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iCOM
Controls Training and Service Manual
114
Chapter 4
General Troubleshooting Data
* Basic Operation of the Opto and Triac
* Troubleshooting the Opto-Isolator and Triac
* Control Input Check (Sensors)
* Frequency Conversion Chart (Temperature)
* Frequency Conversion Chart (Humidity)
* Troubleshooting Signals and Checklist
* Moisture Content Charts
This section covers only very basic electronics. The major components, such as
triacs and opto-isolators are briefly described and related to the Liebert units you
have come to study. It is our hope that this brief introduction to electronics
stimulates your interest and encourages you to go further in the field.
The path of a signal from beginning to the end - using the four block process.
T/H
INPUT
MICRO
MEMORY
OUTPUT
LOAD
C P U