Wiring System Diagram; Connection Cable Preparation; Connection Of Wiring - Fujitsu ARYG LHTA 1ph Installation Manual

Screw with
special washer
Ring terminal
Cable
Terminal block
• Use ring terminals and tighten the terminal screws to the specified torques, otherwise,
abnormal overheating may be produced and possibly cause heavy damage inside
the unit.
Tightening torque [N·m (kgf·cm)]
M4 screw
M5 screw

6.1. Wiring system diagram

•
Connection cable (to outdoor unit)
•
Wired remote controller cable
Indoor
unit side
Tighten the indoor unit connection cable and power supply indoor and outdoor unit,
terminal board connections firmly with the terminal board screws. Faulty connection
may cause a fire.
If the indoor unit connection cable and power supply are wired incorrectly, the air
conditioner may be damaged.
Connect the indoor unit connection cable by matching the numbers of the outdoor and
indoor units terminal board numbers as shown in terminal label.
Earth (Ground) both the indoor and outdoor units by attaching an earth (ground) cable.
Unit shall be grounded in compliance with the country or region's regulations.
Be sure to refer to the above diagram for do correct field wiring. Wrong wiring causes
malfunction of the unit.
Check local electrical rules and also any specific wiring instructions or limitation.
En-8
Ring terminal
Sleeve
Screw with
special washer
Ring
terminal
Cable
WARNING
1.2 to 1.8
(12 to 18)
2.0 to 3.0
(20 to 30)
Earth (Ground) line
Power line
Control line
Red
White
* Earth (Ground) the remote controller
Black
(Please connect it when necessary.)
CAUTION
CAUTION

6.2. Connection cable preparation

Keep the earth (ground) wire longer than the other wires.
Earth (Ground) wire
• Use a 4-core wire cable.

6.3. Connection of wiring

• Use care not to mistake the power supply cable and connection wires when installing.
• Install so that the wires for the remote controller will not come in contact with other
connection wires.
(1) Remove the control box cover and install each connection wire.
(2) After wiring is complete, secure the remote controller cable, connection cable, and
power supply cable with the cable clamps.
(3) Install the control box cover.
• Do not bundle the remote controller cable, or wire the remote controller cable in
parallel, with the indoor unit connection wire (to the outdoor unit) and the power
supply cable. It may cause erroneous operation.
Power supply cable
or connection cable
CAUTION
Control box cover
Loosen the screws
(2 locations)
Cable clamp
Remote controller
cable
Connection cable
(to outdoor unit)
CAUTION