ø1/4 (Ø6.35)
0.04~0.05 (1.1~1.3)
0~0.02
(0~0.5)
Ø3/8 (Ø9.52)
0.06~0.07 (1.5~1.7)
Ø1/2 (Ø12.7)
0.06~0.07 (1.6~1.8)
Ø5/8 (Ø15.88) 0.06~0.07 (1.6~1.8)
Ø3/4 (Ø19.05) 0.07~0.08 (1.9~2.1)
1,MFL70699801,영어 2018. 6. 27. 오후 4:07 페이지 14
