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4. Flaring work.
die in the dimension shown in
the table below.
OUTER
Connection Adjustment
1. Align the pipes to be connected.
OUTER TIGHTENING
Caution: Excessive twisting may
break the nut, depending on the
installation conditions.
Refrigerant piping connection
Bar
pipe
Handle
Clamp
handle
Yoke
Red arrow mark
Flare
nut
Pipings
Indoor unit
tubing
Copper
A (inch)
Max.
Min.
DIAMETER (inch)
0.051
0.063
0.071
0.095
0.028
0.039
0.039
0.087
2. Screw the flare nut with your
fingers, and then tighten it with
a spanner and torque wrench,
as shown in the following figure.
ADDITIONAL TIGHTENING
DIAMETER (inch)
Firmly hold copper pipe in a
1/4
3/8
1/2
5/8
1/4
3/8
1/2
5/8
TORQUETORQUE (lbf
.
in)
139 174
260 304
434 477
651 694
(lbf
.
in)
18