Janus 3M Novec 1230 - 4.2.3 Overfill Retrieval Procedure

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REFILL MANUAL FOR 3M™ NOVEC™ 1230 FIRE PROTECTION FLUID
Revision E
Document # DOC181
Issued: May 31, 2011
Revised: June 23, 2020
Section 4 Fill Procedure
• Remove the valve closing adapter from the cylinder valve.
• Remove the cylinder fill hose from the pump connection port. If the cylinder fill hose quick-connect
fitting is difficult to remove, this indicates the cylinder fill hose is still under pressure. Repeat the above
steps to depressurize the cylinder fill hose.
• Disconnect the cylinder fill assembly from the fill adapter.
• Remove the fill adapter and immediately install the anti-recoil safety device into the cylinder discharge
outlet.
• Observe the weight displayed on the scale. Subtract from this weight the previously recorded empty
cylinder weight to determine the actual weight of the agent currently stored within the cylinder. e
actual weight of the agent should equal the intended fill weight. If the actual weight of the agent is
less than the intended fill weight, the agent fill procedure must be repeated. If the actual weight of the
agent is more than the intended fill weight, the overfill retrieval procedure must be followed as detailed
below.
• If the intended agent fill weight has been achieved, record the agent weight in the appropriate location on
the cylinder label and fill log. Follow the steps outlined in Section 4.3 to superpressurize the cylinder.
4.2.3 OverllRetrievalProcedure
To retrieve agent from a cylinder assembly due to an overfill, it will be necessary to open the cylinder valve.
Both a manual and electric valve actuator will be required for this purpose.
• Replace the anti-recoil safety device with the appropriate Series fill adapter for the cylinder assembly
being filled.
• Ensure that the fill pressure gauge is connected to the gauge connection port of the cylinder fill
assembly.
• Connect the cylinder connection port of the cylinder fill assembly to the male quick-connect fitting of
the fill adapter. Ensure the manual agent fill valve of the cylinder fill assembly is in the closed position
before proceeding.
• Ensure that the agent supply tank hose of the fill station is connected to the liquid fill line of the agent
supply tank.
• Connect the cylinder fill hose of the fill station to the pump connection port of the cylinder fill
assembly.
• Open the supply tank liquid line valve.
• Set the direction of flow for the fill station towards the agent supply tank. Do this by setting the pump
selector knob to "recovery cylinder".
• Open the manual agent fill valve and set the fill station pump to a low speed using the pump control
knob.