Flaring Work - Gree GWC12KF-K3DNA5A Service Manual

Installation Manual
Recommended mounting plate retention spots and
dimensions
Recommended mounting plate
Place a leveler
retention spots (5 spots in all) on raised tab.
120.5
203
41.3
54.5 160 50
330.5
770
Keep here the piece cut out
from the unit for piping
* The removed pipe port cover can be
kept in the mounting plate pocket.
1.Make the piping hole (
slant to the outdoor side.
2.Insert the piping-hole sleeve into the hole to prevent the con-
nection piping and wiring from being damaged when passing
through the hole.
Indoor
Wall pipe

3.1 Flaring work

Flaring work
Main cause for refrigerant leakage is due to defect in theflaring
work. Carry out correct flaring work using the follow-ing procedure.
Cut the pipes and the cable
1. Use the piping kit accessory or pipes purchased locally.
2. Measure the distance between the indoor and the outdoor unit.
3. Cut the pipes a little longer than the measured distance.
4. Cut the cable 1.5m longer than the pipe length.
Copper
pipe
90
Use tape measure
as shown.
Position the end of
a tape measure at .
101
247
41.3
160 54
Gas pipe end
Through-
331
the-wall
Liquid pipe end
hole Φ 65mm
Drain hose
position
Removed pipe
port cover
Mounting plate
A
55) in the wall at a slight downward
Outdoor
Seal pad
Ø 65
Slanted Uneven Rough
Burr 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 direc-
tion as you remove burrs in order to avoid dropping burrs
into the tubing.
Unit: mm
Putting nut on
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)
Flaring work
Firmly hold copper pipe in a die in the dimension shown in
the table above.
Bar
Carry out flaring work using flaring tool as shown below.
mm
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
Check
1.Compare the flared work with figure below.
2.If flare is noted to be defective, cut off the flared section and re-
flare it.
Pipe
Reamer
Point down
Flare nut
Copper tube
Handle
Bar
Copper pipe
Clamp handle
Red arrow mark
Outside diameter
inch
1/4
3/8
1/2
5/8
3/4
Smooth all round
Inside is shiny without scratches
= Improper flaring =
Inclined Surface
damaged
Even length
all round
Yoke
Cone
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
1.0~1.3
Cracked Uneven
thickness
33