hi every body

[josef]

Hi Ahmed.ragab, are you sure with 3500kg/an hour? - it is not more?, much operators so works. Josef.

[US Iceman]

HI.

2-the problem here that the amount of NH3 in -40 pump package is not enough to load it with new freezer ...

Is your refrigerant charge too low, so you are using the liquid in the -6C intercooler?

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This is where I have difficulty in following your description of the operation.

...so we load the new freezer from -6 pump package which feed (SURGE DRAM) vessel which feeding directly evaporator coils of freezer.

Are you pumping liquid from the -6C vessel to the freezer evaporator coils? I do not understand what the surge drum is for.

3-we make a drop in pressure before the vessel entrance by expansion valve (from-6C to -40C).

Where is the this at?

If you are doing what I think you are doing, you are pumping liquid from the -6C vessel to the freezer coils and the hand expansion valves on the freezer coils are almost closed so that you can get a low pressure equal to -40C.

Is that correct?