Recirculation - Helios AIR1 XH 1000-8500 Notice De Montage Et D'entretien

Installation and Operating Instructions
Central ventilation units AIR1 XH
Ventilation
Hysteresis
window
High
stage
Low stage
or reduced
ventilation
Start: Activation
low stage
• Reduced: Activation of ventilation stage "reduced"
• Boost: Activation of ventilation stage "boost"
• Diff: hysteresis
VOD stop time: As soon as the ventilation unit has been operating at the "boost" 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.
Settings for the ventilation mode:
• Log on as User or Admin
• Call up the "Temperature" menu
• Set the setpoint (temperature) for recirculation
• Set supply air fan offset (deviation)
→ Temperature
Fan control
Timer
Access rights
Temp. setpoint for
recirculation (supply air /
extract air / room))
XX.X °C
SAF offset for
frequency regulation
Recirculation: XX.X m³/h
↓
The recirculation mode can be set as follows:
• Using the recirculation timer
• Using the external switch contact DI8
If the VOD timer and recirculation timer are active at the same time and no air quality sensors reach the sensor limits
(boost ventilation), the unit will switch to recirculation mode.
If a connected sensor reaches the sensor limit, the recirculation mode will stop and the unit will run in sensor-controlled
operation (VOD).
Hysteresis
window
CO2 / VOC / relative
humidity measurement
Activation
high stage
↑
OK OK
↓
↑
OK OK
↓
↑
OK OK
54
OK OK
OK OK
OK OK
EN