Flaring Work - Frigidaire FRS093LW1 Installation Manual

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
Connection Adjustment
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.
Indoor unit
tubing
OUTER
DIAMETER (inch)
1/4
3/8
1/2
5/8
A (inch)
Min.
Max.
0.028
0.051
0.039
0.063
0.071 0.039
0.087
0.095
Caution: Excessive twisting may
break the nut, depending on the
installation conditions.
Pipings
Flare
nut
TIGHTENING
TORQUE (lbf . in)
139
260
434
651
Refrigerant piping connection
Bar
Handle
Red arrow mark
Clamp
handle
ADDITIONAL TIGHTENING
TORQUE
Copper
pipe
Yoke
(lbf . in)
174
304
477
694
18