Storing and Managing Piping Materials | Philips CS-E15DB4EW specs

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Table 11 R410A flaring dimensions

Nominal	Outside	Wall thickness			A (mm)
diameter	diameter	(mm)	R410A flaring		Conventional flaring tool
	(mm)		tool, clutch type
	(mm)		tool, clutch type	Clutch type		Wing-nut type

1/4	6.35	0.8	0 - 0.5	1.0	- 1.5	1.5	- 2.0
3/8	9.52	0.8	0 - 0.5	1.0	- 1.5	1.5	- 2.0

1/2	12.70	0.8	0 - 0.5	1.0	- 1.5	2.0	- 2.5
		Table 12 R22 flaring dimensions
Nominal	Outside	Wall thickness			A (mm)
diameter	diameter	(mm)
diameter	diameter	(mm)	R410A flaring		Conventional flaring tool
	(mm)		tool, clutch type
	(mm)		tool, clutch type	Clutch type		Wing-nut type
1/4	6.35	0.8	0 - 0.5	0.5	- 1.0	1.0	- 1.5

3/8	9.52	0.8	0 - 0.5	0.5	- 1.0	1.0	- 1.5
1/2	12.70	0.8	0 - 0.5	0.5	- 1.0	1.5	- 2.0

Table 13 R410A flare and flare nut dimensions Unit: mm

Nominal	Outside	Wall thickness	A +0, -0.4	B	C	D	Flare nut
diameter	diameter (mm)	(mm)		dimension	dimension	dimension	width

1/4	6.35	0.8	9.1	9.2	6.5	13	17
3/8	9.52	0.8	13.2	13.5	9.7	20	22

1/2	12.70	0.8	16.6	16.0	12.9	23	26

		Table 14 R22 flare and flare nut dimensions Unit: mm
Nominal	Outside	Wall thickness	A +0, -0.4	B	C	D	Flare nut
diameter	diameter (mm)	(mm)		dimension	dimension	dimension	width
1/4	6.35	0.8	9.0	9.2	6.5	13	17

3/8	9.52	0.8	13.0	13.5	9.7	20	22
1/2	12.70	0.8	16.2	16.0	12.9	20	24

2.Procedure and precautions for flare connection

a.Check to make sure there is no scratches, dust, etc., on the flare and union.

b.Align the flared surface with the axial center of the union.

c.Use a torque wrench, and tighten to the specified torque. The tightening torque for R410A is the same as the conventional torque value for R22. Be careful, because if the torque is too weak, it may lead to a gas leak. If it is too strong, it may split the flare nut or make it impossible to remove the flare nut.

Table 15 R410A tightening torque

Nominal	Outside	Tightening torque	Torque wrench tightening torque
diameter	diameter (mm)	N.m (kgf.cm)	N.m (kgf.cm)
1/4	6.35	14 - 18 (140 - 180)	18 (180)

3/8	9.52	33 - 42 (330 -420)	42 (420)
1/2	12.70	55 (550)	55 (550)

10.3.3. Storing and Managing Piping Materials

1.Types of piping and their storage

The following is a general classification of the refrigerant pipe materials used for ACs.

Because the gas pressure of R410A is approximately 1.6 times as high as that of R22, copper pipes with the thickness shown in Table 10, and with minimal impurities must be used. Care must also be taken during storage to ensure that pipes are not crushed, deformed, or scratched, and that no dust, moisture or other substance enters the pipe interior. When storing sheathed copper pipes or plain copper pipes, seal the openings by pinching or taping them securely.

2.Makings and management

a.Sheathed copper pipes and copper-element pipes

When using these pipes, check to make sure that they are the stipulated thickness. For flare nuts, be sure to used the same nut that is used on the AC unit.

CS-E15DB4EW specifications

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