EG4 Hybrid Mini Split AC Integration

Hi all, I just installed the new EG4 hybrid mini split and so far it’s a pretty impressive machine. It’s able to hook up solar panels directly and run off grid in addition to direct grid connection.

It does have an app but doesn’t seem to be something I really want to download. It could possibly be a Tuya app but unsure.

Anyone have any success getting this on HA?

I was able to connect this to the app and I am logging data from the official app. The EG4 is apparently a rebranded Deye mini split.

I see a HACS integration on their dehumidifiers but not sure if any work has been done on their air conditioners, any help would be appreciated.

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Anyone else have any luck connecting the EG4 / Deye solar mini split AC to HA?

I also just installed two of the EG4 mini splits and am very interested in being able get them into HA. Any help developing an integration would be greatly appreciated!

I do have a small update, the architecture is Tuya. I have added it to the Smart Life app and works the same as the default app they give. I have started to go through Tuya integration but haven’t gotten full connection yet.

For the cloud app I am getting Invalid login, but on the two HACS “local Tuya” and “Tuya local” I am getting some communication - but it kind of sees it as a Govee lightbulb as default. The Tuya local gets the furthest, but I don’t know how to set this configuration up to control it yet.

Looking at ordering a couple of these. First any feedback from owners? Second anyone get this integrated with HA?

I really like it, it conditions my converted barn as an office real fast - even in negative degree temps. Install is clear, but watch the videos and not just the directions… they miss a few things. Haven’t hooked it up to solar yet, waiting for some used ones for real cheap. It’s better to have solar power the house first.

It is definitely Tuya architecture, it’s what I use instead of their app but haven’t worked to get this integrated. It looks straight forward and may work with one of the local Tuya integrations, I just don’t have a few hours to mess with it until my house build is complete.

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I installed one at a hunting cabin, pretty sweet unit. I found an RS485 connector inside the head unit wiring compartment. Maybe we could use a Modbus TCP to RS458 adapter to control the unit.

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I noticed that too on install, but not sure where to start with that. If you can find a path to communicate with it I’m game though.

So I have mine working in Tuya Smart. Shows the unit and all settings and power draw from Solar and AC. I got Tuya Connect added and can control some things from HA. But what I really want is Solar vs AC power draw so I can track that. Can Tuya Local get this additional information? Haven’t played with that yet.

Mathew, I realize this is an old post, but would it be possible to expand on this answer. How exactly did you accomplish getting all of this integrated? I have 2 of the mini’s and want to get the integrated into HA.

I was able to integrate mine locally with both Localtuya and xtend Tuya. You have to go through the Tuya developer account which you can get for 1 month free. There are many good guides on YouTube to activate localtuya, just be sure to know your IP addresses before starting.

From there identify it as a climate, put in host (IP address) and local key from Tuya developer. I used the 3.3 protocol and can now use it flawlessly. Only thing I can’t port is the solar connection, but I don’t have panels connected anyway.

If you are using LocalTuya, you can expose the consumption as additional sensor values. Just reconfigure, add additional sensors, and choose the appropriate entries. It’s actually much easier than I expected.

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Thank you for the suggestion. I am also using Tuya. I got the “Tuya Smart” app on my phone and followed the Tuya Home Assistant integration instructions. Very good and straight forward. The Android Phone App has the same interface and the “Solar Aircon” phone app. However the “Tuya Smart” app allows you to interface with HA. I can now use HA to change the temp, fan speed, mode, light on/off.
My mini split does not keep the actual temp (current temp) even close to the set temp. It see the correct current temp, and uses heat and cold correctly, it just goes 7-8 degrees further than the set point. I can set it to 70F and it will just keep on heating to 77F. The same with the Cold. Any suggestions about this are appreciated. I sent EG4 a question, but have not received an answer.
So I set up Automations in HA to limit the temperature swing. I use the “current temp” from my Ecobee thermostat. For heat when the Ecobee cools off to 71, HA changes the Mode to HOT, turns the temp up to 75, and turns on the light. When the temp on the Ecobee gets to 71, HA changes the mini split mode to FAN, and turns the light off. Same, but reversed for Cold.

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I see the exact same behavior on my aircon, will float up to 77F when set to 71F. It seems we have nearly identical setups because I have an Ecobee set up in the same room for the furnace. I have just been turning it off manually in the afternoon since it’s my detached office, but I like your automation routine. I’ll have to build one like this later.

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