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Old 03-25-2020, 09:21 AM   #1
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Default New Chiller power ratings

I am working on a project which has a new chiller. The electrical information provided includes an installed power rating (kW) and Power consumption rating (kW). 21.8 kW and 18.6 kW respectively. It is rated for 480VAC, 3PH.


Can anyone tell me what is the difference and what rating I should use to size my breaker and cables feeding this chiller?

Last edited by pete25; 03-25-2020 at 11:21 AM.
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Old 03-25-2020, 11:11 AM   #2
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We'll need to know voltage and 1Ø or 3Ø.
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Old 03-25-2020, 11:21 AM   #3
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Thanks, I have updated my post with that information
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Old 03-25-2020, 11:22 AM   #4
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Quote:
Originally Posted by micromind View Post
We'll need to know voltage and 1Ø or 3Ø.
Sounds european. Do their nameplates give amps & SF? May need to RFI them. (Request For Information)
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Old 03-25-2020, 02:50 PM   #5
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Are you really an electrician engineer or a recent graduate?
Your questions always seem to point towards the unknowing.
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Old 03-25-2020, 03:06 PM   #6
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21.8KW is the amount of energy it uses when it is operating.

18.6KW is the European equivalent of HP.

I agree with the above, it's European, they're the only ones dumb enough to rate the output of a motor in KW. Anyone with the intelligence level higher than an imbecile will use HP.
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Old 03-25-2020, 08:50 PM   #7
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21.8KW is the amount of energy it uses when it is operating.

18.6KW is the European equivalent of HP.

I agree with the above, it's European, they're the only ones dumb enough to rate the output of a motor in KW. Anyone with the intelligence level higher than an imbecile will use HP.
Just wait till the inspector looks for the MCA and MOCP to verify Pete installed the right breaker and wire sizes.....and Pete gets to tell him it's European, but he did the conversion....

That'll trigger the "is it UL listed?" conversation in no time flat.
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