| 摘要 |
<p>The heating system is provided with a fuel-fired heating boiler (10) and a heat pump (26) which is switched on or connected to the heating boiler (10) as required. The pipe system consists of a boiler circuit (11, 21, 17) leading via the heating boiler (10) and a heating circuit (12, 13, 15, 16, 21) leading via radiators (14, 36) which is connected to the boiler circuit via a mixing valve (20). The condenser (25) of the heat pump (26) is connected into the heating circuit. For regulating the heating water temperature in the heating circuit (12, 13, 15, 16, 21) a weather-dependent continuous control (22) is provided which acts on the mixing valve (20). The movable valve member of the mixing valve (20) is connected to a circuit-breaker (51) for the heat pump (26) in such a manner that, in the adjustment range of low heat requirement, it switches the heat pump (26) on and interrupts the connection of the heating circuit (12, 13, 15, 16, 21) to the boiler circuit (11, 21, 17). In the event of increasing heat requirement, the mixing valve (20) allows increasingly hot boiler water to enter into the heating circuit, if appropriate the boiler capacity being increased, an additional heating system being switched on or the heat pump (26) being switched off also. <IMAGE></p> |
