Honeywell UDC3300 User manual

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Remove screw
Insert screwdriver
and pry forward Grasp bezel
and pull
chassis out
23
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Pull printed
wiring boards out
of chassis
Printed wiring
boards
release points
Chassis assembly
Rubber bezel
and window
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Aux.Output board*
DMCSCommunications board*
RS422/485Communications board*
*Option boards.
May not be present.
Digital Input board*
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
Note: The transformer connectors are
polarized and will only go on one way.
PROM
location
MCU/Output board
PIN #1
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