Can the CORE waterline be tied into the building sprinkler system instead of a dedicated water line?
Yes, this is the preferred method as the sprinkler line is typically tied to a supervised valve. It is
important to have the pressure reduced to the proper CORE operation pressure of 30 to 50 psi.
If an Energy Management System (EMS) is ordered with CORE, are the thermostatic duct stats different than the Firestat?
Yes, the EMS sensor is a RTD and the CORE Firestat is a fast acting switch.
Can CORE be ordered if a utility cabinet is not mounted on either side of the hood?
No, not at this time.
Is an electric gas valve required with CORE?
Yes, this is an entirely electric system and mechanical valves will not work.
When will the battery backup need to be replaced or what maintenance is required for this component?
Every six months, a certified technician should inspect all components of the CORE system to verify
proper operation. Every three years, the battery pack in the battery back-up module should be replaced.
The replacement battery is hot swappable, which means the battery can be replaced while input power is
applied to the unit.
At what temperature will the Firestat signal fire condition?
The Fenwal Firestat is used in the duct connection to measure temperature. The standard setting of
the Firestat is 360 degrees F; if temperature is higher than the setpoint then the contacts will close
on the stat and energize the fire system.
How would the fire marshal test CORE onsite?
The fire marshal will verify that both the pull station and the Firestat will active the fire system
(both the duct and plenum system and the appliance system). The fire marshal will also verify that the
CORE water line is hooked up to a proper source, such as a dedicated line or a fire sprinkler system.
What happens if the surfactant is empty?
There will always be at least 1 gallon of surfactant in the tank for a fire situation. The tank has a
low level sensor that detects when 1 gallon of surfactant remains in the tank, and saves this for use in a fire.
Can the Ansul appliance protection system be remote mounted?
Yes. It is preferred to have the Ansul system pre-mounted on the exhaust hood, but it can be remote mounted.
How does the surfactant assist in putting out a fire?
The surfactant raises the pH of water thus acting as a fire suppression agent.
Are fusible links used in the hood with the CORE system?
No, all heat detection is done via the Firestat installed in the hood riser.
What operating pressure does the CORE system require in order to work correctly?
The CORE Protection should be between 30 and 50 PSI when in operation to ensure correct operation.
How does the Ansul appliance protection fire in the CORE system?
If the hood Firestat installed in the riser senses a temperature hotter then its internal setpoint or
if the remote manual pull station is pulled, an electric signal is sent to the appliance protection fire
system and the hood duct and plenum water system. An electric solenoid operated Automan activates the
appliance surface protection system.
What should be used to shut down the gas and electric appliances under the hood in fire condition?
Gas appliances can be shut down with an electric gas valve reset relay. Electric appliances are shut down
with the use of a shunt trip breaker wired to the main control panel.
What needs to be done when the CORE system needs to be reset?
Multiple actions are required to reset the fire system. First, the duct Firestat must be cooled to below
its internal set-point and the remote pull station must be reset using a standard Allen wrench key. Once both
of these devices have been reset, the timer will automatically stop the fire system once its time duration
has ended. An alternative method to bypassing the timer is to press the fire system reset button on the face
of the surfactant pump. This will de-energize the timer and reset the system. NOTE: The Firestat must be cool
and the remote pull station must be reset for this button to work. The appliance protection fire system must be
recharged with liquid agent, a new canister must be installed and the fire system must be re-armed. After a fire,
full inspection by a certified professional must be conducted prior to restarting the fire system.
How long does the water spray in the duct and plenum upon the fire system being activated?
The timer included in this package is energized when the fire system is activated, either by the remote pull
station or by Firestat. The timer holds the fire system duct and plenum protection on for a factory setting of
30 minutes. The timer is adjustable on an application specific basis, from 30 minutes to 10 hours. If the Firestat
is still hot or the pull station is still pulled and this time expires, the timer resets and water continues to spray.
How does the remote pull station activate the fire system?
The Model FSF103 pull station is a manual device that activates the fire system. The pull station has one set of
normally open contacts and mounts to any standards junction box. When the front lever is pulled, the electrical
connection to the fire system is completed, thus activating the fire system.
