Toshiba RAS-M07G3DV-E Service Manual page 20

d) Flare Processing
Make certain that a clamp bar and
copper pipe have been cleaned.
By means of the clamp bar, perform the
flare processing correctly.
Use either a flare tool for R410A/R32 or
conventional flare tool.
Flare processing dimensions differ
according to the type of flare tool. When
using a conventional flare tool, be sure
to secure "dimension A" by using a
gauge for size adjustment.
Table 3-2-3 Dimensions related to flare processing for R410A or R32
Outer
Nominal
diameter
diameter
(mm)
1/4 6.35
3/8 9.52
1/2 12.70
5/8 15.88
3/4 19.05
Outer
Nominal
diameter
diameter
(mm)
1/4 6.35
3/8 9.52
1/2 12.70
5/8 15.88
3/4 19.05
Table 3-2-5 Flare and flare nut dimensions for R410A or R32
Nominal
diameter
1/4
3/8
1/2
5/8
3/4
Thickness
(mm)
0.8
0.8
0.8
1.0
1.2
Table 3-2-4 Dimensions related to flare processing for R22
Thickness
Flare tool for R22
(mm)
0.8
0.8
0.8
1.0
1.2
Outer diameter
(mm)
6.35
9.52
12.70
15.88
19.05
Fig. 3-2-1 Flare processing dimensions
Flare tool clutch
type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
clutch type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
Dimension (mm)
Thickness
(mm)
A
0.8 9.1
0.8 13.2 13.5 9.7
0.8 16.0 16.6 12.9
1.0 19.0 19.7 16.0
1.2 24.0
– 19 –
ØD
A
A (mm)
Conventional flare tool
Clutch type Wing nut type
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
A (mm)
Conventional flare tool
Clutch type Wing nut type
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
-
Flare nut width
B C D
9.2 6.5 13
20
23
25
- 19.2 28
1.5 to 2.0
1.5 to 2.0
2.0 to 2.5
2.0 to 2.5
2.0 to 2.5
1.0 to 1.5
1.0 to 1.5
1.5 to 2.0
1.5 to 2.0
-
(mm)
17
22
26
29
36