OperatiOn
Settings
20
| VrL-C 300/625/870
www.stiebel-eltron.com
4.3 Operating modes
Three operating modes can be selected in the default display.
- Unit Off
- Manual
- Auto
4.3.1 "Manual" mode
In "Manual" mode, the unit operates according to the values which
have been set manually.
You can activate the operating mode as follows:
↵
f
f
Press the "Enter" button.
↑
f
f
Press the "Up" button repeatedly until "Manual" mode
is displayed.
↵
f
f
Press the "Enter" button.
↑
f
f
Press the "Up" button repeatedly until the required
fan stage is displayed.
↵
f
f
Confirm with the "Enter" button.
The unit starts up. It takes approximately 10 minutes for the unit
to become fully operational, during which the "Unit Off" symbol
flashes. The "Manual mode" symbol is then displayed.
4.3.2 "Auto" mode
In "Auto" mode, the unit is controlled automatically.
You can activate the operating mode as follows:
↵
f
f
Press the "Enter" button.
↑
f
f
Press the "Up" button repeatedly until "Auto" mode is
displayed.
↵
f
f
Confirm with the "Enter" button.
In "Auto" mode, the unit regulates air capacity according to prior-
ities.
The priority depends on the installed sensors. The sensors
can also be connected and commissioned retrospectively.
Note
Additional sensors may only be installed and commis-
sioned by a qualified contractor.
priority
Designation
availability
High
Active frost protection
Only units with the hx module have this
function. The hx module is an additional
energy saving control function which
allows you to activate the preheating coil
dependent on humidity levels. It does this
by using a dew point calculation based on
the hx diagram.
Active cooling
Only units with a cooling unit have this
function.
Medium
NightCooling
Standard
Minimum vent.
Standard
Interm.vent
This function is not available for all units.
External 0-10 V
This function is not available for all units.
The unit's air capacity can be regulated by
means of an external 0-10 V signal. When
this function is enabled, other parameters
for controlling air capacity are inactive.
Low
VOC/CO
2
Sensor available as accessory
Time program
Standard
Motion sensor
Sensor available as accessory
4.3.3 "Unit Off" mode
"Unit Off" mode switches off the fans permanently.
You can activate the operating mode as follows:
↵
f
f
Press the "Enter" button.
↑
f
f
Press the "Up" button repeatedly until "Unit Off"
mode is displayed.
↵
f
f
Press the "Enter" button twice.
The unit switches off the ventilation after a few minutes. The dis-
play shows the "Unit Off" symbol.
