Dantherm CDP 50 Service Manual page 13

Product and functional description - continued
Compressor control
Defrosting
Safety circuit
The number of compressor starts 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 compressor can be switched on again.
Each time the unit has been switched o 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 feature protecting the compressor against overloading caused by too high
pressure in the cooling circuit at start up.
This unit is equipped with an intelligent defrosting strategy.
The unit monitors the temperature of the evaporator, and when the temperature have been
below a certain temperature for a period of time, then the dehumidi er will switch to active
defrosting, the fans will stop, and the magnetic valve will open.
The hot gas can now pass through the evaporator.
When the evaporator have the right temperature again the magnet valve will close and the
dehumidi cation will continue.
If the temperature in the dehumidi er increases to a temperature of more than 55 °C (in case
of fan failure or room air temperature higher than 36 °C), the compressor stops automatically to
avoid damaging it. When the temperature allows for it the dehumidi cation will continue.
EN
13