Samsung AP500PF, Service Manual, Page: 13 / 45

Installation Method
3-9
Samsung Electronics
3-2-3(b) Connection of Refrigerant Piping
Oblique Roughness Burr
Outer Diameter
ø 9.52mm
ø 19.05 mm
• Unproper flaring
Inclined Surface
damaged
Cracked Uneven
thickness
A ( out / in)
1.7 / 1.0 (mm)
2.2 / 1.5 (mm)
Final Torque
450 kg • cm
750kg • cm
Remarks Outer Diameter
ø 9.52mm
ø 19.05mm
Tightening Torque
400 kg • cm
700kg • cm
Spring
1. Cut the pipe using the pipe cutter.
1. Perform bending of the pipe using the bender which has a specified bending radius.
2. Be sure to take full care to perform bending of the pipe successfully at one time.
Bending and unbending the pipe more than twice makes the bending work increasingly diff i c u l t .
3. You may use the spring inserted into the gas pipe instead of the bender to bend the pipe.
4. When you bend the pipe using the spring, hold the pipe with both hands to prevent any distor-
tion, and secure a minimum bending radius of more than 100mm.
• Align the center of the connection piping, and tighten the flare nut
by turning it with hand. Then tighten it again using the spanner in
the direction as shown in the figure .
2. Insert the flare nut into the pipe, and then perform the flare pro c e s s i n g .
Flare Processing
Pipe Bending
Tightening of Connection Parts