Samsung AQ12NBMDXSV manual Installing and Connecting the Indoor Unit Assembly Piping, Pipe

Page 34

INSTALLING THE INDOOR UNIT

Installing and Connecting the Indoor Unit Assembly Piping

There are two refrigerant pipes of different diameters:

◆ A smaller one for the liquid refrigerant

B

A

◆A larger one for the gas refrigerant

A short length of piping is already fitted to the air conditioner. You must extend this piping using assembly piping (optionally supplied). The connection procedure for the refrigerant piping varies according to the exit position of the piping from the indoor unit, as seen when facing the air conditioner in position on the wall:

◆Right (A)

◆Left (B)

◆Rear

1With a knife, cut out the appropriate knock-out piece on the rear of the indoor unit (unless you are connecting directly from the rear).

2Smooth the cut edges.

3Remove the protection caps on the pipes and connect the assembly piping to each pipe, tightening the nuts, first manually and then with a torque wrench, applying the following torque.

Pipe	Outer Diameter	Torque (kgf•cm)
Liquid refrigerant	6.35 mm	140~170
Gas refrigerant	9.52 mm	250~280
Gas refrigerant	12.70 mm	380~420

➢If the piping must be shortened or extended, refer to page 35.

4Cut off any excess foam insulation.

5If necessary, bend the pipe round, along the bottom of the indoor unit and out through the appropriate hole, taking care to ensure that:

◆The piping does not jut out from the rear of the indoor unit

◆The bending radius is 100 mm or more

6Pass the piping through the hole in the wall.

7For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 39.

➢The piping will be insulated and fixed permanently into position once the whole installation has been tested for gas leaks; refer to page 40 for further details.

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Contents OWNER’S Instructions Safety Precautions Contents View of the Unit Indoor UnitAir InletRear Air Outlet Connection Valve Remote Control Buttons and Display Getting Started Inserting the Remote Control Batteries Selecting with the Remote Control Even though you have lost your remote controlUsing with the indoor unit Way FunctionSelecting the Automatic Operating Mode SET TempCooling Your Room You can select the Heat mode only in the heat pump models Heating Your Room Except the cooling only modelsChanging the Room Temperature Quickly Removing Excess Humidity Airing Your Room Adjusting the Air Flow Direction Vertically RecommendationAdjusting the Air Flow Direction Horizontally To Cancel the On Timer Setting the On TimerMinutes to 24 hours Setting the Off Timer To Cancel the Off TimerSetting the Sleep Timer To Cancel the Sleep TimerOperating Recommendations Topic RecommendationMode Outdoor Temperature Indoor Temperature Indoor Humidity Temperature and Humidity RangesCleaning Your Air Conditioner Have switched off the breaker used for the unitSolving Common Problems Technical Specifications Installing a Filter OptionModel Indoor unit Power Supply Installation Manual Safety Precautions Fixing the Unit in Position Deciding Where to Install the Air Conditioner Indoor UnitMm or more Air Conditioner and Accessories Accessories in the Indoor Unit CaseFixing the Installation Plate Then follow StepsHeat pump models Connecting the Assembly CablePurging the Unit Cooling only modelsInstalling and Connecting the Indoor Unit Drain Hose To install the drain hose, proceed as followsInstalling and Connecting the Indoor Unit Assembly Piping PipeCutting/Extending the Piping Uneven ThicknessConnecting the Cables to the Outdoor Unit One electric cable must be connected to the outdoor unitChecking Correct Earthing Fixing the Unit in Position Use Vacuum Pump as shown at the figure Connecting Up and Purging the CircuitIf you have used Then To check for gas leaks on Then, using a leak detector Check Performing Leak TestsPlacing the Indoor Unit in Position Checking and Testing Operations Explaining Operations to the Owner This AIR Conditioner is Manufactured by