| 摘要 |
<p>1. High-pressure monitoring method for operating a heat pump (W) in the framework of an at least bivalent heating plant, wherein, in addition to the heat pump (W), at least one additional heat source, preferably a heating boiler (K) is provided which serves to heat the heat carrier which flows through the radiators (H) and which can be input-coupled into the heating cycle via a controlled mixing valve (V) under the control of a regulating device (R), wherein, when a temperature threshold value of the heat carrier endangering the heat pump (W) is exceeded by a sensor, a disconnect signal (HD signal) for the heat pump is emitted and the latter is enabled again following a constant delay time which is followed by a fixed monitoring time during which a fault message resulting in renewed disconnection of the heat pump is given if a new disconnection occurs during its duration, characterised in that the heat pump (W) is enabled only following the expiration of the constant delay time as sole criterion only when the additional heat source (K) was not in operation at the time of the occurrence of the disconnect signal, that on the other hand when the additional heat source (K) which serves to heat the heat carrier was additionally in operation, the heat pump (W) is enabled only when the constant delay time has expired and the temperature of the heat carrier has fallen below the temperature threshold value.</p> |
