Flaring Work
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the follow- ing procedure.
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 out- door unit.
3.Cut the pipes a little longer than measured distance.
4.Cut the cable 1.5m(59.1in) longer than the pipe length.
Copper |
| Slanted Uneven Rough |
pipe | 90° |
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 drop- ping 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.
Outside diameter |
| A | ||
|
|
|
|
|
mm | inch | mm |
| inch |
Ø6.35 | 1/4 | 0~0.5 |
| 0~0.020 |
Ø9.52 | 3/8 | 0~0.5 |
| 0~0.020 |
Ø12.7 | 1/2 | 0~0.5 |
| 0~0.020 |
Ø15.88 | 5/8 | 0~1.0 |
| 0~0.039 |
Pipe
Reamer
Point down
Flare nut
Copper tube
Firmly hold copper pipe in a die in the dimen- sion shown in the table above.
| "A" | Handle | |
Bar | Bar | ||
| |||
|
| Yoke | |
|
| Cone |
Copper pipe
Clamp handle 
Red arrow mark
20Room Air Conditioner