Thanks. Could you confirm which 2 I’m looking to be identical? R1T and R4T?
Did you do any other steps/settings change before checking, or just looked when the system had been idle for a number of hours?
Leaving water temp. before BUH (R1T) 26.7
Leaving water temp. after BUH (R2T) 0
Refrig. Temp. liquid side (R3T) 24.7
Inlet water temp.(R4T) 22.4
Looks like R1T and R4T, since R2T is zero, so probably no BUH fitted for it to be after 
.
Im trying to understand the section on the help guide ’ Step 3 (optional) - Controlling your Daikin Altherma heat pump’. It seems within the daikin manual theirs not description of the connections into the block and or where to connect a remote thermostate. Also is thier a simular connection on the block to turn on the Hot water using ESPaltherma and home asstatant. Ive got a way to hunt for the cheapest time to turn the hot water on, but i would like to use the relay as a switch to then use the most econmic time rather than doing this every day mannually.
Good evening,
1st post on here but I have been a frequent visitor for the last month since having Daikin 8kw Heat Pump installed.
I purchased everything to get ESPAltherma up and running, but I’m currently totally stuck.
I’m hoping someone will please help me out.
I’m up to the stage where the m5stick plus is sending sensor info to MQTT in Home Assistant.
I can’t get my head around the next stage of exactly what to do in Yaml with that information as everything I’ve tried brings up an error.
I’ll admit I’ve never done anything like this before
Advice appreciated.
Thank you
I felt the same way. I have mine set up now, but I had to get some help along the way. I have written up on my blog. Hope it helps.
Thank you.
I’ll have a good read and try to figure it out.
Having a quick look it should certainly assist.
I’ll report back.
Just wondered if there is an advantage of using ESPAltherma over something like P1P2MQTT?
Feels like P1P2MQTT is less problematic as there is no need to open the case of the heat pump and can locate the ESP inside the house next to the MMI where WiFi signal is less of an issue.
As far as I can see they both provide similar data or am I missing something?
Thanks
As an ESPAltherma user, I did look at P1/P2 before I went with that. At the time, it didn’t seem easy to get hold of his implementation, and I couldn’t be bothered with building the complexity of AtMega + ESP, versus an M5StackC. Given it enables controlling/configuring the HP in a lot of ways, provided you can get your hands on the hardware, or can make it, it could be really good. However, other than opening the case, making and installing the ESPAltherma was quick and easy, for me at least.
@Stephen_Crown hope you are well? Just been fixing some logs errors and noted ‘state_class: measurement’ should be removed from two templates, hope it helps?
incorrect
- name: "Operation Mode"
unique_id: "Operation Mode"
icon: mdi:heat-wave
state_class: measurement
state: >
{{ state_attr('sensor.esp_altherma', 'Operation Mode') }}
- name: "Error type"
unique_id: "Error type"
icon: mdi:message-alert
state_class: measurement
state: >
{{ state_attr('sensor.esp_altherma', 'Error type') }}
Correct
- name: "Operation Mode"
unique_id: "Operation Mode"
icon: mdi:heat-wave
state: >
{{ state_attr('sensor.esp_altherma', 'Operation Mode') }}
- name: "Error type"
unique_id: "Error type"
icon: mdi:message-alert
state: >
{{ state_attr('sensor.esp_altherma', 'Error type') }}
All good with sorting yaml out and getting all the info out to Home Assistant thanks.
The next part I want to do is get all the information into the charts I’ve seen.
I don’t need to post any info on Emoncms, its just for my own use.
That part looks challenging.
More reading coming up…
You build your own Emoncms server.
Ah, you’re assuming i know how to build my own server.
I did say I’m a complete novice at this, even Home Assistant is alien to me.
I did think I could set this up reasonably fast.
I was wrong!
I can imagine it was frustrating. I don’t think I would have got it going without Speak to the Geek’s help. I found it slightly ironic that I could get the hardware part working (you would think that is the harder part), but the Home Assistant part was tricky. I think my Emoncms is £15 a year. I would just put it up there.
I’m obviously doing something wrong here…
I copy your emoncms file code code into Yaml config, input api and node, click save and get an error
“please provide a filename”.
Google doesnt come up with anything so i’m at a loss.
Any assistance please?
I am not sure why it needs a filename. You are putting in the configuration.yaml file right? Do you have rights to edit the file. I assume so. I see now reason why it would need a filename. I assume it is Home Assistant that is complaining?
This is what mine looks like.
Ah, I can see your input starts at line 605, I was starting a new one at line 1.
After adding them to the end of the others (line 160 for me) allows me to save.
I’ve no idea what i was supposed to put in input node so just put 1.
Over at Emoncms inputs, I’m only getting the one “binary_sensor.espaltherma_3way_valve_on_dhw_off_space”
Tried different node numbers but it just adds the 3way valve again.
But at least thats another small step
Thank you
Glad it helped a bit. Are your sensors the same name as mine?
Further on the P1P2 approach… in addition to the hardware option, there seems to be a way to speak bluetooth to the madoka thermostat - GitHub - mduran80/pymadoka: A python library to control Daikin BRC1H (Madoka) thermostat
I’ve got as far as establishing a bluetooth connection, but haven’t yet taken it any further. (Bluetooth on linux seems flakey, so I got a bit distracted by setting up an ESPHome to act as an always-connected bluetooth/wifi gateway. Now that’s done, I’m ready to get back to actually exploring the protocol itself.)
That github project seems to be more about air conditioners and doesn’t mention heat pumps so much. Being naive and optimistic, I speculate that the protocol used over bluetooth would be the P1P2 protocol itself, rather than Daikin inventing a new protocol to get information out of a device that’s already sitting on the P1P2 bus.
In the first instance, I wonder if anyone using P1P2 would be prepared to share raw data captured from the bus. (I could get myself set up with a direct interface, but the point of this was to be able to get hold of data without having to actually make physical connections to the hardware…) The data depends on what sort of device you’re speaking to, and the github doesn’t seem to have much for the altherma heatpumps. (Possibly not so easy if the raw data is processed directly on the embedded device.)
@KnightPhoenix I think you actively use P1P2 ?
(Probably warrants a thread of its own if there’s any interest.)
I did look into the bluetooth on the Madoka as there is a mobile app for it https://play.google.com/store/apps/details?id=com.daikineurope.control.assistant&hl=en
I managed to get the Madoka paired to my phone but the app wouldn’t let me control anything as it said it wasn’t compatible with my daikin system.
I am also planning on taking a deeper look into the MMI as looking at the PCB there are a number of additional headers on the board which I hope might be something interesting. Has anyone else had a look at this before? Or has anyone by any chance got a firmware update file for the MMI that I can take a look at?
Sorry for delay, I’ve been busy with work.
I messed up HA while first getting to grips with it, I decided to wipe it all and start again.
So far I’ve got to inputting feeds into emoncms, which went ok.
Can you explain how you got your Shelly to feed into emoncms, as I’ve got the same and can’t see how?
I’m slowly getting there.
Thanks
