Samsung AR12JSFPEWQNZE English-38, Put a flare nut slightly into the pipe and modify the flare

Cutting or extending the pipe

4. Put a flare nut slightly into the pipe and modify the flare.

90°±2°

	4
	5°±
B		2°

R0.4~0.8

Pipe Flare

Outer Diameter (D)	Depth (A)	Flaring Size (B)
ø6.35 mm	1.3 mm	8.7	- 9.1 mm
ø9.52 mm	1.8 mm	12.8	- 13.2 mm
ø12.70 mm	2.0 mm	16.2	- 16.6 mm
ø15.88 mm	2.2 mm	19.3	- 19.7 mm

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

Indoor outlet	pipe
		Connecting pipe

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
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 41~43.

• 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.

English-38

Maldives ET IB&IM_DB68-06219A-00_EN.indd 38

2016/5/16 10:26:49