PN 05605
04/2020
OWNER
’
S SERVICE MANUAL
INSTALLATION, OPERATING & SERVICING INSTRUCTIONS
MANUAL PN 05605
125/150 LB. NITROGEN CYLINDER DRY CHEMICAL EXTINGUISHERS
MODELS 450,451,452,467,468,469,470,471,472
All fire extinguishers shall 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 shall 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 insure proper maintenance –
USE OF
SUBSTITUTE PARTS RELEASES AMEREX OF ITS WARRANTY OBLIGATIONS. Amerex parts have
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 void the
Amerex extinguisher warranty and UL listing. DO NOT SUBSTITUTE.
RECHARGE FIRE EXTINGUISHERS IMMEDIATELY AFTER ANY USE
AMEREX CORPORATION DOES NOT SERVICE, MAINTAIN, OR RECHARGE FIRE EXTINGUISHERS.
THIS MANUAL IS PUBLISHED AS A GUIDE TO ASSIST QUALIFIED SERVICE PERSONNEL IN THE
INSPECTION, MAINTENANCE, AND RECHARGE 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, MAINTENANCE, OR RECHARGE OF FIRE
EXTINGUISHERS BY PUBLISHING THIS MANUAL.
AMEREX CORPORATION –
P.O. BOX 81 –
TRUSSVILLE, ALABAMA 35173
-
0081
Phone: 205/655
-
3271 Fax: 800/654
-
5980
e
-
mail:
REFERENCES IN THIS MAUNUAL:
NFPA 10
Portable Fire Extinguishers
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CGA C
-
1
Methods for Pressure Testing Compressed Gas
Cylinders
CGA C
-
6
Standard for Visual Inspection of Steel
Compressed Gas Cylinders.
National Fire Code of Canada
AVAILABLE FROM:
National Fire Protection Association, 1 Batterymarch Park,
Quincy, MA 02169
-
7471
Compressed Gas Association, 14501 George Carter Way,
Chantilly, VA 20151
-
2923
Compressed Gas Association, 14501 George Carter Way,
Chantilly, VA 20151
-
2923
National Research Council Canada, 1200 Montreal Road,
Building M
-
58 Ottawa, ON K1A 0R6 Canada