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If the Hot Water Tank has an immersion heater backup, this can be wired into the Electric Switch (output) so you can also control the heating of the hot water from the immersion heater as well as the boiler. If the Electric Switch is wired into the immersion heater, it should be covered by the same switched, fused spur as the immersion heater.
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At no point should the Tank Temperature Probe be pulled out or removed from the Electric Switch. |
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