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28-12-2011, 05:30 PM #1
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Hey, I am new to : RE
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Compressor Label R134a but the label inside the unit is R404a
I will repair a Desmon chiller I see the label inside the unit it is R404a refrigerant but when I see the compressor the label is R134a. That why I cannot start to repair because I dont know what refrigerant I will use. Can you help me with this. Thank You
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28-12-2011, 05:37 PM #2
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Re: Compressor Label R134a but the label inside the unit is R404a
has the compressor been changed before? what does the expansion valve say- probably best to contact the manufacturer for comfirmation
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28-12-2011, 06:35 PM #3
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Re: Compressor Label R134a but the label inside the unit is R404a
In your ambient, it would most likely to be R-134a, Difference between compressor for 134 and 404 is displacement.
Check the running pressure, it might help you.
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30-12-2011, 02:07 PM #4
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Re: Compressor Label R134a but the label inside the unit is R404a
Check the system pressure after it has been standing off for some time,check your ambient temperature then use a comparator to get the pressure/temperature readings and you will then know what the system is charged with
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15-01-2012, 09:49 AM #5
regular poster
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Re: Compressor Label R134a but the label inside the unit is R404a
check your t.x valve.
