Parts Replacement Procedures - Honeywell UDC 3300 Product Manual

9.8 Parts Replacement Procedures

Introduction
Equipment needed
4/00
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
UDC 3300 Controller Product Manual 261