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    North American Solar Solutions - Differential Controller for all temperature settings, Boilers, Solar Water, Recirculation,

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    Peter Moonen

    by Peter Moonen

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    Introduction:

    1 collector array

    1 storage tank 1 pump and auxiliary heating Description:

    The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (△Ton) between the collector array (T1) and the storage tank (T2) is reached. If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (△Toff),

    or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump ( R1) is switched off.