FM-200 FIRE SUPPRESSION SYSTEM - TM-55-1925-292-14-P0047

TM 55-1925-292-14&P

0002 00

FM-200 FIRE SUPPRESSION SYSTEM

The FM-200 fire suppression system is a manually actuated, stand-alone, total flooding fire suppression system.

It is designed to protect the engine room, frames 21 to 44, Auxiliary Machine Space (AMS) 1, and frames 44 to 54

by discharging FM-200 gas in the event of a fire in the engineering spaces. The FM-200 system consists of an

upper discharge system, a lower discharge system, and an alarm system.

The upper discharge system uses two 600 lb (272 kg) cylinder assemblies to rapidly flood the areas above the

bilge level with FM-200 gas. The upper discharge system also actuates the 60-second delay warning.

The lower discharge system uses a 200 lb (91 kg) cylinder assembly to flood the engine room bilges with FM-200

gas.

The FM-200 fire suppression alarm system contains two pressure operated switches located in AMS 2, five

amber strobe lights located in the engine room and AMS 2, two electric horns located in AMS 1 and in the engine

room, and an alarm bell installed in the engine room.

The technical characteristics of the FM-200 Fire Suppression System are contained in table 8.

Table 8. FM-200 Fire Suppression System Technical Characteristics

Item

Data

Manufacturer ....................................................................................................................... Kidde

Model .......................................................................................................................... B0716X002

Series ................................................................................................................... LT-128 specific

Type ....................................................................................................... CO2 time delay activated

Rated Capacity .................................................................................... 878 lb (398 kg) total agent

Voltage .............................................................................................................................. 115 Vac

24 Vdc

ENGINE ROOM WATER WASHDOWN SYSTEM (ERWWS)

The ERWWS is installed in the engine room and AMS 1 and is used in conjunction with the FM-200 fire suppres-

sion system. The ERWWS is a manually activated system that operates to quickly reduce a compartment's

temperature prior to discharge of FM-200 agent, minimizing the production of Hydrogen Fluoride (HF) gas. The

ERWWS is a mitigating washdown system that provides general overhead coverage to the protected spaces

using an overhead sprinkler grid. The sprinkler grid is piped directly to the existing fire main and uses raw water

from fire and general service pump 1. The ERWWS components are manufactured using stainless steel compo-

nents.

The technical characteristics of the ERWWS are contained in table 9.

Table 9. ERWWS Technical Characteristics

Item

Data

Manufacturer ..................................................................................................... CEB, Hythe, U.K.

Model .................................................................................................................... LT-128 specific

Rated Capacity .................................................................... 200 gallons (757 liters) per minute at

123 PSI (8.5 bar)

Flow Requirements .............................................................. 140 gallons (530 liters) per minute at

80 PSI (5.5 bar)

0002 00-25