ABOUT THIS MANUAL
Because not everyone is familiar with microprocessor-based control systems, please take a few minutes
to read this page. It explains the content and structure of this manual. This will make it easier for you to
find the information you need.
Section 1 - Safety Precautions
This section contains the safety precautions, safety decals and locations and microprocessor cautions.
You should read this material carefully before working on the unit.
Section 2 - System Description
This section includes a complete system hardware description, including special features. It shows you
how the system works in different modes and under various conditions.
Section 3 - Software Description
This section discusses the operation of the software, the programmable features, and the sequence of
operation. Each programmable feature is discussed individually to show you how each works and how
to change the settings.
Section 4 - Operation
This section shows you how to operate the Direct Smart Reefer Microprocessor Controller.
Section 5 - Diagnostics
This section shows you how to diagnosis problems. It includes both alarm code diagnostics and other
symptom diagnostics.
Section 6 - Service Procedures
This section includes step by step procedures to repair and program the Direct Smart Reefer
Microprocessor Controller. They are referenced by the Diagnostics section.
Section 7 - DSR µP Controller Information
This section offers information on the parts of the Direct Smart Reefer Microprocessor Controller,
including identifying components.
Section 8 - Schematics and Wiring Diagrams
This section includes the control schematics and wiring diagrams.