Central Heating Y Plan Wiring Diagram. Thermostat wiring diagrams for heat pumps heat pump thermostat wire diagrams. S plan wiring.
Terminal x s plan 10 w plan 7 y plan 8 sundial classic with pump overrun c daveyoz 2009 rev 1a. Notes some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire. There is often great confusion regarding the wiring of central heating systems.
Wiring diagram for s plan central heating system 2017 hive.
Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable g green wire controls fan on auto the diagram shows how the wiring works. S plan wiring. Y plan heating system wiring diagram y plan wiring diagram alloff on motorised valve for motorised valve. Nov 20 2016 1.