Beko BKFO 160, Руководство по установке

Страница: 16 / 48

16 / 48 EN
Air conditioner inverter / Installation manual
5.2 Flaring work
Main cause of gas leakage is defect in flaring work. Perform flaring work correctly in the following
procedure.
1. Pipe cutting
• Cut the cooper pipe correctly with pipe cutter.
2. Burrs removal
• Completely remove all burrs from the cut cross section of the pipe.
• Put the end of the copper pipe downward to prevent burrs from dropping in the pipe.
3. Putting nut on
• Remove flare nuts attached to indoor and outdoor units, then put them on pipe having completed
burr removal.
(Not possible to put them on after flaring work).
• Flare nut for R410A pipe may differ from R22 pipe depending on the diameter of pipe.
4. Flaring work
• Perform flaring work using flaring tool as shown below.
Outside diameter
A (mm)
Flare tool for R410A
clutch type
Conventional flare tool
Clutch type Wing nut type
Ø6.35mm 0 to 0.5 1.0 to 1.5 1.5 to 2.0
Ø9.52mm 0 to 0.5 1.0 to 1.5 1.5 to 2.0
Ø12.7mm 0 to 0.5 1.0 to 1.5 2.0 to 2.5
Ø15.88mm 0 to 0.5 1.0 to 1.5 --
Firmly hold copper pipe in a die in the dimension shown in the table above.
5. Check
• Compare the flared work with the figure below.
• If flare is noted to be defective, cut off the flared section and perform flaring work again.
5 Indoor/outdoor units connection finishing and
test run