Amerex HALOTRON BRX 337 User manual

P/N 27192 4/2021
All fire extinguishers should be installed, inspected and maintained in accordance with the National Fire
Protection Association standard titled "Portable Fire Extinguishers", NFPA-10 or the National Fire Code of
Canada and the requirements of local authorities having jurisdiction.
When maintenance is indicated, it should be performed by trained persons having proper equipment. Fire
extinguishers are pressure vessels and must be treated with respect and handled with care. They are
mechanical devices and require periodic maintenance to be sure that they are ready to operate properly and
safely. Amerex strongly recommends that the maintenance of portable fire extinguishers be done by a trained
professional – your local authorized Amerex Distributor.
Amerex Corporation makes original factory parts available to ensure proper maintenance – USE OF
SUBSTITUTE PARTS RELEASES AMEREX OF ITS WARRANTY OBLIGATIONS. Amerex parts have
machined surfaces and threads which are manufactured to exacting tolerances. All parts meet precise
specifications and are subjected to multiple in-house inspections and tests for acceptability. There are
substitute parts available which are incorrectly labeled as U/L component parts, some are advertised as
Amerex type. None of these meet U/L requirements. Use of substitute parts voids the Amerex extinguisher
warranty and U/L listing. DO NOT SUBSTITUTE.
OWNER’S MAINTENANCE MANUAL
INSTALLATION, OPERATING & MAINTENANCE INSTRUCTIONS
NO. 27192
HALOTRON BRX® PORTABLE EXTINGUISHERS
MODELS 337, 347, 349 AND 351
AMEREX CORPORATION DOES NOT SERVICE OR MAINTAIN FIRE EXTINGUISHERS. THIS MANUAL
IS PUBLISHED AS A GUIDE TO ASSIST QUALIFIED SERVICE PERSONNEL IN THE INSPECTION AND
MAINTENANCE OF AMEREX FIRE EXTINGUISHERS ONLY. NO INSTRUCTION MANUAL CAN
ANTICIPATE ALL POSSIBLE MALFUNCTIONS THAT MAY BE ENCOUNTERED IN THE SERVICE OF
FIRE EXTINGUISHERS. DUE TO THE POSSIBILITY THAT PRIOR SERVICE PERFORMED ON THIS
EQUIPMENT MAY HAVE BEEN IMPROPERLY DONE, IT IS EXTREMELY IMPORTANT THAT ALL
WARNINGS, CAUTIONS AND NOTES IN THIS MANUAL BE CAREFULLY OBSERVED. FAILURE TO
HEED THESE INSTRUCTIONS COULD RESULT IN SERIOUS INJURY. AMEREX ASSUMES NO
LIABILITY FOR SERVICE OR MAINTENANCE OF FIRE EXTINGUISHERS BY PUBLISHING THIS
MANUAL
REMOVE FROM SERVICE AND REPLACE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE.
AVAILABLE FROM:
National Research Council Canada, 1200 Montreal Road,
Building M-58 Ottawa, ON K1A 0R6 Canada
National Fire Protection Association, 1 Batterymarch Park,
Quincy, MA 02169-7471
Compressed Gas Association, 14501 George Carter Way,
Chantilly, VA 20151-2923
REFERENCES IN THIS MANUAL:
NFPA-10 Portable Fire Extinguishers
CGA C-6 Standard for Visual Inspection of
Compressed Gas Cylinders
CGA C-6.3 Standard for Visual Inspection of
Low Pressure Aluminum Alloy Compressed
Gas Cylinders

