Mitsubishi M80 series Connection And Set Up Manual page 208

M800S/M80 Series Connection and Setup Manual
5 Installation
[FCU8-EX703]
(1) Remove the cover of FCU8-EX703.
(2) Insert FCU8-EX561/EX563/EX565 into FCU8-EX703.
(3) Close the cover of FCU8-EX703.
(4) Remove the cover on the back side of control unit.
(5) Fix FCU8-EX703 to the control unit with three screws of M3 x 25.
171 IB-1501269-F