NFPA 101 has commentary that states that kitchen hood suppression systems are not required to activate public mode alarm for fire alarm systems.
Our Authority Having Jurisdiction stated that since the kitchen hood systems are provided in lieu of required sprinkler systems, then they are required to activate public mode alarm.
What is the generally accepted practice for kitchen hood suppression monitoring?
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10/26/2021 08:08:11 am
It depends on the application. Large kitchens with large seating areas with the kitchen NOT OPENED to the diners, I typically do not activate the notification appliances. Kitchen Hoods in other applications, I have activated the notification appliances. Always activate the transmission circuit to notify the responding fire department.
10/26/2021 08:13:59 am
Section 18.104.22.168 of NFPA 17A - Standard for Wet Chemical Extinguishing Systems, 2017 Edition requires that if a fire alarm is provided in the building, activation of the kitchen hood suppression system shall activate the fire alarm system.
10/26/2021 08:55:01 am
101 allows either connection or no connection for life safety purposes.
10/26/2021 10:18:55 am
The IFC requires that alternative extinguishing systems installed where there is a fire alarm system are required to activate the fire alarm system. And why wouldn't you want that? Regardless is the kitchen is open to seating or not, if there is a fire (thus activating the suppression system) get people out of the building, which is the most important thing.
10/26/2021 12:17:16 pm
Agreed. Our industry strives for life safety, therefore the most important thing is to evacuate the building. I can see if the system is prone to false alarms but a complete hood activation in my opinion calls for a building evaluation.
10/26/2021 06:38:56 pm
Plus, if the hood drops on the cook's line in the middle of dinner service, it's not like they're going to get their beef Wellington 20 minutes later. Typically the equipment will have the gas shut off and get wheeled outside for cleaning / decontamination then reinstalled. Add to that recharge the wet chem cylinder and replace the activation elements. Close the restaurant and apologize to the guests.
10/26/2021 11:54:37 am
If there is no FA we require a local horn/strobe on the exterior of the building. They usually just use a120V version so it’s simple to power off the hood branch circuit.
Jason Lupa, PE
12/3/2021 09:37:01 am
The IBC provides requirements WHEN to install life safety equipment. IBC [2015 & 2018] requires automatic fire suppression system to be connected to the building’s fire alarm system.
11/1/2022 11:32:03 am
I have less complex question that relates. We have a stand alone open air pool pavilion with no attached building. There is a gas grill under the roof with a very elaborate hood/exhaust/Ansul system. There is no fire alarm system in this pool pavilion. Fire inspector wants the Ansul system monitored by the clubhouse fire alarm system that is 100' away. Is he correct?
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