Wow, you caught me at work on Saturday. NFPA 96 7-4.1 Upon activation of any fire extinguishing system for a cooking operation, all sources of fuel and electric power that produce heat to all equipment requiring protection by that system shall automatically shut off.
7-4.2 Any gas appliance not requiring protection, but located under the same ventilating equipment, shall also automatically shut off upon activation of any extinguishing system.
7-4.3 Shutoff devices shall require a manual reset.
What's the outlet for? If it has a waffle iron plugged in (or has the potential) it is included.
the lights you quote do not produce fire causing heat - FM here would say no.
Exhaust fans - hmm, let's think, I've got a fire, so the best thing I can do is to suck it up into a greasy duct and provide fresh air as well, NO, it shuts down when everything else does.
HVAC supply to room, they do not make us do that locally, I can find no code reference to it.
Hope that helps.
Re: shunt trips for kitchen hood#92193 03/05/0502:35 PM03/05/0502:35 PM
The HVAC and Hood fans always seem to change at whim. Sometimes they want it all off including the hood. Sometimes just fire/smoke dampers on HVAC with hood on full. I have come to not take anything for granted, and ask up front.
As far as things on the line it seems best to do it all on shunts or relays. (Except lights)
Mark Heller "Well - I oughta....." -Jackie Gleason
Re: shunt trips for kitchen hood#92197 03/08/0501:01 AM03/08/0501:01 AM
Like e57 said check with the AHJ before you install a hood electrical system. Last resturant we did the FM required the exhaust fans to stay running, and all electric and gas to shut down including the lights. He also required the fresh or make up air unit to shut down. He also wanted the hoods ansul system to cause an alarm condition in the fire alarm panel His explanation was that all sources of heat or power were to be off no fresh air in and the smoke to be exhausted. The alarm was to cause the building to be evacuated and the alarm company to call in the fire to the local 911 center.
Re: shunt trips for kitchen hood#92198 03/08/0507:22 PM03/08/0507:22 PM
I've been in the same boat as e57, and have had to do it both ways.
I prefer electrically held contactors to shunt trip C/Bs. 1.) The breaker supplying the power to the trips themselves might get turned off (even with a lockon) and go unnoticed 2.) Breaker space is usually at a premium in kitchens, never seems to be enough. The shunt trip needs an extra pole space. 3.) Contactor = less $$, and easier to get.
Re: shunt trips for kitchen hood#92200 03/10/0502:50 PM03/10/0502:50 PM
The kitchen exhaust system standard requires that the exhaust fan come on or stay on when the suppression system discharges unless the fire extinguishing system manufacturer requires shut down as part of the instructions included with the listing and labeling of the hood system. Use the hood system dry contact to re energize the exhaust fan motor contactor. If the exhaust fan is controlled by a manual motor control switch wire a load rated contactor in parallel with the manual switch and use the hood system dry contact to control the contactor. -- Tom H
"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison