Problem supplying power to York chiller

[andycn]

I have problems supplying power to a 17Ton 3 Phase 200V York chiller in a new residential construction. Street has 240V and no access to a 3 phase power. The chiller is 200V unit although the compressors arerated up to 240V. Electrician installed Kay Industries Phase converter that is a real pig: generates 265V on the third phase, makes a lot of noise and lights dim in the hous when it kicks in. Needless to say the protection circuitry on the chillers turns the power off to protrct the compressors. I spend a lot of money, HVAC contractor went out of business and there is no cooling in the house.

Is ther a modular 230V single Phase chiller that I could use in place of York?

Does anyone have a good experience with using Rotary Phase Converter in conjuction with a 3 phase chiller?

I have all airhandlers, piping and controls in place and no "chilled water".

Please help....

[kingfish]

A 17 ton chiller is too large to operate on single phase power.Phase converters will operate smaller 3 phase constant load motors with high single phase current draw. Most electric co will provide 3 phase where the motor HP is larger than 12 hp. First check with the power co enginnering dept. and see if thats an option, if not the system may have to be redesign to used several smaller chillers. Robert

[andycn]

and 3 phase power is not available in our subdivision, its many blocks away...

If I understand you correctly the 100 Amp Rotary Phase Convertor will not be able to properly power the two 32HP Scroll Compressors that are part of the York Chiller because the load is not constant and phase voltage and currents will vary?

Who makes good small modular chillers?

[caosesvida]

I agree with previous, talk to the power company. If you have electronic controls involved in the chiller, the phase converters are not really good at those. I don't know exactly what the sine wave is off of them but i doubt it is very smooth.

[Chomper]

VFD might be an option to start each compressor. This would eliminate the voltage dips. Using a VFD you could operate with single phase input while it outputs 3 phase to your comp. Of course your initial cost would increase further.

More than one ways to skin a cat.

[Chomper]

Originally posted by andycn
and 3 phase power is not available in our subdivision, its many blocks away...

If I understand you correctly the 100 Amp Rotary Phase Convertor will not be able to properly power the two 32HP Scroll Compressors that are part of the York Chiller because the load is not constant and phase voltage and currents will vary?

Who makes good small modular chillers?



Now I'm confused. Is it 17 or 64 tons.

[andycn]

The York chiller is rated 17.15 Tons and has two 10 Ton, 32HP Compressors

[qtip]

17 ton residential!!!!!!!!!!!!!
Man I am in the wrong business, my crib only take 3 tons!!!!http://smileys.smileycentral.com/cat/23/23_6_104.gif

[Freezeking2000]

Where are you located and why do you need a 17 ton chiller that is 3 phase? I do understand you muct have a bug home, but i believe you got over sold on this. You could probably jump out the phase monitors on the chiller and see what happens! Those motor protectors are very sensitive

[kingfish]

At 64 hp that one home would draw the power of a group of homes, if powered off a single phase power source, it would require the power co to provide major service. I would contact someone higher up the ladder at the power provider and explain what your needs are. Here in Houston, if you needed that much power, they would make an effort to provide it, and the homeowner would pay for it every time those 32hp pumps fired up. Robert

[wolfdog]

Something does not compute here......

10 ton .....32HP compressor?



I have one customer with a 35 ton chiller plus the cabana, bowling alley and other bldgs.

[Edited by wolfdog on 08-01-2004 at 10:24 PM]

[snipe70e]

Originally posted by qtip
17 ton residential!!!!!!!!!!!!!
Man I am in the wrong business, my crib only take 3 tons!!!!http://smileys.smileycentral.com/cat/23/23_6_104.gif

And a chiller? Am I wrong or are we talking about a really big house? I did not think a chiller would be used in a house.
Len

[airworx]

there a lot of home with chillers. sounds like your the guys who are the ones that install 100s of 5 ton systems instead of one or a few larger sytems. i would call a mechanical contractor not a residential contractor you find out of the phone book. if you cant find one call your local power company see who they use or call the nearest plumbers and steamfitters union and get a referance from them.

[R12rules]

It would be nice to know just what you have there.

We are all confused as to how much of a load you are working with.

10 tons, 17 tons, 32 horse power, etc.

Since you've come this far, I would recomend contacting a local outfit who specializes in Whisper Quiet poratble genarators.
Two people can have a quiet conversation while standing right next to one of thse beauties, while it is under full load operatin!
Ain't that nice?

You can lease one of these and be online almost overnight.
Whoever provides the generator probably has an electrical contractor who could do your hook up. And who ever does your hook up probably can recomend a good HVAC contractor to perform the system start up.


I realise your contractor went out of business, but maybe one of hismen could be contacted to assist with the details. Afterall, they were there for the project.


And I'll bet .... "that was sooooome project indeed!"