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Thread: Commercial Ice Cream Machine Accumulator Icing up

  1. #1
    Join Date
    Aug 2020
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    Commercial Ice Cream Machine Accumulator Icing up

    Hello

    Hope everyone is well,

    I am looking for confirmation if the following machine is operating as it should as i am a worrier


    We have a new commercial soft serve ice cream machine in which uses a Gree branded rotary compressor using R410A at a 600g charge

    The machine was sold without gas so needed a full charge from new and these models have the accumulator built right onto the side of the compressor with the suction line right into the top and outlet directly at the bottom into the compressor housing. The machine has been fully vacuumed down and then 600g weighed into the system and the machine works perfectly without any problems but what we noticed was the accumulator is icing up. This does not go onto the compressor but it is on the accumulator and small section of suction line that is not insulated.

    Obviously on your standard compressor we expect to see frosting on the suction line an inch or two before the compressor and with the accumulator on these particular Gree compressors not having insulation and it was a very hot day in the workshop its understandable but just looking for opinions if this would be perfectly normal operation,

    Thank you in advance
    Steve

  2. #2
    Join Date
    Oct 2009
    Location
    Atlanta,Ga.
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    728
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    Of course it will frost up.If it doesn't frost, you won't be cold enough to make ice cream.The suction gas is below 32 degrees.It will frost .you can insulate it.But they don't usually insulate suction line accumulators.their job is to boil off any liquid in the suction lines so it doesn't enter the compressor.you want ambient air around the accumulator.to help boil off any liquid refrigerant that may get into it.Frosting only means the suction temp is below 32 degrees.If it wasn't frosting, the evaporator would not be cold enough to freeze Ice Cream.The suction line may not be frosting, because it is insulated!!!!

  3. #3
    Join Date
    Aug 2020
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    Thread Starter
    Much appreciated for the reply it was more than fact it was not insulated that was giving me that slight doubt as obviously when the ice cream gets down to temp it switches off and you get some water run off from the melting ice in the machine but in the UK today is was a very warm one for a change which made the ambient air much higher than normal day to day. Thanks again

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