Mars Comfort-Aire Century KJR-120G1/TFBG-E-01 Installation And Owner's Manual page 18

Wired Controller IOM - VMHxxDU
4. APPENDIX
INSTALL THE WIRED CONTROLLER KIT
8. Before assembling mounting back on the Front Panel, remove the
display board's screen cover.
9. Connect the Wires to the Adaptor Board.
a. Connect the wire coming from the Display board to the Convert
Board (this connection consists of 5 wires).
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