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
A
1
A
2
1
2
A
1
A
2
1
3
2
C
oi
l dri
ve
r
profi-air room humidistats (cat. no. 78300841) can be connected to this input. If the set value at the room humidistat is exceeded,
the control system switches the ventilation unit to mode 3. If the wiring is arranged in parallel, several room humidistats can be
connected to the contact.
The digital input on the control board of the ventilation unit can also be used to connect room humidistats
to the ventilation unit. See the profi-air 180 flat or profi-air 250 / 360 flex ventilation unit installation
instructions / operating instructions.
6.3 Humidistat input
6 Wiring diagrams
Installation instructions / operating instructions – profi-air flat / flex connection box
7
