Installing The Programming Unit - Steibel Eltron LWE 40 Installation

INsTALLATIoN
Installation
Odd number of appliances
If there is an odd number, divide the appliances into two groups.
Connect the smaller group to the "Fan 1" terminal.
Number of fans
Number of appliances at "Fan 1" terminal (extractor fans)
Number of appliances at "Fan 2" terminal (supply air fans)
5.2.3 Wiring diagram with 2 appliances
5.2.4 Activation of fan stages by means of an external signal
You can use sensors with potential-free N/O or changeover con-
tacts. Only one of the versions shown should be connected.
Cross-ventilation
Differential mode
32 | LWE 40
3 5
1 2
2 3
1
2
3
4
1
2
3
4
LED+ +24 V DC
LED GND GND
Schalter + 24 V DC
Betriebsart GND
Stufe 0/I Alarm
Stufe II Lüfter I
Stufe III Lüfter 2
LED+ +24 V DC
LED GND GND
Schalter + 24 V DC
Betriebsart GND
Stufe 0/I Alarm
Stufe II Lüfter I
Stufe III Lüfter 2
5.2.5 Connecting the programming unit to the control unit
1
2
7
3
3 4
4
1
1 Back of the programming unit
2 Adaptor board
5.3

Installing the programming unit

Note
Before installing the programming unit, the wiring be-
tween the control unit and fan and between the control
unit and power source must be complete.
f Pass the adaptor board through the cover frame and the f
plate frame. The small tabs will subsequently point into the
wall.
f Position the adaptor board on the control unit so that the ter- f
minal strips are not covered.
1
2
3
4
2
www.stiebel-eltron.com