Klimatair KFH28PV2, Service Manual

Page: 16 / 55

Operating Instructions and Installation
3-12
3-2-3(d) Connection of refrigerant pipe
1 . Cut the pipe using the pipe cutter.
2. Insert the flare nut into the pipe, and then perform the flare pro c e s s i n g .
• 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 .
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
m o re than twice makes the bending work incre a s i n g l y
d i ff 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 distortion, and secure a
minimum bending radius of more than 100mm.
Flare Processing
Pipe Bending
Tightening of Connection Parts
Spring
Oblique Roughness Burr
Outer Diameter
ø 6.35 mm
ø 9.52 mm
ø 15.8 mm
A
1.3
1.8
2.0
Final Torque
200kg • cm
450 kg • cm
750 kg • cm
Remarks Outer Diameter
ø 6.35mm
ø 9.52mm
ø 15.8mm
Tightening Torque
160 kg • cm
400 kg • cm
700 kg • cm