Siemens AVS75.39 Series User Manual page 170

Cont type input EX1
SLT error message input
L1
170 / 239
Siemens
Building Technologies
Break contact (NC)
The contact is normally closed and must be opened to activate the selected
function.
Make contact (NO)
The contact is normally open and must be closed to activate the selected function.
The safety limit thermostat can be considered to monitor the maximum boiler
temperature.
Off
The safety limit thermostat is not considered.
Always
The safety limit thermostat is always considered. The heat source is shut down if
triggered.
Automatically
The control checks whether a boiler sensor exists.
The SLT is considered if available.
SLT is not considered if no boiler sensor exists.
User manual RVS43.345
The settings in detail
CE1U2354en_021
2013-09-02