What should I do if I have an existing V11 system, but received a new board with V12? September 12, 2018 A What should I do if I have an existing V11 system, but received a new board with V12? You will require the use of the MGC Fire Panel Configuration Kit: Model #MGC-FACP-CFG-KIT1 to downgrade your new board from V12 to V11.
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