Samsung AS12A5(A6)MC, US12AA(AB)MC Connecting Up and Purging the Circuit, If you have used Then

Page 41

COMPLETING THE INSTALLATION

Connecting Up and Purging the Circuit

The outdoor unit is loaded with sufficient R22 refrigerant for 5m(16ft 5in) of piping. The air in the indoor unit and in the pipe must be purged.

If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling capacity and could lead to a malfunction. Refrigerant for air purging is not charged in the outdoor unit.

Use Vacuum Pump as shown at the figure.

1Connect each assembly pipe to the appropriate valve on the outdoor unit and tighten the flare nut.

2Referring to the illustration opposite, tighten the flare nut first manually and then with a wrench, applying the following torque.

Pipe

Outer Diameter

Torque

Liquid refrigerant

6.35 mm(1/4˝)

160kg•cm(11.6ft•lb )

Gas refrigerant

9.52 mm(3/8˝)

300kg•cm(21.8ft•lb )

Gas refrigerant

12.70 mm(1/2˝)

500kg•cm(36.4ft•lb )

Gas refrigerant

15.88 mm(5/8˝)

700kg•cm(50.6ft•lb )

3Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port as shown at the figure.

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

5Purge the air from the system using vacuum pump for about 10 minutes.

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

-Make sure that pressure gauge show -0.1MPa(-76cmHg) after about

-10minutes.

-This procedure is very important in order to avoid gas leak.

-Turn off the vacuum pump

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

6Set valve cork of both liquid side and gas side of packed valve to the open position.

7Mount the valve stem nuts and the service port cap to the valve, and tighten them at the torque of 18N•m with a torque wrench.

8Check for gas leakage.

-At this time, especially check for gas leakage from the 3-way valve’s stem nuts, and from the service port cap.

Adding Refrigerant

Refrigerant must be added if the piping measures more than 5m(16ft 5in) in length. This operation can only be performed by a qualified refrigeration specialist.

If you have used...

Then...

 

 

 

 

 

 

More than 5m(16ft 5in)

“A” of refrigerant (R22)

 

 

of piping

must be added for each

 

 

 

extra m(3ft.)

 

 

 

 

 

 

Less than 5m(16ft 5in)

The purge time is normal.

 

 

of piping

 

 

 

 

 

 

 

 

 

Outdoor unit

Indoor unit

A

Gas pipe side

C

B

Liquid pipe side

D

Vacuum Pump

The designs and shape are subject to change according to the model.

BA

(liquid)(gas)

Valve stem

Stem cap

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

“A”

 

 

 

 

 

 

✴✴07/09✴✴

20g

 

 

 

 

 

 

✴✴12/18✴✴

30g

 

 

 

 

 

 

✴✴24✴✴

40g

 

 

 

 

 

 

 

 

 

ENGLISH

Refer to the Service Manual for more details on this operation.

E-41

Image 41
Contents Manuel D’UTILISATION & Manuel D’INSTALLATION Safety Precautions Contents Indoor Unit View of the UnitOutdoor Unit Remote Control Buttons and Display Getting Started Installing the Remote Controller Holder Inserting the Remote Control BatteriesSelecting with the Remote Control Using with the indoor unitWay Function To obtain anSelecting the Automatic Operating Mode Cooling Your Room Changing the Room Temperature Quickly Removing Excess Humidity Airing Your Room Adjusting the Air Flow Direction Horizontally Adjusting the Air Flow Direction VerticallyTo Cancel the On Timer Setting the On TimerTo Cancel the Off Timer Setting the Off TimerTo Cancel the Sleep Timer Setting the Sleep TimerTopic Recommendation Operating RecommendationsIf the air conditioner is used at... Then Temperature and Humidity RangesMode Outdoor Temperature Indoor Temperature Indoor Humidity Model AS07A5A6MA/AS09A5A6MA/AS12A5A6MC /AS12AAABMC Cleaning Your Air ConditionerAUTO, Cool Solving Common ProblemsInstalling a Filter Option Model Technical SpecificationsAS24A1A2RC AS18A5A6RCInstallation Manual Purging the Unit Indoor Unit Deciding on Where to Install the Air Conditioner30mm1inch or more Accessories in the Outdoor Unit Case Air Conditioner and AccessoriesAccessories in the Indoor Unit Case Wall Window frame Fixing the Installation PlateThen follow Steps Purging the Unit Connecting the Assembly CableAS18A9A0RCD / AS24A1A2RC To install the drain hose, proceed as follows Installing and Connecting the Indoor Unit Drain HoseTorque Installing and Connecting the Indoor Unit Assembly PipingPipe Depth a Cutting/Extending the Piping07/09 Connecting the Cables to the Outdoor UnitAS12A5A6MC 18/24Electrical Work Auxiliary Circuit Breaker50 19 Checking Correct EarthingModel Fixing the Unit in PositionIf you have used Then Connecting Up and Purging the CircuitPerforming Leak Tests To check for gas leaks on Then, using a leak detector CheckPlacing the Indoor Unit in Position Checking and Testing Operations Explaining Operations to the Owner Electronics