Heating controls wiring guide issue 17. Boiler pump overrun non stop.
Pre9220 Remote Delay Timer Prefect Controls
Boiler pump overrun wiring diagram. So the switched live will bring on the boiler and pump and on shut down. The boiler relay powers the boiler live input. The diagram can be used as a boiler with a pump overrun as well you just take the pump live neutral earth from the wiring center and run it to the boiler terminals. 230v 50 60hz 5a n l n l l bdr91 place link here a b53a a c53a a b c l n 230v 50 60hz 5a n l l bdr91 a b53a a c53a a b c l n n l 52 wiring for a boiler that requires a permanent live. System wiring diagrams. Y plan system schematic.
Testing i think what your asking is you had a conventional boiler with just a switched live if your replacing the boiler with a model that has a pump overrun then you need to add a permanent live to the boiler and then the pump will need to be wired back to the boiler. For use with a boiler that requires a. Two pump multiple zone wiring diagram with pump overrun and mid position valve. Showing flow from boiler to y plan or mid position diverter valve and then onto heating or hot water circuit. Click the icon or the document title to download the pdf. It can be adapted how you need it.
Why run the extra n and e from boiler to wiring centre for the pump. 51 wiring for a basic boiler not requiring a pump overrun. Its just a guideline on how the average boiler is wired. Plumbing forum plumbing advice. Contains all the essential wiring diagrams across our range of heating controls.
Gallery of Boiler Pump Overrun Wiring Diagram
