Chilled water systems

[hvac2379]

Can anyone tell me the basic operation of chilled water systems, including the pump and how it cools and heats the space?

[jayguy]

wow...do you want that in 1 sentence or the 3 million it might take. there are many different ways to make and use hot/cold water. please be a little more specific. sorry about that, but the best we could do is a very vague description. i wouldn't want to steer you in the wrong direction about something.

[gsxrsquid]

how much time have you got? phase change or absorption? I'm curious why you are curious. :-)

[frozensolid]

The chiller chills the water. The boiler heats the water. The pump ciculates the water. Simple. :D

[pecmsg]

Originally posted by frozensolid
The chiller chills the water. The boiler heats the water. The pump ciculates the water. Simple. :D

That just about covers the basics. (you left out free cooling)

Any more questions?

[vzcooler]

check out a drinking fountain, it is a chiller , it uses refrigerant to absorb heat from the water , then sends it up to the bubbler where you get your cold water, chillers do the same thing in a much larger capacity, using a large refer system to extract heat from ciculating water, pumping it out through the building , to your air handlers where inturn the water now absorbs the heat, to cool the space. them the water in the system is sent back in hoola hoop fashion to the chiller to rid the h2o of the heat it now holds, the purpose is simple, if you had to cool a huge building with say and r22 systemn you would need a gynormous amount of refrigerant, instead you now use good old cheap water as your medium instead, sorry this is not real scientific but it should help you a little. there are a lot of real smart guys on this site , just ask them smaller more specific question one at a time, it is only fair. go to the carrier site and look up some chillers ,

[jayguy]

sorry...dont take it personally...sometimes we get a little too technical and we forget that sometimes you just need a little direction when you first start out. keep plowing through it. try to be as technical as you are comfortable with. if one of us goes in a direction that seems familiar to your situation, dont let him go, keep on it...good luck

[airtekhvac]

Try this for starters:

http://www.chillers.com/RefrigCycle.htm

[screwed548]

Try this. Look for AG31-003-1
http://www.mcquay.com/McQuay/Literature/Literature