The outdoor air conditioning unit has inherent limits not only in terms of capacity but also regarding the maximum temperatures it can achieve. For DHW heating, higher water temperatures are required, and if the outdoor unit reaches its limits and is unable to heat the DHW to the set temperature, it becomes necessary to assist the heating with an electric spiral.
In this section of the menu, limit values are set, upon reaching which the DHW heating switches to electric spiral heating. It is sufficient to meet one of the following conditions:
Maximum HP T5 DHW temperature
– the maximum water temperature in the DHW boiler heated by the outdoor air conditioning unit. When a request for DHW heating above this temperature occurs, the system switches to spiral heating. We recommend not setting temperatures higher than 50°C.
Maximum HP Time
– once the heating time by the outdoor unit exceeds this value, the system switches to electric spiral heating. The value is given in the format [hour:minute].
Maximum HP T6 tube Temperature
– T6 is the temperature of the liquid refrigerant at the output of the heat exchanger. If this temperature is exceeded, the system switches to DHW spiral heating. The outdoor air conditioning unit has its own protection algorithms that evaluate this temperature: above 53°C, it stops increasing capacity; above 56°C, it starts reducing capacity; and at 60°C, it stops the compressor. We recommend not setting this temperature higher than 58°C.
