INSTALLATION
19
ENGLISH
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following
procedure.
Cut the pipes and the cable
- Use the accessory piping kit or the pipes pur-
chased locally.
- Measure the distance between the indoor
and the outdoor unit.
- Cut the pipes a little longer than measured
distance.
- Cut the cable 1.5m(4.92ft) 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 to down-
ward direction as you remove burrs in order
to avoid to let burrs drop in the tubing.
Flaring work
- Carry out flaring work using flaring tool as
shown below.
Firmly hold copper tube in a bar(or die) as in-
dicated dimension in the table above.
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.
Indoor unit
[kW(Btu/h)]
Pipe [mm(inch)] "A" [mm(inch)]
Gas Liquid Gas Liquid
<5.6(19,100) 12.7(1/2) 6.35(1/4)
0.5~0.8
(0.02~0.03)
0~0.5
(0~0.02)
<16.0(54,600) 15.88(5/8) 9.52(3/8)
0.8~1.0
(0.03~0.04)
0.5~0.8
(0.02~0.03)
<22.4(76,400) 19.05(3/4) 9.52(3/8)
1.0~1.3
(0.04~0.05)
0.5~0.8
(0.02~0.03)
Preparation of Piping
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