If the supply temperature “SupplyTemp” exceeds the limits, defined by parameters BST-02 and BST-01, the boiler stages “Stage2Cmd” and “Stage1Cmd” will be respectively switched off. If the boiler supply temperature “SupplyTemp” exceeds the limit of BST-01, the boiler valve will stay open and the boiler pump on, in order to get the temperature down again.
Table 10. Parameter List
Description |
Value Range |
Default Value |
Unit |
BST-01: maximum boiler supply temperature stage 1 |
50...500 |
90 |
°C |
BST-02: maximum boiler supply temperature stage 2 |
50...500 |
85 |
°C |