Hitachi RHUE-3AVHN-HM, Инструкция по установке и справочное руководство

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Domestic hot water heating is prioritised over space heating by the controller during the 2 periods that
are set in the system controller. This priority may be periodically disabled by the use of the Tariff/Timer
input on the system controller in order to prevent excessive reductions in heating capacity if the hot
water temperatures cannot be achieved by the heat pump during the normal hot water generation
cycle.
Diversion of water to heating or hot water generation is facilitated by the system controller and carried
out by the use of pumps and/or valves. Where possible it is recommended that pumps only are used in
order to maintain system reliability and in order to maximise operating efficiency and minimise the
likelihood of breakdown between system servicing.