P/N 27192 4/2021
INTRODUCTION
This manual covers specific instructions for Amerex Halotron BrX® hand portable extinguishers. Special
maintenance instructions contained in this manual apply to these extinguishers only. Halotron BrX® “Clean
Agent” extinguishers are designed for Class A, B and C hazards formerly protected with Halon 1211
extinguishers. They contain stabilized bromotrifluoropropene (BTP), which is designated for streaming fire
extinguisher applications. Halotron BrX® is listed in the U.S. Environmental Protection Agency (EPA)
“Significant New Alternative Policy” (SNAP) as acceptable for aerospace applications. Halotron BrX® has
acceptable toxicity and cardiac sensitization levels for use in occupied spaces when used according to the
instructions on the nameplate and rules of the EPA SNAP Program and EPA SNUR rules.
PHYSICAL PROPERTIES OF HALOTRON BrX®
Primary Component Bromotrifluoropropene (BTP)
Boiling Point 93°F [34°C]
Liquid Density 103 lb./ft³ (1.65 kg / liter)
Gas Density 0.45 lb./ft³ (7.21 kg / m³)
Molecular Weight 174.9
Physical State Volatile Liquid
Vapor Pressure @ 77ºF [25ºC] 11.9 psi [82 kPa]
INSTALLATION
THIS MANUAL SHOULD BE CAREFULLY STUDIED BY ALL WHO MIGHT USE OR MAINTAIN THE
EXTINGUISHER. STORE IT IN A CONVENIENT PLACE FOR EASY REFERENCE.
Your layout and particular hazards dictate the placement of fire extinguishers. NFPA-10 recommends that
hand portable extinguishers with a gross weight less than 40 lbs. be hung with the top of the extinguisher
not more than 5 ft. (1.53 m) above the floor. Extinguishers having a gross weight greater than 40 lbs.
(18.14 kg) should be installed so that the top of the extinguisher is not more than 3 ½ ft. (1.07 m) above
the floor. All extinguishers should be in an accessible clean, dry location and preferably near an exit. Never
install the extinguisher in a location where a potential hazard would prevent easy access.
The operational temperature range is -40°F to +120°F (-40°C to +60°C). The extinguisher must be
protected if temperatures outside of these ranges are anticipated. Never throw an extinguisher into a fire
because rapid heat buildup could cause pressure expansion and exceed the limitations of the cylinder.
OPERATION
WARNING: PERSONS EXPECTED TO USE THIS EXTINGUISHER SHOULD BE MADE AWARE OF
THE CONFINED SPACE LIMITATIONS AND TRAINED IN INITIATING ITS OPERATION
AND PROPER FIRE FIGHTING TECHNIQUE. THE CONCENTRATED AGENT CAN
PRODUCE TOXIC BY-PRODUCTS. AVOID INHALATION OF THESE MATERIALS BY
EVACUATING THE CONFINED SPACE. DO NOT USE IN CONFINED SPACES SMALLER
THAN THE MINIMUM STATED ON THE EXTINGUISHER LABEL.
1. Remove extinguisher from wall hanger or vehicle bracket.
2. Hold extinguisher upright, twist and pull ring pin.
3. Start back a minimum of 8 feet from the fire. Aim the nozzle at the base of the fire nearest you.
4. Keeping the extinguisher upright, squeeze the lever to discharge. Sweep the agent stream from side to
side.
5. Evacuate and ventilate the area immediately after extinguishing the fire. The fumes and smoke from any
fire may be hazardous and can be deadly.

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WARNING: SYMPTOMS OF OVER-EXPOSURE TO PURE Halotron BrX® MAY CAUSE CENTRAL
NERVOUS SYSTEM EFFECTS SUCH AS DIZZINESS, DROWSINESS, ANESTHESIA, OR
UNCONSCIOUSNESS. PERSONS SUFFERING FROM OVER-EXPOSURE SHOULD BE
IMMEDIATELY REMOVED TO AN AREA WITH FRESH AIR. APPLY ARTIFICAL
RESPIRATION IF NECESSARY. CONTACT A PHYSICIAN.
INSPECTING THE EXTINGUISHER
Extinguishers should be INSPECTED when initially placed in service and at regular intervals (monthly or
more often if circumstances dictate) to ensure they are ready for use..
INSPECTION [NFPA-10] is a "quick check" that a fire extinguisher is available and is in proper operating
condition. It is intended to give reasonable assurance that the fire extinguisher is fully charged.
PERIODIC INSPECTION PROCEDURES
(monthly or more often if circumstances dictate)
This extinguisher should be inspected at regular intervals (monthly or more often if circumstances dictate)
to ensure that it is ready for use.
A "quick check" should be made of the extinguisher for the following:
1. Located in designated place.
2. No obstruction to access or visibility.
3. Operating instructions on nameplate legible and facing outward.
4. Tamper seal not broken or missing.
5. Determine fullness by weighing or "hefting".
6. Examination for obvious physical damage, corrosion, leakage, or clogged nozzle.
7. Pressure gauge reading in the operable range.
MAINTENANCE
Extinguishers should be subjected to maintenance at intervals of not more than one year or when
specifically indicated by an inspection. Maintenance procedures include a thorough examination of the
basic elements of a fire extinguisher:
1. Mechanical parts
2. Expelling means - inspect nozzle for clear passage.
NOTE: Stored pressure Halotron BrX® extinguishers do not require an internal examination of the
cylinder or examination of the agent during annual maintenance, but shall receive a thorough
external examination.
Maintenance [NFPA 10] Maintenance is a thorough examination of the fire extinguisher. It is intended to
give maximum assurance that a fire extinguisher will operate effectively and safely. It includes a thorough
examination for physical damage or condition to prevent its operation and any necessary repair or
replacement.
MAINTENANCE PROCEDURE
1. Clean extinguisher to remove dirt, grease or foreign material. Check to make sure that the instruction
nameplate and UL manifest are securely fastened and legible. Inspect the cylinder for corrosion,
abrasion, and dents. If any of these conditions are found and you doubt the integrity of the cylinder,
replace the extinguisher.
NOTE: When cleaning, avoid use of solvents around the pressure gauge. Solvents can potentially
damage the plastic gauge face.
2. Inspect the extinguisher for damaged, missing or substitute parts. Only factory replacement parts are
approved for use on Amerex fire extinguishers.
3. Weigh extinguisher and compare with weight printed in the Maintenance section on the nameplate.

