Precautions
1-2 Samsung Electronics
1-3 Precautions related to product safety
• Do not pull the power cord and do not touch the power plug or aux power switch with wet hands.
– It might cause electric shock or fire.
• A damaged power line or power plug must be replaced to prevent danger.
• Do not bend the power cable with excessive force, and do not place a heavy weight on the case as it might
damage the cable.
– It might cause electric shock or fire.
• Do not use multiple electric outlets.
– This might cause electric shock or fire.
• Connect the ground terminal when necessary.
– You must connect the ground terminal if you determine that there is a danger of electric leakage due to
moisture or water.
• Unplug the power cable or turn off the auxiliary power switch for electric part replacement and repair service.
– Otherwise it might cause electric shock.
• Instruct end users to separate the batteries from the remote controllers and store them separately when the
product is not used for long time.
– Otherwise leakage from the dry cell may cause problems with the remote controller.
1-4 Other precautions
• The pipes should have no leaks during installation, and the compressor must be stopped before removing
connecting pipes for pump down work. Operating the compressor while the service valve is open and
refrigerant pipe is not properly connected may cause explosion or injury due to abnormal high pressure
created inside the refrigerant cycle as the air can be absorbed through the pipe.
• Pump Down work procedure (When uninstalling the product)
– Turn on the air conditioner, select cooling operation, and run the compressor for more than three minutes.
– Release the high pressure and low pressure valve caps.
– Close the high pressure valve completely using an L-wrench.
– After about two minutes, close the low pressure valve completely.
– Stop running the air conditioner.
– Separate the connecting pipe.
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