20
Product and functional description
Illustration
Illustration of the functional principle of the CDP 35/45/65:
Functionality of
the dehumidifier
CDP 35/45/65 is working in accordance with the condensation principle.
The humid air is drawn into the unit by one, two or three fans.
When passing through the evaporator the air is cooled down to below dew point and
water vapour is condensed into water, which is drained away.
The now dry air is then passed over the condenser coil where the air is heated.
As a result of the released evaporator heat and the working energy of the compressor
being turned into heat energy, more heat is returned to the air than was previously ex-
tracted. This extra heat corresponds to an approximate increase in temperature of 5 °C.
The repeated circulation of air through the unit reduces the relative humidity, giving very
rapid but gentle drying.
Fan control
When the dehumidifier is started by the hygrostat, the fan(s) are activated at the same
time as the compressor.
If continuous ventilation is required – i.e. independent of the dehumidification demand –
a bridge must be made between the terminals 25 and 26.
Compressor
control
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 compres-
sor 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.
Continued overleaf
Warm humid air
Warmer and dehumidified air
Summary of Contents for CDP 35
Page 57: ...57 975675 Version 2 6 16 02 2011 57 58 60 62 63 64 67 68 69...
Page 60: ...60 CDP 35 45 65 CDP 35 45 65 5 25 26 10 1 6 30 30...
Page 61: ...61 975675 Version 2 6 16 02 2011 20 20 5 30 5 55 36 45...
Page 62: ...62 CDG3 CDP CDG3 CDP ON OFF 45...
Page 63: ...63 975675 Version 2 6 16 02 2011 60 60 60 Dantherm Air Handling A S 12 1 21 22 2 21 22 3 4...
Page 64: ...64 CDP 35 45 65 1 225 225 2 1 2 3...
Page 65: ...65 975675 Version 2 6 16 02 2011 2 85 87 I 1 0 2 0 1 3 pH 7 2 7 6 80 150 250 450 2000 360...
Page 66: ...66 NaCl 2700 3400 5500 pH 7 2 7 6 80 150 250 450 360 Dantherm Air Handling A S...
Page 67: ...67 975675 Version 2 6 16 02 2011 1 2 3 1 1 2 3 4...
