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Thread: Replacing R12
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03-06-2009, 04:26 AM #1
Replacing R12
Hello Guys, i'm new in RE and I need some help.
I have this thesis at school and my group currently facing a challenge of replacing the old ac system of a hospital that uses R12. The problem is the hospital management doesn't want to totally replace the system but just to retrofit it to save money. As we all know, R12 will totally be phased out soon, so I'm thinking of a possible solution. Here are my questions:
1. What are the possible refrigerant substitutes to R12?
2. Can I use ammonia as substitute knowing that the ac system is installed in a hospital? Why or why not?
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