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4. Flaring work.
Firmly hold copper pipe in a
die in the dimension shown in
the table below.
OUTER
DIAMETER (inch}
1/4
3/8
1/2
5/8
A (inch}
Max. Min.
0.051 0.028
0.063 0.039
0.071 0.039
0.095 0.087
Bar N-_-_x_
Handle ,,,
Q
/
Clamp
handle
Copper
pipe
_r Y°ke
ow mark
Connection Adiustment
1. Align the pipes to be connected. Caution: Excessive twisting may
2. Screw the flare nut with your break the nut, depending on the
fingers, and then tighten it with installation conditions.
a spanner and torque wrench,
as shown in the following figure. _k
Pipings
Indoor unit Flare
tubing nut
OUTER TIGHTENING ADDiTiONAL TiGHTENiNG
DIAMETER (inch} TORQUE (Ibf.in) TORQUE (Ibf.in)
1/4 139 174
3/8 260 304
1/2 434 477
5/8 651 694
::::, ::::<,
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