5 Ton AC load

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kingpb

kingpb

Senior Member
Location
SE USA as far as you can go
Occupation
Engineer, Registered
For "guestimating" I have typically used 1.5KVA/ton, and hasn't failed me yet.

The only thing I will caution folks of is to watch your units, e.g. kW does not equal KVA when motors are involved.
 
C

cubdh

Member
To the poster who said he/she doesnt feel comfortable with rules of thumb.
When estimating power consumption. Rules of thumbs are all we can go by and of course to an extent intuition, and extra details can never hurt.

I have done a lot more reading all over the net and yes 1 Ton of ac is about 1.335 kW. So yea 1.5 kW per Ton would be a safe, good guess.

I believe the 1 ton = 1 HP is very low considering 1 HP is about .75 kW
 
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topgone

Senior Member
cubdh said:
To the poster who said he/she doesnt feel comfortable with rules of thumb.
When estimating power consumption. Rules of thumbs are all we can go by and of course to an extent intuition, and extra details can never hurt.

I have done a lot more reading all over the net and yes 1 Ton of ac is about 1.335 kW. So yea 1.5 kW per Ton would be a safe, good guess.

I believe the 1 ton = 1 HP is very low considering 1 HP is about .75 kW
Click to expand...

These are the reasons why rules of thumbs get me edgy:

  1. http://www.allseasonshire.eu/blog/category/air-conditioning/
  2. http://www.fypower.org/res/tools/products_results.html?id=100137
  3. http://apps1.eere.energy.gov/consumer/your_home/space_heating_cooling/index.cfm/mytopic=12340
  4. http://www.heritagehtg.com/products.asp
"We do it right the first time"
 
glene77is

glene77is

Senior Member
Location
Memphis, TN
Top,

IMO, you should stay with your equations and math.
Mathmatics can describe your logical reasoning,
and allow you to build on your thoughts.

For example, in this thread, you stuck to your guns,
used the math to describe your thoughts,
you think you found an error,
and you made a rational correction.

Good for you.
Too many electricians are handicapped
by only being able to read the tables!

...
 
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