Systemair AB reserves the rights to alter their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.
Low speed
Normal speed
High speed
Low + Normal speed
Normal + High speed
When defrosting
Supply + Extract
Supply
Extract
Sensor value
Compensation
All levels
Low speed
Normal speed
High speed
Low + Normal speed
Normal + High speed
All modes
When defrosting
Supply + Extract
Supply
Extract
Sensor value
Compensation
All levels
Low speed
Normal speed
High speed
Low + Normal speed
Normal + High speed
All modes
When defrosting
Supply + Extract
Supply
Extract
Sensor value
Compensation
3.2Temperature
Function
Temperature⊠ °C
Temperature control type and set point□ Supply18 °CSupply°
Neutral zone type⊠ ½ neutral zone
Neutral zone
Default setting
□ °F
⊠ Extract22 °CExtract
□ Room22 °CRoom
□ Neutral zone to cooling
□ Neutral zone to heating
0 °C
Set value
°C
°F
½ neutral zone
Neutral zone to cooling
Neutral zone to heating
°
°
°
206951 | A011
Function settings
|
4
Function
Summer/Winter mode
Summer mode temperature set point□ Supply__________°CSupply°
Switch between cascade control during
Summer and outdoor compensated
supply control during Winter
Type of switch to indicate Summer□ CalenderCalender
If outdoor comp. temp. control
Default settingSet value
⊠ No
□ Yes
□ Extract
□ Room__________°CRoom
□ No
□ Yes
From Date:
_____
To Date:
_____
□ Digital input
□ Outdoor temp.
__________°C
Month:
_____
Month:
_____
> 13 °C
No
Yes
Extract
No
Yes
From Date:
To Date:
Digital input
Outdoor temp.
Month:
Month:
>
°
°
Outdoor temp/setpoint
Curve point 1, 2, 3, 4:
If cascade control:
Min supply air temp. limit14 °C°
Max supply air temp. limit
Cooling recovery
Mode
Start at temp. difference
Cooling
Type of cooler
If water cooler
Type of feedback, pump
Pump stop delay
-20 / 25 °C°
-10 / 23 °C
0 / 22 °C
10 / 18 °C
30 °C
⊠ On
□ Off
2 °C
□ Water
□ DX
□ None
⊠ Alarm
□ Run indication
5 min
On
Off
Water
DX
None
Alarm
Run indication
°
°
°
°
°
min
206951 | A011
Function settings
|
5
Function
If DX cooler
Reduction of min limit supply air temp.
when DX cooling
Min setpoint deviation to allow start of
DX-cooling
Control function cooling
If step controller
Type of step control□ Sequential
Number of steps
Freeze protection
Type of freeze protection
Alarm limit when unit is running
P-band when unit is running
Default settingSet value
5 °C°
2 °C
□ 0-10 V
□ Step controller
□ Binary
□ 1
□ 2
□ 3
□ 4
□ None
⊠ Temp. sensor
□ Guard
7 °C
5 °C
°
0-10 V
Step controller
Sequential
Binary
1
2
3
4
None
Temp. sensor
Guard
°
°
Set point when unit is stopped
HW pump control
Pump running mode
Type of feedback
Pump stop delay
Pump running when outdoor temp. is
below:
Hysteresis to allow pump stop
20 °C
⊠ Auto
□ Always running
□ None
⊠ Alarm
□ Run indication
5 min
10 °C
1 °C
°
Auto
Always running
None
Alarm
Run indication
min
°
°
206951 | A011
Function settings
|
6
3.3Temperature (Zone control)
Function
Zone control
Zone control limitation⊠ None
Temperature zone 1⊠ No
Temperature control type and set point□ Supply__________°CSupply°
Neutral zone
If cascade control:
Min supply air temp. limit
Max supply air temp. limit
Heating
Type of heater
Type of feedback, heater
If water heater
Pump control
Pump stop delay
Default setting
□ Interlock heating/cooling
□ Yes
□ Extract
□ Room__________°CRoom
__________°C
__________°C
__________°C
□ None
□ Water
□ Electric
□ None
□ Alarm
□ Run indication
□ None
□ Auto
□ Always running
5 min
__________°C
Set value
None
Interlock heating/cooling
No
Yes
Extract
None
Water
Electric
None
Alarm
Run indication
None
Auto
Always running
°
°
°
min
