Samson TROVIS 5500 - Locking Manual Level; Locking the Rotary Switch; Feeder Pump Operation; External Demand for Heat Due to Insufficient Heat Supply

106 EB 5573-1 EN
System-wide functions
8.12 Locking manual level
To protect the heating system, this function can be used to lock the manual level. When this
function has been activated, automatic mode is started when the rotary switch is set to in au-
tomatic mode.
Functions WE Conguration
Lock manual level 0 CO5 > F21 - 1
8.13 Locking the rotary switch
When this function has been activated, the controller remains in automatic mode regardless
of the rotary switch position. The rotary switch can no longer be used to adjust the controller
settings. It is still possible to enter the key number.
Functions WE Conguration
Lock rotary switch 0 CO5 > F22 - 1
8.14 Feeder pump operation
In system Anl 3.0, the feeder pump UP1 only starts to operate in the default setting when a
ow temperature demand of a secondary controller exists. If CO5 > F14 - 1 is congured,
this is also the case when the control circuit RK2 requires heat.
Functions WE Conguration
Operation UP1 0 CO5 > F14 - 1
8.15 External demand for heat due to insufcient heat supply
An external heat source can be demanded using the 0 to 10V output. The function block for
a request for external demand CO1 > F18-1 is automatically set. The function block param-
eters allow the transmission range to be determined. When a system deviation in RK1 great-
er than 10°C lasts longer than 30 minutes, a voltage signal corresponding to the actual de-
mand is issued. At the same time, the RK1 valve is forced to close. After 30 minutes, the ex-
ternal demand for heat is canceled (0V issued) and the control signal output in RK1 is en-
abled again.
Functions WE Conguration
Demand for external heat 0 CO1 > F20 - 1