8 | Electrical installation
Installer reference guide
43
CVXM20A + FVXM25~50A
Split system air conditioners
4P625991-1C – 2021.09
a Terminal block
b Electrical component block
c Cable clamp
5 Pull the wires to make sure that they are securely attached, then retain the
wires with the cable clamp.
6 Make sure that the wires do not come in contact with the metal parts of the
heat exchanger.
7 In case of connecting to an optional adapter, see "8.3 To connect optional
accessories (wired user interface, central user interface, wireless adapter,
etc.)"[443].
8.3 To connect optional accessories (wired user interface, central user
interface, wireless adapter, etc.)
1 Remove the electrical wiring box cover. See "6.2 Opening the indoor
unit"[424].
2 Connect the optional adapter wire to the S21 connector. To connect the
optional adapter wire to the option, refer to the installation manual of the
optional adapter.
3 Lead the wire as shown in the figure below.
a S21 connector
b Op�onal adapter wire
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