Amerex 14795 - Manual (Page 12)

12
FINAL PRESSURIZATION OF HALOTRON I EXTINGUISHERS
with
Amerex Models 891 (80 lb.) and 892 (200 lb.) Halotron I Recharge System and
P/N 14538 Halotron I Recharge Kit
FINAL PRESSURIZATION PROCEDURE
1. Confirm that the hoses and components are clean and free of debris. Purge all
hoses with argon. Check for leaks and repair if necessary.
2. Start with all valves closed, connect the argon gas supply cylinder female quick
connect to the extinguisher fill adapter male quick connect.
3. Set the regulator at 0 psig (0 kPa) and open the argon cylinder valve.
4. Open the argon gas cylinder valve and set the regulator to the extinguisher operating
pressure. If the temperature range is not in the range of 70±5°F, consult the
pressure/temperature chart on page 5 for the correct temperature/pressure
adjustment. Verify the correct pressure on the pressure gauge and adjust as
needed.
5. Open the extinguisher valve (depress lever) and allow argon gas to transfer into the
extinguisher until the pressure equalizes.
6. Close the extinguisher valve (release lever) and agitate the extinguisher by
vigorously rocking it back and forth for 5 to 10 seconds.
Note: A large amount of argon will be absorbed into the Halotron. It is very
important that the extinguisher be rocked well to allow this absorption
..
7. Repeat steps 5 and 6 until the extinguisher pressure equalizes at the correct
operating pressure for the extinguisher. This will normally require 3 repetitions.
8. Close the argon supply valve and then open the argon supply hose vent (if installed)
to relieve the pressure in the hoses.
9. Disconnect the argon supply hose quick connect from the extinguisher adapter.
Remove the extinguisher adapter.
10. Install ring (safety) pin and lockwire seal.
11. Install nozzle or hose assembly and recharge tag.
12. Hold extinguisher for 24 to 48 hours, verify pressure and return to customer.
Caution: Never leave pressure in a hose (either argon supply or recharge) for
a prolonged period of time.
SHUT DOWN INSTRUCTIONS
After following the above procedure, there may be a small amount of Halotron I left in
the charging hose. if it will be more than 8 hours before another extinguisher will be
filled, Amerex recommends bleeding this Halotron I off into the atmosphere. The bleed
off process will prolong the life of your recharge equipment.
Follow this procedure to remove Halotron I captured in the charging hose:
1. Make sure that the Halotron I recharge cylinder is CLOSED.
2. Point the male quick connect plug for the argon supply away from yourself and
others and open the toggle valve. A small amount of Halotron I and argon may be
discharged. Close the toggle valve. The charging hose will be empty of Halotron I
and argon pressure.