Trox Technik FSL-CONTROL II Installation And Configuration Manual page 30

Control of ventilation units
FSL‑CONNECT software > Setting control temperatures and operating times (commissioning wizard, or ...
Night purge
In the summer months (can be configured; factory set-
ting: May to September), the night purge function allows
for the building to be cooled during the nights, which is
energy efficient. The room temperature will then have
reached a comfortable level by the time the building is
occupied. The night purge function must be initiated by
a higher-level system (RTC, central BMS or DI); night
purge is only possible in 'Unoccupied' mode. If the room
temperature exceeds the cooling setpoint value and if
the outdoor air temperature is at least 2 K (can be con-
figured) below the cooling setpoint value, the heat
recovery will be bypassed and the room will be venti-
lated by the fan (fan stage can be configured; factory
setting: maximum fan speed).
Saving energy
Night purge provides a high energy savings potential
since rooms can be 'pre-cooled' at night without
using a cooling unit.
30 Single room control system FSL‑CONTROL II