EN
UAB KOMFOVENT we reserve the right to make changes without prior notice
C5.1-20-05
4
1.3. External Elements Connection
The air handling unit is designed with external connection terminals which are located on the controller box,
inside the air handling unit. All external control elements are connected to the terminals.
1
2
1. Control panel connection
2. „Ethernet“ computer network or internet connection
1.3 a Picture. Controller with connection terminals
Total power of all external elements with 24 V supply may not exceed
15 W.
37 38 39 40 41 42 43 44 45 46 47 48
13 14 15 16 17 18 19 20 21 22
~24V
~24V
~24V
GND
0.
.1
0V
0.
.1
0V
0.
.1
0V
NO
NO
NO
NO
NO
C
C
FG1
DX
Indication
control
Cold
water
Hot
water
Cooling
water
Heating
water
pump
230V
AC,
1A
pump
230V
AC,
1A
mixing
valve
mixing
valve
actuator
actuator
Humidifier
Run
Alarm
Common
Common
Cooling control
TG3
TG2
TG1
S1
S2
IN5
L
L
N
N
N
N
N
23 24
25 26 27 28 29 30 31 32 33 34 35 36
~24V
~24V
~24V
~24V
0..10V
0..10V
0..10V
0..10V
C
NTC
B5
B9
B8
B7
B6
MODBUS RS485 connection
OVR
control
Common
Return
water
Supply
air
temperature
sensor
temperature
sensor
Fire
system
External
stop
Control
input
External control
B1
NTC
A
GND
IN4
IN3
IN2
IN1
B
N
N
N
N
1
2
3
4
5
6
7
8
9
10 11 12
Water pump /
coil alarm
C
DX3
/ Heating
DX2
/ Cooling
DX1/
Start
Air damper actuator
Supply air
pressure sensor
Exhaust air
pressure sensor
Air quality sensor
Humidity sensor
1.3 b Picture. External control elements connection
