–19–
6. Connecting Pipes to the Indoor Unit
• Preparation of Piping
Main cause of gas leakage is defect in flaring
work. Carry out correct flaring work in the following
procedure.
1) 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 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 to downward
direction as you remove burrs in order to avoid to
let burrs drop in the tubing.
3) Putting nut on
■ Remove flare nuts attached to indoor and out-
door units, than put them on pipe/tube having
completed 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 tube in a bar(or die) as indicat-
ed dimension in the table above.
5) Check
■ Compare the flared work with figure.
■ If flare is noted to be defective, cut off the flared
section and do flaring work again.
To Next Page
Loading...