Amerex 16672 - Manual (Page 8)

8
RECHARGING PROCEDURE
Note: The following procedure is for an EMPTY Halotron l extinguisher. If you are recharg-
ing an extinguisher, which has been partially discharged (with agent remaining in the cylin-
der) or has been recharged and the pressure leaked, follow the instructions contained in the
Recharging Instructions, which is packaged with the Amerex Recharge Kit (P/N 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 should be fully discharged
and empty.
4. Connect the extinguisher to a Halotron l supply cylinder using the Amerex P/N 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 extin-
guisher to the agent fill weight noted on the nameplate USING ONLY CLEAN UNCON-
TAMINATED 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 exteri-
or. 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 us-
ing the Halogen leak detector it is recommended that the extinguisher be set aside
a minimum of 24 hours after recharging, then leak tested.
8. Install ring pin and new tamper seal.
9. Install hose assembly, with shut-off nozzle attached, to the extinguisher cylinder discharge
valve. Tighten hose coupling ¼ turn after contact with hose gasket. Coil hose onto the hose
rack and install nozzle into mount.
10. Weigh extinguisher to confirm that the total weight is within the tolerances indicated in the
maintenance section on the extinguisher nameplate.
11. Record recharge date and attach new recharge tag in accordance with the requirements of the
"Authority Having Jurisdiction".