Chapter 5: Using The Ductless Enclosure
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Status Area
The LCD displays the Paramount Ductless Enclosure’s condition during
operation such as the filter types, face velocity, and bar graph to display the
remaining filter life in hours. This line can display any of the following
messages:
Filters OK
Both filters are operating properly. (No audible alarm)
Check Filter-t
The filter check life timer has expired as programmed and the filters
should be checked with colormetric detector tubes or other
instrumentation. (Intermittent audible alarm)
Replace Filter-s or -t
The filter needs to be replaced immediately as either the Safety-First
Vapor Sensor (-s) has detected filter breakthrough or the filter final life
timer (-t) has expired. (Continuous audible alarm; can be muted for 5
minutes)
Note: The early warning signal that occurs with 5-10% remaining filter
life is an intermittent audible alarm along with “Replace Filter-s.”
Check Airflow
The airflow patterns in the ductless enclosure have changed, resulting in
a sudden change in the motor speed. This is most likely due to a
blockage of the exhaust filter outlet, complete blockage of the filters,
filter saturation, or motorized impeller failure. (Continuous audible
alarm; can be muted for 5 minutes)
Operating the Pivoting Sash
You can open or close the sash by pivoting the sash. A latch or gas spring
will retain the sash in the open position for loading only. Always work with
the sash in the closed position.
Starting the Ductless Enclosure
1.
To start the ductless enclosure, press the “Blower” button.
2.
To turn the fluorescent light on, press the “Light” button.
Note:
The sash must be completely closed before performing work in the
enclosure.
