Connection Diagram - Helios KWL 170 W Notice De Montage Et D'utilisation

Installation and Operating Instructions
Central ventilation unit – KWL 170 W/W ET

5.1.1 Connection diagram

KWL-VOC eC
Sensor*
2
art. nr.: 20247
2x2x0,5 mm 2
KWL-FTF eC
Sensor*
1
art. nr.: 20249
2x2x0,5 mm 2
KWL-CO2 eC
Sensor*
2
art. nr.: 20248
2x2x0,5 mm 2
2x0,5 mm 2
KWL-KNX
Connect
art. nr. 20253
4x0,5 mm 2
2x0,5 mm 2
2x0,5 mm 2
RJ45
Power supply
Maximum* <= 6 W
KWL-BE Touch 1 W
KWL-FTF eC Sensor 0,3 W
KWL-CO2 eC Sensor 1 W
KWL-VOC eC Sensor 0,6 W
24 V
Voltage
DC
85499-236 21.09.2020
Rem ote
monitoring
Modbus RTU
2x2x0,5 mm 2
Connection box
MB_A
MB_B
+24V
RS_A
RS_B
GND
NTC
GND
+24V
RS_A
RS_B
GND
+24V
D/I1
+24V
D/I2
Ventilation unit internal
electrical connection
MB_A External Modbus A signal
MB_B External Modbus B signal
+24 V + 24 V voltage (DC)
Digital and analog ground
GND
potential
Local hardw are Modbus A
RS_A
signal
RS_B Interner Modbus B Signal
External temperature sensor
NTC
connector
*
All internal bus dev ices may together consume a maximum of 6 W
*
1
Maximum of 6 KWL-FTF eC sensors possible
*
2
Maximum total of 6 KWL-CO2 eC + KWL-VOC eC possible
16
Modbus cable length: maximum 100 m
tw isted pairs of w ires must be used.
A+ B-
Vdd
GND
A+ B-
Vdd GND
MB_A
MB_B
2x2x0,5 mm
+24V
RS_A
RS_B
GND
If no KWL-BE ECO is
connected, the AN/I is an
analogue input and the relay
+24V contact RM/I RM/O is a digital
RS_A
output.
RS_B
4x0,5 mm 2
GND
+11V1
AN/I
GND
RM/I
RM/O
Low press ure
Revision switch
switch
3x1,5 mm 2
D/I1 Digital input 1
D/I2 Digital input 2
11V1 10 V operating voltage
AN/I Analog input 0-10 V DC
Potential for relay contact
RM/I
max. 24 V / 1 A
RM/O Relay contact
EN
Fig. 23
KWL-BE
Touch
art. nr.: 20245 ws
2x2x0,5 mm 2
KWL-BE
Touch
art. nr.: 20244 sw
2
KWL-BE ECO
art. nr: 20246
0-10 V
0 V - 1 V = stop
2 V - 4 V = On the road
5 V - 7 V = at home
8 V - 10 V = intensive
ventilation
L
PE
N
E