DEFINITION OF TERMS
ACTUATION NETWORK
: Copper tubing, piping, hose, or combination of the three that allows nitrogen to be
supplied from the Mechanical Release Module or Pneumatic Release Module to the Agent Cylinder
Assembly(s).
AGENT CYLINDER / DISCHARGE VALVE
: Pressurized vessel with valve assembly containing Amerex Wet
Chemical restaurant fire suppression agent and expellant gas (nitrogen/argon).
AUTHORITY HAVING JURISDICTION (AHJ)
: The organization, office or individual responsible for
“approving” equipment, an installation or a procedure. The phrase “Authority Having Jurisdiction” is used in
NFPA documents in a broad manner since jurisdiction and approval agencies vary as to their responsibilities.
Where public safety is primary, the “Authority Having Jurisdiction” may be a federal, state, local or other
regional department or individual such as a fire chief, fire marshal, chief of a fire prevention bureau, labor
department, health department, building official, electrical inspector or others having statutory authority. For
insurance purposes, an insurance inspection department, rating bureau or other insurance company
representative may be the "Authority Having Jurisdiction"; at government installations, the Commanding
Officer or departmental official may be the "Authority Having Jurisdiction".
AUXILIARY EQUIPMENT
: Listed equipment used in conjunction with the Amerex Restaurant Fire
Suppression System to shut down: power, fuel and make-up air. Auxiliary equipment also operates
dampers, sound alarm signals or initiate fire alarm systems.
“
BAG TEST”:
A means of testing agent distribution piping to guarantee that each nozzle is discharging equal
or proper amounts of agent. Upon completion of a system installation, bags are placed over each nozzle and
the system is fully discharged. These bags are then weighed and compared for proper agent distribution
according to the system design.
BLOW-OFF CAP
: A cap (made of rubber or metal with a restraining strap) that covers the nozzle tip to keep
grease from plugging the orifice.
BRANCH DUCT
: Ductwork for exhaust from a single hood or hazard to a common duct.
NITROGEN CYLINDER
: A small, sealed steel cylinder containing nitrogen (refillable by distributor) used to
actuate the agent cylinder/discharge valve(s).
CABLE
: 1/16” diameter stainless steel cable (7 x 7 strand, 480# tensile strength) used to connect detectors,
mechanical gas valves and manual pull stations to the MRM.
COMMON DUCT
: Ductwork for exhaust from two or more separate hazards.
CONDUIT OFFSET
: A factory formed section of conduit that allows the cable for manual pull stations, gas
valves and detectors to make a smooth transition into the Mechanical Release Module or Pneumatic Release
Module.
COOKING APPLIANCE
: Includes but is not limited to ranges, fryers, griddles and charbroilers.
CORNER PULLEY
: A device used with the detection network, mechanical gas valve and manual pull station
which allows the cable to change direction 90° and still move freely for system operation.
DAMPER
: A valve or plate located within a duct or its terminal equipment for controlling the flow of exhaust
gases and air. Damper’s may also be present on cooking appliances.
DEDICATED APPLIANCE PROTECTION NOZZLE
: A nozzle dedicated to the protection of a cooking
appliance with an enclosed cooking hazard, like an upright broiler, which cannot be protected with “zone of
protection” nozzles. Therefore, must be protected with nozzles explicitly listed for that appliance.
December 2008
Section 1 General Information
Page 1 – 3
Amerex Restaurant Fire Suppression System (EX4658)
