Advertisement
4
WIRING
1. Using the specified cables, ensure to connect the wires, and fix wires securely so that the external tension to the
cables do not affect the connecting part of the terminals.
Incomplete connection or fixation may cause a fire, etc.
Be certain to install wires by connecting them to terminals of the same numbers according to the following wiring diagram.
2. Be sure to connect earth wire. (Grounding work)
Do not connect the earths wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone.
Incomplete grounding causes an electrical shock.
3. For electric work, strictly follow the Local Regulation in each country, Indoor, outdoor, and this Installation Manual,
and use an exclusive circuit.
Capacity shortage of power circuit or incomplete installation may cause an electrical shock or a fire.
Indoor Unit P.C electrical parts
This work is unnecessary for concealed duct type, under ceiling type and 4-way air discharge cassette type (0 to 3
series).
This work is necessary for each indoor unit.
1. Disconnect the read wire between remote controller terminal and CN41 (RC) connector on the P.C.board.
P.C board of Indoor Unit
Change this wire to Noise filter (Accessory part)
Remote controller terminal
2. Connect the Noise Filter between remote controller terminal and CN41 (RC) connector on the P.C.board.
3. Bind this wire and main terminal wire by bind band.
Internal And External Connection Wiring
1. Install wires from the outdoor unit to the main unit as in usual wiring.
(Wires (1), (2), (3) and ground wire.)
2. Install wires (1), (2) and ground wire only when installing connection wires from the master unit to the sub unit.
Remote Controller wiring
1. Installing connection wires from the master unit to the sub unit.
2. Install jumper wires between the main unit and sub unit. The jumper wires of the remote controller have no polarities.
The remote controller circuits are low voltage circuits. These circuits must not be made to directly contact internal and
external wires or contained in the same conduit tubes that house internal and external wires.
(Otherwise malfunction will be caused by noise)
CN41 connecter
Bind band (Local Producement)
5
Advertisement
