Toshiba RAV-SP454ATZG-E, RAV-SP804ATZG-E Flare and flare nut dimensions for R410A, Diameter

c)Insertion of Flare Nut

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 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.

ØD

A

Fig. 7-2-1 Flare processing dimensions

Table 7-2-3 Dimensions related to flare processing for R410A / R22

					A (mm)
	Outer
Nominal		Thickness		Conventional flare tool		Conventional flare tool
	diameter		Flare tool for
diameter		(mm)		(R410A)		(R22)
	(mm)		R410A, R22
			clutch type	Clutch type	Wing nut type	Clutch type	Wing nut type
1/4	6.4	0.8	0 to 0.5	1.0 to 1.5	1.5 to 2.0	0.5 to 1.0	1.0 to 1.5
3/8	9.5	0.8	0 to 0.5	1.0 to 1.5	1.5 to 2.0	0.5 to 1.0	1.0 to 1.5
1/2	12.7	0.8	0 to 0.5	1.0 to 1.5	2.0 to 2.5	0.5 to 1.0	1.5 to 2.0
5/8	15.9	1.0	0 to 0.5	1.0 to 1.5	2.0 to 2.5	0.5 to 1.0	1.5 to 2.0

	Table 7-2-4	Flare and flare nut dimensions for R410A
Nominal	Outer diameter	Thickness		Dimension (mm)			Flare nut width
diameter	(mm)	(mm)	A	B	C	D	(mm)
1/4	6.4	0.8	9.1	9.2	6.5	13	17
3/8	9.5	0.8	13.2	13.5	9.7	20	22
1/2	12.7	0.8	16.6	16.0	12.9	23	26
5/8	15.9	1.0	19.7	19.0	16.0	25	29

	Table 7-2-5	Flare and flare nut dimensions for R22
Nominal	Outer diameter	Thickness		Dimension (mm)			Flare nut width
diameter	(mm)	(mm)	A	B	C	D	(mm)
1/4	6.4	0.8	9.1	9.2	6.5	13	17
3/8	9.5	0.8	13.0	13.5	9.7	20	22
1/2	12.7	0.8	16.2	16.0	12.9	20	24
5/8	15.9	1.0	19.4	19.0	16.0	23	27
3/4	19.0	1.0	23.3	24.0	19.2	34	36

– 35 –