Navien Hot Water heater - Navilink

gduteil · March 9, 2024, 8:38pm

It’s not compatible with Navilink 128 (at least the version I have), even the HA “official” Cozytouch integration (Overkiz) isn’t.

I made a custom integration for Cozytouch that works with my Navilink 128 + Naema Micro 25, you can try it if you want : GitHub - gduteil/cozytouch: Atlantic Cozytouch integration for Home Assistant

Pepeanuts · March 16, 2024, 10:20pm

Thanks!
what sensors are available?

gduteil · March 17, 2024, 1:57pm

It depends on your device, and some adjustments need to be done if your device has not been integrated yet.
What device are you using ?

Lot of sensors and controls are available in the Cozytouch API, at least everything you can have in the official app will be accessible in the integration, but much more sensors are published and not used by the app.

mbcomer · March 27, 2024, 9:25pm

I have an NPE-240A2 and I just ordered a NaviLink Lite. I also have a logic analyzer as well as a capable digital storage oscilloscope. I think I am going to set things up initially using this integration, but for fun I also think I am going to have a go at examining the RS-485 traffic. I’ll let you know what I find out .

j4ys0n · March 27, 2024, 9:53pm

oh - can you say more about examining the RS-485 traffic? i have another device i want to do that on. i have a couple of USB to RS-485 connectors but haven’t used them yet, haven’t figured out where to start actually. that’s the next rabbit hole i’m going down

tom_l · May 14, 2024, 11:31pm

29 posts were merged into an existing topic: Navien, ESP32 Navilink interface

wjcarpenter · June 20, 2024, 4:40pm

@mbcomer Were you able to do this exploration, and did you figure out anything interesting?

scyto · September 4, 2024, 1:02am

I am a little confused by the name of these items and what the on/off button is or isn’t?

what is the difference between inlet temp and hot water temp?
is the button my hot power button / circulation being on or a true power on/off button to the unit as a whole?

i didn’t see the note about dip switches until after i had installed the navilink lite and i would prefer not to re-open as our unit it is a little difficult to get too, so hoping can someone clarify if I have the full set of entities?