| 摘要 |
The invention relates to a heating installation (1). This installation comprises a closed liquid circuit (2) which is under pressure during operation, a pressureless liquid reservoir (10), an actuable pump (15) with an inlet connected to the reservoir (10) and an outlet connected to the circuit (2), actuable draining means for draining liquid out of the circuit to the reservoir (10), pressure detecting means (12, 14) for detecting the pressure in the circuit and control means (13) for activating the pump (15) when exceeding of a minimum pressure in negative direction is detected and for activating the draining means when exceeding of a maximum pressure in positive direction is detected.
|
