The above Model is old but is a necessity. At present we have a problem with the refrigeration side of it. It being old and still R12 Freon doesn't gets to its required -20 psi. What would be the best thing to do. Open for any suggestion please.
Thu Nov 24 2016
Cryyostat Model 1800
Wed Nov 30 2016Reply from JOE
Unless you have a freon charging system you don't have any options.
Maybe your facilities maintenance can service the unit.
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