Maximum temperature limits

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