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Komfort ERV EC DB S14
Connect the unit in compliance with the external wiring diagram to the terminal block X1 located in the control unit.
The unit has provision for connection of extra control devices.
Control devices are not included in the delivery set and are available as specially ordered accessories.
Extra connections to the unit are shown in dotted lines.
• Connection of the automatic fire extinguishing system contact PK.
While connecting the automatic fire extinguishing system contact remove the jumper between the 11 and 12 terminals.
The connection relies on a normally closed dry contact. In case of a signal from a the central fire-fighting board the contact opens the control
circuit and cuts off power supply to the unit.
• Connection of the external control device such as CO
2
sensor (NO, C).
Connect the CO
2
sensor to the terminals 16 and 17.
The connection relies on a normally open dry contact. As the contact is closed, the unit turns to the maximum speed.
• Connection of the humidity sensor HV2 (+U, 0–10V, GND).
Connect the HV2 humidity sensor (not included into delivery set, available as a special order) to the contact socket in accordance with the
external wiring diagram.
• Connection of the external air dampers (SM1 supply air damper, SM2 exhaust air damper).
The air dampers and the electric actuator are not included in the delivery set, available as specially ordered accessories.
For connection of the air dampers use an electric actuator of LF 230 BELIMO type rated for 230 V power voltage and on/off control logic.
Connect the damper electric actuators to the terminals 22 and 23.
External wiring diagram
PK aut
oma
tic fir
e e
xtinguishing
sy
st
em (while c
onnec
ting
the c
on
tac
t r
emo
ve the jumper)
L
SM-N
SM-L
+U
Rx
TX
GND
C
NO GND 0-10V +U
PK
PK
PE
N
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
SM-N
SM-L
+U
Rx
TX
GND
C
NO GND 0-10V +U
PK
PK
PE
N
7
8
230 V / 50/60 Hz
XP
X1
QF
Control panel
-
Tx
Rx
+
W
hit
e
Br
own
Gr
een
Yello
w
External air
damper actuators
SM1
supply
N L1
SM2
exhaust
N L1
NO contact
of an external
device
as CO2 sensor
GND 0-10V +U
Humidity sensor
1 2 3
6
6
5
5
3
3
2
2
4
4
1
1
L
6
5
3
2
4
1
USING SOFTWARE
To operate the unit using the pre-installed software connect the unit to a laptop or to a PC via a USB cable with the Type A and Type B contact sockets.
The USB cable is not included into delivery set.
USB Type A
USB Type B
UNIT CONTROL
