| 摘要 |
A heating device includes: a fluid reservoir; a heat exchanger whose feed line is hydraulically connected to the fluid reservoir geodetically deeper than its return line; a pump situated in the feed line or the return line; a bypass hydraulically connected to the feed line and to the return line, the bypass bypassing the heat exchanger and the pump; and a three-way valve situated in the connection of the bypass to the feed line or in the connection of the bypass to the return line. Based on a comparison of a setpoint temperature with a first fluid temperature determined in the return line between the heat exchanger and the bypass, the three-way valve is switched into a first switch position in which the bypass is at least partially open, or the three-way valve is switched into a second switch position in which the bypass is closed. |
