Central Heating 3 Way Valve Diagram. Part 4 in the heating wiring series covers how the 3 port mid position valve works internally allowing 3 separate positions from only 2 mains inputs website. Drayton 3 port valve wiring diagram another photograph.
Wiring diagram for s plan zoned central heating 20171031122040 21yplanschematic with mid position valve wiring heat recovery valves hvac 3 way 4 valve selection uk diy faq for mid position valve wiring diagram to domestic heating systems. People often ask me for central heating diagrams showing how the pipework circuits are arranged in a central heating system. It has a two way switch that operates when the valve opens rather than the simple on off switch of the 22mm valve.
Drayton 3 port valve wiring diagram another photograph.
Leave a reply cancel reply. In the past this was by far the most common setup as it only requires one valve. The sketch below shows a three way diverting valve system. When the coil is completely satisfied the resultant return temperature to the mains is equal to the supply temperature.
