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16 Room Air Conditioner
Installation
Flaring Work
Cut the pipes and the cable.
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(59.1in) longer than the
pipe length.
Burrs removal
1. Completely remove all burrs from the cut cross
section of pipe/tube.
2. 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.
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the
following procedure.
mm inch mm inch
Ø6.35 1/4 1.1~1.3 0.043~0.051
Ø9.52 3/8 1.5~1.7 0.059~0.066
Ø12.7 1/2 1.6~1.8 0.063~0.070
Ø15.88 5/8 1.6~1.8 0.063~0.070
Ø19.05 3/4 1.9~2.1 0.074~0.082
Outside diameter A
Copper
pipe
90¡
Slanted Uneven Rough
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Pipe
Reamer
Point down
Firmly hold copper pipe in a die in the
dimension shown in the table above.
Flare nut
Copper tube