Signature Kitchen Suite SKSCW181RP, Руководство по обслуживанию

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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 flame.
There is a risk of fire.
Do not store inflammable
ether,benzene,alcohol,chemicals,LP
gas,etc.in the refrigerator
There is a risk of
explosion or fire.
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 fire 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 inflammable,so make sure to remove heat source or flame during the
work.(Smoking is strictly prohibited.)