14
VUT 160/250/350 PB EC L/R A11/A14
www.ventilation-system.com
CONNECTION OF ADDITIONAL EXTERNAL CONTROLS TO THE VUT 160/250/350 PB EC L/R A14 UNITS
The unit has an option of additional external controls connection to the X2 terminal block, which is located on the hinged electrical
mounting plate of the control unit. Extra connections to the unit are shown in dotted lines in the External wiring diagram.
Connection of the automatic fire fighting system contact (PK).
Upon connecting the automatic fire extinguishing system contact remove the jumper between the terminals 1 and 2. In case of fire
the normally closed dry contact breaks the control circuit from the central fire-fighting board and cuts off power supply to the unit.
Connection of the external control unit contact,
such as CO
2
sensor (NO, C terminals).
Connect the CO
2
sensor to the terminals 6 and 7 by using a normally closed dry contact. If the dry contact is closed, the unit turns to the
maximum speed.
HV2 (+U, 0-10V, GND) humidity sensor connection.
Connect the HV2 humidity sensor (not included in the delivery set, can be ordered separately) to the contact socket located on the side
panel of the control unit from the side of the extract pipe in accordance with the External wiring diagram.
Connection of outer air dampers (SM1 supply air damper, SM2 exhaust air damper).
The air dampers and the actuator are not included in the delivery set and can be purchased separately.
For controlling the air dampers use the LF 230 BELIMO electric actuator with a voltage of 230 V and an open-close controlling. Connect
the electric actuators to the 12 and 13 terminals (refer to the External wiring diagram).
External control units wiring diagram:
Power input 230 VAC
Electric shock hazard!
1
1
L
2
2
N
3
3
PE PK PK +U
+U
0-10V
4
4
5
6
7
8
9 10 11
12
13
Whit
e
Gr
een
Br
own
Yello
w
External device
NO (CO
2
sensor))
Control panel
- Tx Rx +
Tx Rx
3
2
1
GND
+U
0 -10V
GND
GND
NО C
X1
X2
SM-L SM-N
Humidity sensor
Electric actuators
of the external air dampers
SM1
supply
L1 N
SM2
exhaust
L1 N
PK fire alarm panel
(remove the jumper while connecting the contact)
The unit is operated with the control panel. For detailed information, read the control panel user’s manual.
To work with the pre-installed software connect the VUT 160/250/350 PB EC L/R A14 unit to a laptop or to a PC via a USB cable with the
Type A and Type В contact sockets.
The USB cable is not included in the delivery set.
USB Type A
USB Type B