Recent content by ijclaxtonusa

sandvic = sunvic natural = nutural

can anyone offer me some help on changing a Sunvic TLX 9201 analogue thermostat to a honeywell homexpert THR840DUK digital thermostat, the sunvic is wired up on a s plan plus system, upstairs and downstairs zoned heating via 2 port valves and a 2 port valve controlling the hot water. current...