AEC AD Series - Replacing Worn Desiccant

Page 56 AD Series Dehumidifying Dryers
Your AEC dryer may need new desiccant if it exhibits any of the
following symptoms:
• The process air dew point measured with a portable dew
point monitor is higher than -10°F (-23ºC) throughout the
process drying cycle.
• Noticeable amounts of desiccant in the beds is a medium-
brown color or darker.
If you notice any of these signs, replace the desiccant in the
desiccant beds. Desiccant replacement kits are available from the
AEC Parts Department. If you want, an AEC technician can repack
desiccant beds at your site.
WARNING!
Handling desiccant material is HAZARDOUS.
Wear an N-100 type safety filter mask or equivalent to
avoid prolonged breathing of desiccant dust. Wear
safety goggles and gloves to avoid contact with eyes
and skin.
• Handle with adequate ventilation.
• Wash hands thoroughly after handling.
✚ FIRST AID ✚
In case of eye contact, immediately flush eyes
with plenty of water for at least 15 minutes.
SEE A PHYSICIAN IMMEDIATELY IF IRRITATION PERSISTS.
8-5 Replacing Worn Desiccant
CAUTION!
DESICCANT BEDS ARE HOT DURING OPERATION.
To avoid burn hazard, make sure desiccant beds are sufficiently
cool before replacing worn desiccant.