Locking The Rotary Switch; Feeder Pump Operation; External Demand For Heat Due To Insufficient Heat Supply - Samson TROVIS 5573 Mounting And Operating Instructions

8.16 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
Lock the rotary switch

8.17 Feeder pump operation

In system Anl 3.0, the feeder pump UP1 only starts to operate in the default setting when a
flow temperature demand of a secondary controller exists. If CO5 > F14 - 1 is configured,
this is also the case when the control circuit HC2 requires heat.
Functions
Operation UP1

8.18 External demand for heat due to insufficient 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 HC1 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 HC1 valve is forced to close. The HC1 valve icon blinks
to indicate that the operating situation has changed as long as the external heat source is re-
leased. After 30 minutes, the external demand for heat is canceled (0 V issued) and the con-
trol signal output in HC1 is enabled again.
Functions
External demand for heat due to
insufficient heat supply
96
WE Configuration
0 CO5 > F22 - 1
WE Configuration
0 CO5 > F14 - 1
WE Configuration
0 CO1 > F20 - 1
EB 5573 EN