Hi, I am fitting a simple room thermostat to my combi boiler.
https://www.vaillant.co.uk/downloads/vrt-15-2018/vrt-15-supplement-261436.pdf
The wiring diagram is simple enough but I have questions nonetheless.
1, If the top two terminals are both neutral why have two terminals when they could be bridged internally?
2, What are the meanings of the symbols on the neutral terminals? I recognize the snow flake symbol but what does it signify, and what is the other symbol?
Thanks for your advice
.
https://www.vaillant.co.uk/downloads/vrt-15-2018/vrt-15-supplement-261436.pdf
The wiring diagram is simple enough but I have questions nonetheless.
1, If the top two terminals are both neutral why have two terminals when they could be bridged internally?
2, What are the meanings of the symbols on the neutral terminals? I recognize the snow flake symbol but what does it signify, and what is the other symbol?
Thanks for your advice