The fire suppression system can be disarmed by opening the control panel and selecting the disable button. Once disabled, the system will shut down for a limited time before it reactivates. In most cases, the time for auto-reactivation is listed on the control panel door. Next, identify if your hood suppression system uses water or fire suppressant chemicals. You should see a label on the system that tells you what kind of system you have installed. If you need more time to look for the label, you might have to disable the system manually to enact an extended shutdown. For water suppression systems, look underneath the kitchen hood until you see the water valve. Turn the
water valve off to fully disable the system. If your system uses fire suppressant liquid, turn off the fuel shutoff valve, which should also be located
underneath the hood. If you cannot find the valve, you may have to follow the piping from the hood until you find the suppressant holding tank. The tank itself will have a shutoff valve that will disable the system until the proper maintenance work is done.