How do I change name to so many devices and entities in HA?

[samusamu81]

I have two P1P2 units, bridge0 and bridge1.
What should I do to call them AC_day and AC_night?
I renamed everything in home assistant but then something went south and I had to rename everything again
What should I do to make that change permanent? Reflash? Where do I put the name I want?

The second question is: why do I have two separate single setpoint for hot & cold T and a single thermostat with two values?

I would like something like this, with the Hot/Cold temperature on the same thermostat:

While I have this:

Is it something I should work on? Can anybody point me in the right direction?

Thanks!

[Arnold-n]

Hi @samusamu81, the easiest way to rename the devices is directly in the bridge with the commands:
-P14 AC_day on bridge0 (via telnet of P1P2/W/P1P2MQTT/bridge0) followed by D5 to save, D0 to restart
-P14 AC_night on bridge1 (via telnet of P1P2/W/P1P2MQTT/bridge1) followed by D5 to save, D0 to restart
-wait until ready (max 5 minutes)
-press MQTT_Delete_All_Rebuild on one of the bridges to delete and rebuild all MQTT entities with new unique identifiers
-wait until ready (max 5 minutes)
-rebuild your HA dashboards.

For single-bridge users, it would suffice to do
-P14 new_name (name is max 8 characters) on bridge0 (via telnet of P1P2/W) followed by D5 to save, D0 to restart, wait until ready, MQTT_Delete_All_Rebuild, wait until ready, and rebuild dashboards.

There are 2 thermostats for cold/hot because all Daikin system settings are duplicated, and the MQTT-discovered version of the climate entity in Home Assistant is more limited in functionality and would not show all information if combined, and would often show the wrong color, so I had to separate these, also based on user feedback that combination and renaming of entities is unwanted. If you would like to combine, it would require some yaml coding to add a combined climate entity.

[samusamu81]

You were incredibly kind! Thanks so much!

[samusamu81]

Just to help more people, here is the step by step procedure I followed:

• I opened MQTT Explorer (or any program that let you read/write MQTT packets)
• Then I published on P1P2/W/P1P2MQTT/oldname the command P14 newname
• Then I published on P1P2/W/P1P2MQTT/newname the command D5 (to save)
• Then I published on P1P2/W/P1P2MQTT/newname the command D0 (to restart)

I am not sure why, but the "MQTT_Delete_All_Rebuild" was not available (grayed out), so I turned off the Air conditioners and the P1P2 (by cutting the power), then I deleted the MQTT P1P2 topics and subtopics, then I deleted all the devices in home assistant and then I powered everything back on. And it worked...