SystemAir SysAer SR55 - 4 Room Air Quality Control

English
T
EXT
[°C]
STPCOMP
(10°C)
DIFFC (+10°C)
(0°C)
COMPM
(2°C)
T
EXT
[°C]
DIFFC
10°C0°C
COMPM
19°C
21°C
Heating STP
T
EXT
[°C]
STPCOMP
(0°C)
DIFFC (-10°C)
(10°C)
COMPM
(2°C)
T
EXT
[°C]
DIFFC
10°C0°C
COMPM
19°C
21°C
Heating STP
0%
100%
Economizer
Air
Quality
(%)
AirQ_STP
AirQ_diff
22 SysAer
Compensation - Positive differential
Example with manual Heating setpoint = 21°C
Compensation - Negative differential
Example with manual Heating setpoint = 21°C
Winter Compensation
Winter set point compensation is enabled when the following conditions are encountered:
the unit is in winter mode
STPCOMP
Compensation set point [°C]
COMPM
Maximum compensation [°C]
DIFFC
Compensation differential [°C]
T
EXT
External temperature [°C]
4. ROOM AIR QUALITY CONTROL
Room air quality control opens the external damper to increase the percentage of fresh air when the room
air is too much polluted compared to the IAQ (Indoor Air Quality) sensor setpoint.
This function is available only with the IAQ sensor option, which is incompatible with the Indoor air humidity
sensor option. It requires the 2 or 3-damper options.
External damper is controlled by IAQ as illustrated in the gure below:
NB:
When this function asks for opening the external damper at the same time as freecooling for example, the
highest opening has the priority.