Y-plan and S-plan reference sheets

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Free PDF · Heating controls · two-sided references

Y-plan & S-plan reference sheets

Derek’s two-sided reference sheets help you connect what the controls do with the example wiring.

Y-plan & S-plan reference sheets sample previewY-plan & S-plan reference sheets sample preview

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Learning references for the conventional 230 V, five-wire examples shown. They are not complete installation, fault-finding or live-testing procedures. Terminal numbers and control arrangements can differ. Follow the instructions for the actual controls and boiler, including permanent-live and pump-overrun arrangements. Electrical work requires competence and safe isolation.

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