°
°
Pump running when outdoor temp. is
below:
Hysteresis to allow pump stop
Freeze protection
Alarm limit when unit is running
P-band when unit is running
Set point when unit is stopped
10 °C
1 °C
□ No
□ Yes
7 °C
5 °C
20 °C
°
°
No
Yes
°
°
°
206951 | A011
Function settings
|
7
Function
Cooling
Type of cooler
Type of feedback, cooler
If water cooler
Pump control
Pump stop delay
If DX cooler
Reduction of min limit supply air temp
Type of step control□ Sequential
Number of steps
Temperature Zone 2□ No
Temperature control type and set point□ Supply__________°CSupply°
Default settingSet value
□ None
□ Water
□ DX
□ None
□ Alarm
□ Run indication
□ None
□ Auto
□ Always running
5 min
5 °C
□ Binary
□ 1
□ 2
□ Yes
None
Water
DX
None
Alarm
Run indication
None
Auto
Always running
Sequential
Binary
1
2
No
Yes
min
°
Neutral zone
If cascade control:
Min supply air temp. limit
Max supply air temp. limit
Heating
Type of heater
Type of feedback, heater
If water heater
Pump control
Pump stop delay
Pump running when outdoor temp. is
below:
Hysteresis to allow pump stop
□ Extract__________°CExtract
□ Room__________°CRoom
__________°C
__________°C
__________°C
□ None
□ Water
□ Electric
□ None
□ Alarm
□ Run indication
□ None
□ Auto
□ Always running
5 min
10 °C
1 °C
None
Water
Electric
None
Alarm
Run indication
None
Auto
Always running
°
°
°
°
°
min
°
°
206951 | A011
Function settings
|
8
Function
Freeze protection
Alarm limit when unit is running
P-band when unit is running
Set point when unit is stopped
Cooling
Type of cooler
Type of feedback, cooler
If water cooler
Pump control
Pump stop delay
If DX cooler
Reduction of min limit supply air temp
Default settingSet value
□ No
□ Yes
7 °C
5 °C
20 °C
□ None
□ Water
□ DX
□ None
□ Alarm
□ Run indication
□ None
□ Auto
□ Always running
5 min
5 °C
No
Yes
None
Water
DX
None
Alarm
Run indication
None
Auto
Always running
°
°
°
min
°
Type of step control□ Sequential
Number of steps
Temperature Zone 3
Temperature control type and set point□ Supply__________°CSupply°
Neutral zone
If cascade control:
Min supply air temp. limit
Max supply air temp. limit
Heating
Type of heater
Type of feedback, heater
□ Binary
□ 1
□ 2
□ No
□ Yes
□ Extract__________°CExtract
□ Room__________°CRoom
__________°C
__________°C
__________°C
□ None
□ Water
□ Electric
□ None
□ Alarm
□ Run indication
Sequential
Binary
1
2
No
Yes
°
°
°
None
Water
Electric
None
Alarm
Run indication
°
°
206951 | A011
Function settings
|
9
Function
If water heater
Pump control
Pump stop delay
Pump running when outdoor temp. is
below:
Hysteresis to allow pump stop
Freeze protection
Alarm limit when unit is running
P-band when unit is running
Set point when unit is stopped
Cooling
Type of cooler
Type of feedback, cooler
If water cooler
Pump control
Pump stop delay
Default settingSet value
□ None
□ Auto
□ Always running
5 min
10 °C
1 °C
□ No
□ Yes
7 °C
5 °C
20 °C
□ None
□ Water
□ DX
□ None
□ Alarm
□ Run indication
□ None
□ Auto
□ Always running
5 min
None
Auto
Always running
No
Yes
None
Water
DX
None
Alarm
Run indication
None
Auto
Always running
min
°
°
°
°
°
min
If DX cooler
Reduction of min limit supply air temp
Type of step control□ Sequential
Number of steps
5 °C
□ Binary
□ 1
□ 2
°
Sequential
Binary
1
2
206951 | A011
Function settings
|
10
3.4General
Function
General
Extended operation stop delay0 minmin
Warm start when outdoor temp. is
below:
CO
control
2
Supply air fan set point when CO
control
Extract air fan set point when CO
control
Start limit
Stop hysteresis
Min time for CO
Free cooling
control
2
2
2
Default setting
3 °C
⊠ No
□ Fan start/stop
