CONNECTING PIPES
13
ENGLISH
Cut the pipes and the cable
- Use the piping kit accessory or the pipes
purchased locally.
- Measure the distance between the indoor
and the outdoor unit.
- Cut the pipes a little longer than measured
distance.
- Cut the cable 1.5 m longer than the pipe
length.
Burrs removal
- Completely remove all burrs from the cut
cross section of pipe / tube.
- Put the end of the copper tube / pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Putting nut on
- 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 flaring
work)
Flaring work
- Carry out flaring work using flaring tool as
shown below.
Firmly hold copper pipe in a bar in the
dimension shown in the table below.
Check
- Compare the flared work with figure below.
- If flare is noted to be defective, cut off the
flared section and do flaring work again.
Copper
tube
90°
Slanted Uneven Rough
Pipe
Reamer
Point down
Flare nut
Copper tube
Bar
Copper pipe
"A"
<Wing nut type>
<Clutch type>
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Pipe diameter
Inch (mm)
A Inch (mm)
Wing nut type
Clutch type
Ø 1/4 (Ø 6.35)
0.04~0.05 (1.1~1.3)
0~0.02 (0~0.5)
Ø 3/8 (Ø 9.52)
0.06~0.07 (1.5~1.7)
Ø 1/2 (Ø 12.7)
0.06~0.07 (1.6~1.8)
Ø 5/8 (Ø 15.88)
0.06~0.07 (1.6~1.8)
Ø 3/4 (Ø 19.05)
0.07~0.08 (1.9~2.1)
CONNECTING PIPES
Preparation of Piping
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following
procedure.
Содержание ABUQ60LM3T1
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