16
Product- and functional description,
continued
Built in hygrostat,
continued
If you want to set the hygrostat lower than 60 %RH, turn the adjusting screw clockwise.
We recommend installing an external hygrostat if you want to change/adjust the setting
of relative humidity very often.
Connection of
external hygrostat
Connect an external hygrostat by uncoupling the built-in hygrostat from the terminals
21/22 and then connecting the external hygrostat to these terminals. The hygrostat ca-
ble is led out through the base of the unit and the hygrostat is fixed to a wall in an ap-
propriate place. The outlet for the external hygrostat is 12 V.
Fan control
When the dehumidifier is started by the hygrostat, the fan is activated at the same time
as the compressor. If continuous ventilation is required – i.e. independent of the dehu-
midification demand – a bridge must be made between the terminals 25 and 26.
Compressor control The number of compressor startings is limited by a 6 minutes timer, which starts when
the compressor is switched on. The timer must have come to an end before the com-
pressor can be switched on again.
Each time the unit has been switched off on the main switch, by the built-in hygrostat,
or by an external hygrostat, it will take 30 seconds before the unit can be switched on
again. This is a safety function protecting the compressor against overloading caused
by too high pressure in the cooling circuit at start up.
Display indications A display on the side of the unit clearly indicates the working modes.
Part
Function
Power is on
The LED lights up in green when power is connected to
the unit.
During continuous ventilation there are no display indi-
cations. In this operation mode the flash will light up
constantly in green to show that power is on
Cooling cir-
cuit failure –
the dehumidi-
fier is
switched off
Pressure or temperature on the HP side of the cooling
circuit is too high and therefore the unit was switched
off automatically in order to protect the compressor. Af-
ter 45 minutes the unit restarts automatically.
After restart the triangle LED will flash on and off in red
to indicate that the unit is working and that the conden-
ser sensor has registered a failure on the unit. To turn
off the triangle LED, disconnect and connect the power
supply to the unit
Ambient tem-
perature be-
low 3 °C – the
dehumidifier
is switched
off
The dehumidifier starts again automatically when the
ambient temperature increases to more than 3 °C.
Continued overleaf
