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Originally Posted by redleader
? At 10 PSI evaporateing temp is room temp, so why would you need to heat it? Or am I misunderstanding you?
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All of the information I know comes from our HVAC mechanic.. I'm no HVAC man myself.
Credible info or not, I don't know.. Maybe he's just high on refrigerant gas, who knows
The chiller uses 1500LBS of refrigerant, and on normal days run at a pressure of -10 PSI.
R-123 is much more dense than air, that's why SCUBA equiptment is required is there ever is a spill.
If you ever take a look at large building with enclosed mechanical HVAC rooms, there is usually a red/blue light outside of the building.. This is the vapor alarm if the refrigerant systems were to leak. In fact, our system is directly wired to the fire department, so if there is a leak, they are on the scene in minutes..
More info on centrifugal chillers.....
http://www.trane.com/Commercial/home.asp