background image

 

PN 16672

 

04/2020

 

b.

 

Before attempting to recharge be sure this extinguisher is completely depressurized by slowly and 
carefully depressing the operating lever and discharging the extinguisher into a proper collection 
area.

 

c.

 

Use a REGULATED pressurizing source of ultra high purity ARGON ONLY. Set the regulator to 
no more than 25 PSI higher than the extinguisher gauge operating pressure.

 

d.

 

Check  and calibrate regulator gauge  at frequent  intervals. The  regulator  gauge  shall  be  used to 
determine  when the  intended  charging  pressure has  been  reached.  Do  not  use the  extinguisher 
gauge for this purpose.

 

e.

 

Never leave an extinguisher connected to a regulator of a high pressure source for an extended 
period of time. A defective regulator could cause the cylinder to rupture due to excessive pressure.

 

RECHARGING PROCEDURE

 

NOTE

:

 

The  following  procedure  is  for  an  EMPTY  Halotron  l  extinguisher.  If  you  are  recharging  an 
extinguisher,  which  has  been  partially  discharged  (with  agent  remaining  in  the  cylinder)  or  has 
been  recharged  and  the  pressure  leaked,  follow  the  instructions  contained  in  the  Recharging 
Instructions, which is packaged with the Amerex Recharge Kit (PN 14538).

 

1.

 

Perform the Complete Maintenance steps 1 through 7.

 

2.

 

Install the proper Amerex Recharge Adapter and draw a vacuum of 

27” 

of mercury (adjusted for altitude 

variations) [see your vacuum pump manual for detailed instructions]. 

 

3.

 

Stand the extinguisher upright on a scale of sufficient size and capacity (200 lbs. minimum). Tare weight 
extinguisher or record empty weight. The extinguisher shall be fully discharged and empty.

 

4.

 

Connect the extinguisher to a Halotron l supply cylinder using the Amerex PN 14538 Halotron l Recharge 
Kit.

 

NOTE:

 The Halotron l supply cylinder must be pressurized to approximately 

 

100  psi  with  ARGON  to 

properly charge the extinguisher.

 

5.

 

Open the agent cylinder discharge valve by pulling 90º toward the hose rack and fill extinguisher to the 
agent  fill  weight  noted  on  the  nameplate    USING    ONLY    CLEAN    UNCONTAMINATED  HALOTRON  l 
AGENT. [see detailed instructions on your recharging system]

 

CAUTION:

 

AVOID  LIQUID  HALOTRON  L  CONTACT  WITH  THE  EXTERNAL  EXTINGUISHER 

CYLINDER.

 

6.

 

Pressurize to the extinguisher operating pressure with ARGON only. Repeatedly rock the extinguisher to 
thoroughly  mix  the  ARGON  pressurizing  gas  until  proper  pressure  is  reached.  Add  additional  Argon  as 
necessary until the pressure stabilizes. 

 

7.

 

Check extinguisher for leaks at the valve orifice, around the collar seal, and gauge using a Halogen Leak 
Detector. The alternate method is to apply leak detecting fluid or a solution of soapy water to these areas. 
Thoroughly remove all leak detection fluid residue using dry nitrogen to blow all liquid residue out of the 
valve and wipe the extinguisher to dry the exterior. DO NOT LEAVE ANY LIQUID INSIDE THE VALVE 
BODY. Remove the recharge adapter.

 

CAUTION: If you use a Halogen type leak detector:  A residual amount of Halotron l will remain in 

the valve body until the liquid evaporates. To properly leak test using the Halogen leak 
detector it is recommended that the extinguisher be set aside a minimum of 24 hours 
after recharging, then leak tested.

 

Summary of Contents for B673

Page 1: ...TINGUISHERS MODELS B673 B674 B675 AMEREX CORPORATION P O BOX 81 TRUSSVILLE ALABAMA 35173 0081 Phone 205 655 3271 Fax 800 654 5980 e mail sales amerex fire com Web Page http www amerex fire com REFERENCES IN THIS MAUNUAL NFPA 10 Portable Fire Extinguishers JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ CGA C 1 Methods for Pressure Testing Compressed Gas Cylinders CGA C 6 Standard for Visual Inspectio...

Page 2: ...alve and the nozzle connection to the hose are tight 4 Check to insure that the nozzle shut off lever is in the CLOSED position The pull pin shall be installed and the tamper seal intact 5 Visually inspect the pressure gauge The pressure gauge shall be in the green zone Slight pressure variances in the gauge reading may be found if the extinguisher has been subjected to extremes of heat or cold Hi...

Page 3: ...from the storage rack 4 Stand back 30 feet from the fire and aim just in front of the base of the flames nearest you 5 Hold hose and nozzle firmly and be prepared for a discharge recoil Open nozzle by pulling lever toward you Slowly sweep side to side extending the discharge beyond the edges of the fire Progressively follow up until the fire is extinguished Work the fire away from you while being ...

Page 4: ...to prevent its operation PERIODIC INSPECTION PROCEDURES monthly or more often if circumstances dictate NFPA 10 Periodic inspection of fire extinguishers shall include a check of at least the following items 1 Located in designated place 2 No obstruction to access or visibility 3 Operating instructions on nameplate legible and facing outward 4 Tamper seals not broken or missing 5 Determine fullness...

Page 5: ...he operation is impeded replace ball valve assembly Make sure that the nozzle tip is clear and unobstructed WARNING ALWAYS OPEN THE SHUTOFF NOZZLE HANDLE SLOWLY BE PREPARED FOR A POSSIBLE DISCHARGE AND NOZZLE RECOIL 8 After making sure that there is no residual pressure in the discharge hose disconnect it from the cylinder operating valve Blow air through the hose and nozzle assembly to insure tha...

Page 6: ...nt and pressure remove valve assembly and disassemble by removing downtube spring and valve stem assembly Discard valve stem assembly and collar o ring NOTE Keep cylinder opening covered while devalved to minimize interior corrosion 4 Thoroughly clean all parts of the disassembled valve with a soft bristle brush or soft cloth Blow the valve out with dry nitrogen 5 Install a new valve stem assembly...

Page 7: ... minimum Tare weight extinguisher or record empty weight The extinguisher shall be fully discharged and empty 4 Connect the extinguisher to a Halotron l supply cylinder using the Amerex PN 14538 Halotron l Recharge Kit NOTE The Halotron l supply cylinder must be pressurized to approximately 100 psi with ARGON to properly charge the extinguisher 5 Open the agent cylinder discharge valve by pulling ...

Page 8: ...ures can cause high gauge readings and low temperatures low readings When in doubt condition the extinguisher to 70ºF 21ºC for several hours to obtain more accurate pressure gauge readings 2 Leak through valve Remove valve assembly downtube spring and valve stem assem bly Install new valve stem GREEN SEAL assembly Check valve seat for scratches or foreign matter 3 Leak at collar o ring Remove valv...

Reviews:

Related manuals for B673