Functions
WE
Configuration
Assignment of inputs AE1 to AE4
OFF
Fb18 = ON,
option:
AE4L
Parameters
WE
Range of values
Air quality set point
50
0 to 100
Differential gap of speed 2 -> 1
5
5 to 30
6.11.5 Fan operation feedback
The operation feedback of the fans can be evaluated with the binary input BE2. If the floating
BE2 input makes contact – after the fans are enabled and the delay time has elapsed – the
ventilation system is deactivated.
STOP
blinks on the display. First when the next time-of-use
starts, a new attempt to start is made automatically.
Functions
WE
Configuration
Fan operation feedback to BE2
OFF
180 sec
Fb14 = ON
START (delay time) / 0 to 180 sec
Note!
To start the deactivated system manually, switch the operating mode switch briefly from auto-
matic operation to reduced operation and back again to trigger an external demand for op-
eration or press an external key intended for this purpose (confirm the fault by closing BE2)
for at least one second.
6.11.6 Enabling the cold storage
In all systems with cooling coil, the binary output BA4 can be used to enable the charging of
a cold storage. If the outdoor temperature measured over an hour exceeds the value
En-
abling the cold storage at outdoor temperature (START), BA4 is switched on. If the value falls
below the limit for an hour, BA4 is switched off.
Functions
WE
Configuration
Cold storage
OFF
18 °C
Fb12 = OFF
START (enabling the cold storage ) / 0 to 30 °C
64
EB 5477 EN
Control functions