Samsung AR30JVFUCWKNMG manual Adding Refrigerant, English-40, Outer Torque

Evacuating the connected pipes

• Excessive torque can be cause of gas leakage.

• Make the electrical connection and leave the system into“stand by mode”. Do not turn on the system!

This is necessary for better vacuum operation (full OPEN position of Electronic Expansion Valve - EEV -).

3.Connect the charging hose of the low-pressure side of manifold gauge to a gas service port as seen in the picture.

Outer	Torque
Diameter	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

Manifold gauge

4.Open the valve of the low pressure side of manifold gauge counterclockwise.

5.Purge the air in the connected pipes using the vacuum pump for about 15 minutes.

Make sure that pressure gauge shows -0.1MPa(-76cmHg) after about 10 minutes.

This procedure is very important to avoid a gas leak.

Close the valve of the low pressure side of manifold gauge clockwise.

Turn off the vacuum pump.

Check for 2 minutes if there is any pressure change.

Remove the hose of the low pressure side of manifold gauge.

6.Set a valve cork of liquid and gas service port to the open position.

Valve

Gas service port <Low pressure>

	Vacuum
Liquid service port	Pump
<High pressure>	(Backward flowing
	prevention)

Adding Refrigerant

Add refrigerant charge according to table below:

If you use a pipe longer than 5 m,

40 g of refrigerant R-410A must be added for each extra meter.

If you use a pipe shorter than 5 m,

The evacuate time is normal.

Refer to the Service Manual for further details.

• The remaining air in the Refrigeration cycle, which contains moisture, may cause malfunction on the compressor.

• Always contact the service center or a professional installation agency for product installation.

English-40

MAX4 AR30JV&JS_IB&IM_DB68-04541A_EN.indd 40

2014/9/26 16:39:02