Model H1301 Recovery and Recycling System
Installation, Operation and Maintenance Manual
Revision-L September, 2019
Page 37 of 105
V. System Operations and Controls (continued)
G. System Shutdown
NOTE: System Shutdown is most easily accomplished just after the machine stops
processing automatically and the empty source container is disconnected. If the source
container is not empty perform section-V.E: Disconnecting the Source Container
When it is not Empty; Before starting this procedure. Observe the Inlet Pressure
Gauge: the gauge must indicate zero pressure or a vacuum condition.
1. Depress and release the Stop Button on the front panel.
2. Do not close the valve on the receiving container until all the frost is melted from the
interconnecting plumbing or wait ½ hour before closing the receiving container valve.
This will allow the liquid trapped in the plumbing to vaporize into the head space of the
container. Then Close the receiving container valve.
WARNING: DO NOT close the receiving container valve until the plumbing warms.
Otherwise cold liquid trapped in the plumbing will quickly expand as it
warms and may rupture the outlet plumbing.
WARNING: The following depressurization procedure must be performed whenever
the machine is to be powered down to avoid cold liquid from being
trapped in a section of the machine plumbing or high pressure in the
process tank. The liquid will expand and the pressure will rise as the
machine warms and may result in damage to the machine or activation of
the process pressure relief valve which will cause loss of AGENT from the
process tank.
3. Observe the temperature display of the Process Temperature Controller and the
pressure display of the Pressure Controller.
4. If the temperature is below the alarm #2 set point of the Process Temperature
Controller(-60°F for Halon 1301 and FE25, -20°F for Halon 1211 or -10°F for FM200)
then complete the following purge procedure otherwise wait for the refrigeration section
to cool to the set point.
CAUTION: The Manual Inlet Valve of the machine must be in the closed position to
prevent air from entering the machine before completing the next step.
5. Place both the N2 Valve Switch and the Inlet Valve Switch to the ON position and vent
from the process tank until the pressure display is at least below 50 PSI. When the
pressure is below 50 psi place both the N2 Valve Switch and the Inlet Valve Switch to
the AUTO position.
CAUTION: Do not manually vent the process tank with the temperature warmer
than the alarm #2 setting this will result in excessive AGENT vapor loss.
6. Place the System Power Switch to the OFF position.
7. Install the valve caps back to any open ports of the machine.
NOTE: To conserve power disconnect main electrical power from the machine.
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