4.5.1.2 Extension module
The following functions can be selected for pressure sensors and input signals on
the I/O extension module POS9.
Input P21
Parameter
BACnet object
Selection for P21
P21Sel,
STR_VIEW,73
Selection
BACnet object
R/W
Signal type
Range
None
-
-
-
Differential pressure supply air fan
DiffPFanSu
R
Integrated sensor
0…3000 Pa
Supply air pressure
PSu
R
Integrated sensor
-3000…3000 Pa
Input P21
Parameter
BACnet object
Selection for P22
P22Sel,
STR_VIEW,74
Selection
BACnet object
R/W
Signal type
Range
None
-
-
-
Differential pressure exhaust air fan
DiffPFanEh
R
Integrated sensor
0…3000 Pa
Extract air pressure
PEx
R
Integrated sensor
-3000…3000 Pa
Input X21
Parameter
BACnet object
Selection for X21
X21Sel,
STR_VIEW,181
Selection
BACnet object
R/W
Signal type
Range
None
-
-
-
Extract air temperature
TEx
R
NTC10k
-50…80 °C
Exhaust air temperature
TEh
R
NTC10k
-50…80 °C
Supply air temperature after heat exchanger TSuAfHExg
R
NTC10k
-50…80 °C
Supply air temperature after preheating coil
TSuAfPreHcl
R
NTC10k
-50…80 °C
Flow temperature preheating coil
TFlPreHcl
R
NTC10k
-50…80 °C
Frost protection temperature for heating coil
TFrPrtHcl
R
NTC10k
-50…80 °C
Input X22
Parameter
BACnet object
Selection for X22
X22Sel,
STR_VIEW,183
Selection
BACnet object
R/W
Signal type
Range
None
-
-
-
Extract air quality
AQualEx
R
0…10V
0…2000 ppm
Relative humidity for extract air
HuRelEx
R
0…10V
0…100 %
Particulate matter in room
PmR
R
0…10V
0…500 µg/m3
Configuration
Configuring the hardware
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