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FM-200® FILL MANUAL
Revision B
Document # DOC180
Issued: August 16, 2010
Revised: April 2, 2012
Section 4 Fill Procedure
• Connect the cylinder ll hose of the ll station to the pump connection port of the cylinder ll
assembly.
• Open the the supply tank liquid valve.
• Set the direction of ow for the ll station towards the agent supply tank. Do this by setting the pump
selector knob to "recovery cylinder".
• Slowly open the manual agent ll valve and set the ll station pump to a low speed using the pump
control knob. If a pressure drop is not immediately observable on the ll pressure gauge, the cylinder
valve piston has not fully seated. Close the manual agent ll valve and repeat the process for seating the
cylinder valve piston using nitrogen.
• Once a pressure drop has been observed on the ll pressure gauge, continue pumping until the pressure
gauge indicates 0 psig. Close the manual agent ll valve, turn o the pump by setting the pump control
knob to o, and set the pump selector knob to the neutral or o position.
Once the cylinder valve piston has been seated and the cylinder ll assembly has been depressurized, all ll
component hardware must be removed as described below.
• Remove the valve closing line from the valve closing adapter. If the valve closing line quick-connect
tting is dicult to remove, this indicates the valve closing line is still under pressure. Ensure the ball
valve on the cylinder pressurization line and nitrogen supply valve on top of the nitrogen supply valve
are closed. Set the nitrogen regulator to 0 psi and then open the valve closing line ball valve. Pressure
will bleed out of the self-relieving nitrogen regulator. Once pressure has been bled to 0 psi, close the
valve closing line ball valve and remove the valve closing line from the valve closing adapter.
• Remove the valve closing adapter from the cylinder valve.
• Remove the cylinder ll hose from the pump connection port. If the cylinder ll hose quick-connect
tting is dicult to remove, this indicates the cylinder ll hose is still under pressure. Repeat the above
steps to depressurize the cylinder ll hose.
• Disconnect the cylinder ll assembly from the ll adapter.
• Remove the ll adapter and immediately install the anti-recoil safety device into the cylinder discharge
outlet.
To achieve a homogenous mixture of agent and nitrogen at a constant pressure of 360 psig at 70°F, the
agent contained within the cylinder assembly must absorb the nitrogen that has been added to the cylinder.
e cylinder assembly should be agitated to allow the agent to absorb the added nitrogen and then the
pressurization procedure repeated. Alternately, the cylinder assembly may be allowed to sit overnight before
repeating the pressurization procedure. is shall be continued until the intended cylinder pressure is reached
and a pressure drop is not observed.
Failure to ensure that the nitrogen has achieved maximum saturation into the agent at the intended cylinder
pressure will result in low pressure in the cylinder at the time of system installation.
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