Vailant EcoTech/Netatmo wiring

You need some help attaching the thermostat to your specific boiler. This way please !
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PraveenLawrence
Posts: 3
Joined: 31 Jan 2023, 12:48

Vailant EcoTech/Netatmo wiring

Post by PraveenLawrence »

Hi

Could you please have a look at photo of an Vailant EcoTec boiler wiring with some markings. Can you advice on where I should connect the Netatmo relay?

Thanks
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Vailant EcoTec wiring.pdf
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GEORGzer
Posts: 2663
Joined: 14 Jan 2014, 18:14

Re: Vailant EcoTech/Netatmo wiring

Post by GEORGzer »

Connect die brown and blue wires to the „230V RT“ terminals and the black and grey wires to the „24V RT“ terminals.
Home: Weather Station (V3 + Rain & Wind Gauge, 3 additional Indoor Modules, Shield), Valves Starter Pack + 7 Valves, Video Doorbell
Office: Thermostat (V2), Healthy Home Coach, Smoke Alarm, 2 2in1 Sensors

Not a Netatmo employee
PraveenLawrence
Posts: 3
Joined: 31 Jan 2023, 12:48

Re: Vailant EcoTech/Netatmo wiring

Post by PraveenLawrence »

thanks very much @GEORGzer.
GEORGzer
Posts: 2663
Joined: 14 Jan 2014, 18:14

Re: Vailant EcoTech/Netatmo wiring

Post by GEORGzer »

;)
Home: Weather Station (V3 + Rain & Wind Gauge, 3 additional Indoor Modules, Shield), Valves Starter Pack + 7 Valves, Video Doorbell
Office: Thermostat (V2), Healthy Home Coach, Smoke Alarm, 2 2in1 Sensors

Not a Netatmo employee
PraveenLawrence
Posts: 3
Joined: 31 Jan 2023, 12:48

Re: Vailant EcoTech/Netatmo wiring

Post by PraveenLawrence »

Hi @GEORGzer

Thanks for your help. The thermostat is now able to communicate with the boiler via the relay I.e, I am able to increase/reduce the set point.
I now have a different issue. The app isn't communicating with the relay. I installed the app but the phone is unable to initiate the green, blue or white light on the relay. Any tips on what to do? Thanks for your help

Praveen
GEORGzer
Posts: 2663
Joined: 14 Jan 2014, 18:14

Re: Vailant EcoTech/Netatmo wiring

Post by GEORGzer »

Your Relais only has one LED, you should see it blinking when you power it on. The color tells you what kind of Thermostat/Relais you have.
Blue: 1st Gen. Thermostat
White 2nd Gen. Thermostat (Homekit compatible)
Green: OpenTherm Thermostat


For app/network troubleshooting, please create a topic in one of the dedicated forums.
Home: Weather Station (V3 + Rain & Wind Gauge, 3 additional Indoor Modules, Shield), Valves Starter Pack + 7 Valves, Video Doorbell
Office: Thermostat (V2), Healthy Home Coach, Smoke Alarm, 2 2in1 Sensors

Not a Netatmo employee
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