The collector array heats the buffer tank. If the temperature level in the buffer tank is high enough to heat up the preheating tank, the discharge pump of the buffer tank (primary loop) and the loading pump of the DHW standby tank (secondary loop) are started up. Consequently, the solar energy from the buffer tank is delivered to the preheating tank via the external heat exchanger. The domestic hot water first flows through the preheating tank and then the series-connected standby tank. If the temperature in the standby tank is not higher than the desired temperature, the tank is heated to the desired temperature by the auxiliary heating.
The system consists of the following components:
- Collector loop connection, contains
- [Collector array]hugo\sites\help_tsol\content\Anlagendefinition\Kollektorfeld_index.en.md, contains
- External heat exchanger
- Buffer tank
- DHW supply, contains