5
Revised 09/09
Smog-Hog
PCN Series Models
5.4 DETERMINING THE LOSS OF HIGH
VOLTAGE
As components build up dirt, the indicator light dims
then goes out at a point approximately 3.5KV cell
voltage. If satisfactory operating voltage is present at
the ionizer and cell and the light is out, the problem is
either a defective indicator light or light circuit.
If no voltage is present at the cell, and the indicator light
is out:
1. Remove the cell and depress the door interlock
switch.
2. If the indicator light comes on, the problem is in the
cell. Check for the following:
a. Excessive build up between cell plates.
b. Something lodged between the cell plates, bowed
or bent plates, etc.
c. Cracks in any of the eight cell insulators, carbon
tracking or other insulator damage.
3. If the indicator light remains off with the cell out of
the unit, remove the ionizer and activate the power
supply.
4. If the indicator light comes on, the problem is in the
ionizer. Check for the following:
a. Broken or loose ionizer wires.
b. Excessive build up on insulator(s).
c. Cracked or broken insulator(s).
5. If the light remains out with both the ionizer and cell
removed, remove the side access panel and check
out the high voltage power pack. See Figure 6.
a. Remove both high voltage leads from the end of
the power pack.
b. Measure high voltage (use probe) at terminal
No. 8 (output to ionizer) and terminal No. 7
(output to collector).
c. If no voltage is present or voltage is below
minimum, replace the power pack.
Note:
Minimum reading with high voltage wires
removed: 11KV at terminal No. 8 (ionizer) and
7KV at terminal No. 7 (collector).
6. If voltage is present and within limits, check for:
a. Short in the high voltage lead wires.
b. Cracked or broken cabinet insulators.
5.5 CHECKING AIR MOVEMENT
(BLOWER AND DRIVE)
1. If the unit has deficient airflow:
a. Check for any type of restriction in the pick-up
hood, flex hose or main unit.
b. Remove the pre-filter, cell and ionizer components
and check for an obstruction at the diffuser plate
directly above them. If none is present, check the
components for excessive dirt build up.
c. If components are clean, remove the side access
panel and check for:
i. Loose or broken belt
ii. Defective drive motor
iii. Loose pulley
The belt should have approximately 1⁄2” of play when
depressed with one finger. Having the belt set too
loose causes slippage and reduces airflow. Having
the belt set too tight causes an over current condition
in the motor. The resulting higher temperature
shortens motor winding and bearing life.
Figure 5
Power Pack Terminal Connections
!
CAUTION
Summary of Contents for UAS SMOG-HOG PCN
Page 1: ...OWNER S MANUAL PORTABLE ELECTROSTATIC PRECIPITATOR SMOG HOG PCN ...
Page 11: ...7 Revised 09 09 Smog Hog PCN Series Models 7 TROUBLESHOOTING FLOWCHART ...
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