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FM-200® FILL MANUAL
Revision B
Document # DOC180
Issued: August 16, 2010
Revised: April 2, 2012
Section 4 Fill Procedure
• Ensure that the ll pressure gauge is connected to the gauge connection port of the cylinder ll
assembly.
• Connect the cylinder connection port of the cylinder ll assembly to the male quick-connect tting of
the ll adapter. Ensure the manual agent ll valve of the cylinder ll assembly is in the closed position
before proceeding.
• After ensuring that the valve set line and cylinder pressurization line valves of the nitrogen regulator/
hose assembly are closed, open the nitrogen supply valve and set the regulator to no higher than 20 psig
above the intended pressure at the ambient temperature (e.g. for the intended cylinder pressure of 360
psig at 70°F, set regulator to 380 psig).
• Connect the female quick-connect tting at the end of the cylinder pressurization line to the nitrogen
pressurization port of the cylinder ll assembly.
• Open the cylinder pressurization line valve slowly. Allow nitrogen to pressurize the cylinder assembly
until the ow of nitrogen ceases. is can be noted by the pressure displayed on ll pressure gauge
ceasing to increase and/or by a noticeable dierence in sound produced from the nitrogen regulator.
• Close the cylinder pressurization line valve.
• Close the nitrogen supply valve on the nitrogen supply cylinder.
Once nitrogen has been added to the cylinder assembly, the cylinder valve must be closed by seating the
cylinder valve piston with nitrogen.
• After ensuring that the valve set line and cylinder pressurization line valves of the nitrogen regulator/
hose assembly are closed, open the nitrogen supply valve and set the regulator to no higher than 400
psig at 70°F.
• Install the valve closing adapter hand tight to the valve actuation connection located on the top of the
cylinder valve.
• Connect the valve closing line of the nitrogen regulator/hose assembly to the valve closing adapter.
• Open the ball valve of the valve closing line for no more than 1 or 2 seconds and then close the ball
valve. A slight popping noise should be heard as the piston of the cylinder valve is seated, closing the
cylinder valve.
• Set the nitrogen regulator to 0 psi. Pressure within the valve closing line will be relieved through the
regulator. Close the nitrogen supply valve on the nitrogen supply cylinder.
It must be veried that the cylinder valve piston has fully seated before any of the ll components are
disconnected. Pressure must also be depleted from within the cylinder ll assembly before disconnecting
the cylinder ll hose. e following method shall be used to achieve both tasks.
• Ensure the agent supply tank hose of the ll station is connected to the liquid ll line of the agent
supply tank.
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