Can't find any specifications for the potterton netaheat 10-16 MKII boiler (S-plan open vented system), so can anybody tell me if it has a pump overrun facility??
I understand that you can test just by monitoring the pump after turning CH off using the room stat??
I have a kettling problem that I'm hoping to cure by a good descale and fitting auto-bypass valve. If I test system and there is no pump overrun then if the boiler facilitates this then maybe the wiring for the pump is not correct?? where can I get wiring diagrams for an old boiler??
I'd probably fit valve anyway, as I have TRV's (bar one, bathroom but flow minimised through balancing).
How do I set up the valve to ensure minimum flow rate for boiler, whatever that maybe as I don't have the specs??
Also recommendations for valve?? htgeng recommended danfoss on previous topic but I've not yet managed to find supplier??
Screwfix do 2 that appear to do same thing but price differential is £10?
Help always appreciated, thanks Matt
I understand that you can test just by monitoring the pump after turning CH off using the room stat??
I have a kettling problem that I'm hoping to cure by a good descale and fitting auto-bypass valve. If I test system and there is no pump overrun then if the boiler facilitates this then maybe the wiring for the pump is not correct?? where can I get wiring diagrams for an old boiler??
I'd probably fit valve anyway, as I have TRV's (bar one, bathroom but flow minimised through balancing).
How do I set up the valve to ensure minimum flow rate for boiler, whatever that maybe as I don't have the specs??
Also recommendations for valve?? htgeng recommended danfoss on previous topic but I've not yet managed to find supplier??
Screwfix do 2 that appear to do same thing but price differential is £10?
Help always appreciated, thanks Matt
