Y Plan Central Heating Wiring Diagram. Wiring diagram for 2 zone heating. Im new to this but having pored over wiring diagrams for y plan my understanding is that the 3 port valve can be in one of 3 positions hw only ch only both.
This is the wiring diagram for the hive receiver that will go next to the for info the blue common and brown heating on wires have for a quick installation follow the steps in order we recommend that you install hive active heating in the order shown in the diagram below. Central heating control wiring. And you should select the most appropriate diagram that matches the components you have installed in your system along with what youre hoping to achieve in terms of controllability.
Fill the heating system and vent any air out.
I have modified my central heating system to a y plan. These are shown at the bottom right of the diagram. 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. With a ch on or absent and hw on or absent signal only you can indeed only have the 2 possibilities you describe which i guess would be hw only or both.