Mars Comfort-Aire Century KJR-120G1/TFBG-E-01 Installation And Owner's Manual page 16

Wired Controller IOM - VMHxxDU
4. APPENDIX
INSTALL THE WIRED CONTROLLER KIT
CN101 is the display board connection to the convert board wire
(on the display board).
5. Uninstall the display board from the front panel. Keep the display
board holder.
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