5-7September 2004 90-FM200M-000
FM-200
®
ECS Series Engineered Fire Suppression Systems
5-5.1 Cylinders Continuously in Service
Without Discharge
These cylinders are governed by NFPA 2001 regulations.
Cylinders in continuous service without discharge require
a complete external visual inspection every five years in
accordance with Compressed Gas Association Pamphlet
C-6, Section 3 except that the cylinders need not be emp-
tied or stamped while under pressure. Record date of in-
spection on record tag attached to each cylinder. Where
the visual inspection shows damage or corrosion, the cyl-
inder shall be emptied, retested and restamped in accor-
dance with DOT CFR Title 49, Section 173.34.
5-5.2 Discharged Cylinders of Charged Cylinders
that are Transported
These cylinders may come under NFPA 2001 requirements,
or, in the case of shipment of charged cylinders, DOT, fed-
eral or state regulations may apply. In either case, the cyl-
inders shall not be charged and shipped if more than five
years have elapsed from the date of the last test date
stamped on the cylinder. The cylinders shall be retested
and restamped in accordance with DOT Code of Federal
Regulations (CFR) Title 49, Section 173.34.
5-5.3 Retest
DOT 4BA and 4BW cylinders used exclusively in FM-200
services that are commercially free from corroding compo-
nents are required to be hydrostatically retested and
restamped every five years, in accordance with DOT CFR
Title 4, Paragraph 173.37(e), prior to recharge and ship-
ment. An alternate option is an external visual inspection
performed in lieu of the hydrostatic test at the time the pe-
riodic retest becomes due (this option is in accordance with
CFR 49, Paragraph 173.34[e] [13]). Table 5-2 highlights
the two options for retesting FM-200 cylinders.
Table 5-2. Retest Schedule
Retest Method
First Retest
Due
Subsequent
Retest Due
Special
Marking
Full hydrostatic test
including determination
of cylinder expansion
5 years 5 years
Retest Date
Month/Year
External visual
inspection per
Paragraph 173.34(e)
(13) and CGA Pamphlet
C-6, Section 3
5 years 5 years
Retest Date
Followed by
"E"
5-5.4 Flexible Hoses
In accordance with NFPA 2001, all system hoses shall be
examined annually for damage. If the visual examination
shows any deficiencies, the hose shall be replaced or tested.
5-6 SERVICE
5-6.1 Cleaning
Remove dirt from metallic parts using a lint-free cloth
moistened with dry cleaning solvent. Dry parts with a
clean, dry, lint-free cloth, or air blow dry. Wipe non-me-
tallic parts with a clean, dry lint-free cloth. Remove cor-
rosion with a crocus cloth.
5-6.2 Nozzle Service
Service nozzles after use as follows:
1. Clean the outside of the nozzles with a rag or soft brush.
2. Examine the discharge orifices for damage or block-
age. If the nozzles appear to be obstructed, unscrew
the nozzles and clean by immersing them in clean-
ing solvent. Dry thoroughly with lint-free cloth. Re-
place damaged nozzles. Nozzles must be replaced
with the same part number in the same location. See
Paragraph 4-2.3.5 for the correct nozzle placement
and orientation.
5-6.3 Repairs
Replace all damaged parts found during inspection. Re-
placement procedures for FM-200 cylinders are provided
below. Since replacement for other system components are
similar, refer to the installation drawings and FM-200 sys-
tem assembly drawings for guidance.
FM-200 cylinders must be recharged when the cylinder
pressure gauge indicates the pressure is below normal (360
PSIG at 70°F [25 bar gauge at 21°C]), immediately after
discharge, when a loss in weight is in excess of 5% of the
original charged net weight or when there is a loss of pres-
sure (adjusted for temperature) of more than 10%.
5-7 Removing an FM-200 Cylinder
Remove an FM-200 cylinder as follows:
WARNING
!
Do not disconnect the flexible discharge hose
or valve outlet adapter prior to removing
pressure and electric control heads from the
FM-200 cylinders. Before replacing an FM-200
cylinder in a hazard area group, ensure that the
pilot line is completely vented of all pressure.
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