3. IDU Installation-Cassette
3.3.3 Mount the grille
Ensure that the buckles at the back of the grille be properly
seated in the groove of the panel.
3.3.4 Connect the two wires of the panel to the main
board of the unit.
3.3.5 Fasten the control box lid with two
screws .
3.3.6 Close the front grille, and
close the two grille hooks.
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