6 Optional functions
Complementary systems
SMGB0099 rev.0 - 12/2016
231
6
CO
2
sensor
On-screen display:
E4
.
This signal controls the inlet of outdoor air according to the concentration of CO
2
inside the room.
Connect the cables as indicated in point
. Only CN3 contacts 1 and 2 can be connected.
The signal has the following control logic:
Connector
Contact number
X1
Damper valve
CN3
1, 2
ON
—
OFF
Enabled
Compatibilities between optional signals
The following table shows the compatibility between the different optional signals:
PC-ARPFE
optional
functions
Room
thermostat
Remote
control
thermistor
Remote
thermistor
Wireless
remote
control
Outdoor
cooling
mode
Enthalpy
sensor
CO
2
sensor
Room thermostat
–
–
–
–
–
–
–
–
Remote control
thermistor
C8
–
–
–
–
O
O
O
Remote thermistor
–
–
–
–
–
–
–
–
Wireless remote
control
–
–
–
–
–
O
O
O
Outdoor cooling
mode
E1
–
O
–
O
–
–
–
Enthalpy sensor
E2
–
O
–
O
–
–
–
CO
2
sensor
E4
–
O
–
O
–
–
–
Not available: –
Available: O
