Hi All,
I posted this on the ultmatehandyman forum as well, but I am abut desperate for help If anyone here has any thoughts as to what might be going on it would be gratefully received.
Bit of a last dash attempt with this now to get it going before I pack it up and send it back to Nest.
I'll try and put as much detail to see if anyone can help or spot a problem
[*]The system is a Intergas Eco RF 24 running as a heat only system boiler with a 3rd generation nest and a Joule unvented cylinder
[*]It is an S-Plan set up with two Honeywell zone valves, one for hot water one for heating
[*]Nest is connected to the boiler by the two OpenTherm wires and is mounted on the wall, powered by some other wires the installer re-used - so it is not on the USB plug adapter that comes with it
[*]The heating functions perfectly - when called the boiler fires up, the zone valves open and the radiators warm up. The flow temp can be adjusted by the nest, everything works as it should. Boiler modulates nicely and the nest holds the house and a steady temp really well
[*]The nest is set to OpenTherm for heating and "on/off" for hot water, and is set as a system boiler
[*]If hot water heating is called for the zone valve opens and the water tank is heated ONLY if the radiator heating is going.
[*]If there is no heating called for , and you just ask for water on its own, the zone valve opens but the boiler does not fire. My understanding is the boiler should fire at it's max flow temp when hot water is demanded until the target temp is reached.
[*]My Nest shows software version 5.6 1-4
I have three options now:
Find some sort of fault with the set up and magically it all starts working
Send it back and go for something different. Debating Tado.
Abandon the whole OpenTherm thing and set it all up as just on/off
As a note, we did add a switched live from the hot water zone valve to the boiler. This did make the boiler fire for hot water demand, but it sent it a bit crazy, cycling on and off every 90seconds or so. This has been removed.
Any help anyone can provide would be massively appreciated. I'm at an absolute loss. I am in Leeds, so if there are any experts locally who would know how to fix this then I'd be happy to pay!
Neither nest or Intergas have been very helpful.
I posted this on the ultmatehandyman forum as well, but I am abut desperate for help If anyone here has any thoughts as to what might be going on it would be gratefully received.
Bit of a last dash attempt with this now to get it going before I pack it up and send it back to Nest.
I'll try and put as much detail to see if anyone can help or spot a problem
[*]The system is a Intergas Eco RF 24 running as a heat only system boiler with a 3rd generation nest and a Joule unvented cylinder
[*]It is an S-Plan set up with two Honeywell zone valves, one for hot water one for heating
[*]Nest is connected to the boiler by the two OpenTherm wires and is mounted on the wall, powered by some other wires the installer re-used - so it is not on the USB plug adapter that comes with it
[*]The heating functions perfectly - when called the boiler fires up, the zone valves open and the radiators warm up. The flow temp can be adjusted by the nest, everything works as it should. Boiler modulates nicely and the nest holds the house and a steady temp really well
[*]The nest is set to OpenTherm for heating and "on/off" for hot water, and is set as a system boiler
[*]If hot water heating is called for the zone valve opens and the water tank is heated ONLY if the radiator heating is going.
[*]If there is no heating called for , and you just ask for water on its own, the zone valve opens but the boiler does not fire. My understanding is the boiler should fire at it's max flow temp when hot water is demanded until the target temp is reached.
[*]My Nest shows software version 5.6 1-4
I have three options now:
Find some sort of fault with the set up and magically it all starts working
Send it back and go for something different. Debating Tado.
Abandon the whole OpenTherm thing and set it all up as just on/off
As a note, we did add a switched live from the hot water zone valve to the boiler. This did make the boiler fire for hot water demand, but it sent it a bit crazy, cycling on and off every 90seconds or so. This has been removed.
Any help anyone can provide would be massively appreciated. I'm at an absolute loss. I am in Leeds, so if there are any experts locally who would know how to fix this then I'd be happy to pay!
Neither nest or Intergas have been very helpful.
