7.8 Connecting the heaters of the heating accumulator
Connect the controls of the heating accumulator’s sequence-controlled electric heaters (K28 and K29) to the expansion module TC1.4 as shown in the figure.
Make sure that the heaters are equipped with thermostats and overheating protectors.
Set the thermostat to a temperature that is up to 10 °C higher than the highest request temperature in the heating network.
Figure 1. Connecting the heaters of the heating accumulator