SKSWK245LS User Manual

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9. Sealed System Repair Method of Refrigerator with R600a Refrigerant

9-1.Outline

9-1-1. Safety warnings and cautions before Sealed System Repair

Keep away ame.

There is a risk of re.

Do not store inammable

ether,benzene,alcohol,chemicals,LP

gas,etc.in the refrigerator

There is a risk of

explosion or re.

9-1-2. Checkpoints before Sealed System Repair

Open the Cover ASM,Back-M/C of refrigerator and check the type of refrigerant indicated on a compressor

before starting work.A yellow label is adhered to the compressor for the refrigerator using R600a as refrigerant.

9-1-3. Features of R600a Refrigerant

Non-polar natural gas refrigerant (CH(CH3)3)

Since R600a is same series as butane gas,there is danger of re when discharged into air at appropriate

concentration (extreme handling is required for sealed system repair of cycle).

Explosion concentration:1.8%~8.4%/Vol.

Burning temperature:494 ° C

9-1-4. Features of R600a Refrigerator

With refrigerant quantity of 60%or so for the refrigerator using R134a as refrigerant

Large vacuum level at suction pressure (at low pressure side)

COMP capacity of the refrigerator using R600a as refrigerant is large by 1.7 times than that of the refrigerator using R134a.

Labels as in Figure are displayed at the compressor of a refrigerant for R600a and the back plate of refrigerator.

Be careful about the ventilation during the repair of refrigerator cycle.

R600a refrigerant is inammable,so make sure to remove heat source or ame during the

work.(Smoking is strictly prohibited.)

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LG Electronics SKSWK245LS