Samsung AR24KQFHCWKNMG, AR24KRFHCWKNMG, AR18KRFHCWKNMG Performing the gas leak tests, English-47

Page 47

Performing the gas leak tests

Make sure to check for gas leaks before completing the installation process (connecting the assembly pipe and hose between indoor unit and outdoor unit, insulating the cables, hose and pipe, and fixing the indoor unit to the installation plate).

A C D

B

07stIn llan atio

Test part for outdoor unit

Tightening torque for body cap (Refer to the table)

Spindle

Charging

core

R-22: Diameter of the screw - 7/16-20UNF

R-410A: Diameter of the screw - 1/2-20UNF

Tightening torque for charging port cap (Refer to the table)

To check for gas leaks on the outdoor unit,

Check the valve A and B using a leak detector.

Test part for indoor unit

Before inspecting the leakage, use a torque wrench to close the cap for the service valve. (Comply with a tightening torque for each size of the diameter,and tighten the cap firmly to prevent any leakage.).

To check for any possible leakage, insert inert gas into the pipes connected to indoor/outdoor units and check the connection part of the indoor/outdoor units with soap lather or liquid for leakage test.

Outer

Tightening torque

Diameter

Body cap (N•m)

Charging port cap

(mm)

(N•m)

 

ø 6.35

20 ~ 25

 

ø 9.52

20 ~ 25

 

ø12.70

25 ~ 30

10 ~ 12

ø15.88

30 ~ 35

 

ø19.05

35 ~ 40

 

( 1 N•m = 10 kgf•cm )

To check for gas leaks on the indoor unit,

Check the flare nut C and D using a leak detector.

Leak test with nitrogen (before opening valves)

In order to detect basic refrigerant leaks, before recreating the vacuum and recirculating the R-410A.

Leak test (after opening valves)

Before opening valves, discharge all the nitrogen from the system and create vacuum according to page 44~46. After opening valves, check leaks using a leak detector for refrigerant.

Pump down (before disconnecting the refrigerant connections for unit repair, removal or disposal) Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit.

This operation must be carried out before disconnecting the refrigerant tubing in order to avoid refrigerant loss to the atmosphere.

Shut off the liquid valve with the Allen wrench.

Turn the system on in cooling with fan operating at high velocity.

(Compressor will immediately start, provided 3 minutes have elapsed since the last stop).

After 2 minutes of operation, shut the suction valve with the same wrench.

Turn the system off and switch mains supply off.

Disconnect tubing. After disconnection, protect valves and tubing ends from dust.

Compressor damage may occur if run at a negative suction pressure.

English-47

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Contents Air Conditioner Features of your new air conditioner Contents English-4 Safety precautions01epPr aration English-5English-6 For UsingEnglish-7 English-8 Do not place objects or devices under the indoor unitEnglish-9 For CleaningEnglish-10 Smart installChecking before use Operation rangesN02asicbctiofun Technical SpecificationsEnglish-11 Display Power buttonChecking the name of the parts Main partsEnglish-13 Checking the remote controllerRemote controller buttons Inserting the batteries Remote controller displayLow Battery warning Storing the remote controllerBasic function English-16 Press the button to adjust the temperaturePress the button to set the desired fan speed English-17 Adjusting the air flow directionVertical air flow Horizontal air flowYou can adjust the fan speed in Cool/Fan/Heat mode Setting the On/Off timerSetting the On timer Set the timer to press the SET buttonButton  Setting the Off timerSet the timer to English-19English-20 Additional options available in modeMode Press the SET button to set the 2-Step Cooling function Step cooling functionEnglish-21 Press the Options buttonEnglish-22 Using the Fast functionUsing the Comfort function Set temperature and fan speed cannot be adjustedPress the Single user button Using the Single User functionEnglish-23 English-24 Using the Auto Clean functionSetting the Beep sound English-25 Cleaning the air conditionerCleaning the outdoor unit heat exchanger Opening the panelOpen the panel and put the Air filter out Cleaning the air filterRemoving the Air filter English-26English-27 Maintaining the air conditionerEnglish-28 TroubleshootingAir conditioner Heard when refrigerant flow movement changes. It is normal Button or disconnect the power plug/switchCheck the Drains have been cleared Regular Maintenance Error is indicatedEnglish-30 General informationIndoor unit Choosing the installation locationInstalling the unit Power supply line, fuse or circuit breakerNoise and vibration Where sulfide gas existsOutdoor Unit English-32Top view Side view When installing more than 1 outdoor unitEnglish-33 English-34 AccessoriesAccessories in the indoor unit case Accessories in the outdoor unit caseTools for test operations Fixing the installation plateOptional accessories Tools required for installation General ToolsIf you fix the indoor unit on a gypsum board English-36On a Wall On aEnglish-37 Connecting the assembly cableCable specification Connecting the cable18/24KR  Extend the assembly cable if necessaryEach wire is labeled with the corresponding terminal number English-38Torque English-39Smooth the cut edges Cut off the remaining foam insulationEnglish-40 Evacuating the indoor unitCutting or extending the pipe English-41 Two hoses are firmly connected, there is no water leakage Drain hose installationEnglish-42 Correct connection Incorrect connection Drain hose PipeCheck for leakage on both side of the drain outlet Change the direction only when it is necessaryChanging direction of the drain hose English-43Drain hole Drain plug Evacuating the connected pipesEnglish-44 Connect a drain hose to the drain plugIf you use a pipe longer than 5 m Adding RefrigerantEnglish-45 Outer TorqueCylinder with siphon English-46English-47 Performing the gas leak testsEnglish-48 Outdoor unit installed on the wall by rackFixing the outdoor unit in place English-49 Smart Install modeOff / Blinking / On English-50English-51 Final check and trial operationEnglish-52 Packing and unpacking guideAtio After tube contraction work is completed, wrap it with How to connect your extended power cablesEnglish-53 Apply heat to the contraction tube to contract itEnglish-54 English-55 021-8255 CE Questions or COMMENTS?

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