Boiler Wiring Diagram Y Plan. The reason this system is called a Y plan is because of the shape of the 3 port valve. Diagram gas boiler wiring full how does an s plan heating system work y central diagrams 2005 mini heat schematic rv 4 pin domestic electrical and a works combination with 2 zones mid position valve 87 w janitrol frost thermostat for moreover hot water guide underfloor faq plus pump ideal logic overrun diynot forums drawing.
Showing flow from boiler to Y Plan or Mid Position Diverter Valve and then onto heating or hot water circuit. Wiring diagrams The following diagrams show you how to install the Nest Thermostat on. Y Plan Wiring Diagram With Pump Overrun - Wiring Diagram.
Y plan wiring diagram with hive.
In the past this was by far the most common setup as it only requires one valve. Diagram gas boiler wiring full how does an s plan heating system work y central diagrams 2005 mini heat schematic rv 4 pin domestic electrical and a works combination with 2 zones mid position valve 87 w janitrol frost thermostat for moreover hot water guide underfloor faq plus pump ideal logic overrun diynot forums drawing. 230 V combi boilers page 20 Low voltagedry contact combi boilers page 21 S-plan page 22 Y-plan page 23 OpenTherm boiler page 24 District heating with electrical control valve page 25. 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.
