Flaring Work - Frigidaire FRS09PYS1 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)
Refrigerant piping connection
17
A (inch)
Max.
0.051
0.063
0.071
0.095
Flare
nut
1/4
3/8
1/2
5/8
Bar
Handle
Min.
0.028
0.039
0.039
Clamp
0.087
handle
Caution: Excessive twisting may
break the nut, depending on the
installation conditions.
Pipings
TIGHTENING
TORQUE (lbf . in)
139
260
434
651
Copper
pipe
Yoke
Red arrow mark
ADDITIONAL TIGHTENING
(lbf . in)
TORQUE
174
304
477
694