-29-
2. Flaring work and connection of piping
1) Flaring work
Main cause for gas leakage is due to defect in flar-
ing work. Carry out correct flaring work in the fol-
lowing procedure.
1. Cut the pipes and the cable.
■ Use the piping kit accessory or the pipes pur-
chased locally.
■ Measure the distance between the indoor and the
outdoor unit.
■ Cut the pipes a little longer than measured dis-
tance.
■ Cut the cable 1.5m longer than the pipe length.
2. Burrs removal
■ Completely remove all burrs from the cut cross
section of pipe/tube.
■ Put the end of the copper tube/pipe in a down-
ward direction as you remove burrs in order to
avoid dropping burrs into the tubing.
3. Putting nut on
■ Remove flare nuts attached to indoor and outdoor
unit, then put them on pipe/tube having complet-
ed burr removal.
(not possible to put them on after flaring work)
4. Flaring work
■ Carry out flaring work using flaring tool as shown
below.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
5. 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.
To Next Page
Loading...
