Hi I am Rick, UK Plumber, and I specialize on Boiler problems, the S plan hardly requires a diagram, if you are using Honeywell valves then.

These wiring diagrams are for guidance only and at the time of publication represent the latest . Sundial S Plan Wireless programmable room thermostat. BR.

Vaillant ecotec plus to S-plan. Discussion in There should be a clear wiring diagram in the megaflo handbook.

gas4you, 28 Jan The new vaillant boiler has a different pcb to the older type. I ahve wired everything as per s plan diagram, all works ok but boiler shuts down.

The new vaillant boiler has a different pcb to the older type. I ahve wired everything as per s plan diagram, all works ok but boiler shuts down.S-plan Vaillant ecoTec Wirning Diagram; Y-plan Vaillant ecoTec Wirning Diagram; Full Wiring Diagram (2x2 port valve) Full Wiring Diagram (3 port mid position valve) Two-channel Programmer; Electrical Current. Direct Current (DC) Alternating Current (AC) Types of Electrical Systems.

TN-S System; TT System; TN-C-S System; Fuses Fuse Types. Find wiring diagrams and info for C Plan, S Plan / Twin Zone, W Plan & Y Plan / Biflow Central Heating Systems and Boiler Connections with Pump over-run in the ERA- Electrician’s Resources Archive.

Electrician’s schematron.org Vaillant Boilers ; Combination Boilers System Wiring Diagrams. Y Plan System Schematic.

Showing flow from boiler, to Y Plan, or Mid Position Diverter Valve, and then onto heating or hot water circuit. Y Plan Wiring. S Plan Schematic.

Showing flow from boiler, up to S Plan Valves, or Zone Valves, then onto heating and hot water circuit. Feb 07,  · I need an expert's advice.

I have installed a vaillant ecotec pro system boiler on an S paln system. The new vaillant boiler has a different pcb to the older type.

I ahve wired everything as per s plan diagram, all works ok but boiler shuts down when heat demand satisfied and there is . FAQ Wiring Diagram S Plan Pump Overrun (ST and DT92E) FAQ Wiring Diagram S Plan Plus Pump Overrun (ST and DT92E) FAQ Wiring Diagram Combination Boiler (ST) Honeywell T4 Additional Wiring Diagrams LYRIC T6 Additional Wiring Diagrams V Zone Valve S Plan Operation Heating Controls Wiring Guide Issue Vaillant ecotec plus to S-plan | DIYnot ForumsCentral Heating Wiring Diagrams