4.Remove PVC tape from ends of pipe when ready to perform flaring work.
5.Clamp flare form on the end of the pipe. The end of the pipe must extend beyond the
flare form.
6.Place flaring tool onto the form.
7.Turn the handle of the flaring tool clockwise until the pipe is fully flared. Flare the pipe in
accordance with the dimensions
8. Remove the flaring tool and flare form,then inspect the end of the pipe for cracks and even
flaring
Pipe
Flare form
Outside
Diameter
7/16"
5/8"
3/4"
7/8"
17/16"
Tightening
Torque
18-20N
m
(183-204kgf.cm)
25-26N
m
(255-265kgf.cm)
35-36N
m
(357-367kgf.cm)
45-47N
m
(459-480kgf.cm)
65-67N
m
(765-867kgf.cm)
Flare dimension(A)
(unit:mm/inch)
8.4/0.33
8.4/0.33
13.2/0.52
13.5/0.53
16.2/0.64
16.5/0.65
19.2/0.76
19.7/0.78
23.2/0.91
23.7/0.93
A
90
4
NOTE:
Connect the copper pipes to the indoor unit first, then connect it to the outdoor unit.
You should first connect the low-pressure pipe, then the high-pressure pipe.
1 When connecting the flare nuts, apply a thin coat of refrigeration oil to the flared ends of
the pipes.
2 Align the center of the two pipes that you will connect.
3 Tighten the flare nut as tightly as possible by hand.
4 Using a spanner, grip the nut on the unit tubing.
5 While firmly gripping the nut, use a torque wrench to tighten the flare nut according to the
torque values.
NOTE:
Use two spanners to
connect the pipe with indoor
/outdoor pipes to avoid the
copper pipe cracking.
1 If the indoor unit is installed higher than the outdoor unit:
CAUTION
Ensure to wrap insulation around the piping. Direct contact with the bare piping may result in
burns or frostbite.
Make sure the pipe is properly connected. Over tightening may damage the bell mouth and
under tightening may lead to leakage .
!!
