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Kenneth199
16-11-2015, 06:40 PM
We had a discussion at work:

If you have a system with 50kg R507 freezer, and someone has charged another refrigerant into the system. e.g 10 kg R134a

How is it possible to figure out that its a mixup?

chemi-cool
16-11-2015, 08:36 PM
Had about the same with dry ice machine, 90kg 507 and someone charged 15 kg 134, it didn't work afterwards.
Had to recover the lot and recharge with 507.