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. Also there will be a hot water off live fed through the cylinder thermostat.
3 Port Valves And Y Plan Heating Systems Plumbing Tips
Y plan heating system wiring diagram. This allows the system to work on heating only. This diagram shows the wiring layout using the most typical components. The water flows from the boiler through the bottom of the valve then the valve either sends the flow of water through port a to heating port b to hot water or through both ports in order to heat the radiators and hot water together. This video covers the wiring and electrical operation of a y plan system. Here coloured wires indicate the permanent mains supply to the boiler and programmer. Part 3 in the series looks at y plan wiring a system which uses a single 3 port valve.
A y plan heating system is a system that uses one motorised valve which has 3 ports for water to flow through. Also there will be a neutral and earth. This has one inlet and two outlets one for hot water the. 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 faq pump overrun wiring diagrams for s plan incorporating a st9400 programmer. The diagram set includes wiring plans for a number of popular configurations of central heating systems c plan w plan y plan s plan s plan etc. Overview of a y plan heating system.
Remove 3 port valve making a note of the wiring you should have a switched live from the room thermostat to the valve motor. Electrical wiring for central heating systems. Wiring diagrams and further information continues below.
Gallery of Y Plan Heating System Wiring Diagram
