Installing The Indoor Unit; Cutting/Extending The Piping - Samsung MH080FX*A4 series Instruction Manual

INSTALLING THE INDOOR UNIT

Cutting/Extending the Piping

D
10
E-
1
Make sure that you have the required tools available (pipe cutter, reamer,
flaring tool and pipe holder).
2
If you wish to shorten the piping, cut it using a pipe cutter, taking care to
ensure that the cut edge remains at a 90° angle with the side of the pipe,
and referring to the illustrations below for examples of edges cut correctly
and incorrectly.
�� �
O
3
To prevent any gas from leaking out, remove all burrs at the cut end of the
pipe, using a reamer.
4
Slide a flare nut on to the pipe and modify the flare.
A
5
Check that the flaring is correct, referring to the illustrations below for examples of incorrect
flaring.
Inclined
6
Align the pipes to be connected and tighten the flare nuts first manually and
then with a torque wrench, applying the following torque.
7
For further details on how to connect up to the outdoor unit and purge the circuit, refer to
page 23.
In case welding the pipe, the gas nitrogen must be blown into the parts.
Oblique
x
Outer Diameter (D)
1/4 inch
3/8 inch
1/2 inch
� �
Damaged Surface
Outer Diameter
1/4 inch
3/8 inch
1/2 inch
Rough
x
Depth(A)
0.05 inch
0.07 inch
0.08 inch
� �
Cracked Uneven Thickness
Torque
10.1~12.3 ft.lb
18.1~20.3 ft.lb
27.5~30.4 ft.lb
Burr
x