Beginner’s question here. I suppose its a common problem and I hope someone can tell me in which direction I should be heading.
I am building an autonomous solar system with a BasenGreen DIY lithium battery (with BMS), a multiplus 2, lynx distributor (without shunt), a Victron MPPT 250/85 MC4 and a cerbo GX. My system is enclosed in a large metal cupboard and I have installed an AC (230V) ventilation fan to prevent overheating.
What would be the easiest way to have this fan powered on/off automatically based on temperature ?
I don’t mind whether it is based on ambient temp in the cupbord, inverter temp or battery sensrors.
In any case the 230V AC power itself will have to come from the multiplus.
You can install a shelly switch, this communicates to the GX over wifi and also contains a temp sensor. A simple nodered flow will turn it on and off, you can also do that manually via vrm or the UI.
HAHA ! Ok thanks. Yes I think I was contemplating something more complicated than necessary. I think I will do what you suggest and use a temp controller. Cheers.
Your multiplus should have come with a tempurature sensor that you can plug into temp sensor inputs on the Cerbo GX. Then connect your AC fan into Relay 2 of your Cerbo GX and configure the programming to come ON/OFF based on set temperatures