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A
1.8 mm(7/100")
2 mm(9/100")
INSTALLATION METHOD
90
Oblique Roughness Burr
D
A
Outer Diameter
ø 9.52 mm(3/8")
ø 19.05 mm(3/4")
◆ Unproper flaring
Inclined Surface
damaged
Cracked Uneven
thickness
Final Torque
450 kg
•
cm(32 ft•lb)
750 kg
•
cm(54 ft•lb)
RemarksOuter Diameter
ø 9.52mm(3/8")
ø 19.05mm(3/4")
Tightening Torque
400 kg
•
cm(28 ft•lb)
700 kg
•
cm(50 ft•lb)
Spring
❏
Flare Processing
1. Cut the pipe using the pipe cutter.
❏
Pipe Bending
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 difficult.
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 distortion, and secure a minimum bending radius of more than 100mm(4 inch).
❏
Tightening of Connection Parts
◆ 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 processing.
E-26
INSTALLATION METHOD
Connection of Refrigerant Piping
5
1
5
4
5
1
5
3
5
1