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#195989 - 09/03/10 08:26 AM supervisory circuits
dbravo Offline
Member

Registered: 05/04/10
Posts: 21
Loc: NY, USA
Hello,

I am designing power for an exterior heated enclosure for domestic water piping.

the pwr source will be from stand-by generator circuit.

does the heater have to be supervised?

if so, from where? Fire alarm and/or building management interface panel?

thanks in advance.

Dean

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#195992 - 09/03/10 10:24 AM Re: supervisory circuits [Re: dbravo]
sabrown Offline
Member

Registered: 12/12/02
Posts: 283
Loc: Ogden, Utah, USA
An overall picture of why you are heating the system would help any replies.

And welcome to ECN.

Shane

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#195993 - 09/03/10 10:56 AM Re: supervisory circuits [Re: sabrown]
dbravo Offline
Member

Registered: 05/04/10
Posts: 21
Loc: NY, USA
to keep the pipes from freezing. It is a aluminum enclsosure (HB8E-D) with dual 1900W heating elements. The circuit is fed from stand-by generator distribution.

not to be pointed in right direction for nfpa supervisory ckts.

thanks

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#196006 - 09/03/10 09:56 PM Re: supervisory circuits [Re: dbravo]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 4764
Loc: Brick, NJ USA
Dbravo:

Welcome to ECN forums.

Additional information on the project is required;

Why are heaters required, other than freezing? What type/use group of structure/building?

Is the gen a legally required system, or is it an optional system?

Supervisory circuit to bldg mgt sounds like a good move. The FACP? Perhaps, if the water is destined for fire supression use.

More info will get you more answers and opinions.
_________________________
John

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