Toshiba RAS-15EKCV-UL Service Manual page 11

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 or conven-
tional flare tool.
Flare processing dimensions differ according
to the type of flare tool. When using a con-
ventional flare tool, be sure to secure "dimen-
sion A" by using a gauge for size adjustment.
Table 3-2-3 Dimensions related to flare processing for R410A
Outer
Nominal
diameter
diameter
(mm)
in.
1/4 6.35
3/8 9.52
1/2 12.70
Table 3-2-4 Dimensions related to flare processingf or R22
Outer
Nominal
diameter
diameter
(mm)
in.
1/4 6.35
3/8 9.52
1/2 12.70
Nominal
Outer diameter
diameter
(mm)
in.
1/4 6.35
3/8 9.52
1/2 12.70
Thickness
Flare tool for R410A
in. (mm)
0.0315 (0.8)
0.0315 (0.8)
0.0315 (0.8)
Thickness
in. (mm)
0.0315 (0.8)
0.0315 (0.8)
0.0315 (0.8)
Table 3-2-5 Flare and flare nut dimensions for R410A
Thic kness
in. (mm)
0.0315 (0.8 ) 0.358 (9.1)
0.0315 (0.8 )
0.520 (13.2)
0.0315 (0.8 ) 0.653 (16.6)
Fig. 3-2-1 Flare processing dimensions
clutch type
0 to 0.0197 (0 to 0.5)
0 to 0.0197 (0 to 0.5)
0 to 0.0197 (0 to 0.5)
Flare tool for R22
clutch type
0 to 0.0197 (0 to 0.5)
0 to 0.0197 (0 to 0.5)
0 to 0.0197 (0 to 0.5)
Dimension in. (mm)
A B
0.362 (9.2) 0.256 (6.5) 0.512 (13)
0.531 (13.5) 0.382 (9.7) 0.787 (20)
0.630 (16.0)
0.508 (12.9)
– 11 –
FILE NO. SVM-13074
ØD
A
A in. (mm)
Conventional flare tool
Clutch type Wing nut type
0.0394 to 0.0591 0.0591 to 0.0787
(1.0 to 1.5) (1.5 to 2.0)
0.0394 to 0.0591 0.0591 to 0.0787
(1.0 to 1.5) (1.5 to 2.0)
0.0394 to 0.0591 0.07874 to 0.0984
(1.0 to 1.5) (2.0 to 2.5)
A in. (mm)
Conventional flare tool
Clutch type Wing nut type
0.0197 to 0.0394 0.0394 to 0.0591
(0.5 to 1.0) (1.0 to 1.5)
0.0197 to 0.0394 0.0394 to 0.0591
(0.5 to 1.0) (1.0 to 1.5)
0.0197 to 0.0394 0.0591 to 0.0787
(0.5 to 1.0) (1.5 to 2.0)
Flare nut width
C D
0.669 (17)
0.866 (22)
1.024 (26)
0.906 (23)
in. (mm)