20 Wiring diagrams
28
When manually switching off with switch S1, if the
unit is in:
• full load operation, i.e. humidity is present, the
unit continues to run until the humidity drops
below the saved reference value. After the 15
minutes of overrun time, the fan switches back
to base load operation.
• base load operation, the unit switches itself off
automatically.
Note: The unit may start up automatically if switch
S1 is open.
H switching variant 3
Manual full load operation with pre-defined
overrun time.
Switching on
The unit is switched manually to full load with
switch S1. Humidity control is active.
Switching off
When switching off with S1, the unit continues in
full load operation for an overrun time of 15
minutes. If, after this time, the humidity as meas-
ured at the unit:
• is higher than the saved reference value, the
fan continues to run in full load operation until
the humidity drops below the reference value.
After the 15 minutes of overrun time, the fan
switches back to base load operation.
• is lower than the saved reference value, the fan
automatically switches off after an overrun time
of 15 minutes.
If switch S1 is open, the unit can start up auto-
matically as a result of high room humidity.
*
With switch S2
, the unit can also be switched
off independently of the room lighting in the event
of malfunctions caused by reverse polarity
voltages, for example. The humidity function is
then inactive.
ER-AP 60 G, ER-APB 60 G
ER-AP 100 G, ER-APB 100 G
G model
The unit with base load function can be run at
base load or full load as required.
Switching on
If switch S1 is pressed, the unit runs permanently
in base load operation (continuous operation at
low speed and low air volume). If the room light-
ing is also switched on with switch S2, the unit
runs at full load (operation at high speed and
maximum volumetric flow).
Switching back into base load operation
