Filter
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28 American Dryer Corp. 113247-3
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Filter Information ______________________
The filter housing is where the pre-filters and HEPA filters are
contained. On the upper most rails is where the pre-filters
are installed and on the rails below that, the HEPA filters are
installed. The ADH-120 requires 2 of each pre-filters and
HEPA filters. (All filters must be supplied by customer.)
Filter
Description
HWDCFM
Operating
Temp
Pre-Filter
(Qty: 2)
24” 24” 2” 1100 300° F
60.96 cm 60.96 cm 5.08 cm 31.15 cmm 150° C
HEPA/ULPA
(Qty: 2)
24” 24” 11-1/2” * 1100 300° F
60.96 cm 60.96 cm 29.21 cm 31.15 cmm 150° C
HEPA Pressure Gauge/Alarm Addendum
This HEPA dryer is equipped with a Differential Pressure
Gauge/Alarm Switch.
When the dryer is in operation, this device displays the
differential pressure across the HEPA filters, and sets off an
alarm if the “Preset Pressure Setting” has been exceeded.
Once the alarm sounds it will remain “ON” until the differential
pressure is below its preset value, and the “Alarm Reset”
button is pressed.
Note
All filter manufacturers supply technical data,
which will permit full utilization of their filters. This
data will include the recommended resistance, in in W.C.,
at which point the filter should be replaced or serviced.
Refer to this data to determine the “alarm” value best for
your application.
For HEPA dryers built after July 2001.
!
ADH-75, ADH-170
Shaded areas are stated in metric equivalents
* Does not include 1/4-inch thick gasket.
Filter Replacement
The frequency at which filters have to be replaced is best
determined by each location.
• Verify main door is closed
(this is to eliminate contamination of clean room).
• Discontinue electrical power to the dryer.
• Remove filter access cover plate.
• Remove pre-filters.
• Remove HEPA filters.
• Replace both HEPA and pre-filters.
• Reinstall filter cover plate.
• Perform any necessary scrubbing of the dryer.
• Reestablish electrical power to the dryer.
Filter Requirement