Belshaw Adamatic INSIDER Ventless Donut System - Manual (Page 45)

Belshaw Bros., Inc. • www.belshaw.com • Phone 206-322-5474 • Fax 206-322-5425
Insider TS MN-1853EN 19
2. Hissing Noise
A hissing noise (or frying sound) usually stems
from a loose high voltage connection or from an
improper ground. The reduction in the designed
spacing usually is caused by bends or deformities
in the cell from mishandling.
Check for:
Damaged (bent) plates or ionizer – straighten or
replace.
Loose ionizing wires – repair or replace.
Dirty cell or large piece of foreign material
between plates. – clean.
Defective high voltage contact assembly – repair
or replace.
Poor connection between cell and contact
assembly. – repair or replace.
Loose high voltage wiring – repair.
Improper ground – check ground and correct if
necessary.
3. Humming Noise
The ionizing wires have a normal tendency to
vibrate when charged. On some occasions when
atmospheric conditions are just right and the
humidity is exceptionally low, the vibration is
aggravated to the point where and audible hum
can be noted. It is usually noted more in the
northern sections of the country during the winter
months. This condition can be further
aggravated if the ionizing-collecting cell is very
dirty. The condition is self-correcting when the
relative humidity is increased or can be alleviated
by washing the cell.
Radio and/or Television Interference
This trouble is not common but when occurring
is usually due to either a continuous high voltage
“leak or discharge”, or from the absence of a
good common electrical ground. Refer to checks
listed under 1. Arcing Noise and 2. Hissing
Noise.
4. Ozone
Under normal operating conditions all
electrostatic air cleaners produce minute
quantities of ozone as an incidental by-product,
as do televisions and other electrical appliances.
The design of the unit has been tested and is far
below the published permissible limits. The
level of detection (when it is noticed) varies from
individual to individual, some being more
susceptible than others. Usually a new unit will
produce more ozone than one that has been in
operation for several weeks. This is due to the
normal amount of sharp corners or
manufacturing burrs on the ionizing-collecting
cell. The voltage working on these areas
however, tends to round them off, thereby they
are self-correcting.
An ionizing-collecting cell that has been
damaged, where the designed spacing between
electrically charged and ground components has
been decreased, may also produce an abnormal
amount of ozone.
Check for:
a. Damaged (bent) plates – straighten or
replace.
b. Loose ionizing wires – repair or replace
c. Dirty cell – clean
d. Loose high voltage connections – repair or
replace.
5 Electronic Air Cleaner
Electrical Problems
The following instructions are for use by
qualified personnel.
WARNING
The following procedures will expose
hazardous live parts. Disconnect power
before proceeding.