Manual

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