P/N 27192 4/2021
4. Check the date of manufacture on the extinguisher nameplate. Extinguisher must be replaced at 12
year intervals as determined by the date of manufacture on the UL nameplate.
5. Visually inspect the pressure gauge:
a) If bent, damaged or improper gauge, replace extinguisher.
b) If pressure is low or high and temperature/pressure relationship has been ruled out:
1. Low pressure – check for leaks. Contact Amerex if under warranty; otherwise remove
and replace extinguisher.
2. High pressure (over pressurized or over charged) — Contact Amerex if under warranty;
otherwise replace extinguisher.
6. Remove nozzle or hose and nozzle assembly and inspect for damage. Blow air through nozzle or hose
and nozzle to ensure that passage is clear from foreign material. Replace component parts with proper
Amerex parts as necessary.
7. Check ring pin for freedom of movement by breaking the seal and removing the pin. Replace the ring
pin if bent or if removal is difficult.
8. Inspect discharge lever for dirt or corrosion that might impair freedom of movement. Inspect carrying
handle for proper installation.
9. Inspect valve assembly for corrosion or damage to hose thread connection.
10. Install nozzle or hose and nozzle assembly.
11. Install new tamper seal and record service data on the extinguisher inspection tag.
12. Reinstall the extinguisher in the wall or vehicle bracket making sure that it fits the bracket properly –
replace the bracket if necessary.
WARNING
1. The Halotron BrX® clean agent is comprised of 2-bromo-3,3,3-trifluoropropene (also known as BTP, 2-
BTP, or HBFO-1233xfB) with proprietary stabilizers. The stabilized agent has a 12-year shelf life after
it is transferred into an extinguisher.
TROUBLE SHOOTING GUIDE
PROBLEM CORRECTIVE ACTION
1. Leak at collar O-ring Contact Amerex if under warranty; otherwise remove and replace
extinguisher.
2. Leak through valve Contact Amerex if under warranty; otherwise remove and replace
extinguisher.
3. Defective gauge Contact Amerex if under warranty; otherwise remove and replace
extinguisher.
4. Leak in cylinder Contact Amerex if under warranty; otherwise remove and replace
extinguisher.

P/N 27192 4/2021
PARTS LIST
for
1.92 lb. Halotron BrX®
Extinguisher Model 337
ITEM # PART # DESCRIPTION
101387-PSEAL TAMPER (REPL YELLOW) SALES
201532-PORING NOZ HOSE END SALES
316354-PPULL PIN & CHAIN ASY SM SS SALES
427293-PBKT ASY 899 BTP RD SALES
527440 NOZ ANOD .113 BRX

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PARTS LIST
for
3.75 lb. Halotron BrX®
Extinguisher Model 347
ITEM # PART # DESCRIPTION
101387-PSEAL TAMPER (REPL YELLOW) SALES
201532-PORING NOZ HOSE END SALES
316354-PPULL PIN & CHAIN ASY SM SS SALES
425261-PBKT ASY 898 BRX RD SALES
525627 NOZ .161 ANOD AL BRX

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PARTS LIST
for
3.75 lb. Halotron BrX®
Extinguisher Model 349
ITEM # PART # DESCRIPTION
101387-PSEAL TAMPER (REPL YELLOW) SALES
201532-PORING NOZ HOSE END SALES
315747-PSTRAP ASY BK 3/8”X5” SALES
416354-P PULL PIN & CHAIN ASY SM SS SALES
525261-PBKT ASY 898 BRX RD SALES
627189-PHOSE ASY 3/8 AL .189 BRX SALES

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PARTS LIST
for
12.5 lb. Halotron BrX®
Extinguisher Model 351
ITEM # PART # DESCRIPTION
101387-PSEAL YAMPER (REPL YELLOW) SALES
205525-PBKT WALL 820 RD AL 10 SALES
306978-PORING BR VLV HOSE SALES
412932 BKT ASY 809 BK 5” VEH
513888-PPULL PIN & CHAIN ASY LG SS SALES
614778-PSTRAP & INSERT ASY BK 1/2 SALES
727289-PHOSE ASY AL 1/2” .423 BRX SALES