Samsung AR18KPFNDWKNSG, AR24KPFNDWKNSG, AR12KPFNDWKNSG Performing the gas leak tests, English-49

Page 49

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-22.

Leak test (after opening valves)

Before opening valves, discharge all the nitrogen from the system and create vacuum according to page 47~48. 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-49

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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 CleaningOperation ranges Checking before useEnglish-10 Main parts Checking the name of the partsFor model ARKPFN DisplayRemote controller buttons Checking the remote controllerEnglish-12 Low Battery warning Remote controller displayStoring the remote controller Inserting the batteriesBasic function Press the button to set the desired fan speed Press the button to adjust the temperatureEnglish-15 Vertical air flow Adjusting the air flow directionHorizontal air flow English-16Setting the On timer Setting the On/Off timerSet the timer to press the SET button You can adjust the fan speed in Cool/Fan/Heat modeSet the timer to Setting the Off timerEnglish-18 Button Mode Additional options available in modeEnglish-19 English-20 Step cooling functionUsing the Comfort function Using the Fast functionEnglish-21 English-22 Using the Single User functionPress the Single user button Setting the Beep sound Using the Auto Clean functionEnglish-23 Cleaning the indoor unit Cleaning the air conditionerCleaning the outdoor unit heat exchanger English-24Removing the Air filter Cleaning the air filterEnglish-25 Remove the air filter from the main bodyRemoving the Air filter English-26English-27 Reassembling the Air filterAir filter English-28 Maintaining the air conditionerAir conditioner TroubleshootingEnglish-29 Check the Drains have been cleared Regular Maintenance Button or disconnect the power plug/switchError is indicated Heard when refrigerant flow movement changes. It is normalEnglish-31 General information07stIn llan atio Installing the unit Choosing the installation locationPower supply line, fuse or circuit breaker Indoor unitOutdoor Unit Where sulfide gas existsEnglish-33 Noise and vibrationWhen the air outlet is towards the wall When installing more than 1 outdoor unitEnglish-34  Figure DescriptionAccessories in the indoor unit case AccessoriesAccessories in the outdoor unit case English-35Optional accessories Fixing the installation plateTools required for installation General Tools Tools for test operationsEnglish-37 Assembling the hanger screwOn a Wall On aRemoving the screws This QR code for detail video of indoor unit installationRemoving the Cover panel Before mounting the indoor unit English-38English-39 Assembling the Cover panel After mounting the indoor unitCable specification Connecting the assembly cableConnecting the cable English-40Each wire is labeled with the corresponding terminal number Extend the assembly cable if necessaryEnglish-41 Smooth the cut edges English-42Cut off the remaining foam insulation TorqueCutting or extending the pipe Evacuating the indoor unitEnglish-43 Correct Inclined English-44Cracked English-45 Drain hose installationChanging direction of the drain hose Change the direction only when it is necessaryEnglish-46 Check for leakage on both side of the drain outletEnglish-47 Evacuating the connected pipesConnect a drain hose to the drain plug Drain hole Drain plugEnglish-48 Adding RefrigerantEnglish-49 Performing the gas leak testsFixing the outdoor unit in place Outdoor unit installed on the wall by rackEnglish-50 English-51 Smart Install modeOff / Blinking / On English-52English-53 Final check and trial operationEnglish-54 How to connect your extended power cablesApply heat to the contraction tube to contract it After tube contraction work is completed, wrap it withEnglish-55 021-8255 CE Questions or COMMENTS?
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