Siemens AVS75.39 Series User Manual page 156

Burner
156 / 239
Siemens
Building Technologies
Without boiler sensor
The boiler is released as soon as a valid boiler setpoint is active.
Connections
Use
L1 Phase burner
Protective earth
N Neutral conductor
T1 Phase Boiler enable
T2 Release of the boiler
S3 Input burner fault
EX1 Input burner 1st stage hours run.
Line no. Operating line
5772 Burner prerun time
Counting number of burner hours and burner starts
Can be counted either using the signal at input EX1 (230V, BZ 5980) or based on
the relay state K4.
The selection occurs on parameter "Prerun time burner".
If the prerun time is set to (0...), the relay state K4 is counted and the counting
begins only after the set prerun time expires.
The commissioning hours between burner release and burner start are thus not
counted as part of the operating hours.
If the "prerun time" is switched off (- - -), counting occurs based solely on the state
at input EX1.
User manual RVS43.345
The settings in detail
Socket Connector type
B AGP8S.07A/109
CE1U2354en_021
2013-09-02