Hi all. any help is gratefully received!
I installed a Nest (DIY) back in October but I have since realised that it was not working as expected.
It does not seem to be using the tank stat and hence I suspect that I am using a lot of gas. Not good at the moment.
It was also not firing the boiler for calls for heat, instead just pumping any hot water that was present due to a previous call for hot water.
I believe that I have a 1990's style S-Plan with no zone valves. Instead I have seperate pumps for H and HW. I also have a non-powered valve that diverts water to H or HW. Not quite sure how that works.
The tank is (I believe) a thermal store.
Pictures attached are all before I made any changes. I will then post pics of where I am at.
Don't reply yet - part 2 to follow.....
I installed a Nest (DIY) back in October but I have since realised that it was not working as expected.
It does not seem to be using the tank stat and hence I suspect that I am using a lot of gas. Not good at the moment.
It was also not firing the boiler for calls for heat, instead just pumping any hot water that was present due to a previous call for hot water.
I believe that I have a 1990's style S-Plan with no zone valves. Instead I have seperate pumps for H and HW. I also have a non-powered valve that diverts water to H or HW. Not quite sure how that works.
The tank is (I believe) a thermal store.
Pictures attached are all before I made any changes. I will then post pics of where I am at.
Don't reply yet - part 2 to follow.....
Attachments
-
Boiler Details.jpg230.9 KB · Views: 61
-
Programmer Front.jpg147.5 KB · Views: 61
-
Programmer Wires and Guide.jpg163.7 KB · Views: 64
-
Tank.jpg278.8 KB · Views: 58
-
Thermostat Front.jpg95.5 KB · Views: 59
-
Thermostat Guide.jpg152 KB · Views: 56
-
Thermostat Wires.jpg120.4 KB · Views: 61
-
Wiring Centre.jpg200.1 KB · Views: 62