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Old 04-05-2011, 08:49 AM   #1
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Load Calcs for Commercial Kitchen


Anyone well versed in Commercial building electrical calcs? I think I have it
down but have a few questions. NEC 220.56 Kitchen equipment demand factors. Trying to nail down exactly which kitchen items apply. Would freezers and refers situated out of the kitchen apply?

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Old 04-05-2011, 04:39 PM   #2
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Load Calcs for Commercial Kitchen


It does apply if the freezers and refers are being fed from the same panel.

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Old 04-05-2011, 08:46 PM   #3
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Load Calcs for Commercial Kitchen


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Anyone well versed in Commercial building electrical calcs? I think I have it
down but have a few questions. NEC 220.56 Kitchen equipment demand factors. Trying to nail down exactly which kitchen items apply. Would freezers and refers situated out of the kitchen apply?
It do count on the same panel.

And make sure if this is on 120 volt circuits you may want to look up related to GFCI requirment as well.

Merci.
Marc
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Old 04-05-2011, 10:55 PM   #4
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Load Calcs for Commercial Kitchen


This project is a pizza parlor and has many different appliances. The code section kind of leaves it up in the air as to what appliances the demand factors would apply to.
Here is the list:
Induction cooker
Microwaves
freezers
Refers
coffee makers
deli case
grill
pasta cooker
slicer
hot plates
convection oven
salad and Pizza stations
coke dispenser
mixer
soup warmers

Would all of these items apply even if for instance the coffee warmers are in the dining area? I guess another question is, can the appliances
facilitate kitchen activities or do they have to be used in the kitchen. I know Hivolt said the remote refrigeration units would apply but I just
want to be sure I'm on the right track.
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Old 04-07-2011, 01:19 AM   #5
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Load Calcs for Commercial Kitchen


Quote:
Originally Posted by Mobetta View Post
This project is a pizza parlor and has many different appliances. The code section kind of leaves it up in the air as to what appliances the demand factors would apply to.
Here is the list:
Induction cooker
Microwaves
freezers
Refers
coffee makers
deli case
grill
pasta cooker
slicer
hot plates
convection oven
salad and Pizza stations
coke dispenser
mixer
soup warmers

Would all of these items apply even if for instance the coffee warmers are in the dining area? I guess another question is, can the appliances
facilitate kitchen activities or do they have to be used in the kitchen. I know Hivolt said the remote refrigeration units would apply but I just
want to be sure I'm on the right track.
The only way you can do this is get all the nameplate info and how many units you have there and go from there.

and any circuits that served or feed from that load centré it have to be counted for that one if you have other load centré then for that panel you have to find that circuits and count as well then do the grand total count the load demand count should not excessed of the main breaker or master service entrance rating.

A qualifed electrician or electrical engineer will have to help you on this one due there are some bit of codes it will cover on this.

Merci.
Marc
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Old 04-07-2011, 01:34 AM   #6
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Load Calcs for Commercial Kitchen


commercial is not legal for a DIY to do. To CYA I'd advise consulting with a licensed professional.
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Old 04-07-2011, 01:41 AM   #7
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Load Calcs for Commercial Kitchen


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Originally Posted by Saturday Cowboy View Post
commercial is not legal for a DIY to do. To CYA I'd advise consulting with a licensed professional.
TO OP.,

That why I rather have a electrician to deal with this and there is too many things can go wrong if not carefull and as I mention there is a bit of codes to follow so the best answer is get a electrician come in and deal with it.

Merci,
Marc
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Old 04-07-2011, 09:06 PM   #8
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Load Calcs for Commercial Kitchen


Appreciate the advice guys. Actually I am an electrician and have been for many years. I am studying electrical
design to further my skills. In doing so I run into questions that the code does not specifically answer.
I'm going to work my way step by step through this design and have a professional check it to see how
I did.
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Old 04-07-2011, 09:17 PM   #9
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Load Calcs for Commercial Kitchen


So therefore you been doing mostly resdentail side Oui?

I go either way so it don't bother me too much.

As far we know the NEC code is just a basic guideline where we can do with it.

However with Commercal kitchen it get little tricky to do the load demand I don't have the NEC chart with me at the moment but French electrical code yeah I have them ready next to moi. but I can get the NEC book anytime. { I left it at my shop at the moment }

Merci,
Marc

P.S. if you want to talk more we can use our sister site " Electrician Talk " fourm we have quite few commercal electricians there as well.

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