Shorting Cell Plates; Testing Plunger Safety Switch - GAYLORD CG3-UVi-SPC Series Technical Manual

Chapter 6 – Testing and Repair, Page 6-52___________________________________________________

Shorting Cell Plates

There are three primary causes of an ESP Cell shorting. They are:
1. Foreign material lodged between Cell plates. If found remove.
2. Grease build up between Cell plates. If found clean thoroughly.
3. Cell plates warped or damaged reducing the distance between. Warped or damaged plates
cannot be repaired. The Cell must be replaced.
4. Broken ionizing wire. Refer to "Replacing Ionizing Wires" on Page 6-49.
5. Broken Cell Isolators.

Testing Plunger Safety Switch

Overview
The Plunger Safety Switch and Transformer(s) are located in the Electrical Compartment located at one
end of the Ventilator (Refer to Figure
opening the ESP Cell Access Door, shuts off the power to the power supply transformer and bleeds power
from the transformer, by the Grounding Disc making contact with the brass grounding screws (Refer to
Figure 6-53-1 and 6-54-1).
Switch. The first is a mechanical failure and the second is a failure of the micro switch (Refer to Figure 6-
53-1). To test for these two situations proceed as follows:
Access to the Electrical Compartment
To gain access to the Electrical Compartment, proceed as follows:
1. Open the ESP Cell Access Door.
2. Remove the Plunger Disc by unscrewing counter clockwise (Refer to Figure 6-52-1).
3. Remove the Electrical Compartment Cover Plate (Refer to Figure 6-52-1).
Plunger Disc
Replace as needed.
6-48-1 and 6-52-1). The Plunger Safety Switch, when released by
There are two potential areas that can cause failure of the Plunger Safety
Figure 6-52-1
Access to the Electrical Compartment
ESP Cell Access
Door in Open
Position
Electrical Compartment
Cover Plate