When both units of the air conditioner are installed, it is necessary to lay the electrical wires and connect them to the network, the electrical circuit diagram of the air conditioner serves as a guide for this.
We connect indoor and outdoor units
First, you need to connect the two air conditioner units to each other. And only after that, an electrical cable is installed that connects the indoor unit to the general system of the apartment.
The air conditioner circuit is not the same for different models. Appliances for apartments are most often connected to one phase. Three phases are required to connect amplified power devices.
Using existing wiring
It is allowed to connect the wires of the air conditioner to the wiring in the apartment if the electrical circuit allows it and:
- Low power device;
- Window or mobile;
- If the network is designed for high loads;
- As a temporary solution to the problem;
- A separate line is allocated for the air conditioner, to which powerful appliances are not connected.
At the same time, the air conditioner connection diagram is the main document to be guided by.
It is forbidden to connect to a ready-made electrical network if:
- The network is laid with aluminum wires;
- Small section wires;
- No grounding and special protective systems;
- The wires are old or damaged.
If the device is connected to a ready-made network, it is necessary to install a differential circuit breaker and an emergency shutdown mechanism.
The schematic diagram provides for the installation of an automatic machine at least 20 A.
Separate power line
This type of connection has many advantages.
The device is not subject to voltage surges, overloads of the network itself are impossible. A special wire can be connected to the device anywhere in the room.
The connection diagrams of the outdoor and indoor units, as well as the electrical schematic diagram of the air conditioner, are printed on the back side of one of the units of the apparatus.
Power line parameters:
- The line must be equipped with an automatic machine;
- Be sure to have grounding;
- Only copper wires are laid;
- The cross-section of the wire must be at least 3 by 2.5.
When connecting an air conditioner to the electrical network, you should certainly resort to the user manual, which contains an electrical connection diagram for an air conditioner of this particular type.
If there is a separate wiring to the device, it is not necessary to install a differential circuit breaker and an emergency shutdown mechanism for the indoor unit.
Great site, well done! thanks for the detailed information!
Tell me the CORRECT scheme for connecting power and connecting the blocks with electric wires LG cs12awk (I'm trying to fix the installer's jamb). power is first supplied to the external unit or from the internal to the external? is there a fundamental difference, because there are jumpers on the wb terminal anyway?
From what I understood from your question - there is no difference.