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All fire extinguishers should be installed, inspected and maintained in
accordance with the National Fire Protection Association standard titled
"Portable Fire Extinguishers", NFPA-10 and the requirements of local
authorities having jurisdiction.
When maintenance is indicated, it should be performed by trained
persons having proper equipment.
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.
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 insure
proper maintenance – USE OF SUBSTITUTE PARTS RELEASES
AMEREX OF ITS WARRANTY OBLIGATIONS.
machined surfaces and threads that are manufactured to exacting
tolerances. O-rings, hoses, nozzles, and all metal parts meet precise
specifications and are subjected to multiple in-house inspections and
tests for acceptability. There are substitute parts available that may be
incorrectly labeled as UL component parts, some are advertised as
Amerex type. None of these meet UL requirements and all of them voids
the Amerex extinguisher warranty and UL listing.
SUBSTITUTE.
RECHARGE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE
REFERENCES IN THIS MANUAL:
NFPA-10 Portable Fire Extinguishers
CGA C-1 Methods for Hydrostatic Testing of
Compressed Gas Cylinders
CGA C-6 Standard for Visual Inspection of
Compressed Gas Cylinders
AMEREX CORPORATION – P.O. BOX 81 – TRUSSVILLE, ALABAMA 35173-0081
Phone: 205/655-3271
e-mail:
sales@amerex-fire.com
Printed in U.S.A.
INSPECTION, MAINTENANCE AND
RECHARGE SERVICE MANUAL
P/N 05603
Fire extinguishers are pressure
Fax: 800/654-5980
Web Page:
Amerex strongly
Amerex parts have
AVAILABLE FROM:
National Fire Protection Association
1 Batterymarch Park, P.O, Box 9101
Quincy, MA 02269-9101
Compressed Gas Association, Inc.
th
4221 Walney Road, 5
Floor
Chantilly, VA 20151-2923
http://www.amerex-fire.com
OM05603C Rev. 3/11
DO NOT

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Summary of Contents for Amerex 322

  • Page 1 There are substitute parts available that may be incorrectly labeled as UL component parts, some are advertised as Amerex type. None of these meet UL requirements and all of them voids the Amerex extinguisher warranty and UL listing.
  • Page 2: Five Year Limited Warranty

    OF FIRE EXTINGUISHERS BY PUBLISHING THIS MANUAL. FIVE YEAR LIMITED WARRANTY Amerex warrants its fire extinguishers to be free from defects in material and workmanship for a period of five (5) years from the date of purchase. During the warranty period, any such defects will be repaired or the defective extinguisher replaced if only factory replacement parts and recommended service equipment have been used to service the extinguisher.
  • Page 3: Operation

    OPERATION NOTE: Persons expected to use this extinguisher should be trained in initiating its operation and in the proper fire fighting technique. Familiarize all personnel with this information before an emergency occurs. WARNING: Carbon Dioxide extinguishes fires by diluting the surrounding atmosphere with inert gas keeping the oxygen level below the percentage required for combustion.
  • Page 4: Maintenance

    CGA C-1 and C-6 and NFPA 10. Inspect the extinguisher for damaged, missing or substitute parts. Only factory replacement parts are approved for use on Amerex fire extinguishers. Weigh the extinguisher and compare with weight printed in the "Maintenance" section on the nameplate (label).
  • Page 5 Inspect the 10, 15 & 20 lb elbow and diffusion tip for blockage or damage. The Amerex 5 lb CO2 diffuser is built into the discharge tube. Check elbow and discharge tube for blockage or damage.
  • Page 6: Recharging Procedure

    Check the extinguisher nameplate (label) for the proper amount of CO2 to be pumped into the extinguisher. Install the proper Amerex recharge adapter. Adapter must fit over diffuser tip on 5 lb Discharge Tube and elbow on 10, 15 & 20 lb without blocking diffuser holes Do not remove 5 lb discharge tube or 10, 15, 20 lb elbow.
  • Page 7: Troubleshooting Guide

    To depressurize – hold the extinguisher in a vertical position and slowly squeeze the discharge handle. Amerex CO2 valve bodies and aluminum cylinders are 1-1/8"-12 UNF straight threads. When reinstalling the valve assembly, the cylinder must be placed in a suitable securing vice and valve installed to 100 ft-lbs of torque using a 16"...
  • Page 8: Parts List

    PARTS LIST 5 lb. Carbon Dioxide Extinguisher Model 322MN Part Item Description Valve Assembly (does not 03090 include elbow or downtube 04000 Safety Disc, Gasket & Nut 00160 Ring Pin, Stainless Steel 00532 Chain (Nylon) for Ring Pin 01387 Lockwire Seal (Yellow) 07762 Lever &...
  • Page 9 PARTS LIST 10-15-20 lb. Carbon Dioxide Extinguisher Models Part Item Description Valve Assembly (does not 03090 include elbow or downtube 04000 Safety Disc, Gasket & Nut 00160 Ring Pin, Stainless Steel 00532 Chain (Nylon) for Ring Pin 01387 Lockwire Seal (Yellow) 07762 Lever &...

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