Delayed switch off

If the air handling units is equipped with a humidifier, an electric heater or a DX cooler, these devices have to switched off earlier than the rest of the equipment.

The user has to take care to set the parameter STOP-01 (delayed switch-off type) to the correct value, if this air handling units is equipped with a humidifier, an electric heater or a DX cooler.


In case of humidification, the humidifier will be stopped immediately, but the air handling unit will continue to run, to remove the moisture out of the ducts and thus prevent condensation problems.

To increase the energy efficiency, the delayed switch-off for humidification (parameter STOP-01 = 1), will happen only if the HumidityMode = 1 (humidification). The air handling unit will continue to run for the time defined in parameter STOP-02.

During this delay time the PlantMode will have a value of  “6”.


HumidityMode

Code

No humidification or dehumidification

0

Humidification

1

Dehumidification

2


In case electric heaters or DX coolers the delayed switch-off will happen always, during switch-off.

This avoids over heating of electric heater and condensation at the DX cooler.


Warning:


Description

Default value

STOP-01: delayed switch-off type

0 = no delayed switch-off

1 = humidification

2 = electric heating or DX cooling

0

STOP-02: delayed switched-off time

180 sec