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missing Domestic hot water temperature
Posted: Sun Jan 31, 2021 1:52 pm
by Marchel
ATAG E320S (
https://bit.ly/39ALppY)
The domestic hot water temperature thermostat is not read in the OTGW.
Is there a possibility for this?
Re: missing Domestic hot water temperature
Posted: Mon Feb 01, 2021 1:20 pm
by hvxl
Maybe your thermostat does not request MsgID 26. I believe you are using the OTGW stand-alone. In that mode, the OTGW doesn't request the domestic hot water temperature by default. If you want to obtain that data, you have to instruct the OTGW to retrieve it: AA=26.
Re: missing Domestic hot water temperature
Posted: Tue Feb 02, 2021 4:05 pm
by Marchel
hvxl wrote:Maybe your thermostat does not request MsgID 26. I believe you are using the OTGW stand-alone. In that mode, the OTGW doesn't request the domestic hot water temperature by default. If you want to obtain that data, you have to instruct the OTGW to retrieve it: AA=26.
This was the trick to make the temperature visible.
Thank you.
Re: missing Domestic hot water temperature
Posted: Mon Feb 08, 2021 6:01 pm
by sincze
hvxl wrote:Maybe your thermostat does not request MsgID 26. I believe you are using the OTGW stand-alone. In that mode, the OTGW doesn't request the domestic hot water temperature by default. If you want to obtain that data, you have to instruct the OTGW to retrieve it: AA=26.
Different boiler, but if it says
invalid.
- Schelte-Invalid.PNG (2.12 KiB) Viewed 2358 times
Any suggestions for that maybe?
Re: missing Domestic hot water temperature
Posted: Mon Feb 08, 2021 10:30 pm
by hvxl
According to the spec: "Data-Invalid: If the data ID is recognised by the slave but the data requested is not available or invalid."
I can imagine that the same firmware is used for different boiler models. The higher end boilers have a DHW sensor and will return a value. In the lower end boilers, the firmware understands the Data-ID, but because the sensor is absent, it cannot provide the information.
You could investigate if a DHW sensor spare part for the higher end boiler can be fitted to your boiler. There is a reasonable chance the firmware will then return the value. Otherwise there is not much that can be done when the boiler doesn't have the necessary hardware.
Re: missing Domestic hot water temperature
Posted: Tue Feb 09, 2021 9:58 pm
by sincze
Tnx.
The Boiler manual is mentioning this sensor indeed. And I found a small remark as well.
- otgw-boiler.png (250.79 KiB) Viewed 2301 times
As this is the TOP range model (Calenta ACE) I would expect it to be available, but with your help I now have a service ticket open with the supplier to see why this could be missing.
In addition I found. (simple Honeywell Round is not able to set this option, that is for sure).
- otgw-boiler2.png (245.68 KiB) Viewed 2298 times