Return Flow Sensor Acting As A Thermostat - Samson TROVIS 5474 Mounting And Operating Instructions

Operational alarm over a binary input
The inputs for the operational alarm are marked in the wiring diagrams (section 12) with BE2
BM_K1 for Boiler 1 and with BE1 BM_K2 for Boiler 2.
Function
Operational alarm K1, 2
Operational alarm after start-up
Function
Operational alarm K1, 2

5.11 Return flow sensor acting as a thermostat

The return flow sensors can optionally be replaced by thermostats. For this purpose, the inputs
for the return flow sensors are defined as binary inputs. The thermostats are connected to the
same terminals as the return flow sensors.
Function
Return flow sensor RüF1, 2
WE Configuration
ON Co1, Co2* -> Fb01 = ON
* Only in systems Anl 4 to 7
WE Configuration
ON Co1, Co2* -> Fb01 = OFF
0 s Start-up time for boiler / 0 to 5400 s
* Only in systems Anl 4 to 7
WE Configuration
ON Co1, Co2* -> Fb04 = OFF
StEiG: Thermostat closes
FALL: Thermostat opens
* Only in systems Anl 4 to 7
Boiler functions
41
EB 5474 EN