Means of disconnection from the supply having at least 3mm contact separation in both poles must be incorporated in the fixed wiring. It should NOT be mounted on an unearthed metal surface. The Economy 7 Quartz is supplied with it’s own surface mounting box, which can also be mounted over a single or double gang flush wall box. WARNING: ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION TO ENSURE THE UNIT IS PROPERLY EARTHED. INSTALLATION AND CONNECTION SHOULD ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED PERSON AND IN ACCORDANCE WITH THE CURRENT EDITION OF THE IET WIRING REGULATIONS. The Economy 7 Quartz is an Electro-mechanical water heating control, which can be set to take advantage of cheap night-rate electricity so that there is a tank of hot water available for the morning.
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