Search found 5 matches

by Dipapi
Sun Dec 12, 2021 8:12 pm
Forum: Opentherm Gateway Forum
Topic: Stand alone without thermostat
Replies: 1
Views: 1395

Re: Stand alone without thermostat

Hi, You certainly could, though it's not recommended. You will need to build your own controller. Provided your boiler supports opentherm, you would need to give your boiler a setpoint for the temperature of the hot water that flows through your radiators/heaters. Since just turning on the heat (mea...
by Dipapi
Sun Dec 12, 2021 7:49 pm
Forum: Opentherm Gateway Forum
Topic: H73 error on Nest when having gateway in between
Replies: 2
Views: 1601

Re: H73 error on Nest when having gateway in between

Today I tried again to install the gateway, now it works! My (likely wrong) conclusion at the time was that the link between thermostat and gateway didn't work, since I was able to turn on the boiler with a CS command. My final hypothesis indeed is that the communication between boiler and gateway w...
by Dipapi
Sat Dec 11, 2021 9:47 pm
Forum: Opentherm Gateway Forum
Topic: H73 error on Nest when having gateway in between
Replies: 2
Views: 1601

H73 error on Nest when having gateway in between

Problem I have, log attached: Nest V3 thermostat hooked up to my boiler with my new OTGW from Nodoshop in between Nest has H73 error, meaning that there is no Opentherm communication Logging only shows "T00030000 Read-Data Slave configuration (MsgID=3): 00000000 0", repeating every second....
by Dipapi
Wed Nov 24, 2021 8:37 pm
Forum: Opentherm Gateway Forum
Topic: Override for zone control
Replies: 2
Views: 1857

Re: Override for zone control

Hi Schelte, Thanks a lot for your reply and clear feedback. I'll get a gateway and start playing around first with a static setpoint and then try to implement a decent controller. Luckily my boiler indeed modulates based on its return temp, so that'll already help. Indeed, it seems that my TRVs repo...
by Dipapi
Tue Nov 23, 2021 8:50 pm
Forum: Opentherm Gateway Forum
Topic: Override for zone control
Replies: 2
Views: 1857

Override for zone control

Hi all, I stumbled on the Opentherm Gateway in a search to make a zone controller for my house and I was wondering if and how it would work to enable zone control in my situation. My situation is as follows: - Nest thermostat V3 on ground floor controlling the boiler through opentherm. - Ground floo...

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