9.8 Parts Replacement Procedures

Introduction

Equipment needed

These procedures tell you how to access and replace the following printed wiring boards in your controller.

Display/Keyboard

MCU/Output

Power/Input

2nd Input

Digital Input

Auxiliary Output

DMCS Communications

RS422/485 Communications

Modbus Communications

To accomplish the procedures that follow, you will need the following equipment:

Phillips Head Screwdriver

Flat Bladed Screwdriver

Small Pliers

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Honeywell UDC 3300 manual Parts Replacement Procedures, Introduction Equipment needed