Flaring Work - Gree GWC09KF-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
Keep here the piece cut out
from the unit for piping
* The removed pipe port cover can be
kept in the mounting plate pocket.
• For walls containing metal frame or metal board, be sure to use
a wall embedded pipe and wall cover in the feed-through hole to
prevent possible heat, electrical shock, or fire.
• Be sure to caulk the gaps around the pipes with caulking mate-
rial to prevent water leakage.
1) Bore a feed-through hole of 65mm in the wall so it has a down
slope toward the outside.
2) Insert a wall pipe into the hole.
3) Insert a wall cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping,
caulk pipe hole gap with putty.
Inside
Wall embedded pipe
(field supply)
Wall hole cover
(field supply)

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
160 54
Gas pipe end
Through-
331
the-wall
Liquid pipe end
hole φ65mm
770
Drain hose
position
Removed pipe
port cover
Mounting plate
A
Outside
Caulking
Wall embedded pipe
(field supply)
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.
41.3
Putting nut on
Unit: mm
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.
Carry out flaring work using flaring tool as shown below.
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
Bar
Bar
Copper pipe
Clamp handle
Red arrow mark
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
Smooth all round
Inside is shiny without scratches
= Improper flaring =
Inclined Surface
damaged
Even length
all round
Handle
Yoke
Cone
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
1.0~1.3
Cracked Uneven
thickness
29