□ Low
⊠ Normal
□ High
□ Low
⊠ Normal
□ High
800 ppm
160 ppm
20 min
⊠ No
□ Yes
Set value
°
No
Fan start/stop
Low
Normal
High
Low
Normal
High
ppm
ppm
min
No
Yes
Running when day outdoor temp. is
above:
Stop when night outdoor temp. is above:
Stop when night outdoor temp. is below:
Stop when room temp. is below:
Free cooling start/stop hour
Time to block heat output after free
cooling:
Offset from normal speed when free
cooling:
22 °C°
18 °C
10 °C
18 °C
Start: 00:00
Stop: 07:00
60 min
SAF: 0
EAF: 0
Start:
Stop:
SAF:
EAF:
°
°
°
min
206951 | A011
Function settings
|
11
Function
Support control
Start heating room temperature15 °C°
Stop heating room temperature
Start cooling room temperature
Stop cooling room temperature
Preheater
Start/Stop function
Preheater setpoint:
Exchanger defrosting mode (only
applied for SC, SX/C, TX/C, FC units)
Bypass⊠ On
Stop defrosting
Outdoor temp. to allow defrosting
Default setting
⊠ No
□ Yes
21 °C
30 °C
28 °C
⊠ No
□ Yes
⊠ Unit running
□ When defrosting
-15 °C
⊠ Pressure monitoringPressure monitoring
□ Off
⊠ On
□ Off
18 °C
Set value
No
Yes
No
Yes
Unit running
When defrosting
On
Off
On
Off
°
°
°
°
°
Outdoor temp. for stop of supply air fan
Max deviation exchanger pressure to
start defrosting
Pressure hysteresis to end defrosting
Exchanger defrosting mode (only
applied units with section defrosting)
Allow fan stop defrosting if exchanger
pressure > max limit
Max allowed deviation exchanger
pressure when defrosting
Max deviation exchanger pressure to
start defrosting
Pressure hysteresis to end defrosting
Setpoint temperature min limit
Temperature hysteresis to end
defrosting
Calibration extract air flow
Calibration exchanger pressure
18 °C
50 %
60 %
⊠ Section defrostingSection defrosting
⊠ Yes
□ No
150%
25%
60%
4 °C
4 °C
_____________
_____________
°
%
%
Yes
No
%
%
%
°
°
206951 | A011
12
Function settings
|
Function
Fire function
Operation mode when
fire alarm
Supply air fan setpoint
type
Extract air fan setpoint
type
Outdoor air damper
function
Default settingSet value
⊠ Stopped
□ Continuous run
□ Only supply air fan
□ Only extract air fan
□ Running via normal start/stop conditions
□ Auto
□ Low
□ Normal
□ High
□ Manual output
□ Manual setpoint
□ Auto
□ Low
□ Normal
□ High
□ Manual output
□ Manual setpoint
⊠ Normal
□ Open
□ Closed
__________ %
__________
__________ %
__________
Stopped
Continuous run
Only supply air fan
Only extract air fan
Running via normal start/stop conditions
Auto
Low
Normal
High
Manual output
Manual setpoint
Auto
Low
Normal
High
Manual output
Manual setpoint
Normal
Open
Closed
%
%
Exhaust air damper
function
⊠ Normal
□ Open
□ Closed
Normal
Open
Closed
206951 | A011
Setting the weekly program |
4Setting the weekly program
Factory setting of the normal and low fan speed are:
• High fan speed 00:00 to 00:00 Monday to Sunday.
• Normal fan speed 07:00 to 16:00 Monday to Sunday.
• Low fan speed 00:00 to 24:00 Monday to Sunday.
• Settings of 00:00 to 00:00 stops the unit. E.g. changing low fan speed setting from 00:00-24:00 to 00:00-00:00 will
stop the unit outside the time of normal fan speed.
Note:
High fan speed has priority over normal fan speed which has priority over low fan speed.
WeekdayPeriodLow fan speedNormal fan speedHigh fan speed
Note any changes from the factory default input and output allocation configuration. Fill in any related information in
the comment field. E.g. a pressure sensors measuring range, a contact’s polarity or similar.
Note:
Make notes of any additional connected accessories or external signals in the air handling unit’s wiring diagram!