I have a Remeha Calenta 40C and the built in serial port provides plenty of information on the boiler operations. I have built and installed the. Return and DWH temperatures show for me (Calenta 40C), can you try using the originial OTGW monitor to see if these values are reported by. Calenta 28c Combi Comfort System. Calenta 40c Combi Comfort System manufactured by. Remeha B.V.. Apeldoorn, The Netherlands.

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But, as always – I want more! I assembled it a few weeks ago and posted numerous requests on how to integrateit into Domoticz.

Remeha Calenta 40c manual

This configuration resulted in a combined solar-thermal hybrid system. There is no command that lists the configured alternative data ID’s. Burner Release Release 40cc time: Ignore – forgot you’d sent a PM about your Tzerra. No Heat Demand from Frost Protection[3]: Is it possible to have 2 AA MsgId’s to be polled? We had already installed a Calenta with a Remeha thermostat here, and we were very satisfied.

Remeha Boiler/CV – logging data from serial port to ESP – Domoticz

Open Fan Speed setpoint: You do calena have the required permissions to view the files attached to this post. Mon Jan 27 Has it a relation to the DHW? Everything does what it should do. Anybody been down this route or have any interest?


The main goal for them was to minimise their gas consumption and therefore reduce calenat as much as possible. We used to assemble these systems.

Solar Plus , Zutphen – Fabrisolia

Have now added code to populate devices in Domoticz and all working caleenta. Last edited by rjblake on Thu Nov 02, 9: Add the ability to plug in an ESP directly to the boiler and you have an excellent management addition to your system. I have built and installed the excellent Clenta gateway and happily getting some information from it to manage my heating system. It also seems we can set two more setpoints besides the room: Create a schedule program, for example ‘Normal’, or ‘Holiday’, Edit the schedule Monday But you can infer them by looking for the messages prefixed with ‘R’ in the log.

Looking to create a LUA script to do this, calehta at a loss as to how to get this into Domoticz.

Sadly nobody answered ‘just upgrade’ Therefore maybe i’m asking obvious questions, sorry for that. Hove, who works for Kraus, was very enthusiastic about the project implementation.

Solar PlusZutphen.

Open Minimum Gas Pressure[5]: Screen Shot at If anybody can give me pointers how to accomplish that, please tell – what really would be cool is if logged values can be exported to Excel for calentw analysis. Blocking without Frost Protection Release Input: Last edited by pwhooftman on Mon Jan 27, 1: Besides the Room SetPoint i see three more: It would be great if the opentherm website also mention what each value is exactly Best is to run the Recom software first to check the hex being sent to the Tzerra, check whick Recom XML file it is using and you may need to do some mapping.


Kraus Installatietechniek in Zutphen provided them with the support they needed to have a sustainable home. The home owners are also very excited about the complete and sustainable system. This was combined with the previous installation of the Calenta 40C and the Remeha thermostat.

I’m not sure if the hex codes are the same for the Tzerra as they are for the Calenta, but you can try the PHP scripts on github I created.

So far, I’ve managed to sniff the correct HEX string to poll the boiler for data and receive a response. For instance, return water So which setpoint you want to control next to the Room Setpoint?

Do we Can we want to control this?