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and size complying with local code are used for intermediate wiring between the outdoor unit and
the indoor units to prevent noise obstacle.
(5) When the standard wire is used for field-wiring connection, the M4 and M5 crimping terminal
should be used. When a single wire is used, make it into the shape as shown in the figure below
and connect it to tighten the washer uniformly. The screws at the terminal block should be rotated
according to the tightening torque as shown in the table below:
Connect it with the
crimping terminal
Standard Wire
2. Connect the cable for the wired remote controller or the optional extension cable to the terminals
inside the electric box through the connecting hole on the control box.
3. Connect the power cables and grounding cables to the terminals in the electric box.
4. Connect the wires between the indoor and outdoor units to the terminal in the electric box.
5. Connect cables correctly to match the terminal numbers with the mark band numbers.
6. Wireless infrared receiver connection:
Outdoor unit
7.4 Wiring Connection
Wiring connection of the indoor unit is shown below.
1. Open the electrical box cover as shown in the figure below:
2. Perform the field electrical wiring work. Close the electrical box cover after the wiring work is completed.
9000~12000Btu/h
Terminal Block
(TB1)
Terminal Block
(TB2)
L1
L2
Ring Core
Transmission cable
Wired Remote Controller
Connect it directly
as shown below
Single Wire
Indoor
unit
Main
A
B
board
Wireless
infrared
receiver
Electrical box cover
Power Cord(208/230V/1Ph/60Hz)
Tightening torque for terminals
Size
Power source
M4
Earth connection
M5
Wired remote controller connection:
Outdoor unit
18000~48000Btu/h
L1
L2
Terminal Block
(TB2)
Ring Core
Transmission cable
-17-
7. Electrical Wiring
Tightening torque
0.7 to 1.0 lbf.ft (1.0-1.3 N·m)
1.5 to 1.8 lbf.ft (2.0 to 2.5 N·m)
Indoor
unit
Main
A
B
board
Wired
remote
controller
Terminal Block
(TB3)
Power Cord(208/230V/1Ph/60Hz)
Wired Remote Controller
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