How to connect Wired controller to Airco Unit

Question

How to connect Wired controller to Airco Unit

belly-89 opened this issue a year ago · comments

Hi,

Really cool project, I just placed an request at PCBway including assembly, hopefully everything goes smoothly.

I haven't opened the LG indoor unit (S12ET) yet, and since I can't find it online anywhere, it might be a stupid question. But is there anywhere that describes how to connect the controller to the indoor unit? Is there perhaps a video or something like that available?

Thanks in advance.

JanM321 · Answer 1 · Fri Oct 20 2023 17:04:57 GMT+0800 (China Standard Time)

The unit might have a CN-REMO socket (probably green) on the PCB and you can use a 3-pin JST-XH cable to connect to it. See the list of materials in this repository for the one I used. My units also came with a short extension cable plugged into the CN-REMO port which made this really easy.

Unfortunately some units don't have a CN-REMO socket soldered on the PCB, see #6 for example.

belly-89 · Answer 2 · Fri Oct 20 2023 19:05:38 GMT+0800 (China Standard Time)

Ah thanks! Just opened the bottom and indeed a cable that looks like what I need. Now waiting on PCway for approval of the design including assembly.

Thanks!

JanM321 · Answer 3 · Sat Oct 21 2023 21:36:32 GMT+0800 (China Standard Time)

Nice, that looks like what I have here.

My controllers are connected to that with a long extension cable from LG (LG PZCWRC1 or PZCWRCG3) that they also include with their wall controllers. You could either do that or put the PCB inside the AC unit somehow.

belly-89 · Answer 4 · Mon Oct 23 2023 21:24:49 GMT+0800 (China Standard Time)

Thanks!! I already have a short cable with a 3-pin JST-XH connector on it. I was thinking of simply extending it by soldering the wires to a longer cable so that I can hide it well. Do I not need to order an extra cable!