PCB1
CN1 CN2
PCN1
TB1
TB2
Terminal Block
for Power Supply
Power Supply Wiring
Ground Wiring
Communication Cable
to Outdoor Unit
Communication Cable
to Indoor Unit
Connecting Hole for
Communication Cable
Connecting Hole for
Power Supply Wiring
Terminal Block
for Communication
Cable Clamp
Figure
6.1
Electrical
Wiring
Connection
6.3 Electrical Wiring
The electrical wiring connection for the
Switch Box
is shown in Figure
(1) Turn OFF the main power switch and take off the electrical box cover of
Switch Box .
(2) Connect the power supply wiring to L1 and L2 on the terminal block TB1, and connect ground wiring to
the
terminals
in
the
electrical
box.
(3)
Connect
the
communication
cable
to
“1”,
“2”,
“3”
and
“4”
on
the
terminal
block
TB2
mounted
on
PCB1.
(4)
Tightly
clamp
the
wires
using
the
cable
clamp
inside
the
electrical
box.
(5)
Attach
the
electrical
box
cover
after
completing
the
wiring
work.
NOTE:
The
accessory
numbers
are
listed
in
Table
4.1.
17