Connecting the assembly cable
Cable specification
Model | Power cable | Interconnection cable | Type GL |
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18/24 | 3G x 2.5 mm², | 3G x 1.0 mm², | 25 A | |||
2 x 0.75 mm², | ||||||
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• Connect the power cable to the auxiliary circuit breaker. If every pole fails to connect to the power supply, it must be incorporated in a wire with a contact opening of ≥3 mm.
• Use shield cable (Category 5; less than 50pF/m) for noisy environmental site.
Connecting the cable
Electrical work
(1)For electrical and earth works, comply with the‘technical standards of electrical installations’and the the‘wiring regulations’of the Local wiring regulations.
(2)Tighten the terminal block screw to under 1.2 N•m (12 kgf•cm).
(3)Precautions when connecting terminal blocks of the indoor unit
Before connecting, make sure the connecting part of the terminal socket is facing upwards.
07 INSTALLATION
Upside down | The terminal | There is no ring terminalto | |
socketis damaged. | cover the wire. | ||
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There must be no space between the terminal and the screw when connected.
- Any remaining space may become a fire hazard due to overheating of the electrical contact.
The terminal socket is upside down.
Either the screw is not fitted properly or there is a space between the screw and the ring terminal.
• For the terminal block wiring, use a wire with a ring terminal socket only.
Regular wires without a ring terminal socket may become a fire hazard due to overheating of the electrical contact during a wiring work.
When you install the unit, make first refrigerant connections and then electrical connections. Connect the air conditioner to grounding system before performing the electrical connection.
If unit is uninstalled, first disconnect electrical cables, then refrigerant connections.
If the outdoor unit is more than 5 meters away from the indoor unit, you must extend the cable. The maximum length of the cable is 15(09/12) / 30(18/24) meters.
1. Extend the assembly cable if necessary.
• Do not connect two or more different cables to extend the length. It may cause fire.
English-41
A3050 MG Model
2014/4/29 17:17:07