Yes ive had this before where the existing boiler was replaced y plan control wiring and a separate cable had to be installed from the boiler to the pump. Y plan system schematic.
Honeywell Boiler Control Wiring Diagrams H1 Wiring Diagram
Y plan wiring diagram with pump overrun. Faq wiring diagram y plan pump overrun st9420 and dt92e faq wiring diagram s plan pump overrun st9420 and dt92e faq wiring diagram s plan plus pump overrun st9420 and dt92e faq wiring diagram combination boiler st9120 honeywell t4 additional wiring diagrams lyric t6 additional wiring diagrams v4043 zone valve s plan operation. Y plan wiring diagram with hive. Its just a guideline on how the average boiler is wired. Electrical wiring for central heating systems. Gravity system y plan with no hot water off wire. Heating controls wiring guide issue 17 v4073a y plan how a mid position valve operates within a y plan heating system how a w plan heating system operates.
System wiring diagrams. In the base of the boiler was a removable terminal block kinda like a big black plug with terminals for boiler supply ln pump ln and switch terminals for the control circuit. Showing flow from boiler to y plan or mid position diverter valve and then onto heating or hot water circuit. If you have a gravity fed or a y plan system 3port valve with no hot water off wire the green status light should be altered to be blue. It can be adapted how you need it. 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.
View and download hive active heating installation manual online.
Gallery of Y Plan Wiring Diagram With Pump Overrun
