American Dryer Corp. AD-840 - Manual (Page 35)

American Dispensing Company 88 Currant Road / Fall River, MA 02720-4781
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SECTION IX
ULTRAVIOLET (U.V.) STERILIZER
The UV (ultraviolet) sterilizer contains a true UV sensor that continually monitors the sterilization power of
the unit. When the L.E.D. (light emitting diode) display of the sensor changes from green to yellow or red, it
is time to clean the quartz sleeve and UV sensor probe. If the cleaning does not return the L.E.D. display
to green, replace the UV lamp. The average life of a UV lamp is one year of continuous use. It is also
recommended that the quartz sleeve and UV sensor probe be cleaned once every four months.
WARNING: NEVER LOOK DIRECTLY INTO THE UNPROTECTED PARTS OF THE
UV CHAMBER WHEN THERE IS POWER TO THE UV STERILIZER.
SERIOUS BURNS TO THE EYES AND SKIN MAY RESULT. ALWAYS
UNPLUG POWER TO THE UV STERILIZER BEFORE WORKING ON
IT.
NOTE: The use of other type of cleaners may be necessary depending upon the minerals or
contaminants present.
Vinegar and/or isopropyl alcohol ARE NOT RECOMMENDED for cleaning because they can
leave behind a residue that can block the ultraviolet rays from the UV lamp and quartz sleeve.
NOTE: If the UV lamp and quartz sleeve requires cleaning, the UV sensor probe will likely require
cleaning as well. Refer to the UV sensor probe cleaning procedures.
diagram 15