External electrical connection


1	MyVallox VOC sensor	10	Ethernet connection and power plug on top of the unit
2	MyVallox %RH sensor	11	RJ45 female
3	MyVallox CO₂ sensor	12	Motherboard (underneath the cover)
4	Remote monitoring Modbus RTU	13	MyVallox control panel
5	External temperature sensor NTC 4K7	14	These low-current signals can be led by using just one cable.
6	Cooker hood	15	Connection box power supply max. 6 W
7	Digital input 1. 8 different functions.	16	NB! The ventilation unit has three vacant feedthroughs. If necessary, more holes can be added or all the required low-current signals can be led out of the unit with one cable and split outside the unit.
8	Digital input 2. 8 different functions.


MB_A	External Modbus A signal	D/l1	Digital input 1
MB_B	External Modbus B signal	D/l2	Digital input 2
+24V	+24 V voltage (DC)	11V1	11.1 V operating voltage
GND	Digital and analog ground potential	AN/I	Analog input 0-10 VDC
RS_A	Local hardware Modbus A signal	RM/I	24 V relay input
RS_B	Local hardware Modbus B signal	RM/O	24 V relay output
NTC	External temperature sensor connector

Table 1. Power supply
Object	Feed
Maximum	≤ 6 W
MyVallox Control	1 W
MyVallox Touch	0.5 W
%RH sensor	0.3 W
CO₂ sensor	1.2 W
VOC sensor	2 W
External actuator or damper motor of the unit that receives feed from the relay
Voltage	24 VDC