Choosing Correct Cable Sizes for LG Air Conditioning Units and Power Supply

Question

Hello, I want air conditioning in one bedroom and one room. There will be two units and two vents. I wanted to distribute the electrical installation for these devices. Namely, from the board to each outdoor unit 3x2.5 mm2 and from the outdoor unit to the controller on the wall 4x1 or 4x1.5 mm2....

Jacek79 · Answer

Just in case, give a twisted pair to the server room and / or a cable to the satellite Useful for later control from a phone / smart home

Piotr2608 · Answer

Cable - maybe 4x4mm / 2 or 4x6mm / 2?
But seriously, you have to start with the most important thing - what power the device should be installed or what devices and with what power should be installed? What electrical system layout is in the house? Is it a TN, TN-S, TN-C, TN-CS, TT or IT electrical grid system?

Jacek79 · Answer

Do you like to punch yourself in a way to show off? 4x6mm2 to power the air-conditioning in the room, Recalculate the demand for such a room.

shulc · Answer

but what to convert, as the author of the post said and who will forbid the rich to turn on the air conditioning with the windows open. so the size of the room and the power of the units known, let's choose the wires, good luck

Piotr2608 · Answer

You make posts yourself - I asked specifically what power the device should be and what type of network should the air conditioning be connected to? The bedroom can be from the south, it has some surface, the thickness of the walls and the number of people in the room, including the RTV equipment in the room, are important. All this produces heat and, based on the adopted standards, the air-conditioning power is determined, and the electrical network is designed based on the air-conditioning power. Everything is related to the power demand and protection systems.

psilos1 · Answer

3 * 2.5mm? is enough for splits up to 18,000 BTU. In most models, the power supply is connected to the indoor unit, so it is best to install a schuko socket in the place of installation of the air conditioning. ... will be dragged along with the tubes.

Jacek79 · Answer

Speaks well Even a tent with an area of 30m2 in the desert can be supplied with 2.5mm2 in order to obtain the optimal air temperature

chudy698 · Answer

Thanks for showing interest.

The units are to have an area of one 22m2 (bedroom with slants) and the other is about 30m2 (dining room with kitchen, sunny south direction) with the dining room and kitchen connected with the living room and communication, creating an open area of about 60m2. I would like to pull the cables together with the pipes now, because I would like the buildings split. That's why I ask what cable for the power supply and where is it better to pull the cable inside or outside, and which cable for the controller on the wall. Should the cable to the controller be pulled from the split or the outdoor unit? In addition, I will put a torsion, as a colleague wrote above, wrote to the alarm.

Jacek79 · Answer

See the instructions for some air conditioning. Will be described

Choosing Correct Cable Sizes for LG Air Conditioning Units and Power Supply

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