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Master reset / Standard functions
Master reset
Take the programming module (BML) in the ventilation unit out
of its wall mounting base and clip it back in again while holding
down the r.h. selector.
Hold the selector down until Parameter reset appears on the
display.
The following values are reset to their factory settings:
- Zone designat
- Language
- Key lock
- Auto summertime
- System parameters
Please note
Also carry out a master reset if an eBUS error occurs when the
system is first switched on.
Standard functions
The standard functions of the controller are described below.
Motor protection
The motor winding temperature is monitored with the aid of
thermistors set into the motor windings or PTC thermistor
pellets.
If the winding temperature rises above the defined value, the
motor and all outputs are switched off. A fault message is
displayed on the programming module. The motor will only
restart once the fault is removed (motor cooled down) and the
fault message is reset.
The fault is reset by acknowledging the fault on the BML
programming module.
Relevant parameters: none
Room frost protection
(room sensor)
The room frost protection function prevents the room from
cooling down too much, thereby preventing damage to the
building that might otherwise result
(moisture damage, mould growth, etc.).
Relevant parameters:
Room frost protection on (LM023),
Room frost protection temperature (LM024)
Pre-requisites:
Room sensor / extract air sensor
If the room temperature falls below the set value, HR,
the reheater and the fan are activated and the outside air
dampers are opened. Once the temperature rises 1 K above
the set temperature, the system stops again.
This works in all operating modes
