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The Amerex KP automatic restaurant fire suppression system
protects the hood, duct and appliances.
The Amerex KP
Restaurant System is a preengineered, wet chemical,
storedpressure 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. 12385 “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.
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 “ONETWO” attack
against the threat of business loss due to cooking operation
fires.
Specifications:
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 does not harm
stainless steel surfaces.
AGENT CYLINDER :
The agent cylinder is a mild steel
DOT 4BW 240 specification cylinder, 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).
DETECTION:
The detection network uses a continuous
cable run with detectors specifically listed for use with the
Amerex KP System. No “S” hooks are allowed.
MECHANICAL RELEASE MODULE (MRM):
The mechanical
release module is the springloaded type using a mechanical
input and electrical, mechanical or pneumatic outputs. It is
capable of actuating from one to ten 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
one SPDT micro switch preinstalled.
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, and has a UL listed fixed temperature of
435°F. 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, one SPDT
microswitch, and “knockouts”. It is capable of firing up to 10
KP 375 cylinders and releasing up to 2 gas valves.
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 and
pipe outlet or discharge fitting.
STAINLESS STEEL CABINET (Optional):
An optional
stainless steel cabinet 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.
DISCHARGE NOZZLES:
Discharge nozzles are made of
chrome plated brass, and shall consist of a body, strainer,
tip, retaining nut 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 2 INCH SIZES: S: S: S: S:
A
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:
If an electrically operated gas
valve is required, it must be U.L. Listed for use with the
Amerex KP system and operate by using a micro switch and a
U.L. listed manual reset relay.
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 1 to 4 sets of dry
form “C” contacts are available.
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