Vaillant Ecotec Pro 28 + WiFi Thermostat

[uniQ]

Hi,

I purchased the following thermostat: BHT-002 because the heating timer on the front of the boiler stopped working:

https://www.krieger-therm.ch/downloads/bht-002-with-wifi.pdf

My boiler connections look like this:

Do I connect the dry contact (1+2) from the thermostat to RT?

Thanks

 

[Riley]

I’m afraid mate you shouldn’t even have the case off if you are not gas safe as it forms a combustion seal which needs to be tested to ensure that it’s replaced safely. You need a gas safe engineer in