Electrical Wiring Work For Bu Module - Gree R410A Service Manual

Confirm the each cable connected to the terminal screw is exactly and securely after finishing the
electric work.
Fix each ground wire separately with the ground screw.
If the connecting wire is connected to the terminal incorrectly, the unit will not work normally.

7.7 Electrical Wiring Work for BU Module

1) Unscrew the electrical equipment plate.
2) The structure of behind the electrical equipment plate.
NO. 1
Name Printed circuit board
NO. 4
Name Ground screw
3) Let the power cable and transmission line go through the rubber ring. In order to protect the power cable
and transmission line from damaging by the hole, the rubber ring cannot fall from that, otherwise, it
may cause electrical shock or fire etc.
4) Connect the power cable of the BU module to the L, N terminals with the sign of Power and as well as
the ground screw.
a) FXB3A-K
b) FXB5A-K
2
DIP switch
5
Terminal black for
transmission line
Super Free Match
Service Manual
3
Terminal black for indoor unit
power supply
6
Terminal black for BU module
power supply
117 INSTALLATION