Ansul system

Status
Not open for further replies.

jssilvia

Member
Just looking for some help on a ansul system in a commercial kitchen. Trying to find out if all the plugs on the cookline need to be shut off when the ansul system trips. All of the equiptment is gas fired, the electricity is just used for the electronic ignition and the controls on the equiptment. There is no electric heat sources
 

copper chopper

Senior Member
Location
wisconsin
anything under the HOOD will have to be shut off when the ansul trips- all outlets, lights, any switches that control anything, if its located under the hood you have to run it thru a contactor or relay or shunt trip, what ever you desire.
 

gadfly56

Senior Member
Location
New Jersey
Occupation
Professional Engineer, Fire & Life Safety
What copper chopper said. The AutoMan control head usually comes with four (4) form "C" relays with pigtails. DO NOT make the connections inside the Ansul enclosure; it's not listed as a junction box. The pigtails have to be brought outside the enclosure into one or more listed JB's.
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector
Here are some earlier threads you might want to review:
http://forums.mikeholt.com/showthread.php?t=144755&highlight=ansul
http://forums.mikeholt.com/showthread.php?t=119246&highlight=ansul
http://forums.mikeholt.com/showthread.php?t=114477&highlight=ansul

I may be wrong, but it still appears to me that the extent of circuitry that needs to be de-energized varies with jurisdiction.
Some folks seems to want ALL circuits off, some only those supplying heat sources.
A call to your local Fire Marshall/Building Inspector might be warranted.
 

gadfly56

Senior Member
Location
New Jersey
Occupation
Professional Engineer, Fire & Life Safety
Here are some earlier threads you might want to review:
http://forums.mikeholt.com/showthread.php?t=144755&highlight=ansul
http://forums.mikeholt.com/showthread.php?t=119246&highlight=ansul
http://forums.mikeholt.com/showthread.php?t=114477&highlight=ansul

I may be wrong, but it still appears to me that the extent of circuitry that needs to be de-energized varies with jurisdiction.
Some folks seems to want ALL circuits off, some only those supplying heat sources.
A call to your local Fire Marshall/Building Inspector might be warranted.
NFPA 17A only requires that fuel/energy be disconnected from "covered" appliances. So, a bagel toaster, which does not produce "grease-laden vapors", does not need suppression coverage and if located under the Type I hood, would not need to be shut down when the suppression system is activated. However, the model IBC (904.11.2) requires that fuel must be shut down "to the cooking equipment". In these parts, they take that to mean everything. AHJ's have argued that any source of energy could reignite vapors; I call BS on that, but my company doesn't get paid to fight that fight so we go along.
 
Status
Not open for further replies.
Top