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P01432Q-rev.1
8.3 Position of Electrical Wiring Connection
• The electrical wiring connection for the indoor unit is shown in Section 8.2.2.
• The connection at the terminal block for the indoor unit is shown in the figure below. Check the outdoor
unit for the combination before the wiring work. The screws at the terminal block should be performed
according to the tightening torque as shown in the table below.
Tightening Torque for Terminals
Screw Size
Tightening Torque
TB1
M4
0.7 - 1.0
(1.0 - 1.3
ft·lbs
N·m)
TB2
M3.5
0.9
(1.2
ft·lbs
N·m)
(A)
(B)
(C)
Screw
NOTICE
Terminal Block for Power Supply Wiring
TB1
Terminal Block for Communication Cable
TB2
L1
L2
1
2
A
B
● Do not connect the main power supply wiring to the communication
line (Terminals A, B, 1 and 2 of TB2). If these are connected, the
printed circuit board (PCB) will be destroyed.
● Note the following for wire connections at TB1 and TB2:
(A) Attach a piece of insulation tape or sleeve at each terminal.
(B) Maintain a safe distance between the electrical box and the
terminals to prevent a short circuit.
(C) Maintain a safe distance between the terminals.
