Samsung ماكس بلس AR18HCFNBWK Cutting or extending the pipe

Cutting or extending the pipe

4. Put a flare nut slightly into the pipe and modify the flare.
	90°±2°	Outer Diameter (D)	Depth (A)	Flaring Size (B)
		ø6.35 mm	1.3 mm	8.7	- 9.1 mm
	B
		ø9.52 mm	1.8 mm	12.8	- 13.2 mm
		ø12.70 mm	2.0 mm	16.2	- 16.6 mm
	R0.4~0.8	ø15.88 mm	2.2 mm	19.3	- 19.7 mm
Pipe	Flare

5. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below).

Correct	Inclined	Damaged	Cracked	Uneven
		Surface		Thickness

6.Align the pipes to connect them easily.Tighten the flare nuts first with your hands, and then with a torque wrench, applying the following torque:

	Flare nut	Outer Diameter		Torque
			N•m	kgf•cm
		ø6.35 mm	14~18	140~180
		ø9.52 mm	34~42	350~430
		ø12.70 mm	49~61	500~620
Indoor outlet pipe	Connecting pipe	ø15.88 mm	68~82	690~830

• Excessive torque can be cause of gas leakage. If extending pipe by welding/brazing please ensure nitrogen is used

during welding/brazing process. The joint must be accessible and serviceable.

7. For further details on how to connect to the outdoor unit and evacuate the air, refer to page 45~46.

• Tighten the flare nut with torque wrench according to specified method.

If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage.

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MG_GOOD_A3050_IB&IM_EN_DB68-04069A-00.indd 42 11/09/2013 21:11:17