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Chapter 6 – Testing and Repair, Page 6-46___________________________________________________
Smoke Pollution Control System (SPC)
Overview
Proper voltage through the ESP Cells is essential for maximum smoke removal. There is one or more
power supply Transformers located in the electrical compartment at one end of the Ventilator.
(Refer to Figure
6-48-1, 6-54-1 and
4 Cells. The Transformer(s) outputs 5,000 volts DC to the repelling plates of the Cell and 10,000 volts DC
to the ionizing wires. The voltage of each Transformer is monitored by a green status light located on the
Wash Control Cabinet (Refer to Figure 3-4-4). A solid green light indicates that the ESP Cells are operating
properly. Typically a green light off condition indicates a problem with a Cell, a Transformer or the
Plunger Safety Switch.
Green ESP Cell Status Light Off Condition
Use the following flow chart as a guide to troubleshoot a green light off condition. Then refer to the
specific test procedures.
Possible Plunger Safety Switch failure. Proceed
to "Testing Plunger Safety Switch" instructions.
Plunger Safety
Switch OK.
Possible Transformer Failure. Proceed to
"Testing Transformer Voltage" instructions.
No Voltage.
Replace
Transformer.
6-55-1). One Transformer can provide power for a maximum of
Check Voltages at the Spark Plug Terminal
Clip at the end of each wire. Proceed to
"Testing Voltages at Spark Plug Terminal
Clip" instructions.
No Voltage.
No Green Light.
Repair Plunger
Safety Switch
Voltage OK.
Check all wiring
connections.
Voltage Good.
Green Light on.
ESP Cell failure. Proceed to
"Testing ESP Cells"
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