GD Midea Refrigerant Equipment Co. Ltd Service manual for Electrolux split Series
8
side.
2. Always use wall hole
conduit when drilling
metal grid, metal plate
or the like.
2.4 FLARING WORK AND CONNECTION OF
PIPING
The main cause for gas leakage is due to defects
in flaring work. Carry out correct flaring work using
the following procedure.
2.4.1 Flaring work
2.4.1.1 Cut the pipes and the cable.
● Use the piping kit accessory (if applicable) or
the pipes purchased locally.
● Measure the distance between the indoor and
the outdoor unit.
● Cut the pipes a little longer than measured
distance.
● Cut the cable 1.5m longer than the pipe
length.
2.4.1.2 Burrs removal
● Completely remove all burrs from the cut cross
section of pipe/tube.
● Place the end of the copper tube/pipe in a
downward direction as you remove burrs in order
to avoid dropping burrs into the tubing.
2.4.1.3 Putting flare nut on
● Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube having
completed burr removal.
(Note: It is not possible to put them on after flaring
work.)
2.4.1.4 Flaring work
● Carry out flaring work using flaring tool as
shown below.
“A” (mm)
Out diameter
Max. Min.
1/4” (6.35mm) 1.3 0.7
3/8” (9.53mm) 1.6 1.0
1/2” (12.7mm) 1.8 1.0
5/8” (16.0mm) 2.4 1.8
Hold copper pipe firmly in a die according to the
dimension shown in the table above.
2.4.1.5 Check
● Compare the flared work with the adjacent
diagram.
● If flare is found to be defective, cut off the
flared section and do flaring work again.
2.4.2 Connection of pipes - Indoor
● Prepare the indoor unit’s piping and drain hose
for installation through the wall.
● Remove the tubing retainer (see illustration
right) and pull the tubing and drain hose away
from chassis (If required). For some models this is
not needed.
Replace the tubing retainer in its original position.
CAUTION
When installing the indoor unit, be sure to remove
the relevant sections where required (see
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