Sensor-Controlled Operation (Vod - Ventilation On Demand); Recirculation - Helios AIR1 XC Serie Montage- Und Betriebsvorschrift

Installation and Operating Instructions
EN
Compact Ventilation Units AIR1 XC
• If the sensor signal reaches the sensor limit, the unit will switch back to recirculation mode.
• The recirculation mode will not work if the minimal, normal or intensive timers are running at the same time, since
it has a lower priority.
c . Holiday
Up to 24 separate holiday periods can be set for a whole year.
Set holiday calendar:
• Log on as User or Administrator
• Call up the "Timer settings" menu
• Holiday according to programme "Set daily/weekly programme". The ventilation unit always runs pursuant to the-
holiday settings during holiday periods
• Call up holiday calendar
• Set holiday periods
Holiday (mm:dd)
1: XX-XX – XX-XX
2: XX-XX – XX-XX
3: XX-XX – XX-XX

4 .0 .3 Sensor-controlled operation (VOD - Ventilation on demand)

The sensor-controlled operation function (Ventilation on demand = VOD) must first be set in the commissioning
assistant.
The sensor-controlled operation only works in "Constant volume flow mode" or "Constant speed mode". The sen-
sor-controlled operation function can only be activated using the VOD timer.
The sensor-controlled operation is only used to achieve improved room air quality. In this respect, the use of air quality
sensors (KWL-CO2, KWL-FTF, KWL-VOC) is required. This mode can also be used for multiple connected sensors.
A signal converter (AIR1-SK) must be used if more than 3 sensors are to be connected. The sensor with the highest
ventilation requirement determines the ventilation operation mode.
Ventilation
Hysteresis
window
High
stage
Low stage
or minimal
ventilation
Start: Activation
low stage
• Minimal: Activation of ventilation stage "minimal"
• Intensive: Activation of ventilation stage "intensive"
• Diff: hysteresis
VOD stop time: As soon as the ventilation unit has been operating at the "intensive" ventilation stage for longer than 2
hours, the sensor-controlled operation will stop for the set overrun time. 0 hours means that the sensor-controlled
operation will not stop due to a high sensor requirement.
→ Timer VOD
Timer recirculation
Holiday
Overrun
Timer VOD
Monday
Per 1: XX:XX – XX:XX
Per 2: XX:XX – XX:XX

4 .0 .4 Recirculation

All extract air is returned to the supply air in recirculation mode.
A separate temperature setpoint and fan offset are available in recirculation mode.
The commissioning assistant must first be activated in order to use the ventilation mode.
↑
OK OK
↓
Hysteresis
window
CO2 / VOC / relative
humidity measurement
Activation
high stage
↑
OK OK
↓
35
OK OK
OK OK