Product and functional description
Introduction
This chapter gives a description of the dehumidifier and its functionality:
• Functionality of the dehumidifier
• CDG2 controller
• Display, LED
• Hygrostat control
Illustration
Two examples of CDT dehumidifiers:
Functionality of
The CDT dehumidifiers are working in accordance with the condensation principle.
the dehumidifier
The humid air is drawn in by a fan. The air passes through a filter and is cooled down
on the evaporator. This will bring the air temperature down below the dew point, which
makes the water vapour condense to droplets on the evaporator.
The droplets fall onto a condensate tray and are led to a water container or to a drain.
The cold air is then led through the condenser where it is reheated. This heat comes
from the condensation process and from the compressor and fan energy, which is
turned into heat. Therefore the air leaves the dehumidifier at a temperature that is
higher than at the entrance. The approx. increase in temperature is 5 °C.
The continuous air circulation through the unit reduces the relative humidity giving rapid
but gentle drying.
If the water container has to be emptied, see "User's guide", page 26.
The CDT-series are equipped with an electronic CDG2-controller.
CDG2-controller
The electronics control all:
• Safety functions
• Control functions
• On/off functions
The meaning of the single LEDs are described below.
Fig. 13
CDT 22/35/50/85
• Connection of hygrostat
• Condensate drain
• Condensate drain
• Flexible hoses
Fig. 14
CDT 35S
Continued overleaf
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