Samson trovis 5600, Mounting And Operating Instructions

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8.10 Processing an external demand
The controller can process binary or analog demands for an externally required signal by a
more complex secondary system.
NOTICE
Overheating may occur in the heating circuits of the primary controller without control valve.
Excessive charging temperatures in DHW circuits without control valve controlled by the pri-
mary controller are excluded when the default settings of the controller are used: while storage
tank charging is active, no flow temperature higher than the charging temperature is used by
the primary controller. Nevertheless, if the
Priority for external demand
function is activated,
the external demand is also processed during storage tank charging.
Functions WE Configuration
Priority for external demand OFF DHW–CO4–17 = ON
8.10.1 Processing an external demand with a binary signal
Regardless of the operating mode for control loop 1, except for manual mode, the flow temper-
ature entered in 'Min. flow set point in heating circuit with active binary demand' is used in con-
trol circuit HC1 when the binary input is either a make contact (Demand switching state active =
1) or a break contact (Demand switching state active = 0).
Note: The connection of the binary input with the setting HC1–CO1–17 = ON depends on the
system selected. Refer to the fold-out page.
Functions WE Configuration
Binary demand processing OFF
1 HC1–CO1–17 = ON
Demand switching state active / 0, 1
Parameter WE Parameter settings
Min. flow set point in heating circuit with active
binary demand 40.0 °C HC1–PA1–10 / 5.0 to 50.0 °C
86
EB 5610 EN
System-wide functions