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11-10-2013, 08:00 PM #9
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Re: Brema Icemaker VM900 refrigerant charge
I just found that simmilar older Scotsman CM855 have these data for charge (of R502):
Low pressure just before harvest 28 psig (-19.4°C).
High pressure 240 psig (42,4°C).
Superheat of TXV is 3-4K.
It looks like that I have been close in my first attempt to charge it correctly without knowing what is factory weight charge. Sadly, I did not measure the weight.