Four wire installation. Override facility. Automatic BST/GMT time change. Separate heating and hot water timings. 4, 5 or 6-Wire Installation. Fits Standard UK Backplate. 7 Day Programmable. 1 Pre-Set Programme. 3 On / Off Periods per Day. Boost Facility. Holiday Mode. Digital Display. Suitable for Gravity-Fed & Fully-Pumped Systems.
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