Flaring Work and Connection of Piping
Flaring Work and Connection of Piping
Flaring
work
Main cause for gas leakage is due to defect in flaring work. Carry out the correct flaring work by using the following procedures.
Cut the pipes
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 1.5 m (5.0 ft) 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 flare nuts on
1.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)
Copper |
| Slanted | Uneven Rough |
pipe | 90° | ||
|
| Pipe |
|
|
| Reamer | |
Point down
Flare nut
Copper tube
Flaring work |
|
|
|
|
|
|
|
1. Carry out flaring work using flaring tool as |
|
|
|
| |||
shown below. |
|
|
|
| "A" | Handle |
|
2. Firmly hold copper pipe in a bar in the | Bar | Bar |
| ||||
|
| ||||||
dimension shown in the table below. |
|
|
| Yoke |
| ||
Outside diameter | A |
|
|
| Cone | ||
|
|
|
|
| |||
mm | inch | mm | inch |
| Copper pipe |
| |
Ø6.35 | 1/4 | 1.1~1.3 | 0.4 - 0.5 |
|
| ||
|
| Clamp handle |
| ||||
Ø9.52 | 3/8 | 1.5~1.7 | 0.6 - 0.7 |
|
|
| |
|
|
|
|
|
| Red arrow mark | |
|
|
|
|
|
| Installation Manual | 11 |