| Once the coolant temperature has reached 84 °C, the control unit switches to the energy-saving part load mode. If the coolant temperature continues to rise above 88 °C, the control unit switches to the controlled waiting period. If the coolant temperature does not drop below 76 °C within 900 seconds during the controlled waiting period, the heating unit will start with the normal start procedure in full-load mode when the coolant temperature does drop below 76 °C. |
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