7.1.3 Extra credit
300 Moisture reduction
Activation of moisture mitigation.
301 Moisture setpoint
Setpoint for humidity control, RF%.
302 Capacity increase
Capacity increase of supply and extract air in % with humidity control.
303 Coupling diff humidity control
Coupling differential moisture control. Starts at setpoint, stops at setpoint minus switching diff.
310 Supply air pressure control (accessory)
Activation of function. Off/Pressure/Flow/Slav/Measurement Pa/Measurement l/s.
- Pressure: The supply air fan regulates to achieve the set pressure.
- Flow: The supply air fan regulates to achieve the set flow, flow meter cone required.
- Slave: The supply air fan follows the extract air fan with a difference set in parameter 313.
- Measured value Pa: No control of the supply air fan, only display of the current pressure.
- Measured value l/s: No control of the supply air fan, only display of the current flow.
- Slave can only be selected if the extract air is not slave.
311 Exhaust air pressure control (accessory)
Activation of function. Off/Pressure/Flow/Slav/Measurement Pa/Measurement l/s.
- Pressure: The exhaust fan regulates to achieve the set pressure.
- Flow: The exhaust fan regulates to achieve the set flow, flow meter required.
- Measured value Pa: No control of the supply air fan, only display of the current pressure.
- Measured value l/s: No control of the supply air fan, only display of the current flow.
- Slave can only be selected if the supply air is not slave.
312 Pressure sensor measuring range
Linear input signal, 0V from the pressure sensor corresponds to 0Pa and 10V corresponds to the set value in the parameter.
313 Slave control Difference
The control signal of the fan set to slave receives the control signal of the other fan + set differential.
Supply air = slave -> Supply air control signal = extract air control signal + percentage difference.
Exhaust air = slave -> Exhaust air control signal = supply air control signal + percentage difference.
314 K-factor
K-factor for flow control in l/s, see flow measurement cone.
| Type | K-factor | Unit |
|---|---|---|
| A590T | 25,8 | l/s |
| A600S/T | 25,8 | l/s |
| A890T | 32,2 | l/s |
| A900S/T | 32,2 | l/s |
| A1 | 32,2 | l/s |
| A2 | 52,2 | l/s |
315 Pressure control P-factor
P-factor of the pressure regulator.
P-Band = Pressure setpoint * P-Factor.
316 Pressure regulation I-Tid
Integration time of the pressure regulator.
317 Alarm limit pressure deviation
Alarm is triggered if the pressure setpoint is not reached within the pressure deviation tolerance and after the alarm delay time.
The same alarm limit applies to supply and extract air.
330 Air quality sensor (accessory)
Activation of the connected air quality sensor.
- Regulates by air quality only in timer mode.
- The air quality control symbol is displayed in the “External box”, at the save/comfort and forcing button the timer symbol is displayed to indicate the current capacity.
- Operating mode Save if air quality value is less than setpoint parameter 332 - switching differential parameter 333.
- Operation mode Forcing if air quality value is higher than setpoint parameter 332 + switching differential parameter 333.
- Comfort operating mode if the air quality value is between setpoint parameter 332 +/- switching differential parameter 333.
- Hysteresis 1/10 of the coupling difference in parameter 333.
331 Air quality sensor measuring range
Maximum measurement range of the air quality sensor. Linear input signal: 0 V from the air quality sensor corresponds to 0 ppm, and 10 V corresponds to the value set in the parameter.
332 Setpoint air quality sensor
Air quality set point value, in PPM.
333 Switching differential air quality sensor
Air quality coupling differential, in PPM.
