Air Separator in Chilled Water Systems?
Air Separator in Chilled Water Systems?
(OP)
Do we need an air separator in chilled water systems?
I know that it is a must for hot water systems... but I am not sure if we need in the chilled water systems?
Is this topic discussed in any engineering guidelines, codes, requirements, ashrae?
I know that it is a must for hot water systems... but I am not sure if we need in the chilled water systems?
Is this topic discussed in any engineering guidelines, codes, requirements, ashrae?





RE: Air Separator in Chilled Water Systems?
For starters try chapter 12 of the 2004 ASHRAE handbook on HVAC Systems and Equipment.
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: Air Separator in Chilled Water Systems?
It mentions: "Air and other gases must be eliminated from the flow circuit", and I understand that.
But what I've heard is that in chilled water systems there aren't generation/creation of air bubles or gases, this only occurs in the hot water systems (boiler).
RE: Air Separator in Chilled Water Systems?
RE: Air Separator in Chilled Water Systems?
RE: Air Separator in Chilled Water Systems?
I'm currently looking at putting a 24" air-dirt separator in a system that doesn't have a lot of vertical rise. These units are about 13ft tall!
RE: Air Separator in Chilled Water Systems?
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: Air Separator in Chilled Water Systems?
Your system will, at some point, take feedwater......separators are inexpensive.
RE: Air Separator in Chilled Water Systems?
RE: Air Separator in Chilled Water Systems?
RE: Air Separator in Chilled Water Systems?
RE: Air Separator in Chilled Water Systems?
"Vortex action" separators have a definite pressure drop, 5 ft or so as I recall, and paying for that day-in, day-out is a waste. They are not cheap, and require significant structural reinforcement to hang them.
Automatic valves have a habit of leaking.