Pr
e-hea
t/cool
Afterhea
ter
Alarm
Input
CO2
Aux
After
cooler
J6
J11
J7
J8
J9
J10
J12
J13
P
ow
er In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+
-
+
-
Input
Damper 1
Open
Open
Damper 2
ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1
J2
J3
J4
J5
Connection of external
0-10 V control signal
Pr
e-hea
t/cool
Afterhea
ter
Alarm
Input
CO2
Aux
After
cooler
J6
J11
J7
J8
J9
J10
J12
J13
P
ow
er In
24VDC
24VDC
24VDC
12V
USB
Fail
OK
Status
Elec. PH
0V
0V
D+
D-
T
Fire
Therm
+
-
+
-
Input
Damper 1
Open
Open
Damper 2
ModBus
1
+
2
+
T1GTC
+16V
Standby
Switch
Hygro-
stat
Fail
Alarm
Filter
Alarm
+12V
SDA
SCL
TFAH
T2AH
T2AC
0 - 10V
0 - 10V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 - 10V
0 - 10V
J1
J2
J3
J4
J5
The input can be used to control the fan mode of the ventilation unit with the help of a 0-10 V signal. The activation is carried out
as in the following diagram.
6.5 External fan activation input
The output can be used to externally display error messages and filter alarms. The output signal is 24 VDC.
6.6 Error messages output
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box
9
