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PN 05605

 

04/2020

 

INTRODUCTION

 

THIS  MANUAL  IS  ATTACHED  TO  EVERY  NEW  EXTINGUISHER  SHIPPED  FROM  THE  FACTORY.  IT 

CONTAINS  VALUABLE  INFORMATION  WHICH  SHALL  BE  STUDIED  BY  EVERYONE  WHO  WILL  USE 

OR SERVICE THE EXTINGUISHER. THE MANUAL SHALL BE STORED IN A CONVENIENT LOCATION 

FOR EASY REFERENCE.

 

 

PREPARING YOUR NEW WHEELED EXTINGUISHER FOR USE

 

1. Remove all shipping straps, and wrappings from unit. Remove attached manual, and review for 

proper installation and use of your extinguisher. This wheeled extinguisher is filled at the factory.

 

2. Examine the extinguisher for shipping damage. If any damage is noted, contact delivering carrier 

and request inspection before removing from pallet.

 

3. Remove extinguisher from pallet.

 

4. Disconnect discharge hose assembly from agent cylinder. Make sure hose and nozzle is 

unobstructed. Verify moisture seal is undamaged and properly seated on the agent cylinder 

discharge fitting.

 

5. Reconnect the discharge hose to the agent cylinder and with the valve in the closed (forward) 

position, place it in the holder on the hose rack.  

 

6. Remove the agent cylinder fill cap, and examine the agent for proper type and condition. Replace 

the fill cap tightly.

 

7. Remove the nitrogen cylinder shipping cap. Save the cap as it must be installed whenever the 

cylinder is transported. Check the cylinder pressure. The gauge shall read approximately 2015 PSI 

(13.9 MPa) at 70*F (21*C) ambient temperature. The 

T

” 

handle valve shall have a pull pin and 

tamper seal Installed.

 

8. Remove and save the safety vent plug installed on outlet of T

-

handle gas cylinder valve. Connect 

the gas supply hose firmly into the nitrogen cylinder valve making sure hose is kink free.

 

9. Record the date the extinguisher is place into service on the inspection tag, and attach it to the 

extinguisher. Remove the 

preparing your new wheeled extinguisher for use

” 

instruction tag.

 

INSTALLATION

 

WARNING: DO NOT PLACE THIS EXTINGUISHER CLOSE TO A POTENTIAL FIRE.

 

Do not place this extinguisher close to a potential fire hazard. Amerex recommends location no less than a 50

-

foot distance from the hazard while leaving an unobstructed access. Avoid placing it in an extremely hot or 

cold place.  The  operational  temperature  range for  this  extinguisher  is 

-

65°F to  +120°F (

-

54°C to  +49°C). 

The extinguisher shall be adequately protected if temperatures outside of this range are anticipated. Keep the 

extinguisher clean and free from dirt, ice, chemicals, and any contaminants that may interfere with its proper 

operation. DO NOT FUNCTIONALLY TEST THIS FIRE EXTINGUISHER. (Testing or any use may cause the

 

extinguisher to gradually lose pressure over a period of time and make the extinguisher ineffective.)

 

Summary of Contents for 450

Page 1: ...D TITLE CT B002026 4 29 20 COVER SHEET DO NOT PRINT THIS PAGE FOR ACTUAL MANUAL INTERNAL USE ONLY NOTES 1 THIS COVERSHEET FOR INFORMATIONAL PURPOSES ONLY DO NOT PRINT THIS PAGE IN MANUAL 2 DESCRIPTION MANUAL OWNER S SERVICE FOR 45 46 47 WHEELED EXTINGUISHERS 3 ACTUAL PRINTED MATERIAL TO CONSIST OF ATTACHED 4 OVERALL SIZE OF PRINTED DOCUMENT PAGES 8 1 2 X 11 ON 20 LB PAPER 5 PRINTED MATERIAL TO MAT...

Page 2: ...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 ON...

Page 3: ... as it must be installed whenever the cylinder is transported Check the cylinder pressure The gauge shall read approximately 2015 PSI 13 9 MPa at 70 F 21 C ambient temperature The T handle valve shall have a pull pin and tamper seal Installed 8 Remove and save the safety vent plug installed on outlet of T handle gas cylinder valve Connect the gas supply hose firmly into the nitrogen cylinder valve...

Page 4: ...TO 60 SECONDS EFFECTIVE RANGE OF THE AGENT THROW 30 to 40 feet 9 TO 12 m HOSE LENGTH 50 feet 15 24 m SHUTDOWN 1 After making sure that the fire has been completely extinguished close the nozzle valve and close nitrogen cylinder valve push T handle to closed position Wheeled Extinguisher Tip over until it rests on both wheels and handle in this position much of the remaining chemical will stay in t...

Page 5: ...uisher 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 It will normally reveal if hydrostatic testing is required NOTE NFPA 10 spells out wheeled extinguisher maintenance procedures NFPA requires that regulators on wheeled extinguishers be checked annually to meet manufacturer s...

Page 6: ...GULATED WHEELED EXTINGUISHERS NOTE Steps R a thru R d apply to models with a Regulator These procedures shall be performed only by professionally trained and qualified service personnel thoroughly familiar with industry service procedures and safety precautions All extinguisher and service equipment components fittings and adapters must be in good condition and properly connected The only regulato...

Page 7: ...Operate the discharge valve lever to ensure proper operation and to clear the hose of any obstructions if hose is obstructed refer to Troubleshooting section of this manual f Close the nitrogen pressure source and slowly relieve remaining pressure by fully opening the discharge valve lever 9 Remove the agent cylinder fill cap and examine it closely for any signs of damage cracks or thread wear Cle...

Page 8: ...LEASE THE SAFETY VENT PLUG SHIPPED WITH THE EXTINGUISHER OR THE TEST KIT SAFETY VENT PLUG MUST BE INSTALLED TO PROTECT SERVICE PERSONNEL FROM A HIGH VELOCITY DISCHARGE IN CASE THE LEVER IS ACCIDENTALLY OPENED 14 Install a new Amerex Moisture Seal per instructions in the package Securely connect the discharge hose to the extinguisher When assembling the hose to the agent cylinder or nozzle to the h...

Page 9: ...ipping cap unscrew the wing nuts and remove the nitrogen cylinder from the extinguisher 5 Remove the 50 discharge hose from the storage rack and disconnect the hose from the agent cylinder fitting Blow out any dry chemical agent remaining in the hose Clean hose remove and discard the hose gasket from the female coupling 6 Remove remainder of ruptured moisture seal from the agent cylinder fitting R...

Page 10: ...inders Valve seat has leaked and has pressurized the agent cylinder Follow Recharge Procedure for restoring the extinguisher to service 3 Nitrogen pressure is too low Valve is closed Tamper seal is intact No pressure observed in the agent cylinder Leakage in the nitrogen valve at other than the valve seal Replace with a properly charged nitrogen cylinder 4 Shutoff nozzle does not move freely Disas...

Page 11: ...acing between side brackets and over the top bracket 2 The second loop is a REVERSE loop Notice that the hose passes behind the loop on this reverse loop If instructions are followed the hose will uncoil without kinks 3 The next loop is a regular hose in front loop Succeeding loops are alternated reverse front reverse etc for six full loops 4 Adjust the loops so that the nozzle fits into the nozzl...

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