Viessmann MPA51 - Flow Diagram

24
Phase
Safety chain (option)
Alarm (option) Control thermostat Aux. valve / servomotor Safety valve 1 Safety valve 2 Fan relay PWM (fan) Flame signal Air pressure limiter Gas pressure limiter min.
Ignition
Parameters Leak detection Gas pressure limiter leak detection
Input
Output
Input
Output Output
Input Input Input Input Input
Output Output Output
Output
10 11 12 13 14 16 17 18 19 20 21 23 24 25 32 33 34 1 35 360 1 3 4 6 7 8 9
Output Input
Output same or steady Input same or steady
Flow diagram
Flow diagram
5782 991 GB