|
Amerex KP Systems
In either automatic or manual actuation the system
works in this manner:
- When a fire starts, the detection network,
consisting of fusible links or pneumatic tubing, will
automatically detect the fire or the manual pull station
can be used, releasing a low pH agent throughout the
hood, duct and onto the appliances.
- Either method of actuation will interrupt gas or
electrical power to the appliances preceding system
discharge.
- The Amerex KP agent quickly suppresses the fire and
cools the fuel while securing the vapors with a
smothering foam reaction.
The combination of the Amerex KP system and an Amerex
Model B260 or B262 Wet Chemical extinguisher provides
restaurants with a “ONE-TWO” attack against the threat
of business loss due to cooking operation fires.
Restaurant Kitchen Gas Appliances Protected by: Amerex
KP Restaurant Fire Suppression System
General Specifications: The Amerex KP Restaurant System is a pre-engineered, wet
chemical, stored-pressure type with a fixed nozzle agent
distribution network. The system is listed by
Underwriter’s Laboratories, Inc., ULC and tested to U.L.
Standard 300. The system shall be designed, installed
and maintained in accordance with: Amerex Part No. 20150
“Design, Installation and Maintenance Manual”, N.F.P.A.
96, N.F.P.A. 17A, local codes and ordinances by an
Authorized Amerex KP Systems Distributor using factory
trained personnel.
Agent:
The system agent is Amerex KP liquid fire suppressant, a
potassium acetate based solution that suppresses cooking
grease fires both through saponification and cooling.
The agent has a pH of 9 or less and will not harm
stainless steel surfaces under normal conditions.
Agent Cylinders: (2.75, 3.75, 4.75, and 6 Gallon)
The agent cylinders are mild steel DOT 4BW 240
specification cylinders, tested to 480 PSI (3309 kPa).
The agent cylinder/discharge valve assembly is fully
factory charged with Amerex KP liquid agent and
pressurized to 240 PSI (1655 kPa).
Mechanical Release Module (MRM):
The mechanical release module is the spring-loaded type
using a mechanical input and electrical, mechanical or
pneumatic outputs. It is capable of actuating from one
to ten agent cylinder/valve assemblies using one
nitrogen cylinder and is operated either automatically
by the detection network or manually by a remote manual
pull station.
The MRM enclosure, available in either stainless steel
or red painted steel has a system status indicator and a
window to observe the nitrogen cylinder pressure. The
enclosure has provisions for applying tamper seals after
final testing or periodic maintenance. The MRM enclosure
has knockouts on three sides (top, bottom & right) to
accept conduit. The MRM has two SPDT micro switches
pre-installed.
The MRM enclosure, available in either stainless steel
or red painted steel has a system status indicator and a
window to observe the nitrogen cylinder pressure. The
enclosure has provisions for applying tamper seals after
final testing or periodic maintenance. The MRM enclosure
has knockouts on three sides (top, bottom & right) to
accept conduit. The MRM has one SPDT micro switch
pre-installed.
MRM DETECTION:
The detection network uses a continuous cable run with
detectors specifically listed for use with the Amerex KP
system.
MRM LINEAR FUSIBLE LINK DETECTION:
The link to link system consists of four major
components -
conduit connector, cable segment beginning and end,
conduit box, and link to link cable segment. The link to
link cable segment ensures that the links are equally
spaced at 24” center to center and yields continuous
linear detection from end to end of the hood.
PNEUMATIC RELEASE MODULE (PRM):
The PRM offers superior detection by using a linear
pneumatic detection system. The PRM detection system
consists of the PRM, tubing and end of line fitting. The
tubing is pressurized through a small “accumulator”
inside the enclosure, routed throughout the hazard area.
When exposed to a fire condition, the tubing ruptures,
relieving all of the pressure in the tubing and
accumulator thus firing the system using a nitrogen
cylinder. The PRM comes complete with enclosure,
accumulator, end of line fitting, connector for
mechanical manual pull, two SPDT micro-switches, and
“knock-outs.” It is capable of actuating up to ten
cylinders and releasing two gas valves. Available in
stainless or red enclosure.
ACTUATION CYLINDER:
The actuation cylinder is filled with 10 cu. in. of
nitrogen and has an integral pressure gauge which allows
easy field verification of pressure. This cylinder is
capable of being refilled in the field by an Authorized
Amerex KP Systems Distributor.
AGENT CYLINDER BRACKET:
The agent cylinder bracket is steel, painted red, with a
factory supplied discharge hose, pipe outlet or
discharge fitting.
STAINLESS STEEL ENCLOSURE (Optional):
An enclosure housing an MRM and one agent cylinder is
available. The pressure gauges for the nitrogen cylinder
and the agent cylinder are visible without removing the
front cover of the cabinet. Also available in a
stainless steel single agent cylinder enclosure.
DISCHARGE NOZZLES:
Discharge nozzles are made of chrome-plated brass, and
shall consist of a one piece tip/body, strainer and blow
off cap.
MANUAL PULL STATIONS:
The manual pull stations are a “dual action” type. Both
a ring pin and lever must be pulled in order to
discharge the system manually.
MECHANICAL GAS VALVES – ¾" TO 3" SIZES:
A brass body mechanical gas valve, specifically listed
by U.L. for use with the Amerex KP system, shall be
installed for automatic shut off of gas whenever gas
appliances are used. The valve has a "pull to close"
design requiring a pull force to trip a latch which
holds the valve in the open position. The cover of the
gas valve has a visual indicator showing the valve’s
position. Existing mechanical valves, if operating, may
be used according to the listed manual.
ELECTRICAL GAS VALVE ¾" TO 3" SIZES:
If an electrically operated gas valve is required, it
must be U.L. Listed for use with the Amerex KP system
and operated by using a micro switch and a U.L. listed
manual reset relay. Upon system actuation, current to
the solenoid is interrupted by a micro-switch causing
the gas valve to close. A manual reset relay must be
used with electric gas valves.
ELECTRIC MICRO-SWITCH:
U.L. listed electric micro switches are provided to
accomplish system output functions. The switches are
"stackable" inside the MRM / PRM without requiring extra
mounting hardware. From one to four sets of dry form "C"
contacts are available. Two factory installed
micro-switches are provided.
Amerex recognized and addressed the unique hazards of
modern restaurant cooking by creating the Model B260
and B262 Class "K" Wet Chemical "Kitchen Use" fire
extinguishers.
These extinguishers, along with the research and tests
to
develop them, have changed the way that NFPA regards
cooking grease fires. After July 1, 1998, all new
installations
of fire extinguishers protecting cooking hazards require
a Class "K" extinguisher. This class recognizes the
unique nature of cooking grease which requires not only
extinguishment but the cooling effect which is best
obtained with WET CHEMICAL extinguishers. When the KP
System is used in combination with the Amerex Model
B260 or B262 you have the perfect two step attack for
kitchen fire suppression!
NFPA-10, 2010 Edition (6.6.1) "Class K fire
extinguishers shall be provided for hazards where there
is a potential for fires involving combustible cooking
media (vegetable or animal oils and fats)."
Extinguisher Categories
Restaurant Systems
Fire Types
 Class K
|
