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10 KOMAC00607-09EN

System Architecture

The overall controls architecture uses the following:

• One Microtech III main controller

• I/O extension modules (sometimes referred to as “controllers”) as needed depending

on the configuration of the unit

• Optional BAS interface as selected

Figure 6, System Architecture

I/O Extension

Compressor 1

I/O Extension

Compressor 2

I/O Extension

Compressor 3

I/O Extension

Compressor 4

I/O Extension

EXV 1

I/O Extension

EXV 2

I/O Extension

EXV 3

I/O Extension

EXV 4

I/O Extension

Fans Circuit 1

and 2

I/O Extension

Fans Circuit 3

I/O Extension

Fans Circuit 4

I/O Extension

Fans Circuit 3

and 4

I/O Extension

Alarm/Limiting

BAS Interface

(Bacnet, Lon,

Modbus)

Microtech III Main Controller

Peripheral Bus

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