DIP switch for AI0
and AI1 (terminals
3/4 and 10/11)
Fault
Alarm
Speed (0..20 mA)
Output current (0..20 mA)
PTC A / PTC B
ESM activation
Operation
Pressure sensor
0-10 V, e.g.
QBM66.201
GND / DI COM
Stairway pressurization (ESM)
• Macro 104
• Central fire alarm system starts the fan
• Pressure control, e.g. in a stairwell, in order to keep escape routes clear
• Flying restart and automatic restart are activated
21
4 / 7
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