Plumbing forum plumbing advice. The boiler relay powers the boiler live input.
Y Plan Heating With Unvented Hot Water Cylinder
Boiler pump overrun wiring diagram. It can be adapted how you need it. Boiler pump overrun non stop. 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. Showing flow from boiler to y plan or mid position diverter valve and then onto heating or hot water circuit. 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. Heating controls wiring guide issue 17.
Contains all the essential wiring diagrams across our range of heating controls. Y plan system schematic. So the switched live will bring on the boiler and pump and on shut down. System wiring diagrams. 51 wiring for a basic boiler not requiring a pump overrun. Two pump multiple zone wiring diagram with pump overrun and mid position valve.
For use with a boiler that requires a. Its just a guideline on how the average boiler is wired. Click the icon or the document title to download the pdf. 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. Why run the extra n and e from boiler to wiring centre for the pump.
Gallery of Boiler Pump Overrun Wiring Diagram
