Precautions For The Safety - Samsung AE090JXYDEH Service Manual

Precautions

1-3 Precautions for the Safety

 Do not pull any electric wires and do not touch an auxiliary power switch with a wet hand.
– There is a danger of electric shock or fire.
 In case any wire or power plug has been damaged, replace it to eliminate any possible danger.
 Do not bend the power cord by force and do not put any heavy object on the power cord.
– There is a danger of electric shock or fire.
 Do not use multi socket.
– There is a danger of electric shock or fire.
 Ground the product if necessary.
– Be sure to ground the product if there is any danger of electric leakage due to water or moisture.
 Be sure to turn off the auxiliary power switch or pull out the power plug during replacement or repair of electric parts.
– There is a danger of electric shock.
 In case the product will not be in use for a long time, the battery of remote control should be kept separately.
– Leakage of inside fluid can cause break down of remote control.
 The installation must be done by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard.
– Installation by an unqualified person may cause a water leakage, electric shock or fire and so on.
 The electric work must be done by service agent or similarly qualified persons according to national wiring regulations and use
only rated cable.
– If the capacity of the power cable is insufficient or electric work is not properly completed, electric shock or fire may occur.
 Use only rated parts and tools.
– If you don't use the rated parts and tools, it can cause trouble with the air conditioner and bring about injury.
 If any gas or impurities except R410A refrigerant come into the refrigerant pipe, serious problem may occur and it may cause
injury.
 Leak test must be done using only Nitrogen(NO
 R410A refrigerant is used for EHS.
– When using R410A, moisture or foreign substances may affect to the capacity and reliability of the product.Safety precautions
must be taken when installing the refrigerant pipe.
– The design pressure of the unit is 4.1MPa. Select appropriate material and thickness according to the regulations.
– R410A is a quasi-azeotrope of two refrigerants.
Make sure to charge liquid one when adding refrigerant.
If you charge gaseous refrigerant, it may affect the capacity and reliability of the product as a result of change formation of the
refrigerant.
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