Honeywell UDC2800 Product Manual page 129

Universal digital controller
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Step
What to do
4
Change the relay and/or
the current output board.
5
Change MCU board.
How to do it
See  Installation for more information.
Installation instructions supplied with the new
relay or board.
Installation instructions supplied with the new
board.
Chapter 8 - Troubleshooting/Service
129

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